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) 2010, 2011 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 : #include <stdio.h>
25 : #include <assert.h>
26 :
27 : #if HAVE_STRING_H
28 : #include <string.h>
29 : #endif /* HAVE_STRING_H */
30 :
31 : #if HAVE_STDLIB_H
32 : #include <stdlib.h>
33 : #endif /* HAVE_STDLIB_H */
34 :
35 : #if HAVE_UNISTD_H
36 : #include <unistd.h>
37 : #endif /* HAVE_UNISTD_H */
38 :
39 : #ifdef _WIN32
40 : #include <io.h>
41 : #endif
42 :
43 : #include <freetds/tds.h>
44 : #include <freetds/iconv.h>
45 : #include <freetds/convert.h>
46 : #include <freetds/bytes.h>
47 : #include <freetds/utils/string.h>
48 : #include <freetds/encodings.h>
49 : #include <freetds/replacements.h>
50 : #include <sybfront.h>
51 : #include <sybdb.h>
52 : #include <syberror.h>
53 : #include <dblib.h>
54 :
55 : #define HOST_COL_CONV_ERROR 1
56 : #define HOST_COL_NULL_ERROR 2
57 :
58 : #ifdef HAVE_FSEEKO
59 : typedef off_t offset_type;
60 : #elif defined(_WIN32) || defined(_WIN64)
61 : /* win32 version */
62 : typedef __int64 offset_type;
63 : # if defined(HAVE__FSEEKI64) && defined(HAVE__FTELLI64)
64 : # define fseeko(f,o,w) _fseeki64((f),o,w)
65 : # define ftello(f) _ftelli64((f))
66 : # else
67 : # define fseeko(f,o,w) (_lseeki64(fileno(f),o,w) == -1 ? -1 : 0)
68 : # define ftello(f) _telli64(fileno(f))
69 : # endif
70 : #else
71 : /* use old version */
72 : #define fseeko(f,o,w) fseek(f,o,w)
73 : #define ftello(f) ftell(f)
74 : typedef long offset_type;
75 : #endif
76 :
77 : static void _bcp_free_storage(DBPROCESS * dbproc);
78 : static void _bcp_free_columns(DBPROCESS * dbproc);
79 : static void _bcp_null_error(TDSBCPINFO *bcpinfo, int index, int offset);
80 : static TDSRET _bcp_get_col_data(TDSBCPINFO *bcpinfo, TDSCOLUMN *bindcol, int offset);
81 : static TDSRET _bcp_no_get_col_data(TDSBCPINFO *bcpinfo, TDSCOLUMN *bindcol, int offset);
82 :
83 : static int rtrim(char *, int);
84 : static int rtrim_u16(uint16_t *str, int len, uint16_t space);
85 : static STATUS _bcp_read_hostfile(DBPROCESS * dbproc, FILE * hostfile, bool *row_error, bool skip);
86 : static int _bcp_readfmt_colinfo(DBPROCESS * dbproc, char *buf, BCP_HOSTCOLINFO * ci);
87 : static int _bcp_get_term_var(const BYTE * pdata, const BYTE * term, int term_len);
88 :
89 : /*
90 : * "If a host file is being used ... the default data formats are as follows:
91 : *
92 : * > The order, type, length and number of the columns in the host file are
93 : * assumed to be identical to the order, type and number of the columns in the database table.
94 : * > If a given database column's data is fixed-length,
95 : * then the host file's data column will also be fixed-length.
96 : * > If a given database column's data is variable-length or may contain null values,
97 : * the host file's data column will be prefixed by
98 : * a 4-byte length value for SYBTEXT and SYBIMAGE data types, and
99 : * a 1-byte length value for all other types.
100 : * > There are no terminators of any kind between host file columns."
101 : */
102 :
103 : static void
104 280 : init_hostfile_columns(DBPROCESS *dbproc)
105 : {
106 280 : const int ncols = dbproc->bcpinfo->bindinfo->num_cols;
107 : RETCODE erc;
108 : int icol;
109 :
110 280 : if (ncols == 0)
111 : return;
112 :
113 280 : if ((erc = bcp_columns(dbproc, ncols)) != SUCCEED) {
114 0 : assert(erc == SUCCEED);
115 : return;
116 : }
117 :
118 1796 : for (icol = 0; icol < ncols; icol++) {
119 1516 : const TDSCOLUMN *pcol = dbproc->bcpinfo->bindinfo->columns[icol];
120 1516 : int prefixlen = 0, termlen = 0;
121 :
122 1516 : switch (pcol->column_type) {
123 : case SYBTEXT:
124 : case SYBIMAGE:
125 : prefixlen = 4;
126 : break;
127 1416 : default:
128 1416 : prefixlen = dbvarylen(dbproc, icol+1)? 1 : 0;
129 : }
130 :
131 1516 : erc = bcp_colfmt(dbproc, icol+1, pcol->column_type, prefixlen, pcol->column_size, NULL, termlen, icol+1);
132 :
133 1516 : assert(erc == SUCCEED);
134 : if (erc != SUCCEED)
135 : return;
136 : }
137 : }
138 :
139 :
140 : /**
141 : * \ingroup dblib_bcp
142 : * \brief Prepare for bulk copy operation on a table
143 : *
144 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
145 : * \param tblname the name of the table receiving or providing the data.
146 : * \param hfile the data file opposite the table, if any.
147 : * \param errfile the "error file" captures messages and, if errors are encountered,
148 : * copies of any rows that could not be written to the table.
149 : * \param direction one of
150 : * - \b DB_IN writing to the table
151 : * - \b DB_OUT writing to the host file
152 : * .
153 : * \remarks bcp_init() sets the host file data format and acquires the table metadata.
154 : * It is called before the other bulk copy functions.
155 : *
156 : * When writing to a table, bcp can use as its data source a data file (\a hfile),
157 : * or program data in an application's variables. In the latter case, call bcp_bind()
158 : * to associate your data with the appropriate table column.
159 : * \return SUCCEED or FAIL.
160 : * \sa BCP_SETL(), bcp_bind(), bcp_done(), bcp_exec()
161 : */
162 : RETCODE
163 318 : bcp_init(DBPROCESS * dbproc, const char *tblname, const char *hfile, const char *errfile, int direction)
164 : {
165 318 : tdsdump_log(TDS_DBG_FUNC, "bcp_init(%p, %s, %s, %s, %d)\n",
166 : dbproc, tblname? tblname:"NULL", hfile? hfile:"NULL", errfile? errfile:"NULL", direction);
167 318 : CHECK_CONN(FAIL);
168 :
169 : /*
170 : * Validate other parameters
171 : */
172 318 : if (dbproc->tds_socket->conn->tds_version < 0x500) {
173 0 : dbperror(dbproc, SYBETDSVER, 0);
174 0 : return FAIL;
175 : }
176 :
177 318 : if (tblname == NULL) {
178 0 : dbperror(dbproc, SYBEBCITBNM, 0);
179 0 : return FAIL;
180 : }
181 :
182 362 : if (direction != DB_QUERYOUT && !IS_TDS7_PLUS(dbproc->tds_socket->conn) &&
183 44 : strlen(tblname) > 92) { /* 30.30.30 for Sybase */
184 0 : dbperror(dbproc, SYBEBCITBLEN, 0);
185 0 : return FAIL;
186 : }
187 :
188 318 : if (direction != DB_IN && direction != DB_OUT && direction != DB_QUERYOUT) {
189 0 : dbperror(dbproc, SYBEBDIO, 0);
190 0 : return FAIL;
191 : }
192 :
193 : /* Free previously allocated storage in dbproc & initialise flags, etc. */
194 318 : _bcp_free_storage(dbproc);
195 :
196 : /* Allocate storage */
197 318 : dbproc->bcpinfo = tds_alloc_bcpinfo();
198 318 : if (dbproc->bcpinfo == NULL)
199 : goto memory_error;
200 :
201 318 : if (!tds_dstr_copy(&dbproc->bcpinfo->tablename, tblname))
202 : goto memory_error;
203 :
204 318 : dbproc->bcpinfo->direction = direction;
205 :
206 318 : dbproc->bcpinfo->xfer_init = false;
207 318 : dbproc->bcpinfo->bind_count = 0;
208 :
209 318 : if (TDS_FAILED(tds_bcp_init(dbproc->tds_socket, dbproc->bcpinfo))) {
210 : /* TODO return proper error */
211 : /* Attempt to use Bulk Copy with a non-existent Server table (might be why ...) */
212 0 : dbperror(dbproc, SYBEBCNT, 0);
213 0 : return FAIL;
214 : }
215 :
216 : /* Prepare default hostfile columns */
217 :
218 318 : if (hfile == NULL) {
219 38 : dbproc->hostfileinfo = NULL;
220 38 : return SUCCEED;
221 : }
222 :
223 280 : dbproc->hostfileinfo = tds_new0(BCP_HOSTFILEINFO, 1);
224 :
225 280 : if (dbproc->hostfileinfo == NULL)
226 : goto memory_error;
227 280 : dbproc->hostfileinfo->maxerrs = 10;
228 280 : dbproc->hostfileinfo->firstrow = 1;
229 280 : if ((dbproc->hostfileinfo->hostfile = strdup(hfile)) == NULL)
230 : goto memory_error;
231 :
232 280 : if (errfile != NULL)
233 280 : if ((dbproc->hostfileinfo->errorfile = strdup(errfile)) == NULL)
234 : goto memory_error;
235 :
236 280 : init_hostfile_columns(dbproc);
237 :
238 280 : return SUCCEED;
239 :
240 0 : memory_error:
241 0 : _bcp_free_storage(dbproc);
242 0 : dbperror(dbproc, SYBEMEM, ENOMEM);
243 0 : return FAIL;
244 : }
245 :
246 :
247 : /**
248 : * \ingroup dblib_bcp
249 : * \brief Set the length of a host variable to be written to a table.
250 : *
251 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
252 : * \param varlen size of the variable, in bytes, or
253 : * - \b 0 indicating NULL
254 : * - \b -1 indicating size is determined by the prefix or terminator.
255 : * (If both a prefix and a terminator are present, bcp is supposed to use the smaller of the
256 : * two. This feature might or might not actually work.)
257 : * \param table_column the number of the column in the table (starting with 1, not zero).
258 : *
259 : * \return SUCCEED or FAIL.
260 : * \sa bcp_bind(), bcp_colptr(), bcp_sendrow()
261 : */
262 : RETCODE
263 130 : bcp_collen(DBPROCESS * dbproc, DBINT varlen, int table_column)
264 : {
265 : TDSCOLUMN *bcpcol;
266 :
267 130 : tdsdump_log(TDS_DBG_FUNC, "bcp_collen(%p, %d, %d)\n", dbproc, varlen, table_column);
268 :
269 130 : CHECK_CONN(FAIL);
270 130 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL); /* not initialized */
271 130 : DBPERROR_RETURN(dbproc->bcpinfo->direction != DB_IN, SYBEBCPN) /* not inbound */
272 130 : DBPERROR_RETURN(dbproc->hostfileinfo != NULL, SYBEBCPI) /* cannot have data file */
273 130 : CHECK_PARAMETER(0 < table_column &&
274 : table_column <= dbproc->bcpinfo->bindinfo->num_cols, SYBECNOR, FAIL);
275 :
276 130 : bcpcol = dbproc->bcpinfo->bindinfo->columns[table_column - 1];
277 :
278 : /* Sybase library does not check for NULL here, only sending, so don't
279 : * check and send SYBEBCNN */
280 130 : bcpcol->column_bindlen = varlen;
281 :
282 130 : return SUCCEED;
283 : }
284 :
285 : /**
286 : * \ingroup dblib_bcp
287 : * \brief Indicate how many columns are to be found in the datafile.
288 : *
289 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
290 : * \param host_colcount count of columns in the datafile, irrespective of how many you intend to use.
291 : * \remarks This function describes the file as it is, not how it will be used.
292 : *
293 : * \return SUCCEED or FAIL. It's hard to see how it could fail.
294 : * \sa bcp_colfmt()
295 : */
296 : RETCODE
297 560 : bcp_columns(DBPROCESS * dbproc, int host_colcount)
298 : {
299 : int i;
300 :
301 560 : tdsdump_log(TDS_DBG_FUNC, "bcp_columns(%p, %d)\n", dbproc, host_colcount);
302 560 : CHECK_CONN(FAIL);
303 560 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
304 560 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBIVI, FAIL);
305 :
306 560 : if (host_colcount < 1) {
307 0 : dbperror(dbproc, SYBEBCFO, 0);
308 0 : return FAIL;
309 : }
310 :
311 560 : _bcp_free_columns(dbproc);
312 :
313 560 : dbproc->hostfileinfo->host_columns = tds_new0(BCP_HOSTCOLINFO *, host_colcount);
314 560 : if (dbproc->hostfileinfo->host_columns == NULL) {
315 0 : dbperror(dbproc, SYBEMEM, ENOMEM);
316 0 : return FAIL;
317 : }
318 :
319 560 : dbproc->hostfileinfo->host_colcount = host_colcount;
320 :
321 3592 : for (i = 0; i < host_colcount; i++) {
322 3032 : dbproc->hostfileinfo->host_columns[i] = tds_new0(BCP_HOSTCOLINFO, 1);
323 3032 : if (dbproc->hostfileinfo->host_columns[i] == NULL) {
324 0 : dbproc->hostfileinfo->host_colcount = i;
325 0 : _bcp_free_columns(dbproc);
326 0 : dbperror(dbproc, SYBEMEM, ENOMEM);
327 0 : return FAIL;
328 : }
329 : }
330 :
331 : return SUCCEED;
332 : }
333 :
334 : /**
335 : * \ingroup dblib_bcp
336 : * \brief Specify the format of a datafile prior to writing to a table.
337 : *
338 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
339 : * \param host_colnum datafile column number (starting with 1, not zero).
340 : * \param host_type dataype token describing the data type in \a host_colnum. E.g. SYBCHAR for character data.
341 : * \param host_prefixlen size of the prefix in the datafile column, if any. For delimited files: zero.
342 : * May be 0, 1, 2, or 4 bytes. The prefix will be read as an integer (not a character string) from the
343 : * data file, and will be interpreted the data size of that column, in bytes.
344 : * \param host_collen maximum size of datafile column, exclusive of any prefix/terminator. Just the data, ma'am.
345 : * Special values:
346 : * - \b 0 indicates NULL.
347 : * - \b -1 for fixed-length non-null datatypes
348 : * - \b -1 for variable-length datatypes (e.g. SYBCHAR) where the length is established
349 : * by a prefix/terminator.
350 : * \param host_term the sequence of characters that will serve as a column terminator (delimiter) in the datafile.
351 : * Often a tab character, but can be any string of any length. Zero indicates no terminator.
352 : * Special characters:
353 : * - \b '\\0' terminator is an ASCII NUL.
354 : * - \b '\\t' terminator is an ASCII TAB.
355 : * - \b '\\n' terminator is an ASCII NL.
356 : * \param host_termlen the length of \a host_term, in bytes.
357 : * \param table_colnum Nth column, starting at 1, in the table that maps to \a host_colnum.
358 : * If there is a column in the datafile that does not map to a table column, set \a table_colnum to zero.
359 : *
360 : *\remarks bcp_colfmt() is called once for each column in the datafile, as specified with bcp_columns().
361 : * In so doing, you describe to FreeTDS how to parse each line of your datafile, and where to send each field.
362 : *
363 : * When a prefix or terminator is used with variable-length data, \a host_collen may have one of three values:
364 : * - \b positive indicating the maximum number of bytes to be used
365 : * - \b 0 indicating NULL
366 : * - \b -1 indicating no maximum; all data, as described by the prefix/terminator will be used.
367 : * .
368 : * \return SUCCEED or FAIL.
369 : * \sa bcp_batch(), bcp_bind(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(),
370 : * bcp_control(), bcp_done(), bcp_exec(), bcp_init(), bcp_sendrow
371 : */
372 : RETCODE
373 3032 : bcp_colfmt(DBPROCESS * dbproc, int host_colnum, int host_type, int host_prefixlen, DBINT host_collen, const BYTE * host_term,
374 : int host_termlen, int table_colnum)
375 : {
376 : BCP_HOSTCOLINFO *hostcol;
377 3032 : BYTE *terminator = NULL;
378 :
379 3032 : tdsdump_log(TDS_DBG_FUNC, "bcp_colfmt(%p, %d, %d, %d, %d, %p, %d, %d)\n",
380 : dbproc, host_colnum, host_type, host_prefixlen, (int) host_collen, host_term, host_termlen, table_colnum);
381 3032 : CHECK_CONN(FAIL);
382 3032 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
383 3032 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBIVI, FAIL);
384 :
385 : /* Microsoft specifies a "file_termlen" of zero if there's no terminator */
386 3032 : if (dbproc->msdblib && host_termlen == 0)
387 : host_termlen = -1;
388 :
389 3032 : if (host_termlen < 0)
390 0 : host_termlen = -1;
391 :
392 3032 : if (dbproc->hostfileinfo->host_colcount == 0) {
393 0 : dbperror(dbproc, SYBEBCBC, 0);
394 0 : return FAIL;
395 : }
396 :
397 3032 : if (host_colnum < 1) {
398 0 : dbperror(dbproc, SYBEBCFO, 0);
399 0 : return FAIL;
400 : }
401 :
402 3032 : if (host_colnum > dbproc->hostfileinfo->host_colcount) {
403 0 : dbperror(dbproc, SYBECNOR, 0);
404 0 : return FAIL;
405 : }
406 :
407 3032 : if (host_prefixlen != 0 && host_prefixlen != 1 && host_prefixlen != 2 && host_prefixlen != 4 && host_prefixlen != -1) {
408 0 : dbperror(dbproc, SYBEBCPREF, 0);
409 0 : return FAIL;
410 : }
411 :
412 : /* if column is not copied you cannot specify destination type */
413 3032 : if (table_colnum <= 0 && host_type == 0) {
414 0 : dbperror(dbproc, SYBEBCPCTYP, 0);
415 0 : return FAIL;
416 : }
417 :
418 6064 : if (table_colnum > 0 && !is_tds_type_valid(host_type)) {
419 0 : dbperror(dbproc, SYBEUDTY, 0);
420 0 : return FAIL;
421 : }
422 :
423 3032 : if (host_type && host_prefixlen == 0 && host_collen == -1 && host_termlen == -1 && !is_fixed_type(host_type)) {
424 0 : dbperror(dbproc, SYBEVDPT, 0);
425 0 : return FAIL;
426 : }
427 :
428 3032 : if (host_collen < -1) {
429 0 : dbperror(dbproc, SYBEBCHLEN, 0);
430 0 : return FAIL;
431 : }
432 :
433 : /* No official error message. Fix and warn. */
434 3032 : if (is_fixed_type(host_type) && (host_collen != -1 && host_collen != 0)) {
435 644 : tdsdump_log(TDS_DBG_FUNC,
436 : "bcp_colfmt: changing host_collen to -1 from %d for fixed type %d.\n",
437 : host_collen, host_type);
438 : host_collen = -1;
439 : }
440 :
441 : /*
442 : * If there's a positive terminator length, we need a valid terminator pointer.
443 : * If the terminator length is 0 or -1, then there's no terminator.
444 : */
445 3032 : if (host_term == NULL && host_termlen > 0) {
446 0 : dbperror(dbproc, SYBEVDPT, 0); /* "all variable-length data must have either a length-prefix ..." */
447 0 : return FAIL;
448 : }
449 :
450 3032 : hostcol = dbproc->hostfileinfo->host_columns[host_colnum - 1];
451 :
452 : /* TODO add precision scale and join with bcp_colfmt_ps */
453 3032 : if (host_term && host_termlen > 0) {
454 1476 : if ((terminator = tds_new(BYTE, host_termlen)) == NULL) {
455 0 : dbperror(dbproc, SYBEMEM, errno);
456 0 : return FAIL;
457 : }
458 1476 : memcpy(terminator, host_term, host_termlen);
459 : }
460 3032 : hostcol->host_column = host_colnum;
461 3032 : hostcol->datatype = host_type ? (TDS_SERVER_TYPE) host_type : TDS_INVALID_TYPE;
462 3032 : hostcol->prefix_len = host_prefixlen;
463 3032 : hostcol->column_len = host_collen;
464 3032 : free(hostcol->terminator);
465 3032 : hostcol->terminator = terminator;
466 3032 : hostcol->term_len = host_termlen;
467 3032 : hostcol->tab_colnum = table_colnum;
468 :
469 3032 : return SUCCEED;
470 : }
471 :
472 : /**
473 : * \ingroup dblib_bcp
474 : * \brief Specify the format of a host file for bulk copy purposes,
475 : * with precision and scale support for numeric and decimal columns.
476 : *
477 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
478 : * \param host_colnum datafile column number (starting with 1, not zero).
479 : * \param host_type dataype token describing the data type in \a host_colnum. E.g. SYBCHAR for character data.
480 : * \param host_prefixlen size of the prefix in the datafile column, if any. For delimited files: zero.
481 : * May be 0, 1, 2, or 4 bytes. The prefix will be read as an integer (not a character string) from the
482 : * data file, and will be interpreted the data size of that column, in bytes.
483 : * \param host_collen maximum size of datafile column, exclusive of any prefix/terminator. Just the data, ma'am.
484 : * Special values:
485 : * - \b 0 indicates NULL.
486 : * - \b -1 for fixed-length non-null datatypes
487 : * - \b -1 for variable-length datatypes (e.g. SYBCHAR) where the length is established
488 : * by a prefix/terminator.
489 : * \param host_term the sequence of characters that will serve as a column terminator (delimiter) in the datafile.
490 : * Often a tab character, but can be any string of any length. Zero indicates no terminator.
491 : * Special characters:
492 : * - \b '\\0' terminator is an ASCII NUL.
493 : * - \b '\\t' terminator is an ASCII TAB.
494 : * - \b '\\n' terminator is an ASCII NL.
495 : * \param host_termlen the length of \a host_term, in bytes.
496 : * \param table_colnum Nth column, starting at 1, in the table that maps to \a host_colnum.
497 : * If there is a column in the datafile that does not map to a table column, set \a table_colnum to zero.
498 : * \param typeinfo something
499 : * \todo Not implemented.
500 : * \return SUCCEED or FAIL.
501 : * \sa bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_collen(), bcp_colptr(), bcp_columns(),
502 : * bcp_control(), bcp_done(), bcp_exec(), bcp_init(), bcp_sendrow
503 : */
504 : RETCODE
505 0 : bcp_colfmt_ps(DBPROCESS * dbproc, int host_colnum, int host_type,
506 : int host_prefixlen, DBINT host_collen, BYTE * host_term, int host_termlen, int table_colnum, DBTYPEINFO * typeinfo)
507 : {
508 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED: bcp_colfmt_ps(%p, %d, %d, %d, %d, %p, %d, %d, %p)\n",
509 : dbproc, host_colnum, host_type, host_prefixlen, (int) host_collen,
510 : host_term, host_termlen, table_colnum, typeinfo);
511 0 : CHECK_CONN(FAIL);
512 0 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
513 :
514 : /* dbperror(dbproc, , 0); Illegal precision specified */
515 :
516 : /* TODO see bcp_colfmt */
517 : return FAIL;
518 : }
519 :
520 :
521 : /**
522 : * \ingroup dblib_bcp
523 : * \brief Set BCP options for uploading a datafile
524 : *
525 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
526 : * \param field symbolic constant indicating the option to be set, one of:
527 : * - \b BCPMAXERRS Maximum errors tolerated before quitting. The default is 10.
528 : * - \b BCPFIRST The first row to read in the datafile. The default is 1.
529 : * - \b BCPLAST The last row to read in the datafile. The default is to copy all rows. A value of
530 : * -1 resets this field to its default?
531 : * - \b BCPBATCH The number of rows per batch. Default is 0, meaning a single batch.
532 : * \param value The value for \a field.
533 : *
534 : * \remarks These options control the behavior of bcp_exec().
535 : * When writing to a table from application host memory variables,
536 : * program logic controls error tolerance and batch size.
537 : *
538 : * \return SUCCEED or FAIL.
539 : * \sa bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_done(), bcp_exec(), bcp_options()
540 : */
541 : RETCODE
542 0 : bcp_control(DBPROCESS * dbproc, int field, DBINT value)
543 : {
544 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_control(%p, %d, %d)\n", dbproc, field, value);
545 0 : CHECK_CONN(FAIL);
546 0 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
547 :
548 0 : if (field == BCPKEEPIDENTITY) {
549 0 : dbproc->bcpinfo->identity_insert_on = (value != 0);
550 0 : return SUCCEED;
551 : }
552 :
553 0 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBIVI, FAIL);
554 :
555 0 : switch (field) {
556 :
557 0 : case BCPMAXERRS:
558 0 : if (value < 1)
559 0 : value = 10;
560 0 : dbproc->hostfileinfo->maxerrs = value;
561 0 : break;
562 0 : case BCPFIRST:
563 0 : if (value < 1)
564 0 : value = 1;
565 0 : dbproc->hostfileinfo->firstrow = value;
566 0 : break;
567 0 : case BCPLAST:
568 0 : dbproc->hostfileinfo->lastrow = value;
569 0 : break;
570 0 : case BCPBATCH:
571 0 : dbproc->hostfileinfo->batch = value;
572 0 : break;
573 :
574 0 : default:
575 0 : dbperror(dbproc, SYBEIFNB, 0);
576 0 : return FAIL;
577 : }
578 : return SUCCEED;
579 : }
580 :
581 : /*
582 : * \ingroup dblib_bcp
583 : * \brief Get BCP batch option
584 : *
585 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
586 : * \remarks This function is specific to FreeTDS.
587 : *
588 : * \return the value that was set by bcp_control.
589 : * \sa bcp_batch(), bcp_control()
590 : */
591 : int
592 0 : bcp_getbatchsize(DBPROCESS * dbproc)
593 : {
594 0 : CHECK_CONN(-1);
595 0 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBCPI, -1);
596 0 : return dbproc->hostfileinfo->batch;
597 : }
598 :
599 : /*
600 : * \ingroup dblib_bcp
601 : * \brief Get number of columns in the BCP data file
602 : *
603 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
604 : * \remarks This function is specific to FreeTDS.
605 : *
606 : * \return the value that was set by bcp_columns(). This represents the number
607 : * of columns of data in the saved data file. Usually the same as the number
608 : * of columns in the database table, but could be fewer if a Format File is
609 : * in use which only selects a subset of the table columns.
610 : *
611 : * \sa bcp_columns()
612 : */
613 : int
614 0 : bcp_gethostcolcount(DBPROCESS *dbproc)
615 : {
616 0 : CHECK_CONN(-1);
617 0 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBCPI, -1);
618 0 : return dbproc->hostfileinfo->host_colcount;
619 : }
620 :
621 : /**
622 : * \ingroup dblib_bcp
623 : * \brief Set "hints" for uploading a file. A FreeTDS-only function.
624 : *
625 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
626 : * \param option symbolic constant indicating the option to be set, one of:
627 : * - \b BCPLABELED Not implemented.
628 : * - \b BCPHINTS The hint to be passed when the bulk-copy begins.
629 : * \param value The string constant for \a option a/k/a the hint. One of:
630 : * - \b ORDER The data are ordered in accordance with the table's clustered index.
631 : * - \b ROWS_PER_BATCH The batch size
632 : * - \b KILOBYTES_PER_BATCH The approximate number of kilobytes to use for a batch size
633 : * - \b TABLOCK Lock the table
634 : * - \b CHECK_CONSTRAINTS Apply constraints
635 : * - \b FIRE_TRIGGERS Fire any INSERT triggers on the target table
636 : * \param valuelen The strlen of \a value.
637 : *
638 : * \return SUCCEED or FAIL.
639 : * \sa bcp_control(),
640 : * bcp_exec(),
641 : * \todo Simplify. Remove \a valuelen.
642 : */
643 : RETCODE
644 0 : bcp_options(DBPROCESS * dbproc, int option, BYTE * value, int valuelen)
645 : {
646 : int i;
647 : static const char *const hints[] = {
648 : "ORDER", "ROWS_PER_BATCH", "KILOBYTES_PER_BATCH", "TABLOCK", "CHECK_CONSTRAINTS",
649 : "FIRE_TRIGGERS", "KEEP_NULLS", NULL
650 : };
651 :
652 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_options(%p, %d, %p, %d)\n", dbproc, option, value, valuelen);
653 0 : CHECK_CONN(FAIL);
654 0 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
655 0 : CHECK_NULP(value, "bcp_options", 3, FAIL);
656 :
657 0 : switch (option) {
658 0 : case BCPLABELED:
659 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED bcp option: BCPLABELED\n");
660 : break;
661 0 : case BCPHINTS:
662 0 : if (!value || valuelen <= 0)
663 : break;
664 :
665 0 : for (i = 0; hints[i]; i++) { /* look up hint */
666 0 : if (strncasecmp((char *) value, hints[i], strlen(hints[i])) == 0) {
667 0 : if (!tds_dstr_copy(&dbproc->bcpinfo->hint, hints[i]))
668 : return FAIL;
669 0 : return SUCCEED;
670 : }
671 : }
672 0 : tdsdump_log(TDS_DBG_FUNC, "failed, no such hint\n");
673 : break;
674 0 : default:
675 0 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED bcp option: %u\n", option);
676 : break;
677 : }
678 0 : return FAIL;
679 : }
680 :
681 : /**
682 : * \ingroup dblib_bcp
683 : * \brief Override bcp_bind() by pointing to a different host variable.
684 : *
685 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
686 : * \param colptr The pointer, the address of your variable.
687 : * \param table_column The 1-based column ordinal in the table.
688 : * \remarks Use between calls to bcp_sendrow(). After calling bcp_colptr(),
689 : * subsequent calls to bcp_sendrow() will bind to the new address.
690 : * \return SUCCEED or FAIL.
691 : * \sa bcp_bind(), bcp_collen(), bcp_sendrow()
692 : */
693 : RETCODE
694 0 : bcp_colptr(DBPROCESS * dbproc, BYTE * colptr, int table_column)
695 : {
696 : TDSCOLUMN *curcol;
697 :
698 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_colptr(%p, %p, %d)\n", dbproc, colptr, table_column);
699 0 : CHECK_CONN(FAIL);
700 0 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
701 0 : CHECK_PARAMETER(dbproc->bcpinfo->bindinfo, SYBEBCPI, FAIL);
702 : /* colptr can be NULL */
703 :
704 0 : if (dbproc->bcpinfo->direction != DB_IN) {
705 0 : dbperror(dbproc, SYBEBCPN, 0);
706 0 : return FAIL;
707 : }
708 0 : if (table_column <= 0 || table_column > dbproc->bcpinfo->bindinfo->num_cols) {
709 0 : dbperror(dbproc, SYBEBCPN, 0);
710 0 : return FAIL;
711 : }
712 :
713 0 : curcol = dbproc->bcpinfo->bindinfo->columns[table_column - 1];
714 0 : curcol->column_varaddr = (TDS_CHAR *)colptr;
715 :
716 0 : return SUCCEED;
717 : }
718 :
719 :
720 : /**
721 : * \ingroup dblib_bcp
722 : * \brief See if BCP_SETL() was used to set the LOGINREC for BCP work.
723 : *
724 : * \param login Address of the LOGINREC variable to be passed to dbopen().
725 : *
726 : * \return TRUE or FALSE.
727 : * \sa BCP_SETL(), bcp_init(), dblogin(), dbopen()
728 : */
729 : DBBOOL
730 10 : bcp_getl(LOGINREC * login)
731 : {
732 10 : TDSLOGIN *tdsl = login->tds_login;
733 :
734 10 : tdsdump_log(TDS_DBG_FUNC, "bcp_getl(%p)\n", login);
735 :
736 10 : return (tdsl->bulk_copy);
737 : }
738 :
739 : /**
740 : * Convert column for output (usually to a file)
741 : * Conversion is slightly different from input as:
742 : * - date is formatted differently;
743 : * - you have to set properly numeric while on input the column metadata are
744 : * used;
745 : * - we need to make sure buffer is always at least a minimum bytes.
746 : */
747 : static int
748 1428 : _bcp_convert_out(DBPROCESS * dbproc, TDSCOLUMN *curcol, BCP_HOSTCOLINFO *hostcol, TDS_UCHAR **p_data, const char *bcpdatefmt)
749 : {
750 : BYTE *src;
751 : int srclen;
752 : int buflen;
753 1428 : int srctype = tds_get_conversion_type(curcol->column_type, curcol->column_size);
754 :
755 1428 : src = curcol->column_data;
756 1428 : if (is_blob_col(curcol))
757 102 : src = (BYTE *) ((TDSBLOB *) src)->textvalue;
758 :
759 1428 : srclen = curcol->column_cur_size;
760 :
761 : /*
762 : * if we are converting datetime to string, need to override any
763 : * date time formats already established
764 : */
765 1428 : if (is_datetime_type(srctype) && is_ascii_type(hostcol->datatype)) {
766 : TDSDATEREC when;
767 :
768 28 : tds_datecrack(srctype, src, &when);
769 28 : buflen = (int)tds_strftime((TDS_CHAR *)(*p_data), 256,
770 : bcpdatefmt, &when, 3);
771 1400 : } else if (srclen == 0 && is_variable_type(curcol->column_type)
772 46 : && is_ascii_type(hostcol->datatype)) {
773 : /*
774 : * An empty string is denoted in the output file by a single ASCII NUL
775 : * byte that we request by specifying a destination length of -1. (Not
776 : * to be confused with a database NULL, which is denoted in the output
777 : * file with an empty string!)
778 : */
779 46 : (*p_data)[0] = 0;
780 46 : buflen = 1;
781 1354 : } else if (is_numeric_type(hostcol->datatype)) {
782 0 : TDS_NUMERIC *num = (TDS_NUMERIC *) (*p_data);
783 0 : if (is_numeric_type(srctype)) {
784 0 : TDS_NUMERIC *nsrc = (TDS_NUMERIC *) src;
785 0 : num->precision = nsrc->precision;
786 0 : num->scale = nsrc->scale;
787 : } else {
788 0 : num->precision = 18;
789 0 : num->scale = 0;
790 : }
791 0 : buflen = tds_convert(dbproc->tds_socket->conn->tds_ctx, srctype, src, srclen, hostcol->datatype, (CONV_RESULT *) num);
792 0 : if (buflen > 0)
793 0 : buflen = tds_numeric_bytes_per_prec[num->precision] + 2;
794 1354 : } else if (!is_variable_type(hostcol->datatype)) {
795 10 : buflen = tds_convert(dbproc->tds_socket->conn->tds_ctx, srctype, src, srclen, hostcol->datatype, (CONV_RESULT *) (*p_data));
796 : } else {
797 : CONV_RESULT cr;
798 :
799 : /*
800 : * For null columns, the above work to determine the output buffer size is moot,
801 : * because bcpcol->data_size is zero, so dbconvert() won't write anything,
802 : * and returns zero.
803 : */
804 1344 : buflen = tds_convert(dbproc->tds_socket->conn->tds_ctx, srctype, src, srclen, hostcol->datatype, (CONV_RESULT *) &cr);
805 1344 : if (buflen < 0)
806 0 : return buflen;
807 :
808 1344 : if (buflen >= 256) {
809 30 : free(*p_data);
810 30 : *p_data = (TDS_UCHAR *) cr.c;
811 : } else {
812 1314 : memcpy(*p_data, cr.c, buflen);
813 1314 : free(cr.c);
814 : }
815 :
816 : /*
817 : * Special case: When outputting database varchar data
818 : * (either varchar or nullable char) conversion may have
819 : * trimmed trailing blanks such that nothing is left.
820 : * In this case we need to put a single blank to the output file.
821 : */
822 1344 : if (is_char_type(curcol->column_type) && srclen > 0 && buflen == 0) {
823 0 : strcpy ((char *) (*p_data), " ");
824 0 : buflen = 1;
825 : }
826 : }
827 : return buflen;
828 : }
829 :
830 : static int
831 0 : bcp_cache_prefix_len(BCP_HOSTCOLINFO *hostcol, const TDSCOLUMN *curcol)
832 : {
833 : int plen;
834 :
835 0 : if (is_blob_type(hostcol->datatype))
836 : plen = 4;
837 0 : else if (is_numeric_type(hostcol->datatype))
838 : plen = 1;
839 0 : else if (!is_fixed_type(hostcol->datatype))
840 : plen = 2;
841 0 : else if (curcol->column_nullable)
842 : plen = 1;
843 : else
844 0 : plen = 0;
845 : /* cache */
846 0 : return hostcol->prefix_len = plen;
847 : }
848 :
849 : static RETCODE
850 1568 : bcp_write_prefix(FILE *hostfile, BCP_HOSTCOLINFO *hostcol, TDSCOLUMN *curcol, int buflen)
851 : {
852 : union {
853 : TDS_TINYINT ti;
854 : TDS_SMALLINT si;
855 : TDS_INT li;
856 : } u;
857 : int plen;
858 :
859 : /* compute prefix len if needed */
860 1568 : if ((plen = hostcol->prefix_len) == -1)
861 0 : plen = bcp_cache_prefix_len(hostcol, curcol);
862 :
863 : /* output prefix to file */
864 1568 : switch (plen) {
865 : default:
866 : return SUCCEED;
867 10 : case 1:
868 10 : u.ti = buflen;
869 10 : break;
870 0 : case 2:
871 0 : u.si = buflen;
872 0 : break;
873 10 : case 4:
874 10 : u.li = buflen;
875 10 : break;
876 : }
877 20 : if (fwrite(&u, plen, 1, hostfile) == 1)
878 : return SUCCEED;
879 :
880 0 : return FAIL;
881 : }
882 :
883 : /**
884 : * \ingroup dblib_bcp_internal
885 : * \brief
886 : *
887 : *
888 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
889 : * \param rows_copied
890 : *
891 : * \return SUCCEED or FAIL.
892 : * \sa BCP_SETL(), bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(), bcp_done(), bcp_exec(), bcp_getl(), bcp_init(), bcp_moretext(), bcp_options(), bcp_readfmt(), bcp_sendrow()
893 : */
894 : static RETCODE
895 140 : _bcp_exec_out(DBPROCESS * dbproc, DBINT * rows_copied)
896 : {
897 140 : FILE *hostfile = NULL;
898 140 : TDS_UCHAR *data = NULL;
899 : int i;
900 :
901 : TDSSOCKET *tds;
902 : TDSRESULTINFO *resinfo;
903 140 : TDSCOLUMN *curcol = NULL;
904 : BCP_HOSTCOLINFO *hostcol;
905 : int buflen;
906 :
907 : TDS_INT result_type;
908 :
909 : int row_of_query;
910 : int rows_written;
911 : const char *bcpdatefmt;
912 : TDSRET tdsret;
913 :
914 140 : tdsdump_log(TDS_DBG_FUNC, "_bcp_exec_out(%p, %p)\n", dbproc, rows_copied);
915 140 : assert(dbproc);
916 140 : assert(rows_copied);
917 :
918 140 : tds = dbproc->tds_socket;
919 140 : assert(tds);
920 :
921 140 : bcpdatefmt = getenv("FREEBCP_DATEFMT");
922 140 : if (!bcpdatefmt)
923 140 : bcpdatefmt = "%Y-%m-%d %H:%M:%S.%z";
924 :
925 140 : if (dbproc->bcpinfo->direction == DB_QUERYOUT ) {
926 0 : if (TDS_FAILED(tds_submit_query(tds, tds_dstr_cstr(&dbproc->bcpinfo->tablename))))
927 : return FAIL;
928 : } else {
929 : /* TODO quote if needed */
930 280 : if (TDS_FAILED(tds_submit_queryf(tds, "select * from %s", tds_dstr_cstr(&dbproc->bcpinfo->tablename))))
931 : return FAIL;
932 : }
933 :
934 140 : tdsret = tds_process_tokens(tds, &result_type, NULL, TDS_TOKEN_RESULTS);
935 140 : if (TDS_FAILED(tdsret))
936 : return FAIL;
937 :
938 140 : if (!tds->res_info) {
939 : /* TODO flush/cancel to keep consistent state */
940 : return FAIL;
941 : }
942 :
943 140 : resinfo = tds->res_info;
944 :
945 140 : row_of_query = 0;
946 140 : rows_written = 0;
947 :
948 : /* allocate at least 256 bytes */
949 : /* allocate data for buffer conversion */
950 140 : data = tds_new(TDS_UCHAR, 256);
951 140 : if (!data) {
952 0 : dbperror(dbproc, SYBEMEM, errno);
953 : goto Cleanup;
954 : }
955 :
956 : /*
957 : * TODO above we allocate many buffer just to convert and store
958 : * to file.. avoid all that passages...
959 : */
960 :
961 140 : if (!(hostfile = fopen(dbproc->hostfileinfo->hostfile, "w"))) {
962 0 : dbperror(dbproc, SYBEBCUO, errno);
963 0 : goto Cleanup;
964 : }
965 :
966 : /* fetch a row of data from the server */
967 :
968 434 : while (tds_process_tokens(tds, &result_type, NULL, TDS_STOPAT_ROWFMT|TDS_RETURN_DONE|TDS_RETURN_ROW|TDS_RETURN_COMPUTE)
969 : == TDS_SUCCESS) {
970 :
971 434 : if (result_type != TDS_ROW_RESULT && result_type != TDS_COMPUTE_RESULT)
972 : break;
973 :
974 294 : row_of_query++;
975 :
976 : /* skip rows outside of the firstrow/lastrow range, if specified */
977 294 : if (dbproc->hostfileinfo->firstrow > row_of_query ||
978 : row_of_query > TDS_MAX(dbproc->hostfileinfo->lastrow, 0x7FFFFFFF))
979 0 : continue;
980 :
981 : /* Go through the hostfile columns, finding those that relate to database columns. */
982 1568 : for (i = 0; i < dbproc->hostfileinfo->host_colcount; i++) {
983 1568 : hostcol = dbproc->hostfileinfo->host_columns[i];
984 1568 : if (hostcol->tab_colnum < 1 || hostcol->tab_colnum > resinfo->num_cols)
985 0 : continue;
986 :
987 1568 : curcol = resinfo->columns[hostcol->tab_colnum - 1];
988 :
989 1568 : if (curcol->column_cur_size < 0) {
990 : buflen = 0;
991 : } else {
992 1428 : buflen = _bcp_convert_out(dbproc, curcol, hostcol, &data, bcpdatefmt);
993 : }
994 1428 : if (buflen < 0) {
995 0 : _dblib_convert_err(dbproc, buflen);
996 0 : goto Cleanup;
997 : }
998 :
999 : /* The prefix */
1000 1568 : if (bcp_write_prefix(hostfile, hostcol, curcol, buflen) != SUCCEED)
1001 : goto write_error;
1002 :
1003 : /* The data */
1004 1568 : if (hostcol->column_len != -1) {
1005 0 : buflen = TDS_MIN(buflen, hostcol->column_len);
1006 : }
1007 :
1008 1568 : if (buflen > 0) {
1009 1428 : if (fwrite(data, buflen, 1, hostfile) != 1)
1010 : goto write_error;
1011 : }
1012 :
1013 : /* The terminator */
1014 1568 : if (hostcol->terminator && hostcol->term_len > 0) {
1015 1548 : if (fwrite(hostcol->terminator, hostcol->term_len, 1, hostfile) != 1)
1016 : goto write_error;
1017 : }
1018 : }
1019 294 : rows_written++;
1020 : }
1021 140 : if (fclose(hostfile) != 0) {
1022 0 : dbperror(dbproc, SYBEBCUC, errno);
1023 0 : goto Cleanup;
1024 : }
1025 140 : hostfile = NULL;
1026 :
1027 140 : if (row_of_query + 1 < dbproc->hostfileinfo->firstrow) {
1028 : /*
1029 : * The table which bulk-copy is attempting to
1030 : * copy to a host-file is shorter than the
1031 : * number of rows which bulk-copy was instructed to skip.
1032 : */
1033 : /* TODO reset TDSSOCKET state */
1034 0 : dbperror(dbproc, SYBETTS, 0);
1035 : goto Cleanup;
1036 : }
1037 :
1038 140 : *rows_copied = rows_written;
1039 140 : free(data);
1040 140 : return SUCCEED;
1041 :
1042 0 : write_error:
1043 0 : dbperror(dbproc, SYBEBCWE, errno);
1044 :
1045 0 : Cleanup:
1046 0 : if (hostfile)
1047 0 : fclose(hostfile);
1048 0 : free(data);
1049 0 : return FAIL;
1050 : }
1051 :
1052 : static STATUS
1053 140 : _bcp_check_eof(DBPROCESS * dbproc, FILE *file, int icol)
1054 : {
1055 140 : int errnum = errno;
1056 :
1057 140 : tdsdump_log(TDS_DBG_FUNC, "_bcp_check_eof(%p, %p, %d)\n", dbproc, file, icol);
1058 140 : assert(dbproc);
1059 140 : assert(file);
1060 :
1061 140 : if (feof(file)) {
1062 140 : if (icol == 0) {
1063 140 : tdsdump_log(TDS_DBG_FUNC, "Normal end-of-file reached while loading bcp data file.\n");
1064 : return NO_MORE_ROWS;
1065 : }
1066 0 : dbperror(dbproc, SYBEBEOF, errnum);
1067 0 : return FAIL;
1068 : }
1069 0 : dbperror(dbproc, SYBEBCRE, errnum);
1070 0 : return FAIL;
1071 : }
1072 :
1073 : /**
1074 : * Convert column for input to a table
1075 : */
1076 : static TDSRET
1077 4238 : _bcp_convert_in(DBPROCESS *dbproc, TDS_SERVER_TYPE srctype, const TDS_CHAR *src, TDS_UINT srclen,
1078 : TDS_SERVER_TYPE desttype, BCPCOLDATA *coldata)
1079 : {
1080 4238 : bool variable = true;
1081 : CONV_RESULT cr, *p_cr;
1082 : TDS_INT len;
1083 :
1084 4238 : coldata->is_null = false;
1085 :
1086 4238 : if (!is_variable_type(desttype)) {
1087 3040 : variable = false;
1088 3040 : p_cr = (CONV_RESULT *) coldata->data;
1089 : } else {
1090 : p_cr = &cr;
1091 : }
1092 :
1093 4238 : len = tds_convert(dbproc->tds_socket->conn->tds_ctx, srctype, src, srclen, desttype, p_cr);
1094 4238 : if (len < 0) {
1095 0 : _dblib_convert_err(dbproc, len);
1096 0 : return TDS_FAIL;
1097 : }
1098 :
1099 4238 : coldata->datalen = len;
1100 4238 : if (variable) {
1101 1198 : free(coldata->data);
1102 1198 : coldata->data = (TDS_UCHAR *) cr.c;
1103 : }
1104 : return TDS_SUCCESS;
1105 : }
1106 :
1107 : static void
1108 4238 : rtrim_bcpcol(TDSCOLUMN *bcpcol)
1109 : {
1110 : /* trim trailing blanks from character data */
1111 4238 : if (is_ascii_type(bcpcol->on_server.column_type)) {
1112 : /* A single NUL byte indicates an empty string. */
1113 1046 : if (bcpcol->bcp_column_data->datalen == 1
1114 200 : && bcpcol->bcp_column_data->data[0] == '\0') {
1115 24 : bcpcol->bcp_column_data->datalen = 0;
1116 24 : return;
1117 : }
1118 2044 : bcpcol->bcp_column_data->datalen = rtrim((char *) bcpcol->bcp_column_data->data,
1119 : bcpcol->bcp_column_data->datalen);
1120 1022 : return;
1121 : }
1122 :
1123 : /* unicode part */
1124 3192 : if (is_unicode_type(bcpcol->on_server.column_type)) {
1125 : uint16_t *data, space;
1126 :
1127 68 : if (!bcpcol->char_conv || bcpcol->char_conv->to.charset.min_bytes_per_char != 2)
1128 6 : return;
1129 :
1130 68 : data = (uint16_t *) bcpcol->bcp_column_data->data;
1131 : /* A single NUL byte indicates an empty string. */
1132 68 : if (bcpcol->bcp_column_data->datalen == 2 && data[0] == 0) {
1133 6 : bcpcol->bcp_column_data->datalen = 0;
1134 6 : return;
1135 : }
1136 62 : switch (bcpcol->char_conv->to.charset.canonic) {
1137 0 : case TDS_CHARSET_UTF_16BE:
1138 : case TDS_CHARSET_UCS_2BE:
1139 0 : TDS_PUT_A2BE(&space, 0x20);
1140 0 : break;
1141 62 : case TDS_CHARSET_UTF_16LE:
1142 : case TDS_CHARSET_UCS_2LE:
1143 62 : TDS_PUT_A2LE(&space, 0x20);
1144 62 : break;
1145 : default:
1146 : return;
1147 : }
1148 124 : bcpcol->bcp_column_data->datalen = rtrim_u16(data, bcpcol->bcp_column_data->datalen, space);
1149 : }
1150 : }
1151 :
1152 : /**
1153 : * \ingroup dblib_bcp_internal
1154 : * \brief
1155 : *
1156 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1157 : * \param hostfile
1158 : * \param row_error
1159 : *
1160 : * \return MORE_ROWS, NO_MORE_ROWS, or FAIL.
1161 : * \sa BCP_SETL(), bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(), bcp_done(), bcp_exec(), bcp_getl(), bcp_init(), bcp_moretext(), bcp_options(), bcp_readfmt(), bcp_sendrow()
1162 : */
1163 : static STATUS
1164 434 : _bcp_read_hostfile(DBPROCESS * dbproc, FILE * hostfile, bool *row_error, bool skip)
1165 : {
1166 : int i;
1167 :
1168 434 : tdsdump_log(TDS_DBG_FUNC, "_bcp_read_hostfile(%p, %p, %p, %d)\n", dbproc, hostfile, row_error, skip);
1169 434 : assert(dbproc);
1170 434 : assert(hostfile);
1171 434 : assert(row_error);
1172 :
1173 : /* for each host file column defined by calls to bcp_colfmt */
1174 :
1175 3570 : for (i = 0; i < dbproc->hostfileinfo->host_colcount; i++) {
1176 1708 : TDSCOLUMN *bcpcol = NULL;
1177 : BCP_HOSTCOLINFO *hostcol;
1178 : TDS_CHAR *coldata;
1179 1708 : int collen = 0;
1180 1708 : bool data_is_null = false;
1181 : offset_type col_start;
1182 :
1183 1708 : tdsdump_log(TDS_DBG_FUNC, "parsing host column %d\n", i + 1);
1184 1708 : hostcol = dbproc->hostfileinfo->host_columns[i];
1185 :
1186 1708 : hostcol->column_error = 0;
1187 :
1188 : /*
1189 : * If this host file column contains table data,
1190 : * find the right element in the table/column list.
1191 : */
1192 1708 : if (hostcol->tab_colnum > 0) {
1193 1708 : if (hostcol->tab_colnum > dbproc->bcpinfo->bindinfo->num_cols) {
1194 0 : tdsdump_log(TDS_DBG_FUNC, "error: file wider than table: %d/%d\n",
1195 : i+1, dbproc->bcpinfo->bindinfo->num_cols);
1196 0 : dbperror(dbproc, SYBEBEOF, 0);
1197 0 : return FAIL;
1198 : }
1199 1708 : tdsdump_log(TDS_DBG_FUNC, "host column %d uses bcpcol %d (%p)\n",
1200 : i+1, hostcol->tab_colnum, bcpcol);
1201 1708 : bcpcol = dbproc->bcpinfo->bindinfo->columns[hostcol->tab_colnum - 1];
1202 1708 : assert(bcpcol != NULL);
1203 : }
1204 :
1205 : /* detect prefix len */
1206 1708 : if (bcpcol && hostcol->prefix_len == -1)
1207 0 : bcp_cache_prefix_len(hostcol, bcpcol);
1208 :
1209 : /* a prefix length, if extant, specifies how many bytes to read */
1210 1708 : if (hostcol->prefix_len > 0) {
1211 : union {
1212 : TDS_TINYINT ti;
1213 : TDS_SMALLINT si;
1214 : TDS_INT li;
1215 : } u;
1216 :
1217 30 : switch (hostcol->prefix_len) {
1218 20 : case 1:
1219 20 : if (fread(&u.ti, 1, 1, hostfile) != 1)
1220 20 : return _bcp_check_eof(dbproc, hostfile, i);
1221 10 : collen = u.ti ? u.ti : -1;
1222 10 : break;
1223 0 : case 2:
1224 0 : if (fread(&u.si, 2, 1, hostfile) != 1)
1225 0 : return _bcp_check_eof(dbproc, hostfile, i);
1226 0 : collen = u.si;
1227 0 : break;
1228 10 : case 4:
1229 10 : if (fread(&u.li, 4, 1, hostfile) != 1)
1230 0 : return _bcp_check_eof(dbproc, hostfile, i);
1231 10 : collen = u.li;
1232 10 : break;
1233 0 : default:
1234 : /* FIXME return error, remember that prefix_len can be 3 */
1235 0 : assert(hostcol->prefix_len <= 4);
1236 : break;
1237 : }
1238 :
1239 : /* TODO test all NULL types */
1240 : /* TODO for < -1 error */
1241 20 : if (collen <= -1) {
1242 : data_is_null = true;
1243 : collen = 0;
1244 : }
1245 : }
1246 :
1247 : /* if (Max) column length specified take that into consideration. (Meaning what, exactly?) */
1248 :
1249 1698 : if (!data_is_null && hostcol->column_len >= 0) {
1250 0 : if (hostcol->column_len == 0)
1251 : data_is_null = true;
1252 0 : else if (collen)
1253 0 : collen = TDS_MIN(hostcol->column_len, collen);
1254 : else
1255 : collen = hostcol->column_len;
1256 : }
1257 :
1258 1698 : tdsdump_log(TDS_DBG_FUNC, "prefix_len = %d collen = %d \n", hostcol->prefix_len, collen);
1259 :
1260 : /* Fixed Length data - this overrides anything else specified */
1261 :
1262 1698 : if (is_fixed_type(hostcol->datatype))
1263 10 : collen = tds_get_size_by_type(hostcol->datatype);
1264 :
1265 1698 : col_start = ftello(hostfile);
1266 :
1267 : /*
1268 : * The data file either contains prefixes stating the length, or is delimited.
1269 : * If delimited, we "measure" the field by looking for the terminator, then read it,
1270 : * and set collen to the field's post-iconv size.
1271 : */
1272 1698 : if (hostcol->term_len > 0) { /* delimited data file */
1273 : size_t col_bytes;
1274 : TDSRET conv_res;
1275 :
1276 : /*
1277 : * Read and convert the data
1278 : */
1279 1678 : coldata = NULL;
1280 3356 : conv_res = tds_bcp_fread(dbproc->tds_socket, bcpcol ? bcpcol->char_conv : NULL, hostfile,
1281 1678 : (const char *) hostcol->terminator, hostcol->term_len, &coldata, &col_bytes);
1282 :
1283 1678 : if (TDS_FAILED(conv_res)) {
1284 0 : tdsdump_log(TDS_DBG_FUNC, "col %d: error converting %ld bytes!\n",
1285 : (i+1), (long) collen);
1286 0 : *row_error = true;
1287 0 : free(coldata);
1288 0 : dbperror(dbproc, SYBEBCOR, 0);
1289 0 : return FAIL;
1290 : }
1291 :
1292 1678 : if (conv_res == TDS_NO_MORE_RESULTS) {
1293 130 : free(coldata);
1294 130 : return _bcp_check_eof(dbproc, hostfile, i);
1295 : }
1296 :
1297 1548 : if (col_bytes > 0x7fffffffl) {
1298 0 : free(coldata);
1299 0 : *row_error = true;
1300 0 : tdsdump_log(TDS_DBG_FUNC, "data from file is too large!\n");
1301 0 : dbperror(dbproc, SYBEBCOR, 0);
1302 0 : return FAIL;
1303 : }
1304 :
1305 1548 : collen = (int)col_bytes;
1306 1548 : if (collen == 0)
1307 140 : data_is_null = true;
1308 :
1309 : /*
1310 : * TODO:
1311 : * Dates are a problem. In theory, we should be able to read non-English dates, which
1312 : * would contain non-ASCII characters. One might suppose we should convert date
1313 : * strings to ISO-8859-1 (or another canonical form) here, because tds_convert() can't be
1314 : * expected to deal with encodings. But instead date strings are read verbatim and
1315 : * passed to tds_convert() without even waving to iconv(). For English dates, this works,
1316 : * because English dates expressed as UTF-8 strings are indistinguishable from the ASCII.
1317 : */
1318 : } else { /* unterminated field */
1319 :
1320 20 : coldata = tds_new(TDS_CHAR, 1 + collen);
1321 20 : if (coldata == NULL) {
1322 0 : *row_error = true;
1323 0 : dbperror(dbproc, SYBEMEM, errno);
1324 0 : return FAIL;
1325 : }
1326 :
1327 20 : coldata[collen] = 0;
1328 20 : if (collen) {
1329 : /*
1330 : * Read and convert the data
1331 : * TODO: Call tds_bcp_fread() instead of fread(3).
1332 : * The columns should each have their iconv cd set, and noncharacter data
1333 : * should have -1 as the iconv cd, causing tds_bcp_fread() to not attempt
1334 : * any conversion. We do not need a datatype switch here to decide what to do.
1335 : * As of 0.62, this *should* actually work. All that remains is to change the
1336 : * call and test it.
1337 : */
1338 20 : tdsdump_log(TDS_DBG_FUNC, "Reading %d bytes from hostfile.\n", collen);
1339 20 : if (fread(coldata, collen, 1, hostfile) != 1) {
1340 0 : free(coldata);
1341 0 : return _bcp_check_eof(dbproc, hostfile, i);
1342 : }
1343 : }
1344 : }
1345 :
1346 : /*
1347 : * At this point, however the field was read, however big it was, its address is coldata and its size is collen.
1348 : */
1349 1568 : tdsdump_log(TDS_DBG_FUNC, "Data read from hostfile: collen is now %d, data_is_null is %d\n", collen, data_is_null);
1350 1568 : if (!skip && bcpcol) {
1351 1568 : if (data_is_null) {
1352 140 : bcpcol->bcp_column_data->is_null = true;
1353 140 : bcpcol->bcp_column_data->datalen = 0;
1354 : } else {
1355 : TDSRET rc;
1356 : TDS_SERVER_TYPE desttype;
1357 :
1358 1428 : desttype = tds_get_conversion_type(bcpcol->column_type, bcpcol->column_size);
1359 :
1360 1428 : rc = _bcp_convert_in(dbproc, hostcol->datatype, (const TDS_CHAR*) coldata, collen,
1361 : desttype, bcpcol->bcp_column_data);
1362 1428 : if (TDS_FAILED(rc)) {
1363 0 : hostcol->column_error = HOST_COL_CONV_ERROR;
1364 0 : *row_error = true;
1365 0 : tdsdump_log(TDS_DBG_FUNC,
1366 : "_bcp_read_hostfile failed to convert %d bytes at offset 0x%" PRIx64 " in the data file.\n",
1367 : collen, (TDS_INT8) col_start);
1368 : }
1369 :
1370 1428 : rtrim_bcpcol(bcpcol);
1371 : }
1372 : #if USING_SYBEBCNN
1373 : if (!hostcol->column_error) {
1374 : if (bcpcol->bcp_column_data->datalen <= 0) { /* Are we trying to insert a NULL ? */
1375 : if (!bcpcol->column_nullable) {
1376 : /* too bad if the column is not nullable */
1377 : hostcol->column_error = HOST_COL_NULL_ERROR;
1378 : *row_error = true;
1379 : dbperror(dbproc, SYBEBCNN, 0);
1380 : }
1381 : }
1382 : }
1383 : #endif
1384 : }
1385 1568 : free(coldata);
1386 : }
1387 : return MORE_ROWS;
1388 : }
1389 :
1390 : /**
1391 : * \ingroup dblib_bcp
1392 : * \brief Write data in host variables to the table.
1393 : *
1394 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1395 : *
1396 : * \remarks Call bcp_bind() first to describe the variables to be used.
1397 : * Use bcp_batch() to commit sets of rows.
1398 : * After sending the last row call bcp_done().
1399 : * \return SUCCEED or FAIL.
1400 : * \sa bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_collen(), bcp_colptr(), bcp_columns(),
1401 : * bcp_control(), bcp_done(), bcp_exec(), bcp_init(), bcp_moretext(), bcp_options()
1402 : */
1403 : RETCODE
1404 180 : bcp_sendrow(DBPROCESS * dbproc)
1405 : {
1406 : TDSSOCKET *tds;
1407 :
1408 180 : tdsdump_log(TDS_DBG_FUNC, "bcp_sendrow(%p)\n", dbproc);
1409 180 : CHECK_CONN(FAIL);
1410 180 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
1411 :
1412 180 : tds = dbproc->tds_socket;
1413 :
1414 180 : if (dbproc->bcpinfo->direction != DB_IN) {
1415 0 : dbperror(dbproc, SYBEBCPN, 0);
1416 0 : return FAIL;
1417 : }
1418 :
1419 180 : if (dbproc->hostfileinfo != NULL) {
1420 0 : dbperror(dbproc, SYBEBCPB, 0);
1421 0 : return FAIL;
1422 : }
1423 :
1424 : /*
1425 : * The first time sendrow is called after bcp_init,
1426 : * there is a certain amount of initialisation to be done.
1427 : */
1428 180 : if (!dbproc->bcpinfo->xfer_init) {
1429 :
1430 : /* The start_copy function retrieves details of the table's columns */
1431 28 : if (TDS_FAILED(tds_bcp_start_copy_in(tds, dbproc->bcpinfo))) {
1432 0 : dbperror(dbproc, SYBEBULKINSERT, 0);
1433 0 : return FAIL;
1434 : }
1435 :
1436 28 : dbproc->bcpinfo->xfer_init = true;
1437 :
1438 : }
1439 :
1440 180 : dbproc->bcpinfo->parent = dbproc;
1441 180 : return TDS_FAILED(tds_bcp_send_record(dbproc->tds_socket, dbproc->bcpinfo,
1442 180 : _bcp_get_col_data, _bcp_null_error, 0)) ? FAIL : SUCCEED;
1443 : }
1444 :
1445 :
1446 : /**
1447 : * \ingroup dblib_bcp_internal
1448 : * \brief
1449 : *
1450 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1451 : * \param rows_copied
1452 : *
1453 : * \return SUCCEED or FAIL.
1454 : * \sa BCP_SETL(), bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(), bcp_done(), bcp_exec(), bcp_getl(), bcp_init(), bcp_moretext(), bcp_options(), bcp_readfmt(), bcp_sendrow()
1455 : */
1456 : static RETCODE
1457 140 : _bcp_exec_in(DBPROCESS * dbproc, DBINT * rows_copied)
1458 : {
1459 140 : FILE *hostfile, *errfile = NULL;
1460 140 : TDSSOCKET *tds = dbproc->tds_socket;
1461 : BCP_HOSTCOLINFO *hostcol;
1462 : STATUS ret;
1463 :
1464 : int i, row_of_hostfile, rows_written_so_far;
1465 : int row_error_count;
1466 : bool row_error;
1467 : offset_type row_start, row_end;
1468 : offset_type error_row_size;
1469 140 : const size_t chunk_size = 0x20000u;
1470 :
1471 140 : tdsdump_log(TDS_DBG_FUNC, "_bcp_exec_in(%p, %p)\n", dbproc, rows_copied);
1472 : assert(dbproc);
1473 140 : assert(rows_copied);
1474 :
1475 140 : *rows_copied = 0;
1476 :
1477 140 : if (!(hostfile = fopen(dbproc->hostfileinfo->hostfile, "r"))) {
1478 0 : dbperror(dbproc, SYBEBCUO, 0);
1479 0 : return FAIL;
1480 : }
1481 :
1482 140 : if (TDS_FAILED(tds_bcp_start_copy_in(tds, dbproc->bcpinfo))) {
1483 0 : fclose(hostfile);
1484 0 : return FAIL;
1485 : }
1486 :
1487 140 : row_of_hostfile = 0;
1488 140 : rows_written_so_far = 0;
1489 :
1490 140 : row_error_count = 0;
1491 140 : dbproc->bcpinfo->parent = dbproc;
1492 :
1493 : for (;;) {
1494 : bool skip;
1495 :
1496 434 : row_start = ftello(hostfile);
1497 434 : row_error = false;
1498 :
1499 434 : row_of_hostfile++;
1500 :
1501 : if (row_of_hostfile > TDS_MAX(dbproc->hostfileinfo->lastrow, 0x7FFFFFFF))
1502 : break;
1503 :
1504 434 : skip = dbproc->hostfileinfo->firstrow > row_of_hostfile;
1505 434 : ret = _bcp_read_hostfile(dbproc, hostfile, &row_error, skip);
1506 434 : if (ret != MORE_ROWS)
1507 : break;
1508 :
1509 294 : if (row_error) {
1510 : int count;
1511 :
1512 0 : if (errfile == NULL && dbproc->hostfileinfo->errorfile) {
1513 0 : if (!(errfile = fopen(dbproc->hostfileinfo->errorfile, "w"))) {
1514 0 : fclose(hostfile);
1515 0 : dbperror(dbproc, SYBEBUOE, 0);
1516 0 : return FAIL;
1517 : }
1518 : }
1519 :
1520 0 : if (errfile != NULL) {
1521 : char *row_in_error = NULL;
1522 :
1523 0 : for (i = 0; i < dbproc->hostfileinfo->host_colcount; i++) {
1524 0 : hostcol = dbproc->hostfileinfo->host_columns[i];
1525 0 : if (hostcol->column_error == HOST_COL_CONV_ERROR) {
1526 0 : count = fprintf(errfile,
1527 : "#@ data conversion error on host data file Row %d Column %d\n",
1528 : row_of_hostfile, i + 1);
1529 0 : if( count < 0 ) {
1530 0 : dbperror(dbproc, SYBEBWEF, errno);
1531 : }
1532 0 : } else if (hostcol->column_error == HOST_COL_NULL_ERROR) {
1533 0 : count = fprintf(errfile, "#@ Attempt to bulk-copy a NULL value into Server column"
1534 : " which does not accept NULL values. Row %d, Column %d\n",
1535 : row_of_hostfile, i + 1);
1536 0 : if( count < 0 ) {
1537 0 : dbperror(dbproc, SYBEBWEF, errno);
1538 : }
1539 :
1540 : }
1541 : }
1542 :
1543 0 : row_end = ftello(hostfile);
1544 :
1545 : /* error data can be very long so split in chunks */
1546 0 : error_row_size = row_end - row_start;
1547 0 : fseeko(hostfile, row_start, SEEK_SET);
1548 :
1549 0 : while (error_row_size > 0) {
1550 0 : size_t chunk = TDS_MIN((size_t) error_row_size, chunk_size);
1551 :
1552 0 : if (!row_in_error) {
1553 0 : if ((row_in_error = tds_new(char, chunk)) == NULL) {
1554 0 : dbperror(dbproc, SYBEMEM, errno);
1555 : }
1556 : }
1557 :
1558 0 : if (fread(row_in_error, chunk, 1, hostfile) != 1) {
1559 0 : tdsdump_log(TDS_DBG_ERROR, "BILL fread failed after fseek\n");
1560 : }
1561 0 : count = (int)fwrite(row_in_error, chunk, 1, errfile);
1562 0 : if( (size_t)count < chunk ) {
1563 0 : dbperror(dbproc, SYBEBWEF, errno);
1564 : }
1565 0 : error_row_size -= chunk;
1566 : }
1567 0 : free(row_in_error);
1568 :
1569 0 : fseeko(hostfile, row_end, SEEK_SET);
1570 0 : count = fprintf(errfile, "\n");
1571 0 : if( count < 0 ) {
1572 0 : dbperror(dbproc, SYBEBWEF, errno);
1573 : }
1574 : }
1575 0 : row_error_count++;
1576 0 : if (row_error_count >= dbproc->hostfileinfo->maxerrs)
1577 : break;
1578 0 : continue;
1579 : }
1580 :
1581 294 : if (skip)
1582 0 : continue;
1583 :
1584 294 : if (TDS_SUCCEED(tds_bcp_send_record(dbproc->tds_socket, dbproc->bcpinfo,
1585 : _bcp_no_get_col_data, _bcp_null_error, 0))) {
1586 :
1587 294 : rows_written_so_far++;
1588 :
1589 294 : if (dbproc->hostfileinfo->batch > 0 && rows_written_so_far == dbproc->hostfileinfo->batch) {
1590 0 : if (TDS_FAILED(tds_bcp_done(tds, &rows_written_so_far))) {
1591 0 : if (errfile)
1592 0 : fclose(errfile);
1593 0 : fclose(hostfile);
1594 0 : return FAIL;
1595 : }
1596 :
1597 0 : *rows_copied += rows_written_so_far;
1598 0 : rows_written_so_far = 0;
1599 :
1600 0 : dbperror(dbproc, SYBEBBCI, 0); /* batch copied to server */
1601 :
1602 0 : tds_bcp_start(tds, dbproc->bcpinfo);
1603 : }
1604 : }
1605 : }
1606 :
1607 140 : if (row_error_count == 0 && row_of_hostfile < dbproc->hostfileinfo->firstrow) {
1608 : /* "The BCP hostfile '%1!' contains only %2! rows. */
1609 0 : dbperror(dbproc, SYBEBCSA, 0, dbproc->hostfileinfo->hostfile, row_of_hostfile);
1610 : }
1611 :
1612 140 : if (errfile && 0 != fclose(errfile) ) {
1613 0 : dbperror(dbproc, SYBEBUCE, 0);
1614 : }
1615 :
1616 140 : if (fclose(hostfile) != 0) {
1617 0 : dbperror(dbproc, SYBEBCUC, 0);
1618 0 : ret = FAIL;
1619 : }
1620 :
1621 140 : tds_bcp_done(tds, &rows_written_so_far);
1622 140 : *rows_copied += rows_written_so_far;
1623 :
1624 140 : return ret == NO_MORE_ROWS? SUCCEED : FAIL; /* (ret is returned from _bcp_read_hostfile) */
1625 : }
1626 :
1627 : /**
1628 : * \ingroup dblib_bcp
1629 : * \brief Write a datafile to a table.
1630 : *
1631 : *
1632 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1633 : * \param rows_copied bcp_exec will write the count of rows successfully written to this address.
1634 : * If \a rows_copied is NULL, it will be ignored by db-lib.
1635 : *
1636 : * \return SUCCEED or FAIL.
1637 : * \sa bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_collen(), bcp_colptr(), bcp_columns(),
1638 : * bcp_control(), bcp_done(), bcp_init(), bcp_sendrow()
1639 : */
1640 : RETCODE
1641 280 : bcp_exec(DBPROCESS * dbproc, DBINT *rows_copied)
1642 : {
1643 : DBINT dummy_copied;
1644 280 : RETCODE ret = FAIL;
1645 :
1646 280 : tdsdump_log(TDS_DBG_FUNC, "bcp_exec(%p, %p)\n", dbproc, rows_copied);
1647 280 : CHECK_CONN(FAIL);
1648 280 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
1649 280 : CHECK_PARAMETER(dbproc->hostfileinfo, SYBEBCVH, FAIL);
1650 :
1651 280 : if (rows_copied == NULL) /* NULL means we should ignore it */
1652 0 : rows_copied = &dummy_copied;
1653 :
1654 280 : if (dbproc->bcpinfo->direction == DB_OUT || dbproc->bcpinfo->direction == DB_QUERYOUT) {
1655 140 : ret = _bcp_exec_out(dbproc, rows_copied);
1656 140 : } else if (dbproc->bcpinfo->direction == DB_IN) {
1657 140 : ret = _bcp_exec_in(dbproc, rows_copied);
1658 : }
1659 280 : _bcp_free_storage(dbproc);
1660 :
1661 280 : return ret;
1662 : }
1663 :
1664 : /**
1665 : * \ingroup dblib_bcp_internal
1666 : * \brief
1667 : *
1668 : * \param buffer
1669 : * \param size
1670 : * \param f
1671 : *
1672 : * \return SUCCEED or FAIL.
1673 : * \sa BCP_SETL(), bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(), bcp_done(), bcp_exec(), bcp_getl(), bcp_init(), bcp_moretext(), bcp_options(), bcp_readfmt(), bcp_sendrow()
1674 : */
1675 : static char *
1676 0 : _bcp_fgets(char *buffer, int size, FILE *f)
1677 : {
1678 0 : char *p = fgets(buffer, size, f);
1679 0 : if (p == NULL)
1680 : return p;
1681 :
1682 : /* discard newline */
1683 0 : p = strchr(buffer, 0) - 1;
1684 0 : if (p >= buffer && *p == '\n')
1685 0 : *p = 0;
1686 : return buffer;
1687 : }
1688 :
1689 : /**
1690 : * \ingroup dblib_bcp
1691 : * \brief Read a format definition file.
1692 : *
1693 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1694 : * \param filename Name that will be passed to fopen(3).
1695 : *
1696 : * \remarks Reads a format file and calls bcp_columns() and bcp_colfmt() as needed.
1697 : *
1698 : * \return SUCCEED or FAIL.
1699 : * \sa bcp_colfmt(), bcp_colfmt_ps(), bcp_columns(), bcp_writefmt()
1700 : */
1701 : RETCODE
1702 0 : bcp_readfmt(DBPROCESS * dbproc, const char filename[])
1703 : {
1704 : BCP_HOSTCOLINFO hostcol[1];
1705 : FILE *ffile;
1706 : char buffer[1024];
1707 0 : float lf_version = 0.0;
1708 0 : int li_numcols = 0;
1709 0 : int colinfo_count = 0;
1710 :
1711 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_readfmt(%p, %s)\n", dbproc, filename? filename:"NULL");
1712 0 : CHECK_CONN(FAIL);
1713 0 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
1714 0 : CHECK_NULP(filename, "bcp_readfmt", 2, FAIL);
1715 :
1716 0 : memset(hostcol, 0, sizeof(hostcol));
1717 :
1718 0 : if ((ffile = fopen(filename, "r")) == NULL) {
1719 0 : dbperror(dbproc, SYBEBUOF, 0);
1720 0 : goto Cleanup;
1721 : }
1722 :
1723 0 : if ((_bcp_fgets(buffer, sizeof(buffer), ffile)) != NULL) {
1724 0 : lf_version = (float)atof(buffer);
1725 0 : } else if (ferror(ffile)) {
1726 0 : dbperror(dbproc, SYBEBRFF, errno);
1727 0 : goto Cleanup;
1728 : }
1729 :
1730 0 : if ((_bcp_fgets(buffer, sizeof(buffer), ffile)) != NULL) {
1731 0 : li_numcols = atoi(buffer);
1732 0 : } else if (ferror(ffile)) {
1733 0 : dbperror(dbproc, SYBEBRFF, errno);
1734 0 : goto Cleanup;
1735 : }
1736 :
1737 0 : if (li_numcols <= 0)
1738 : goto Cleanup;
1739 :
1740 0 : if (bcp_columns(dbproc, li_numcols) == FAIL)
1741 : goto Cleanup;
1742 :
1743 : do {
1744 0 : memset(hostcol, 0, sizeof(hostcol));
1745 :
1746 0 : if (_bcp_fgets(buffer, sizeof(buffer), ffile) == NULL)
1747 : goto Cleanup;
1748 :
1749 0 : if (!_bcp_readfmt_colinfo(dbproc, buffer, hostcol))
1750 : goto Cleanup;
1751 :
1752 0 : if (bcp_colfmt(dbproc, hostcol->host_column, hostcol->datatype,
1753 : hostcol->prefix_len, hostcol->column_len,
1754 0 : hostcol->terminator, hostcol->term_len, hostcol->tab_colnum) == FAIL) {
1755 : goto Cleanup;
1756 : }
1757 :
1758 0 : TDS_ZERO_FREE(hostcol->terminator);
1759 0 : } while (++colinfo_count < li_numcols);
1760 :
1761 0 : if (ferror(ffile)) {
1762 0 : dbperror(dbproc, SYBEBRFF, errno);
1763 0 : goto Cleanup;
1764 : }
1765 :
1766 0 : if (fclose(ffile) != 0) {
1767 0 : dbperror(dbproc, SYBEBUCF, 0);
1768 : /* even if failure is returned ffile is no more valid */
1769 0 : ffile = NULL;
1770 0 : goto Cleanup;
1771 : }
1772 0 : ffile = NULL;
1773 :
1774 0 : if (colinfo_count != li_numcols)
1775 : goto Cleanup;
1776 :
1777 : return SUCCEED;
1778 :
1779 0 : Cleanup:
1780 0 : TDS_ZERO_FREE(hostcol->terminator);
1781 0 : _bcp_free_columns(dbproc);
1782 0 : if (ffile)
1783 0 : fclose(ffile);
1784 : return FAIL;
1785 : }
1786 :
1787 : /**
1788 : * \ingroup dblib_bcp_internal
1789 : * \brief
1790 : *
1791 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1792 : * \param buf
1793 : * \param ci
1794 : *
1795 : * \return SUCCEED or FAIL.
1796 : * \sa BCP_SETL(), bcp_batch(), bcp_bind(), bcp_colfmt(), bcp_colfmt_ps(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(), bcp_done(), bcp_exec(), bcp_getl(), bcp_init(), bcp_moretext(), bcp_options(), bcp_readfmt(), bcp_sendrow()
1797 : */
1798 : static int
1799 0 : _bcp_readfmt_colinfo(DBPROCESS * dbproc, char *buf, BCP_HOSTCOLINFO * ci)
1800 : {
1801 : char *tok;
1802 : int whichcol;
1803 : char term[30];
1804 : int i;
1805 : char *lasts;
1806 :
1807 : enum nextcol
1808 : {
1809 : HOST_COLUMN,
1810 : DATATYPE,
1811 : PREFIX_LEN,
1812 : COLUMN_LEN,
1813 : TERMINATOR,
1814 : TAB_COLNUM,
1815 : NO_MORE_COLS
1816 : };
1817 :
1818 0 : assert(dbproc);
1819 0 : assert(buf);
1820 0 : assert(ci);
1821 0 : tdsdump_log(TDS_DBG_FUNC, "_bcp_readfmt_colinfo(%p, %s, %p)\n", dbproc, buf, ci);
1822 :
1823 0 : tok = strtok_r(buf, " \t", &lasts);
1824 0 : whichcol = HOST_COLUMN;
1825 :
1826 : /* TODO use a better way to get an int atoi is very error prone */
1827 0 : while (tok != NULL && whichcol != NO_MORE_COLS) {
1828 0 : switch (whichcol) {
1829 :
1830 0 : case HOST_COLUMN:
1831 0 : ci->host_column = atoi(tok);
1832 :
1833 0 : if (ci->host_column < 1) {
1834 0 : dbperror(dbproc, SYBEBIHC, 0);
1835 0 : return (FALSE);
1836 : }
1837 :
1838 : whichcol = DATATYPE;
1839 : break;
1840 :
1841 0 : case DATATYPE:
1842 0 : if (strcmp(tok, "SYBCHAR") == 0)
1843 0 : ci->datatype = SYBCHAR;
1844 0 : else if (strcmp(tok, "SYBTEXT") == 0)
1845 0 : ci->datatype = SYBTEXT;
1846 0 : else if (strcmp(tok, "SYBBINARY") == 0)
1847 0 : ci->datatype = SYBBINARY;
1848 0 : else if (strcmp(tok, "SYBIMAGE") == 0)
1849 0 : ci->datatype = SYBIMAGE;
1850 0 : else if (strcmp(tok, "SYBINT1") == 0)
1851 0 : ci->datatype = SYBINT1;
1852 0 : else if (strcmp(tok, "SYBINT2") == 0)
1853 0 : ci->datatype = SYBINT2;
1854 0 : else if (strcmp(tok, "SYBINT4") == 0)
1855 0 : ci->datatype = SYBINT4;
1856 0 : else if (strcmp(tok, "SYBINT8") == 0)
1857 0 : ci->datatype = SYBINT8;
1858 0 : else if (strcmp(tok, "SYBFLT8") == 0)
1859 0 : ci->datatype = SYBFLT8;
1860 0 : else if (strcmp(tok, "SYBREAL") == 0)
1861 0 : ci->datatype = SYBREAL;
1862 0 : else if (strcmp(tok, "SYBBIT") == 0)
1863 0 : ci->datatype = SYBBIT;
1864 0 : else if (strcmp(tok, "SYBNUMERIC") == 0)
1865 0 : ci->datatype = SYBNUMERIC;
1866 0 : else if (strcmp(tok, "SYBDECIMAL") == 0)
1867 0 : ci->datatype = SYBDECIMAL;
1868 0 : else if (strcmp(tok, "SYBMONEY") == 0)
1869 0 : ci->datatype = SYBMONEY;
1870 0 : else if (strcmp(tok, "SYBMONEY4") == 0)
1871 0 : ci->datatype = SYBMONEY4;
1872 0 : else if (strcmp(tok, "SYBDATETIME") == 0)
1873 0 : ci->datatype = SYBDATETIME;
1874 0 : else if (strcmp(tok, "SYBDATETIME4") == 0)
1875 0 : ci->datatype = SYBDATETIME4;
1876 : /* TODO SQL* for MS
1877 : SQLNCHAR SQLBIGINT SQLTINYINT SQLSMALLINT
1878 : SQLUNIQUEID SQLVARIANT SQLUDT */
1879 : else {
1880 0 : dbperror(dbproc, SYBEBUDF, 0);
1881 0 : return (FALSE);
1882 : }
1883 :
1884 : whichcol = PREFIX_LEN;
1885 : break;
1886 :
1887 0 : case PREFIX_LEN:
1888 0 : ci->prefix_len = atoi(tok);
1889 0 : whichcol = COLUMN_LEN;
1890 0 : break;
1891 0 : case COLUMN_LEN:
1892 0 : ci->column_len = atoi(tok);
1893 0 : whichcol = TERMINATOR;
1894 0 : break;
1895 0 : case TERMINATOR:
1896 :
1897 0 : if (*tok++ != '\"')
1898 : return (FALSE);
1899 :
1900 0 : for (i = 0; *tok != '\"' && i < sizeof(term); i++) {
1901 0 : if (*tok == '\\') {
1902 0 : tok++;
1903 0 : switch (*tok) {
1904 0 : case 't':
1905 0 : term[i] = '\t';
1906 0 : break;
1907 0 : case 'n':
1908 0 : term[i] = '\n';
1909 0 : break;
1910 0 : case 'r':
1911 0 : term[i] = '\r';
1912 0 : break;
1913 0 : case '\\':
1914 0 : term[i] = '\\';
1915 0 : break;
1916 0 : case '0':
1917 0 : term[i] = '\0';
1918 0 : break;
1919 : default:
1920 : return (FALSE);
1921 : }
1922 0 : tok++;
1923 : } else
1924 0 : term[i] = *tok++;
1925 : }
1926 :
1927 0 : if (*tok != '\"')
1928 : return (FALSE);
1929 :
1930 0 : ci->term_len = i;
1931 0 : TDS_ZERO_FREE(ci->terminator);
1932 0 : if (i > 0) {
1933 0 : if ((ci->terminator = tds_new(BYTE, i)) == NULL) {
1934 0 : dbperror(dbproc, SYBEMEM, errno);
1935 0 : return FALSE;
1936 : }
1937 0 : memcpy(ci->terminator, term, i);
1938 : }
1939 :
1940 : whichcol = TAB_COLNUM;
1941 : break;
1942 :
1943 0 : case TAB_COLNUM:
1944 0 : ci->tab_colnum = atoi(tok);
1945 0 : whichcol = NO_MORE_COLS;
1946 0 : break;
1947 :
1948 : }
1949 0 : tok = strtok_r(NULL, " \t", &lasts);
1950 : }
1951 0 : if (whichcol == NO_MORE_COLS)
1952 : return (TRUE);
1953 : else
1954 0 : return (FALSE);
1955 : }
1956 :
1957 : #if defined(DBLIB_UNIMPLEMENTED)
1958 : /**
1959 : * \ingroup dblib_bcp
1960 : * \brief Write a format definition file. Not Implemented.
1961 : *
1962 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1963 : * \param filename Name that would be passed to fopen(3).
1964 : *
1965 : * \remarks Reads a format file and calls bcp_columns() and bcp_colfmt() as needed.
1966 : * \a FreeTDS includes freebcp, a utility to copy data to or from a host file.
1967 : *
1968 : * \todo For completeness, \a freebcp ought to be able to create format files, but that functionality
1969 : * is currently lacking, as is bcp_writefmt().
1970 : * \todo See the vendors' documentation for the format of these files.
1971 : *
1972 : * \return SUCCEED or FAIL.
1973 : * \sa bcp_colfmt(), bcp_colfmt_ps(), bcp_columns(), bcp_readfmt()
1974 : */
1975 : RETCODE
1976 : bcp_writefmt(DBPROCESS * dbproc, const char filename[])
1977 : {
1978 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED: bcp_writefmt(%p, %s)\n", dbproc, filename? filename:"NULL");
1979 : CHECK_CONN(FAIL);
1980 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
1981 : CHECK_NULP(filename, "bcp_writefmt", 2, FAIL);
1982 :
1983 : #if 0
1984 : dbperror(dbproc, SYBEBUFF, errno); /* bcp: Unable to create format file */
1985 : dbperror(dbproc, SYBEBWFF, errno); /* I/O error while writing bcp format file */
1986 : #endif
1987 :
1988 : return FAIL;
1989 : }
1990 :
1991 : /**
1992 : * \ingroup dblib_bcp
1993 : * \brief Write some text or image data to the server. Not implemented, sadly.
1994 : *
1995 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
1996 : * \param size How much to write, in bytes.
1997 : * \param text Address of the data to be written.
1998 : * \remarks For a SYBTEXT or SYBIMAGE column, bcp_bind() can be called with
1999 : * a NULL varaddr parameter. If it is, bcp_sendrow() will return control
2000 : * to the application after the non-text data have been sent. The application then calls
2001 : * bcp_moretext() -- usually in a loop -- to send the text data in manageable chunks.
2002 : * \todo implement bcp_moretext().
2003 : * \return SUCCEED or FAIL.
2004 : * \sa bcp_bind(), bcp_sendrow(), dbmoretext(), dbwritetext()
2005 : */
2006 : RETCODE
2007 : bcp_moretext(DBPROCESS * dbproc, DBINT size, BYTE * text)
2008 : {
2009 : tdsdump_log(TDS_DBG_FUNC, "UNIMPLEMENTED: bcp_moretext(%p, %d, %p)\n", dbproc, size, text);
2010 : CHECK_CONN(FAIL);
2011 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
2012 : CHECK_NULP(text, "bcp_moretext", 3, FAIL);
2013 :
2014 : #if 0
2015 : dbperror(dbproc, SYBEBCMTXT, 0);
2016 : /* bcp_moretext may be used only when there is at least one text or image column in the server table */
2017 : dbperror(dbproc, SYBEBTMT, 0);
2018 : /* Attempt to send too much text data via the bcp_moretext call */
2019 : #endif
2020 : return FAIL;
2021 : }
2022 : #endif
2023 :
2024 : /**
2025 : * \ingroup dblib_bcp
2026 : * \brief Commit a set of rows to the table.
2027 : *
2028 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2029 : * \remarks If not called, bcp_done() will cause the rows to be saved.
2030 : * \return Count of rows saved, or -1 on error.
2031 : * \sa bcp_bind(), bcp_done(), bcp_sendrow()
2032 : */
2033 : DBINT
2034 10 : bcp_batch(DBPROCESS * dbproc)
2035 : {
2036 10 : int rows_copied = 0;
2037 :
2038 10 : tdsdump_log(TDS_DBG_FUNC, "bcp_batch(%p)\n", dbproc);
2039 10 : CHECK_CONN(-1);
2040 10 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, -1);
2041 :
2042 10 : if (TDS_FAILED(tds_bcp_done(dbproc->tds_socket, &rows_copied)))
2043 : return -1;
2044 :
2045 10 : tds_bcp_start(dbproc->tds_socket, dbproc->bcpinfo);
2046 :
2047 10 : return rows_copied;
2048 : }
2049 :
2050 : /**
2051 : * \ingroup dblib_bcp
2052 : * \brief Conclude the transfer of data from program variables.
2053 : *
2054 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2055 : * \remarks Do not overlook this function. According to Sybase, failure to call bcp_done()
2056 : * "will result in unpredictable errors".
2057 : * \return As with bcp_batch(), the count of rows saved, or -1 on error.
2058 : * \sa bcp_batch(), bcp_bind(), bcp_moretext(), bcp_sendrow()
2059 : */
2060 : DBINT
2061 38 : bcp_done(DBPROCESS * dbproc)
2062 : {
2063 : int rows_copied;
2064 :
2065 38 : tdsdump_log(TDS_DBG_FUNC, "bcp_done(%p)\n", dbproc);
2066 38 : CHECK_CONN(-1);
2067 :
2068 38 : if (!(dbproc->bcpinfo))
2069 : return -1;
2070 :
2071 38 : if (TDS_FAILED(tds_bcp_done(dbproc->tds_socket, &rows_copied)))
2072 : return -1;
2073 :
2074 20 : _bcp_free_storage(dbproc);
2075 :
2076 20 : return rows_copied;
2077 : }
2078 :
2079 : /**
2080 : * \ingroup dblib_bcp
2081 : * \brief Bind a program host variable to a database column
2082 : *
2083 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2084 : * \param varaddr address of host variable
2085 : * \param prefixlen length of any prefix found at the beginning of \a varaddr, in bytes.
2086 : Use zero for fixed-length datatypes.
2087 : * \param varlen bytes of data in \a varaddr. Zero for NULL, -1 for fixed-length datatypes.
2088 : * \param terminator byte sequence that marks the end of the data in \a varaddr
2089 : * \param termlen length of \a terminator
2090 : * \param vartype datatype of the host variable
2091 : * \param table_column Nth column, starting at 1, in the table.
2092 : *
2093 : * \remarks The order of operation is:
2094 : * - bcp_init() with \a hfile == NULL and \a direction == DB_IN.
2095 : * - bcp_bind(), once per column you want to write to
2096 : * - bcp_batch(), optionally, to commit a set of rows
2097 : * - bcp_done()
2098 : * \return SUCCEED or FAIL.
2099 : * \sa bcp_batch(), bcp_colfmt(), bcp_collen(), bcp_colptr(), bcp_columns(), bcp_control(),
2100 : * bcp_done(), bcp_exec(), bcp_moretext(), bcp_sendrow()
2101 : */
2102 : RETCODE
2103 324 : bcp_bind(DBPROCESS * dbproc, BYTE * varaddr, int prefixlen, DBINT varlen,
2104 : BYTE * terminator, int termlen, int db_vartype, int table_column)
2105 : {
2106 : TDS_SERVER_TYPE vartype;
2107 : TDSCOLUMN *colinfo;
2108 :
2109 324 : tdsdump_log(TDS_DBG_FUNC, "bcp_bind(%p, %p, %d, %d -- %p, %d, %s, %d)\n",
2110 : dbproc, varaddr, prefixlen, varlen,
2111 : terminator, termlen, dbprtype(db_vartype), table_column);
2112 324 : CHECK_CONN(FAIL);
2113 324 : CHECK_PARAMETER(dbproc->bcpinfo, SYBEBCPI, FAIL);
2114 648 : DBPERROR_RETURN(db_vartype != 0 && !is_tds_type_valid(db_vartype), SYBEUDTY);
2115 324 : vartype = (TDS_SERVER_TYPE) db_vartype;
2116 :
2117 324 : if (dbproc->hostfileinfo != NULL) {
2118 0 : dbperror(dbproc, SYBEBCPB, 0);
2119 0 : return FAIL;
2120 : }
2121 :
2122 324 : if (dbproc->bcpinfo->direction != DB_IN) {
2123 0 : dbperror(dbproc, SYBEBCPN, 0);
2124 0 : return FAIL;
2125 : }
2126 :
2127 324 : if (varlen < -1) {
2128 0 : dbperror(dbproc, SYBEBCVLEN, 0);
2129 0 : return FAIL;
2130 : }
2131 :
2132 324 : if (prefixlen != 0 && prefixlen != 1 && prefixlen != 2 && prefixlen != 4) {
2133 0 : dbperror(dbproc, SYBEBCBPREF, 0);
2134 0 : return FAIL;
2135 : }
2136 :
2137 324 : if (prefixlen == 0 && varlen == -1 && termlen == -1 && !is_fixed_type(vartype)) {
2138 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_bind(): non-fixed type %d requires prefix or terminator\n", vartype);
2139 : return FAIL;
2140 : }
2141 :
2142 324 : if (is_fixed_type(vartype) && (varlen != -1 && varlen != 0)) {
2143 0 : dbperror(dbproc, SYBEBCIT, 0);
2144 0 : return FAIL;
2145 : }
2146 :
2147 324 : if (table_column <= 0 || table_column > dbproc->bcpinfo->bindinfo->num_cols) {
2148 0 : dbperror(dbproc, SYBECNOR, 0);
2149 0 : return FAIL;
2150 : }
2151 :
2152 324 : if (varaddr == NULL && (prefixlen != 0 || termlen != 0)) {
2153 0 : dbperror(dbproc, SYBEBCBNPR, 0);
2154 0 : return FAIL;
2155 : }
2156 :
2157 324 : colinfo = dbproc->bcpinfo->bindinfo->columns[table_column - 1];
2158 :
2159 : /* If varaddr is NULL and varlen greater than 0, the table column type must be SYBTEXT or SYBIMAGE
2160 : and the program variable type must be SYBTEXT, SYBCHAR, SYBIMAGE or SYBBINARY */
2161 324 : if (varaddr == NULL && varlen > 0) {
2162 0 : int fOK = (colinfo->column_type == SYBTEXT || colinfo->column_type == SYBIMAGE) &&
2163 0 : (vartype == SYBTEXT || vartype == SYBCHAR || vartype == SYBIMAGE || vartype == SYBBINARY );
2164 : if( !fOK ) {
2165 0 : dbperror(dbproc, SYBEBCBNTYP, 0);
2166 0 : tdsdump_log(TDS_DBG_FUNC, "bcp_bind: SYBEBCBNTYP: column=%d and vartype=%d (should fail?)\n",
2167 0 : colinfo->column_type, vartype);
2168 : /* return FAIL; */
2169 : }
2170 : }
2171 :
2172 324 : colinfo->column_varaddr = (char *)varaddr;
2173 324 : colinfo->column_bindtype = vartype;
2174 324 : colinfo->column_bindlen = varlen;
2175 324 : colinfo->bcp_prefix_len = prefixlen;
2176 :
2177 324 : TDS_ZERO_FREE(colinfo->bcp_terminator);
2178 324 : colinfo->bcp_term_len = 0;
2179 324 : if (termlen > 0) {
2180 54 : if ((colinfo->bcp_terminator = tds_new(TDS_CHAR, termlen)) == NULL) {
2181 0 : dbperror(dbproc, SYBEMEM, errno);
2182 0 : return FAIL;
2183 : }
2184 54 : memcpy(colinfo->bcp_terminator, terminator, termlen);
2185 54 : colinfo->bcp_term_len = termlen;
2186 : }
2187 :
2188 : return SUCCEED;
2189 : }
2190 :
2191 : static void
2192 2 : _bcp_null_error(TDSBCPINFO *bcpinfo, int index TDS_UNUSED, int offset TDS_UNUSED)
2193 : {
2194 2 : DBPROCESS *dbproc = (DBPROCESS *) bcpinfo->parent;
2195 2 : dbperror(dbproc, SYBEBCNN, 0);
2196 2 : }
2197 :
2198 : /**
2199 : * \ingroup dblib_bcp_internal
2200 : * \brief For a bcp in from program variables, get the data from the host variable
2201 : *
2202 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2203 : * \param bindcol
2204 : *
2205 : * \return TDS_SUCCESS or TDS_FAIL.
2206 : * \sa _bcp_add_fixed_columns, _bcp_add_variable_columns, _bcp_send_bcp_record
2207 : */
2208 : static TDSRET
2209 4138 : _bcp_get_col_data(TDSBCPINFO *bcpinfo, TDSCOLUMN *bindcol, int offset TDS_UNUSED)
2210 : {
2211 : TDS_SERVER_TYPE coltype, desttype;
2212 : int collen;
2213 : int bytes_read;
2214 : BYTE *dataptr;
2215 4138 : DBPROCESS *dbproc = (DBPROCESS *) bcpinfo->parent;
2216 : TDSRET rc;
2217 :
2218 4138 : tdsdump_log(TDS_DBG_FUNC, "_bcp_get_col_data(%p, %p)\n", bcpinfo, bindcol);
2219 4138 : CHECK_CONN(TDS_FAIL);
2220 4138 : CHECK_NULP(bindcol, "_bcp_get_col_data", 2, TDS_FAIL);
2221 :
2222 4138 : dataptr = (BYTE *) bindcol->column_varaddr;
2223 :
2224 4138 : collen = 0;
2225 :
2226 : /* If a prefix length specified, read the correct amount of data. */
2227 :
2228 4138 : if (bindcol->bcp_prefix_len > 0) {
2229 :
2230 0 : switch (bindcol->bcp_prefix_len) {
2231 0 : case 1:
2232 0 : collen = TDS_GET_UA1(dataptr);
2233 0 : dataptr += 1;
2234 0 : break;
2235 0 : case 2:
2236 0 : collen = (TDS_SMALLINT) TDS_GET_UA2(dataptr);
2237 0 : dataptr += 2;
2238 0 : break;
2239 0 : case 4:
2240 0 : collen = (TDS_INT) TDS_GET_UA4(dataptr);
2241 0 : dataptr += 4;
2242 0 : break;
2243 : }
2244 0 : if (collen <= 0)
2245 : goto null_data;
2246 : }
2247 :
2248 : /* if (Max) column length specified take that into consideration. */
2249 :
2250 4138 : if (bindcol->column_bindlen >= 0) {
2251 2800 : if (bindcol->column_bindlen == 0)
2252 : goto null_data;
2253 1500 : if (collen)
2254 0 : collen = TDS_MIN(bindcol->column_bindlen, collen);
2255 : else
2256 : collen = bindcol->column_bindlen;
2257 : }
2258 :
2259 2838 : desttype = tds_get_conversion_type(bindcol->column_type, bindcol->column_size);
2260 :
2261 2838 : coltype = bindcol->column_bindtype == 0 ? desttype : (TDS_SERVER_TYPE) bindcol->column_bindtype;
2262 :
2263 : /* Fixed Length data - this overrides anything else specified */
2264 2838 : if (is_fixed_type(coltype))
2265 750 : collen = tds_get_size_by_type(coltype);
2266 :
2267 : /* read the data, finally */
2268 :
2269 2838 : if (bindcol->bcp_term_len > 0) { /* terminated field */
2270 88 : bytes_read = _bcp_get_term_var(dataptr, (BYTE *)bindcol->bcp_terminator, bindcol->bcp_term_len);
2271 :
2272 88 : if (collen <= 0 || bytes_read < collen)
2273 88 : collen = bytes_read;
2274 :
2275 88 : if (collen == 0)
2276 : goto null_data;
2277 : }
2278 :
2279 2810 : if (collen < 0)
2280 0 : collen = (int) strlen((char *) dataptr);
2281 :
2282 2810 : rc = _bcp_convert_in(dbproc, coltype, (const TDS_CHAR*) dataptr, collen,
2283 : desttype, bindcol->bcp_column_data);
2284 2810 : if (TDS_FAILED(rc))
2285 : return rc;
2286 2810 : rtrim_bcpcol(bindcol);
2287 :
2288 2810 : return TDS_SUCCESS;
2289 :
2290 1328 : null_data:
2291 1328 : bindcol->bcp_column_data->datalen = 0;
2292 1328 : bindcol->bcp_column_data->is_null = true;
2293 1328 : return TDS_SUCCESS;
2294 : }
2295 :
2296 : /**
2297 : * Function to read data from file. In this case is empty as data
2298 : * are already on bcp_column_data
2299 : */
2300 : static TDSRET
2301 1578 : _bcp_no_get_col_data(TDSBCPINFO *bcpinfo TDS_UNUSED, TDSCOLUMN *bindcol TDS_UNUSED, int offset TDS_UNUSED)
2302 : {
2303 1578 : return TDS_SUCCESS;
2304 : }
2305 :
2306 : /**
2307 : * Get the data for bcp-in from program variables, where the program data
2308 : * have been identified as character terminated,
2309 : * This is a low-level, internal function. Call it correctly.
2310 : */
2311 : /**
2312 : * \ingroup dblib_bcp_internal
2313 : * \brief
2314 : *
2315 : * \param pdata
2316 : * \param term
2317 : * \param term_len
2318 : *
2319 : * \return data length.
2320 : */
2321 : static int
2322 88 : _bcp_get_term_var(const BYTE * pdata, const BYTE * term, int term_len)
2323 : {
2324 : int bufpos;
2325 :
2326 88 : assert(term_len > 0);
2327 :
2328 : /* if bufpos becomes negative, we probably failed to find the terminator */
2329 330 : for (bufpos = 0; bufpos >= 0 && memcmp(pdata, term, term_len) != 0; pdata++) {
2330 330 : bufpos++;
2331 : }
2332 :
2333 : assert(bufpos >= 0);
2334 88 : return bufpos;
2335 : }
2336 :
2337 : /**
2338 : * \ingroup dblib_bcp_internal
2339 : * \brief trim a string of trailing blanks
2340 : *
2341 : * Replaces spaces at the end of a string with NULs
2342 : * \param str pointer to a character buffer (not null-terminated)
2343 : * \param len size of the \a str in bytes
2344 : *
2345 : * \return modified length
2346 : */
2347 : static int
2348 : rtrim(char *str, int len)
2349 : {
2350 1022 : char *p = str + len - 1;
2351 :
2352 1516 : while (p > str && *p == ' ') {
2353 494 : *p-- = '\0';
2354 : }
2355 1022 : return (int)(1 + p - str);
2356 : }
2357 :
2358 : static int
2359 : rtrim_u16(uint16_t *str, int len, uint16_t space)
2360 : {
2361 62 : uint16_t *p = str + len / 2 - 1;
2362 :
2363 62 : while (p > str && *p == space) {
2364 0 : *p-- = '\0';
2365 : }
2366 62 : return (int)(1 + p - str) * 2;
2367 : }
2368 :
2369 : /**
2370 : * \ingroup dblib_bcp_internal
2371 : * \brief
2372 : *
2373 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2374 : */
2375 : static void
2376 840 : _bcp_free_columns(DBPROCESS * dbproc)
2377 : {
2378 : int i;
2379 :
2380 840 : tdsdump_log(TDS_DBG_FUNC, "_bcp_free_columns(%p)\n", dbproc);
2381 840 : assert(dbproc && dbproc->hostfileinfo);
2382 :
2383 840 : if (dbproc->hostfileinfo->host_columns) {
2384 3032 : for (i = 0; i < dbproc->hostfileinfo->host_colcount; i++) {
2385 3032 : TDS_ZERO_FREE(dbproc->hostfileinfo->host_columns[i]->terminator);
2386 3032 : TDS_ZERO_FREE(dbproc->hostfileinfo->host_columns[i]);
2387 : }
2388 560 : TDS_ZERO_FREE(dbproc->hostfileinfo->host_columns);
2389 560 : dbproc->hostfileinfo->host_colcount = 0;
2390 : }
2391 840 : }
2392 :
2393 : /**
2394 : * \ingroup dblib_bcp_internal
2395 : * \brief
2396 : *
2397 : * \param dbproc contains all information needed by db-lib to manage communications with the server.
2398 : *
2399 : * \sa bcp_done(), bcp_exec(), bcp_init()
2400 : */
2401 : static void
2402 618 : _bcp_free_storage(DBPROCESS * dbproc)
2403 : {
2404 618 : tdsdump_log(TDS_DBG_FUNC, "_bcp_free_storage(%p)\n", dbproc);
2405 618 : assert(dbproc);
2406 :
2407 618 : if (dbproc->hostfileinfo) {
2408 280 : TDS_ZERO_FREE(dbproc->hostfileinfo->hostfile);
2409 280 : TDS_ZERO_FREE(dbproc->hostfileinfo->errorfile);
2410 280 : _bcp_free_columns(dbproc);
2411 280 : TDS_ZERO_FREE(dbproc->hostfileinfo);
2412 : }
2413 :
2414 618 : tds_free_bcpinfo(dbproc->bcpinfo);
2415 618 : dbproc->bcpinfo = NULL;
2416 618 : }
2417 :
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