Line data Source code
1 : /* FreeTDS - Library of routines accessing Sybase and Microsoft databases
2 : * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Brian Bruns
3 : * Copyright (C) 2006-2015 Frediano Ziglio
4 : *
5 : * This library is free software; you can redistribute it and/or
6 : * modify it under the terms of the GNU Library General Public
7 : * License as published by the Free Software Foundation; either
8 : * version 2 of the License, or (at your option) any later version.
9 : *
10 : * This library is distributed in the hope that it will be useful,
11 : * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 : * Library General Public License for more details.
14 : *
15 : * You should have received a copy of the GNU Library General Public
16 : * License along with this library; if not, write to the
17 : * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 : * Boston, MA 02111-1307, USA.
19 : */
20 :
21 : #include <config.h>
22 :
23 : #include <stdarg.h>
24 :
25 : #include <freetds/time.h>
26 :
27 : #include <assert.h>
28 : #include <stdio.h>
29 :
30 : #if HAVE_STDLIB_H
31 : #include <stdlib.h>
32 : #endif /* HAVE_STDLIB_H */
33 :
34 : #if HAVE_STRING_H
35 : #include <string.h>
36 : #endif /* HAVE_STRING_H */
37 :
38 : #if HAVE_UNISTD_H
39 : #include <unistd.h>
40 : #endif /* HAVE_UNISTD_H */
41 :
42 : #if HAVE_ERRNO_H
43 : # include <errno.h>
44 : #endif /* HAVE_ERRNO_H */
45 :
46 : /**
47 : * \ingroup dblib_core
48 : * \remarks Either SYBDBLIB or MSDBLIB (not both) must be defined.
49 : * This affects how certain application-addressable
50 : * strucures are defined.
51 : */
52 : #include <freetds/tds.h>
53 : #include <freetds/thread.h>
54 : #include <freetds/tds/convert.h>
55 : #include <freetds/utils/string.h>
56 : #include <freetds/tds/data.h>
57 : #include <freetds/replacements.h>
58 : #include <sybfront.h>
59 : #include <sybdb.h>
60 : #include <syberror.h>
61 : #include <dblib.h>
62 :
63 : static RETCODE _dbresults(DBPROCESS * dbproc);
64 : static BYTE *_dbcoldata(TDSCOLUMN *colinfo);
65 : static int _get_printable_size(TDSCOLUMN * colinfo);
66 : static char *_dbprdate(char *timestr);
67 : static int _dbnullable(DBPROCESS * dbproc, int column);
68 : static const char *tds_prdatatype(int datatype_token);
69 :
70 : static int default_err_handler(DBPROCESS * dbproc, int severity, int dberr, int oserr, char *dberrstr, char *oserrstr);
71 :
72 : void copy_data_to_host_var(DBPROCESS *, TDS_SERVER_TYPE, const BYTE *, int, BYTE *, DBINT, int, DBINT *);
73 : RETCODE dbgetnull(DBPROCESS *dbproc, int bindtype, int varlen, BYTE* varaddr);
74 :
75 : /**
76 : * \file dblib.c
77 : * Main implementation file for \c db-lib.
78 : */
79 : /**
80 : * \file bcp.c
81 : * Implementation of \c db-lib bulk copy functions.
82 : */
83 : /**
84 : * \defgroup dblib_api The db-lib API
85 : * Functions callable by \c db-lib client programs
86 : *
87 : * The \c db_lib interface is implemented by both Sybase and Microsoft. FreeTDS seeks to implement
88 : * first the intersection of the functions defined by the vendors.
89 : */
90 :
91 : /**
92 : * \ingroup dblib_api
93 : * \defgroup dblib_core Primary functions
94 : * Core functions needed by most db-lib programs.
95 : */
96 : /**
97 : * \ingroup dblib_api
98 : * \defgroup dblib_rpc Remote Procedure functions
99 : * Functions used with stored procedures.
100 : * Especially useful for OUTPUT parameters, because modern Microsoft servers do not
101 : * return output parameter data to the client unless the procedure was invoked
102 : * with dbrpcsend().
103 : */
104 : /**
105 : * \ingroup dblib_api
106 : * \defgroup dblib_bcp Bulk copy functions
107 : * Functions to bulk-copy (a/k/a \em bcp) data to/from the database.
108 : */
109 : /**
110 : * \ingroup dblib_bcp
111 : * \defgroup dblib_bcp_internal Internal bcp functions
112 : * Static functions internal to the bcp library.
113 : */
114 : /**
115 : * \ingroup dblib_api
116 : * \defgroup dblib_money Money functions
117 : * Functions to manipulate the MONEY datatype.
118 : */
119 : /**
120 : * \ingroup dblib_api
121 : * \defgroup dblib_datetime Datetime functions
122 : * Functions to manipulate DBDATETIME structures. Defined by Sybase only.
123 : * These are not implemented:
124 : * - dbdate4cmp()
125 : * - dbdate4zero()
126 : * - dbdatechar()
127 : * - dbdatename()
128 : * - dbdateorder()
129 : * - dbdatepart()
130 : * - dbdatezero()
131 : * - dbdayname()
132 : */
133 : /**
134 : * \ingroup dblib_api
135 : * \defgroup dblib_internal Internals
136 : * Functions called within \c db-lib for self-help.
137 : * These functions are of interest only to people hacking on the FreeTDS db-lib implementation.
138 : */
139 : /**
140 : * \ingroup dblib_api
141 : * \defgroup dblib_unimplemented Unimplemented
142 : * Functions thus far not implemented in the FreeTDS db-lib implementation.
143 : * While some of these are simply awaiting someone with time and skill (and inclination)
144 : * it might be noted here that the old browse functions (e.g. dbcolbrowse())
145 : * are on the never-to-do list.
146 : * They were defined by Sybase and were superseded long ago, although they're still
147 : * present in Microsoft's implementation.
148 : * They were never popular and today better alternatives are available.
149 : * For completeness, they are:
150 : * - dbcolbrowse()
151 : * - dbcolsource()
152 : * - dbfreequal()
153 : * - dbqual()
154 : * - dbtabbrowse()
155 : * - dbtabcount()
156 : * - dbtabname()
157 : * - dbtabsource()
158 : * - dbtsnewlen()
159 : * - dbtsnewval()
160 : * - dbtsput()
161 : */
162 :
163 : /* info/err message handler functions (or rather pointers to them) */
164 : MHANDLEFUNC _dblib_msg_handler = NULL;
165 : EHANDLEFUNC _dblib_err_handler = default_err_handler;
166 :
167 : /** \internal
168 : * \dblib_internal
169 : * \remarks A db-lib connection has an implicit TDS context.
170 : */
171 : typedef struct dblib_context
172 : {
173 : /** reference count, time dbinit called */
174 : int ref_count;
175 :
176 : /** libTDS context */
177 : TDSCONTEXT *tds_ctx;
178 : /** libTDS context reference counter */
179 : int tds_ctx_ref_count;
180 :
181 : /* save all connection in a list */
182 : TDSSOCKET **connection_list;
183 : int connection_list_size;
184 : int connection_list_size_represented;
185 : char *recftos_filename;
186 : int recftos_filenum;
187 : int login_timeout; /**< not used unless positive */
188 : int query_timeout; /**< not used unless positive */
189 : }
190 : DBLIBCONTEXT;
191 :
192 : static DBLIBCONTEXT g_dblib_ctx;
193 : static tds_mutex dblib_mutex = TDS_MUTEX_INITIALIZER;
194 :
195 : static int g_dblib_version =
196 : #if TDS50
197 : DBVERSION_100;
198 : #elif TDS71
199 : DBVERSION_71;
200 : #elif TDS72
201 : DBVERSION_72;
202 : #elif TDS73
203 : DBVERSION_73;
204 : #elif TDS74
205 : DBVERSION_74;
206 : #else
207 : DBVERSION_UNKNOWN;
208 : #endif
209 :
210 :
211 : static int
212 864 : dblib_add_connection(DBLIBCONTEXT * ctx, TDSSOCKET * tds)
213 : {
214 864 : int i = 0;
215 864 : const int list_size = ctx->connection_list_size_represented;
216 :
217 864 : tdsdump_log(TDS_DBG_FUNC, "dblib_add_connection(%p, %p)\n", ctx, tds);
218 :
219 1466 : while (i < list_size && ctx->connection_list[i])
220 602 : i++;
221 864 : if (i == list_size) {
222 : return 1;
223 : } else {
224 854 : ctx->connection_list[i] = tds;
225 854 : return 0;
226 : }
227 : }
228 :
229 : static void
230 456 : dblib_del_connection(DBLIBCONTEXT * ctx, TDSSOCKET * tds)
231 : {
232 456 : int i = 0;
233 456 : const int list_size = ctx->connection_list_size;
234 :
235 456 : tdsdump_log(TDS_DBG_FUNC, "dblib_del_connection(%p, %p)\n", ctx, tds);
236 :
237 41966 : while (i < list_size && ctx->connection_list[i] != tds)
238 41510 : i++;
239 456 : if (i == list_size) {
240 : /* connection wasn't on the free list...now what */
241 : } else {
242 : /* remove it */
243 446 : ctx->connection_list[i] = NULL;
244 : }
245 456 : }
246 :
247 : /**
248 : * Get global dblib TDS context.
249 : * dblib_mutex should be locked.
250 : */
251 : static TDSCONTEXT *
252 1366 : dblib_get_tds_ctx(void)
253 : {
254 1366 : tdsdump_log(TDS_DBG_FUNC, "dblib_get_tds_ctx(void)\n");
255 :
256 1366 : ++g_dblib_ctx.tds_ctx_ref_count;
257 1366 : if (g_dblib_ctx.tds_ctx == NULL) {
258 502 : TDSCONTEXT *tds_ctx = tds_alloc_context(&g_dblib_ctx);
259 :
260 502 : if (!tds_ctx)
261 : return NULL;
262 :
263 : /*
264 : * Set the functions in the TDS layer to point to the correct handler functions
265 : */
266 502 : tds_ctx->msg_handler = _dblib_handle_info_message;
267 502 : tds_ctx->err_handler = _dblib_handle_err_message;
268 502 : tds_ctx->int_handler = _dblib_check_and_handle_interrupt;
269 :
270 502 : if (tds_ctx->locale && !tds_ctx->locale->datetime_fmt) {
271 : /* set default in case there's no locale file */
272 : static const char datetime_format[] = "%b %e %Y %l:%M:%S:%z%p";
273 0 : tds_ctx->locale->datetime_fmt = strdup(datetime_format);
274 0 : if (!tds_ctx->locale->datetime_fmt) {
275 0 : tds_free_context(tds_ctx);
276 0 : return NULL;
277 : }
278 : }
279 502 : g_dblib_ctx.tds_ctx = tds_ctx;
280 : }
281 1366 : return g_dblib_ctx.tds_ctx;
282 : }
283 :
284 : /**
285 : * Decrease global dblib TDS context.
286 : * dblib_mutex should be locked.
287 : *
288 : * @param count number of references to decrease.
289 : */
290 : static void
291 928 : dblib_release_tds_ctx(int count)
292 : {
293 928 : tdsdump_log(TDS_DBG_FUNC, "dblib_release_tds_ctx(%d)\n", count);
294 :
295 928 : g_dblib_ctx.tds_ctx_ref_count -= count;
296 928 : if (g_dblib_ctx.tds_ctx_ref_count <= 0) {
297 472 : tds_free_context(g_dblib_ctx.tds_ctx);
298 472 : g_dblib_ctx.tds_ctx = NULL;
299 : }
300 928 : }
301 :
302 : #include "buffering.h"
303 :
304 : static void
305 3198 : db_env_chg(TDSSOCKET * tds, int type, char *oldval, char *newval)
306 : {
307 : DBPROCESS *dbproc;
308 :
309 3198 : assert(oldval != NULL && newval != NULL);
310 3198 : if (strlen(oldval) == 1 && *oldval == 1)
311 0 : oldval = "(0x1)";
312 :
313 3198 : tdsdump_log(TDS_DBG_FUNC, "db_env_chg(%p, %d, %s, %s)\n", tds, type, oldval, newval);
314 :
315 3198 : if (!tds || !(dbproc = (DBPROCESS *) tds_get_parent(tds)))
316 : return;
317 :
318 3198 : dbproc->envchange_rcv |= (1 << (type - 1));
319 3198 : switch (type) {
320 1664 : case TDS_ENV_DATABASE:
321 1664 : strlcpy(dbproc->dbcurdb, newval, sizeof(dbproc->dbcurdb));
322 1664 : break;
323 0 : case TDS_ENV_CHARSET:
324 0 : strlcpy(dbproc->servcharset, newval, sizeof(dbproc->servcharset));
325 0 : break;
326 : default:
327 : break;
328 : }
329 : return;
330 : }
331 :
332 : /** \internal
333 : * \ingroup dblib_internal
334 : * \brief Sanity checks for column-oriented functions.
335 : *
336 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
337 : * \param pcolinfo address of pointer to a TDSCOLUMN structure.
338 : * \remarks Makes sure dbproc and the requested column are valid.
339 : * Calls dbperror() if not.
340 : * \returns appropriate error or SUCCEED
341 : */
342 : static TDSCOLUMN*
343 11736 : dbcolptr(DBPROCESS* dbproc, int column)
344 : {
345 : TDSSOCKET *tds;
346 : TDSRESULTINFO *info;
347 :
348 11736 : if (!dbproc) {
349 0 : dbperror(dbproc, SYBENULL, 0);
350 0 : return NULL;
351 : }
352 11736 : tds = dbproc->tds_socket;
353 11736 : if (IS_TDSDEAD(tds)) {
354 0 : dbperror(dbproc, SYBEDDNE, 0);
355 0 : return NULL;
356 : }
357 11736 : info = tds->res_info;
358 11736 : if (!info)
359 : return NULL;
360 11476 : if (column < 1 || column > info->num_cols) {
361 0 : dbperror(dbproc, SYBECNOR, 0);
362 0 : return NULL;
363 : }
364 :
365 11476 : return info->columns[column - 1];
366 : }
367 :
368 : static TDSCOLUMN*
369 64 : dbacolptr(DBPROCESS* dbproc, int computeid, int column, bool is_bind)
370 : {
371 : unsigned int i;
372 : TDSSOCKET *tds;
373 : TDSCOMPUTEINFO *info;
374 :
375 64 : if (!dbproc) {
376 0 : dbperror(dbproc, SYBENULL, 0);
377 0 : return NULL;
378 : }
379 64 : tds = dbproc->tds_socket;
380 64 : if (IS_TDSDEAD(tds)) {
381 0 : dbperror(dbproc, SYBEDDNE, 0);
382 0 : return NULL;
383 : }
384 32 : for (i = 0;; ++i) {
385 128 : if (i >= tds->num_comp_info) {
386 : /* Attempt to bind user variable to a non-existent compute row */
387 0 : if (is_bind)
388 0 : dbperror(dbproc, SYBEBNCR, 0);
389 : return NULL;
390 : }
391 96 : info = tds->comp_info[i];
392 96 : if (info->computeid == computeid)
393 : break;
394 : }
395 : /* Fail if either the compute id or the column number is invalid. */
396 64 : if (column < 1 || column > info->num_cols) {
397 0 : dbperror(dbproc, is_bind ? SYBEABNC : SYBECNOR, 0);
398 0 : return NULL;
399 : }
400 :
401 64 : return info->columns[column - 1];
402 : }
403 :
404 : /*
405 : * Default null substitution values
406 : * Binding Type Null Substitution Value
407 : * TINYBIND 0
408 : * SMALLBIND 0
409 : * INTBIND 0
410 : * CHARBIND Empty string (padded with blanks)
411 : * STRINGBIND Empty string (padded with blanks, null-terminated)
412 : * NTBSTRINGBIND Empty string (null-terminated)
413 : * VARYCHARBIND Empty string
414 : * BINARYBIND Empty array (padded with zeros)
415 : * VARYBINBIND Empty array
416 : * DATETIMEBIND 8 bytes of zeros
417 : * SMALLDATETIMEBIND 8 bytes of zeros
418 : * MONEYBIND $0.00
419 : * SMALLMONEYBIND $0.00
420 : * FLT8BIND 0.0
421 : * REALBIND 0.0
422 : * DECIMALBIND 0.0 (with default scale and precision)
423 : * NUMERICBIND 0.0 (with default scale and precision)
424 : * BOUNDARYBIND Empty string (null-terminated)
425 : * SENSITIVITYBIND Empty string (null-terminated)
426 : */
427 :
428 : static const DBBIT null_BIT = 0;
429 : static const DBTINYINT null_TINYINT = 0;
430 : static const DBSMALLINT null_SMALLINT = 0;
431 : static const DBINT null_INT = 0;
432 : static const DBBIGINT null_BIGINT = 0;
433 : static const DBFLT8 null_FLT8 = 0;
434 : static const DBREAL null_REAL = 0;
435 :
436 : static const DBCHAR null_CHAR = '\0';
437 : static const DBVARYCHAR null_VARYCHAR = { 0, {0} };
438 :
439 : static const DBDATETIME null_DATETIME = { 0, 0 };
440 : static const DBDATETIME4 null_SMALLDATETIME = { 0, 0 };
441 : static const DBMONEY null_MONEY = { 0, 0 };
442 : static const DBMONEY4 null_SMALLMONEY = {0};
443 : static const DBNUMERIC null_NUMERIC = { 0, 0, {0} };
444 : static const TDS_DATETIMEALL null_DATETIMEALL = { 0, 0, 0, 0 };
445 :
446 : static NULLREP default_null_representations[MAXBINDTYPES] = {
447 : /* CHARBIND 0 */ { NULL, 0 }
448 : /* STRINGBIND 1 */ , { NULL, 0 }
449 : /* NTBSTRINGBIND 2 */ , { (BYTE*) &null_CHAR, sizeof(null_CHAR) }
450 : /* VARYCHARBIND 3 */ , { (BYTE*) &null_VARYCHAR, sizeof(null_VARYCHAR) }
451 : /* VARYBINBIND 4 */ , { (BYTE*) &null_VARYCHAR, sizeof(null_VARYCHAR) }
452 : /* no such bind 5 */ , { NULL, 0 }
453 : /* TINYBIND 6 */ , { &null_TINYINT, sizeof(null_TINYINT) }
454 : /* SMALLBIND 7 */ , { (BYTE*) &null_SMALLINT, sizeof(null_SMALLINT) }
455 : /* INTBIND 8 */ , { (BYTE*) &null_INT, sizeof(null_INT) }
456 : /* FLT8BIND 9 */ , { (BYTE*) &null_FLT8, sizeof(null_FLT8) }
457 : /* REALBIND 10 */ , { (BYTE*) &null_REAL, sizeof(null_REAL) }
458 : /* DATETIMEBIND 11 */ , { (BYTE*) &null_DATETIME, sizeof(null_DATETIME) }
459 : /* SMALLDATETIMEBIND 12 */ , { (BYTE*) &null_SMALLDATETIME, sizeof(null_SMALLDATETIME) }
460 : /* MONEYBIND 13 */ , { (BYTE*) &null_MONEY, sizeof(null_MONEY) }
461 : /* SMALLMONEYBIND 14 */ , { (BYTE*) &null_SMALLMONEY, sizeof(null_SMALLMONEY) }
462 : /* BINARYBIND 15 */ , { NULL, 0 }
463 : /* BITBIND 16 */ , { &null_BIT, sizeof(null_BIT) }
464 : /* NUMERICBIND 17 */ , { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
465 : /* DECIMALBIND 18 */ , { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
466 : /* SRCNUMERICBIND 19 */ , { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
467 : /* SRCDECIMALBIND 20 */ , { (BYTE*) &null_NUMERIC, sizeof(null_NUMERIC) }
468 : /* DATEBIND 21 */ , { (BYTE*) &null_INT, sizeof(null_INT) }
469 : /* TIMEBIND 22 */ , { (BYTE*) &null_INT, sizeof(null_INT) }
470 : /* BIGDATETIMEBIND 23 */ , { (BYTE*) &null_BIGINT, sizeof(null_BIGINT) }
471 : /* BIGTIMEBIND 24 */ , { (BYTE*) &null_BIGINT, sizeof(null_BIGINT) }
472 : /* 25 */ , { NULL, 0 }
473 : /* 26 */ , { NULL, 0 }
474 : /* 27 */ , { NULL, 0 }
475 : /* 28 */ , { NULL, 0 }
476 : /* 29 */ , { NULL, 0 }
477 : /* BIGINTBIND 30 */ , { (BYTE*) &null_BIGINT, sizeof(null_BIGINT) }
478 : /* DATETIME2BIND 31 */ , { (BYTE*) &null_DATETIMEALL, sizeof(null_DATETIMEALL) }
479 : /* MAXBINDTYPES 32 */
480 : };
481 :
482 : static int
483 122 : dbbindtype(int datatype)
484 : {
485 122 : switch (datatype) {
486 : case SYBIMAGE:
487 : case SYBVARBINARY:
488 : case SYBBINARY: return BINARYBIND;
489 :
490 0 : case SYBBIT: return BITBIND;
491 :
492 22 : case SYBLONGCHAR:
493 : case SYBTEXT:
494 : case SYBVARCHAR:
495 22 : case SYBCHAR: return NTBSTRINGBIND;
496 :
497 0 : case SYBDATETIME: return DATETIMEBIND;
498 0 : case SYBDATETIME4: return SMALLDATETIMEBIND;
499 :
500 0 : case SYBDATE: return DATEBIND;
501 0 : case SYBTIME: return TIMEBIND;
502 :
503 0 : case SYB5BIGDATETIME: return BIGDATETIMEBIND;
504 0 : case SYB5BIGTIME: return BIGTIMEBIND;
505 :
506 0 : case SYBDECIMAL: return DECIMALBIND;
507 0 : case SYBNUMERIC: return NUMERICBIND;
508 :
509 0 : case SYBFLT8: return FLT8BIND;
510 0 : case SYBREAL: return REALBIND;
511 :
512 0 : case SYBINT1: return TINYBIND;
513 0 : case SYBINT2: return SMALLBIND;
514 0 : case SYBINT4: return INTBIND;
515 0 : case SYBINT8: return BIGINTBIND;
516 :
517 0 : case SYBMONEY: return MONEYBIND;
518 0 : case SYBMONEY4: return SMALLMONEYBIND;
519 :
520 0 : case SYBMSDATE:
521 : case SYBMSTIME:
522 : case SYBMSDATETIME2:
523 : case SYBMSDATETIMEOFFSET:
524 0 : return DATETIME2BIND;
525 :
526 : default:
527 0 : assert(0 == "no such datatype");
528 : }
529 :
530 : return 0;
531 : }
532 :
533 : /** \internal
534 : * dbbind() says: "Note that if varlen is 0, no padding takes place"
535 : * dbgetnull() will not pad varaddr unless varlen is positive.
536 : * Vartype Program Type Padding Terminator
537 : * ------------------- -------------- -------------- ----------
538 : * CHARBIND DBCHAR blanks none
539 : * STRINGBIND DBCHAR blanks \0
540 : * NTBSTRINGBIND DBCHAR none \0
541 : * VARYCHARBIND DBVARYCHAR none none
542 : * BOUNDARYBIND DBCHAR none \0
543 : * SENSITIVITYBIND DBCHAR none \0
544 : */
545 : RETCODE
546 420 : dbgetnull(DBPROCESS *dbproc, int bindtype, int varlen, BYTE* varaddr)
547 : {
548 420 : NULLREP *pnullrep = default_null_representations + bindtype;
549 :
550 420 : tdsdump_log(TDS_DBG_FUNC, "dbgetnull(%p, %d, %d, %p)\n", dbproc, bindtype, varlen, varaddr);
551 :
552 420 : CHECK_PARAMETER(varaddr, SYBENULL, FAIL);
553 420 : CHECK_PARAMETER(0 <= bindtype && bindtype < MAXBINDTYPES, SYBEBTYP, FAIL);
554 :
555 : /* dbproc can be NULL */
556 420 : if (NULL != dbproc) {
557 320 : assert(dbproc->nullreps);
558 320 : pnullrep = dbproc->nullreps + bindtype;
559 : }
560 :
561 : /*
562 : * Fixed types: ignore varlen
563 : * Other types: ignore varlen if <= 0, else varlen must be >= pnullrep->len.
564 : */
565 : switch (bindtype) {
566 10 : case DATETIMEBIND:
567 : case DATETIME2BIND:
568 : case DECIMALBIND:
569 : case SRCDECIMALBIND:
570 : case FLT8BIND:
571 : case INTBIND:
572 : case MONEYBIND:
573 : case NUMERICBIND:
574 : case SRCNUMERICBIND:
575 : case REALBIND:
576 : case SMALLBIND:
577 : case SMALLDATETIMEBIND:
578 : case SMALLMONEYBIND:
579 : case TINYBIND:
580 : case BIGINTBIND:
581 : case BITBIND:
582 : case TIMEBIND:
583 : case DATEBIND:
584 : case BIGDATETIMEBIND:
585 : case BIGTIMEBIND:
586 10 : memcpy(varaddr, pnullrep->bindval, pnullrep->len);
587 10 : return SUCCEED;
588 410 : case CHARBIND:
589 : case STRINGBIND:
590 : case NTBSTRINGBIND:
591 : case BINARYBIND:
592 : case VARYCHARBIND:
593 : case VARYBINBIND:
594 410 : if (pnullrep->bindval && (varlen <= 0 || (size_t)varlen >= pnullrep->len)) {
595 232 : memcpy(varaddr, pnullrep->bindval, pnullrep->len);
596 : }
597 : break;
598 0 : default:
599 0 : dbperror(dbproc, SYBEBTYP, 0);
600 0 : return FAIL;
601 : }
602 :
603 : /*
604 : * For variable-length types, nonpositive varlen indicates
605 : * buffer is "big enough" but also not to pad.
606 : * Apply terminator (if applicable) and go home.
607 : */
608 410 : if (varlen <= 0) {
609 258 : varlen = pnullrep->len;
610 258 : switch (bindtype) {
611 188 : case STRINGBIND:
612 : case NTBSTRINGBIND:
613 188 : ++varlen;
614 188 : break;
615 : #if 0
616 : case BOUNDARYBIND:
617 : case SENSITIVITYBIND:
618 : #endif
619 : }
620 : }
621 :
622 410 : if (varlen < (long)pnullrep->len) {
623 0 : tdsdump_log(TDS_DBG_FUNC, "dbgetnull: error: not setting varaddr(%p) because %d < %lu\n",
624 : varaddr, varlen, (unsigned long int) pnullrep->len);
625 : return FAIL;
626 : }
627 :
628 410 : tdsdump_log(TDS_DBG_FUNC, "varaddr(%p) varlen %d < %lu?\n",
629 : varaddr, varlen, (unsigned long int) pnullrep->len);
630 :
631 410 : assert(varlen >= 0);
632 :
633 : /*
634 : * CHARBIND Empty string (padded with blanks)
635 : * STRINGBIND Empty string (padded with blanks, null-terminated)
636 : * NTBSTRINGBIND Empty string (unpadded, null-terminated)
637 : * BINARYBIND Empty array (padded with zeros)
638 : */
639 410 : varaddr += pnullrep->len;
640 410 : varlen -= (int)pnullrep->len;
641 410 : if (varlen > 0) {
642 326 : switch (bindtype) {
643 48 : case CHARBIND:
644 48 : memset(varaddr, ' ', varlen);
645 48 : break;
646 40 : case STRINGBIND:
647 40 : memset(varaddr, ' ', varlen);
648 40 : varaddr[varlen-1] = '\0';
649 40 : break;
650 148 : case NTBSTRINGBIND:
651 148 : varaddr[0] = '\0';
652 148 : break;
653 90 : case BINARYBIND:
654 90 : memset(varaddr, 0, varlen);
655 90 : break;
656 : case VARYCHARBIND:
657 : case VARYBINBIND:
658 : break;
659 : default:
660 0 : assert(!"unknown bindtype");
661 : }
662 : }
663 : return SUCCEED;
664 : }
665 :
666 : /**
667 : * \ingroup dblib_core
668 : * \brief Initialize db-lib.
669 : *
670 : * \remarks Call this function before trying to use db-lib in any way.
671 : * Allocates various internal structures and reads \c locales.conf (if any) to determine the default
672 : * date format.
673 : * \retval SUCCEED normal.
674 : * \retval FAIL cannot allocate an array of \c TDS_MAX_CONN \c TDSSOCKET pointers.
675 : */
676 : RETCODE
677 502 : dbinit(void)
678 : {
679 502 : _dblib_err_handler = default_err_handler;
680 :
681 502 : tds_mutex_lock(&dblib_mutex);
682 :
683 502 : tdsdump_log(TDS_DBG_FUNC, "dbinit(void)\n");
684 :
685 502 : if (++g_dblib_ctx.ref_count != 1) {
686 0 : tds_mutex_unlock(&dblib_mutex);
687 0 : return SUCCEED;
688 : }
689 :
690 502 : if (dblib_get_tds_ctx() == NULL) {
691 0 : tdsdump_log(TDS_DBG_FUNC, "dbinit: out of memory\n");
692 0 : tds_mutex_unlock(&dblib_mutex);
693 0 : return FAIL;
694 : }
695 :
696 : /*
697 : * DBLIBCONTEXT stores a list of current connections so they may be closed with dbexit()
698 : */
699 :
700 502 : g_dblib_ctx.connection_list = tds_new0(TDSSOCKET *, TDS_MAX_CONN);
701 502 : if (g_dblib_ctx.connection_list == NULL) {
702 0 : tdsdump_log(TDS_DBG_FUNC, "dbinit: out of memory\n");
703 0 : dblib_release_tds_ctx(1);
704 0 : tds_mutex_unlock(&dblib_mutex);
705 0 : return FAIL;
706 : }
707 502 : g_dblib_ctx.connection_list_size = TDS_MAX_CONN;
708 502 : g_dblib_ctx.connection_list_size_represented = TDS_MAX_CONN;
709 :
710 502 : g_dblib_ctx.login_timeout = -1;
711 502 : g_dblib_ctx.query_timeout = -1;
712 :
713 502 : tds_mutex_unlock(&dblib_mutex);
714 :
715 502 : return SUCCEED;
716 : }
717 :
718 : /**
719 : * \ingroup dblib_core
720 : * \brief Allocate a \c LOGINREC structure.
721 : *
722 : * \remarks A \c LOGINREC structure is passed to \c dbopen() to create a connection to the database.
723 : * Does not communicate to the server; interacts strictly with library.
724 : * \retval NULL the \c LOGINREC cannot be allocated.
725 : * \retval LOGINREC* to valid memory, otherwise.
726 : */
727 : LOGINREC *
728 832 : dblogin(void)
729 : {
730 : LOGINREC *loginrec;
731 :
732 832 : tdsdump_log(TDS_DBG_FUNC, "dblogin(void)\n");
733 :
734 832 : if ((loginrec = tds_new0(LOGINREC, 1)) == NULL) {
735 0 : dbperror(NULL, SYBEMEM, errno);
736 0 : return NULL;
737 : }
738 832 : if ((loginrec->tds_login = tds_alloc_login(true)) == NULL) {
739 0 : dbperror(NULL, SYBEMEM, errno);
740 0 : free(loginrec);
741 0 : return NULL;
742 : }
743 :
744 : /* set default values for loginrec */
745 832 : if (!tds_set_library(loginrec->tds_login, "DB-Library")) {
746 0 : dbperror(NULL, SYBEMEM, errno);
747 0 : tds_free_login(loginrec->tds_login);
748 0 : free(loginrec);
749 0 : return NULL;
750 : }
751 :
752 : return loginrec;
753 : }
754 :
755 : /**
756 : * \ingroup dblib_core
757 : * \brief free the \c LOGINREC
758 : *
759 : */
760 : void
761 802 : dbloginfree(LOGINREC * login)
762 : {
763 802 : tdsdump_log(TDS_DBG_FUNC, "dbloginfree(%p)\n", login);
764 :
765 802 : if (login) {
766 802 : tds_free_login(login->tds_login);
767 802 : free(login);
768 : }
769 802 : }
770 :
771 : /** \internal
772 : * \ingroup dblib_internal
773 : * \brief Set the value of a string in a \c LOGINREC structure.
774 : *
775 : * Called by various macros to populate \a login.
776 : * \param login the \c LOGINREC* to modify.
777 : * \param value the value to set it to.
778 : * \param which the field to set.
779 : * \retval SUCCEED the value was set.
780 : * \retval FAIL \c DBSETHID or other invalid \a which was tried.
781 : */
782 : RETCODE
783 2836 : dbsetlname(LOGINREC * login, const char *value, int which)
784 : {
785 : bool copy_ret;
786 2836 : const char *value_nonull = value ? value : "";
787 :
788 2836 : tdsdump_log(TDS_DBG_FUNC, "dbsetlname(%p, %s, %d)\n", login, value, which);
789 :
790 2836 : if (login == NULL) {
791 0 : dbperror(NULL, SYBEASNL, 0);
792 0 : return FAIL;
793 : }
794 :
795 2836 : if (TDS_MAX_LOGIN_STR_SZ < strlen(value_nonull)) {
796 0 : dbperror(NULL, SYBENTLL, 0);
797 0 : return FAIL;
798 : }
799 :
800 2836 : switch (which) {
801 330 : case DBSETHOST:
802 330 : copy_ret = tds_set_host(login->tds_login, value_nonull);
803 330 : break;
804 822 : case DBSETUSER:
805 822 : copy_ret = tds_set_user(login->tds_login, value_nonull);
806 822 : break;
807 822 : case DBSETPWD:
808 822 : copy_ret = tds_set_passwd(login->tds_login, value_nonull);
809 822 : break;
810 822 : case DBSETAPP:
811 822 : copy_ret = tds_set_app(login->tds_login, value_nonull);
812 822 : break;
813 10 : case DBSETCHARSET:
814 : /* TODO NULL == no conversion desired */
815 10 : copy_ret = tds_set_client_charset(login->tds_login, value_nonull);
816 10 : break;
817 0 : case DBSETNATLANG:
818 0 : copy_ret = tds_set_language(login->tds_login, value_nonull);
819 0 : break;
820 30 : case DBSETDBNAME:
821 30 : copy_ret = !!tds_dstr_copy(&login->tds_login->database, value_nonull);
822 30 : break;
823 0 : case DBSETSERVERPRINCIPAL:
824 0 : copy_ret = !!tds_dstr_copy(&login->tds_login->server_spn, value_nonull);
825 0 : break;
826 0 : case DBSETENCRYPTION:
827 0 : copy_ret = tds_parse_conf_section(TDS_STR_ENCRYPTION, value_nonull, login->tds_login);
828 0 : break;
829 0 : default:
830 0 : dbperror(NULL, SYBEASUL, 0); /* Attempt to set unknown LOGINREC field */
831 0 : return FAIL;
832 : break;
833 : }
834 :
835 2836 : if (!copy_ret)
836 : return FAIL;
837 2836 : return SUCCEED;
838 : }
839 :
840 : /** \internal
841 : * \ingroup dblib_internal
842 : * \brief Set an integer value in a \c LOGINREC structure.
843 : *
844 : * Called by various macros to populate \a login.
845 : * \param login the \c LOGINREC* to modify.
846 : * \param value the value to set it to.
847 : * \param which the field to set.
848 : * \retval SUCCEED the value was set.
849 : * \retval FAIL anything other than \c DBSETPACKET was passed for \a which.
850 : */
851 : RETCODE
852 10 : dbsetllong(LOGINREC * login, long value, int which)
853 : {
854 10 : tdsdump_log(TDS_DBG_FUNC, "dbsetllong(%p, %ld, %d)\n", login, value, which);
855 :
856 10 : if( login == NULL ) {
857 0 : dbperror(NULL, SYBEASNL, 0);
858 0 : return FAIL;
859 : }
860 :
861 10 : switch (which) {
862 10 : case DBSETPACKET:
863 10 : if (0 <= value && value <= 999999) {
864 0 : tds_set_packet(login->tds_login, (int) value);
865 0 : return SUCCEED;
866 : }
867 10 : dbperror(0, SYBEBADPK, 0, (int) value, (int) login->tds_login->block_size);
868 10 : return FAIL;
869 : break;
870 0 : default:
871 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetllong() which = %d\n", which);
872 : return FAIL;
873 : break;
874 : }
875 : }
876 :
877 : /** \internal
878 : * \ingroup dblib_internal
879 : * \brief Set an integer value in a \c LOGINREC structure.
880 : *
881 : * Called by various macros to populate \a login.
882 : * \param login the \c LOGINREC* to modify.
883 : * \param value the value to set it to.
884 : * \param which the field to set.
885 : * \retval SUCCEED the value was set.
886 : * \retval FAIL if invalid field in \a which or invalid \a value.
887 : */
888 : RETCODE
889 0 : dbsetlshort(LOGINREC * login, int value, int which)
890 : {
891 0 : tdsdump_log(TDS_DBG_FUNC, "dbsetlshort(%p, %d, %d)\n", login, value, which);
892 :
893 0 : if( login == NULL ) {
894 0 : dbperror(NULL, SYBEASNL, 0);
895 0 : return FAIL;
896 : }
897 :
898 0 : switch (which) {
899 0 : case DBSETPORT:
900 0 : tds_set_port(login->tds_login, value);
901 0 : return SUCCEED;
902 : /* case DBSETHIER: */
903 0 : default:
904 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetlshort() which = %d\n", which);
905 : return FAIL;
906 : break;
907 : }
908 : }
909 :
910 : /** \internal
911 : * \ingroup dblib_internal
912 : * \brief Set a boolean value in a \c LOGINREC structure.
913 : *
914 : * Called by various macros to populate \a login.
915 : * \param login the \c LOGINREC* to modify.
916 : * \param value the value to set it to.
917 : * \param which the field to set.
918 : * \remark Only DBSETBCP is implemented.
919 : * \retval SUCCEED the value was set.
920 : * \retval FAIL invalid value passed for \a which.
921 : * \todo DBSETNOSHORT, DBSETENCRYPT, DBSETLABELED
922 : */
923 : RETCODE
924 50 : dbsetlbool(LOGINREC * login, int value, int which)
925 : {
926 : bool b_value;
927 :
928 50 : tdsdump_log(TDS_DBG_FUNC, "dbsetlbool(%p, %d, %d)\n", login, value, which);
929 :
930 50 : if (login == NULL) {
931 0 : dbperror(NULL, SYBEASNL, 0);
932 0 : return FAIL;
933 : }
934 :
935 50 : b_value = (value != 0);
936 :
937 50 : switch (which) {
938 50 : case DBSETBCP:
939 50 : tds_set_bulk(login->tds_login, b_value);
940 50 : return SUCCEED;
941 0 : case DBSETUTF16:
942 0 : login->tds_login->use_utf16 = b_value;
943 0 : return SUCCEED;
944 0 : case DBSETNTLMV2:
945 0 : login->tds_login->use_ntlmv2 = b_value;
946 0 : login->tds_login->use_ntlmv2_specified = 1;
947 0 : return SUCCEED;
948 0 : case DBSETREADONLY:
949 0 : login->tds_login->readonly_intent = b_value;
950 0 : return SUCCEED;
951 0 : case DBSETNETWORKAUTH:
952 0 : login->network_auth = b_value;
953 0 : return SUCCEED;
954 0 : case DBSETMUTUALAUTH:
955 0 : login->tds_login->mutual_authentication = b_value;
956 0 : return SUCCEED;
957 0 : case DBSETDELEGATION:
958 0 : login->tds_login->gssapi_use_delegation = b_value;
959 0 : return SUCCEED;
960 0 : case DBSETENCRYPT:
961 : case DBSETLABELED:
962 : default:
963 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetlbool() which = %d\n", which);
964 : return FAIL;
965 : break;
966 : }
967 : }
968 :
969 : /**
970 : * \ingroup dblib_core
971 : * \brief Set TDS version for future connections
972 : *
973 : */
974 : RETCODE
975 0 : dbsetlversion(LOGINREC * login, BYTE version)
976 : {
977 0 : tdsdump_log(TDS_DBG_FUNC, "dbsetlversion(%p, %x)\n", login, version);
978 :
979 0 : if( login == NULL ) {
980 0 : dbperror(NULL, SYBEASNL, 0);
981 0 : return FAIL;
982 : }
983 :
984 0 : assert(login->tds_login != NULL);
985 :
986 0 : switch (version) {
987 0 : case DBVERSION_UNKNOWN:
988 0 : tds_set_version(login->tds_login, 0, 0);
989 0 : return SUCCEED;
990 0 : case DBVERSION_42:
991 0 : tds_set_version(login->tds_login, 4, 2);
992 0 : return SUCCEED;
993 0 : case DBVERSION_100:
994 0 : tds_set_version(login->tds_login, 5, 0);
995 0 : return SUCCEED;
996 0 : case DBVERSION_70:
997 0 : tds_set_version(login->tds_login, 7, 0);
998 0 : return SUCCEED;
999 0 : case DBVERSION_71:
1000 0 : tds_set_version(login->tds_login, 7, 1);
1001 0 : return SUCCEED;
1002 0 : case DBVERSION_72:
1003 0 : tds_set_version(login->tds_login, 7, 2);
1004 0 : return SUCCEED;
1005 0 : case DBVERSION_73:
1006 0 : tds_set_version(login->tds_login, 7, 3);
1007 0 : return SUCCEED;
1008 0 : case DBVERSION_74:
1009 0 : tds_set_version(login->tds_login, 7, 4);
1010 0 : return SUCCEED;
1011 : }
1012 :
1013 : return FAIL;
1014 : }
1015 :
1016 : static void
1017 36072 : dbstring_free(DBSTRING ** dbstrp)
1018 : {
1019 : DBSTRING *curr, *next;
1020 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_free(%p)\n", dbstrp); */
1021 :
1022 36072 : if (!dbstrp)
1023 : return;
1024 :
1025 36072 : curr = *dbstrp;
1026 36072 : *dbstrp = NULL;
1027 77178 : for (; curr; ) {
1028 5034 : next = curr->strnext;
1029 5034 : free(curr->strtext);
1030 5034 : free(curr);
1031 5034 : curr = next;
1032 : }
1033 : }
1034 :
1035 : static RETCODE
1036 5214 : dbstring_concat(DBSTRING ** dbstrp, const char *p)
1037 : {
1038 5214 : DBSTRING **strp = dbstrp;
1039 :
1040 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_concat(%p, %s)\n", *dbstrp, p); */
1041 :
1042 10428 : while (*strp != NULL) {
1043 0 : strp = &((*strp)->strnext);
1044 : }
1045 5214 : if ((*strp = tds_new(DBSTRING, 1)) == NULL) {
1046 0 : dbperror(NULL, SYBEMEM, errno);
1047 0 : return FAIL;
1048 : }
1049 5214 : (*strp)->strtotlen = (DBINT)strlen(p);
1050 5214 : if (((*strp)->strtext = tds_new(BYTE, (*strp)->strtotlen)) == NULL) {
1051 0 : TDS_ZERO_FREE(*strp);
1052 0 : dbperror(NULL, SYBEMEM, errno);
1053 0 : return FAIL;
1054 : }
1055 5214 : memcpy((*strp)->strtext, p, (*strp)->strtotlen);
1056 5214 : (*strp)->strnext = NULL;
1057 5214 : return SUCCEED;
1058 : }
1059 :
1060 : static RETCODE
1061 : dbstring_assign(DBSTRING ** dbstrp, const char *p)
1062 : {
1063 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_assign(%p, %s)\n", *dbstrp, p); */
1064 :
1065 5214 : dbstring_free(dbstrp);
1066 5214 : return dbstring_concat(dbstrp, p);
1067 : }
1068 :
1069 : static DBINT
1070 : dbstring_length(DBSTRING * dbstr)
1071 : {
1072 0 : DBINT len = 0;
1073 : DBSTRING *next;
1074 :
1075 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_length(%p)\n", dbstr); */
1076 :
1077 0 : for (next = dbstr; next != NULL; next = next->strnext) {
1078 0 : len += next->strtotlen;
1079 : }
1080 : return len;
1081 : }
1082 :
1083 : static int
1084 : dbstring_getchar(DBSTRING * dbstr, ptrdiff_t i)
1085 : {
1086 :
1087 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_getchar(%p, %d)\n", dbstr, i); */
1088 :
1089 6160 : if (dbstr == NULL) {
1090 : return -1;
1091 : }
1092 4600 : if (i < 0) {
1093 : return -1;
1094 : }
1095 4600 : if (i < dbstr->strtotlen) {
1096 3040 : return dbstr->strtext[i];
1097 : }
1098 1560 : return dbstring_getchar(dbstr->strnext, i - dbstr->strtotlen);
1099 : }
1100 :
1101 : static char *
1102 0 : dbstring_get(DBSTRING * dbstr)
1103 : {
1104 : DBSTRING *next;
1105 : int len;
1106 : char *ret;
1107 : char *cp;
1108 :
1109 : /* tdsdump_log(TDS_DBG_FUNC, "dbstring_get(%p)\n", dbstr); */
1110 :
1111 0 : if (dbstr == NULL) {
1112 : return NULL;
1113 : }
1114 0 : len = dbstring_length(dbstr);
1115 0 : if ((ret = tds_new(char, len + 1)) == NULL) {
1116 0 : dbperror(NULL, SYBEMEM, errno);
1117 0 : return NULL;
1118 : }
1119 : cp = ret;
1120 0 : for (next = dbstr; next != NULL; next = next->strnext) {
1121 0 : memcpy(cp, next->strtext, next->strtotlen);
1122 0 : cp += next->strtotlen;
1123 : }
1124 0 : *cp = '\0';
1125 0 : return ret;
1126 : }
1127 :
1128 : static const char *const opttext[DBNUMOPTIONS] = {
1129 : "parseonly",
1130 : "estimate",
1131 : "showplan",
1132 : "noexec",
1133 : "arithignore",
1134 : "nocount",
1135 : "arithabort",
1136 : "textlimit",
1137 : "browse",
1138 : "offsets",
1139 : "statistics",
1140 : "errlvl",
1141 : "confirm",
1142 : "spid",
1143 : "buffer",
1144 : "noautofree",
1145 : "rowcount",
1146 : "textsize",
1147 : "language",
1148 : "dateformat",
1149 : "prpad",
1150 : "prcolsep",
1151 : "prlinelen",
1152 : "prlinesep",
1153 : "lfconvert",
1154 : "datefirst",
1155 : "chained",
1156 : "fipsflagger",
1157 : "transaction isolation level",
1158 : "auth",
1159 : "identity_insert",
1160 : "no_identity_column",
1161 : "cnv_date2char_short",
1162 : "client cursors",
1163 : "set time",
1164 : "quoted_identifier"
1165 : };
1166 :
1167 : static DBOPTION *
1168 864 : init_dboptions(void)
1169 : {
1170 : DBOPTION *dbopts;
1171 : int i;
1172 :
1173 864 : if ((dbopts = tds_new0(DBOPTION, DBNUMOPTIONS)) == NULL) {
1174 0 : dbperror(NULL, SYBEMEM, errno);
1175 0 : return NULL;
1176 : }
1177 31104 : for (i = 0; i < DBNUMOPTIONS; i++) {
1178 31104 : dbopts[i].text = opttext[i];
1179 31104 : dbopts[i].param = NULL;
1180 31104 : dbopts[i].factive = FALSE;
1181 : }
1182 1728 : dbstring_assign(&(dbopts[DBPRPAD].param), " ");
1183 1728 : dbstring_assign(&(dbopts[DBPRCOLSEP].param), " ");
1184 1728 : dbstring_assign(&(dbopts[DBPRLINELEN].param), "80");
1185 1728 : dbstring_assign(&(dbopts[DBPRLINESEP].param), "\n");
1186 1728 : dbstring_assign(&(dbopts[DBCLIENTCURSORS].param), " ");
1187 1728 : dbstring_assign(&(dbopts[DBSETTIME].param), " ");
1188 864 : return dbopts;
1189 : }
1190 :
1191 : /** \internal
1192 : * \ingroup dblib_internal
1193 : * \brief Form a connection with the server.
1194 : *
1195 : * Called by the \c dbopen() macro, normally. If FreeTDS was configured with \c --enable-msdblib, this
1196 : * function is called by (exported) \c dbopen() function. \c tdsdbopen is so-named to avoid
1197 : * namespace conflicts with other database libraries that use the same function name.
1198 : * \param login \c LOGINREC* carrying the account information.
1199 : * \param server name of the dataserver to connect to.
1200 : * \return valid pointer on successful login.
1201 : * \retval NULL insufficient memory, unable to connect for any reason.
1202 : * \sa dbopen()
1203 : * \todo use \c asprintf() to avoid buffer overflow.
1204 : * \todo separate error messages for \em no-such-server and \em no-such-user.
1205 : */
1206 : DBPROCESS *
1207 864 : tdsdbopen(LOGINREC * login, const char *server, int msdblib)
1208 : {
1209 864 : DBPROCESS *dbproc = NULL;
1210 864 : TDSCONTEXT *tds_ctx = NULL;
1211 : TDSLOGIN *connection;
1212 : int add_connection_res;
1213 :
1214 864 : tds_dir_char *tdsdump = tds_dir_getenv(TDS_DIR("TDSDUMP"));
1215 864 : if (tdsdump && *tdsdump) {
1216 0 : tdsdump_topen(tdsdump);
1217 0 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen(%p, %s, [%s])\n", login, server? server : "0x0", msdblib? "microsoft" : "sybase");
1218 : }
1219 :
1220 : /*
1221 : * Sybase supports the DSQUERY environment variable and falls back to "SYBASE" if server is NULL.
1222 : * Microsoft uses a NULL or "" server to indicate a local server.
1223 : * FIXME: support local server for win32.
1224 : */
1225 864 : if (!server && !msdblib) {
1226 0 : if ((server = getenv("TDSQUERY")) == NULL)
1227 0 : if ((server = getenv("DSQUERY")) == NULL)
1228 0 : server = "SYBASE";
1229 0 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: servername set to %s\n", server);
1230 : }
1231 :
1232 864 : if ((dbproc = tds_new0(DBPROCESS, 1)) == NULL)
1233 : goto memory_error;
1234 864 : dbproc->msdblib = msdblib;
1235 :
1236 864 : dbproc->dbopts = init_dboptions();
1237 864 : if (dbproc->dbopts == NULL)
1238 : goto cleanup;
1239 864 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: dbproc->dbopts = %p\n", dbproc->dbopts);
1240 :
1241 864 : dbproc->dboptcmd = NULL;
1242 864 : dbproc->avail_flag = TRUE;
1243 864 : dbproc->command_state = DBCMDNONE;
1244 :
1245 864 : if (!tds_set_server(login->tds_login, server))
1246 : goto memory_error;
1247 864 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: tds_set_server(%p, \"%s\")\n", login->tds_login, server);
1248 :
1249 864 : tds_mutex_lock(&dblib_mutex);
1250 864 : tds_ctx = dblib_get_tds_ctx();
1251 864 : tds_mutex_unlock(&dblib_mutex);
1252 864 : if (!tds_ctx)
1253 : goto memory_error;
1254 :
1255 864 : dbproc->tds_socket = tds_alloc_socket(tds_ctx, 512);
1256 864 : if (dbproc->tds_socket == NULL)
1257 : goto memory_error;
1258 864 : tds_ctx = NULL;
1259 :
1260 864 : tds_set_parent(dbproc->tds_socket, dbproc);
1261 :
1262 864 : dbproc->tds_socket->env_chg_func = db_env_chg;
1263 864 : dbproc->envchange_rcv = 0;
1264 :
1265 864 : dbproc->dbcurdb[0] = '\0';
1266 864 : dbproc->servcharset[0] = '\0';
1267 :
1268 864 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: About to call tds_read_config_info...\n");
1269 :
1270 864 : tds_mutex_lock(&dblib_mutex);
1271 864 : add_connection_res = dblib_add_connection(&g_dblib_ctx, dbproc->tds_socket);
1272 864 : tds_mutex_unlock(&dblib_mutex);
1273 864 : if (add_connection_res) {
1274 10 : dbperror(dbproc, SYBEDBPS, 0);
1275 10 : dbclose(dbproc);
1276 10 : return NULL;
1277 : }
1278 :
1279 854 : connection = tds_read_config_info(dbproc->tds_socket, login->tds_login, g_dblib_ctx.tds_ctx->locale);
1280 854 : if (!connection) {
1281 0 : dbclose(dbproc);
1282 0 : return NULL;
1283 : }
1284 854 : connection->option_flag2 &= ~TDS_ODBC_ON; /* we're not an ODBC driver */
1285 854 : tds_fix_login(connection); /* initialize from Environment variables */
1286 :
1287 854 : dbproc->chkintr = NULL;
1288 854 : dbproc->hndlintr = NULL;
1289 :
1290 854 : tds_mutex_lock(&dblib_mutex);
1291 :
1292 : /* override connection timeout if dbsetlogintime() was called */
1293 854 : if (g_dblib_ctx.login_timeout > 0) {
1294 20 : connection->connect_timeout = g_dblib_ctx.login_timeout;
1295 : }
1296 :
1297 : /* override query timeout if dbsettime() was called */
1298 854 : if (g_dblib_ctx.query_timeout > 0) {
1299 10 : connection->query_timeout = g_dblib_ctx.query_timeout;
1300 : }
1301 :
1302 854 : tds_mutex_unlock(&dblib_mutex);
1303 :
1304 854 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: Calling tds_connect_and_login(%p, %p)\n",
1305 : dbproc->tds_socket, connection);
1306 :
1307 854 : if (login->network_auth) {
1308 0 : tds_dstr_empty(&connection->user_name);
1309 0 : tds_dstr_empty(&connection->password);
1310 : }
1311 :
1312 854 : if (TDS_FAILED(tds_connect_and_login(dbproc->tds_socket, connection))) {
1313 0 : tdsdump_log(TDS_DBG_ERROR, "tdsdbopen: tds_connect_and_login failed for \"%s\"!\n",
1314 : tds_dstr_cstr(&connection->server_name));
1315 0 : tds_free_login(connection);
1316 0 : dbclose(dbproc);
1317 0 : return NULL;
1318 : }
1319 854 : tds_free_login(connection);
1320 :
1321 854 : dbproc->dbbuf = NULL;
1322 854 : dbproc->dbbufsz = 0;
1323 :
1324 : /* set the DBBUFFER capacity to nil */
1325 854 : buffer_set_capacity(dbproc, 0);
1326 :
1327 854 : memcpy(dbproc->nullreps, default_null_representations, sizeof(default_null_representations));
1328 :
1329 854 : tds_mutex_lock(&dblib_mutex);
1330 :
1331 854 : if (g_dblib_ctx.recftos_filename != NULL) {
1332 0 : char *temp_filename = NULL;
1333 0 : const int len = asprintf(&temp_filename, "%s.%d",
1334 : g_dblib_ctx.recftos_filename, g_dblib_ctx.recftos_filenum);
1335 0 : if (len >= 0) {
1336 0 : dbproc->ftos = fopen(temp_filename, "w");
1337 0 : free(temp_filename);
1338 0 : if (dbproc->ftos != NULL) {
1339 : char timestr[256];
1340 0 : fprintf(dbproc->ftos, "/* dbopen() at %s */\n", _dbprdate(timestr));
1341 0 : fflush(dbproc->ftos);
1342 0 : g_dblib_ctx.recftos_filenum++;
1343 : }
1344 : }
1345 : }
1346 :
1347 854 : tds_mutex_unlock(&dblib_mutex);
1348 :
1349 854 : tdsdump_log(TDS_DBG_FUNC, "tdsdbopen: Returning dbproc = %p\n", dbproc);
1350 :
1351 : return dbproc;
1352 :
1353 0 : memory_error:
1354 0 : dbperror(NULL, SYBEMEM, errno);
1355 :
1356 0 : cleanup:
1357 0 : if (tds_ctx) {
1358 0 : tds_mutex_lock(&dblib_mutex);
1359 0 : dblib_release_tds_ctx(1);
1360 0 : tds_mutex_unlock(&dblib_mutex);
1361 : }
1362 0 : if (dbproc) {
1363 0 : free(dbproc->dbopts);
1364 0 : free(dbproc);
1365 : }
1366 : return NULL;
1367 : }
1368 :
1369 : /**
1370 : * \ingroup dblib_core
1371 : * \brief \c printf-like way to form SQL to send to the server.
1372 : *
1373 : * Forms a command string and writes to the command buffer with dbcmd().
1374 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1375 : * \param fmt <tt> man vasprintf</tt> for details.
1376 : * \retval SUCCEED success.
1377 : * \retval FAIL insufficient memory, or dbcmd() failed.
1378 : * \sa dbcmd(), dbfreebuf(), dbgetchar(), dbopen(), dbstrcpy(), dbstrlen().
1379 : */
1380 : RETCODE
1381 860 : dbfcmd(DBPROCESS * dbproc, const char *fmt, ...)
1382 : {
1383 : va_list ap;
1384 : char *s;
1385 : int len;
1386 : RETCODE ret;
1387 :
1388 860 : tdsdump_log(TDS_DBG_FUNC, "dbfcmd(%p, %s, ...)\n", dbproc, fmt);
1389 860 : CHECK_CONN(FAIL);
1390 860 : CHECK_NULP(fmt, "dbfcmd", 2, FAIL);
1391 :
1392 860 : va_start(ap, fmt);
1393 860 : len = vasprintf(&s, fmt, ap);
1394 860 : va_end(ap);
1395 :
1396 860 : if (len < 0) {
1397 0 : dbperror(dbproc, SYBEMEM, errno);
1398 0 : return FAIL;
1399 : }
1400 :
1401 860 : ret = dbcmd(dbproc, s);
1402 860 : free(s);
1403 :
1404 860 : return ret;
1405 : }
1406 :
1407 : /**
1408 : * \ingroup dblib_core
1409 : * \brief \c Append SQL to the command buffer.
1410 : *
1411 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1412 : * \param cmdstring SQL to append to the command buffer.
1413 : * \retval SUCCEED success.
1414 : * \retval FAIL insufficient memory.
1415 : * \remarks set command state to \c DBCMDPEND unless the command state is DBCMDSENT, in which case
1416 : * it frees the command buffer. This latter may or may not be the Right Thing to do.
1417 : * \sa dbfcmd(), dbfreebuf(), dbgetchar(), dbopen(), dbstrcpy(), dbstrlen().
1418 : */
1419 : RETCODE
1420 25248 : dbcmd(DBPROCESS * dbproc, const char cmdstring[])
1421 : {
1422 : size_t cmd_len, buf_len, newsz;
1423 :
1424 25248 : tdsdump_log(TDS_DBG_FUNC, "dbcmd(%p, %s)\n", dbproc, cmdstring);
1425 25248 : CHECK_CONN(FAIL);
1426 25248 : CHECK_NULP(cmdstring, "dbcmd", 2, FAIL);
1427 :
1428 25248 : dbproc->avail_flag = FALSE;
1429 :
1430 25248 : tdsdump_log(TDS_DBG_FUNC, "dbcmd() bufsz = %d\n", dbproc->dbbufsz);
1431 :
1432 25248 : if (dbproc->command_state == DBCMDSENT) {
1433 19890 : if (!dbproc->noautofree) {
1434 19890 : dbfreebuf(dbproc);
1435 : }
1436 : }
1437 :
1438 25248 : buf_len = (dbproc->dbbufsz == 0) ? 0 : dbproc->dbbufsz - 1;
1439 25248 : cmd_len = strlen(cmdstring);
1440 25248 : newsz = buf_len + cmd_len + 1;
1441 25248 : if (newsz > 0x7fffffffu || !TDS_RESIZE(dbproc->dbbuf, newsz)) {
1442 0 : dbperror(dbproc, SYBEMEM, errno);
1443 0 : return FAIL;
1444 : }
1445 25248 : memcpy(dbproc->dbbuf + buf_len, cmdstring, cmd_len);
1446 25248 : dbproc->dbbuf[newsz - 1] = 0;
1447 25248 : dbproc->dbbufsz = (int) newsz;
1448 :
1449 25248 : dbproc->command_state = DBCMDPEND;
1450 :
1451 25248 : return SUCCEED;
1452 : }
1453 :
1454 : /**
1455 : * \ingroup dblib_core
1456 : * \brief send the SQL command to the server and wait for an answer.
1457 : *
1458 : * Please be patient. This function waits for the server to respond. \c dbsqlexec is equivalent
1459 : * to dbsqlsend() followed by dbsqlok().
1460 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1461 : * \retval SUCCEED query was processed without errors.
1462 : * \retval FAIL was returned by dbsqlsend() or dbsqlok().
1463 : * \sa dbcmd(), dbfcmd(), dbnextrow(), dbresults(), dbretstatus(), dbsettime(), dbsqlok(), dbsqlsend()
1464 : */
1465 : RETCODE
1466 20434 : dbsqlexec(DBPROCESS * dbproc)
1467 : {
1468 20434 : RETCODE rc = FAIL;
1469 :
1470 20434 : tdsdump_log(TDS_DBG_FUNC, "dbsqlexec(%p)\n", dbproc);
1471 20434 : CHECK_CONN(FAIL);
1472 :
1473 20434 : if (SUCCEED == (rc = dbsqlsend(dbproc))) {
1474 20354 : rc = dbsqlok(dbproc);
1475 : }
1476 : return rc;
1477 : }
1478 :
1479 : /**
1480 : * \ingroup dblib_core
1481 : * \brief Change current database.
1482 : *
1483 : * Analagous to the unix command \c cd, dbuse() makes \a name the default database. Waits for an answer
1484 : * from the server.
1485 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1486 : * \param name database to use.
1487 : * \retval SUCCEED query was processed without errors.
1488 : * \retval FAIL query was not processed
1489 : * \sa dbchange(), dbname().
1490 : */
1491 : RETCODE
1492 804 : dbuse(DBPROCESS * dbproc, const char *name)
1493 : {
1494 : RETCODE rc;
1495 : char *query;
1496 :
1497 804 : tdsdump_log(TDS_DBG_FUNC, "dbuse(%p, %s)\n", dbproc, name);
1498 804 : CHECK_CONN(FAIL);
1499 804 : CHECK_NULP(name, "dbuse", 2, FAIL);
1500 :
1501 : /* quote name */
1502 804 : query = tds_new(char, tds_quote_id(dbproc->tds_socket, NULL, name, -1) + 6);
1503 804 : if (!query) {
1504 0 : dbperror(dbproc, SYBEMEM, errno);
1505 0 : return FAIL;
1506 : }
1507 804 : strcpy(query, "use ");
1508 : /* TODO PHP suggest to quote by yourself with []... what should I do ?? quote or not ?? */
1509 804 : if (name[0] == '[' && name[strlen(name)-1] == ']')
1510 0 : strcat(query, name);
1511 : else
1512 804 : tds_quote_id(dbproc->tds_socket, query + 4, name, -1);
1513 :
1514 804 : rc = SUCCEED;
1515 804 : if ((dbcmd(dbproc, query) == FAIL)
1516 804 : || (dbsqlexec(dbproc) == FAIL)
1517 804 : || (dbresults(dbproc) == FAIL)
1518 804 : || (dbcanquery(dbproc) == FAIL))
1519 : rc = FAIL;
1520 804 : free(query);
1521 804 : return rc;
1522 : }
1523 :
1524 : /**
1525 : * \ingroup dblib_core
1526 : * \brief Close a connection to the server and free associated resources.
1527 : *
1528 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1529 : * \sa dbexit(), dbopen().
1530 : */
1531 : void
1532 834 : dbclose(DBPROCESS * dbproc)
1533 : {
1534 : TDSSOCKET *tds;
1535 : int i;
1536 : char timestr[256];
1537 :
1538 834 : tdsdump_log(TDS_DBG_FUNC, "dbclose(%p)\n", dbproc);
1539 834 : CHECK_PARAMETER(dbproc, SYBENULL, );
1540 :
1541 834 : tds = dbproc->tds_socket;
1542 834 : if (tds) {
1543 : /*
1544 : * this MUST be done before socket destruction
1545 : * it is possible that a TDSSOCKET is allocated on same position
1546 : */
1547 456 : tds_mutex_lock(&dblib_mutex);
1548 456 : dblib_del_connection(&g_dblib_ctx, dbproc->tds_socket);
1549 456 : tds_mutex_unlock(&dblib_mutex);
1550 :
1551 456 : tds_close_socket(tds);
1552 456 : tds_free_socket(tds);
1553 :
1554 456 : tds_mutex_lock(&dblib_mutex);
1555 456 : dblib_release_tds_ctx(1);
1556 456 : tds_mutex_unlock(&dblib_mutex);
1557 : }
1558 834 : buffer_free(&(dbproc->row_buf));
1559 :
1560 834 : if (dbproc->ftos != NULL) {
1561 0 : fprintf(dbproc->ftos, "/* dbclose() at %s */\n", _dbprdate(timestr));
1562 0 : fclose(dbproc->ftos);
1563 : }
1564 :
1565 834 : tds_free_bcpinfo(dbproc->bcpinfo);
1566 834 : if (dbproc->hostfileinfo) {
1567 0 : free(dbproc->hostfileinfo->hostfile);
1568 0 : free(dbproc->hostfileinfo->errorfile);
1569 0 : if (dbproc->hostfileinfo->host_columns) {
1570 0 : for (i = 0; i < dbproc->hostfileinfo->host_colcount; i++) {
1571 0 : free(dbproc->hostfileinfo->host_columns[i]->terminator);
1572 0 : free(dbproc->hostfileinfo->host_columns[i]);
1573 : }
1574 0 : free(dbproc->hostfileinfo->host_columns);
1575 : }
1576 : }
1577 :
1578 30024 : for (i = 0; i < DBNUMOPTIONS; i++) {
1579 30024 : dbstring_free(&(dbproc->dbopts[i].param));
1580 : }
1581 834 : free(dbproc->dbopts);
1582 :
1583 834 : dbstring_free(&(dbproc->dboptcmd));
1584 :
1585 27522 : for (i=0; i < MAXBINDTYPES; i++) {
1586 26688 : if (dbproc->nullreps[i].bindval != default_null_representations[i].bindval)
1587 250 : free((BYTE*)dbproc->nullreps[i].bindval);
1588 : }
1589 :
1590 834 : dbfreebuf(dbproc);
1591 834 : free(dbproc);
1592 : }
1593 :
1594 : /**
1595 : * \ingroup dblib_core
1596 : * \brief Close server connections and free all related structures.
1597 : *
1598 : * \sa dbclose(), dbinit(), dbopen().
1599 : * \todo breaks if ctlib/dblib used in same process.
1600 : */
1601 : void
1602 472 : dbexit(void)
1603 : {
1604 : TDSSOCKET *tds;
1605 : DBPROCESS *dbproc;
1606 472 : int i, list_size, count = 1;
1607 :
1608 472 : tdsdump_log(TDS_DBG_FUNC, "dbexit(void)\n");
1609 :
1610 472 : tds_mutex_lock(&dblib_mutex);
1611 :
1612 472 : if (--g_dblib_ctx.ref_count != 0) {
1613 0 : tds_mutex_unlock(&dblib_mutex);
1614 0 : return;
1615 : }
1616 :
1617 472 : list_size = g_dblib_ctx.connection_list_size;
1618 :
1619 1933784 : for (i = 0; i < list_size; i++) {
1620 1933312 : tds = g_dblib_ctx.connection_list[i];
1621 1933312 : g_dblib_ctx.connection_list[i] = NULL;
1622 1933312 : if (tds) {
1623 378 : ++count;
1624 378 : dbproc = (DBPROCESS *) tds_get_parent(tds);
1625 378 : tds_close_socket(tds);
1626 378 : tds_free_socket(tds);
1627 378 : if (dbproc) {
1628 : /* avoid locking in dbclose */
1629 378 : dbproc->tds_socket = NULL;
1630 378 : dbclose(dbproc);
1631 : }
1632 : }
1633 : }
1634 472 : if (g_dblib_ctx.connection_list) {
1635 472 : TDS_ZERO_FREE(g_dblib_ctx.connection_list);
1636 472 : g_dblib_ctx.connection_list_size = 0;
1637 472 : g_dblib_ctx.connection_list_size_represented = 0;
1638 : }
1639 :
1640 472 : dblib_release_tds_ctx(count);
1641 :
1642 472 : tds_mutex_unlock(&dblib_mutex);
1643 : }
1644 :
1645 : static const char *
1646 : prdbresults_state(int retcode)
1647 : {
1648 0 : switch(retcode) {
1649 : case _DB_RES_INIT: return "_DB_RES_INIT";
1650 0 : case _DB_RES_RESULTSET_EMPTY: return "_DB_RES_RESULTSET_EMPTY";
1651 0 : case _DB_RES_RESULTSET_ROWS: return "_DB_RES_RESULTSET_ROWS";
1652 0 : case _DB_RES_NEXT_RESULT: return "_DB_RES_NEXT_RESULT";
1653 0 : case _DB_RES_NO_MORE_RESULTS: return "_DB_RES_NO_MORE_RESULTS";
1654 0 : case _DB_RES_SUCCEED: return "_DB_RES_SUCCEED";
1655 : default: break;
1656 : }
1657 : return "??";
1658 : }
1659 :
1660 : static const char *
1661 : prdbretcode(RETCODE retcode)
1662 : {
1663 0 : switch(retcode) {
1664 : case REG_ROW: return "REG_ROW/MORE_ROWS";
1665 0 : case NO_MORE_ROWS: return "NO_MORE_ROWS";
1666 0 : case BUF_FULL: return "BUF_FULL";
1667 0 : case NO_MORE_RESULTS: return "NO_MORE_RESULTS";
1668 0 : case SUCCEED: return "SUCCEED";
1669 0 : case FAIL: return "FAIL";
1670 : default: break;
1671 : }
1672 : return "??";
1673 : }
1674 :
1675 : static const char *
1676 : prretcode(int retcode)
1677 : {
1678 0 : switch(retcode) {
1679 : case TDS_SUCCESS: return "TDS_SUCCESS";
1680 0 : case TDS_FAIL: return "TDS_FAIL";
1681 0 : case TDS_NO_MORE_RESULTS: return "TDS_NO_MORE_RESULTS";
1682 0 : case TDS_CANCELLED: return "TDS_CANCELLED";
1683 : default: break;
1684 : }
1685 : return "??";
1686 : }
1687 :
1688 : static const char *
1689 0 : prresult_type(int result_type)
1690 : {
1691 0 : switch(result_type) {
1692 : case TDS_ROW_RESULT: return "TDS_ROW_RESULT";
1693 0 : case TDS_PARAM_RESULT: return "TDS_PARAM_RESULT";
1694 0 : case TDS_STATUS_RESULT: return "TDS_STATUS_RESULT";
1695 0 : case TDS_MSG_RESULT: return "TDS_MSG_RESULT";
1696 0 : case TDS_COMPUTE_RESULT: return "TDS_COMPUTE_RESULT";
1697 0 : case TDS_CMD_DONE: return "TDS_CMD_DONE";
1698 0 : case TDS_CMD_SUCCEED: return "TDS_CMD_SUCCEED";
1699 0 : case TDS_CMD_FAIL: return "TDS_CMD_FAIL";
1700 0 : case TDS_ROWFMT_RESULT: return "TDS_ROWFMT_RESULT";
1701 0 : case TDS_COMPUTEFMT_RESULT: return "TDS_COMPUTEFMT_RESULT";
1702 0 : case TDS_DESCRIBE_RESULT: return "TDS_DESCRIBE_RESULT";
1703 0 : case TDS_DONE_RESULT: return "TDS_DONE_RESULT";
1704 0 : case TDS_DONEPROC_RESULT: return "TDS_DONEPROC_RESULT";
1705 0 : case TDS_DONEINPROC_RESULT: return "TDS_DONEINPROC_RESULT";
1706 0 : case TDS_OTHERS_RESULT: return "TDS_OTHERS_RESULT";
1707 : default: break;
1708 : }
1709 0 : return "??";
1710 : }
1711 :
1712 : /**
1713 : * \ingroup dblib_core
1714 : * \brief Set up query results.
1715 : *
1716 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1717 : * \retval SUCCEED Some results are available.
1718 : * \retval FAIL query was not processed successfully by the server
1719 : * \retval NO_MORE_RESULTS query produced no results.
1720 : *
1721 : * \remarks Call dbresults() after calling dbsqlexec() or dbsqlok(), or dbrpcsend() returns SUCCEED. Unless
1722 : * one of them fails, dbresults will return either SUCCEED or NO_MORE_RESULTS.
1723 : *
1724 : * The meaning of \em results is very specific and not very intuitive. Results are created by either
1725 : * - a SELECT statement
1726 : * - a stored procedure
1727 : *
1728 : * When dbresults returns SUCCEED, therefore, it indicates the server processed the query successfully and
1729 : * that one or more of these is present:
1730 : * - metadata -- dbnumcols() returns 1 or more
1731 : * - data -- dbnextrow() returns SUCCEED
1732 : * - return status -- dbhasretstat() returns TRUE
1733 : * - output parameters -- dbnumrets() returns 1 or more
1734 : *
1735 : * If none of the above are present, dbresults() returns NO_MORE_RESULTS.
1736 : *
1737 : * SUCCEED does not imply that DBROWS() will return TRUE or even that dbnumcols() will return nonzero.
1738 : * A general algorithm for reading results will call dbresults() until it return NO_MORE_RESULTS (or FAIL).
1739 : * An application should check for all the above kinds of results within the dbresults() loop.
1740 : *
1741 : * \sa dbsqlexec(), dbsqlok(), dbrpcsend(), dbcancel(), DBROWS(), dbnextrow(), dbnumcols(), dbhasretstat(), dbretstatus(), dbnumrets()
1742 : */
1743 : RETCODE
1744 29835 : dbresults(DBPROCESS * dbproc)
1745 : {
1746 29835 : RETCODE erc = _dbresults(dbproc);
1747 :
1748 29835 : tdsdump_log(TDS_DBG_FUNC, "dbresults returning %d (%s)\n", erc, prdbretcode(erc));
1749 29835 : return erc;
1750 : }
1751 :
1752 : static RETCODE
1753 29835 : _dbresults(DBPROCESS * dbproc)
1754 : {
1755 : TDSSOCKET *tds;
1756 29835 : int result_type = 0, done_flags;
1757 :
1758 29835 : tdsdump_log(TDS_DBG_FUNC, "dbresults(%p)\n", dbproc);
1759 29835 : CHECK_CONN(FAIL);
1760 :
1761 29835 : tds = dbproc->tds_socket;
1762 :
1763 29835 : tdsdump_log(TDS_DBG_FUNC, "dbresults: dbresults_state is %d (%s)\n",
1764 : dbproc->dbresults_state, prdbresults_state(dbproc->dbresults_state));
1765 29835 : switch ( dbproc->dbresults_state ) {
1766 8170 : case _DB_RES_SUCCEED:
1767 8170 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
1768 8170 : return SUCCEED;
1769 : break;
1770 0 : case _DB_RES_RESULTSET_ROWS:
1771 0 : dbperror(dbproc, SYBERPND, 0); /* dbresults called while rows outstanding.... */
1772 0 : return FAIL;
1773 : break;
1774 : case _DB_RES_NO_MORE_RESULTS:
1775 : return NO_MORE_RESULTS;
1776 : break;
1777 : default:
1778 : break;
1779 : }
1780 :
1781 : for (;;) {
1782 31271 : TDSRET retcode = tds_process_tokens(tds, &result_type, &done_flags, TDS_TOKEN_RESULTS);
1783 :
1784 31271 : tdsdump_log(TDS_DBG_FUNC, "dbresults() tds_process_tokens returned %d (%s),\n\t\t\tresult_type %d (%s)\n",
1785 : retcode, prretcode(retcode), result_type, prresult_type(result_type));
1786 :
1787 31271 : switch (retcode) {
1788 :
1789 22863 : case TDS_SUCCESS:
1790 :
1791 22863 : switch (result_type) {
1792 :
1793 298 : case TDS_ROWFMT_RESULT:
1794 298 : buffer_free(&dbproc->row_buf);
1795 298 : buffer_alloc(dbproc);
1796 298 : dbproc->dbresults_state = _DB_RES_RESULTSET_EMPTY;
1797 298 : break;
1798 :
1799 : case TDS_COMPUTEFMT_RESULT:
1800 : break;
1801 :
1802 12080 : case TDS_ROW_RESULT:
1803 : case TDS_COMPUTE_RESULT:
1804 :
1805 12080 : dbproc->dbresults_state = _DB_RES_RESULTSET_ROWS;
1806 12080 : return SUCCEED;
1807 : break;
1808 :
1809 1177 : case TDS_DONE_RESULT:
1810 : case TDS_DONEPROC_RESULT:
1811 1177 : tdsdump_log(TDS_DBG_FUNC, "dbresults(): dbresults_state is %d (%s)\n",
1812 : dbproc->dbresults_state, prdbresults_state(dbproc->dbresults_state));
1813 :
1814 : /* A done token signifies the end of a logical command.
1815 : * There are three possibilities:
1816 : * 1. Simple command with no result set, i.e. update, delete, insert
1817 : * 2. Command with result set but no rows
1818 : * 3. Command with result set and rows
1819 : */
1820 1177 : switch (dbproc->dbresults_state) {
1821 :
1822 807 : case _DB_RES_INIT:
1823 : case _DB_RES_NEXT_RESULT:
1824 807 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
1825 807 : if (done_flags & TDS_DONE_ERROR)
1826 : return FAIL;
1827 791 : if (result_type == TDS_DONE_RESULT) {
1828 685 : tds_free_all_results(tds);
1829 685 : return SUCCEED;
1830 : }
1831 : break;
1832 :
1833 370 : case _DB_RES_RESULTSET_EMPTY:
1834 : case _DB_RES_RESULTSET_ROWS:
1835 370 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
1836 370 : return SUCCEED;
1837 : break;
1838 : default:
1839 0 : assert(0);
1840 : break;
1841 : }
1842 : break;
1843 :
1844 9253 : case TDS_DONEINPROC_RESULT:
1845 : /*
1846 : * Return SUCCEED on a command within a stored procedure
1847 : * only if the command returned a result set.
1848 : */
1849 9253 : switch (dbproc->dbresults_state) {
1850 9241 : case _DB_RES_INIT:
1851 : case _DB_RES_NEXT_RESULT:
1852 9241 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
1853 9241 : break;
1854 12 : case _DB_RES_RESULTSET_EMPTY :
1855 : case _DB_RES_RESULTSET_ROWS :
1856 12 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
1857 12 : return SUCCEED;
1858 : break;
1859 : case _DB_RES_NO_MORE_RESULTS:
1860 : case _DB_RES_SUCCEED:
1861 : break;
1862 : }
1863 : break;
1864 :
1865 : case TDS_STATUS_RESULT:
1866 : case TDS_MSG_RESULT:
1867 : case TDS_DESCRIBE_RESULT:
1868 : case TDS_PARAM_RESULT:
1869 : default:
1870 : break;
1871 : }
1872 :
1873 : break;
1874 :
1875 8408 : case TDS_NO_MORE_RESULTS:
1876 8408 : dbproc->dbresults_state = _DB_RES_NO_MORE_RESULTS;
1877 8408 : return NO_MORE_RESULTS;
1878 : break;
1879 :
1880 0 : default:
1881 0 : assert(TDS_FAILED(retcode));
1882 0 : dbproc->dbresults_state = _DB_RES_INIT;
1883 0 : return FAIL;
1884 : break;
1885 : }
1886 : }
1887 : }
1888 :
1889 :
1890 : /**
1891 : * \ingroup dblib_core
1892 : * \brief Return number of regular columns in a result set.
1893 : *
1894 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1895 : * \sa dbcollen(), dbcolname(), dbnumalts().
1896 : */
1897 : int
1898 4014 : dbnumcols(DBPROCESS * dbproc)
1899 : {
1900 4014 : tdsdump_log(TDS_DBG_FUNC, "dbnumcols(%p)\n", dbproc);
1901 4014 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
1902 :
1903 4014 : if (dbproc && dbproc->tds_socket && dbproc->tds_socket->res_info)
1904 3754 : return dbproc->tds_socket->res_info->num_cols;
1905 : return 0;
1906 : }
1907 :
1908 : /**
1909 : * \ingroup dblib_core
1910 : * \brief Return name of a regular result column.
1911 : *
1912 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1913 : * \param column Nth in the result set, starting with 1.
1914 : * \return pointer to ASCII null-terminated string, the name of the column.
1915 : * \retval NULL \a column is not in range.
1916 : * \sa dbcollen(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols().
1917 : * \bug Relies on ASCII column names, post iconv conversion.
1918 : * Will not work as described for UTF-8 or UCS-2 clients.
1919 : * But maybe it shouldn't.
1920 : */
1921 : char *
1922 2858 : dbcolname(DBPROCESS * dbproc, int column)
1923 : {
1924 : TDSCOLUMN *colinfo;
1925 :
1926 2858 : tdsdump_log(TDS_DBG_FUNC, "dbcolname(%p, %d)\n", dbproc, column);
1927 :
1928 2858 : colinfo = dbcolptr(dbproc, column);
1929 2858 : if (!colinfo)
1930 : return NULL;
1931 :
1932 5716 : return tds_dstr_buf(&colinfo->column_name);
1933 : }
1934 :
1935 : /**
1936 : * \ingroup dblib_core
1937 : * \brief Return name of a computed result column.
1938 : *
1939 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1940 : * \param computeid identifies which one of potientially many compute rows is meant. The first compute
1941 : * clause has \a computeid == 1.
1942 : * \param column Nth in the result set, starting with 1.
1943 : * \return pointer to ASCII null-terminated string, the name of the column.
1944 : * \retval NULL \a column is not in range.
1945 : * \sa dbcollen(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols().
1946 : */
1947 : const char *
1948 0 : dbacolname(DBPROCESS * dbproc, int computeid, int column)
1949 : {
1950 : TDSCOLUMN *colinfo;
1951 :
1952 0 : tdsdump_log(TDS_DBG_FUNC, "dbacolname(%p, %d, %d)\n", dbproc, computeid, column);
1953 :
1954 0 : colinfo = dbacolptr(dbproc, computeid, column, true);
1955 0 : if (!colinfo)
1956 : return NULL;
1957 :
1958 0 : return tds_dstr_cstr(&colinfo->column_name);
1959 : }
1960 :
1961 : /**
1962 : * \ingroup dblib_core
1963 : * \brief Read a row from the row buffer.
1964 : *
1965 : * When row buffering is enabled (DBBUFFER option is on), the client can use dbgetrow() to re-read a row previously fetched
1966 : * with dbnextrow(). The effect is to move the row pointer -- analogous to fseek() -- back to \a row.
1967 : * Calls to dbnextrow() read from \a row + 1 until the buffer is exhausted, at which point it resumes
1968 : * its normal behavior, except that as each row is fetched from the server, it is added to the row
1969 : * buffer (in addition to being returned to the client). When the buffer is filled, dbnextrow() returns
1970 : * \c FAIL until the buffer is at least partially emptied with dbclrbuf().
1971 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1972 : * \param row Nth row to read, starting with 1.
1973 : * \retval REG_ROW returned row is a regular row.
1974 : * \returns computeid when returned row is a compute row.
1975 : * \retval NO_MORE_ROWS no such row in the row buffer. Current row is unchanged.
1976 : * \retval FAIL unsuccessful; row buffer may be full.
1977 : * \sa dbaltbind(), dbbind(), dbclrbuf(), DBCURROW(), DBFIRSTROW(), DBLASTROW(), dbnextrow(), dbsetrow().
1978 : */
1979 : RETCODE
1980 60 : dbgetrow(DBPROCESS * dbproc, DBINT row)
1981 : {
1982 60 : RETCODE result = FAIL;
1983 60 : const int idx = buffer_row2idx(&dbproc->row_buf, row);
1984 :
1985 60 : tdsdump_log(TDS_DBG_FUNC, "dbgetrow(%p, %d)\n", dbproc, row);
1986 60 : CHECK_CONN(FAIL);
1987 :
1988 60 : if (-1 == idx)
1989 : return NO_MORE_ROWS;
1990 :
1991 40 : dbproc->row_buf.current = idx;
1992 40 : buffer_transfer_bound_data(&dbproc->row_buf, TDS_ROW_RESULT, 0, dbproc, idx);
1993 40 : result = REG_ROW;
1994 :
1995 40 : return result;
1996 : }
1997 :
1998 : /**
1999 : * \ingroup dblib_core
2000 : * \brief Define substitution values to be used when binding null values.
2001 : *
2002 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2003 : * \param bindtype type of binding to which the substitute value will apply.
2004 : * \param bindlen size of the substitute value you are supplying, in bytes.
2005 : * Ignored except for CHARBIND and BINARYBIND.
2006 : * \param bindval pointer to a buffer containing the substitute value.
2007 : * \retval SUCCEED query was processed without errors.
2008 : * \retval FAIL query was not processed
2009 : * \sa dbaltbind(), dbbind(), dbconvert(), dbnullbind().
2010 : */
2011 : RETCODE
2012 400 : dbsetnull(DBPROCESS * dbproc, int bindtype, int bindlen, BYTE *bindval)
2013 : {
2014 : BYTE *pval;
2015 :
2016 400 : tdsdump_log(TDS_DBG_FUNC, "dbsetnull(%p, %d, %d, %p)\n", dbproc, bindtype, bindlen, bindval);
2017 :
2018 400 : CHECK_CONN(FAIL);
2019 400 : CHECK_PARAMETER(bindval, SYBENBVP, FAIL);
2020 :
2021 400 : switch (bindtype) {
2022 330 : case DATETIMEBIND:
2023 : case DECIMALBIND:
2024 : case SRCDECIMALBIND:
2025 : case FLT8BIND:
2026 : case INTBIND:
2027 : case MONEYBIND:
2028 : case NUMERICBIND:
2029 : case SRCNUMERICBIND:
2030 : case REALBIND:
2031 : case SMALLBIND:
2032 : case SMALLDATETIMEBIND:
2033 : case SMALLMONEYBIND:
2034 : case TINYBIND:
2035 : case BIGINTBIND:
2036 : case DATEBIND:
2037 : case TIMEBIND:
2038 : case BIGDATETIMEBIND:
2039 : case BIGTIMEBIND:
2040 330 : bindlen = (int)default_null_representations[bindtype].len;
2041 330 : break;
2042 :
2043 70 : case CHARBIND:
2044 : case BINARYBIND:
2045 70 : CHECK_PARAMETER(bindlen >= 0, SYBEBBL, FAIL);
2046 : break;
2047 :
2048 0 : case NTBSTRINGBIND: bindlen = (int)strlen((char *) bindval);
2049 0 : break;
2050 0 : case STRINGBIND: bindlen = (int)strlen((char *) bindval);
2051 0 : break;
2052 0 : case VARYBINBIND: bindlen = ((DBVARYBIN*) bindval)->len;
2053 0 : break;
2054 0 : case VARYCHARBIND: bindlen = ((DBVARYCHAR*) bindval)->len;
2055 0 : break;
2056 :
2057 : #if 0
2058 : case SENSITIVITYBIND:
2059 : case BOUNDARYBIND:
2060 : #endif
2061 0 : default:
2062 0 : dbperror(dbproc, SYBEBTYP, 0);
2063 0 : return FAIL;
2064 : }
2065 :
2066 400 : if ((pval = tds_new(BYTE, bindlen)) == NULL) {
2067 0 : dbperror(dbproc, SYBEMEM, errno);
2068 0 : return FAIL;
2069 : }
2070 :
2071 : /* free any prior allocation */
2072 400 : if (dbproc->nullreps[bindtype].bindval != default_null_representations[bindtype].bindval)
2073 380 : free((BYTE*)dbproc->nullreps[bindtype].bindval);
2074 :
2075 400 : memcpy(pval, bindval, bindlen);
2076 :
2077 400 : dbproc->nullreps[bindtype].bindval = pval;
2078 400 : dbproc->nullreps[bindtype].len = bindlen;
2079 :
2080 400 : tdsdump_dump_buf(TDS_DBG_NETWORK, "null representation set ", pval, bindlen);
2081 : return SUCCEED;
2082 : }
2083 :
2084 : /**
2085 : * \ingroup dblib_core
2086 : * \brief Make a buffered row "current" without fetching it into bound variables.
2087 : *
2088 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2089 : * \retval MORE_ROWS row found
2090 : * \retval NO_MORE_ROWS row not found
2091 : * \retval FAIL \a dbproc is dead or not enabled
2092 : * \sa dbaltbind(), dbbind(), dbcanquery(), dbclrbuf(), dbgetrow(), dbnextrow(), dbprrow().
2093 : */
2094 : STATUS
2095 0 : dbsetrow(DBPROCESS * dbproc, DBINT row)
2096 : {
2097 0 : const int idx = buffer_row2idx(&dbproc->row_buf, row);
2098 :
2099 0 : tdsdump_log(TDS_DBG_FUNC, "dbsetrow(%p, %d)\n", dbproc, row);
2100 0 : CHECK_CONN(FAIL);
2101 :
2102 0 : if (-1 == idx)
2103 : return NO_MORE_ROWS;
2104 :
2105 0 : dbproc->row_buf.current = idx;
2106 :
2107 : /* FIXME: should determine REG_ROW or compute_id; */
2108 0 : return REG_ROW;
2109 : }
2110 :
2111 : /**
2112 : * \ingroup dblib_core
2113 : * \brief Read result row into the row buffer and into any bound host variables.
2114 : *
2115 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2116 : * \retval REG_ROW regular row has been read.
2117 : * \returns computeid when a compute row is read.
2118 : * \retval BUF_FULL reading next row would cause the buffer to be exceeded (and buffering is turned on).
2119 : * No row was read from the server
2120 : * \sa dbaltbind(), dbbind(), dbcanquery(), dbclrbuf(), dbgetrow(), dbprrow(), dbsetrow().
2121 : */
2122 : struct pivot_t;
2123 : STATUS
2124 220548 : dbnextrow(DBPROCESS * dbproc)
2125 : {
2126 : TDSRESULTINFO *resinfo;
2127 : TDSSOCKET *tds;
2128 220548 : STATUS result = FAIL;
2129 : TDS_INT res_type;
2130 : TDS_INT computeid;
2131 : int idx; /* row buffer index. Unless DBUFFER is on, idx will always be 0. */
2132 : struct pivot_t *pivot;
2133 :
2134 220548 : tdsdump_log(TDS_DBG_FUNC, "dbnextrow(%p)\n", dbproc);
2135 220548 : CHECK_CONN(FAIL);
2136 :
2137 220548 : tds = dbproc->tds_socket;
2138 220548 : resinfo = tds->res_info;
2139 :
2140 220548 : tdsdump_log(TDS_DBG_FUNC, "dbnextrow() dbresults_state = %d (%s)\n",
2141 : dbproc->dbresults_state, prdbresults_state(dbproc->dbresults_state));
2142 :
2143 220548 : if (!resinfo || dbproc->dbresults_state != _DB_RES_RESULTSET_ROWS) {
2144 : /* no result set or result set empty (no rows) */
2145 820 : tdsdump_log(TDS_DBG_FUNC, "leaving dbnextrow() returning %d (NO_MORE_ROWS)\n", NO_MORE_ROWS);
2146 820 : return dbproc->row_type = NO_MORE_ROWS;
2147 : }
2148 :
2149 : /*
2150 : * Try to get the dbproc->row_buf.current item from the buffered rows, if any.
2151 : * Else read from the stream, unless the buffer is exhausted.
2152 : * If no rows are read, DBROWTYPE() will report NO_MORE_ROWS.
2153 : */
2154 219728 : dbproc->row_type = NO_MORE_ROWS;
2155 219728 : computeid = REG_ROW;
2156 219728 : if (-1 != (idx = buffer_current_index(dbproc))) {
2157 : /*
2158 : * Cool, the item we want is already there
2159 : */
2160 10 : result = dbproc->row_type = REG_ROW;
2161 10 : res_type = TDS_ROW_RESULT;
2162 :
2163 219718 : } else if (buffer_is_full(&dbproc->row_buf)) {
2164 :
2165 120 : result = BUF_FULL;
2166 120 : res_type = TDS_ROWFMT_RESULT;
2167 :
2168 219598 : } else if ((pivot = dbrows_pivoted(dbproc)) != NULL) {
2169 :
2170 0 : tdsdump_log(TDS_DBG_FUNC, "returning pivoted row\n");
2171 0 : return dbnextrow_pivoted(dbproc, pivot);
2172 :
2173 : } else {
2174 219598 : const int mask = TDS_STOPAT_ROWFMT|TDS_RETURN_DONE|TDS_RETURN_ROW|TDS_RETURN_COMPUTE;
2175 219598 : TDS_INT8 row_count = TDS_NO_COUNT;
2176 219598 : bool rows_set = false;
2177 219598 : buffer_save_row(dbproc);
2178 :
2179 : /* Get the row from the TDS stream. */
2180 718 : again:
2181 220316 : switch (tds_process_tokens(tds, &res_type, NULL, mask)) {
2182 220286 : case TDS_SUCCESS:
2183 220286 : if (res_type == TDS_ROW_RESULT || res_type == TDS_COMPUTE_RESULT) {
2184 207698 : if (res_type == TDS_COMPUTE_RESULT)
2185 32 : computeid = tds->current_results->computeid;
2186 : /* Add the row to the row buffer, whose capacity is always at least 1 */
2187 207698 : resinfo = tds->current_results;
2188 207698 : idx = buffer_add_row(dbproc, resinfo);
2189 207698 : assert(idx != -1);
2190 207698 : result = dbproc->row_type = (res_type == TDS_ROW_RESULT)? REG_ROW : computeid;
2191 : #if 0 /* TODO */
2192 : tds_process_tokens(tds, &res_type, NULL, TDS_TOKEN_TRAILING);
2193 : #endif
2194 207698 : break;
2195 : }
2196 : /* allows to process trailing tokens */
2197 12588 : if (res_type == TDS_DONEINPROC_RESULT) {
2198 718 : if (!rows_set)
2199 462 : row_count = tds->rows_affected;
2200 : rows_set = true;
2201 : goto again;
2202 : }
2203 : /* fall through */
2204 : case TDS_NO_MORE_RESULTS:
2205 11900 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
2206 11900 : result = NO_MORE_ROWS;
2207 11900 : break;
2208 0 : default:
2209 0 : tdsdump_log(TDS_DBG_FUNC, "unexpected: leaving dbnextrow() returning FAIL\n");
2210 : return FAIL;
2211 : break;
2212 : }
2213 219598 : if (rows_set)
2214 462 : tds->rows_affected = row_count;
2215 : }
2216 :
2217 219728 : if (res_type == TDS_ROW_RESULT || res_type == TDS_COMPUTE_RESULT) {
2218 : /*
2219 : * Transfer the data from the row buffer to the bound variables.
2220 : */
2221 207708 : buffer_transfer_bound_data(&dbproc->row_buf, res_type, computeid, dbproc, idx);
2222 : }
2223 :
2224 219728 : if (res_type == TDS_COMPUTE_RESULT) {
2225 32 : tdsdump_log(TDS_DBG_FUNC, "leaving dbnextrow() returning compute_id %d\n", result);
2226 : } else {
2227 219696 : tdsdump_log(TDS_DBG_FUNC, "leaving dbnextrow() returning %d (%s)\n", result, prdbretcode(result));
2228 : }
2229 : return result;
2230 : } /* dbnextrow() */
2231 :
2232 : static TDS_SERVER_TYPE
2233 : dblib_bound_type(int bindtype)
2234 : {
2235 : switch (bindtype) {
2236 : case CHARBIND:
2237 : case STRINGBIND:
2238 : case NTBSTRINGBIND:
2239 : return SYBCHAR;
2240 : break;
2241 : case FLT8BIND:
2242 : return SYBFLT8;
2243 : break;
2244 : case REALBIND:
2245 : return SYBREAL;
2246 : break;
2247 : case INTBIND:
2248 : return SYBINT4;
2249 : break;
2250 : case SMALLBIND:
2251 : return SYBINT2;
2252 : break;
2253 : case TINYBIND:
2254 : return SYBINT1;
2255 : break;
2256 : case BIGINTBIND:
2257 : return SYBINT8;
2258 : break;
2259 : case DATETIMEBIND:
2260 : return SYBDATETIME;
2261 : break;
2262 : case SMALLDATETIMEBIND:
2263 : return SYBDATETIME4;
2264 : break;
2265 : case DATEBIND:
2266 : return SYBDATE;
2267 : break;
2268 : case TIMEBIND:
2269 : return SYBTIME;
2270 : break;
2271 : case BIGDATETIMEBIND:
2272 : return SYB5BIGDATETIME;
2273 : break;
2274 : case BIGTIMEBIND:
2275 : return SYB5BIGTIME;
2276 : break;
2277 : case MONEYBIND:
2278 : return SYBMONEY;
2279 : break;
2280 : case SMALLMONEYBIND:
2281 : return SYBMONEY4;
2282 : break;
2283 : case BINARYBIND:
2284 : return SYBBINARY;
2285 : break;
2286 : case VARYBINBIND:
2287 : return SYBVARBINARY;
2288 : break;
2289 : case VARYCHARBIND:
2290 : return SYBVARCHAR;
2291 : break;
2292 : case BITBIND:
2293 : return SYBBIT;
2294 : break;
2295 : case NUMERICBIND:
2296 : case SRCNUMERICBIND:
2297 : case DECIMALBIND:
2298 : case SRCDECIMALBIND:
2299 : return SYBNUMERIC;
2300 : break;
2301 : case DATETIME2BIND:
2302 : return SYBMSDATETIMEOFFSET;
2303 : break;
2304 : default:
2305 : return TDS_INVALID_TYPE;
2306 : }
2307 : }
2308 :
2309 : /**
2310 : * \ingroup dblib_core
2311 : * \brief Convert one datatype to another.
2312 : *
2313 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2314 : * \param srctype datatype of the data to convert.
2315 : * \param src buffer to convert
2316 : * \param srclen length of \a src
2317 : * \param desttype target datatype
2318 : * \param dest output buffer
2319 : * \param destlen size of \a dest
2320 : * \returns On success, the count of output bytes in \a dest, else -1. On failure, it will call any user-supplied error handler.
2321 : * \remarks Causes of failure:
2322 : * - No such conversion unavailable.
2323 : * - Character data output was truncated, or numerical data overflowed or lost precision.
2324 : * - In converting character data to one of the numeric types, the string could not be interpreted as a number.
2325 : *
2326 : * Conversion functions are handled in the TDS layer.
2327 : *
2328 : * The main reason for this is that \c ct-lib and \c ODBC (and presumably \c DBI) need
2329 : * to be able to do conversions between datatypes. This is possible because
2330 : * the format of complex data (dates, money, numeric, decimal) is defined by
2331 : * its representation on the wire; thus what we call \c DBMONEY is exactly its
2332 : * format on the wire. CLIs that need a different representation (ODBC?)
2333 : * need to convert from this format anyway, so the code would already be in
2334 : * place.
2335 : *
2336 : * Each datatype is also defined by its Server-type so all CLIs should be
2337 : * able to map native types to server types as well.
2338 : *
2339 : * tds_convert() copies from src to dest and returns the output data length,
2340 : * period. All padding and termination is the responsibility of the API library
2341 : * and is done post-conversion. The peculiar rule in dbconvert() is that
2342 : * a \a destlen of -1 and a \a desttype of \c SYBCHAR means the output buffer
2343 : * should be null-terminated.
2344 : *
2345 : * \sa dbaltbind(), dbaltbind_ps(), dbbind(), dbbind_ps(), dbconvert_ps(), dberrhandle(), dbsetnull(), dbsetversion(), dbwillconvert().
2346 : * \todo What happens if client does not reset values?
2347 : * \todo Microsoft and Sybase define this function differently.
2348 : */
2349 : DBINT
2350 2318 : dbconvert_ps(DBPROCESS * dbproc, int db_srctype, const BYTE * src, DBINT srclen,
2351 : int db_desttype, BYTE * dest, DBINT destlen, DBTYPEINFO * typeinfo)
2352 : {
2353 : CONV_RESULT dres;
2354 : DBINT ret;
2355 : int i;
2356 : int len;
2357 : TDS_SERVER_TYPE srctype, desttype;
2358 :
2359 2318 : tdsdump_log(TDS_DBG_FUNC, "dbconvert_ps(%p, %s, %p, %d, %s, %p, %d, %p)\n",
2360 : dbproc, tds_prdatatype(db_srctype), src, srclen,
2361 : tds_prdatatype(db_desttype), dest, destlen, typeinfo);
2362 : /* dbproc and src can be NULLs */
2363 2318 : CHECK_PARAMETER(dest, SYBEACNV, -1);
2364 :
2365 2318 : DBPERROR_RETURN(!is_tds_type_valid(db_srctype), SYBEUDTY);
2366 2318 : srctype = (TDS_SERVER_TYPE) db_srctype;
2367 2318 : DBPERROR_RETURN(!is_tds_type_valid(db_desttype), SYBEUDTY);
2368 2318 : desttype = (TDS_SERVER_TYPE) db_desttype;
2369 :
2370 2318 : if (is_numeric_type(desttype)) {
2371 480 : TDS_NUMERIC *d = &dres.n;
2372 :
2373 480 : if (typeinfo == NULL) {
2374 0 : if (is_numeric_type(srctype)) {
2375 0 : DBNUMERIC *s = (DBNUMERIC *) src;
2376 0 : d->precision = s->precision;
2377 0 : d->scale = s->scale;
2378 : } else {
2379 0 : d->precision = 18;
2380 0 : d->scale = 0;
2381 : }
2382 : } else {
2383 480 : d->precision = typeinfo->precision;
2384 480 : d->scale = typeinfo->scale;
2385 : }
2386 : }
2387 :
2388 2318 : if (0 == destlen)
2389 : return 0;
2390 :
2391 2318 : if (src == NULL || srclen == 0) {
2392 122 : int bind = dbbindtype(desttype);
2393 122 : int size = tds_get_size_by_type(desttype);
2394 :
2395 122 : if (bind == NTBSTRINGBIND) {
2396 22 : if (destlen > 0) {
2397 : size = destlen;
2398 : bind = CHARBIND;
2399 : } else {
2400 14 : size = 1;
2401 14 : bind = NTBSTRINGBIND;
2402 : }
2403 100 : } else if (bind == BINARYBIND) {
2404 100 : if (destlen > 0)
2405 : size = destlen;
2406 : else
2407 10 : size = 0;
2408 : }
2409 :
2410 122 : dbgetnull(dbproc, bind, size, dest);
2411 122 : return size;
2412 : }
2413 :
2414 : /* srclen of -1 means the source data is definitely NULL terminated */
2415 2196 : if (srclen == -1)
2416 480 : srclen = (int)strlen((const char *) src);
2417 :
2418 : /* often times we are asked to convert a data type to itself */
2419 2196 : if (srctype == desttype && !is_numeric_type(desttype)) {
2420 150 : ret = -2; /* to make sure we always set it */
2421 150 : tdsdump_log(TDS_DBG_INFO1, "dbconvert_ps() srctype == desttype\n");
2422 150 : switch (desttype) {
2423 :
2424 10 : case SYBBINARY:
2425 : case SYBVARBINARY:
2426 : case SYBIMAGE:
2427 10 : if (srclen > destlen && destlen >= 0) {
2428 0 : dbperror(dbproc, SYBECOFL, 0);
2429 0 : ret = -1;
2430 : } else {
2431 10 : memcpy(dest, src, srclen);
2432 10 : if (srclen < destlen)
2433 0 : memset(dest + srclen, 0, destlen - srclen);
2434 : ret = srclen;
2435 : }
2436 : break;
2437 :
2438 140 : case SYBCHAR:
2439 : case SYBVARCHAR:
2440 : case SYBTEXT:
2441 : /* srclen of -1 means the source data is definitely NULL terminated */
2442 140 : if (srclen == -1)
2443 0 : srclen = (int)strlen((const char *) src);
2444 :
2445 140 : switch (destlen) {
2446 : case 0: /* nothing to copy */
2447 : ret = 0;
2448 : break;
2449 : case -1: /* rtrim and null terminate */
2450 80 : while (srclen && src[srclen - 1] == ' ') {
2451 20 : --srclen;
2452 : }
2453 : /* fall thru */
2454 : case -2: /* just null terminate */
2455 80 : memcpy(dest, src, srclen);
2456 80 : dest[srclen] = '\0';
2457 80 : ret = srclen;
2458 80 : break;
2459 60 : default:
2460 60 : assert(destlen > 0);
2461 60 : if (destlen < 0 || srclen > destlen) {
2462 20 : dbperror(dbproc, SYBECOFL, 0);
2463 20 : ret = -1;
2464 : } else {
2465 40 : memcpy(dest, src, srclen);
2466 40 : if (srclen < destlen)
2467 20 : memset(dest + srclen, ' ', destlen - srclen);
2468 : ret = srclen;
2469 : }
2470 : break;
2471 : }
2472 : break;
2473 0 : case SYBINT1:
2474 : case SYBINT2:
2475 : case SYBINT4:
2476 : case SYBINT8:
2477 : case SYBFLT8:
2478 : case SYBREAL:
2479 : case SYBBIT:
2480 : case SYBBITN:
2481 : case SYBMONEY:
2482 : case SYBMONEY4:
2483 : case SYBDATETIME:
2484 : case SYBDATETIME4:
2485 : case SYBDATE:
2486 : case SYBTIME:
2487 : case SYB5BIGDATETIME:
2488 : case SYB5BIGTIME:
2489 : case SYBUNIQUE:
2490 0 : ret = tds_get_size_by_type(desttype);
2491 0 : memcpy(dest, src, ret);
2492 0 : break;
2493 :
2494 0 : case SYBMSDATE:
2495 : case SYBMSTIME:
2496 : case SYBMSDATETIME2:
2497 : case SYBMSDATETIMEOFFSET:
2498 0 : ret = sizeof(TDS_DATETIMEALL);
2499 0 : memcpy(dest, src, ret);
2500 : break;
2501 :
2502 : default:
2503 : ret = -1;
2504 : break;
2505 : }
2506 130 : assert(ret > -2);
2507 : return ret;
2508 : }
2509 : /* end srctype == desttype */
2510 :
2511 : /*
2512 : * Character types need no conversion. Just move the data.
2513 : */
2514 2046 : if (is_similar_type(srctype, desttype)) {
2515 662 : if (src && dest && srclen > 0 && destlen >= srclen) {
2516 662 : memcpy(dest, src, srclen);
2517 662 : return srclen;
2518 : }
2519 : }
2520 :
2521 1384 : tdsdump_log(TDS_DBG_INFO1, "dbconvert_ps() calling tds_convert\n");
2522 :
2523 1384 : len = tds_convert(g_dblib_ctx.tds_ctx, srctype, src, srclen, desttype, &dres);
2524 1384 : tdsdump_log(TDS_DBG_INFO1, "dbconvert_ps() called tds_convert returned %d\n", len);
2525 :
2526 1384 : if (len < 0) {
2527 0 : _dblib_convert_err(dbproc, len);
2528 0 : return -1;
2529 : }
2530 :
2531 1384 : switch (desttype) {
2532 30 : case SYBBINARY:
2533 : case SYBVARBINARY:
2534 : case SYBIMAGE:
2535 30 : if (len > destlen && destlen >= 0) {
2536 0 : dbperror(dbproc, SYBECOFL, 0);
2537 0 : ret = -1;
2538 : } else {
2539 30 : memcpy(dest, dres.ib, len);
2540 30 : if (len < destlen)
2541 30 : memset(dest + len, 0, destlen - len);
2542 : ret = len;
2543 : }
2544 30 : free(dres.ib);
2545 30 : break;
2546 480 : case SYBINT1:
2547 : case SYBINT2:
2548 : case SYBINT4:
2549 : case SYBINT8:
2550 : case SYBFLT8:
2551 : case SYBREAL:
2552 : case SYBBIT:
2553 : case SYBBITN:
2554 : case SYBMONEY:
2555 : case SYBMONEY4:
2556 : case SYBDATETIME:
2557 : case SYBDATETIME4:
2558 : case SYBTIME:
2559 : case SYBDATE:
2560 : case SYB5BIGDATETIME:
2561 : case SYB5BIGTIME:
2562 : case SYBUNIQUE:
2563 : case SYBMSDATE:
2564 : case SYBMSTIME:
2565 : case SYBMSDATETIME2:
2566 : case SYBMSDATETIMEOFFSET:
2567 : case SYBNUMERIC:
2568 : case SYBDECIMAL:
2569 480 : memcpy(dest, &(dres.ti), len);
2570 480 : ret = len;
2571 480 : break;
2572 874 : case SYBCHAR:
2573 : case SYBVARCHAR:
2574 : case SYBTEXT:
2575 874 : tdsdump_log(TDS_DBG_INFO1, "dbconvert_ps() outputting %d bytes character data destlen = %d \n", len, destlen);
2576 :
2577 874 : if (destlen < -2)
2578 : destlen = 0; /* failure condition */
2579 :
2580 874 : switch (destlen) {
2581 : case 0:
2582 : ret = -1;
2583 : break;
2584 204 : case -1: /* rtrim and null terminate */
2585 204 : for (i = len - 1; i >= 0 && dres.c[i] == ' '; --i) {
2586 0 : len = i;
2587 : }
2588 204 : memcpy(dest, dres.c, len);
2589 204 : dest[len] = '\0';
2590 204 : ret = len;
2591 204 : break;
2592 0 : case -2: /* just null terminate */
2593 0 : memcpy(dest, dres.c, len);
2594 0 : dest[len] = 0;
2595 0 : ret = len;
2596 0 : break;
2597 670 : default:
2598 670 : assert(destlen > 0);
2599 670 : if (destlen < 0 || len > destlen) {
2600 0 : dbperror(dbproc, SYBECOFL, 0);
2601 0 : ret = -1;
2602 0 : tdsdump_log(TDS_DBG_INFO1, "%d bytes type %d -> %d, destlen %d < %d required\n",
2603 : srclen, srctype, desttype, destlen, len);
2604 : break;
2605 : }
2606 : /* else pad with blanks */
2607 670 : memcpy(dest, dres.c, len);
2608 670 : if (len < destlen)
2609 670 : memset(dest + len, ' ', destlen - len);
2610 : ret = len;
2611 :
2612 : break;
2613 : }
2614 :
2615 874 : free(dres.c);
2616 :
2617 874 : break;
2618 0 : default:
2619 0 : tdsdump_log(TDS_DBG_INFO1, "error: dbconvert_ps(): unrecognized desttype %d \n", desttype);
2620 : ret = -1;
2621 : break;
2622 :
2623 : }
2624 : return (ret);
2625 : }
2626 :
2627 : /**
2628 : * \ingroup dblib_core
2629 : * \brief cf. dbconvert_ps(), above
2630 : *
2631 : * \em Sybase: Convert numeric types.
2632 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2633 : * \param srctype datatype of the data to convert.
2634 : * \param src buffer to convert
2635 : * \param srclen length of \a src
2636 : * \param desttype target datatype
2637 : * \param dest output buffer
2638 : * \param destlen size of \a dest
2639 : * \param typeinfo address of a \c DBTYPEINFO structure that governs the precision & scale of the output, may be \c NULL.
2640 : * \sa dbaltbind(), dbaltbind_ps(), dbbind(), dbbind_ps(), dbconvert_ps(), dberrhandle(), dbsetnull(), dbsetversion(), dbwillconvert().
2641 : */
2642 : DBINT
2643 1838 : dbconvert(DBPROCESS * dbproc,
2644 : int srctype, const BYTE * src, DBINT srclen, int desttype, BYTE * dest, DBINT destlen)
2645 : {
2646 1838 : DBTYPEINFO ti, *pti = NULL;
2647 :
2648 1838 : tdsdump_log(TDS_DBG_FUNC, "dbconvert(%p)\n", dbproc);
2649 : /* dbproc can be NULL*/
2650 :
2651 1838 : DBPERROR_RETURN(!is_tds_type_valid(desttype), SYBEUDTY);
2652 :
2653 1838 : if (is_numeric_type(desttype)) {
2654 : DBNUMERIC *num;
2655 :
2656 : /* FIXME what happen if client do not reset values ??? */
2657 0 : if (dbproc->msdblib) {
2658 0 : num = (DBNUMERIC *) dest;
2659 0 : ti.precision = num->precision;
2660 0 : ti.scale = num->scale;
2661 0 : pti = &ti;
2662 : } else {
2663 : /* for Sybase passing NULL as DBTYPEINFO is fine */
2664 : }
2665 : }
2666 :
2667 1838 : return dbconvert_ps(dbproc, srctype, src, srclen, desttype, dest, destlen, pti);
2668 : }
2669 :
2670 : /**
2671 : * \ingroup dblib_core
2672 : * \brief Tie a host variable to a resultset column.
2673 : *
2674 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2675 : * \param column Nth column, starting at 1.
2676 : * \param vartype datatype of the host variable that will receive the data
2677 : * \param varlen size of host variable pointed to \a varaddr
2678 : * \param varaddr address of host variable
2679 : * \retval SUCCEED everything worked.
2680 : * \retval FAIL no such \a column or no such conversion possible, or target buffer too small.
2681 : * \sa
2682 : */
2683 : RETCODE
2684 21718 : dbbind(DBPROCESS * dbproc, int column, int vartype, DBINT varlen, BYTE * varaddr)
2685 : {
2686 21718 : TDSCOLUMN *colinfo = NULL;
2687 : TDSRESULTINFO* results;
2688 : TDS_SERVER_TYPE srctype, desttype;
2689 :
2690 21718 : tdsdump_log(TDS_DBG_FUNC, "dbbind(%p, %d, %d, %d, %p)\n", dbproc, column, vartype, varlen, varaddr);
2691 21718 : CHECK_CONN(FAIL);
2692 21718 : CHECK_PARAMETER(varaddr, SYBEABNV, FAIL);
2693 :
2694 21718 : results = dbproc->tds_socket->res_info;
2695 :
2696 21718 : if (results == NULL || results->num_cols < column || column < 1) {
2697 0 : dbperror(dbproc, SYBEABNC, 0);
2698 0 : return FAIL;
2699 : }
2700 :
2701 21718 : if (varlen < 0) {
2702 154 : switch (vartype) {
2703 90 : case CHARBIND:
2704 : case STRINGBIND:
2705 : case NTBSTRINGBIND:
2706 : case VARYCHARBIND:
2707 : case VARYBINBIND:
2708 : /*
2709 : * No message for this error. Documentation doesn't define varlen < 0, but
2710 : * experimentation with Sybase db-lib shows it's accepted as if zero.
2711 : */
2712 90 : tdsdump_log(TDS_DBG_FUNC, "dbbind: setting varlen (%d) to 0\n", varlen);
2713 : varlen = 0;
2714 : break;
2715 : }
2716 : }
2717 :
2718 21628 : if (0 == varlen) { /* "Note that if varlen is 0, no padding takes place." */
2719 21354 : switch (vartype) {
2720 10906 : case CHARBIND:
2721 : case STRINGBIND:
2722 : case NTBSTRINGBIND:
2723 10906 : varlen = -1;
2724 10906 : break;
2725 : default:
2726 : break; /* dbconvert: "The destlen is ignored for all fixed-length, non-NULL data types." */
2727 : }
2728 364 : }
2729 :
2730 21718 : dbproc->avail_flag = FALSE;
2731 :
2732 21718 : colinfo = dbproc->tds_socket->res_info->columns[column - 1];
2733 21718 : srctype = tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
2734 21718 : desttype = dblib_bound_type(vartype);
2735 21718 : if (desttype == TDS_INVALID_TYPE) {
2736 0 : dbperror(dbproc, SYBEBTYP, 0);
2737 0 : return FAIL;
2738 : }
2739 :
2740 21718 : if (!dbwillconvert(srctype, desttype)) {
2741 0 : dbperror(dbproc, SYBEABMT, 0);
2742 0 : return FAIL;
2743 : }
2744 :
2745 21718 : colinfo->column_varaddr = (char *) varaddr;
2746 21718 : colinfo->column_bindtype = vartype;
2747 21718 : colinfo->column_bindlen = varlen;
2748 :
2749 21718 : return SUCCEED;
2750 : } /* dbbind() */
2751 :
2752 : /**
2753 : * \ingroup dblib_core
2754 : * \brief set name and location of the \c interfaces file FreeTDS should use to look up a servername.
2755 : *
2756 : * Does not affect lookups or location of \c freetds.conf.
2757 : * \param filename name of \c interfaces. It can be NULL (reset to default)
2758 : * \sa dbopen()
2759 : */
2760 : void
2761 0 : dbsetifile(char *filename)
2762 : {
2763 0 : tdsdump_log(TDS_DBG_FUNC, "dbsetifile(%s)\n", filename? filename : "0x00");
2764 :
2765 0 : tds_set_interfaces_file_loc(filename);
2766 0 : }
2767 :
2768 : /**
2769 : * \ingroup dblib_core
2770 : * \brief Tie a null-indicator to a regular result column.
2771 : *
2772 : *
2773 : * When a row is fetched, the indicator variable tells the state of the column's data.
2774 : *
2775 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2776 : * \param column Nth column in the result set, starting with 1.
2777 : * \param indicator address of host variable.
2778 : * \retval SUCCEED variable accepted.
2779 : * \retval FAIL \a indicator is NULL or \a column is out of range.
2780 : * \remarks Contents of \a indicator are set with \c dbnextrow(). Possible values are:
2781 : * - 0 \a column bound successfully
2782 : * - -1 \a column is NULL.
2783 : * - >0 true length of data, had \a column not been truncated due to insufficient space in the columns bound host variable .
2784 : * \sa dbanullbind(), dbbind(), dbdata(), dbdatlen(), dbnextrow().
2785 : */
2786 : RETCODE
2787 240 : dbnullbind(DBPROCESS * dbproc, int column, DBINT * indicator)
2788 : {
2789 : TDSCOLUMN *colinfo;
2790 :
2791 240 : tdsdump_log(TDS_DBG_FUNC, "dbnullbind(%p, %d, %p)\n", dbproc, column, indicator);
2792 :
2793 240 : colinfo = dbcolptr(dbproc, column);
2794 240 : if (!colinfo)
2795 : return FAIL; /* dbcolptr sent SYBECNOR, Column number out of range */
2796 :
2797 240 : colinfo->column_nullbind = (TDS_SMALLINT *)indicator;
2798 240 : return SUCCEED;
2799 : }
2800 :
2801 : /**
2802 : * \ingroup dblib_core
2803 : * \brief Tie a null-indicator to a compute result column.
2804 : *
2805 : *
2806 : * When a row is fetched, the indicator variable tells the state of the column's data.
2807 : *
2808 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2809 : * \param computeid identifies which one of potientially many compute rows is meant. The first compute
2810 : * clause has \a computeid == 1.
2811 : * \param column Nth column in the result set, starting with 1.
2812 : * \param indicator address of host variable.
2813 : * \retval SUCCEED variable accepted.
2814 : * \retval FAIL \a indicator is NULL or \a column is out of range.
2815 : * \remarks Contents of \a indicator are set with \c dbnextrow(). Possible values are:
2816 : * - 0 \a column bound successfully
2817 : * - -1 \a column is NULL.
2818 : * - >0 true length of data, had \a column not been truncated due to insufficient space in the columns bound host variable .
2819 : * \sa dbadata(), dbadlen(), dbaltbind(), dbnextrow(), dbnullbind().
2820 : * \todo Never fails, but only because failure conditions aren't checked.
2821 : */
2822 : RETCODE
2823 0 : dbanullbind(DBPROCESS * dbproc, int computeid, int column, DBINT * indicator)
2824 : {
2825 : TDSCOLUMN *curcol;
2826 :
2827 0 : tdsdump_log(TDS_DBG_FUNC, "dbanullbind(%p, %d, %d, %p)\n", dbproc, computeid, column, indicator);
2828 :
2829 0 : curcol = dbacolptr(dbproc, computeid, column, true);
2830 0 : if (!curcol)
2831 : return FAIL;
2832 :
2833 : /*
2834 : * XXX Need to check for possibly problems before assuming
2835 : * everything is okay
2836 : */
2837 0 : curcol->column_nullbind = (TDS_SMALLINT *)indicator;
2838 :
2839 0 : return SUCCEED;
2840 : }
2841 :
2842 : /**
2843 : * \ingroup dblib_core
2844 : * \brief Indicates whether or not the count returned by dbcount is real (Microsoft-compatibility feature).
2845 : *
2846 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2847 : * \returns TRUE if the count returned by dbcount is real or FALSE if the count returned by dbcount is not real.
2848 : * \sa DBCOUNT(), dbcount().
2849 : */
2850 : BOOL
2851 0 : dbiscount(DBPROCESS * dbproc)
2852 : {
2853 0 : tdsdump_log(TDS_DBG_FUNC, "dbiscount(%p)\n", dbproc);
2854 0 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
2855 :
2856 0 : return dbproc->tds_socket && dbproc->tds_socket->rows_affected != TDS_NO_COUNT;
2857 : }
2858 :
2859 : /**
2860 : * \ingroup dblib_core
2861 : * \brief Get count of rows processed
2862 : *
2863 : *
2864 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2865 : * \returns
2866 : * - for insert/update/delete, count of rows affected.
2867 : * - for select, count of rows returned, after all rows have been fetched.
2868 : * \sa DBCOUNT(), dbnextrow(), dbresults().
2869 : */
2870 : DBINT
2871 1294 : dbcount(DBPROCESS * dbproc)
2872 : {
2873 1294 : tdsdump_log(TDS_DBG_FUNC, "dbcount(%p)\n", dbproc);
2874 1294 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
2875 :
2876 1294 : if (!dbproc->tds_socket || dbproc->tds_socket->rows_affected == TDS_NO_COUNT)
2877 : return -1;
2878 796 : return (DBINT)dbproc->tds_socket->rows_affected;
2879 : }
2880 :
2881 : /**
2882 : * \ingroup dblib_core
2883 : * \brief Clear \a n rows from the row buffer.
2884 : *
2885 : *
2886 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2887 : * \param n number of rows to remove, >= 0.
2888 : * \sa dbgetrow(), dbnextrow(), dbsetopt().
2889 : */
2890 : void
2891 200 : dbclrbuf(DBPROCESS * dbproc, DBINT n)
2892 : {
2893 200 : tdsdump_log(TDS_DBG_FUNC, "dbclrbuf(%p, %d)\n", dbproc, n);
2894 200 : CHECK_PARAMETER(dbproc, SYBENULL, );
2895 :
2896 200 : if (n <= 0)
2897 : return;
2898 :
2899 200 : if (dbproc->dbopts[DBBUFFER].factive) {
2900 160 : DBPROC_ROWBUF * buf = &(dbproc->row_buf);
2901 160 : int count = buffer_count(buf);
2902 160 : if (n >= count)
2903 140 : n = count - 1;
2904 160 : buffer_delete_rows(&(dbproc->row_buf), n);
2905 : }
2906 : }
2907 :
2908 : /**
2909 : * \ingroup dblib_core
2910 : * \brief Test whether or not a datatype can be converted to another datatype
2911 : *
2912 : * \param srctype type converting from
2913 : * \param desttype type converting to
2914 : * \remarks dbwillconvert() lies sometimes. Some datatypes \em should be convertible but aren't yet in our implementation.
2915 : * Legal unimplemented conversions return \em TRUE.
2916 : * \retval TRUE convertible, or should be.
2917 : * \retval FAIL not convertible.
2918 : * \sa dbaltbind(), dbbind(), dbconvert(), dbconvert_ps(), \c src/dblib/unittests/convert().c().
2919 : */
2920 : DBBOOL
2921 22594 : dbwillconvert(int srctype, int desttype)
2922 : {
2923 22594 : tdsdump_log(TDS_DBG_FUNC, "dbwillconvert(%s, %s)\n", tds_prdatatype(srctype), tds_prdatatype(desttype));
2924 22594 : return tds_willconvert(srctype, desttype) ? TRUE : FALSE;
2925 : }
2926 :
2927 : static int
2928 1448 : dblib_coltype(TDSCOLUMN *colinfo)
2929 : {
2930 1448 : switch (colinfo->column_type) {
2931 : case SYBVARCHAR:
2932 : return SYBCHAR;
2933 0 : case SYBVARBINARY:
2934 : return SYBBINARY;
2935 0 : case SYBLONGCHAR:
2936 : case SYBUNITEXT:
2937 : case SYBMSXML:
2938 : return SYBTEXT;
2939 : /* these types are handled by tds_get_conversion_type */
2940 : case SYBBITN:
2941 : case SYBDATEN:
2942 : case SYBDATETIMN:
2943 : case SYBFLTN:
2944 : case SYBINTN:
2945 : case SYBMONEYN:
2946 : case SYBTIMEN:
2947 : case SYBUINTN:
2948 : case SYBMSTABLE:
2949 : break;
2950 : /* these types are supported */
2951 : case SYBCHAR:
2952 : case SYBINT1:
2953 : case SYBINT2:
2954 : case SYBINT4:
2955 : case SYBINT8:
2956 : case SYBFLT8:
2957 : case SYBDATETIME:
2958 : case SYBBIT:
2959 : case SYBTEXT:
2960 : case SYBNTEXT:
2961 : case SYBIMAGE:
2962 : case SYBMONEY4:
2963 : case SYBMONEY:
2964 : case SYBDATETIME4:
2965 : case SYBREAL:
2966 : case SYBBINARY:
2967 : case SYBVOID:
2968 : case SYBNUMERIC:
2969 : case SYBDECIMAL:
2970 : case SYBNVARCHAR:
2971 : case SYBDATE:
2972 : case SYBTIME:
2973 : case SYB5BIGDATETIME:
2974 : case SYB5BIGTIME:
2975 : case SYBMSDATE:
2976 : case SYBMSTIME:
2977 : case SYBMSDATETIME2:
2978 : case SYBMSDATETIMEOFFSET:
2979 : break;
2980 : /* exclude cardinal types */
2981 : case XSYBVARBINARY:
2982 : case XSYBBINARY:
2983 : case XSYBNVARCHAR:
2984 : case XSYBVARCHAR:
2985 : case XSYBNCHAR:
2986 : case SYB5INT8:
2987 : break;
2988 : #if !ENABLE_EXTRA_CHECKS
2989 : /* TODO these should be handled in some ways */
2990 : case SYBUNIQUE: /* or SYBBLOB */
2991 : case SYBVARIANT:
2992 : case SYBMSUDT:
2993 : case SYBLONGBINARY:
2994 : case SYBUINT1:
2995 : case SYBUINT2:
2996 : case SYBUINT4:
2997 : case SYBUINT8:
2998 : case SYBINTERVAL:
2999 : case SYBSINT1:
3000 : case SYBXML:
3001 : break;
3002 : #endif
3003 : }
3004 328 : return tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
3005 : }
3006 :
3007 : /**
3008 : * \ingroup dblib_core
3009 : * \brief Get the datatype of a regular result set column.
3010 : *
3011 : *
3012 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3013 : * \param column Nth in the result set, starting from 1.
3014 : * \returns \c SYB* datetype token value, or zero if \a column out of range
3015 : * \sa dbcollen(), dbcolname(), dbdata(), dbdatlen(), dbnumcols(), dbprtype(), dbvarylen().
3016 : */
3017 : int
3018 1562 : dbcoltype(DBPROCESS * dbproc, int column)
3019 : {
3020 : TDSCOLUMN *colinfo;
3021 :
3022 1562 : tdsdump_log(TDS_DBG_FUNC, "dbcoltype(%p, %d)\n", dbproc, column);
3023 :
3024 1562 : colinfo = dbcolptr(dbproc, column);
3025 1562 : if (!colinfo)
3026 : return -1;
3027 :
3028 1432 : return dblib_coltype(colinfo);
3029 : }
3030 :
3031 : /**
3032 : * \ingroup dblib_core
3033 : * \brief Get user-defined datatype of a regular result column.
3034 : *
3035 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3036 : * \param column Nth in the result set, starting from 1.
3037 : * \returns \c SYB* datetype token value, or -1 if \a column out of range
3038 : * \sa dbaltutype(), dbcoltype().
3039 : */
3040 : int
3041 0 : dbcolutype(DBPROCESS * dbproc, int column)
3042 : {
3043 : TDSCOLUMN *colinfo;
3044 :
3045 0 : tdsdump_log(TDS_DBG_FUNC, "dbcolutype(%p, %d)\n", dbproc, column);
3046 :
3047 0 : colinfo = dbcolptr(dbproc, column);
3048 0 : if (!colinfo)
3049 : return -1;
3050 :
3051 0 : return colinfo->column_usertype;
3052 : }
3053 :
3054 : /**
3055 : * \ingroup dblib_core
3056 : * \brief Get precision and scale information for a regular result column.
3057 : *
3058 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3059 : * \param column Nth in the result set, starting from 1.
3060 : * \return Pointer to a DBTYPEINFO structure . NULL \a column is out of range.
3061 : * \sa dbcollen(), dbcolname(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols(), dbprtype(), dbvarylen().
3062 : */
3063 : DBTYPEINFO *
3064 0 : dbcoltypeinfo(DBPROCESS * dbproc, int column)
3065 : {
3066 : /* moved typeinfo from static into dbproc structure to make thread safe. (mlilback 11/7/01) */
3067 : TDSCOLUMN *colinfo;
3068 :
3069 0 : tdsdump_log(TDS_DBG_FUNC, "dbcoltypeinfo(%p, %d)\n", dbproc, column);
3070 :
3071 0 : colinfo = dbcolptr(dbproc, column);
3072 0 : if (!colinfo)
3073 : return NULL;
3074 :
3075 0 : dbproc->typeinfo.precision = colinfo->column_prec;
3076 0 : dbproc->typeinfo.scale = colinfo->column_scale;
3077 0 : return &dbproc->typeinfo;
3078 : }
3079 :
3080 : /**
3081 : * \brief Get a bunch of column attributes with a single call (Microsoft-compatibility feature).
3082 : *
3083 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3084 : * \param type must be CI_REGULAR or CI_ALTERNATE (CI_CURSOR is defined by the vendor, but is not yet implemented).
3085 : * \param column Nth in the result set, starting from 1.
3086 : * \param computeid (ignored)
3087 : * \param pdbcol address of structure to be populated by this function.
3088 : * \return SUCCEED or FAIL.
3089 : * \sa dbcolbrowse(), dbqual(), dbtabbrowse(), dbtabcount(), dbtabname(), dbtabsource(), dbtsnewlen(), dbtsnewval(), dbtsput().
3090 : * \todo Support cursor rows.
3091 : */
3092 : RETCODE
3093 0 : dbcolinfo(DBPROCESS *dbproc, CI_TYPE type, DBINT column, DBINT computeid, DBCOL *pdbcol)
3094 : {
3095 : DBTYPEINFO *ps;
3096 : TDSCOMPUTEINFO *info;
3097 : TDSCOLUMN *colinfo;
3098 : unsigned int i;
3099 :
3100 0 : tdsdump_log(TDS_DBG_FUNC, "dbcolinfo(%p, %d, %d, %d, %p)\n", dbproc, type, column, computeid, pdbcol);
3101 :
3102 0 : colinfo = dbcolptr(dbproc, column);
3103 0 : if (!colinfo)
3104 : return FAIL;
3105 :
3106 0 : CHECK_NULP(pdbcol, "dbcolinfo", 5, FAIL);
3107 :
3108 0 : if (type == CI_REGULAR) {
3109 :
3110 0 : strlcpy(pdbcol->Name, dbcolname(dbproc, column), sizeof(pdbcol->Name));
3111 0 : strlcpy(pdbcol->ActualName, dbcolname(dbproc, column), sizeof(pdbcol->ActualName));
3112 0 : strlcpy(pdbcol->TableName, tds_dstr_cstr(&colinfo->table_name), sizeof(pdbcol->TableName));
3113 :
3114 0 : pdbcol->Type = dbcoltype(dbproc, column);
3115 0 : pdbcol->UserType = dbcolutype(dbproc, column);
3116 0 : pdbcol->MaxLength = dbcollen(dbproc, column);
3117 0 : pdbcol->Null = _dbnullable(dbproc, column);
3118 0 : pdbcol->VarLength = dbvarylen(dbproc, column);
3119 :
3120 0 : ps = dbcoltypeinfo(dbproc, column);
3121 :
3122 0 : if( ps ) {
3123 0 : pdbcol->Precision = ps->precision;
3124 0 : pdbcol->Scale = ps->scale;
3125 : }
3126 :
3127 0 : pdbcol->Updatable = colinfo->column_writeable ? TRUE : FALSE;
3128 0 : pdbcol->Identity = colinfo->column_identity ? TRUE : FALSE;
3129 :
3130 0 : return SUCCEED;
3131 : }
3132 :
3133 0 : if (type == CI_ALTERNATE) {
3134 :
3135 0 : if (computeid == 0)
3136 : return FAIL;
3137 :
3138 0 : for (i = 0;; ++i) {
3139 0 : if (i >= dbproc->tds_socket->num_comp_info)
3140 : return FAIL;
3141 0 : info = dbproc->tds_socket->comp_info[i];
3142 0 : if (info->computeid == computeid)
3143 : break;
3144 : }
3145 :
3146 : /* if either the compute id or the column number are invalid, return -1 */
3147 0 : if (column < 1 || column > info->num_cols)
3148 : return FAIL;
3149 :
3150 0 : colinfo = info->columns[column - 1];
3151 :
3152 0 : strlcpy(pdbcol->Name, tds_dstr_cstr(&colinfo->column_name), sizeof(pdbcol->Name));
3153 0 : strlcpy(pdbcol->ActualName, tds_dstr_cstr(&colinfo->column_name), sizeof(pdbcol->ActualName));
3154 0 : strlcpy(pdbcol->TableName, tds_dstr_cstr(&colinfo->table_name), sizeof(pdbcol->TableName));
3155 :
3156 0 : pdbcol->Type = dbalttype(dbproc, computeid, column);
3157 0 : pdbcol->UserType = dbaltutype(dbproc, computeid, column);
3158 0 : pdbcol->MaxLength = dbaltlen(dbproc, computeid, column);
3159 0 : if (colinfo->column_nullable)
3160 0 : pdbcol->Null = TRUE;
3161 : else
3162 0 : pdbcol->Null = FALSE;
3163 :
3164 0 : pdbcol->VarLength = FALSE;
3165 :
3166 0 : if (colinfo->column_nullable
3167 0 : || is_nullable_type(colinfo->column_type))
3168 0 : pdbcol->VarLength = TRUE;
3169 :
3170 0 : pdbcol->Precision = colinfo->column_prec;
3171 0 : pdbcol->Scale = colinfo->column_scale;
3172 :
3173 0 : pdbcol->Updatable = colinfo->column_writeable ? TRUE : FALSE ;
3174 0 : pdbcol->Identity = colinfo->column_identity ? TRUE : FALSE ;
3175 :
3176 0 : return SUCCEED;
3177 : }
3178 :
3179 : return FAIL;
3180 : }
3181 :
3182 : /**
3183 : * \ingroup dblib_core
3184 : * \brief Get base database column name for a result set column.
3185 : *
3186 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3187 : * \param column Nth in the result set, starting from 1.
3188 : * \return pointer to ASCII null-terminated string, the name of the column. On error, NULL.
3189 : * \sa dbcolbrowse(), dbqual(), dbtabbrowse(), dbtabcount(), dbtabname(), dbtabsource(), dbtsnewlen(), dbtsnewval(), dbtsput().
3190 : */
3191 : char *
3192 0 : dbcolsource(DBPROCESS * dbproc, int column)
3193 : {
3194 : TDSCOLUMN *colinfo;
3195 :
3196 0 : tdsdump_log(TDS_DBG_FUNC, "dbcolsource(%p, %d)\n", dbproc, column);
3197 :
3198 0 : colinfo = dbcolptr(dbproc, column);
3199 0 : if (!colinfo)
3200 : return NULL;
3201 :
3202 0 : return tds_dstr_buf(tds_dstr_isempty(&colinfo->table_column_name) ?
3203 : &colinfo->column_name :
3204 : &colinfo->table_column_name);
3205 : }
3206 :
3207 : /**
3208 : * \ingroup dblib_core
3209 : * \brief Get size of a regular result column.
3210 : *
3211 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3212 : * \param column Nth in the result set, starting from 1.
3213 : * \return size of the column (not of data in any particular row). On error, -1.
3214 : * \sa dbcolname(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols().
3215 : */
3216 : DBINT
3217 0 : dbcollen(DBPROCESS * dbproc, int column)
3218 : {
3219 : TDSCOLUMN *colinfo;
3220 :
3221 0 : tdsdump_log(TDS_DBG_FUNC, "dbcollen(%p, %d)\n", dbproc, column);
3222 :
3223 0 : colinfo = dbcolptr(dbproc, column);
3224 0 : if (!colinfo)
3225 : return -1;
3226 :
3227 0 : return colinfo->column_size;
3228 : }
3229 :
3230 : /**
3231 : * \ingroup dblib_core
3232 : * \brief Get size of a result column needed to print column.
3233 : *
3234 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3235 : * \param column Nth in the result set, starting from 1.
3236 : * \return size of the column in characters (not of data in any particular row). On error, -1.
3237 : * \sa dbcolname(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols().
3238 : */
3239 : DBINT
3240 0 : dbprcollen(DBPROCESS * dbproc, int column)
3241 : {
3242 : TDSCOLUMN *colinfo;
3243 :
3244 0 : tdsdump_log(TDS_DBG_FUNC, "dbprcollen(%p, %d)\n", dbproc, column);
3245 :
3246 0 : colinfo = dbcolptr(dbproc, column);
3247 0 : if (!colinfo)
3248 : return 0;
3249 :
3250 0 : return _get_printable_size(colinfo);
3251 : }
3252 :
3253 :
3254 : /* dbvarylen(), pkleef@openlinksw.com 01/21/02 */
3255 : /**
3256 : * \ingroup dblib_core
3257 : * \brief Determine whether a column can vary in size.
3258 : *
3259 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3260 : * \param column Nth in the result set, starting from 1.
3261 : * \retval TRUE datatype of column can vary in size, or is nullable.
3262 : * \retval FALSE datatype of column is fixed and is not nullable.
3263 : * \sa dbcollen(), dbcolname(), dbcoltype(), dbdata(), dbdatlen(), dbnumcols(), dbprtype().
3264 : */
3265 : DBINT
3266 1588 : dbvarylen(DBPROCESS * dbproc, int column)
3267 : {
3268 : TDSCOLUMN *colinfo;
3269 :
3270 1588 : tdsdump_log(TDS_DBG_FUNC, "dbvarylen(%p, %d)\n", dbproc, column);
3271 :
3272 1588 : colinfo = dbcolptr(dbproc, column);
3273 1588 : if (!colinfo)
3274 : return FALSE;
3275 :
3276 1588 : if (colinfo->column_nullable)
3277 : return TRUE;
3278 :
3279 1248 : switch (colinfo->column_type) {
3280 : /* variable length fields */
3281 : case SYBNVARCHAR:
3282 : case SYBVARBINARY:
3283 : case SYBVARCHAR:
3284 : case XSYBVARCHAR:
3285 : case XSYBNVARCHAR:
3286 : case XSYBVARBINARY:
3287 : return TRUE;
3288 :
3289 : /* types that can be null */
3290 : case SYBBITN:
3291 : case SYBDATETIMN:
3292 : case SYBDECIMAL:
3293 : case SYBFLTN:
3294 : case SYBINTN:
3295 : case SYBMONEYN:
3296 : case SYBNUMERIC:
3297 : case SYBDATEN:
3298 : case SYBTIMEN:
3299 : case SYBUINTN:
3300 : case SYB5BIGDATETIME:
3301 : case SYB5BIGTIME:
3302 : case SYBMSDATE:
3303 : case SYBMSTIME:
3304 : case SYBMSDATETIME2:
3305 : case SYBMSDATETIMEOFFSET:
3306 : case SYBVARIANT:
3307 : case SYBUNIQUE:
3308 : return TRUE;
3309 :
3310 : /* blob types */
3311 : case SYBIMAGE:
3312 : case SYBNTEXT:
3313 : case SYBTEXT:
3314 : case SYBLONGBINARY:
3315 : /* case SYBBLOB: */ /* same as SYBUNIQUE */
3316 : case SYB5INT8:
3317 : case SYBUNITEXT:
3318 : case SYBXML:
3319 : case SYBMSUDT:
3320 : case SYBMSXML:
3321 : return TRUE;
3322 : case SYBMSTABLE:
3323 : return TRUE;
3324 :
3325 0 : case SYBLONGCHAR:
3326 : /* case XSYBCHAR: */ /* same as SYBLONGCHAR */
3327 0 : if (colinfo->column_varint_size >= 4)
3328 : return TRUE;
3329 : break;
3330 :
3331 : /* with defined size*/
3332 : case SYBCHAR:
3333 : case SYBBINARY:
3334 : case XSYBNCHAR:
3335 : case XSYBBINARY:
3336 : break;
3337 :
3338 : /* fixed */
3339 : case SYBINT1:
3340 : case SYBINT2:
3341 : case SYBINT4:
3342 : case SYBFLT8:
3343 : case SYBDATETIME:
3344 : case SYBBIT:
3345 : case SYBMONEY4:
3346 : case SYBMONEY:
3347 : case SYBDATETIME4:
3348 : case SYBREAL:
3349 : case SYBINT8:
3350 : case SYBUINT1:
3351 : case SYBUINT2:
3352 : case SYBUINT4:
3353 : case SYBUINT8:
3354 : case SYBSINT1:
3355 : case SYBTIME:
3356 : case SYBDATE:
3357 : case SYBVOID:
3358 : case SYBINTERVAL:
3359 : break;
3360 : }
3361 680 : return FALSE;
3362 : }
3363 :
3364 : /**
3365 : * \ingroup dblib_core
3366 : * \brief Get size of current row's data in a regular result column.
3367 : *
3368 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3369 : * \param column Nth in the result set, starting from 1.
3370 : * \return size of the data, in bytes.
3371 : * \sa dbcollen(), dbcolname(), dbcoltype(), dbdata(), dbnumcols().
3372 : */
3373 : DBINT
3374 2344 : dbdatlen(DBPROCESS * dbproc, int column)
3375 : {
3376 : DBINT len;
3377 : TDSCOLUMN *colinfo;
3378 :
3379 2344 : tdsdump_log(TDS_DBG_FUNC, "dbdatlen(%p, %d)\n", dbproc, column);
3380 :
3381 2344 : colinfo = dbcolptr(dbproc, column);
3382 2344 : if (!colinfo)
3383 : return -1;
3384 :
3385 2344 : len = TDS_MAX(colinfo->column_cur_size, 0);
3386 :
3387 2344 : tdsdump_log(TDS_DBG_FUNC, "dbdatlen() type = %d, len= %d\n", colinfo->column_type, len);
3388 :
3389 : return len;
3390 : }
3391 :
3392 : /**
3393 : * \ingroup dblib_core
3394 : * \brief Get address of data in a regular result column.
3395 : *
3396 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3397 : * \param column Nth in the result set, starting from 1.
3398 : * \return pointer the data, or NULL if data are NULL, or if \a column is out of range.
3399 : * \sa dbbind(), dbcollen(), dbcolname(), dbcoltype(), dbdatlen(), dbnumcols().
3400 : */
3401 : BYTE *
3402 3002 : dbdata(DBPROCESS * dbproc, int column)
3403 : {
3404 3002 : tdsdump_log(TDS_DBG_FUNC, "dbdata(%p, %d)\n", dbproc, column);
3405 :
3406 6004 : return _dbcoldata(dbcolptr(dbproc, column));
3407 : }
3408 :
3409 : /** \internal
3410 : * \ingroup dblib_internal
3411 : * \brief Return data from a column
3412 : *
3413 : * \param colinfo contains information on a result column.
3414 : * \return pointer to the data, or NULL if data are NULL
3415 : * \sa dbdata(), dbretdata()
3416 : */
3417 : static BYTE *
3418 : _dbcoldata(TDSCOLUMN *colinfo)
3419 : {
3420 : BYTE *res;
3421 : static const BYTE empty[1] = { 0 };
3422 :
3423 3072 : if (!colinfo || colinfo->column_cur_size < 0)
3424 : return NULL;
3425 :
3426 2528 : res = colinfo->column_data;
3427 2528 : if (is_blob_col(colinfo))
3428 274 : res = (BYTE *) ((TDSBLOB *) res)->textvalue;
3429 2528 : if (!res)
3430 : return (BYTE *) empty;
3431 : return res;
3432 : }
3433 :
3434 : /**
3435 : * \ingroup dblib_core
3436 : * \brief Cancel the current command batch.
3437 : *
3438 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3439 : * \retval SUCCEED always.
3440 : * \sa dbcanquery(), dbnextrow(), dbresults(), dbsetinterrupt(), dbsqlexec(), dbsqlok(), dbsqlsend().
3441 : * \todo Check for failure and return accordingly.
3442 : */
3443 : RETCODE
3444 10320 : dbcancel(DBPROCESS * dbproc)
3445 : {
3446 : TDSSOCKET *tds;
3447 :
3448 10320 : tdsdump_log(TDS_DBG_FUNC, "dbcancel(%p)\n", dbproc);
3449 10320 : CHECK_CONN(FAIL);
3450 :
3451 10320 : tds = dbproc->tds_socket;
3452 :
3453 10320 : tds_send_cancel(tds);
3454 10320 : tds_process_cancel(tds);
3455 :
3456 10320 : return SUCCEED;
3457 : }
3458 :
3459 : /**
3460 : * \ingroup dblib_core
3461 : * \brief Determine size buffer required to hold the results returned by dbsprhead(), dbsprline(), and dbspr1row().
3462 : *
3463 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3464 : * \return size of buffer requirement, in bytes.
3465 : * \remarks An esoteric function.
3466 : * \sa dbprhead(), dbprrow(), dbspr1row(), dbsprhead(), dbsprline().
3467 : */
3468 : DBINT
3469 0 : dbspr1rowlen(DBPROCESS * dbproc)
3470 : {
3471 : TDSSOCKET *tds;
3472 0 : int col, len = 0;
3473 :
3474 0 : tdsdump_log(TDS_DBG_FUNC, "dbspr1rowlen(%p)\n", dbproc);
3475 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
3476 0 : CHECK_PARAMETER(dbproc->tds_socket, SYBEDDNE, 0);
3477 :
3478 : tds = dbproc->tds_socket;
3479 :
3480 0 : for (col = 0; col < tds->res_info->num_cols; col++) {
3481 0 : TDSCOLUMN *colinfo = tds->res_info->columns[col];
3482 0 : int collen = _get_printable_size(colinfo);
3483 0 : int namlen = (int) tds_dstr_len(&colinfo->column_name);
3484 :
3485 0 : len += TDS_MAX(collen, namlen);
3486 :
3487 0 : if (col > 0) /* allow for the space between columns */
3488 0 : len += dbstring_length(dbproc->dbopts[DBPRCOLSEP].param);
3489 : }
3490 :
3491 0 : return ++len; /* allow for the nul */
3492 : }
3493 :
3494 : /**
3495 : * \ingroup dblib_core
3496 : * \brief Print a regular result row to a buffer.
3497 : *
3498 : * Fills a buffer with one data row, represented as a null-terminated ASCII string. Helpful for debugging.
3499 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3500 : * \param buffer \em output: Address of a buffer to hold ASCII null-terminated string.
3501 : * \param buf_len size of \a buffer, in bytes.
3502 : * \retval SUCCEED on success.
3503 : * \retval FAIL trouble encountered.
3504 : * \sa dbclropt(), dbisopt(), dbprhead(), dbprrow(), dbspr1rowlen(), dbsprhead(), dbsprline().
3505 : */
3506 : RETCODE
3507 0 : dbspr1row(DBPROCESS * dbproc, char *buffer, DBINT buf_len)
3508 : {
3509 : TDSSOCKET *tds;
3510 : TDSDATEREC when;
3511 : int i, c, col;
3512 : DBINT len;
3513 :
3514 0 : tdsdump_log(TDS_DBG_FUNC, "dbspr1row(%p, %s, %d)\n", dbproc, buffer, buf_len);
3515 0 : CHECK_CONN(FAIL);
3516 0 : CHECK_NULP(buffer, "dbspr1row", 2, FAIL);
3517 :
3518 : if (!dbproc->tds_socket)
3519 : return FAIL;
3520 :
3521 : tds = dbproc->tds_socket;
3522 :
3523 0 : for (col = 0; col < tds->res_info->num_cols; col++) {
3524 : size_t padlen, collen, namlen;
3525 0 : TDSCOLUMN *colinfo = tds->res_info->columns[col];
3526 0 : if (colinfo->column_cur_size < 0) {
3527 0 : len = 4;
3528 0 : if (buf_len <= len) {
3529 : return FAIL;
3530 : }
3531 0 : strcpy(buffer, "NULL");
3532 : } else {
3533 : TDS_SERVER_TYPE desttype, srctype;
3534 :
3535 0 : desttype = dblib_bound_type(STRINGBIND);
3536 0 : srctype = tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
3537 0 : if (is_datetime_type(srctype)) {
3538 0 : tds_datecrack(srctype, dbdata(dbproc, col + 1), &when);
3539 0 : len = (int)tds_strftime(buffer, buf_len, STD_DATETIME_FMT, &when, 3);
3540 : } else {
3541 0 : len = dbconvert(dbproc, srctype, dbdata(dbproc, col + 1), dbdatlen(dbproc, col + 1),
3542 : desttype, (BYTE *) buffer, buf_len);
3543 : }
3544 0 : if (len == -1) {
3545 : return FAIL;
3546 : }
3547 : }
3548 0 : buffer += len;
3549 0 : buf_len -= len;
3550 0 : collen = _get_printable_size(colinfo);
3551 0 : namlen = tds_dstr_len(&colinfo->column_name);
3552 0 : padlen = TDS_MAX(collen, namlen) - len;
3553 0 : if ((c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0)) == -1) {
3554 0 : c = ' ';
3555 : }
3556 0 : for (; padlen > 0; padlen--) {
3557 0 : if (buf_len < 1) {
3558 : return FAIL;
3559 : }
3560 0 : *buffer++ = c;
3561 0 : buf_len--;
3562 : }
3563 0 : if ((col + 1) < tds->res_info->num_cols) {
3564 : i = 0;
3565 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i)) != -1) {
3566 0 : if (buf_len < 1) {
3567 : return FAIL;
3568 : }
3569 0 : *buffer++ = c;
3570 0 : buf_len--;
3571 0 : i++;
3572 : }
3573 : }
3574 : }
3575 0 : if (buf_len < 1) {
3576 : return FAIL;
3577 : }
3578 0 : *buffer = '\0';
3579 0 : return SUCCEED;
3580 : }
3581 :
3582 : /**
3583 : * \ingroup dblib_core
3584 : * \brief Print a result set to stdout.
3585 : *
3586 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3587 : * \sa dbbind(), dbnextrow(), dbprhead(), dbresults(), dbspr1row(), dbsprhead(), dbsprline().
3588 : */
3589 : RETCODE
3590 60 : dbprrow(DBPROCESS * dbproc)
3591 : {
3592 : TDSCOLUMN *colinfo;
3593 : TDSRESULTINFO *resinfo;
3594 : TDSSOCKET *tds;
3595 : int i, col;
3596 : size_t collen, namlen, len;
3597 : char dest[8192];
3598 : int desttype, srctype;
3599 : TDSDATEREC when;
3600 : STATUS status;
3601 : ptrdiff_t padlen;
3602 : int c;
3603 : int selcol;
3604 : int linechar;
3605 : int op;
3606 : const char *opname, *p;
3607 :
3608 : /* these are for compute rows */
3609 : DBINT computeid, num_cols, colid;
3610 60 : TDS_SMALLINT *col_printlens = NULL;
3611 :
3612 60 : tdsdump_log(TDS_DBG_FUNC, "dbprrow(%p)\n", dbproc);
3613 60 : CHECK_CONN(FAIL);
3614 :
3615 : tds = dbproc->tds_socket;
3616 :
3617 410 : while ((status = dbnextrow(dbproc)) != NO_MORE_ROWS) {
3618 :
3619 350 : if (status == FAIL) {
3620 0 : free(col_printlens);
3621 0 : return FAIL;
3622 : }
3623 :
3624 350 : if (status == REG_ROW) {
3625 :
3626 350 : resinfo = tds->res_info;
3627 :
3628 350 : if (col_printlens == NULL) {
3629 20 : if ((col_printlens = tds_new0(TDS_SMALLINT, resinfo->num_cols)) == NULL) {
3630 0 : dbperror(dbproc, SYBEMEM, errno);
3631 0 : return FAIL;
3632 : }
3633 : }
3634 :
3635 1750 : for (col = 0; col < resinfo->num_cols; col++) {
3636 1400 : colinfo = resinfo->columns[col];
3637 1400 : if (colinfo->column_cur_size < 0) {
3638 60 : len = 4;
3639 60 : strcpy(dest, "NULL");
3640 : } else {
3641 1340 : desttype = dblib_bound_type(STRINGBIND);
3642 1340 : srctype = tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
3643 1340 : if (is_datetime_type(srctype)) {
3644 0 : tds_datecrack(srctype, dbdata(dbproc, col + 1), &when);
3645 0 : len = (int)tds_strftime(dest, sizeof(dest), STD_DATETIME_FMT, &when, 3);
3646 : } else {
3647 1340 : len = dbconvert(dbproc, srctype, dbdata(dbproc, col + 1), dbdatlen(dbproc, col + 1),
3648 : desttype, (BYTE *) dest, sizeof(dest));
3649 : }
3650 : }
3651 :
3652 1400 : p = memchr(dest, '\0', len);
3653 1400 : fwrite(dest, 1, p == NULL ? len : (p - dest), stdout);
3654 1400 : collen = _get_printable_size(colinfo);
3655 2800 : namlen = tds_dstr_len(&colinfo->column_name);
3656 1400 : padlen = TDS_MAX(collen, namlen) - len;
3657 :
3658 2800 : c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0);
3659 10618 : for (; c > -1 && padlen > 0; padlen--) {
3660 9218 : putchar(c);
3661 : }
3662 :
3663 1400 : if ((col + 1) < resinfo->num_cols) {
3664 : i = 0;
3665 4200 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3666 : putchar(c);
3667 : }
3668 : }
3669 1400 : col_printlens[col] = collen;
3670 : }
3671 : i = 0;
3672 1400 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i++)) != -1) {
3673 : putchar(c);
3674 : }
3675 :
3676 0 : } else if (col_printlens == NULL) {
3677 : return FAIL;
3678 : } else {
3679 :
3680 : computeid = status;
3681 :
3682 0 : for (i = 0;; ++i) {
3683 0 : if ((TDS_UINT) i >= tds->num_comp_info) {
3684 0 : free(col_printlens);
3685 0 : return FAIL;
3686 : }
3687 0 : resinfo = tds->comp_info[i];
3688 0 : if (resinfo->computeid == computeid)
3689 : break;
3690 : }
3691 :
3692 0 : num_cols = dbnumalts(dbproc, computeid);
3693 0 : tdsdump_log(TDS_DBG_FUNC, "dbprrow num compute cols = %d\n", num_cols);
3694 :
3695 : i = 0;
3696 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i++)) != -1) {
3697 : putchar(c);
3698 : }
3699 0 : for (selcol = col = 1; col <= num_cols; col++) {
3700 0 : tdsdump_log(TDS_DBG_FUNC, "dbprrow calling dbaltcolid(%d,%d)\n", computeid, col);
3701 0 : colid = dbaltcolid(dbproc, computeid, col);
3702 : /*
3703 : * The pad character is pointed to by dbopts[DBPRPAD].param. If that pointer
3704 : * is NULL -- meaning padding is turned off -- dbstring_getchar returns -1.
3705 : */
3706 0 : while (selcol < colid) {
3707 0 : for (i = 0; i < col_printlens[selcol - 1]; i++) {
3708 0 : if ((c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0)) >= 0)
3709 : putchar(c);
3710 : }
3711 0 : selcol++;
3712 0 : i = 0;
3713 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3714 : putchar(c);
3715 : }
3716 : }
3717 0 : op = dbaltop(dbproc, computeid, col);
3718 0 : opname = dbprtype(op);
3719 0 : printf("%s", opname);
3720 0 : for (i = 0; i < (col_printlens[selcol - 1] - (int) strlen(opname)); i++) {
3721 0 : if ((c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0)) >= 0)
3722 : putchar(c);
3723 : }
3724 0 : selcol++;
3725 0 : if ((colid + 1) < num_cols) {
3726 : i = 0;
3727 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3728 : putchar(c);
3729 : }
3730 : }
3731 : }
3732 : i = 0;
3733 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i++)) != -1) {
3734 : putchar(c);
3735 : }
3736 :
3737 0 : for (selcol = col = 1; col <= num_cols; col++) {
3738 0 : tdsdump_log(TDS_DBG_FUNC, "dbprrow calling dbaltcolid(%d,%d)\n", computeid, col);
3739 0 : colid = dbaltcolid(dbproc, computeid, col);
3740 0 : while (selcol < colid) {
3741 0 : for (i = 0; i < col_printlens[selcol - 1]; i++) {
3742 0 : putchar(' ');
3743 : }
3744 0 : selcol++;
3745 0 : i = 0;
3746 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3747 : putchar(c);
3748 : }
3749 : }
3750 0 : if (resinfo->by_cols > 0) {
3751 : linechar = '-';
3752 : } else {
3753 0 : linechar = '=';
3754 : }
3755 0 : for (i = 0; i < col_printlens[colid - 1]; i++)
3756 0 : putchar(linechar);
3757 0 : selcol++;
3758 0 : if ((colid + 1) < num_cols) {
3759 : i = 0;
3760 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3761 : putchar(c);
3762 : }
3763 : }
3764 : }
3765 : i = 0;
3766 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i++)) != -1) {
3767 : putchar(c);
3768 : }
3769 :
3770 0 : for (selcol = col = 1; col <= num_cols; col++) {
3771 0 : colinfo = resinfo->columns[col - 1];
3772 :
3773 0 : desttype = dblib_bound_type(STRINGBIND);
3774 0 : srctype = dbalttype(dbproc, computeid, col);
3775 :
3776 0 : if (is_datetime_type(srctype)) {
3777 0 : tds_datecrack(srctype, dbadata(dbproc, computeid, col), &when);
3778 0 : len = (int)tds_strftime(dest, sizeof(dest), STD_DATETIME_FMT, &when, 3);
3779 : } else {
3780 0 : len = dbconvert(dbproc, srctype, dbadata(dbproc, computeid, col), -1, desttype,
3781 : (BYTE *) dest, sizeof(dest));
3782 : }
3783 :
3784 0 : tdsdump_log(TDS_DBG_FUNC, "dbprrow calling dbaltcolid(%d,%d)\n", computeid, col);
3785 0 : colid = dbaltcolid(dbproc, computeid, col);
3786 0 : tdsdump_log(TDS_DBG_FUNC, "dbprrow select column = %d\n", colid);
3787 :
3788 0 : while (selcol < colid) {
3789 0 : for (i = 0; i < col_printlens[selcol - 1]; i++) {
3790 0 : putchar(' ');
3791 : }
3792 0 : selcol++;
3793 0 : i = 0;
3794 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3795 : putchar(c);
3796 : }
3797 : }
3798 0 : p = memchr(dest, '\0', len);
3799 0 : fwrite(dest, 1, p == NULL ? len : (p - dest), stdout);
3800 0 : collen = _get_printable_size(colinfo);
3801 0 : namlen = tds_dstr_len(&colinfo->column_name);
3802 0 : padlen = TDS_MAX(collen, namlen) - len;
3803 0 : if ((c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0)) == -1) {
3804 0 : c = ' ';
3805 : }
3806 0 : for (; padlen > 0; padlen--) {
3807 0 : putchar(c);
3808 : }
3809 0 : selcol++;
3810 0 : if ((colid + 1) < num_cols) {
3811 : i = 0;
3812 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i++)) != -1) {
3813 : putchar(c);
3814 : }
3815 : }
3816 : }
3817 : i = 0;
3818 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i++)) != -1) {
3819 : putchar(c);
3820 : }
3821 : }
3822 : }
3823 :
3824 60 : free(col_printlens);
3825 :
3826 60 : return SUCCEED;
3827 : }
3828 :
3829 : static int
3830 1560 : _get_printable_size(TDSCOLUMN * colinfo)
3831 : {
3832 1560 : switch (tds_get_conversion_type(colinfo->column_type, colinfo->column_size)) {
3833 : case SYBUINT1:
3834 : case SYBINT1:
3835 : return 3;
3836 0 : case SYBSINT1:
3837 0 : return 4;
3838 0 : case SYBUINT2:
3839 0 : return 5;
3840 522 : case SYBINT2:
3841 522 : return 6;
3842 0 : case SYBUINT4:
3843 0 : return 10;
3844 258 : case SYBINT4:
3845 258 : return 11;
3846 0 : case SYBUINT8:
3847 0 : return 20;
3848 0 : case SYBINT8:
3849 0 : return 21;
3850 780 : case SYBVARCHAR:
3851 : case SYBCHAR:
3852 : case SYBTEXT:
3853 : case SYBNTEXT:
3854 : case SYBUNITEXT:
3855 : case SYBNVARCHAR:
3856 : case SYBLONGCHAR:
3857 780 : return colinfo->column_size;
3858 0 : case SYBBINARY:
3859 : case SYBIMAGE:
3860 : case SYBLONGBINARY:
3861 : case SYBVARBINARY:
3862 0 : return colinfo->column_size * 2u;
3863 0 : case SYBREAL:
3864 0 : return 14; /* FIX ME -- we do not track precision */
3865 0 : case SYBFLT8:
3866 0 : return 24; /* FIX ME -- we do not track precision */
3867 0 : case SYBMONEY4:
3868 0 : return 12;
3869 0 : case SYBMONEY:
3870 0 : return 22;
3871 0 : case SYB5BIGDATETIME:
3872 : case SYBDATETIME:
3873 : case SYBDATETIME4:
3874 0 : return 26;
3875 0 : case SYBTIME:
3876 : case SYB5BIGTIME:
3877 0 : return 15;
3878 0 : case SYBMSTIME:
3879 0 : return 16;
3880 0 : case SYBDATE:
3881 : case SYBMSDATE:
3882 0 : return 10;
3883 0 : case SYBMSDATETIME2:
3884 0 : return 27;
3885 0 : case SYBMSDATETIMEOFFSET:
3886 0 : return 33;
3887 0 : case SYBUNIQUE:
3888 0 : return 36;
3889 0 : case SYBBIT:
3890 0 : return 1;
3891 0 : case SYBNUMERIC:
3892 : case SYBDECIMAL:
3893 0 : return colinfo->column_prec + 2;
3894 : /* FIX ME -- not all types present */
3895 0 : case SYBVOID: /* or 4 bytes for "null" ? */
3896 : default:
3897 0 : return 0;
3898 : }
3899 : }
3900 :
3901 : /**
3902 : * \ingroup dblib_core
3903 : * \brief Get formatted string for underlining dbsprhead() column names.
3904 : *
3905 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3906 : * \param buffer output buffer
3907 : * \param buf_len size of \a buffer
3908 : * \param line_char character to use to represent underlining.
3909 : * \retval SUCCEED \a buffer filled.
3910 : * \retval FAIL insufficient space in \a buffer, usually.
3911 : * \sa dbprhead(), dbprrow(), dbspr1row(), dbspr1rowlen(), dbsprhead().
3912 : */
3913 : RETCODE
3914 0 : dbsprline(DBPROCESS * dbproc, char *buffer, DBINT buf_len, DBCHAR line_char)
3915 : {
3916 : TDSCOLUMN *colinfo;
3917 : TDSRESULTINFO *resinfo;
3918 : TDSSOCKET *tds;
3919 : size_t i, col, len, collen, namlen;
3920 : int c;
3921 :
3922 0 : tdsdump_log(TDS_DBG_FUNC, "dbsprline(%p, %s, %d, '%c')\n", dbproc, buffer, buf_len, line_char);
3923 0 : CHECK_CONN(FAIL);
3924 0 : CHECK_NULP(buffer, "dbsprline", 2, FAIL);
3925 :
3926 0 : tds = dbproc->tds_socket;
3927 0 : resinfo = tds->res_info;
3928 :
3929 0 : for (col = 0; col < resinfo->num_cols; col++) {
3930 0 : colinfo = resinfo->columns[col];
3931 0 : collen = _get_printable_size(colinfo);
3932 0 : namlen = tds_dstr_len(&colinfo->column_name);
3933 0 : len = TDS_MAX(collen, namlen);
3934 0 : for (i = 0; i < len; i++) {
3935 0 : if (buf_len < 1) {
3936 : return FAIL;
3937 : }
3938 0 : *buffer++ = line_char;
3939 0 : buf_len--;
3940 : }
3941 0 : if ((col + 1) < resinfo->num_cols) {
3942 : i = 0;
3943 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i)) != -1) {
3944 0 : if (buf_len < 1) {
3945 : return FAIL;
3946 : }
3947 0 : *buffer++ = c;
3948 0 : buf_len--;
3949 0 : i++;
3950 : }
3951 : }
3952 : }
3953 0 : if (buf_len < 1) {
3954 : return FAIL;
3955 : }
3956 0 : *buffer = '\0';
3957 0 : return SUCCEED;
3958 : }
3959 :
3960 : /**
3961 : * \ingroup dblib_core
3962 : * \brief Print result set headings to a buffer.
3963 : *
3964 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
3965 : * \param buffer output buffer
3966 : * \param buf_len size of \a buffer
3967 : * \retval SUCCEED \a buffer filled.
3968 : * \retval FAIL insufficient space in \a buffer, usually.
3969 : * \sa dbprhead(), dbprrow(), dbsetopt(), dbspr1row(), dbspr1rowlen(), dbsprline().
3970 : */
3971 : RETCODE
3972 0 : dbsprhead(DBPROCESS * dbproc, char *buffer, DBINT buf_len)
3973 : {
3974 : TDSCOLUMN *colinfo;
3975 : TDSRESULTINFO *resinfo;
3976 : TDSSOCKET *tds;
3977 : int i, collen, namlen;
3978 : TDS_USMALLINT col;
3979 : int padlen;
3980 : int c;
3981 :
3982 0 : tdsdump_log(TDS_DBG_FUNC, "dbsprhead(%p, %p, %d)\n", dbproc, buffer, buf_len);
3983 0 : CHECK_CONN(FAIL);
3984 0 : CHECK_NULP(buffer, "dbsprhead", 2, FAIL);
3985 :
3986 0 : tds = dbproc->tds_socket;
3987 0 : resinfo = tds->res_info;
3988 :
3989 0 : for (col = 0; col < resinfo->num_cols; col++) {
3990 0 : colinfo = resinfo->columns[col];
3991 0 : collen = _get_printable_size(colinfo);
3992 0 : namlen = (int) tds_dstr_len(&colinfo->column_name);
3993 0 : padlen = TDS_MAX(collen, namlen) - namlen;
3994 0 : if (buf_len < namlen) {
3995 : return FAIL;
3996 : }
3997 0 : memcpy(buffer, tds_dstr_cstr(&colinfo->column_name), namlen);
3998 0 : buffer += namlen;
3999 0 : buf_len -= namlen;
4000 0 : if ((c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0)) == -1) {
4001 0 : c = ' ';
4002 : }
4003 0 : for (; padlen > 0; padlen--) {
4004 0 : if (buf_len < 1) {
4005 : return FAIL;
4006 : }
4007 0 : *buffer++ = c;
4008 0 : buf_len--;
4009 : }
4010 0 : if ((col + 1) < resinfo->num_cols) {
4011 : i = 0;
4012 0 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i)) != -1) {
4013 0 : if (buf_len < 1) {
4014 : return FAIL;
4015 : }
4016 0 : *buffer++ = c;
4017 0 : buf_len--;
4018 0 : i++;
4019 : }
4020 : }
4021 : }
4022 0 : if (buf_len < 1) {
4023 : return FAIL;
4024 : }
4025 0 : *buffer = '\0';
4026 0 : return SUCCEED;
4027 : }
4028 :
4029 : /**
4030 : * \ingroup dblib_core
4031 : * \brief Print result set headings to stdout.
4032 : *
4033 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4034 : * \sa
4035 : */
4036 : void
4037 60 : dbprhead(DBPROCESS * dbproc)
4038 : {
4039 : TDSCOLUMN *colinfo;
4040 : TDSRESULTINFO *resinfo;
4041 : TDSSOCKET *tds;
4042 : size_t i, col, len, collen, namlen;
4043 : size_t padlen;
4044 : int c;
4045 :
4046 60 : tdsdump_log(TDS_DBG_FUNC, "dbprhead(%p)\n", dbproc);
4047 60 : CHECK_PARAMETER(dbproc, SYBENULL, );
4048 :
4049 60 : tds = dbproc->tds_socket;
4050 60 : resinfo = tds->res_info;
4051 60 : if (resinfo == NULL) {
4052 : return;
4053 : }
4054 100 : for (col = 0; col < resinfo->num_cols; col++) {
4055 80 : colinfo = resinfo->columns[col];
4056 80 : collen = _get_printable_size(colinfo);
4057 160 : namlen = tds_dstr_len(&colinfo->column_name);
4058 80 : padlen = TDS_MAX(collen, namlen) - namlen;
4059 160 : printf("%s", tds_dstr_cstr(&colinfo->column_name));
4060 :
4061 160 : c = dbstring_getchar(dbproc->dbopts[DBPRPAD].param, 0);
4062 80 : if (c == -1) {
4063 0 : c = ' ';
4064 : }
4065 600 : for (; padlen > 0; padlen--) {
4066 600 : putchar(c);
4067 : }
4068 :
4069 80 : if ((col + 1) < resinfo->num_cols) {
4070 : i = 0;
4071 240 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i)) != -1) {
4072 60 : putchar(c);
4073 60 : i++;
4074 : }
4075 : }
4076 : }
4077 : i = 0;
4078 80 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i)) != -1) {
4079 20 : putchar(c);
4080 20 : i++;
4081 : }
4082 100 : for (col = 0; col < resinfo->num_cols; col++) {
4083 80 : colinfo = resinfo->columns[col];
4084 80 : collen = _get_printable_size(colinfo);
4085 160 : namlen = tds_dstr_len(&colinfo->column_name);
4086 80 : len = TDS_MAX(collen, namlen);
4087 1040 : for (i = 0; i < len; i++)
4088 960 : putchar('-');
4089 80 : if ((col + 1) < resinfo->num_cols) {
4090 : i = 0;
4091 240 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRCOLSEP].param, i)) != -1) {
4092 60 : putchar(c);
4093 60 : i++;
4094 : }
4095 : }
4096 : }
4097 : i = 0;
4098 80 : while ((c = dbstring_getchar(dbproc->dbopts[DBPRLINESEP].param, i)) != -1) {
4099 20 : putchar(c);
4100 20 : i++;
4101 : }
4102 : }
4103 :
4104 : /** \internal
4105 : * \ingroup dblib_internal
4106 : * \brief Indicate whether a query returned rows.
4107 : *
4108 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4109 : * \sa DBROWS(), DBCMDROW(), dbnextrow(), dbresults(), DBROWTYPE().
4110 : */
4111 : RETCODE
4112 522 : dbrows(DBPROCESS * dbproc)
4113 : {
4114 : TDSSOCKET *tds;
4115 :
4116 522 : tdsdump_log(TDS_DBG_FUNC, "dbrows(%p)\n", dbproc);
4117 522 : CHECK_CONN(FAIL);
4118 :
4119 522 : if (!(tds=dbproc->tds_socket))
4120 : return FAIL;
4121 :
4122 522 : return (tds->res_info && tds->res_info->rows_exist)? SUCCEED : FAIL;
4123 : }
4124 :
4125 : #if defined(DBLIB_UNIMPLEMENTED)
4126 : /**
4127 : * \ingroup dblib_core
4128 : * \brief Set the default character set for an application.
4129 : *
4130 : * \param language ASCII null-terminated string.
4131 : * \sa dbsetdeflang(), dbsetdefcharset(), dblogin(), dbopen().
4132 : * \retval SUCCEED Always.
4133 : * \todo Unimplemented.
4134 : */
4135 : RETCODE
4136 : dbsetdeflang(char *language)
4137 : {
4138 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetdeflang(%s)\n", language);
4139 : CHECK_PARAMETER_NOPROC(language, SYBENULP);
4140 : return SUCCEED;
4141 : }
4142 : #endif
4143 :
4144 : /**
4145 : * \ingroup dblib_core
4146 : * \brief Get TDS packet size for the connection.
4147 : *
4148 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4149 : * \return TDS packet size, in bytes.
4150 : * \sa DBSETLPACKET()
4151 : */
4152 : int
4153 0 : dbgetpacket(DBPROCESS * dbproc)
4154 : {
4155 : TDSSOCKET *tds;
4156 :
4157 0 : tdsdump_log(TDS_DBG_FUNC, "dbgetpacket(%p)\n", dbproc);
4158 0 : CHECK_PARAMETER(dbproc, SYBENULL, TDS_DEF_BLKSZ);
4159 :
4160 0 : tds = dbproc->tds_socket;
4161 0 : if (!tds) {
4162 : return TDS_DEF_BLKSZ;
4163 : } else {
4164 0 : return tds->conn->env.block_size;
4165 : }
4166 : }
4167 :
4168 : /**
4169 : * \ingroup dblib_core
4170 : * \brief Set maximum simultaneous connections db-lib will open to the server.
4171 : *
4172 : * \param maxprocs Limit for process.
4173 : * \retval SUCCEED Always.
4174 : * \sa dbgetmaxprocs(), dbopen()
4175 : */
4176 : RETCODE
4177 250 : dbsetmaxprocs(int maxprocs)
4178 : {
4179 : int i, j;
4180 : TDSSOCKET **old_list;
4181 :
4182 250 : tdsdump_log(TDS_DBG_FUNC, "UNTESTED dbsetmaxprocs(%d)\n", maxprocs);
4183 :
4184 : /* not too few elements */
4185 250 : if (maxprocs <= 0)
4186 : return FAIL;
4187 :
4188 250 : tds_mutex_lock(&dblib_mutex);
4189 :
4190 250 : old_list = g_dblib_ctx.connection_list;
4191 :
4192 : /* "compress" array */
4193 1024250 : for (i = 0, j = 0; i < g_dblib_ctx.connection_list_size; ++i) {
4194 1024000 : if (!old_list[i])
4195 1024000 : continue;
4196 0 : if (i != j) {
4197 0 : old_list[j] = old_list[i];
4198 0 : old_list[i] = NULL;
4199 : }
4200 0 : ++j;
4201 : }
4202 : /* do not restrict too much, j here contains minimun size */
4203 250 : if (maxprocs < j)
4204 0 : maxprocs = j;
4205 :
4206 : /*
4207 : * Don't reallocate less memory.
4208 : * If maxprocs is less than was initially allocated, just reduce the represented list size.
4209 : * If larger, reallocate and copy.
4210 : * We probably should check for valid connections beyond the new max.
4211 : */
4212 250 : if (maxprocs <= g_dblib_ctx.connection_list_size) {
4213 250 : g_dblib_ctx.connection_list_size_represented = maxprocs;
4214 250 : tds_mutex_unlock(&dblib_mutex);
4215 250 : return SUCCEED;
4216 : }
4217 :
4218 0 : g_dblib_ctx.connection_list = tds_new0(TDSSOCKET *, maxprocs);
4219 :
4220 0 : if (g_dblib_ctx.connection_list == NULL) {
4221 0 : g_dblib_ctx.connection_list = old_list;
4222 0 : tds_mutex_unlock(&dblib_mutex);
4223 0 : dbperror(NULL, SYBEMEM, errno);
4224 0 : return FAIL;
4225 : }
4226 :
4227 0 : for (i = 0; i < g_dblib_ctx.connection_list_size; i++) {
4228 0 : g_dblib_ctx.connection_list[i] = old_list[i];
4229 : }
4230 :
4231 0 : g_dblib_ctx.connection_list_size = maxprocs;
4232 0 : g_dblib_ctx.connection_list_size_represented = maxprocs;
4233 :
4234 0 : tds_mutex_unlock(&dblib_mutex);
4235 :
4236 0 : free(old_list);
4237 :
4238 0 : return SUCCEED;
4239 : }
4240 :
4241 : /**
4242 : * \ingroup dblib_core
4243 : * \brief get maximum simultaneous connections db-lib will open to the server.
4244 : *
4245 : * \return Current maximum.
4246 : * \sa dbsetmaxprocs(), dbopen()
4247 : */
4248 : int
4249 0 : dbgetmaxprocs(void)
4250 : {
4251 : int r;
4252 :
4253 0 : tdsdump_log(TDS_DBG_FUNC, "dbgetmaxprocs(void)\n");
4254 :
4255 0 : tds_mutex_lock(&dblib_mutex);
4256 0 : r = g_dblib_ctx.connection_list_size_represented;
4257 0 : tds_mutex_unlock(&dblib_mutex);
4258 0 : return r;
4259 : }
4260 :
4261 : /**
4262 : * \ingroup dblib_core
4263 : * \brief Set maximum seconds db-lib waits for a server response to query.
4264 : *
4265 : * \param seconds New limit for application.
4266 : * \retval SUCCEED Always.
4267 : * \sa dberrhandle(), DBGETTIME(), dbsetlogintime(), dbsqlexec(), dbsqlok(), dbsqlsend().
4268 : */
4269 : RETCODE
4270 70 : dbsettime(int seconds)
4271 : {
4272 : TDSSOCKET **tds;
4273 : int i;
4274 : DBPROCESS *dbproc;
4275 70 : tdsdump_log(TDS_DBG_FUNC, "dbsettime(%d)\n", seconds);
4276 :
4277 70 : tds_mutex_lock(&dblib_mutex);
4278 70 : g_dblib_ctx.query_timeout = seconds;
4279 :
4280 70 : tds = g_dblib_ctx.connection_list;
4281 286790 : for (i = 0; i < TDS_MAX_CONN; i++) {
4282 286720 : if (tds[i]) {
4283 100 : dbproc = (DBPROCESS *) tds_get_parent(tds[i]);
4284 100 : if (!dbisopt(dbproc, DBSETTIME, 0))
4285 80 : tds[i]->query_timeout = seconds;
4286 : }
4287 : }
4288 :
4289 70 : tds_mutex_unlock(&dblib_mutex);
4290 70 : return SUCCEED;
4291 : }
4292 :
4293 : /**
4294 : * \ingroup dblib_core
4295 : * \brief Get maximum seconds db-lib waits for a server response to query.
4296 : *
4297 : * \retval query timeout limit, in seconds
4298 : * \sa dberrhandle(), DBSETTIME(), dbsetlogintime(), dbsqlexec(), dbsqlok(), dbsqlsend().
4299 : */
4300 : int
4301 0 : dbgettime(void)
4302 : {
4303 0 : tdsdump_log(TDS_DBG_FUNC, "dbgettime()\n");
4304 :
4305 0 : return g_dblib_ctx.query_timeout;
4306 : }
4307 :
4308 : /**
4309 : * \ingroup dblib_core
4310 : * \brief Set maximum seconds db-lib waits for a server response to a login attempt.
4311 : *
4312 : * \param seconds New limit for application.
4313 : * \retval SUCCEED Always.
4314 : * \sa dberrhandle(), dbsettime()
4315 : */
4316 : RETCODE
4317 20 : dbsetlogintime(int seconds)
4318 : {
4319 20 : tdsdump_log(TDS_DBG_FUNC, "dbsetlogintime(%d)\n", seconds);
4320 :
4321 20 : tds_mutex_lock(&dblib_mutex);
4322 20 : g_dblib_ctx.login_timeout = seconds;
4323 20 : tds_mutex_unlock(&dblib_mutex);
4324 20 : return SUCCEED;
4325 : }
4326 :
4327 : /** \internal
4328 : * \ingroup dblib_internal
4329 : * \brief See if the current command can return rows.
4330 : *
4331 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4332 : * \retval SUCCEED Yes, it can.
4333 : * \retval FAIL No, it can't.
4334 : * \remarks Use DBCMDROW() macro instead.
4335 : * \sa DBCMDROW(), dbnextrow(), dbresults(), DBROWS(), DBROWTYPE().
4336 : */
4337 : RETCODE
4338 0 : dbcmdrow(DBPROCESS * dbproc)
4339 : {
4340 : TDSSOCKET *tds;
4341 :
4342 0 : tdsdump_log(TDS_DBG_FUNC, "dbcmdrow(%p)\n", dbproc);
4343 0 : CHECK_CONN(FAIL);
4344 :
4345 0 : tds = dbproc->tds_socket;
4346 0 : if (tds->res_info)
4347 : return SUCCEED;
4348 0 : return FAIL;
4349 : }
4350 :
4351 : /**
4352 : * \ingroup dblib_core
4353 : * \brief Get column ID of a compute column.
4354 : *
4355 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4356 : * \param computeid of \c COMPUTE clause to which we're referring.
4357 : * \param column Nth column in \a computeid, starting from 1.
4358 : * \return Nth column in the base result set, on which \a column was computed.
4359 : * \sa dbadata(), dbadlen(), dbaltlen(), dbgetrow(), dbnextrow(), dbnumalts(), dbprtype().
4360 : */
4361 : int
4362 16 : dbaltcolid(DBPROCESS * dbproc, int computeid, int column)
4363 : {
4364 : TDSCOLUMN *curcol;
4365 :
4366 16 : tdsdump_log(TDS_DBG_FUNC, "dbaltcolid(%p, %d, %d)\n", dbproc, computeid, column);
4367 :
4368 16 : curcol = dbacolptr(dbproc, computeid, column, false);
4369 16 : if (!curcol)
4370 : return -1;
4371 :
4372 16 : return curcol->column_operand;
4373 : }
4374 :
4375 : /**
4376 : * \ingroup dblib_core
4377 : * \brief Get size of data in a compute column.
4378 : *
4379 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4380 : * \param computeid of \c COMPUTE clause to which we're referring.
4381 : * \param column Nth column in \a computeid, starting from 1.
4382 : * \return size of the data, in bytes.
4383 : * \retval -1 no such \a column or \a computeid.
4384 : * \retval 0 data are NULL.
4385 : * \sa dbadata(), dbaltlen(), dbalttype(), dbgetrow(), dbnextrow(), dbnumalts().
4386 : */
4387 : DBINT
4388 0 : dbadlen(DBPROCESS * dbproc, int computeid, int column)
4389 : {
4390 : TDSCOLUMN *colinfo;
4391 : DBINT len;
4392 :
4393 0 : tdsdump_log(TDS_DBG_FUNC, "dbadlen(%p, %d, %d)\n", dbproc, computeid, column);
4394 :
4395 0 : colinfo = dbacolptr(dbproc, computeid, column, false);
4396 0 : if (!colinfo)
4397 : return -1;
4398 :
4399 0 : len = TDS_MAX(colinfo->column_cur_size, 0);
4400 :
4401 0 : tdsdump_log(TDS_DBG_FUNC, "leaving dbadlen() type = %d, returning %d\n", colinfo->column_type, len);
4402 :
4403 : return len;
4404 : }
4405 :
4406 : /**
4407 : * \ingroup dblib_core
4408 : * \brief Get datatype for a compute column.
4409 : *
4410 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4411 : * \param computeid of \c COMPUTE clause to which we're referring.
4412 : * \param column Nth column in \a computeid, starting from 1.
4413 : * \return \c SYB* dataype token.
4414 : * \retval -1 no such \a column or \a computeid.
4415 : * \sa dbadata(), dbadlen(), dbaltlen(), dbnextrow(), dbnumalts(), dbprtype().
4416 : */
4417 : int
4418 16 : dbalttype(DBPROCESS * dbproc, int computeid, int column)
4419 : {
4420 : TDSCOLUMN *colinfo;
4421 :
4422 16 : tdsdump_log(TDS_DBG_FUNC, "dbalttype(%p, %d, %d)\n", dbproc, computeid, column);
4423 :
4424 16 : colinfo = dbacolptr(dbproc, computeid, column, false);
4425 16 : if (!colinfo)
4426 : return -1;
4427 :
4428 16 : return dblib_coltype(colinfo);
4429 : }
4430 :
4431 : /**
4432 : * \ingroup dblib_core
4433 : * \brief Bind a compute column to a program variable.
4434 : *
4435 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4436 : * \param computeid of \c COMPUTE clause to which we're referring.
4437 : * \param column Nth column in \a computeid, starting from 1.
4438 : * \param vartype datatype of the host variable that will receive the data
4439 : * \param varlen size of host variable pointed to \a varaddr
4440 : * \param varaddr address of host variable
4441 : * \retval SUCCEED everything worked.
4442 : * \retval FAIL no such \a computeid or \a column, or no such conversion possible, or target buffer too small.
4443 : * \sa dbadata(), dbaltbind_ps(), dbanullbind(), dbbind(), dbbind_ps(), dbconvert(),
4444 : * dbconvert_ps(), dbnullbind(), dbsetnull(), dbsetversion(), dbwillconvert().
4445 : */
4446 : RETCODE
4447 16 : dbaltbind(DBPROCESS * dbproc, int computeid, int column, int vartype, DBINT varlen, BYTE * varaddr)
4448 : {
4449 : TDS_SERVER_TYPE srctype, desttype;
4450 16 : TDSCOLUMN *colinfo = NULL;
4451 :
4452 16 : tdsdump_log(TDS_DBG_FUNC, "dbaltbind(%p, %d, %d, %d, %d, %p)\n", dbproc, computeid, column, vartype, varlen, varaddr);
4453 :
4454 16 : colinfo = dbacolptr(dbproc, computeid, column, true);
4455 16 : if (!colinfo)
4456 : return FAIL;
4457 16 : CHECK_PARAMETER(varaddr, SYBEABNV, FAIL);
4458 :
4459 16 : dbproc->avail_flag = FALSE;
4460 :
4461 16 : srctype = tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
4462 16 : desttype = dblib_bound_type(vartype);
4463 16 : if (desttype == TDS_INVALID_TYPE) {
4464 0 : dbperror(dbproc, SYBEBTYP, 0);
4465 0 : return FAIL;
4466 : }
4467 :
4468 16 : if (!dbwillconvert(srctype, desttype)) {
4469 0 : dbperror(dbproc, SYBEAAMT, 0);
4470 0 : return FAIL;
4471 : }
4472 :
4473 16 : colinfo->column_varaddr = (char *) varaddr;
4474 16 : colinfo->column_bindtype = vartype;
4475 16 : colinfo->column_bindlen = varlen;
4476 :
4477 16 : return SUCCEED;
4478 : }
4479 :
4480 :
4481 : /**
4482 : * \ingroup dblib_core
4483 : * \brief Get address of compute column data.
4484 : *
4485 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4486 : * \param computeid of \c COMPUTE clause to which we're referring.
4487 : * \param column Nth column in \a computeid, starting from 1.
4488 : * \return pointer to columns's data buffer.
4489 : * \retval NULL no such \a computeid or \a column.
4490 : * \sa dbadlen(), dbaltbind(), dbaltlen(), dbalttype(), dbgetrow(), dbnextrow(), dbnumalts().
4491 : */
4492 : BYTE *
4493 0 : dbadata(DBPROCESS * dbproc, int computeid, int column)
4494 : {
4495 : TDSCOLUMN *colinfo;
4496 :
4497 0 : tdsdump_log(TDS_DBG_FUNC, "dbadata(%p, %d, %d)\n", dbproc, computeid, column);
4498 :
4499 0 : colinfo = dbacolptr(dbproc, computeid, column, false);
4500 0 : if (!colinfo)
4501 : return NULL;
4502 :
4503 0 : if (is_blob_col(colinfo)) {
4504 0 : return (BYTE *) ((TDSBLOB *) colinfo->column_data)->textvalue;
4505 : }
4506 :
4507 0 : return (BYTE *) colinfo->column_data;
4508 : }
4509 :
4510 : /**
4511 : * \ingroup dblib_core
4512 : * \brief Get aggregation operator for a compute column.
4513 : *
4514 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4515 : * \param computeid of \c COMPUTE clause to which we're referring.
4516 : * \param column Nth column in \a computeid, starting from 1.
4517 : * \return token value for the type of the compute column's aggregation operator.
4518 : * \retval -1 no such \a computeid or \a column.
4519 : * \sa dbadata(), dbadlen(), dbaltlen(), dbnextrow(), dbnumalts(), dbprtype().
4520 : */
4521 : int
4522 16 : dbaltop(DBPROCESS * dbproc, int computeid, int column)
4523 : {
4524 : TDSCOLUMN *curcol;
4525 :
4526 16 : tdsdump_log(TDS_DBG_FUNC, "dbaltop(%p, %d, %d)\n", dbproc, computeid, column);
4527 :
4528 16 : if ((curcol=dbacolptr(dbproc, computeid, column, false)) == NULL)
4529 : return -1;
4530 :
4531 16 : return curcol->column_operator;
4532 : }
4533 :
4534 : /**
4535 : * \ingroup dblib_core
4536 : * \brief Set db-lib or server option.
4537 : *
4538 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4539 : * \param option option to set.
4540 : * \param char_param value to set \a option to, if it wants a null-teminated ASCII string.
4541 : * \param int_param value to set \a option to, if it wants an integer value.
4542 : * \retval SUCCEED everything worked.
4543 : * \retval FAIL no such \a option, or insufficient memory, or unimplemented.
4544 : * \remarks Many are unimplemented.
4545 : * \sa dbclropt(), dbisopt().
4546 : * \todo Implement more options.
4547 : */
4548 : RETCODE
4549 90 : dbsetopt(DBPROCESS * dbproc, int option, const char *char_param, int int_param)
4550 : {
4551 : char *cmd;
4552 : RETCODE rc;
4553 : int i;
4554 :
4555 90 : tdsdump_log(TDS_DBG_FUNC, "dbsetopt(%p, %d, %s, %d)\n", dbproc, option, char_param, int_param);
4556 90 : CHECK_CONN(FAIL);
4557 90 : CHECK_NULP(char_param, "dbsetopt", 3, FAIL);
4558 :
4559 90 : if ((option < 0) || (option >= DBNUMOPTIONS)) {
4560 0 : dbperror(dbproc, SYBEUNOP, 0);
4561 0 : return FAIL;
4562 : }
4563 :
4564 90 : rc = FAIL;
4565 90 : switch (option) {
4566 0 : case DBARITHABORT:
4567 : case DBARITHIGNORE:
4568 : case DBCHAINXACTS:
4569 : case DBFIPSFLAG:
4570 : case DBISOLATION:
4571 : case DBNOCOUNT:
4572 : case DBNOEXEC:
4573 : case DBPARSEONLY:
4574 : case DBSHOWPLAN:
4575 : case DBSTORPROCID:
4576 : case DBQUOTEDIDENT:
4577 : /* server options (on/off) */
4578 0 : if (asprintf(&cmd, "set %s on\n", dbproc->dbopts[option].text) < 0) {
4579 : return FAIL;
4580 : }
4581 0 : rc = dbstring_concat(&(dbproc->dboptcmd), cmd);
4582 0 : free(cmd);
4583 0 : break;
4584 0 : case DBNATLANG:
4585 : case DBDATEFIRST:
4586 : case DBDATEFORMAT:
4587 : /* server options (char_param) */
4588 0 : if (asprintf(&cmd, "set %s %s\n", dbproc->dbopts[option].text, char_param) < 0) {
4589 : return FAIL;
4590 : }
4591 0 : rc = dbstring_concat(&(dbproc->dboptcmd), cmd);
4592 0 : free(cmd);
4593 0 : break;
4594 : case DBOFFSET:
4595 : /* server option */
4596 : /* requires param
4597 : * "select", "from", "table", "order", "compute",
4598 : * "statement", "procedure", "execute", or "param"
4599 : */
4600 : rc = SUCCEED;
4601 : break;
4602 : case DBROWCOUNT:
4603 : /* server option */
4604 : /* requires param "0" to "2147483647" */
4605 : rc = SUCCEED;
4606 : break;
4607 : case DBSTAT:
4608 : /* server option */
4609 : /* requires param "io" or "time" */
4610 : rc = SUCCEED;
4611 : break;
4612 : case DBTEXTLIMIT:
4613 : /* dblib option */
4614 : /* requires param "0" to "2147483647" */
4615 : /* dblib do not return more than this length from text/image */
4616 : /* TODO required for PHP */
4617 : rc = SUCCEED;
4618 : break;
4619 : case DBTEXTSIZE:
4620 : /* server option */
4621 : /* requires param "0" to "2147483647" */
4622 : /* limit text/image from network */
4623 : if (!char_param)
4624 : char_param = "0";
4625 0 : i = atoi(char_param);
4626 0 : if (i < 0 || i > 2147483647)
4627 : return FAIL;
4628 0 : if (asprintf(&cmd, "set textsize %d\n", i) < 0)
4629 : return FAIL;
4630 0 : rc = dbstring_concat(&(dbproc->dboptcmd), cmd);
4631 0 : free(cmd);
4632 0 : break;
4633 : case DBAUTH:
4634 : /* ??? */
4635 : rc = SUCCEED;
4636 : break;
4637 : case DBNOAUTOFREE:
4638 : /* dblib option */
4639 : rc = SUCCEED;
4640 : break;
4641 : case DBBUFFER:
4642 : /*
4643 : * Requires param "2" to "2147483647"
4644 : * (0 or 1 is an error, < 0 yields the default 100)
4645 : */
4646 : {
4647 : int nrows;
4648 :
4649 : /* 100 is the default, according to Microsoft */
4650 : if( !char_param )
4651 : char_param = "100";
4652 :
4653 60 : nrows = atoi(char_param);
4654 :
4655 60 : nrows = (nrows < 0 )? 100 : nrows;
4656 :
4657 60 : if( 1 < nrows && nrows <= 2147483647 ) {
4658 60 : buffer_set_capacity(dbproc, nrows);
4659 60 : rc = SUCCEED;
4660 : }
4661 : }
4662 : break;
4663 0 : case DBPRCOLSEP:
4664 : case DBPRLINELEN:
4665 : case DBPRLINESEP:
4666 0 : rc = dbstring_assign(&(dbproc->dbopts[option].param), char_param);
4667 0 : break;
4668 0 : case DBPRPAD:
4669 : /*
4670 : * "If the character is not specified, the ASCII space character is used."
4671 : * A NULL pointer to the pad character signifies that padding is turned off.
4672 : */
4673 0 : if (int_param) {
4674 0 : rc = dbstring_assign(&(dbproc->dbopts[option].param), char_param? char_param : " ");
4675 : } else {
4676 0 : rc = dbstring_assign(&(dbproc->dbopts[option].param), NULL);
4677 : }
4678 : break;
4679 : case DBSETTIME:
4680 : if (char_param) {
4681 30 : i = atoi(char_param);
4682 30 : if (0 < i) {
4683 60 : rc = dbstring_assign(&(dbproc->dbopts[option].param), char_param);
4684 30 : if (rc == SUCCEED) {
4685 30 : dbproc->tds_socket->query_timeout = i;
4686 : }
4687 : }
4688 : }
4689 : break;
4690 0 : default:
4691 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetopt(option = %d)\n", option);
4692 : return FAIL;
4693 : }
4694 30 : if (rc == SUCCEED)
4695 90 : dbproc->dbopts[option].factive = 1;
4696 : return rc;
4697 : }
4698 :
4699 : /**
4700 : * \ingroup dblib_core
4701 : * \brief Set interrupt handler for db-lib to use while blocked against a read from the server.
4702 : *
4703 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4704 : * \param chkintr
4705 : * \param hndlintr
4706 : * \sa dbcancel(), dbgetuserdata(), dbsetuserdata(), dbsetbusy(), dbsetidle().
4707 : */
4708 : void
4709 20 : dbsetinterrupt(DBPROCESS * dbproc, DB_DBCHKINTR_FUNC chkintr, DB_DBHNDLINTR_FUNC hndlintr)
4710 : {
4711 20 : tdsdump_log(TDS_DBG_FUNC, "dbsetinterrupt(%p, %p, %p)\n", dbproc, chkintr, hndlintr);
4712 20 : CHECK_PARAMETER(dbproc, SYBENULL, );
4713 :
4714 20 : dbproc->chkintr = chkintr;
4715 20 : dbproc->hndlintr = hndlintr;
4716 : }
4717 :
4718 : /**
4719 : * \ingroup dblib_rpc
4720 : * \brief Determine if query generated a return status number.
4721 : *
4722 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4723 : * \retval TRUE fetch return status with dbretstatus().
4724 : * \retval FALSE no return status.
4725 : * \sa dbnextrow(), dbresults(), dbretdata(), dbretstatus(), dbrpcinit(), dbrpcparam(), dbrpcsend().
4726 : */
4727 : DBBOOL
4728 62 : dbhasretstat(DBPROCESS * dbproc)
4729 : {
4730 : TDSSOCKET *tds;
4731 :
4732 62 : tdsdump_log(TDS_DBG_FUNC, "dbhasretstat(%p)\n", dbproc);
4733 62 : CHECK_PARAMETER(dbproc, SYBENULL, FALSE);
4734 :
4735 62 : tds = dbproc->tds_socket;
4736 62 : if (tds->has_status) {
4737 : return TRUE;
4738 : } else {
4739 30 : return FALSE;
4740 : }
4741 : }
4742 :
4743 : /**
4744 : * \ingroup dblib_rpc
4745 : * \brief Fetch status value returned by query or remote procedure call.
4746 : *
4747 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4748 : * \return return value
4749 : * \sa dbhasretstat(), dbnextrow(), dbresults(), dbretdata(), dbrpcinit(), dbrpcparam(), dbrpcsend().
4750 : */
4751 : DBINT
4752 518 : dbretstatus(DBPROCESS * dbproc)
4753 : {
4754 518 : tdsdump_log(TDS_DBG_FUNC, "dbretstatus(%p)\n", dbproc);
4755 518 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
4756 :
4757 518 : return dbproc->tds_socket->ret_status;
4758 : }
4759 :
4760 : /**
4761 : * \ingroup dblib_rpc
4762 : * \brief Get count of output parameters filled by a stored procedure.
4763 : *
4764 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4765 : * \return How many, possibly zero.
4766 : * \remarks This name sounds funny.
4767 : * \sa
4768 : */
4769 : int
4770 806 : dbnumrets(DBPROCESS * dbproc)
4771 : {
4772 : TDSSOCKET *tds;
4773 : TDS_INT result_type;
4774 :
4775 806 : tdsdump_log(TDS_DBG_FUNC, "dbnumrets(%p)\n", dbproc);
4776 806 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
4777 :
4778 806 : tds = dbproc->tds_socket;
4779 :
4780 806 : tdsdump_log(TDS_DBG_FUNC, "dbnumrets() finds %d columns\n", (tds->param_info? tds->param_info->num_cols : 0));
4781 :
4782 : /* try to fetch output parameters and return status, if we have not already done so */
4783 806 : if (!tds->param_info)
4784 508 : tds_process_tokens(tds, &result_type, NULL, TDS_TOKEN_TRAILING);
4785 :
4786 806 : if (!tds->param_info)
4787 : return 0;
4788 :
4789 300 : return tds->param_info->num_cols;
4790 : }
4791 :
4792 : /**
4793 : * \ingroup dblib_rpc
4794 : * \brief Get name of an output parameter filled by a stored procedure.
4795 : *
4796 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4797 : * \param retnum Nth parameter between \c 1 and the return value from \c dbnumrets().
4798 : * \returns ASCII null-terminated string, \c NULL if no such \a retnum.
4799 : * \sa dbnextrow(), dbnumrets(), dbresults(), dbretdata(), dbretlen(), dbrettype(), dbrpcinit(), dbrpcparam().
4800 : */
4801 : char *
4802 66 : dbretname(DBPROCESS * dbproc, int retnum)
4803 : {
4804 : TDSPARAMINFO *param_info;
4805 :
4806 66 : tdsdump_log(TDS_DBG_FUNC, "dbretname(%p, %d)\n", dbproc, retnum);
4807 66 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
4808 :
4809 66 : if (!dbproc->tds_socket)
4810 : return NULL;
4811 :
4812 66 : dbnumrets(dbproc);
4813 :
4814 66 : param_info = dbproc->tds_socket->param_info;
4815 66 : if (!param_info || !param_info->columns || retnum < 1 || retnum > param_info->num_cols)
4816 : return NULL;
4817 132 : return tds_dstr_buf(¶m_info->columns[retnum - 1]->column_name);
4818 : }
4819 :
4820 : /**
4821 : * \ingroup dblib_rpc
4822 : * \brief Get value of an output parameter filled by a stored procedure.
4823 : *
4824 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4825 : * \param retnum Nth parameter between \c 1 and the return value from \c dbnumrets().
4826 : * \returns Address of a return parameter value, or \c NULL if no such \a retnum.
4827 : * \sa dbnextrow(), dbnumrets(), dbresults(), dbretlen(), dbretname(), dbrettype(), dbrpcinit(), dbrpcparam().
4828 : * \todo Handle blobs.
4829 : */
4830 : BYTE *
4831 70 : dbretdata(DBPROCESS * dbproc, int retnum)
4832 : {
4833 : TDSPARAMINFO *param_info;
4834 :
4835 70 : tdsdump_log(TDS_DBG_FUNC, "dbretdata(%p, %d)\n", dbproc, retnum);
4836 70 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
4837 :
4838 70 : dbnumrets(dbproc);
4839 :
4840 70 : param_info = dbproc->tds_socket->param_info;
4841 70 : if (!param_info || !param_info->columns || retnum < 1 || retnum > param_info->num_cols)
4842 : return NULL;
4843 :
4844 70 : return _dbcoldata(param_info->columns[retnum - 1]);
4845 : }
4846 :
4847 : /**
4848 : * \ingroup dblib_rpc
4849 : * \brief Get size of an output parameter filled by a stored procedure.
4850 : *
4851 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4852 : * \param retnum Nth parameter between \c 1 and the return value from \c dbnumrets().
4853 : * \returns Size of a return parameter value, or \c NULL if no such \a retnum.
4854 : * \sa dbnextrow(), dbnumrets(), dbresults(), dbretdata(), dbretname(), dbrettype(), dbrpcinit(), dbrpcparam().
4855 : */
4856 : int
4857 66 : dbretlen(DBPROCESS * dbproc, int retnum)
4858 : {
4859 : TDSCOLUMN *column;
4860 : TDSPARAMINFO *param_info;
4861 : TDSSOCKET *tds;
4862 :
4863 66 : tdsdump_log(TDS_DBG_FUNC, "dbretlen(%p, %d)\n", dbproc, retnum);
4864 66 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
4865 :
4866 66 : dbnumrets(dbproc);
4867 :
4868 66 : tds = dbproc->tds_socket;
4869 66 : param_info = tds->param_info;
4870 66 : if (!param_info || !param_info->columns || retnum < 1 || retnum > param_info->num_cols)
4871 : return -1;
4872 :
4873 66 : column = param_info->columns[retnum - 1];
4874 66 : if (column->column_cur_size < 0)
4875 : return 0;
4876 :
4877 52 : return column->column_cur_size;
4878 : }
4879 :
4880 : /**
4881 : * \ingroup dblib_core
4882 : * \brief Wait for results of a query from the server.
4883 : *
4884 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
4885 : * \retval SUCCEED everything worked, fetch results with \c dbnextresults().
4886 : * \retval FAIL SQL syntax error, typically.
4887 : * \sa dbcmd(), dbfcmd(), DBIORDESC(), DBIOWDESC(), dbmoretext(), dbnextrow(),
4888 : dbpoll(), DBRBUF(), dbresults(), dbretstatus(), dbrpcsend(), dbsettime(), dbsqlexec(),
4889 : dbsqlsend(), dbwritetext().
4890 : */
4891 : RETCODE
4892 20708 : dbsqlok(DBPROCESS * dbproc)
4893 : {
4894 : TDSSOCKET *tds;
4895 : TDS_INT result_type;
4896 20708 : RETCODE return_code = SUCCEED;
4897 :
4898 20708 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok(%p)\n", dbproc);
4899 20708 : CHECK_CONN(FAIL);
4900 :
4901 20708 : tds = dbproc->tds_socket;
4902 :
4903 : /*
4904 : * dbsqlok has been called after dbmoretext()
4905 : * This is the trigger to send the text data.
4906 : */
4907 :
4908 20708 : if (dbproc->text_sent) {
4909 0 : tds_flush_packet(tds);
4910 0 : dbproc->text_sent = 0;
4911 : }
4912 :
4913 : /*
4914 : * See what the next packet from the server is.
4915 : * We want to skip any messages which are not processable.
4916 : * We're looking for a result token or a done token.
4917 : */
4918 289 : for (;;) {
4919 : TDSRET tds_code;
4920 20997 : int done_flags = 0;
4921 :
4922 : /*
4923 : * If we hit an end token -- e.g. if the command
4924 : * submitted returned no data (like an insert) -- then
4925 : * we process the end token to extract the status code.
4926 : */
4927 20997 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok() not done, calling tds_process_tokens()\n");
4928 :
4929 20997 : tds_code = tds_process_tokens(tds, &result_type, &done_flags, TDS_TOKEN_RESULTS);
4930 :
4931 : /*
4932 : * The error flag may be set for any intervening DONEINPROC packet, in particular
4933 : * by a RAISERROR statement. Microsoft db-lib returns FAIL in that case.
4934 : */
4935 20997 : if (done_flags & TDS_DONE_ERROR) {
4936 78 : return_code = FAIL;
4937 : }
4938 :
4939 20997 : switch (tds_code) {
4940 : case TDS_NO_MORE_RESULTS:
4941 20708 : return SUCCEED;
4942 : break;
4943 :
4944 20939 : case TDS_SUCCESS:
4945 20939 : switch (result_type) {
4946 12190 : case TDS_ROWFMT_RESULT:
4947 12190 : buffer_free(&dbproc->row_buf);
4948 12190 : buffer_alloc(dbproc);
4949 12190 : case TDS_COMPUTEFMT_RESULT:
4950 12190 : dbproc->dbresults_state = _DB_RES_RESULTSET_EMPTY;
4951 12190 : case TDS_COMPUTE_RESULT:
4952 : case TDS_ROW_RESULT:
4953 12190 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok() found result token\n");
4954 : return SUCCEED;
4955 : break;
4956 : case TDS_DONEINPROC_RESULT:
4957 : break;
4958 8460 : case TDS_DONE_RESULT:
4959 : case TDS_DONEPROC_RESULT:
4960 8460 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok() end status is %d (%s)\n", return_code, prdbretcode(return_code));
4961 : #if 1
4962 8460 : if (done_flags & TDS_DONE_ERROR) {
4963 :
4964 78 : if (done_flags & TDS_DONE_MORE_RESULTS) {
4965 0 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
4966 : } else {
4967 78 : dbproc->dbresults_state = _DB_RES_NO_MORE_RESULTS;
4968 : }
4969 :
4970 : } else {
4971 8382 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok() end status was success\n");
4972 :
4973 8382 : dbproc->dbresults_state = _DB_RES_SUCCEED;
4974 : }
4975 :
4976 : return return_code;
4977 : break;
4978 : #else
4979 : int retcode = (done_flags & TDS_DONE_ERROR)? FAIL : SUCCEED;
4980 : dbproc->dbresults_state = (done_flags & TDS_DONE_MORE_RESULTS)?
4981 : _DB_RES_NEXT_RESULT : _DB_RES_NO_MORE_RESULTS;
4982 :
4983 : tdsdump_log(TDS_DBG_FUNC, "dbsqlok: returning %s with %s (%#x)\n",
4984 : prdbretcode(retcode), prdbresults_state(dbproc->dbresults_state), done_flags);
4985 :
4986 : if (retcode == SUCCEED && (done_flags & TDS_DONE_MORE_RESULTS))
4987 : continue;
4988 :
4989 : return retcode;
4990 : #endif
4991 39 : default:
4992 39 : tdsdump_log(TDS_DBG_FUNC, "%s %d: logic error: tds_process_tokens result_type %d\n",
4993 : __FILE__, __LINE__, result_type);
4994 : break;
4995 : }
4996 : break;
4997 :
4998 40 : default:
4999 40 : assert(TDS_FAILED(tds_code));
5000 : return FAIL;
5001 : break;
5002 : }
5003 : }
5004 :
5005 : return SUCCEED;
5006 : }
5007 :
5008 : /**
5009 : * \ingroup dblib_core
5010 : * \brief Get count of columns in a compute row.
5011 : *
5012 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5013 : * \param computeid of \c COMPUTE clause to which we're referring.
5014 : * \return number of columns, else -1 if no such \a computeid.
5015 : * \sa dbadata(), dbadlen(), dbaltlen(), dbalttype(), dbgetrow(), dbnextrow(), dbnumcols().
5016 : */
5017 : int
5018 16 : dbnumalts(DBPROCESS * dbproc, int computeid)
5019 : {
5020 : TDSSOCKET *tds;
5021 : TDSCOMPUTEINFO *info;
5022 : TDS_SMALLINT compute_id;
5023 : TDS_UINT i;
5024 :
5025 16 : tdsdump_log(TDS_DBG_FUNC, "dbnumalts(%p, %d)\n", dbproc, computeid);
5026 16 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
5027 :
5028 16 : tds = dbproc->tds_socket;
5029 16 : compute_id = computeid;
5030 :
5031 24 : for (i = 0;; ++i) {
5032 32 : if (i >= tds->num_comp_info)
5033 : return -1;
5034 24 : info = tds->comp_info[i];
5035 24 : if (info->computeid == compute_id)
5036 : break;
5037 : }
5038 :
5039 16 : return info->num_cols;
5040 : }
5041 :
5042 : /**
5043 : * \ingroup dblib_core
5044 : * \brief Get count of \c COMPUTE clauses for a result set.
5045 : *
5046 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5047 : * \return number of compute clauses for the current query, possibly zero.
5048 : * \sa dbnumalts(), dbresults().
5049 : */
5050 : int
5051 0 : dbnumcompute(DBPROCESS * dbproc)
5052 : {
5053 : TDSSOCKET *tds;
5054 :
5055 0 : tdsdump_log(TDS_DBG_FUNC, "dbnumcompute(%p)\n", dbproc);
5056 0 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
5057 :
5058 0 : tds = dbproc->tds_socket;
5059 :
5060 0 : return tds->num_comp_info;
5061 : }
5062 :
5063 :
5064 : /**
5065 : * \ingroup dblib_core
5066 : * \brief Get \c bylist for a compute row.
5067 : *
5068 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5069 : * \param computeid of \c COMPUTE clause to which we're referring.
5070 : * \param size \em output: size of \c bylist buffer whose address is returned, possibly zero.
5071 : * \return address of \c bylist for \a computeid.
5072 : * \retval NULL no such \a computeid.
5073 : * \remarks Do not free returned pointer.
5074 : * \sa dbadata(), dbadlen(), dbaltlen(), dbalttype(), dbcolname(), dbgetrow(), dbnextrow().
5075 : */
5076 : BYTE *
5077 0 : dbbylist(DBPROCESS * dbproc, int computeid, int *size)
5078 : {
5079 : TDSSOCKET *tds;
5080 : TDSCOMPUTEINFO *info;
5081 : TDS_UINT i;
5082 0 : const TDS_SMALLINT byte_flag = -0x8000;
5083 :
5084 0 : tdsdump_log(TDS_DBG_FUNC, "dbbylist(%p, %d, %p)\n", dbproc, computeid, size);
5085 0 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
5086 :
5087 0 : tds = dbproc->tds_socket;
5088 :
5089 0 : for (i = 0;; ++i) {
5090 0 : if (i >= tds->num_comp_info) {
5091 0 : if (size)
5092 0 : *size = 0;
5093 : return NULL;
5094 : }
5095 0 : info = tds->comp_info[i];
5096 0 : if (info->computeid == computeid)
5097 : break;
5098 : }
5099 :
5100 0 : if (size)
5101 0 : *size = info->by_cols;
5102 :
5103 : /*
5104 : * libtds stores this information using TDS_SMALLINT so we
5105 : * have to convert it. We can do this because libtds just
5106 : * stores these data.
5107 : */
5108 0 : if (info->by_cols > 0 && info->bycolumns[0] != byte_flag) {
5109 : int n;
5110 0 : TDS_TINYINT *p = (TDS_TINYINT*) malloc(sizeof(info->bycolumns[0]) + info->by_cols);
5111 0 : if (!p) {
5112 0 : dbperror(dbproc, SYBEMEM, errno);
5113 0 : return NULL;
5114 : }
5115 0 : for (n = 0; n < info->by_cols; ++n)
5116 0 : p[sizeof(info->bycolumns[0]) + n] = TDS_MIN(info->bycolumns[n], 255);
5117 0 : *((TDS_SMALLINT *)p) = byte_flag;
5118 0 : free(info->bycolumns);
5119 0 : info->bycolumns = (TDS_SMALLINT *) p;
5120 : }
5121 0 : return (BYTE *) (&info->bycolumns[1]);
5122 : }
5123 :
5124 : /** \internal
5125 : * \ingroup dblib_internal
5126 : * \brief Check if \a dbproc is an ex-parrot.
5127 : *
5128 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5129 : * \retval TRUE process has been marked \em dead.
5130 : * \retval FALSE process is OK.
5131 : * \remarks dbdead() does not communicate with the server.
5132 : * Unless a previously db-lib marked \a dbproc \em dead, dbdead() returns \c FALSE.
5133 : * \sa dberrhandle().
5134 : */
5135 : DBBOOL
5136 10 : dbdead(DBPROCESS * dbproc)
5137 : {
5138 10 : tdsdump_log(TDS_DBG_FUNC, "dbdead(%p) [%s]\n", dbproc, dbproc? IS_TDSDEAD(dbproc->tds_socket)? "dead":"alive" : "quite dead");
5139 :
5140 10 : if( NULL == dbproc )
5141 : return TRUE;
5142 :
5143 10 : if (IS_TDSDEAD(dbproc->tds_socket))
5144 : return TRUE;
5145 :
5146 10 : return FALSE;
5147 : }
5148 :
5149 : /** \internal
5150 : * \ingroup dblib_internal
5151 : * \brief default error handler for db-lib (handles library-generated errors)
5152 : *
5153 : * The default error handler doesn't print anything. If you want to see your messages printed,
5154 : * install an error handler. If you think that should be an optional compile- or run-time default,
5155 : * submit a patch. It could be done.
5156 : *
5157 : * \sa DBDEAD(), dberrhandle().
5158 : */
5159 : /* Thus saith Sybase:
5160 : * "If the user does not supply an error handler (or passes a NULL pointer to
5161 : * dberrhandle), DB-Library will exhibit its default error-handling
5162 : * behavior: It will abort the program if the error has made the affected
5163 : * DBPROCESS unusable (the user can call DBDEAD to determine whether
5164 : * or not a DBPROCESS has become unusable). If the error has not made the
5165 : * DBPROCESS unusable, DB-Library will simply return an error code to its caller."
5166 : *
5167 : * It is not the error handler, however, that aborts anything. It is db-lib, cf. dbperror().
5168 : */
5169 : static int
5170 10 : default_err_handler(DBPROCESS * dbproc, int severity, int dberr, int oserr, char *dberrstr, char *oserrstr)
5171 : {
5172 10 : tdsdump_log(TDS_DBG_FUNC, "default_err_handler %p, %d, %d, %d, %p, %p", dbproc, severity, dberr, oserr, dberrstr, oserrstr);
5173 :
5174 10 : if (DBDEAD(dbproc) && (!dbproc || !dbproc->msdblib)) {
5175 : return INT_EXIT;
5176 : }
5177 :
5178 10 : if (!dbproc || !dbproc->msdblib) { /* i.e. Sybase behavior */
5179 10 : switch(dberr) {
5180 : case SYBETIME:
5181 : return INT_EXIT;
5182 : default:
5183 : break;
5184 : }
5185 0 : }
5186 10 : return INT_CANCEL;
5187 : }
5188 :
5189 : /**
5190 : * \ingroup dblib_core
5191 : * \brief Set an error handler, for messages from db-lib.
5192 : *
5193 : * \param handler pointer to callback function that will handle errors.
5194 : * Pass NULL to restore the default handler.
5195 : * \return address of prior handler, or NULL if none was previously installed.
5196 : * \sa DBDEAD(), dbmsghandle().
5197 : */
5198 : EHANDLEFUNC
5199 1152 : dberrhandle(EHANDLEFUNC handler)
5200 : {
5201 1152 : EHANDLEFUNC old_handler = _dblib_err_handler;
5202 :
5203 1152 : tdsdump_log(TDS_DBG_FUNC, "dberrhandle(%p)\n", handler);
5204 :
5205 1152 : _dblib_err_handler = handler? handler : default_err_handler;
5206 :
5207 1152 : return (old_handler == default_err_handler)? NULL : old_handler;
5208 : }
5209 :
5210 : /**
5211 : * \ingroup dblib_core
5212 : * \brief Set a message handler, for messages from the server.
5213 : *
5214 : * \param handler address of the function that will process the messages.
5215 : * \sa DBDEAD(), dberrhandle().
5216 : */
5217 : MHANDLEFUNC
5218 1172 : dbmsghandle(MHANDLEFUNC handler)
5219 : {
5220 1172 : MHANDLEFUNC retFun = _dblib_msg_handler;
5221 :
5222 1172 : tdsdump_log(TDS_DBG_FUNC, "dbmsghandle(%p)\n", handler);
5223 :
5224 1172 : _dblib_msg_handler = handler;
5225 1172 : return retFun;
5226 : }
5227 :
5228 : #if defined(DBLIB_UNIMPLEMENTED)
5229 : /**
5230 : * \ingroup dblib_money
5231 : * \brief Add two DBMONEY values.
5232 : *
5233 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5234 : * \param m1 first operand.
5235 : * \param m2 other operand.
5236 : * \param sum \em output: result of computation.
5237 : * \retval SUCCEED Always.
5238 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5239 : * \todo Unimplemented.
5240 : */
5241 : RETCODE
5242 : dbmnyadd(DBPROCESS * dbproc, DBMONEY * m1, DBMONEY * m2, DBMONEY * sum)
5243 : {
5244 : tdsdump_log(TDS_DBG_FUNC, "dbmnyadd(%p, %p, %p, %p)\n", dbproc, m1, m2, sum);
5245 : CHECK_CONN(FAIL);
5246 : CHECK_NULP(m1, "dbmnyadd", 2, FAIL);
5247 : CHECK_NULP(m2, "dbmnyadd", 3, FAIL);
5248 : CHECK_NULP(sum, "dbmnyadd", 4, FAIL);
5249 :
5250 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnyadd()\n");
5251 : return SUCCEED;
5252 : }
5253 :
5254 :
5255 : /**
5256 : * \ingroup dblib_money
5257 : * \brief Subtract two DBMONEY values.
5258 : *
5259 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5260 : * \param m1 first operand.
5261 : * \param m2 other operand, subtracted from \a m1.
5262 : * \param difference \em output: result of computation.
5263 : * \retval SUCCEED Always.
5264 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5265 : * \todo Unimplemented.
5266 : */
5267 : RETCODE
5268 : dbmnysub(DBPROCESS * dbproc, DBMONEY * m1, DBMONEY * m2, DBMONEY * difference)
5269 : {
5270 : tdsdump_log(TDS_DBG_FUNC, "dbmnysub(%p, %p, %p, %p)\n", dbproc, m1, m2, difference);
5271 : CHECK_CONN(FAIL);
5272 : CHECK_NULP(m1, "dbmnysub", 2, FAIL);
5273 : CHECK_NULP(m2, "dbmnysub", 3, FAIL);
5274 : CHECK_NULP(difference, "dbmnysub", 4, FAIL);
5275 :
5276 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnysyb()\n");
5277 : return SUCCEED;
5278 : }
5279 :
5280 : /**
5281 : * \ingroup dblib_money
5282 : * \brief Multiply two DBMONEY values.
5283 : *
5284 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5285 : * \param m1 first operand.
5286 : * \param m2 other operand.
5287 : * \param prod \em output: result of computation.
5288 : * \retval SUCCEED Always.
5289 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5290 : * \todo Unimplemented.
5291 : */
5292 : RETCODE
5293 : dbmnymul(DBPROCESS * dbproc, DBMONEY * m1, DBMONEY * m2, DBMONEY * prod)
5294 : {
5295 : tdsdump_log(TDS_DBG_FUNC, "dbmnymul(%p, %p, %p, %p)\n", dbproc, m1, m2, prod);
5296 : CHECK_CONN(FAIL);
5297 : CHECK_NULP(m1, "dbmnymul", 2, FAIL);
5298 : CHECK_NULP(m2, "dbmnymul", 3, FAIL);
5299 : CHECK_NULP(prod, "dbmnymul", 4, FAIL);
5300 :
5301 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnymul()\n");
5302 : return SUCCEED;
5303 : }
5304 :
5305 : /**
5306 : * \ingroup dblib_money
5307 : * \brief Divide two DBMONEY values.
5308 : *
5309 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5310 : * \param m1 dividend.
5311 : * \param m2 divisor.
5312 : * \param quotient \em output: result of computation.
5313 : * \retval SUCCEED Always.
5314 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5315 : * \todo Unimplemented.
5316 : */
5317 : RETCODE
5318 : dbmnydivide(DBPROCESS * dbproc, DBMONEY * m1, DBMONEY * m2, DBMONEY * quotient)
5319 : {
5320 : tdsdump_log(TDS_DBG_FUNC, "dbmnydivide(%p, %p, %p, %p)\n", dbproc, m1, m2, quotient);
5321 : CHECK_CONN(FAIL);
5322 : CHECK_NULP(m1, "dbmnydivide", 2, FAIL);
5323 : CHECK_NULP(m2, "dbmnydivide", 3, FAIL);
5324 : CHECK_NULP(quotient, "dbmnydivide", 4, FAIL);
5325 :
5326 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnydivide()\n");
5327 : return SUCCEED;
5328 : }
5329 : #endif
5330 :
5331 : /**
5332 : * \ingroup dblib_money
5333 : * \brief Compare two DBMONEY values.
5334 : *
5335 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5336 : * \param m1 some money.
5337 : * \param m2 some other money.
5338 : * \retval 0 m1 == m2.
5339 : * \retval -1 m1 < m2.
5340 : * \retval 1 m1 > m2.
5341 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5342 : */
5343 : int
5344 0 : dbmnycmp(DBPROCESS * dbproc, DBMONEY * m1, DBMONEY * m2)
5345 : {
5346 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnycmp(%p, %p, %p)\n", dbproc, m1, m2);
5347 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
5348 0 : CHECK_NULP(m1, "dbmnycmp", 2, 0);
5349 0 : CHECK_NULP(m2, "dbmnycmp", 3, 0);
5350 :
5351 0 : if (m1->mnyhigh < m2->mnyhigh) {
5352 : return -1;
5353 : }
5354 0 : if (m1->mnyhigh > m2->mnyhigh) {
5355 : return 1;
5356 : }
5357 0 : if (m1->mnylow < m2->mnylow) {
5358 : return -1;
5359 : }
5360 0 : if (m1->mnylow > m2->mnylow) {
5361 : return 1;
5362 : }
5363 0 : return 0;
5364 : }
5365 :
5366 : #if defined(DBLIB_UNIMPLEMENTED)
5367 : /**
5368 : * \ingroup dblib_money
5369 : * \brief Multiply a DBMONEY value by a positive integer, and add an amount.
5370 : *
5371 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5372 : * \param amount starting amount of money, also holds output.
5373 : * \param multiplier amount to multiply \a amount by.
5374 : * \param addend amount to add to \a amount, after multiplying by \a multiplier.
5375 : * \retval SUCCEED Always.
5376 : * \remarks This function is goofy.
5377 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5378 : * \todo Unimplemented.
5379 : */
5380 : RETCODE
5381 : dbmnyscale(DBPROCESS * dbproc, DBMONEY * amount, int multiplier, int addend)
5382 : {
5383 : tdsdump_log(TDS_DBG_FUNC, "dbmnyscale(%p, %p, %d, %d)\n", dbproc, amount, multiplier, addend);
5384 : CHECK_CONN(FAIL);
5385 : CHECK_NULP(amount, "dbmnyscale", 2, FAIL);
5386 :
5387 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnyscale()\n");
5388 : return SUCCEED;
5389 : }
5390 : #endif
5391 :
5392 : /**
5393 : * \ingroup dblib_money
5394 : * \brief Set a DBMONEY value to zero.
5395 : *
5396 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5397 : * \param dest address of a DBMONEY structure.
5398 : * \retval SUCCEED unless \a amount is NULL.
5399 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5400 : */
5401 : RETCODE
5402 0 : dbmnyzero(DBPROCESS * dbproc, DBMONEY * dest)
5403 : {
5404 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnyzero(%p, %p)\n", dbproc, dest);
5405 0 : CHECK_CONN(FAIL);
5406 0 : CHECK_NULP(dest, "dbmnyzero", 2, FAIL);
5407 :
5408 0 : dest->mnylow = 0;
5409 0 : dest->mnyhigh = 0;
5410 0 : return SUCCEED;
5411 : }
5412 :
5413 : /**
5414 : * \ingroup dblib_money
5415 : * \brief Get maximum positive DBMONEY value supported.
5416 : *
5417 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5418 : * \param amount address of a DBMONEY structure.
5419 : * \retval SUCCEED Always.
5420 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5421 : */
5422 : RETCODE
5423 0 : dbmnymaxpos(DBPROCESS * dbproc, DBMONEY * amount)
5424 : {
5425 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnymaxpos(%p, %p)\n", dbproc, amount);
5426 0 : CHECK_CONN(FAIL);
5427 0 : CHECK_NULP(amount, "dbmnymaxpos", 2, FAIL);
5428 :
5429 0 : amount->mnylow = 0xFFFFFFFFlu;
5430 0 : amount->mnyhigh = 0x7FFFFFFFl;
5431 0 : return SUCCEED;
5432 : }
5433 :
5434 : /**
5435 : * \ingroup dblib_money
5436 : * \brief Get maximum negative DBMONEY value supported.
5437 : *
5438 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5439 : * \param amount address of a DBMONEY structure.
5440 : * \retval SUCCEED Always.
5441 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5442 : */
5443 : RETCODE
5444 0 : dbmnymaxneg(DBPROCESS * dbproc, DBMONEY * amount)
5445 : {
5446 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnymaxneg(%p, %p)\n", dbproc, amount);
5447 0 : CHECK_CONN(FAIL);
5448 0 : CHECK_NULP(amount, "dbmnymaxneg", 2, FAIL);
5449 :
5450 0 : amount->mnylow = 0;
5451 0 : amount->mnyhigh = -0x7FFFFFFFL - 1;
5452 0 : return SUCCEED;
5453 : }
5454 :
5455 : #if defined(DBLIB_UNIMPLEMENTED)
5456 : /**
5457 : * \ingroup dblib_money
5458 : * \brief Get the least significant digit of a DBMONEY value, represented as a character.
5459 : *
5460 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5461 : * \param mnyptr \em input the money amount, \em and \em output: \a mnyptr divided by 10.
5462 : * \param digit the character value (between '0' and '9') of the rightmost digit in \a mnyptr.
5463 : * \param zero \em output: \c TRUE if \a mnyptr is zero on output, else \c FALSE.
5464 : * \retval SUCCEED Always.
5465 : * \sa dbconvert(), dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5466 : * \remarks Unimplemented and likely to remain so. We'd be amused to learn anyone wants this function.
5467 : * \todo Unimplemented.
5468 : */
5469 : RETCODE
5470 : dbmnyndigit(DBPROCESS * dbproc, DBMONEY * mnyptr, DBCHAR * digit, DBBOOL * zero)
5471 : {
5472 : tdsdump_log(TDS_DBG_FUNC, "dbmnyndigit(%p, %p, %s, %p)\n", dbproc, mnyptr, digit, zero);
5473 : CHECK_CONN(FAIL);
5474 : CHECK_NULP(mnyptr, "dbmnyndigit", 2, FAIL);
5475 : CHECK_NULP(digit, "dbmnyndigit", 3, FAIL);
5476 : CHECK_NULP(zero, "dbmnyndigit", 4, FAIL);
5477 :
5478 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnyndigit()\n");
5479 : return SUCCEED;
5480 : }
5481 :
5482 : /**
5483 : * \ingroup dblib_money
5484 : * \brief Prepare a DBMONEY value for use with dbmnyndigit().
5485 : *
5486 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5487 : * \param amount address of a DBMONEY structure.
5488 : * \param trim number of digits to trim from \a amount.
5489 : * \param negative \em output: \c TRUE if \a amount < 0.
5490 : * \retval SUCCEED Always.
5491 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5492 : * \todo Unimplemented.
5493 : */
5494 : RETCODE
5495 : dbmnyinit(DBPROCESS * dbproc, DBMONEY * amount, int trim, DBBOOL * negative)
5496 : {
5497 : tdsdump_log(TDS_DBG_FUNC, "dbmnyinit(%p, %p, %d, %p)\n", dbproc, amount, trim, negative);
5498 : CHECK_CONN(FAIL);
5499 : CHECK_NULP(amount, "dbmnyinit", 2, FAIL);
5500 : CHECK_NULP(negative, "dbmnyinit", 4, FAIL);
5501 :
5502 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnyinit()\n");
5503 : return SUCCEED;
5504 : }
5505 :
5506 :
5507 : /**
5508 : * \ingroup dblib_money
5509 : * \brief Divide a DBMONEY value by a positive integer.
5510 : *
5511 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5512 : * \param amount address of a DBMONEY structure.
5513 : * \param divisor of \a amount.
5514 : * \param remainder \em output: modulo of integer division.
5515 : * \retval SUCCEED Always.
5516 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5517 : * \todo Unimplemented.
5518 : */
5519 : RETCODE
5520 : dbmnydown(DBPROCESS * dbproc, DBMONEY * amount, int divisor, int *remainder)
5521 : {
5522 : tdsdump_log(TDS_DBG_FUNC, "dbmnydown(%p, %p, %d, %p)\n", dbproc, amount, divisor, remainder);
5523 : CHECK_CONN(FAIL);
5524 : CHECK_NULP(amount, "dbmnydown", 2, FAIL);
5525 : CHECK_NULP(remainder, "dbmnydown", 4, FAIL);
5526 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmnydown()\n");
5527 : return SUCCEED;
5528 : }
5529 : #endif
5530 :
5531 : /**
5532 : * \ingroup dblib_money
5533 : * \brief Add $0.0001 to a DBMONEY value.
5534 : *
5535 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5536 : * \param amount address of a DBMONEY structure.
5537 : * \retval SUCCEED or FAIL if overflow or amount NULL.
5538 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5539 : */
5540 : RETCODE
5541 0 : dbmnyinc(DBPROCESS * dbproc, DBMONEY * amount)
5542 : {
5543 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnyinc(%p, %p)\n", dbproc, amount);
5544 0 : CHECK_CONN(FAIL);
5545 0 : CHECK_NULP(amount, "dbmnyinc", 2, FAIL);
5546 :
5547 0 : if (amount->mnylow != 0xFFFFFFFFlu) {
5548 0 : ++amount->mnylow;
5549 0 : return SUCCEED;
5550 : }
5551 0 : if (amount->mnyhigh == 0x7FFFFFFFl)
5552 : return FAIL;
5553 0 : amount->mnylow = 0;
5554 0 : ++amount->mnyhigh;
5555 0 : return SUCCEED;
5556 : }
5557 :
5558 :
5559 : /**
5560 : * \ingroup dblib_money
5561 : * \brief Subtract $0.0001 from a DBMONEY value.
5562 : *
5563 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5564 : * \param amount address of a DBMONEY structure.
5565 : * \retval SUCCEED or FAIL if overflow or amount NULL.
5566 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5567 : */
5568 : RETCODE
5569 0 : dbmnydec(DBPROCESS * dbproc, DBMONEY * amount)
5570 : {
5571 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnydec(%p, %p)\n", dbproc, amount);
5572 0 : CHECK_CONN(FAIL);
5573 0 : CHECK_NULP(amount, "dbmnydec", 2, FAIL);
5574 :
5575 0 : if (amount->mnylow != 0) {
5576 0 : --amount->mnylow;
5577 0 : return SUCCEED;
5578 : }
5579 0 : if (amount->mnyhigh == -0x7FFFFFFFL - 1)
5580 : return FAIL;
5581 0 : amount->mnylow = 0xFFFFFFFFlu;
5582 0 : --amount->mnyhigh;
5583 0 : return SUCCEED;
5584 : }
5585 :
5586 : /**
5587 : * \ingroup dblib_money
5588 : * \brief Negate a DBMONEY value.
5589 : *
5590 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5591 : * \param src address of a DBMONEY structure.
5592 : * \param dest \em output: result of negation.
5593 : * \retval SUCCEED or FAIL if overflow or src/dest NULL.
5594 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5595 : */
5596 : RETCODE
5597 0 : dbmnyminus(DBPROCESS * dbproc, DBMONEY * src, DBMONEY * dest)
5598 : {
5599 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnyminus(%p, %p, %p)\n", dbproc, src, dest);
5600 0 : CHECK_CONN(FAIL);
5601 0 : CHECK_NULP(src, "dbmnyminus", 2, FAIL);
5602 0 : CHECK_NULP(dest, "dbmnyminus", 3, FAIL);
5603 :
5604 0 : if (src->mnyhigh == -0x7FFFFFFFL - 1 && src->mnylow == 0)
5605 : return FAIL;
5606 0 : dest->mnyhigh = -src->mnyhigh;
5607 0 : dest->mnylow = (~src->mnylow) + 1u;
5608 0 : return SUCCEED;
5609 : }
5610 :
5611 :
5612 : /**
5613 : * \ingroup dblib_money
5614 : * \brief Negate a DBMONEY4 value.
5615 : *
5616 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5617 : * \param src address of a DBMONEY4 structure.
5618 : * \param dest \em output: result of negation.
5619 : * \retval SUCCEED usually.
5620 : * \retval FAIL on overflow.
5621 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5622 : */
5623 : RETCODE
5624 0 : dbmny4minus(DBPROCESS * dbproc, DBMONEY4 * src, DBMONEY4 * dest)
5625 : {
5626 : DBMONEY4 zero;
5627 :
5628 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4minus(%p, %p, %p)\n", dbproc, src, dest);
5629 0 : CHECK_CONN(FAIL);
5630 0 : CHECK_NULP(src, "dbmny4minus", 2, FAIL);
5631 0 : CHECK_NULP(dest, "dbmny4minus", 3, FAIL);
5632 :
5633 0 : dbmny4zero(dbproc, &zero);
5634 0 : return (dbmny4sub(dbproc, &zero, src, dest));
5635 : }
5636 :
5637 : /**
5638 : * \ingroup dblib_money
5639 : * \brief Zero a DBMONEY4 value.
5640 : *
5641 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5642 : * \param dest address of a DBMONEY structure.
5643 : * \retval SUCCEED usually.
5644 : * \retval FAIL \a dest is NULL.
5645 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5646 : */
5647 : RETCODE
5648 0 : dbmny4zero(DBPROCESS * dbproc, DBMONEY4 * dest)
5649 : {
5650 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4zero(%p, %p)\n", dbproc, dest);
5651 0 : CHECK_CONN(FAIL);
5652 0 : CHECK_NULP(dest, "dbmny4zero", 2, FAIL);
5653 :
5654 0 : dest->mny4 = 0;
5655 0 : return SUCCEED;
5656 : }
5657 :
5658 : /**
5659 : * \ingroup dblib_money
5660 : * \brief Add two DBMONEY4 values.
5661 : *
5662 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5663 : * \param m1 first operand.
5664 : * \param m2 other operand.
5665 : * \param sum \em output: result of computation.
5666 : * \retval SUCCEED usually.
5667 : * \retval FAIL on overflow.
5668 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5669 : */
5670 : RETCODE
5671 0 : dbmny4add(DBPROCESS * dbproc, DBMONEY4 * m1, DBMONEY4 * m2, DBMONEY4 * sum)
5672 : {
5673 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4add(%p, %p, %p, %p)\n", dbproc, m1, m2, sum);
5674 0 : CHECK_CONN(FAIL);
5675 0 : CHECK_NULP(m1, "dbmny4add", 2, FAIL);
5676 0 : CHECK_NULP(m2, "dbmny4add", 3, FAIL);
5677 0 : CHECK_NULP(sum, "dbmny4add", 4, FAIL);
5678 :
5679 0 : sum->mny4 = m1->mny4 + m2->mny4;
5680 0 : if (((m1->mny4 < 0) && (m2->mny4 < 0) && (sum->mny4 >= 0))
5681 0 : || ((m1->mny4 > 0) && (m2->mny4 > 0) && (sum->mny4 <= 0))) {
5682 : /* overflow */
5683 0 : sum->mny4 = 0;
5684 0 : return FAIL;
5685 : }
5686 : return SUCCEED;
5687 : }
5688 :
5689 : /**
5690 : * \ingroup dblib_money
5691 : * \brief Subtract two DBMONEY4 values.
5692 : *
5693 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5694 : * \param m1 first operand.
5695 : * \param m2 other operand, subtracted from \a m1.
5696 : * \param diff \em output: result of computation.
5697 : * \retval SUCCEED usually.
5698 : * \retval FAIL on overflow.
5699 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5700 : */
5701 : RETCODE
5702 0 : dbmny4sub(DBPROCESS * dbproc, DBMONEY4 * m1, DBMONEY4 * m2, DBMONEY4 * diff)
5703 : {
5704 :
5705 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4sub(%p, %p, %p, %p)\n", dbproc, m1, m2, diff);
5706 0 : CHECK_CONN(FAIL);
5707 0 : CHECK_NULP(m1, "dbmny4sub", 2, FAIL);
5708 0 : CHECK_NULP(m2, "dbmny4sub", 3, FAIL);
5709 0 : CHECK_NULP(diff, "dbmny4sub", 4, FAIL);
5710 :
5711 0 : diff->mny4 = m1->mny4 - m2->mny4;
5712 0 : if (((m1->mny4 <= 0) && (m2->mny4 > 0) && (diff->mny4 > 0))
5713 0 : || ((m1->mny4 >= 0) && (m2->mny4 < 0) && (diff->mny4 < 0))) {
5714 : /* overflow */
5715 0 : diff->mny4 = 0;
5716 0 : return FAIL;
5717 : }
5718 : return SUCCEED;
5719 : }
5720 :
5721 : #if defined(DBLIB_UNIMPLEMENTED)
5722 : /**
5723 : * \ingroup dblib_money
5724 : * \brief Multiply two DBMONEY4 values.
5725 : *
5726 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5727 : * \param m1 first operand.
5728 : * \param m2 other operand.
5729 : * \param prod \em output: result of computation.
5730 : * \retval SUCCEED usually.
5731 : * \retval FAIL a parameter is NULL.
5732 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5733 : * \todo Unimplemented.
5734 : */
5735 : RETCODE
5736 : dbmny4mul(DBPROCESS * dbproc, DBMONEY4 * m1, DBMONEY4 * m2, DBMONEY4 * prod)
5737 : {
5738 :
5739 : tdsdump_log(TDS_DBG_FUNC, "dbmny4mul(%p, %p, %p, %p)\n", dbproc, m1, m2, prod);
5740 : CHECK_CONN(FAIL);
5741 : CHECK_NULP(m1, "dbmny4mul", 2, FAIL);
5742 : CHECK_NULP(m2, "dbmny4mul", 3, FAIL);
5743 : CHECK_NULP(prod, "dbmny4mul", 4, FAIL);
5744 :
5745 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmny4mul()\n");
5746 : return FAIL;
5747 : }
5748 :
5749 : /**
5750 : * \ingroup dblib_money
5751 : * \brief Divide two DBMONEY4 values.
5752 : *
5753 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5754 : * \param m1 dividend.
5755 : * \param m2 divisor.
5756 : * \param quotient \em output: result of computation.
5757 : * \retval SUCCEED usually.
5758 : * \retval FAIL a parameter is NULL.
5759 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5760 : * \todo Unimplemented.
5761 : */
5762 : RETCODE
5763 : dbmny4divide(DBPROCESS * dbproc, DBMONEY4 * m1, DBMONEY4 * m2, DBMONEY4 * quotient)
5764 : {
5765 :
5766 : tdsdump_log(TDS_DBG_FUNC, "dbmny4divide(%p, %p, %p, %p)\n", dbproc, m1, m2, quotient);
5767 : CHECK_CONN(FAIL);
5768 : CHECK_NULP(m1, "dbmny4divide", 2, FAIL);
5769 : CHECK_NULP(m2, "dbmny4divide", 3, FAIL);
5770 : CHECK_NULP(quotient, "dbmny4divide", 4, FAIL);
5771 :
5772 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbmny4divide()\n");
5773 : return FAIL;
5774 : }
5775 : #endif
5776 :
5777 : /**
5778 : * \ingroup dblib_money
5779 : * \brief Compare two DBMONEY4 values.
5780 : *
5781 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5782 : * \param m1 some money.
5783 : * \param m2 some other money.
5784 : * \retval 0 m1 == m2.
5785 : * \retval -1 m1 < m2.
5786 : * \retval 1 m1 > m2.
5787 : * \sa dbmnyadd(), dbmnysub(), dbmnymul(), dbmnydivide(), dbmnyminus(), dbmny4add(), dbmny4sub(), dbmny4mul(), dbmny4divide(), dbmny4minus().
5788 : */
5789 : int
5790 0 : dbmny4cmp(DBPROCESS * dbproc, DBMONEY4 * m1, DBMONEY4 * m2)
5791 : {
5792 :
5793 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4cmp(%p, %p, %p)\n", dbproc, m1, m2);
5794 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
5795 0 : CHECK_NULP(m1, "dbmny4cmp", 2, 0);
5796 0 : CHECK_NULP(m2, "dbmny4cmp", 3, 0);
5797 :
5798 0 : if (m1->mny4 < m2->mny4) {
5799 : return -1;
5800 : }
5801 0 : if (m1->mny4 > m2->mny4) {
5802 : return 1;
5803 : }
5804 0 : return 0;
5805 : }
5806 :
5807 : /**
5808 : * \ingroup dblib_money
5809 : * \brief Copy a DBMONEY4 value.
5810 : *
5811 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5812 : * \param src address of a DBMONEY4 structure.
5813 : * \param dest \em output: new money.
5814 : * \retval SUCCEED or FAIL if src/dest NULL.
5815 : * \sa dbmnycopy(), dbmnyminus(), dbmny4minus().
5816 : */
5817 : RETCODE
5818 0 : dbmny4copy(DBPROCESS * dbproc, DBMONEY4 * src, DBMONEY4 * dest)
5819 : {
5820 :
5821 0 : tdsdump_log(TDS_DBG_FUNC, "dbmny4copy(%p, %p, %p)\n", dbproc, src, dest);
5822 0 : CHECK_CONN(FAIL);
5823 0 : CHECK_NULP(src, "dbmny4copy", 2, FAIL);
5824 0 : CHECK_NULP(dest, "dbmny4copy", 3, FAIL);
5825 :
5826 0 : dest->mny4 = src->mny4;
5827 0 : return SUCCEED;
5828 : }
5829 :
5830 : /**
5831 : * \ingroup dblib_datetime
5832 : * \brief Compare DBDATETIME values, similar to strcmp(3).
5833 : *
5834 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5835 : * \param d1 a \c DBDATETIME structure address
5836 : * \param d2 another \c DBDATETIME structure address
5837 : * \retval 0 d1 = d2.
5838 : * \retval -1 d1 < d2.
5839 : * \retval 1 d1 > d2.
5840 : * \sa dbdate4cmp(), dbmnycmp(), dbmny4cmp().
5841 : */
5842 : int
5843 0 : dbdatecmp(DBPROCESS * dbproc, DBDATETIME * d1, DBDATETIME * d2)
5844 : {
5845 0 : tdsdump_log(TDS_DBG_FUNC, "dbdatecmp(%p, %p, %p)\n", dbproc, d1, d2);
5846 0 : CHECK_CONN(FAIL);
5847 0 : CHECK_NULP(d1, "dbdatecmp", 2, 0);
5848 0 : CHECK_NULP(d2, "dbdatecmp", 3, 0);
5849 :
5850 0 : if (d1->dtdays == d2->dtdays) {
5851 0 : if (d1->dttime == d2->dttime)
5852 : return 0;
5853 0 : return d1->dttime > d2->dttime ? 1 : -1;
5854 : }
5855 :
5856 : /* date 1 is before 1900 */
5857 0 : if (d1->dtdays > 2958463) {
5858 :
5859 0 : if (d2->dtdays > 2958463) /* date 2 is before 1900 */
5860 0 : return d1->dtdays > d2->dtdays ? 1 : -1;
5861 : return -1;
5862 : }
5863 :
5864 : /* date 1 is after 1900 */
5865 0 : if (d2->dtdays < 2958463) /* date 2 is after 1900 */
5866 0 : return d1->dtdays > d2->dtdays ? 1 : -1;
5867 : return 1;
5868 : }
5869 :
5870 : static RETCODE
5871 24 : dblib_datecrack(DBPROCESS * dbproc, BOOL nano_precision, DBDATEREC * output, int type, const void * data)
5872 : {
5873 : TDSDATEREC dr;
5874 24 : struct tds_sybase_dbdaterec *di = (struct tds_sybase_dbdaterec*) output;
5875 :
5876 24 : tdsdump_log(TDS_DBG_FUNC, "dblib_datecrack(%p, %d, %p, %d, %p)\n", dbproc, nano_precision, output, type, data);
5877 24 : CHECK_NULP(output, "dbdatecrack", 2, FAIL);
5878 24 : CHECK_PARAMETER(data, SYBENDTP, FAIL);
5879 :
5880 24 : if (TDS_FAILED(tds_datecrack(type, data, &dr)))
5881 : return FAIL;
5882 :
5883 24 : di->dateyear = dr.year;
5884 24 : di->quarter = dr.quarter;
5885 24 : di->datemonth = dr.month;
5886 24 : di->datedmonth = dr.day;
5887 24 : di->datedyear = dr.dayofyear;
5888 24 : di->datedweek = dr.weekday;
5889 24 : di->datehour = dr.hour;
5890 24 : di->dateminute = dr.minute;
5891 24 : di->datesecond = dr.second;
5892 24 : di->datetzone = dr.timezone;
5893 24 : if (nano_precision)
5894 : /* here we are writing to nanosecond field */
5895 4 : di->datemsecond = dr.decimicrosecond * 100u;
5896 : else
5897 20 : di->datemsecond = dr.decimicrosecond / 10000u;
5898 : /* Revert to compiled-in default if dbproc can't be used to find the runtime override. */
5899 24 : if (dbproc ? dbproc->msdblib : dblib_msdblib) {
5900 0 : ++di->quarter;
5901 0 : ++di->datemonth;
5902 0 : ++di->datedweek;
5903 : }
5904 : return SUCCEED;
5905 : }
5906 :
5907 : /**
5908 : * \ingroup dblib_core
5909 : * \brief Break a DBDATETIME value into useful pieces.
5910 : *
5911 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5912 : * \param di \em output: structure to contain the exploded parts of \a datetime.
5913 : * \param datetime \em input: \c DBDATETIME to be converted.
5914 : * \retval SUCCEED always.
5915 : * \remarks The members of \a di have different names, depending on whether \c --with-msdblib was configured.
5916 : *
5917 : * If DBPROCESS is NULL, dbdatecrack() uses the compiled in default
5918 : * value of MSDBLIB as of when libsybdb was compiled, irrespective of its value when the
5919 : * application is compiled. This can lead to incorrect results because Sybase and Microsoft use different
5920 : * ranges -- [0,11] vs. [1,12] -- for the month.
5921 : *
5922 : * \sa dbconvert(), dbdata(), dbdatechar(), dbdatename(), dbdatepart(), tdsdbopen().
5923 : */
5924 : RETCODE
5925 20 : dbdatecrack(DBPROCESS * dbproc, DBDATEREC * di, DBDATETIME * datetime)
5926 : {
5927 20 : return dblib_datecrack(dbproc, FALSE, di, SYBDATETIME, datetime);
5928 : }
5929 :
5930 : /**
5931 : * \ingroup dblib_core
5932 : * \brief Break any kind of date or time value into useful pieces.
5933 : *
5934 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5935 : * \param di \em output: structure to contain the exploded parts of \a datetime.
5936 : * \param type \em input: \c type of date/time value returned by dbcoltype().
5937 : * \param data \em input: \c date/time value to be converted.
5938 : * \retval SUCCEED always.
5939 : * \remarks The members of \a di have different names, depending on whether \c --with-msdblib was configured.
5940 : *
5941 : * This is an extension to dbdatecrack(), see it for more information.
5942 : *
5943 : * \sa dbdatecrack(), dbconvert(), dbdata(), dbdatechar(), dbdatename(), dbdatepart(), tdsdbopen().
5944 : */
5945 : RETCODE
5946 4 : dbanydatecrack(DBPROCESS * dbproc, DBDATEREC2 * di, int type, const void *data)
5947 : {
5948 4 : return dblib_datecrack(dbproc, TRUE, (DBDATEREC *) di, type, data);
5949 : }
5950 :
5951 : #if defined(DBLIB_UNIMPLEMENTED)
5952 : /**
5953 : * \ingroup dblib_core
5954 : * \brief Clear remote passwords from the LOGINREC structure.
5955 : *
5956 : * \param login structure to pass to dbopen().
5957 : * \sa dblogin(), dbopen(), dbrpwset(), DBSETLAPP(), DBSETLHOST(), DBSETLPWD(), DBSETLUSER().
5958 : * \remarks Useful for remote stored procedure calls, but not in high demand from FreeTDS.
5959 : * \todo Unimplemented.
5960 : */
5961 : void
5962 : dbrpwclr(LOGINREC * login)
5963 : {
5964 : tdsdump_log(TDS_DBG_FUNC, "dbrpwclr(%p)\n", login);
5965 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbrpwclr()\n");
5966 : }
5967 :
5968 : /**
5969 : * \ingroup dblib_core
5970 : * \brief Add a remote password to the LOGINREC structure.
5971 : *
5972 : * \param login structure to pass to dbopen().
5973 : * \param srvname server for which \a password should be used.
5974 : * \param password you guessed it, let's hope no else does.
5975 : * \param pwlen count of \a password, in bytes.
5976 : * \remarks Useful for remote stored procedure calls, but not in high demand from FreeTDS.
5977 : * \sa dblogin(), dbopen(), dbrpwclr(), DBSETLAPP(), DBSETLHOST(), DBSETLPWD(), DBSETLUSER().
5978 : * \todo Unimplemented.
5979 : */
5980 : RETCODE
5981 : dbrpwset(LOGINREC * login, char *srvname, char *password, int pwlen)
5982 : {
5983 : tdsdump_log(TDS_DBG_FUNC, "dbrpwset(%p, %s, %s, %d)\n", login, srvname, password, pwlen);
5984 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbrpwset()\n");
5985 : return SUCCEED;
5986 : }
5987 : #endif
5988 :
5989 : /**
5990 : * \ingroup dblib_core
5991 : * \brief Get server process ID for a \c DBPROCESS.
5992 : *
5993 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
5994 : * \return \em "spid", the server's process ID.
5995 : * \sa dbopen().
5996 : */
5997 : int
5998 10 : dbspid(DBPROCESS * dbproc)
5999 : {
6000 10 : tdsdump_log(TDS_DBG_FUNC, "dbspid(%p)\n", dbproc);
6001 10 : CHECK_CONN(-1);
6002 :
6003 10 : return dbproc->tds_socket->conn->spid;
6004 : }
6005 :
6006 : /**
6007 : * \ingroup dblib_core
6008 : * \brief Associate client-allocated (and defined) data with a \c DBPROCESS.
6009 : *
6010 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6011 : * \param ptr address of client-defined data.
6012 : * \remarks \a ptr is the location of user data that \c db-lib will associate with \a dbproc.
6013 : * The client allocates the buffer addressed by \a ptr. \c db-lib never examines or uses the information;
6014 : * it just stashes the pointer for later retrieval by the application with \c dbgetuserdata().
6015 : * \sa dbgetuserdata().
6016 : */
6017 : void
6018 262 : dbsetuserdata(DBPROCESS * dbproc, BYTE * ptr)
6019 : {
6020 262 : tdsdump_log(TDS_DBG_FUNC, "dbsetuserdata(%p, %p)\n", dbproc, ptr);
6021 262 : CHECK_PARAMETER(dbproc, SYBENULL, );
6022 :
6023 262 : dbproc->user_data = ptr;
6024 : }
6025 :
6026 : /**
6027 : * \ingroup dblib_core
6028 : * \brief Get address of user-allocated data from a \c DBPROCESS.
6029 : *
6030 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6031 : * \return address of user-defined data that \c db-lib associated with \a dbproc when the client called dbsetuserdata().
6032 : * \retval undefined (probably \c NULL) dbsetuserdata() was not previously called.
6033 : * \sa dbsetuserdata().
6034 : */
6035 : BYTE *
6036 194 : dbgetuserdata(DBPROCESS * dbproc)
6037 : {
6038 194 : tdsdump_log(TDS_DBG_FUNC, "dbgetuserdata(%p)\n", dbproc);
6039 194 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
6040 :
6041 194 : return dbproc->user_data;
6042 : }
6043 :
6044 : /**
6045 : * \ingroup dblib_core
6046 : * \brief Specify a db-lib version level.
6047 : *
6048 : * \param version anything, really.
6049 : * \retval SUCCEED Always.
6050 : * \remarks No effect on behavior of \c db-lib in \c FreeTDS.
6051 : * \sa
6052 : */
6053 : RETCODE
6054 40 : dbsetversion(DBINT version)
6055 : {
6056 40 : tdsdump_log(TDS_DBG_FUNC, "dbsetversion(%d)\n", version);
6057 :
6058 40 : switch (version) {
6059 40 : case DBVERSION_42:
6060 : case DBVERSION_46:
6061 : case DBVERSION_100:
6062 : case DBVERSION_70:
6063 : case DBVERSION_71:
6064 : case DBVERSION_72:
6065 : case DBVERSION_73:
6066 : case DBVERSION_74:
6067 40 : g_dblib_version = version;
6068 40 : return SUCCEED;
6069 : default:
6070 : break;
6071 : }
6072 :
6073 0 : dbperror(NULL, SYBEIVERS, 0);
6074 0 : return FAIL;
6075 : }
6076 :
6077 : /**
6078 : * \ingroup dblib_money
6079 : * \brief Copy a DBMONEY value.
6080 : *
6081 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6082 : * \param src address of a DBMONEY structure.
6083 : * \param dest \em output: new money.
6084 : * \retval SUCCEED always, unless \a src or \a dest is \c NULL.
6085 : * \sa
6086 : */
6087 : RETCODE
6088 0 : dbmnycopy(DBPROCESS * dbproc, DBMONEY * src, DBMONEY * dest)
6089 : {
6090 0 : tdsdump_log(TDS_DBG_FUNC, "dbmnycopy(%p, %p, %p)\n", dbproc, src, dest);
6091 0 : CHECK_CONN(FAIL);
6092 0 : CHECK_NULP(src, "dbmnycopy", 2, FAIL);
6093 0 : CHECK_NULP(dest, "dbmnycopy", 3, FAIL);
6094 :
6095 0 : dest->mnylow = src->mnylow;
6096 0 : dest->mnyhigh = src->mnyhigh;
6097 0 : return SUCCEED;
6098 : }
6099 :
6100 :
6101 : /**
6102 : * \ingroup dblib_core
6103 : * \brief Cancel the query currently being retrieved, discarding all pending rows.
6104 : *
6105 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6106 : * \sa
6107 : */
6108 : RETCODE
6109 814 : dbcanquery(DBPROCESS * dbproc)
6110 : {
6111 : TDSRET rc;
6112 : TDS_INT result_type;
6113 :
6114 814 : tdsdump_log(TDS_DBG_FUNC, "dbcanquery(%p)\n", dbproc);
6115 814 : CHECK_CONN(FAIL);
6116 :
6117 : /* Just throw away all pending rows from the last query */
6118 :
6119 814 : rc = tds_process_tokens(dbproc->tds_socket, &result_type, NULL, TDS_STOPAT_ROWFMT|TDS_RETURN_DONE);
6120 :
6121 814 : if (TDS_FAILED(rc))
6122 : return FAIL;
6123 :
6124 814 : dbproc->dbresults_state = _DB_RES_NEXT_RESULT;
6125 :
6126 814 : return SUCCEED;
6127 : }
6128 :
6129 : /**
6130 : * \ingroup dblib_core
6131 : * \brief Erase the command buffer, in case \c DBNOAUTOFREE was set with dbsetopt().
6132 : *
6133 : *
6134 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6135 : * \sa dbcmd(), dbfcmd(), dbgetchar(), dbsqlexec(), dbsqlsend(), dbsetopt(), dbstrcpy(), dbstrlen().
6136 : */
6137 : void
6138 20724 : dbfreebuf(DBPROCESS * dbproc)
6139 : {
6140 20724 : tdsdump_log(TDS_DBG_FUNC, "dbfreebuf(%p)\n", dbproc);
6141 20724 : CHECK_PARAMETER(dbproc, SYBENULL, );
6142 :
6143 20724 : if (dbproc->dbbuf)
6144 20704 : TDS_ZERO_FREE(dbproc->dbbuf);
6145 20724 : dbproc->dbbufsz = 0;
6146 : }
6147 :
6148 : /**
6149 : * \ingroup dblib_core
6150 : * \brief Reset an option.
6151 : *
6152 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6153 : * \param option to be turned off.
6154 : * \param param clearing some options requires a parameter, believe it or not.
6155 : * \retval SUCCEED \a option and \a parameter seem sane.
6156 : * \retval FAIL no such \a option.
6157 : * \remarks Only the following options are recognized:
6158 : - DBARITHABORT
6159 : - DBARITHIGNORE
6160 : - DBCHAINXACTS
6161 : - DBFIPSFLAG
6162 : - DBISOLATION
6163 : - DBNOCOUNT
6164 : - DBNOEXEC
6165 : - DBPARSEONLY
6166 : - DBSHOWPLAN
6167 : - DBSTORPROCID
6168 : - DBQUOTEDIDENT
6169 : - DBSETTIME
6170 : * \sa dbisopt(), dbsetopt().
6171 : */
6172 : RETCODE
6173 20 : dbclropt(DBPROCESS * dbproc, int option, const char param[])
6174 : {
6175 : char *cmd;
6176 :
6177 20 : tdsdump_log(TDS_DBG_FUNC, "dbclropt(%p, %d, %s)\n", dbproc, option, param);
6178 20 : CHECK_CONN(FAIL);
6179 20 : if (option != DBSETTIME) {
6180 0 : CHECK_NULP(param, "dbclropt", 3, FAIL);
6181 : }
6182 :
6183 20 : if ((option < 0) || (option >= DBNUMOPTIONS)) {
6184 : return FAIL;
6185 : }
6186 20 : dbproc->dbopts[option].factive = 0;
6187 : switch (option) {
6188 0 : case DBARITHABORT:
6189 : case DBARITHIGNORE:
6190 : case DBCHAINXACTS:
6191 : case DBFIPSFLAG:
6192 : case DBISOLATION:
6193 : case DBNOCOUNT:
6194 : case DBNOEXEC:
6195 : case DBPARSEONLY:
6196 : case DBSHOWPLAN:
6197 : case DBSTORPROCID:
6198 : case DBQUOTEDIDENT:
6199 : /* server options (on/off) */
6200 0 : if (asprintf(&cmd, "set %s off\n", dbproc->dbopts[option].text) < 0) {
6201 : return FAIL;
6202 : }
6203 0 : dbstring_concat(&(dbproc->dboptcmd), cmd);
6204 0 : free(cmd);
6205 0 : break;
6206 0 : case DBBUFFER:
6207 0 : buffer_set_capacity(dbproc, 1); /* frees row_buf->rows */
6208 0 : return SUCCEED;
6209 : break;
6210 20 : case DBSETTIME:
6211 20 : tds_mutex_lock(&dblib_mutex);
6212 : /*
6213 : * Use global value of query timeout set by dbsettime() if any,
6214 : * otherwise set it to zero just like tds_init_socket() does.
6215 : */
6216 20 : if (g_dblib_ctx.query_timeout > 0) {
6217 10 : dbproc->tds_socket->query_timeout = g_dblib_ctx.query_timeout;
6218 : } else {
6219 10 : dbproc->tds_socket->query_timeout = 0;
6220 : }
6221 20 : tds_mutex_unlock(&dblib_mutex);
6222 20 : return SUCCEED;
6223 : break;
6224 : default:
6225 : break;
6226 : }
6227 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbclropt(option = %d)\n", option);
6228 : return FAIL;
6229 : }
6230 :
6231 : /**
6232 : * \ingroup dblib_core
6233 : * \brief Get value of an option
6234 : *
6235 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6236 : * \param option the option
6237 : * \param param a parameter to \a option.
6238 : * \sa dbclropt(), dbsetopt().
6239 : */
6240 : DBBOOL
6241 180 : dbisopt(DBPROCESS * dbproc, int option, const char param[])
6242 : {
6243 180 : tdsdump_log(TDS_DBG_FUNC, "dbisopt(%p, %d, %s)\n", dbproc, option, param);
6244 180 : CHECK_PARAMETER(dbproc, SYBENULL, FALSE);
6245 : /* sometimes param can be NULL */
6246 :
6247 180 : if ((option < 0) || (option >= DBNUMOPTIONS)) {
6248 : return FALSE;
6249 : }
6250 180 : return dbproc->dbopts[option].factive;
6251 : }
6252 :
6253 : /** \internal
6254 : * \ingroup dblib_internal
6255 : * \brief Get number of the row currently being read.
6256 : *
6257 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6258 : * \return ostensibly the row number, or 0 if no rows have been read yet.
6259 : * \retval 0 Always.
6260 : * \sa DBCURROW(), dbclrbuf(), DBFIRSTROW(), dbgetrow(), DBLASTROW(), dbnextrow(), dbsetopt(),.
6261 : * \todo Unimplemented.
6262 : */
6263 : DBINT
6264 0 : dbcurrow(DBPROCESS * dbproc)
6265 : {
6266 0 : tdsdump_log(TDS_DBG_FUNC, "dbcurrow(%p)\n", dbproc);
6267 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
6268 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbcurrow()\n");
6269 : return 0;
6270 : }
6271 :
6272 :
6273 : /** \internal
6274 : * \ingroup dblib_internal
6275 : * \brief Get returned row's type.
6276 : *
6277 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6278 : * \sa DBROWTYPE().
6279 : */
6280 : STATUS
6281 0 : dbrowtype(DBPROCESS * dbproc)
6282 : {
6283 0 : tdsdump_log(TDS_DBG_FUNC, "dbrowtype(%p)\n", dbproc);
6284 0 : CHECK_PARAMETER(dbproc, SYBENULL, NO_MORE_ROWS);
6285 0 : return dbproc->row_type;
6286 : }
6287 :
6288 :
6289 : /** \internal
6290 : * \ingroup dblib_internal
6291 : * \brief Get number of the row just returned.
6292 : *
6293 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6294 : * \sa DBCURROW().
6295 : * \todo Unimplemented.
6296 : */
6297 : int
6298 0 : dbcurcmd(DBPROCESS * dbproc)
6299 : {
6300 0 : tdsdump_log(TDS_DBG_FUNC, "dbcurcmd(%p)\n", dbproc);
6301 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
6302 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbcurcmd()\n");
6303 : return 0;
6304 : }
6305 :
6306 :
6307 : /**
6308 : * \ingroup dblib_core
6309 : * \brief See if more commands are to be processed.
6310 : *
6311 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6312 : * \sa DBMORECMDS(). DBCMDROW(), dbresults(), DBROWS(), DBROWTYPE().
6313 : */
6314 : RETCODE
6315 30 : dbmorecmds(DBPROCESS * dbproc)
6316 : {
6317 30 : tdsdump_log(TDS_DBG_FUNC, "dbmorecmds(%p)\n", dbproc);
6318 30 : CHECK_CONN(FAIL);
6319 :
6320 30 : if (dbproc->tds_socket->res_info == NULL) {
6321 : return FAIL;
6322 : }
6323 :
6324 30 : if (!dbproc->tds_socket->res_info->more_results) {
6325 20 : tdsdump_log(TDS_DBG_FUNC, "more_results is false; returns FAIL\n");
6326 : return FAIL;
6327 : }
6328 :
6329 10 : tdsdump_log(TDS_DBG_FUNC, "more_results is true; returns SUCCEED\n");
6330 :
6331 : return SUCCEED;
6332 : }
6333 :
6334 : /**
6335 : * \ingroup dblib_rpc
6336 : * \brief Get datatype of a stored procedure's return parameter.
6337 : *
6338 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6339 : * \param retnum Nth return parameter, between 1 and \c dbnumrets().
6340 : * \return SYB* datatype token, or -1 if \a retnum is out of range.
6341 : * \sa dbnextrow(), dbnumrets(), dbprtype(), dbresults(), dbretdata(), dbretlen(), dbretname(), dbrpcinit(), dbrpcparam().
6342 : */
6343 : int
6344 66 : dbrettype(DBPROCESS * dbproc, int retnum)
6345 : {
6346 : TDSCOLUMN *colinfo;
6347 :
6348 66 : tdsdump_log(TDS_DBG_FUNC, "dbrettype(%p, %d)\n", dbproc, retnum);
6349 66 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
6350 66 : assert(dbproc->tds_socket);
6351 66 : assert(dbproc->tds_socket->param_info);
6352 :
6353 66 : if (retnum < 1 || retnum > dbproc->tds_socket->param_info->num_cols)
6354 : return -1;
6355 :
6356 66 : colinfo = dbproc->tds_socket->param_info->columns[retnum - 1];
6357 :
6358 66 : return tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
6359 : }
6360 :
6361 : /**
6362 : * \ingroup dblib_core
6363 : * \brief Get size of the command buffer, in bytes.
6364 : *
6365 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6366 : * \sa dbcmd(), dbfcmd(), dbfreebuf(), dbgetchar(), dbstrcpy().
6367 : */
6368 : int
6369 0 : dbstrlen(DBPROCESS * dbproc)
6370 : {
6371 0 : tdsdump_log(TDS_DBG_FUNC, "dbstrlen(%p)\n", dbproc);
6372 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
6373 :
6374 0 : return dbproc->dbbufsz;
6375 : }
6376 :
6377 :
6378 : /**
6379 : * \ingroup dblib_core
6380 : * \brief Get address of a position in the command buffer.
6381 : *
6382 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6383 : * \param pos offset within the command buffer, starting at \em 0.
6384 : * \remarks A bit overspecialized, this one.
6385 : * \sa dbcmd(), dbfcmd(), dbfreebuf(), dbstrcpy(), dbstrlen(),
6386 : */
6387 : char *
6388 490 : dbgetchar(DBPROCESS * dbproc, int pos)
6389 : {
6390 490 : tdsdump_log(TDS_DBG_FUNC, "dbgetchar(%p, %d)\n", dbproc, pos);
6391 490 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
6392 490 : tdsdump_log(TDS_DBG_FUNC, "dbgetchar() bufsz = %d, pos = %d\n", dbproc->dbbufsz, pos);
6393 :
6394 490 : if (dbproc->dbbufsz > 0) {
6395 490 : if (pos >= 0 && pos < (dbproc->dbbufsz - 1))
6396 480 : return (char *) &dbproc->dbbuf[pos];
6397 : return NULL;
6398 : }
6399 : return NULL;
6400 : }
6401 :
6402 : /**
6403 : * \ingroup dblib_core
6404 : * \brief Get a copy of a chunk of the command buffer.
6405 : *
6406 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6407 : * \param start position in the command buffer to start copying from, starting from \em 0.
6408 : * If start is past the end of the command buffer, dbstrcpy() inserts a null terminator at dest[0].
6409 : * \param numbytes number of bytes to copy.
6410 : - If -1, dbstrcpy() copies the whole command buffer.
6411 : - If 0 dbstrcpy() writes a \c NULL to dest[0].
6412 : - If the command buffer contains fewer than \a numbytes (taking \a start into account) dbstrcpy()
6413 : copies the rest of it.
6414 : * \param dest \em output: the buffer to write to. Make sure it's big enough.
6415 : * \retval SUCCEED the inputs were valid and \a dest was affected.
6416 : * \retval FAIL \a start < 0 or \a numbytes < -1.
6417 : * \sa dbcmd(), dbfcmd(), dbfreebuf(), dbgetchar(), dbstrlen().
6418 : */
6419 : RETCODE
6420 0 : dbstrcpy(DBPROCESS * dbproc, int start, int numbytes, char *dest)
6421 : {
6422 0 : tdsdump_log(TDS_DBG_FUNC, "dbstrcpy(%p, %d, %d, %s)\n", dbproc, start, numbytes, dest);
6423 0 : CHECK_CONN(FAIL);
6424 0 : CHECK_NULP(dest, "dbstrcpy", 4, FAIL);
6425 :
6426 0 : if (start < 0) {
6427 0 : dbperror(dbproc, SYBENSIP, 0);
6428 0 : return FAIL;
6429 : }
6430 0 : if (numbytes < -1) {
6431 0 : dbperror(dbproc, SYBEBNUM, 0);
6432 0 : return FAIL;
6433 : }
6434 0 : dest[0] = 0; /* start with empty string being returned */
6435 0 : if (dbproc->dbbufsz > 0 && start < dbproc->dbbufsz) {
6436 0 : if (numbytes == -1)
6437 0 : numbytes = dbproc->dbbufsz - start;
6438 0 : if (start + numbytes > dbproc->dbbufsz)
6439 0 : numbytes = dbproc->dbbufsz - start;
6440 0 : memcpy(dest, (char *) &dbproc->dbbuf[start], numbytes);
6441 0 : dest[numbytes] = '\0';
6442 : }
6443 : return SUCCEED;
6444 : }
6445 :
6446 : /**
6447 : * \ingroup dblib_core
6448 : * \brief safely quotes character values in SQL text.
6449 : *
6450 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6451 : * \param src input string.
6452 : * \param srclen length of \a src in bytes, or -1 to indicate it's null-terminated.
6453 : * \param dest \em output: client-provided output buffer.
6454 : * \param destlen size of \a dest in bytes, or -1 to indicate it's "big enough" and the data should be null-terminated.
6455 : * \param quotetype
6456 : - \c DBSINGLE Doubles all single quotes (').
6457 : - \c DBDOUBLE Doubles all double quotes (").
6458 : - \c DBBOTH Doubles all single and double quotes.
6459 : * \retval SUCCEED everything worked.
6460 : * \retval FAIL no such \a quotetype, or insufficient room in \a dest.
6461 : * \sa dbcmd(), dbfcmd().
6462 : */
6463 : RETCODE
6464 50 : dbsafestr(DBPROCESS * dbproc, const char *src, DBINT srclen, char *dest, DBINT destlen, int quotetype)
6465 : {
6466 50 : int i, j = 0;
6467 50 : bool squote = false, dquote = false;
6468 :
6469 50 : tdsdump_log(TDS_DBG_FUNC, "dbsafestr(%p, %s, %d, %s, %d, %d)\n", dbproc, src, srclen, dest, destlen, quotetype);
6470 50 : CHECK_NULP(src, "dbsafestr", 2, FAIL);
6471 50 : CHECK_NULP(dest, "dbsafestr", 4, FAIL);
6472 :
6473 : /* check parameters */
6474 50 : if (srclen < -1 || destlen < -1)
6475 : return FAIL;
6476 :
6477 50 : if (srclen == -1)
6478 50 : srclen = (int)strlen(src);
6479 :
6480 50 : if (quotetype == DBSINGLE || quotetype == DBBOTH)
6481 40 : squote = true;
6482 50 : if (quotetype == DBDOUBLE || quotetype == DBBOTH)
6483 30 : dquote = true;
6484 :
6485 : /* return FAIL if invalid quotetype */
6486 50 : if (!dquote && !squote)
6487 : return FAIL;
6488 :
6489 :
6490 1790 : for (i = 0; i < srclen; i++) {
6491 :
6492 : /* dbsafestr returns fail if the deststr is not big enough */
6493 : /* need one char + one for terminator */
6494 1800 : if (destlen >= 0 && j >= destlen)
6495 : return FAIL;
6496 :
6497 1790 : if (squote && src[i] == '\'')
6498 40 : dest[j++] = '\'';
6499 1750 : else if (dquote && src[i] == '\"')
6500 30 : dest[j++] = '\"';
6501 :
6502 1790 : if (destlen >= 0 && j >= destlen)
6503 : return FAIL;
6504 :
6505 1790 : dest[j++] = src[i];
6506 : }
6507 :
6508 40 : if (destlen >= 0 && j >= destlen)
6509 : return FAIL;
6510 :
6511 30 : dest[j] = '\0';
6512 30 : return SUCCEED;
6513 : }
6514 :
6515 : /**
6516 : * \ingroup dblib_core
6517 : * \brief Print a token value's name to a buffer
6518 : *
6519 : * \param token server SYB* value, e.g. SYBINT.
6520 :
6521 : * \return ASCII null-terminated string.
6522 : * \sa dbaltop(), dbalttype(), dbcoltype(), dbrettype().
6523 : */
6524 : const char *
6525 24 : dbprtype(int token)
6526 : {
6527 24 : tdsdump_log(TDS_DBG_FUNC, "dbprtype(%d)\n", token);
6528 24 : return tds_prtype(token);
6529 : }
6530 :
6531 : /**
6532 : * \ingroup dblib_core
6533 : * \brief describe table column attributes with a single call (Freetds-only API function modelled on dbcolinfo)
6534 : *
6535 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6536 : * \param column Nth in the result set, starting from 1.
6537 : * \param pdbcol address of structure to be populated by this function.
6538 : * \return SUCCEED or FAIL.
6539 : * \sa dbcolinfo().
6540 : */
6541 : RETCODE
6542 30 : dbtablecolinfo(DBPROCESS *dbproc, DBINT column, DBCOL *pdbcol)
6543 : {
6544 : TDSCOLUMN *colinfo;
6545 :
6546 30 : tdsdump_log(TDS_DBG_FUNC, "dbtablecolinfo(%p, %d, %p)\n", dbproc, column, pdbcol);
6547 30 : CHECK_CONN(FAIL);
6548 30 : CHECK_NULP(pdbcol, "dbtablecolinfo", 3, FAIL);
6549 30 : DBPERROR_RETURN(pdbcol->SizeOfStruct != sizeof(DBCOL)
6550 : && pdbcol->SizeOfStruct != sizeof(DBCOL2), SYBECOLSIZE);
6551 :
6552 30 : colinfo = dbcolptr(dbproc, column);
6553 30 : if (!colinfo)
6554 : return FAIL;
6555 :
6556 60 : strlcpy(pdbcol->Name, tds_dstr_cstr(&colinfo->column_name), sizeof(pdbcol->Name));
6557 : /* returns table_column_name if available */
6558 60 : if (tds_dstr_isempty(&colinfo->table_column_name))
6559 16 : strlcpy(pdbcol->ActualName, tds_dstr_cstr(&colinfo->column_name), sizeof(pdbcol->ActualName));
6560 : else
6561 44 : strlcpy(pdbcol->ActualName, tds_dstr_cstr(&colinfo->table_column_name), sizeof(pdbcol->ActualName));
6562 60 : strlcpy(pdbcol->TableName, tds_dstr_cstr(&colinfo->table_name), sizeof(pdbcol->TableName));
6563 :
6564 30 : pdbcol->Type = tds_get_conversion_type(colinfo->column_type, colinfo->column_size);
6565 30 : pdbcol->UserType = colinfo->column_usertype;
6566 30 : pdbcol->MaxLength = colinfo->column_size;
6567 30 : if (colinfo->column_nullable)
6568 0 : pdbcol->Null = TRUE;
6569 : else
6570 30 : pdbcol->Null = FALSE;
6571 :
6572 30 : pdbcol->VarLength = FALSE;
6573 :
6574 30 : if (colinfo->column_nullable
6575 30 : || is_nullable_type(colinfo->column_type))
6576 0 : pdbcol->VarLength = TRUE;
6577 :
6578 30 : pdbcol->Precision = colinfo->column_prec;
6579 30 : pdbcol->Scale = colinfo->column_scale;
6580 :
6581 30 : pdbcol->Updatable = colinfo->column_writeable ? TRUE : FALSE;
6582 30 : pdbcol->Identity = colinfo->column_identity ? TRUE : FALSE;
6583 :
6584 30 : if (pdbcol->SizeOfStruct >= sizeof(DBCOL2)) {
6585 30 : DBCOL2 *col = (DBCOL2 *) pdbcol;
6586 : TDSRET rc;
6587 :
6588 30 : col->ServerType = colinfo->on_server.column_type;
6589 30 : col->ServerMaxLength = colinfo->on_server.column_size;
6590 :
6591 30 : rc = tds_get_column_declaration(dbproc->tds_socket, colinfo, col->ServerTypeDeclaration);
6592 30 : if (TDS_FAILED(rc))
6593 : return FAIL;
6594 : }
6595 :
6596 : return SUCCEED;
6597 : }
6598 :
6599 : /**
6600 : * \ingroup dblib_core
6601 : * \brief Get text timestamp for a column in the current row.
6602 : *
6603 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6604 : * \param column number of the column in the \c SELECT statement, starting at 1.
6605 : * \return timestamp for \a column, may be NULL.
6606 : * \sa dbtxptr(), dbwritetext().
6607 : */
6608 : DBBINARY *
6609 56 : dbtxtimestamp(DBPROCESS * dbproc, int column)
6610 : {
6611 : TDSCOLUMN *colinfo;
6612 : TDSBLOB *blob;
6613 :
6614 56 : tdsdump_log(TDS_DBG_FUNC, "dbtxtimestamp(%p, %d)\n", dbproc, column);
6615 :
6616 56 : colinfo = dbcolptr(dbproc, column);
6617 56 : if (!colinfo || !is_blob_col(colinfo))
6618 : return NULL;
6619 :
6620 56 : blob = (TDSBLOB *) colinfo->column_data;
6621 :
6622 : /* test if valid */
6623 56 : if (!blob->valid_ptr)
6624 : return NULL;
6625 :
6626 36 : return (DBBINARY *) blob->timestamp;
6627 : }
6628 :
6629 : /**
6630 : * \ingroup dblib_core
6631 : * \brief Get text pointer for a column in the current row.
6632 : *
6633 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6634 : * \param column number of the column in the \c SELECT statement, starting at 1.
6635 : * \return text pointer for \a column, may be NULL.
6636 : * \sa dbtxtimestamp(), dbwritetext().
6637 : */
6638 : DBBINARY *
6639 56 : dbtxptr(DBPROCESS * dbproc, int column)
6640 : {
6641 : TDSCOLUMN *colinfo;
6642 : TDSBLOB *blob;
6643 :
6644 56 : tdsdump_log(TDS_DBG_FUNC, "dbtxptr(%p, %d)\n", dbproc, column);
6645 :
6646 56 : colinfo = dbcolptr(dbproc, column);
6647 56 : if (!colinfo || !is_blob_col(colinfo))
6648 : return NULL;
6649 :
6650 56 : blob = (TDSBLOB *) colinfo->column_data;
6651 :
6652 : /* test if valid */
6653 56 : if (!blob->valid_ptr)
6654 : return NULL;
6655 :
6656 36 : return (DBBINARY *) blob->textptr;
6657 : }
6658 :
6659 : /**
6660 : * \ingroup dblib_core
6661 : * \brief Send text or image data to the server.
6662 : *
6663 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6664 : * \param objname table name
6665 : * \param textptr text pointer to be modified, obtained from dbtxptr().
6666 : * \param textptrlen \em Ignored. Supposed to be \c DBTXPLEN.
6667 : * \param timestamp text timestamp to be modified, obtained from dbtxtimestamp() or dbtxtsnewval(), may be \c NULL.
6668 : * \param log \c TRUE if the operation is to be recorded in the transaction log.
6669 : * \param size overall size of the data (in total, not just for this call), in bytes. A guideline, must not overstate the case.
6670 : * \param text the chunk of data to write.
6671 : * \retval SUCCEED everything worked.
6672 : * \retval FAIL not sent, possibly because \a timestamp is invalid or was changed in the database since it was fetched.
6673 : * \sa dbmoretext(), dbtxptr(), dbtxtimestamp(), dbwritetext(), dbtxtsput().
6674 : */
6675 : RETCODE
6676 36 : dbwritetext(DBPROCESS * dbproc, char *objname, DBBINARY * textptr, DBTINYINT textptrlen, DBBINARY * timestamp, DBBOOL log,
6677 : DBINT size, BYTE * text)
6678 : {
6679 : char textptr_string[35]; /* 16 * 2 + 2 (0x) + 1 */
6680 : char timestamp_string[19]; /* 8 * 2 + 2 (0x) + 1 */
6681 : TDS_INT result_type;
6682 :
6683 36 : tdsdump_log(TDS_DBG_FUNC, "dbwritetext(%p, %s, %p, %d, %p, %d)\n",
6684 : dbproc, objname, textptr, textptrlen, timestamp, log);
6685 36 : CHECK_CONN(FAIL);
6686 36 : CHECK_NULP(objname, "dbwritetext", 2, FAIL);
6687 36 : CHECK_NULP(textptr, "dbwritetext", 3, FAIL);
6688 36 : CHECK_NULP(timestamp, "dbwritetext", 5, FAIL);
6689 36 : CHECK_PARAMETER(size, SYBEZTXT, FAIL);
6690 :
6691 : if (IS_TDSDEAD(dbproc->tds_socket))
6692 : return FAIL;
6693 :
6694 36 : if (textptrlen > DBTXPLEN)
6695 : return FAIL;
6696 :
6697 36 : dbconvert(dbproc, SYBBINARY, (BYTE *) textptr, textptrlen, SYBCHAR, (BYTE *) textptr_string, -1);
6698 36 : dbconvert(dbproc, SYBBINARY, (BYTE *) timestamp, 8, SYBCHAR, (BYTE *) timestamp_string, -1);
6699 :
6700 36 : dbproc->dbresults_state = _DB_RES_INIT;
6701 :
6702 36 : if (dbproc->tds_socket->state == TDS_PENDING) {
6703 0 : const TDSRET ret = tds_process_tokens(dbproc->tds_socket, &result_type, NULL, TDS_TOKEN_TRAILING);
6704 0 : if (ret != TDS_NO_MORE_RESULTS) {
6705 0 : dbperror(dbproc, SYBERPND, 0);
6706 0 : dbproc->command_state = DBCMDSENT;
6707 0 : return FAIL;
6708 : }
6709 : }
6710 :
6711 36 : if (TDS_FAILED(tds_writetext_start(dbproc->tds_socket, objname,
6712 : textptr_string, timestamp_string, (log == TRUE), size)))
6713 : return FAIL;
6714 :
6715 36 : if (!text) {
6716 18 : dbproc->text_size = size;
6717 18 : dbproc->text_sent = 0;
6718 18 : return SUCCEED;
6719 : }
6720 :
6721 18 : tds_writetext_continue(dbproc->tds_socket, text, size);
6722 18 : tds_writetext_end(dbproc->tds_socket);
6723 18 : dbproc->text_sent = 0;
6724 :
6725 18 : if (dbsqlok(dbproc) == SUCCEED && dbresults(dbproc) == SUCCEED)
6726 : return SUCCEED;
6727 : return FAIL;
6728 : }
6729 :
6730 : /**
6731 : * \ingroup dblib_core
6732 : * \brief Fetch part of a text or image value from the server.
6733 : *
6734 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6735 : * \param buf \em output: buffer into which text will be placed.
6736 : * \param bufsize size of \a buf, in bytes.
6737 : * \return
6738 : - \c >0 count of bytes placed in \a buf.
6739 : - \c 0 end of row.
6740 : - \c -1 \em error, no result set ready for \a dbproc.
6741 : - \c NO_MORE_ROWS all rows read, no further data.
6742 : * \sa dbmoretext(), dbnextrow(), dbwritetext().
6743 : */
6744 : STATUS
6745 636 : dbreadtext(DBPROCESS * dbproc, void *buf, DBINT bufsize)
6746 : {
6747 : TDSSOCKET *tds;
6748 : TDSCOLUMN *curcol;
6749 : int cpbytes, bytes_avail;
6750 : TDS_INT result_type;
6751 : TDSRESULTINFO *resinfo;
6752 :
6753 636 : tdsdump_log(TDS_DBG_FUNC, "dbreadtext(%p, %p, %d)\n", dbproc, buf, bufsize);
6754 636 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
6755 636 : CHECK_NULP(buf, "dbreadtext", 2, -1);
6756 :
6757 636 : tds = dbproc->tds_socket;
6758 :
6759 636 : if (!tds || !tds->res_info || !tds->res_info->columns[0])
6760 : return -1;
6761 :
6762 636 : resinfo = tds->res_info;
6763 636 : curcol = resinfo->columns[0];
6764 :
6765 : /*
6766 : * if the current position is beyond the end of the text
6767 : * set pos to 0 and return 0 to denote the end of the
6768 : * text
6769 : */
6770 636 : if (curcol->column_textpos && curcol->column_textpos >= curcol->column_cur_size) {
6771 36 : curcol->column_textpos = 0;
6772 36 : return 0;
6773 : }
6774 :
6775 : /*
6776 : * if pos is 0 (first time through or last call exhausted the text)
6777 : * then read another row
6778 : */
6779 :
6780 600 : if (curcol->column_textpos == 0) {
6781 96 : const int mask = TDS_STOPAT_ROWFMT|TDS_STOPAT_DONE|TDS_RETURN_ROW|TDS_RETURN_COMPUTE;
6782 96 : buffer_save_row(dbproc);
6783 96 : switch (tds_process_tokens(dbproc->tds_socket, &result_type, NULL, mask)) {
6784 96 : case TDS_SUCCESS:
6785 96 : if (result_type == TDS_ROW_RESULT || result_type == TDS_COMPUTE_RESULT)
6786 : break;
6787 : case TDS_NO_MORE_RESULTS:
6788 : return NO_MORE_ROWS;
6789 0 : default:
6790 0 : return -1;
6791 : }
6792 552 : }
6793 :
6794 : /* find the number of bytes to return */
6795 552 : bytes_avail = TDS_MAX(curcol->column_cur_size, 0) - curcol->column_textpos;
6796 552 : cpbytes = bytes_avail > bufsize ? bufsize : bytes_avail;
6797 552 : memcpy(buf, &((TDSBLOB *) curcol->column_data)->textvalue[curcol->column_textpos], cpbytes);
6798 552 : curcol->column_textpos += cpbytes;
6799 552 : return cpbytes;
6800 : }
6801 :
6802 : /**
6803 : * \ingroup dblib_core
6804 : * \brief Send chunk of a text/image value to the server.
6805 : *
6806 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6807 : * \param size count of bytes to send.
6808 : * \param text textpointer, obtained from dbtxptr.
6809 : * \retval SUCCEED always.
6810 : * \sa dbtxptr(), dbtxtimestamp(), dbwritetext().
6811 : * \todo Check return value of called functions and return \c FAIL if appropriate.
6812 : */
6813 : RETCODE
6814 270 : dbmoretext(DBPROCESS * dbproc, DBINT size, const BYTE text[])
6815 : {
6816 270 : tdsdump_log(TDS_DBG_FUNC, "dbmoretext(%p, %d, %p)\n", dbproc, size, text);
6817 270 : CHECK_CONN(FAIL);
6818 270 : CHECK_NULP(text, "dbmoretext", 3, FAIL);
6819 :
6820 270 : assert(dbproc->text_size >= dbproc->text_sent);
6821 :
6822 : /* TODO this test should be inside tds_writetext_continue, currently not */
6823 270 : if (size < 0 || size > dbproc->text_size - dbproc->text_sent)
6824 : return FAIL;
6825 :
6826 270 : if (size) {
6827 270 : if (TDS_FAILED(tds_writetext_continue(dbproc->tds_socket, text, size)))
6828 : return FAIL;
6829 270 : dbproc->text_sent += size;
6830 :
6831 270 : if (dbproc->text_sent == dbproc->text_size) {
6832 18 : tds_writetext_end(dbproc->tds_socket);
6833 18 : dbproc->text_sent = 0;
6834 : }
6835 : }
6836 :
6837 : return SUCCEED;
6838 : }
6839 :
6840 : /**
6841 : * \ingroup dblib_core
6842 : * \brief Record to a file all SQL commands sent to the server
6843 : *
6844 : * \param filename name of file to write to.
6845 : * \remarks Files are named \em filename.n, where n is an integer, starting with 0, and incremented with each callto dbopen().
6846 : * \sa dbopen(), TDSDUMP environment variable().
6847 : */
6848 : void
6849 0 : dbrecftos(const char filename[])
6850 : {
6851 : char *f;
6852 :
6853 0 : tdsdump_log(TDS_DBG_FUNC, "dbrecftos(%s)\n", filename);
6854 0 : if (filename == NULL) {
6855 0 : dbperror(NULL, SYBENULP, 0);
6856 0 : return;
6857 : }
6858 :
6859 0 : f = strdup(filename);
6860 0 : if (!f) {
6861 0 : dbperror(NULL, SYBEMEM, 0);
6862 0 : return;
6863 : }
6864 :
6865 0 : tds_mutex_lock(&dblib_mutex);
6866 0 : free(g_dblib_ctx.recftos_filename);
6867 0 : g_dblib_ctx.recftos_filename = f;
6868 0 : g_dblib_ctx.recftos_filenum = 0;
6869 0 : tds_mutex_unlock(&dblib_mutex);
6870 : }
6871 :
6872 : /** \internal
6873 : * \ingroup dblib_internal
6874 : * \brief Get the TDS version in use for \a dbproc.
6875 : *
6876 : *
6877 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6878 : * \return a \c DBTDS* token.
6879 : * \remarks The integer values of the constants are counterintuitive.
6880 : * \sa DBTDS().
6881 : */
6882 : int
6883 464 : dbtds(DBPROCESS * dbproc)
6884 : {
6885 464 : tdsdump_log(TDS_DBG_FUNC, "dbtds(%p)\n", dbproc);
6886 464 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
6887 :
6888 464 : if (dbproc->tds_socket) {
6889 464 : switch (dbproc->tds_socket->conn->tds_version) {
6890 : case 0x402:
6891 : return DBTDS_4_2;
6892 0 : case 0x406:
6893 0 : return DBTDS_4_6;
6894 78 : case 0x500:
6895 78 : return DBTDS_5_0;
6896 0 : case 0x700:
6897 0 : return DBTDS_7_0;
6898 184 : case 0x701:
6899 184 : return DBTDS_7_1;
6900 0 : case 0x702:
6901 0 : return DBTDS_7_2;
6902 100 : case 0x703:
6903 100 : return DBTDS_7_3;
6904 102 : case 0x704:
6905 102 : return DBTDS_7_4;
6906 0 : case 0x800:
6907 0 : return DBTDS_8_0_;
6908 0 : default:
6909 0 : return DBTDS_UNKNOWN;
6910 : }
6911 : }
6912 : return -1;
6913 : }
6914 :
6915 : /**
6916 : * \ingroup dblib_core
6917 : * \brief See which version of db-lib is in use.
6918 : *
6919 : * \return null-terminated ASCII string representing the version of db-lib.
6920 : * \remarks FreeTDS returns the CVS version string of dblib.c.
6921 : * \sa
6922 : */
6923 : const char *
6924 0 : dbversion(void)
6925 : {
6926 0 : tdsdump_log(TDS_DBG_FUNC, "dbversion(void)\n");
6927 0 : return TDS_VERSION_NO;
6928 : }
6929 :
6930 : #if defined(DBLIB_UNIMPLEMENTED)
6931 : /**
6932 : * \ingroup dblib_core
6933 : * \brief Set the default character set.
6934 : *
6935 : * \param charset null-terminated ASCII string, matching a row in master..syscharsets.
6936 : * \sa dbsetdeflang(), dbsetdefcharset(), dblogin(), dbopen().
6937 : * \todo Unimplemented.
6938 : */
6939 : RETCODE
6940 : dbsetdefcharset(char *charset)
6941 : {
6942 : tdsdump_log(TDS_DBG_FUNC, "dbsetdefcharset(%s)\n", charset);
6943 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbsetdefcharset()\n");
6944 : return SUCCEED;
6945 : }
6946 :
6947 : /**
6948 : * \ingroup dblib_core
6949 : * \brief Ready execution of a registered procedure.
6950 : *
6951 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6952 : * \param procedure_name to call.
6953 : * \param namelen size of \a procedure_name, in bytes.
6954 : * \sa dbregparam(), dbregexec(), dbregwatch(), dbreglist(), dbregwatchlist
6955 : * \todo Unimplemented.
6956 : */
6957 : RETCODE
6958 : dbreginit(DBPROCESS * dbproc, DBCHAR * procedure_name, DBSMALLINT namelen)
6959 : {
6960 : tdsdump_log(TDS_DBG_FUNC, "dbreginit(%p, %s, %d)\n", dbproc, procedure_name, namelen);
6961 : CHECK_CONN(FAIL);
6962 : CHECK_NULP(procedure_name, "dbreginit", 2, FAIL);
6963 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbreginit()\n");
6964 : return SUCCEED;
6965 : }
6966 :
6967 :
6968 : /**
6969 : * \ingroup dblib_core
6970 : * \brief Get names of Open Server registered procedures.
6971 : *
6972 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6973 : * \sa dbregparam(), dbregexec(), dbregwatch(), dbreglist(), dbregwatchlist().
6974 : * \todo Unimplemented.
6975 : */
6976 : RETCODE
6977 : dbreglist(DBPROCESS * dbproc)
6978 : {
6979 : tdsdump_log(TDS_DBG_FUNC, "dbreglist(%p)\n", dbproc);
6980 : CHECK_CONN(FAIL);
6981 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbreglist()\n");
6982 : return SUCCEED;
6983 : }
6984 :
6985 :
6986 : /**
6987 : * \ingroup dblib_core
6988 : * \brief Describe parameter of registered procedure .
6989 : *
6990 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
6991 : * \param param_name
6992 : * \param type \c SYB* datatype.
6993 : * \param datalen size of \a data.
6994 : * \param data address of buffer holding value for the parameter.
6995 : * \sa dbreginit(), dbregexec(), dbnpdefine(), dbnpcreate(), dbregwatch().
6996 : * \todo Unimplemented.
6997 : */
6998 : RETCODE
6999 : dbregparam(DBPROCESS * dbproc, char *param_name, int type, DBINT datalen, BYTE * data)
7000 : {
7001 : tdsdump_log(TDS_DBG_FUNC, "dbregparam(%p, %s, %d, %d, %p)\n", dbproc, param_name, type, datalen, data);
7002 : CHECK_CONN(FAIL);
7003 : CHECK_NULP(param_name, "dbregparam", 2, FAIL);
7004 : CHECK_NULP(data, "dbregparam", 5, FAIL);
7005 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbregparam()\n");
7006 : return SUCCEED;
7007 : }
7008 :
7009 :
7010 : /**
7011 : * \ingroup dblib_core
7012 : * \brief Execute a registered procedure.
7013 : *
7014 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7015 : * \param options
7016 : * \sa dbreginit(), dbregparam(), dbregwatch(), dbregnowatch
7017 : * \todo Unimplemented.
7018 : */
7019 : RETCODE
7020 : dbregexec(DBPROCESS * dbproc, DBUSMALLINT options)
7021 : {
7022 : tdsdump_log(TDS_DBG_FUNC, "dbregexec(%p, %d)\n", dbproc, options);
7023 : CHECK_CONN(FAIL);
7024 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbregexec()\n");
7025 : return SUCCEED;
7026 : }
7027 : #endif
7028 :
7029 :
7030 : /**
7031 : * \ingroup dblib_datetime
7032 : * \brief Get name of a month, in some human language.
7033 : *
7034 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7035 : * \param language \em ignored.
7036 : * \param monthnum number of the month, starting with 1.
7037 : * \param shortform set to \c TRUE for a three letter output ("Jan" - "Dec"), else zero.
7038 : * \return address of null-terminated ASCII string, or \c NULL on error.
7039 : * \sa db12hour(), dbdateorder(), dbdayname(), DBSETLNATLANG(), dbsetopt().
7040 : */
7041 : const char *
7042 0 : dbmonthname(DBPROCESS * dbproc, char *language, int monthnum, DBBOOL shortform)
7043 : {
7044 : static const char shortmon[][4] = {
7045 : "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
7046 : };
7047 : static const char longmon[][12] = {
7048 : "January", "February", "March", "April", "May", "June",
7049 : "July", "August", "September", "October", "November", "December"
7050 : };
7051 :
7052 0 : tdsdump_log(TDS_DBG_FUNC, "dbmonthname(%p, %s, %d, %d)\n", dbproc, language, monthnum, shortform);
7053 0 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
7054 0 : CHECK_NULP(language, "dbmonthname", 2, NULL);
7055 :
7056 0 : if (monthnum < 1 || monthnum > 12)
7057 : return NULL;
7058 0 : return (shortform) ? shortmon[monthnum - 1] : longmon[monthnum - 1];
7059 : }
7060 :
7061 : /**
7062 : * \ingroup dblib_core
7063 : * \brief See if a command caused the current database to change.
7064 : *
7065 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7066 : * \return name of new database, if changed, as a null-terminated ASCII string, else \c NULL.
7067 :
7068 : * \sa dbname(), dbresults(), dbsqlexec(), dbsqlsend(), dbuse().
7069 : */
7070 : char *
7071 0 : dbchange(DBPROCESS * dbproc)
7072 : {
7073 0 : tdsdump_log(TDS_DBG_FUNC, "dbchange(%p)\n", dbproc);
7074 0 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
7075 :
7076 0 : if (dbproc->envchange_rcv & (1 << (TDS_ENV_DATABASE - 1))) {
7077 0 : return dbproc->dbcurdb;
7078 : }
7079 : return NULL;
7080 : }
7081 :
7082 : /**
7083 : * \ingroup dblib_core
7084 : * \brief Get name of current database.
7085 : *
7086 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7087 : * \return current database name, as null-terminated ASCII string.
7088 : * \sa dbchange(), dbuse().
7089 : */
7090 : char *
7091 0 : dbname(DBPROCESS * dbproc)
7092 : {
7093 0 : tdsdump_log(TDS_DBG_FUNC, "dbname(%p)\n", dbproc);
7094 0 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
7095 0 : return dbproc->dbcurdb;
7096 : }
7097 :
7098 : /**
7099 : * \ingroup dblib_core
7100 : * \brief Get \c syscharset name of the server character set.
7101 : *
7102 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7103 : * \return name of server's charset, as null-terminated ASCII string.
7104 : * \sa dbcharsetconv(), dbgetcharset(), DBSETLCHARSET().
7105 : */
7106 : char *
7107 0 : dbservcharset(DBPROCESS * dbproc)
7108 : {
7109 :
7110 0 : tdsdump_log(TDS_DBG_FUNC, "dbservcharset(%p)\n", dbproc);
7111 0 : CHECK_PARAMETER(dbproc, SYBENULL, NULL);
7112 :
7113 0 : return dbproc->servcharset;
7114 : }
7115 :
7116 : /**
7117 : * \ingroup dblib_core
7118 : * \brief Transmit the command buffer to the server. \em Non-blocking, does not wait for a response.
7119 : *
7120 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7121 : * \retval SUCCEED SQL sent.
7122 : * \retval FAIL protocol problem, unless dbsqlsend() when it's not supposed to be (in which case a db-lib error
7123 : message will be emitted).
7124 : * \sa dbcmd(), dbfcmd(), DBIORDESC(), DBIOWDESC(), dbnextrow(), dbpoll(), dbresults(), dbsettime(), dbsqlexec(), dbsqlok().
7125 : */
7126 : RETCODE
7127 20484 : dbsqlsend(DBPROCESS * dbproc)
7128 : {
7129 : TDSSOCKET *tds;
7130 : char *cmdstr;
7131 : TDSRET rc;
7132 : TDS_INT result_type;
7133 : char timestr[256];
7134 :
7135 20484 : tdsdump_log(TDS_DBG_FUNC, "dbsqlsend(%p)\n", dbproc);
7136 20484 : CHECK_CONN(FAIL);
7137 :
7138 20484 : tds = dbproc->tds_socket;
7139 :
7140 20484 : if (tds->state == TDS_PENDING) {
7141 :
7142 130 : if (tds_process_tokens(tds, &result_type, NULL, TDS_TOKEN_TRAILING) != TDS_NO_MORE_RESULTS) {
7143 70 : dbperror(dbproc, SYBERPND, 0);
7144 70 : dbproc->command_state = DBCMDSENT;
7145 70 : return FAIL;
7146 : }
7147 : }
7148 :
7149 20414 : if (dbproc->dboptcmd) {
7150 0 : if ((cmdstr = dbstring_get(dbproc->dboptcmd)) == NULL) {
7151 0 : dbperror(dbproc, SYBEASEC, 0); /* Attempt to send an empty command buffer to the server */
7152 0 : return FAIL;
7153 : }
7154 0 : rc = tds_submit_query(dbproc->tds_socket, cmdstr);
7155 0 : free(cmdstr);
7156 0 : dbstring_free(&(dbproc->dboptcmd));
7157 0 : if (TDS_FAILED(rc)) {
7158 : return FAIL;
7159 : }
7160 0 : dbproc->avail_flag = FALSE;
7161 0 : dbproc->envchange_rcv = 0;
7162 0 : dbproc->dbresults_state = _DB_RES_INIT;
7163 0 : while ((rc = tds_process_tokens(tds, &result_type, NULL, TDS_TOKEN_RESULTS))
7164 : == TDS_SUCCESS);
7165 0 : if (rc != TDS_NO_MORE_RESULTS) {
7166 : return FAIL;
7167 : }
7168 : }
7169 20414 : dbproc->more_results = TRUE;
7170 :
7171 20414 : if (dbproc->ftos != NULL) {
7172 0 : fprintf(dbproc->ftos, "%s\n", dbproc->dbbuf);
7173 0 : fprintf(dbproc->ftos, "go /* %s */\n", _dbprdate(timestr));
7174 0 : fflush(dbproc->ftos);
7175 : }
7176 :
7177 20414 : if (TDS_FAILED(tds_submit_query(dbproc->tds_socket, (char *) dbproc->dbbuf))) {
7178 : return FAIL;
7179 : }
7180 20404 : dbproc->avail_flag = FALSE;
7181 20404 : dbproc->envchange_rcv = 0;
7182 20404 : dbproc->dbresults_state = _DB_RES_INIT;
7183 20404 : dbproc->command_state = DBCMDSENT;
7184 20404 : return SUCCEED;
7185 : }
7186 :
7187 : /**
7188 : * \ingroup dblib_core
7189 : * \brief Get user-defined datatype of a compute column.
7190 : *
7191 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7192 : * \param computeid of \c COMPUTE clause to which we're referring.
7193 : * \param column Nth column in \a computeid, starting from 1.
7194 : * \returns user-defined datatype of compute column, else -1.
7195 : * \sa dbalttype(), dbcolutype().
7196 : */
7197 : DBINT
7198 0 : dbaltutype(DBPROCESS * dbproc, int computeid, int column)
7199 : {
7200 : TDSCOLUMN *colinfo;
7201 :
7202 0 : tdsdump_log(TDS_DBG_FUNC, "dbaltutype(%p, %d, %d)\n", dbproc, computeid, column);
7203 :
7204 0 : colinfo = dbacolptr(dbproc, computeid, column, false);
7205 0 : if (!colinfo)
7206 : return -1;
7207 :
7208 0 : return colinfo->column_usertype;
7209 : }
7210 :
7211 : /**
7212 : * \ingroup dblib_core
7213 : * \brief Get size of data in compute column.
7214 : *
7215 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7216 : * \param computeid of \c COMPUTE clause to which we're referring.
7217 : * \param column Nth column in \a computeid, starting from 1.
7218 : * \sa dbadata(), dbadlen(), dbalttype(), dbgetrow(), dbnextrow(), dbnumalts().
7219 : */
7220 : DBINT
7221 0 : dbaltlen(DBPROCESS * dbproc, int computeid, int column)
7222 : {
7223 : TDSCOLUMN *colinfo;
7224 :
7225 0 : tdsdump_log(TDS_DBG_FUNC, "dbaltlen(%p, %d, %d)\n", dbproc, computeid, column);
7226 :
7227 0 : colinfo = dbacolptr(dbproc, computeid, column, false);
7228 0 : if (!colinfo)
7229 : return -1;
7230 :
7231 0 : return colinfo->column_size;
7232 :
7233 : }
7234 :
7235 : /**
7236 : * \ingroup dblib_core
7237 : * \brief See if a server response has arrived.
7238 : *
7239 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7240 : * \param milliseconds how long to wait for the server before returning:
7241 : - \c 0 return immediately.
7242 : - \c -1 do not return until the server responds or a system interrupt occurs.
7243 : * \param ready_dbproc \em output: DBPROCESS for which a response arrived, of \c NULL.
7244 : * \param return_reason \em output:
7245 : - \c DBRESULT server responded.
7246 : - \c DBNOTIFICATION registered procedure notification has arrived. dbpoll() the registered handler, if
7247 : any, before it returns.
7248 : - \c DBTIMEOUT \a milliseconds elapsed before the server responded.
7249 : - \c DBINTERRUPT operating-system interrupt occurred before the server responded.
7250 : * \retval SUCCEED everything worked.
7251 : * \retval FAIL a server connection died.
7252 : * \sa DBIORDESC(), DBRBUF(), dbresults(), dbreghandle(), dbsqlok().
7253 : * \todo Unimplemented.
7254 : */
7255 : #if defined(DBLIB_UNIMPLEMENTED)
7256 : RETCODE
7257 : dbpoll(DBPROCESS * dbproc, long milliseconds, DBPROCESS ** ready_dbproc, int *return_reason)
7258 : {
7259 : tdsdump_log(TDS_DBG_FUNC, "dbpoll(%p, %ld, %p, %p)\n", dbproc, milliseconds, ready_dbproc, return_reason);
7260 : CHECK_CONN(FAIL);
7261 : CHECK_NULP(ready_dbproc, "dbpoll", 3, FAIL);
7262 : CHECK_NULP(return_reason, "dbpoll", 4, FAIL);
7263 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED dbpoll()\n");
7264 : return SUCCEED;
7265 : }
7266 : #endif
7267 :
7268 : /** \internal
7269 : * \ingroup dblib_internal
7270 : * \brief Get number of the first row in the row buffer.
7271 : *
7272 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7273 : * \sa DBFIRSTROW(), dbclrbuf(), DBCURROW(), dbgetrow(), DBLASTROW(), dbnextrow(), dbsetopt().
7274 : */
7275 : DBINT
7276 0 : dbfirstrow(DBPROCESS * dbproc)
7277 : {
7278 0 : tdsdump_log(TDS_DBG_FUNC, "dbfirstrow(%p)\n", dbproc);
7279 0 : CHECK_CONN(0);
7280 0 : return buffer_idx2row(&dbproc->row_buf, dbproc->row_buf.tail);
7281 : }
7282 :
7283 : /** \internal
7284 : * \ingroup dblib_internal
7285 : * \brief Get number of the last row in the row buffer.
7286 : *
7287 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7288 : * \sa DBLASTROW(), dbclrbuf(), DBCURROW(), DBFIRSTROW(), dbgetrow(), dbnextrow(), dbsetopt().
7289 : */
7290 : DBINT
7291 0 : dblastrow(DBPROCESS * dbproc)
7292 : {
7293 : int idx;
7294 :
7295 0 : tdsdump_log(TDS_DBG_FUNC, "dblastrow(%p)\n", dbproc);
7296 0 : CHECK_PARAMETER(dbproc, SYBENULL, 0);
7297 0 : idx = dbproc->row_buf.head;
7298 0 : if (dbproc->row_buf.head != dbproc->row_buf.tail) {
7299 0 : if (--idx < 0)
7300 0 : idx = dbproc->row_buf.capacity - 1;
7301 : }
7302 0 : assert(idx >= 0);
7303 0 : return buffer_idx2row(&dbproc->row_buf, idx);
7304 : }
7305 :
7306 :
7307 : /** \internal
7308 : * \ingroup dblib_internal
7309 : * \brief Get file descriptor of the socket used by a \c DBPROCESS to read data coming from the server. (!)
7310 : *
7311 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7312 : * \sa dbcmd(), DBIORDESC(), DBIOWDESC(), dbnextrow(), dbpoll(), DBRBUF(), dbresults(), dbsqlok(), dbsqlsend().
7313 : */
7314 : int
7315 0 : dbiordesc(DBPROCESS * dbproc)
7316 : {
7317 0 : tdsdump_log(TDS_DBG_FUNC, "dbiordesc(%p)\n", dbproc);
7318 0 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
7319 0 : return (int) tds_get_s(dbproc->tds_socket);
7320 : }
7321 :
7322 :
7323 : /** \internal
7324 : * \ingroup dblib_internal
7325 : * \brief Get file descriptor of the socket used by a \c DBPROCESS to write data coming to the server. (!)
7326 : *
7327 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7328 : * \sa dbcmd(), DBIORDESC(), DBIOWDESC(), dbnextrow(), dbpoll(), DBRBUF(), dbresults(), dbsqlok(), dbsqlsend().
7329 : */
7330 : int
7331 20 : dbiowdesc(DBPROCESS * dbproc)
7332 : {
7333 20 : tdsdump_log(TDS_DBG_FUNC, "dbiowdesc(%p)\n", dbproc);
7334 20 : CHECK_PARAMETER(dbproc, SYBENULL, -1);
7335 :
7336 20 : return (int) tds_get_s(dbproc->tds_socket);
7337 : }
7338 :
7339 : DBBOOL
7340 0 : dbisavail(DBPROCESS * dbproc)
7341 : {
7342 0 : tdsdump_log(TDS_DBG_FUNC, "dbisavail(%p)\n", dbproc);
7343 0 : CHECK_PARAMETER(dbproc, SYBENULL, FALSE);
7344 0 : return dbproc->avail_flag;
7345 : }
7346 :
7347 :
7348 : /** \internal
7349 : * \ingroup dblib_internal
7350 : * \brief Mark a \c DBPROCESS as "available".
7351 : *
7352 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7353 : * \remarks Basically bogus. \c FreeTDS behaves the way Sybase's implementation does, but so what?
7354 : Many \c db-lib functions set the \c DBPROCESS to "not available", but only
7355 : dbsetavail() resets it to "available".
7356 : * \sa DBISAVAIL(). DBSETAVAIL().
7357 : */
7358 : void
7359 0 : dbsetavail(DBPROCESS * dbproc)
7360 : {
7361 0 : tdsdump_log(TDS_DBG_FUNC, "dbsetavail(%p)\n", dbproc);
7362 0 : CHECK_PARAMETER(dbproc, SYBENULL, );
7363 0 : dbproc->avail_flag = TRUE;
7364 : }
7365 :
7366 :
7367 : /**
7368 : * \ingroup dblib_core
7369 : * \brief Build a printable string from text containing placeholders for variables.
7370 : *
7371 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
7372 : * \param charbuf \em output: buffer that will contain the ASCII null-terminated string built by \c dbstrbuild().
7373 : * \param bufsize size of \a charbuf, in bytes.
7374 : * \param text null-terminated ASCII string, with \em placeholders for variables. \em A Placeholder is a
7375 : * three-byte string, made up of:
7376 : - '%' a percent sign
7377 : - 0-9 an integer (designates the argument number to use, starting with 1.)
7378 : - '!' an exclamation point
7379 : * \param formats null-terminated ASCII sprintf-style string. Has one format specifier for each placeholder in \a text.
7380 : * \remarks Following \a formats are the arguments, the values to substitute for the placeholders.
7381 : * \sa dbconvert(), dbdatename(), dbdatepart().
7382 : */
7383 : int
7384 80 : dbstrbuild(DBPROCESS * dbproc, char *charbuf, int bufsize, char *text, char *formats, ...)
7385 : {
7386 : va_list ap;
7387 : TDSRET rc;
7388 : int resultlen;
7389 :
7390 80 : tdsdump_log(TDS_DBG_FUNC, "dbstrbuild(%p, %s, %d, %s, %s, ...)\n", dbproc, charbuf, bufsize, text, formats);
7391 80 : CHECK_NULP(charbuf, "dbstrbuild", 2, FAIL);
7392 80 : CHECK_NULP(text, "dbstrbuild", 4, FAIL);
7393 80 : CHECK_NULP(formats, "dbstrbuild", 5, FAIL);
7394 :
7395 80 : va_start(ap, formats);
7396 80 : rc = tds_vstrbuild(charbuf, bufsize, &resultlen, text, TDS_NULLTERM, formats, TDS_NULLTERM, ap);
7397 80 : charbuf[resultlen] = '\0';
7398 80 : va_end(ap);
7399 80 : return TDS_SUCCEED(rc) ? resultlen : -1;
7400 : }
7401 :
7402 : static char *
7403 0 : _dbprdate(char *timestr)
7404 : {
7405 0 : time_t currtime = time(NULL);
7406 :
7407 0 : assert(timestr);
7408 :
7409 0 : strcpy(timestr, asctime(gmtime(&currtime)));
7410 0 : timestr[strlen(timestr) - 1] = '\0'; /* remove newline */
7411 0 : return timestr;
7412 :
7413 : }
7414 :
7415 : static DBINT
7416 0 : _dbnullable(DBPROCESS * dbproc, int column)
7417 : {
7418 : TDSCOLUMN *colinfo;
7419 : TDSRESULTINFO *resinfo;
7420 :
7421 0 : assert(dbproc && dbproc->tds_socket);
7422 0 : resinfo = dbproc->tds_socket->res_info;
7423 0 : if (!resinfo || column < 1 || column > resinfo->num_cols)
7424 : return FALSE;
7425 0 : colinfo = resinfo->columns[column - 1];
7426 :
7427 0 : if (colinfo->column_nullable)
7428 : return TRUE;
7429 0 : return FALSE;
7430 : }
7431 :
7432 : /** Returns type in string. Used for debugging purpose */
7433 : static const char *
7434 0 : tds_prdatatype(int datatype_token)
7435 : {
7436 0 : switch ((TDS_SERVER_TYPE) datatype_token) {
7437 : case SYBCHAR: return "SYBCHAR";
7438 0 : case SYBVARCHAR: return "SYBVARCHAR";
7439 0 : case SYBINTN: return "SYBINTN";
7440 0 : case SYBINT1: return "SYBINT1";
7441 0 : case SYBINT2: return "SYBINT2";
7442 0 : case SYBINT4: return "SYBINT4";
7443 0 : case SYBINT8: return "SYBINT8";
7444 0 : case SYBFLT8: return "SYBFLT8";
7445 0 : case SYBDATETIME: return "SYBDATETIME";
7446 0 : case SYBBIT: return "SYBBIT";
7447 0 : case SYBTEXT: return "SYBTEXT";
7448 0 : case SYBNTEXT: return "SYBNTEXT";
7449 0 : case SYBIMAGE: return "SYBIMAGE";
7450 0 : case SYBMONEY4: return "SYBMONEY4";
7451 0 : case SYBMONEY: return "SYBMONEY";
7452 0 : case SYBDATETIME4: return "SYBDATETIME4";
7453 0 : case SYBREAL: return "SYBREAL";
7454 0 : case SYBBINARY: return "SYBBINARY";
7455 0 : case SYBVOID: return "SYBVOID";
7456 0 : case SYBVARBINARY: return "SYBVARBINARY";
7457 0 : case SYBNVARCHAR: return "SYBNVARCHAR";
7458 0 : case SYBBITN: return "SYBBITN";
7459 0 : case SYBNUMERIC: return "SYBNUMERIC";
7460 0 : case SYBDECIMAL: return "SYBDECIMAL";
7461 0 : case SYBFLTN: return "SYBFLTN";
7462 0 : case SYBMONEYN: return "SYBMONEYN";
7463 0 : case SYBDATETIMN: return "SYBDATETIMN";
7464 0 : case XSYBCHAR: return "XSYBCHAR";
7465 0 : case XSYBVARCHAR: return "XSYBVARCHAR";
7466 0 : case XSYBNVARCHAR: return "XSYBNVARCHAR";
7467 0 : case XSYBNCHAR: return "XSYBNCHAR";
7468 0 : case XSYBVARBINARY: return "XSYBVARBINARY";
7469 0 : case XSYBBINARY: return "XSYBBINARY";
7470 0 : case SYBLONGBINARY: return "SYBLONGBINARY";
7471 0 : case SYBSINT1: return "SYBSINT1";
7472 0 : case SYBUINT2: return "SYBUINT2";
7473 0 : case SYBUINT4: return "SYBUINT4";
7474 0 : case SYBUINT8: return "SYBUINT8";
7475 0 : case SYBUNIQUE: return "SYBUNIQUE";
7476 0 : case SYBVARIANT: return "SYBVARIANT";
7477 0 : case SYBMSXML: return "SYBMSXML";
7478 0 : case SYBMSDATE: return "SYBMSDATE";
7479 0 : case SYBMSTIME: return "SYBMSTIME";
7480 0 : case SYBMSDATETIME2: return "SYBMSDATETIME2";
7481 0 : case SYBMSDATETIMEOFFSET: return "SYBMSDATETIMEOFFSET";
7482 0 : case SYBDATE: return "SYBDATE";
7483 0 : case SYBTIME: return "SYBTIME";
7484 0 : case SYB5BIGDATETIME: return "SYBBIGDATETIME";
7485 0 : case SYB5BIGTIME: return "SYBBIGTIME";
7486 0 : case SYBMSUDT: return "SYBMSUDT";
7487 0 : case SYBUINT1: return "SYBUINT1";
7488 0 : case SYBDATEN: return "SYBDATEN";
7489 0 : case SYB5INT8: return "SYB5INT8";
7490 0 : case SYBINTERVAL: return "SYBINTERVAL";
7491 0 : case SYBTIMEN: return "SYBTIMEN";
7492 0 : case SYBUINTN: return "SYBUINTN";
7493 0 : case SYBUNITEXT: return "SYBUNITEXT";
7494 0 : case SYBXML: return "SYBXML";
7495 0 : case SYBMSTABLE: return "SYBMSTABLE";
7496 : }
7497 0 : return "(unknown)";
7498 : }
7499 : #if 1
7500 : void
7501 410744 : copy_data_to_host_var(DBPROCESS * dbproc, TDS_SERVER_TYPE srctype, const BYTE * src, DBINT srclen,
7502 : BYTE * dest, DBINT destlen,
7503 : int bindtype, DBINT *indicator)
7504 : {
7505 : CONV_RESULT dres;
7506 : DBINT ret;
7507 : int len;
7508 410744 : DBINT indicator_value = 0;
7509 :
7510 410744 : bool limited_dest_space = false;
7511 410744 : TDS_SERVER_TYPE desttype = dblib_bound_type(bindtype);
7512 :
7513 410744 : tdsdump_log(TDS_DBG_FUNC, "copy_data_to_host_var(%d [%s] len %d => %d [%s] len %d)\n",
7514 : srctype, tds_prdatatype(srctype), srclen, desttype, tds_prdatatype(desttype), destlen);
7515 820990 : CHECK_NULP(src, "copy_data_to_host_var", 3, );
7516 410744 : CHECK_NULP(dest, "copy_data_to_host_var", 6, );
7517 410744 : if (desttype == TDS_INVALID_TYPE)
7518 : return;
7519 : /* indicator can be NULL */
7520 :
7521 410744 : assert(srclen >= 0);
7522 :
7523 410744 : if (destlen > 0) {
7524 290 : limited_dest_space = true;
7525 : }
7526 :
7527 : /* oft times we are asked to convert a data type to itself */
7528 :
7529 410744 : if (desttype == SYBNUMERIC) {
7530 240 : DBNUMERIC *num = NULL; /* num->scale is unsigned */
7531 :
7532 : /* only MS, use always source */
7533 240 : if (bindtype == SRCNUMERICBIND || bindtype == SRCDECIMALBIND) {
7534 120 : if (is_numeric_type(srctype))
7535 : num = (DBNUMERIC*) src;
7536 : else
7537 40 : num = (DBNUMERIC*) dest;
7538 120 : } else if (dbproc->msdblib) {
7539 : /* MS by default use only destination information */
7540 : num = (DBNUMERIC*) dest;
7541 : } else {
7542 : /* Sybase, dbbind means source or default */
7543 : /* TODO if dbbind_ps is used is more complicated */
7544 60 : if (is_numeric_type(srctype))
7545 : num = (DBNUMERIC*) src;
7546 : }
7547 : if (!num) {
7548 20 : dres.n.precision = 18;
7549 20 : dres.n.scale = 0;
7550 : } else {
7551 220 : dres.n.precision = num->precision;
7552 220 : dres.n.scale = num->scale;
7553 : }
7554 411850 : } else if ((srctype == desttype) ||
7555 2434 : (is_similar_type(srctype, desttype))) {
7556 :
7557 410246 : tdsdump_log(TDS_DBG_INFO1, "copy_data_to_host_var() srctype == desttype\n");
7558 410246 : switch (desttype) {
7559 :
7560 10 : case SYBVARBINARY:
7561 : case SYBBINARY:
7562 : case SYBIMAGE:
7563 10 : if (bindtype == VARYBINBIND) {
7564 10 : DBVARYBIN *bin = (DBVARYBIN*) dest;
7565 10 : if (limited_dest_space) {
7566 10 : if (srclen > sizeof(bin->array)) {
7567 0 : dbperror(dbproc, SYBECOFL, 0);
7568 0 : indicator_value = srclen;
7569 0 : srclen = sizeof(bin->array);
7570 : }
7571 : }
7572 10 : memcpy(bin->array, src, srclen);
7573 10 : bin->len = srclen;
7574 10 : break;
7575 : }
7576 :
7577 0 : if (srclen > destlen && destlen >= 0) {
7578 0 : dbperror(dbproc, SYBECOFL, 0);
7579 : } else {
7580 0 : memcpy(dest, src, srclen);
7581 0 : if (srclen < destlen)
7582 0 : memset(dest + srclen, 0, destlen - srclen);
7583 : }
7584 : break;
7585 :
7586 205622 : case SYBCHAR:
7587 : case SYBVARCHAR:
7588 : case SYBTEXT:
7589 :
7590 205622 : switch (bindtype) {
7591 : case NTBSTRINGBIND: /* strip trailing blanks, null term */
7592 574 : while (srclen && src[srclen - 1] == ' ') {
7593 252 : --srclen;
7594 : }
7595 322 : if (limited_dest_space) {
7596 40 : if (srclen + 1 > destlen) {
7597 10 : dbperror(dbproc, SYBECOFL, 0);
7598 10 : indicator_value = srclen + 1;
7599 10 : srclen = destlen - 1;
7600 : }
7601 : }
7602 322 : memcpy(dest, src, srclen);
7603 322 : dest[srclen] = '\0';
7604 322 : break;
7605 205240 : case STRINGBIND: /* pad with blanks, NUL term */
7606 205240 : if (limited_dest_space) {
7607 30 : if (srclen + 1 > destlen) {
7608 20 : dbperror(dbproc, SYBECOFL, 0);
7609 20 : indicator_value = srclen + 1;
7610 20 : srclen = destlen - 1;
7611 : }
7612 : } else {
7613 205210 : destlen = srclen + 1;
7614 : }
7615 205240 : memcpy(dest, src, srclen);
7616 205240 : if (srclen < destlen)
7617 205240 : memset(dest + srclen, ' ', destlen - srclen - 1);
7618 205240 : dest[destlen - 1] = '\0';
7619 205240 : break;
7620 40 : case CHARBIND: /* pad with blanks, NO NUL term */
7621 40 : if (limited_dest_space) {
7622 30 : if (srclen > destlen) {
7623 10 : dbperror(dbproc, SYBECOFL, 0);
7624 10 : indicator_value = srclen;
7625 10 : srclen = destlen;
7626 : }
7627 : } else {
7628 : destlen = srclen;
7629 : }
7630 40 : memcpy(dest, src, srclen);
7631 40 : if (srclen < destlen)
7632 10 : memset(dest + srclen, ' ', destlen - srclen);
7633 : break;
7634 20 : case VARYCHARBIND: /* strip trailing blanks, NO NUL term */
7635 20 : if (limited_dest_space) {
7636 20 : if (srclen > destlen) {
7637 0 : dbperror(dbproc, SYBECOFL, 0);
7638 0 : indicator_value = srclen;
7639 0 : srclen = destlen;
7640 : }
7641 : }
7642 20 : memcpy(((DBVARYCHAR *)dest)->str, src, srclen);
7643 20 : ((DBVARYCHAR *)dest)->len = srclen;
7644 20 : break;
7645 : }
7646 : break;
7647 204614 : case SYBINT1:
7648 : case SYBINT2:
7649 : case SYBINT4:
7650 : case SYBINT8:
7651 : case SYBFLT8:
7652 : case SYBREAL:
7653 : case SYBBIT:
7654 : case SYBBITN:
7655 : case SYBMONEY:
7656 : case SYBMONEY4:
7657 : case SYBDATETIME:
7658 : case SYBDATETIME4:
7659 : case SYBDATE:
7660 : case SYBTIME:
7661 : case SYB5BIGDATETIME:
7662 : case SYB5BIGTIME:
7663 : case SYBUNIQUE:
7664 204614 : ret = tds_get_size_by_type(desttype);
7665 204614 : memcpy(dest, src, ret);
7666 204614 : break;
7667 :
7668 0 : case SYBMSDATE:
7669 : case SYBMSTIME:
7670 : case SYBMSDATETIME2:
7671 : case SYBMSDATETIMEOFFSET:
7672 0 : ret = sizeof(TDS_DATETIMEALL);
7673 0 : memcpy(dest, src, ret);
7674 0 : break;
7675 :
7676 : default:
7677 : break;
7678 : }
7679 410246 : if (indicator)
7680 136 : *indicator = indicator_value;
7681 :
7682 : return;
7683 :
7684 : } /* end srctype == desttype */
7685 :
7686 498 : len = tds_convert(g_dblib_ctx.tds_ctx, srctype, src, srclen, desttype, &dres);
7687 :
7688 498 : tdsdump_log(TDS_DBG_INFO1, "copy_data_to_host_var(): tds_convert returned %d\n", len);
7689 :
7690 498 : if (len < 0) {
7691 0 : _dblib_convert_err(dbproc, len);
7692 0 : return;
7693 : }
7694 :
7695 498 : switch (desttype) {
7696 60 : case SYBVARBINARY:
7697 : case SYBBINARY:
7698 : case SYBIMAGE:
7699 60 : if (bindtype == VARYBINBIND) {
7700 30 : if (limited_dest_space) {
7701 30 : if (len > sizeof(((DBVARYBIN *)dest)->array)) {
7702 0 : dbperror(dbproc, SYBECOFL, 0);
7703 0 : indicator_value = len;
7704 0 : len = sizeof(((DBVARYBIN *)dest)->array);
7705 : }
7706 : }
7707 30 : memcpy(((DBVARYBIN *)dest)->array, dres.c, len);
7708 30 : ((DBVARYBIN *)dest)->len = len;
7709 : } else {
7710 30 : if (len > destlen && destlen >= 0) {
7711 0 : dbperror(dbproc, SYBECOFL, 0);
7712 : } else {
7713 30 : memcpy(dest, dres.ib, len);
7714 30 : if (len < destlen)
7715 10 : memset(dest + len, 0, destlen - len);
7716 : }
7717 : }
7718 60 : TDS_ZERO_FREE(dres.ib);
7719 60 : break;
7720 250 : case SYBINT1:
7721 : case SYBINT2:
7722 : case SYBINT4:
7723 : case SYBINT8:
7724 : case SYBFLT8:
7725 : case SYBREAL:
7726 : case SYBBIT:
7727 : case SYBBITN:
7728 : case SYBMONEY:
7729 : case SYBMONEY4:
7730 : case SYBDATETIME:
7731 : case SYBDATETIME4:
7732 : case SYBDATE:
7733 : case SYBTIME:
7734 : case SYBNUMERIC:
7735 : case SYBDECIMAL:
7736 : case SYBUNIQUE:
7737 : case SYBMSDATE:
7738 : case SYBMSTIME:
7739 : case SYB5BIGDATETIME:
7740 : case SYB5BIGTIME:
7741 : case SYBMSDATETIME2:
7742 : case SYBMSDATETIMEOFFSET:
7743 250 : memcpy(dest, &(dres.ti), len);
7744 250 : break;
7745 188 : case SYBCHAR:
7746 : case SYBVARCHAR:
7747 : case SYBTEXT:
7748 188 : tdsdump_log(TDS_DBG_INFO1, "copy_data_to_host_var() outputs %d bytes char data destlen = %d \n", len, destlen);
7749 188 : switch (bindtype) {
7750 : case NTBSTRINGBIND: /* strip trailing blanks, null term */
7751 40 : while (len && dres.c[len - 1] == ' ') {
7752 0 : --len;
7753 : }
7754 40 : if (limited_dest_space) {
7755 30 : if (len + 1 > destlen) {
7756 10 : dbperror(dbproc, SYBECOFL, 0);
7757 10 : len = destlen - 1;
7758 : }
7759 : }
7760 40 : memcpy(dest, dres.c, len);
7761 40 : dest[len] = '\0';
7762 40 : break;
7763 98 : case STRINGBIND: /* pad with blanks, null term */
7764 98 : if (limited_dest_space) {
7765 30 : if (len + 1 > destlen) {
7766 10 : dbperror(dbproc, SYBECOFL, 0);
7767 10 : len = destlen - 1;
7768 : }
7769 : } else {
7770 68 : destlen = len + 1;
7771 : }
7772 98 : memcpy(dest, dres.c, len);
7773 98 : if (len < destlen)
7774 98 : memset(dest + len, ' ', destlen - len - 1);
7775 98 : dest[destlen - 1] = '\0';
7776 98 : break;
7777 50 : case CHARBIND: /* pad with blanks, NO null term */
7778 50 : if (limited_dest_space) {
7779 40 : if (len > destlen) {
7780 10 : dbperror(dbproc, SYBECOFL, 0);
7781 10 : indicator_value = len;
7782 10 : len = destlen;
7783 : }
7784 : } else {
7785 : destlen = len;
7786 : }
7787 50 : memcpy(dest, dres.c, len);
7788 50 : if (len < destlen)
7789 20 : memset(dest + len, ' ', destlen - len);
7790 : break;
7791 0 : case VARYCHARBIND: /* strip trailing blanks, NO null term */
7792 0 : if (limited_dest_space) {
7793 0 : if (len > sizeof(((DBVARYCHAR *)dest)->str)) {
7794 0 : dbperror(dbproc, SYBECOFL, 0);
7795 0 : indicator_value = len;
7796 0 : len = sizeof(((DBVARYCHAR *)dest)->str);
7797 : }
7798 : }
7799 0 : memcpy(((DBVARYCHAR *)dest)->str, dres.c, len);
7800 0 : ((DBVARYCHAR *)dest)->len = len;
7801 0 : break;
7802 : }
7803 :
7804 188 : free(dres.c);
7805 188 : break;
7806 0 : default:
7807 0 : tdsdump_log(TDS_DBG_INFO1, "error: copy_data_to_host_var(): unrecognized desttype %d \n", desttype);
7808 : break;
7809 :
7810 : }
7811 498 : if (indicator)
7812 0 : *indicator = indicator_value;
7813 : }
7814 : #endif
7815 :
7816 : /** \internal
7817 : * \ingroup dblib_internal
7818 : * \remarks member msgno Vendor-defined message number
7819 : * \remarks member severity Is passed to the error handler
7820 : * \remarks member msgtext Text of message
7821 : */
7822 : typedef struct _dblib_error_message
7823 : {
7824 : DBINT msgno;
7825 : int severity;
7826 : const char *msgtext;
7827 : } DBLIB_ERROR_MESSAGE;
7828 :
7829 : /*
7830 : * The msgtext member holds up to two strings. The first one is the message text, which may contain placeholders.
7831 : * The second one, if it exists, is the format string for dbstrbuild(). Messages containing no placeholders still need
7832 : * an extra NULL to indicate a zero-length format string.
7833 : */
7834 : static const DBLIB_ERROR_MESSAGE dblib_error_messages[] =
7835 : { { SYBEVERDOWN, EXINFO, "TDS version downgraded to 7.1!\0" }
7836 : , { SYBEICONVIU, EXCONVERSION, "Some character(s) could not be converted into client's character set\0" }
7837 : , { SYBEICONVAVAIL, EXCONVERSION, "Character set conversion is not available between client character set '%1!' and "
7838 : "server character set '%2!'\0%s %s" }
7839 : , { SYBEICONVO, EXCONVERSION, "Error converting characters into server's character set. Some character(s) could "
7840 : "not be converted\0" }
7841 : , { SYBEICONVI, EXCONVERSION, "Some character(s) could not be converted into client's character set. Unconverted "
7842 : "bytes were changed to question marks ('?')\0" }
7843 : , { SYBEICONV2BIG, EXCONVERSION, "Buffer overflow converting characters from client into server's character set\0" }
7844 :
7845 :
7846 : , { SYBEPORT, EXUSER, "Both port and instance specified\0" }
7847 : , { SYBETDSVER, EXUSER, "Cannot bcp with TDSVER < 5.0\0" }
7848 : , { SYBEAAMT, EXPROGRAM, "User attempted a dbaltbind with mismatched column and variable types\0" }
7849 : , { SYBEABMT, EXPROGRAM, "User attempted a dbbind with mismatched column and variable types\0" }
7850 : , { SYBEABNC, EXPROGRAM, "Attempt to bind to a non-existent column\0" }
7851 : , { SYBEABNP, EXPROGRAM, "Attempt to bind using NULL pointers\0" }
7852 : , { SYBEABNV, EXPROGRAM, "Attempt to bind to a NULL program variable\0" }
7853 : , { SYBEACNV, EXCONVERSION, "Attempt to do data-conversion with NULL destination variable.\0" }
7854 : , { SYBEADST, EXCONSISTENCY, "International Release: Error in attempting to determine the size of a pair of "
7855 : "translation tables\0" }
7856 : , { SYBEAICF, EXCONSISTENCY, "International Release: Error in attempting to install custom format\0" }
7857 : , { SYBEALTT, EXCONSISTENCY, "International Release: Error in attempting to load a pair of translation tables\0" }
7858 : , { SYBEAOLF, EXRESOURCE, "International Release: Error in attempting to open a localization file\0" }
7859 : , { SYBEAPCT, EXCONSISTENCY, "International Release: Error in attempting to perform a character set translation\0" }
7860 : , { SYBEAPUT, EXPROGRAM, "Attempt to print unknown token\0" }
7861 : , { SYBEARDI, EXRESOURCE, "International Release: Error in attempting to read datetime information from a "
7862 : "localization file\0" }
7863 : , { SYBEARDL, EXRESOURCE, "International Release: Error in attempting to read the dblib.loc localization file\0" }
7864 : , { SYBEASEC, EXPROGRAM, "Attempt to send an empty command buffer to the server\0" }
7865 : , { SYBEASNL, EXPROGRAM, "Attempt to set fields in a null LOGINREC\0" }
7866 : , { SYBEASTL, EXPROGRAM, "Synchronous I/O attempted at AST level\0" }
7867 : , { SYBEASUL, EXPROGRAM, "Attempt to set unknown LOGINREC field\0" }
7868 : , { SYBEAUTN, EXPROGRAM, "Attempt to update the timestamp of a table that has no timestamp column\0" }
7869 : , { SYBEBADPK, EXINFO, "Packet size of %1! not supported -- size of %2! used instead!\0%d %d" }
7870 : , { SYBEBBCI, EXINFO, "Batch successfully bulk copied to the server\0" }
7871 : , { SYBEBBL, EXPROGRAM, "Bad bindlen parameter passed to dbsetnull\0" }
7872 : , { SYBEBCBC, EXPROGRAM, "bcp_columns must be called before bcp_colfmt and bcp_colfmt_ps\0" }
7873 : , { SYBEBCBNPR, EXPROGRAM, "bcp_bind: if varaddr is NULL, prefixlen must be 0 "
7874 : "and no terminator should be specified\0" }
7875 : , { SYBEBCBNTYP, EXPROGRAM, "bcp_bind: if varaddr is NULL and varlen greater than 0, the table column type "
7876 : "must be SYBTEXT or SYBIMAGE and the program variable type must be SYBTEXT, SYBCHAR, "
7877 : "SYBIMAGE or SYBBINARY\0" }
7878 : , { SYBEBCBPREF, EXPROGRAM, "Illegal prefix length. Legal values are 0, 1, 2 or 4\0" }
7879 : , { SYBEBCFO, EXUSER, "bcp host files must contain at least one column\0" }
7880 : , { SYBEBCHLEN, EXPROGRAM, "host_collen should be greater than or equal to -1\0" }
7881 : , { SYBEBCIS, EXCONSISTENCY, "Attempt to bulk copy an illegally-sized column value to the server\0" }
7882 : , { SYBEBCIT, EXPROGRAM, "It is illegal to use BCP terminators with program variables other than SYBCHAR, "
7883 : "SYBBINARY, SYBTEXT, or SYBIMAGE\0" }
7884 : , { SYBEBCITBLEN, EXPROGRAM, "bcp_init: tblname parameter is too long\0" }
7885 : , { SYBEBCITBNM, EXPROGRAM, "bcp_init: tblname parameter cannot be NULL\0" }
7886 : , { SYBEBCMTXT, EXPROGRAM, "bcp_moretext may be used only when there is at least one text or image column in "
7887 : "the server table\0" }
7888 : , { SYBEBCNL, EXNONFATAL, "Negative length-prefix found in BCP data-file\0" }
7889 : , { SYBEBCNN, EXUSER, "Attempt to bulk copy a NULL value into a Server column "
7890 : "which does not accept null values\0" }
7891 : , { SYBEBCNT, EXUSER, "Attempt to use Bulk Copy with a non-existent Server table\0" }
7892 : , { SYBEBCOR, EXCONSISTENCY, "Attempt to bulk copy an oversized row to the server\0" }
7893 : , { SYBEBCPB, EXPROGRAM, "bcp_bind, bcp_moretext and bcp_sendrow may not be used after bcp_init has been "
7894 : "passed a non-NULL input file name\0" }
7895 : , { SYBEBCPCTYP, EXPROGRAM, "bcp_colfmt: If table_colnum is 0, host_type cannot be 0\0" }
7896 : , { SYBEBCPI, EXPROGRAM, "bcp_init must be called before any other bcp routines\0" }
7897 : , { SYBEBCPN, EXPROGRAM, "bcp_bind, bcp_collen, bcp_colptr, bcp_moretext and bcp_sendrow may be used only "
7898 : "after bcp_init has been called with the copy direction set to DB_IN\0" }
7899 : , { SYBEBCPREC, EXNONFATAL, "Column %1!: Illegal precision value encountered\0%d" }
7900 : , { SYBEBCPREF, EXPROGRAM, "Illegal prefix length. Legal values are -1, 0, 1, 2 or 4\0" }
7901 : , { SYBEBCRE, EXNONFATAL, "I/O error while reading bcp datafile\0" }
7902 : , { SYBEBCRO, EXINFO, "The BCP hostfile '%1!' contains only %2! rows. It was impossible to read the "
7903 : "requested %3! rows\0%s %d %d" }
7904 : , { SYBEBCSA, EXUSER, "The BCP hostfile '%1!' contains only %2! rows. "
7905 : "Skipping all of these rows is not allowed\0%s %d" }
7906 : , { SYBEBCSET, EXCONSISTENCY, "Unknown character-set encountered\0" }
7907 : , { SYBEBCSI, EXPROGRAM, "Host-file columns may be skipped only when copying into the Server\0" }
7908 : , { SYBEBCSNDROW, EXPROGRAM, "bcp_sendrow may not be called unless all text data for the previous row has been "
7909 : "sent using bcp_moretext\0" }
7910 : , { SYBEBCSNTYP, EXPROGRAM, "column number %1!: if varaddr is NULL and varlen greater than 0, the table column "
7911 : "type must be SYBTEXT or SYBIMAGE and the program variable type must be SYBTEXT, "
7912 : "SYBCHAR, SYBIMAGE or SYBBINARY\0%d" }
7913 : , { SYBEBCUC, EXRESOURCE, "bcp: Unable to close host datafile\0" }
7914 : , { SYBEBCUO, EXRESOURCE, "bcp: Unable to open host datafile\0" }
7915 : , { SYBEBCVH, EXPROGRAM, "bcp_exec may be called only after bcp_init has been passed a valid host file\0" }
7916 : , { SYBEBCVLEN, EXPROGRAM, "varlen should be greater than or equal to -1\0" }
7917 : , { SYBEBCWE, EXNONFATAL, "I/O error while writing bcp datafile\0" }
7918 : , { SYBEBDIO, EXPROGRAM, "Bad bulk copy direction. Must be either IN or OUT\0" }
7919 : , { SYBEBEOF, EXNONFATAL, "Unexpected EOF encountered in bcp datafile\0" }
7920 : , { SYBEBIHC, EXPROGRAM, "Incorrect host-column number found in bcp format file\0" }
7921 : , { SYBEBIVI, EXPROGRAM, "bcp_columns, bcp_colfmt and bcp_colfmt_ps may be used only after bcp_init has been "
7922 : "passed a valid input file\0" }
7923 : , { SYBEBNCR, EXPROGRAM, "Attempt to bind user variable to a non-existent compute row\0" }
7924 : , { SYBEBNUM, EXPROGRAM, "Bad numbytes parameter passed to dbstrcpy\0" }
7925 : , { SYBEBPKS, EXPROGRAM, "In DBSETLPACKET, the packet size parameter must be between 0 and 999999\0" }
7926 : , { SYBEBPREC, EXPROGRAM, "Illegal precision specified\0" }
7927 : , { SYBEBPROBADDEF, EXCONSISTENCY, "bcp protocol error: illegal default column id received\0" }
7928 : , { SYBEBPROCOL, EXCONSISTENCY, "bcp protocol error: returned column count differs from the actual number of "
7929 : "columns received\0" }
7930 : , { SYBEBPRODEF, EXCONSISTENCY, "bcp protocol error: expected default information and got none\0" }
7931 : , { SYBEBPRODEFID, EXCONSISTENCY, "bcp protocol error: default column id and actual column id are not same\0" }
7932 : , { SYBEBPRODEFTYP, EXCONSISTENCY, "bcp protocol error: default value datatype differs from column datatype\0" }
7933 : , { SYBEBPROEXTDEF, EXCONSISTENCY, "bcp protocol error: more than one row of default information received\0" }
7934 : , { SYBEBPROEXTRES, EXCONSISTENCY, "bcp protocol error: unexpected set of results received\0" }
7935 : , { SYBEBPRONODEF, EXCONSISTENCY, "bcp protocol error: default value received for column that does not have default\0" }
7936 : , { SYBEBPRONUMDEF, EXCONSISTENCY, "bcp protocol error: expected number of defaults differs from the actual number of "
7937 : "defaults received\0" }
7938 : , { SYBEBRFF, EXRESOURCE, "I/O error while reading bcp format file\0" }
7939 : , { SYBEBSCALE, EXPROGRAM, "Illegal scale specified\0" }
7940 : , { SYBEBTMT, EXPROGRAM, "Attempt to send too much text data via the bcp_moretext call\0" }
7941 : , { SYBEBTOK, EXCOMM, "Bad token from the server: Datastream processing out of sync\0" }
7942 : , { SYBEBTYP, EXPROGRAM, "Unknown bind type passed to DB-Library function\0" }
7943 : , { SYBEBTYPSRV, EXPROGRAM, "Datatype is not supported by the server\0" }
7944 : , { SYBEBUCE, EXRESOURCE, "bcp: Unable to close error file\0" }
7945 : , { SYBEBUCF, EXPROGRAM, "bcp: Unable to close format file\0" }
7946 : , { SYBEBUDF, EXPROGRAM, "bcp: Unrecognized datatype found in format file\0" }
7947 : , { SYBEBUFF, EXPROGRAM, "bcp: Unable to create format file\0" }
7948 : , { SYBEBUFL, EXCONSISTENCY, "DB-Library internal error-send buffer length corrupted\0" }
7949 : , { SYBEBUOE, EXRESOURCE, "bcp: Unable to open error file\0" }
7950 : , { SYBEBUOF, EXPROGRAM, "bcp: Unable to open format file\0" }
7951 : , { SYBEBWEF, EXNONFATAL, "I/O error while writing bcp error file\0" }
7952 : , { SYBEBWFF, EXRESOURCE, "I/O error while writing bcp format file\0" }
7953 : , { SYBECAP, EXCOMM, "DB-Library capabilities not accepted by the Server\0" }
7954 : , { SYBECAPTYP, EXCOMM, "Unexpected capability type in CAPABILITY datastream\0" }
7955 : , { SYBECDNS, EXCONSISTENCY, "Datastream indicates that a compute column is derived from a non-existent select "
7956 : "list member\0" }
7957 : , { SYBECDOMAIN, EXCONVERSION, "Source field value is not within the domain of legal values\0" }
7958 : , { SYBECINTERNAL, EXCONVERSION, "Internal Conversion error\0" }
7959 : , { SYBECLOS, EXCOMM, "Error in closing network connection\0" }
7960 : , { SYBECLPR, EXCONVERSION, "Data conversion resulted in loss of precision\0" }
7961 : , { SYBECNOR, EXPROGRAM, "Column number out of range\0" }
7962 : , { SYBECNOV, EXCONVERSION, "Attempt to set variable to NULL resulted in overflow\0" }
7963 : , { SYBECOFL, EXCONVERSION, "Data conversion resulted in overflow\0" }
7964 : , { SYBECONN, EXCOMM, "Unable to connect: TDS server is unavailable or does not exist\0" }
7965 : , { SYBECRNC, EXPROGRAM, "The current row is not a result of compute clause %1!, so it is illegal to attempt "
7966 : "to extract that data from this row\0%d" }
7967 : , { SYBECRSAGR, EXPROGRAM, "Aggregate functions are not allowed in a cursor statement\0" }
7968 : , { SYBECRSBROL, EXPROGRAM, "Backward scrolling cannot be used in a forward scrolling cursor\0" }
7969 : , { SYBECRSBSKEY, EXPROGRAM, "Keyset cannot be scrolled backward in mixed cursors with a previous fetch type\0" }
7970 : , { SYBECRSBUFR, EXPROGRAM, "Row buffering should not be turned on when using cursor APIs\0" }
7971 : , { SYBECRSDIS, EXPROGRAM, "Cursor statement contains one of the disallowed phrases compute, union, for "
7972 : "browse, or select into\0" }
7973 : , { SYBECRSFLAST, EXPROGRAM, "Fetch type LAST requires fully keyset driven cursors\0" }
7974 : , { SYBECRSFRAND, EXPROGRAM, "Fetch types RANDOM and RELATIVE can only be used within the keyset of keyset "
7975 : "driven cursors\0" }
7976 : , { SYBECRSFROWN, EXPROGRAM, "Row number to be fetched is outside valid range\0" }
7977 : , { SYBECRSFTYPE, EXRESOURCE, "Unknown fetch type\0" }
7978 : , { SYBECRSINV, EXPROGRAM, "Invalid cursor statement\0" }
7979 : , { SYBECRSINVALID, EXRESOURCE, "The cursor handle is invalid\0" }
7980 : , { SYBECRSMROWS, EXRESOURCE, "Multiple rows are returned, only one is expected while retrieving dbname\0" }
7981 : , { SYBECRSNOBIND, EXPROGRAM, "Cursor bind must be called prior to dbcursor invocation\0" }
7982 : , { SYBECRSNOCOUNT, EXPROGRAM, "The DBNOCOUNT option should not be turned on "
7983 : "when doing updates or deletes with dbcursor\0" }
7984 : , { SYBECRSNOFREE, EXPROGRAM, "The DBNOAUTOFREE option should not be turned on when using cursor APIs\0" }
7985 : , { SYBECRSNOIND, EXPROGRAM, "One of the tables involved in the cursor statement does not have a unique index\0" }
7986 : , { SYBECRSNOKEYS, EXRESOURCE, "The entire keyset must be defined for KEYSET type cursors\0" }
7987 : , { SYBECRSNOLEN, EXRESOURCE, "No unique index found\0" }
7988 : , { SYBECRSNOPTCC, EXRESOURCE, "No OPTCC was found\0" }
7989 : , { SYBECRSNORDER, EXRESOURCE, "The order of clauses must be from, where, and order by\0" }
7990 : , { SYBECRSNORES, EXPROGRAM, "Cursor statement generated no results\0" }
7991 : , { SYBECRSNROWS, EXRESOURCE, "No rows returned, at least one is expected\0" }
7992 : , { SYBECRSNOTABLE, EXRESOURCE, "Table name is NULL\0" }
7993 : , { SYBECRSNOUPD, EXPROGRAM, "Update or delete operation did not affect any rows\0" }
7994 : , { SYBECRSNOWHERE, EXPROGRAM, "A WHERE clause is not allowed in a cursor update or insert\0" }
7995 : , { SYBECRSNUNIQUE, EXRESOURCE, "No unique keys associated with this view\0" }
7996 : , { SYBECRSORD, EXPROGRAM, "Only fully keyset driven cursors can have order by, group by, or having phrases\0" }
7997 : , { SYBECRSRO, EXPROGRAM, "Data locking or modifications cannot be made in a READONLY cursor\0" }
7998 : , { SYBECRSSET, EXPROGRAM, "A SET clause is required for a cursor update or insert\0" }
7999 : , { SYBECRSTAB, EXPROGRAM, "Table name must be determined in operations involving data locking or modifications\0" }
8000 : , { SYBECRSVAR, EXRESOURCE, "There is no valid address associated with this bind\0" }
8001 : , { SYBECRSVIEW, EXPROGRAM, "A view cannot be joined with another table or a view in a cursor statement\0" }
8002 : , { SYBECRSVIIND, EXPROGRAM, "The view used in the cursor statement does not include all the unique index "
8003 : "columns of the underlying tables\0" }
8004 : , { SYBECRSUPDNB, EXPROGRAM, "Update or insert operations cannot use bind variables when binding type is NOBIND\0" }
8005 : , { SYBECRSUPDTAB, EXPROGRAM, "Update or insert operations using bind variables require single table cursors\0" }
8006 : , { SYBECSYN, EXCONVERSION, "Attempt to convert data stopped by syntax error in source field\0" }
8007 : , { SYBECUFL, EXCONVERSION, "Data conversion resulted in underflow\0" }
8008 : , { SYBECWLL, EXPROGRAM, "Attempt to set column width less than 1\0" }
8009 : , { SYBEDBPS, EXRESOURCE, "Maximum number of DBPROCESSes already allocated\0" }
8010 : , { SYBEDDNE, EXCOMM, "DBPROCESS is dead or not enabled\0" }
8011 : , { SYBEDIVZ, EXUSER, "Attempt to divide by $0.00 in function %1!\0%s" }
8012 : , { SYBEDNTI, EXPROGRAM, "Attempt to use dbtxtsput to put a new text timestamp into a column whose datatype "
8013 : "is neither SYBTEXT nor SYBIMAGE\0" }
8014 : , { SYBEDPOR, EXPROGRAM, "Out-of-range datepart constant\0" }
8015 : , { SYBEDVOR, EXPROGRAM, "Day values must be between 1 and 7\0" }
8016 : , { SYBEECAN, EXINFO, "Attempted to cancel unrequested event notification\0" }
8017 : , { SYBEEINI, EXINFO, "Must call dbreginit before dbregexec\0" }
8018 : , { SYBEETD, EXPROGRAM, "Failure to send the expected amount of TEXT or IMAGE data via dbmoretext\0" }
8019 : , { SYBEEUNR, EXCOMM, "Unsolicited event notification received\0" }
8020 : , { SYBEEVOP, EXINFO, "Called dbregwatch with a bad options parameter\0" }
8021 : , { SYBEEVST, EXINFO, "Must initiate a transaction before calling dbregparam\0" }
8022 : , { SYBEFCON, EXCOMM, "TDS server connection failed\0" }
8023 : , { SYBEFRES, EXFATAL, "Challenge-Response function failed\0" }
8024 : , { SYBEFSHD, EXRESOURCE, "Error in attempting to find the Sybase home directory\0" }
8025 : , { SYBEFUNC, EXPROGRAM, "Functionality not supported at the specified version level\0" }
8026 : , { SYBEICN, EXPROGRAM, "Invalid computeid or compute column number\0" }
8027 : , { SYBEIDCL, EXCONSISTENCY, "Illegal datetime column length returned by TDS server. Legal datetime lengths "
8028 : "are 4 and 8 bytes\0" }
8029 : , { SYBEIDECCL, EXCONSISTENCY, "Invalid decimal column length returned by the server\0" }
8030 : , { SYBEIFCL, EXCONSISTENCY, "Illegal floating-point column length returned by TDS server. Legal "
8031 : "floating-point lengths are 4 and 8 bytes\0" }
8032 : , { SYBEIFNB, EXPROGRAM, "Illegal field number passed to bcp_control\0" }
8033 : , { SYBEIICL, EXCONSISTENCY, "Illegal integer column length returned by TDS server. Legal integer lengths "
8034 : "are 1, 2, and 4 bytes\0" }
8035 : , { SYBEIMCL, EXCONSISTENCY, "Illegal money column length returned by TDS server. Legal money lengths are 4 "
8036 : "and 8 bytes\0" }
8037 : , { SYBEINLN, EXUSER, "Interface file: unexpected end-of-line\0" }
8038 : , { SYBEINTF, EXUSER, "Server name not found in configuration files\0" }
8039 : , { SYBEINUMCL, EXCONSISTENCY, "Invalid numeric column length returned by the server\0" }
8040 : , { SYBEIPV, EXINFO, "%1! is an illegal value for the %2! parameter of %3!\0%d %s %s" }
8041 : , { SYBEISOI, EXCONSISTENCY, "International Release: Invalid sort-order information found\0" }
8042 : , { SYBEISRVPREC, EXCONSISTENCY, "Illegal precision value returned by the server\0" }
8043 : , { SYBEISRVSCL, EXCONSISTENCY, "Illegal scale value returned by the server\0" }
8044 : , { SYBEITIM, EXPROGRAM, "Illegal timeout value specified\0" }
8045 : , { SYBEIVERS, EXPROGRAM, "Illegal version level specified\0" }
8046 : , { SYBEKBCI, EXINFO, "1000 rows sent to the server\0" }
8047 : , { SYBEKBCO, EXINFO, "1000 rows successfully bulk copied to host file\0" }
8048 : , { SYBEMEM, EXRESOURCE, "Unable to allocate sufficient memory\0" }
8049 : , { SYBEMOV, EXUSER, "Money arithmetic resulted in overflow in function %1!\0%s" }
8050 : , { SYBEMPLL, EXUSER, "Attempt to set maximum number of DBPROCESSes lower than 1\0" }
8051 : , { SYBEMVOR, EXPROGRAM, "Month values must be between 1 and 12\0" }
8052 : , { SYBENBUF, EXINFO, "Called dbsendpassthru with a NULL buf parameter\0" }
8053 : , { SYBENBVP, EXPROGRAM, "Cannot pass dbsetnull a NULL bindval pointer\0" }
8054 : , { SYBENDC, EXPROGRAM, "Cannot have negative component in date in numeric form\0" }
8055 : , { SYBENDTP, EXPROGRAM, "Called dbdatecrack with NULL datetime parameter\0" }
8056 : , { SYBENEG, EXCOMM, "Negotiated login attempt failed\0" }
8057 : , { SYBENHAN, EXINFO, "Called dbrecvpassthru with a NULL handle parameter\0" }
8058 : , { SYBENMOB, EXPROGRAM, "No such member of order by clause\0" }
8059 : , { SYBENOEV, EXINFO, "DBPOLL can not be called when registered procedure notifications have been disabled\0" }
8060 : , { SYBENPRM, EXPROGRAM, "NULL parameter not allowed for this dboption\0" }
8061 : , { SYBENSIP, EXPROGRAM, "Negative starting index passed to dbstrcpy\0" }
8062 : , { SYBENTLL, EXUSER, "Name too long for LOGINREC field\0" }
8063 : , { SYBENTTN, EXPROGRAM, "Attempt to use dbtxtsput to put a new text timestamp into a non-existent data row\0" }
8064 : , { SYBENULL, EXINFO, "NULL DBPROCESS pointer passed to DB-Library\0" }
8065 : , { SYBENULP, EXPROGRAM, "Called %1! with parameter %2! NULL\0%s %d" }
8066 : , { SYBENXID, EXNONFATAL, "The Server did not grant us a distributed-transaction ID\0" }
8067 : , { SYBEONCE, EXPROGRAM, "Function can be called only once\0" }
8068 : , { SYBEOOB, EXCOMM, "Error in sending out-of-band data to the server\0" }
8069 : , { SYBEOPIN, EXNONFATAL, "Could not open interface file\0" }
8070 : , { SYBEOPNA, EXNONFATAL, "Option is not available with current server\0" }
8071 : , { SYBEOREN, EXINFO, "International Release: Warning: an out-of-range error-number was encountered in "
8072 : "dblib.loc. The maximum permissible error-number is defined as DBERRCOUNT in sybdb.h\0" }
8073 : , { SYBEORPF, EXUSER, "Attempt to set remote password would overflow "
8074 : "the login record's remote password field\0" }
8075 : , { SYBEPOLL, EXINFO, "There is already an active dbpoll\0" }
8076 : , { SYBEPRTF, EXINFO, "dbtracestring may only be called from a printfunc\0" }
8077 : , { SYBEPWD, EXUSER, "Login incorrect\0" }
8078 : , { SYBERDCN, EXCONVERSION, "Requested data conversion does not exist\0" }
8079 : , { SYBERDNR, EXPROGRAM, "Attempt to retrieve data from a non-existent row\0" }
8080 : , { SYBEREAD, EXCOMM, "Read from the server failed\0" }
8081 : , { SYBERESP, EXPROGRAM, "Response function address passed to dbresponse must be non-NULL\0" }
8082 : , { SYBERPCS, EXINFO, "Must call dbrpcinit before dbrpcparam or dbrpcsend\0" }
8083 : , { SYBERPIL, EXPROGRAM, "It is illegal to pass -1 to dbrpcparam for the datalen of parameters which are of "
8084 : "type SYBCHAR, SYBVARCHAR, SYBBINARY, or SYBVARBINARY\0" }
8085 : , { SYBERPNA, EXNONFATAL, "The RPC facility is available only when using a server whose version number is 4.0 "
8086 : "or later\0" }
8087 : , { SYBERPND, EXPROGRAM, "Attempt to initiate a new TDS server operation with results pending\0" }
8088 : , { SYBERPNULL, EXPROGRAM, "value parameter for dbrpcparam can be NULL, only if the datalen parameter is 0\0" }
8089 : , { SYBERPTXTIM, EXPROGRAM, "RPC parameters cannot be of type text or image\0" }
8090 : , { SYBERPUL, EXPROGRAM, "When passing a SYBINTN, SYBDATETIMN, SYBMONEYN, or SYBFLTN parameter via "
8091 : "dbrpcparam, it is necessary to specify the parameter's maximum or actual length so "
8092 : "that DB-Library can recognize it as a SYINT1, SYBINT2, SYBINT4, SYBMONEY, SYBMONEY4, "
8093 : "and so on\0" }
8094 : , { SYBERTCC, EXPROGRAM, "dbreadtext may not be used to receive the results of a query that contains a "
8095 : "COMPUTE clause\0" }
8096 : , { SYBERTSC, EXPROGRAM, "dbreadtext may be used only to receive the results of a query that contains a "
8097 : "single result column\0" }
8098 : , { SYBERXID, EXNONFATAL, "The Server did not recognize our distributed-transaction ID\0" }
8099 : , { SYBESECURE, EXPROGRAM, "Secure SQL Server function not supported in this version\0" }
8100 : , { SYBESEFA, EXPROGRAM, "DBSETNOTIFS cannot be called if connections are present\0" }
8101 : , { SYBESEOF, EXCOMM, "Unexpected EOF from the server\0" }
8102 : , { SYBESFOV, EXPROGRAM, "International Release: dbsafestr overflowed its destination buffer\0" }
8103 : , { SYBESMSG, EXSERVER, "General TDS server error: Check messages from the server\0" }
8104 : , { SYBESOCK, EXCOMM, "Unable to open socket\0" }
8105 : , { SYBESPID, EXPROGRAM, "Called dbspid with a NULL dbproc\0" }
8106 : , { SYBESYNC, EXCOMM, "Read attempted while out of synchronization with TDS server\0" }
8107 : , { SYBETEXS, EXINFO, "Called dbmoretext with a bad size parameter\0" }
8108 : , { SYBETIME, EXTIME, "TDS server connection timed out\0" }
8109 : , { SYBETMCF, EXPROGRAM, "Attempt to install too many custom formats via dbfmtinstall\0" }
8110 : , { SYBETMTD, EXPROGRAM, "Attempt to send too much TEXT data via the dbmoretext call\0" }
8111 : , { SYBETPAR, EXPROGRAM, "No SYBTEXT or SYBIMAGE parameters were defined\0" }
8112 : , { SYBETPTN, EXUSER, "Syntax error: only two periods are permitted in table names\0" }
8113 : , { SYBETRAC, EXINFO, "Attempted to turn off a trace flag that was not on\0" }
8114 : , { SYBETRAN, EXINFO, "DBPROCESS is being used for another transaction\0" }
8115 : , { SYBETRAS, EXINFO, "DB-Library internal error - trace structure not found\0" }
8116 : , { SYBETRSN, EXINFO, "Bad numbytes parameter passed to dbtracestring\0" }
8117 : , { SYBETSIT, EXINFO, "Attempt to call dbtsput with an invalid timestamp\0" }
8118 : , { SYBETTS, EXUSER, "The table which bulk copy is attempting to copy to a host file is shorter than the "
8119 : "number of rows which bulk copy was instructed to skip\0" }
8120 : , { SYBETYPE, EXINFO, "Invalid argument type given to Hyper/DB-Library\0" }
8121 : , { SYBEUCPT, EXUSER, "Unrecognized custom-format parameter-type encountered in dbstrbuild\0" }
8122 : , { SYBEUCRR, EXCONSISTENCY, "Internal software error: Unknown connection result reported by dbpasswd\0" }
8123 : , { SYBEUDTY, EXCONSISTENCY, "Unknown datatype encountered\0" }
8124 : , { SYBEUFDS, EXUSER, "Unrecognized format encountered in dbstrbuild\0" }
8125 : , { SYBEUFDT, EXCONSISTENCY, "Unknown fixed-length datatype encountered\0" }
8126 : , { SYBEUHST, EXUSER, "Unknown host machine name\0" }
8127 : , { SYBEUMSG, EXCOMM, "Unknown message-id in MSG datastream\0" }
8128 : , { SYBEUNAM, EXFATAL, "Unable to get current user name from operating system\0" }
8129 : , { SYBEUNOP, EXNONFATAL, "Unknown option passed to dbsetopt\0" }
8130 : , { SYBEUNT, EXUSER, "Unknown network type found in interface file\0" }
8131 : , { SYBEURCI, EXRESOURCE, "International Release: Unable to read copyright information from the DB-Library "
8132 : "localization file\0" }
8133 : , { SYBEUREI, EXRESOURCE, "International Release: Unable to read error information from the DB-Library "
8134 : "localization file\0" }
8135 : , { SYBEUREM, EXRESOURCE, "International Release: Unable to read error mnemonic from the DB-Library "
8136 : "localization file\0" }
8137 : , { SYBEURES, EXRESOURCE, "International Release: Unable to read error string from the DB-Library "
8138 : "localization file. 401 Error severities\0" }
8139 : , { SYBEURMI, EXRESOURCE, "International Release: Unable to read money-format information from the DB-Library "
8140 : "localization file\0" }
8141 : , { SYBEUSCT, EXCOMM, "Unable to set communications timer\0" }
8142 : , { SYBEUTDS, EXCOMM, "Unrecognized TDS version received from the server\0" }
8143 : , { SYBEUVBF, EXPROGRAM, "Attempt to read an unknown version of bcp format file\0" }
8144 : , { SYBEUVDT, EXCONSISTENCY, "Unknown variable-length datatype encountered\0" }
8145 : , { SYBEVDPT, EXUSER, "For bulk copy, all variable-length data must have either a length-prefix or a "
8146 : "terminator specified\0" }
8147 : , { SYBEWAID, EXCONSISTENCY, "DB-Library internal error: ALTFMT following ALTNAME has wrong id\0" }
8148 : , { SYBEWRIT, EXCOMM, "Write to the server failed\0" }
8149 : , { SYBEXOCI, EXNONFATAL, "International Release: A character-set translation overflowed its destination "
8150 : "buffer while using bcp to copy data from a host-file to the server\0" }
8151 : , { SYBEXTDN, EXPROGRAM, "Warning: the xlt_todisp parameter to dbfree_xlate was NULL. The space associated "
8152 : "with the xlt_tosrv parameter has been freed\0" }
8153 : , { SYBEXTN, EXPROGRAM, "The xlt_tosrv and xlt_todisp parameters to dbfree_xlate were NULL\0" }
8154 : , { SYBEXTSN, EXPROGRAM, "Warning: the xlt_tosrv parameter to dbfree_xlate was NULL. The space associated "
8155 : "with the xlt_todisp parameter has been freed\0" }
8156 : , { SYBEZTXT, EXINFO, "Attempt to send zero length TEXT or IMAGE to dataserver via dbwritetext\0" }
8157 : , { SYBECOLSIZE, EXINFO, "Invalid column information structure size\0" }
8158 : };
8159 :
8160 : /** \internal
8161 : * \ingroup dblib_internal
8162 : * \brief Call client-installed error handler
8163 : *
8164 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
8165 : * \param msgno identifies the error message to be passed to the client's handler.
8166 : * \param errnum identifies the OS error (errno), if any. Use 0 if not applicable.
8167 : * \returns the handler's return code, subject to correction and adjustment for vendor style:
8168 : * - INT_CANCEL The db-lib function that encountered the error will return FAIL.
8169 : * - INT_TIMEOUT The db-lib function will cancel the operation and return FAIL. \a dbproc remains useable.
8170 : * - INT_CONTINUE The db-lib function will retry the operation.
8171 : * \remarks
8172 : * The client-installed handler may also return INT_EXIT. If Sybase semantics are used, this function notifies
8173 : * the user and calls exit(3). If Microsoft semantics are used, this function returns INT_CANCEL.
8174 : *
8175 : * If the client-installed handler returns something other than these four INT_* values, or returns timeout-related
8176 : * value for anything but SYBETIME, it's treated here as INT_EXIT (see above).
8177 : *
8178 : * Instead of sprinkling error text all over db-lib, we consolidate it here,
8179 : * where it can be translated (one day), and where it can be mapped to the TDS error number.
8180 : * The libraries don't use consistent error numbers or messages, so when libtds has to emit
8181 : * an error message, it can't include the text. It can pass its error number to a client-library
8182 : * function, which will interpret it, add the text, call the application's installed handler
8183 : * (if any) and return the handler's return code back to the caller.
8184 : *
8185 : * The call stack may look something like this:
8186 : *
8187 : * -# application
8188 : * -# db-lib function (encounters error)
8189 : * -# dbperror
8190 : * -# error handler (installed by application)
8191 : *
8192 : * The error handling in this case is unambiguous: the caller invokes this function, the client's handler returns its
8193 : * instruction, which the caller receives. Quite often the caller will get INT_CANCEL, in which case it should put its
8194 : * house in order and return FAIL.
8195 : *
8196 : * The call stack may otherwise look something like this:
8197 : *
8198 : * -# application
8199 : * -# db-lib function
8200 : * -# libtds function (encounters error)
8201 : * -# _dblib_handle_err_message
8202 : * -# dbperror
8203 : * -# error handler (installed by application)
8204 : *
8205 : * Because different client libraries specify their handler semantics differently,
8206 : * and because libtds doesn't know which client library is in charge of any given connection, it cannot interpret the
8207 : * raw return code from a db-lib error handler. For these reasons,
8208 : * libtds calls _dblib_handle_err_message, which translates between libtds and db-lib semantics.
8209 : * \sa dberrhandle(), _dblib_handle_err_message().
8210 : */
8211 : int
8212 260 : dbperror(DBPROCESS *dbproc, DBINT msgno, long errnum, ...)
8213 : {
8214 : static const char int_exit_text[] = "FreeTDS: db-lib: exiting because client error handler returned %s for msgno %d\n";
8215 : static const char int_invalid_text[] = "%s (%d) received from client-installed error handler for nontimeout for error %d."
8216 : " Treating as INT_EXIT\n";
8217 : static const DBLIB_ERROR_MESSAGE default_message = { 0, EXCONSISTENCY, "unrecognized msgno" };
8218 260 : DBLIB_ERROR_MESSAGE constructed_message = { 0, EXCONSISTENCY, NULL };
8219 260 : const DBLIB_ERROR_MESSAGE *msg = &default_message;
8220 :
8221 260 : int i, rc = INT_CANCEL;
8222 260 : const char *os_msgtext = strerror((int) errnum);
8223 260 : const char *rc_name = "logic error";
8224 : char rc_buf[16];
8225 :
8226 260 : tdsdump_log(TDS_DBG_FUNC, "dbperror(%p, %d, %ld)\n", dbproc, msgno, errnum); /* dbproc can be NULL */
8227 :
8228 : #ifdef _WIN32
8229 : /*
8230 : * Unfortunately MinGW uses the "old" msvcrt.dll (Visual C++ 2005 uses
8231 : * a newer version) which does not set errno when allocation functions
8232 : * cannot allocate memory, so we do it for them.
8233 : */
8234 : if (msgno == SYBEMEM)
8235 : errnum = ENOMEM;
8236 : #endif
8237 :
8238 260 : if (os_msgtext == NULL)
8239 0 : os_msgtext = "no OS error";
8240 :
8241 260 : assert(_dblib_err_handler != NULL); /* always installed by dbinit() or dberrhandle() */
8242 :
8243 : /* look up the error message */
8244 89840 : for (i = 0; i < TDS_VECTOR_SIZE(dblib_error_messages); i++) {
8245 : const char *ptext, *pformats;
8246 :
8247 45050 : if (dblib_error_messages[i].msgno != msgno)
8248 44790 : continue;
8249 :
8250 : /*
8251 : * See if the message has placeholders. If so, build a message string on the heap.
8252 : * The presence of placeholders is indicated by the existence of a "string after the string",
8253 : * i.e., a format string (for dbstrbuild) after a null "terminator" in the message.
8254 : * On error -- can't allocate, can't build the string -- give up and call the client handler anyway.
8255 : */
8256 260 : ptext = dblib_error_messages[i].msgtext;
8257 260 : pformats = ptext + strlen(ptext) + 1;
8258 260 : msg = &dblib_error_messages[i];
8259 260 : assert(*(pformats - 1) == '\0');
8260 260 : if (*pformats != '\0') {
8261 : va_list ap;
8262 10 : int result_len, len = 2 * (int) strlen(ptext);
8263 10 : char *buffer = tds_new0(char, len);
8264 :
8265 10 : if (buffer == NULL)
8266 : break;
8267 10 : va_start(ap, errnum);
8268 10 : rc = tds_vstrbuild(buffer, len, &result_len, ptext, TDS_NULLTERM, pformats, TDS_NULLTERM, ap);
8269 10 : buffer[result_len] = '\0';
8270 10 : va_end(ap);
8271 10 : if (TDS_FAILED(rc)) {
8272 0 : free(buffer);
8273 0 : break;
8274 : }
8275 10 : constructed_message.msgtext = buffer;
8276 10 : constructed_message.severity = msg->severity;
8277 10 : msg = &constructed_message;
8278 : }
8279 : break;
8280 : }
8281 :
8282 260 : if (dbproc && dbproc->tds_socket && dbproc->tds_socket->login) {
8283 0 : DSTR server_name_dstr = dbproc->tds_socket->login->server_name;
8284 0 : if (!tds_dstr_isempty(&server_name_dstr)) {
8285 0 : char * buffer = NULL;
8286 0 : if (asprintf(&buffer, "%s (%s)", msg->msgtext,
8287 : tds_dstr_cstr(&server_name_dstr)) >= 0) {
8288 0 : free((char*) constructed_message.msgtext);
8289 0 : constructed_message.msgtext = buffer;
8290 0 : constructed_message.severity = msg->severity;
8291 0 : msg = &constructed_message;
8292 : }
8293 : }
8294 : }
8295 :
8296 260 : tdsdump_log(TDS_DBG_FUNC, "dbperror: Calling dblib_err_handler with msgno = %d; msg->msgtext = \"%s\"\n",
8297 : msgno, msg->msgtext);
8298 :
8299 : /* call the error handler */
8300 260 : rc = (*_dblib_err_handler)(dbproc, msg->severity, msgno, (int) errnum, (char*) msg->msgtext, (char*) os_msgtext);
8301 260 : switch (rc) {
8302 : case INT_EXIT:
8303 : rc_name = "INT_EXIT";
8304 : break;
8305 40 : case INT_CONTINUE:
8306 40 : rc_name = "INT_CONTINUE";
8307 40 : break;
8308 200 : case INT_CANCEL:
8309 200 : rc_name = "INT_CANCEL";
8310 200 : break;
8311 20 : case INT_TIMEOUT:
8312 20 : rc_name = "INT_TIMEOUT";
8313 20 : break;
8314 0 : default:
8315 0 : rc_name = "invalid";
8316 0 : break;
8317 : }
8318 260 : tdsdump_log(TDS_DBG_FUNC, "dbperror: dblib_err_handler for msgno = %d; msg->msgtext = \"%s\" -- returns %d (%s)\n",
8319 : msgno, msg->msgtext, rc, rc_name);
8320 :
8321 : /* we're done with the dynamic string now. */
8322 260 : free((char*) constructed_message.msgtext);
8323 :
8324 : /* Timeout return codes are errors for non-timeout conditions. */
8325 260 : if (msgno != SYBETIME) {
8326 190 : switch (rc) {
8327 0 : case INT_CONTINUE:
8328 0 : tdsdump_log(TDS_DBG_SEVERE, int_invalid_text, "INT_CONTINUE", rc, msgno);
8329 : rc = INT_EXIT;
8330 : break;
8331 0 : case INT_TIMEOUT:
8332 0 : tdsdump_log(TDS_DBG_SEVERE, int_invalid_text, "INT_TIMEOUT", rc, msgno);
8333 : rc = INT_EXIT;
8334 : break;
8335 : default:
8336 : break;
8337 : }
8338 70 : }
8339 :
8340 : /*
8341 : * Sybase exits on INT_EXIT; Microsoft converts to INT_CANCEL.
8342 : * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dblibc/dbc_pdc04c_6v39.asp
8343 : */
8344 260 : switch (rc) {
8345 40 : case INT_CONTINUE:
8346 : /* Microsoft does not define INT_TIMEOUT. Instead, two consecutive INT_CONTINUEs yield INT_CANCEL. */
8347 40 : if (dbproc && dbproc->msdblib && ++dbproc->ntimeouts >=2) {
8348 0 : dbproc->ntimeouts = 0;
8349 0 : rc = INT_CANCEL;
8350 : } /* fall through */
8351 : case INT_CANCEL:
8352 : case INT_TIMEOUT:
8353 : return rc; /* normal case */
8354 : break;
8355 0 : default:
8356 0 : sprintf(rc_buf, "%d", rc);
8357 0 : rc_name = rc_buf;
8358 0 : tdsdump_log(TDS_DBG_SEVERE, int_invalid_text, "Invalid return code", rc, msgno);
8359 : /* fall through */
8360 : case INT_EXIT:
8361 0 : if (dbproc && dbproc->msdblib) {
8362 : /* Microsoft behavior */
8363 : return INT_CANCEL;
8364 : }
8365 : /* fprintf(stderr, int_exit_text, rc_name, msgno); */
8366 0 : tdsdump_log(TDS_DBG_SEVERE, int_exit_text, rc_name, msgno);
8367 : break;
8368 : }
8369 0 : exit(EXIT_FAILURE);
8370 : return rc; /* not reached */
8371 : }
8372 :
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