1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2016 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Wez Furlong <wez@php.net> |
16 | Frank M. Kromann <frank@kromann.info> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifdef HAVE_CONFIG_H
23 # include "config.h"
24 #endif
25
26 #include "php.h"
27 #include "php_ini.h"
28 #include "ext/standard/info.h"
29 #include "pdo/php_pdo.h"
30 #include "pdo/php_pdo_driver.h"
31 #include "php_pdo_dblib.h"
32 #include "php_pdo_dblib_int.h"
33 #include "zend_exceptions.h"
34
35 /* Cache of the server supported datatypes, initialized in handle_factory */
36 zval* pdo_dblib_datatypes;
37
dblib_fetch_error(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info TSRMLS_DC)38 static int dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC)
39 {
40 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
41 pdo_dblib_err *einfo = &H->err;
42 pdo_dblib_stmt *S = NULL;
43 char *message;
44 char *msg;
45
46 if (stmt) {
47 S = (pdo_dblib_stmt*)stmt->driver_data;
48 einfo = &S->err;
49 }
50
51 if (einfo->dberr == SYBESMSG && einfo->lastmsg) {
52 msg = einfo->lastmsg;
53 } else if (einfo->dberr == SYBESMSG && DBLIB_G(err).lastmsg) {
54 msg = DBLIB_G(err).lastmsg;
55 DBLIB_G(err).lastmsg = NULL;
56 } else {
57 msg = einfo->dberrstr;
58 }
59
60 spprintf(&message, 0, "%s [%d] (severity %d) [%s]",
61 msg, einfo->dberr, einfo->severity, stmt ? stmt->active_query_string : "");
62
63 add_next_index_long(info, einfo->dberr);
64 add_next_index_string(info, message, 0);
65 add_next_index_long(info, einfo->oserr);
66 add_next_index_long(info, einfo->severity);
67 if (einfo->oserrstr) {
68 add_next_index_string(info, einfo->oserrstr, 1);
69 }
70
71 return 1;
72 }
73
74
dblib_handle_closer(pdo_dbh_t * dbh TSRMLS_DC)75 static int dblib_handle_closer(pdo_dbh_t *dbh TSRMLS_DC)
76 {
77 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
78
79 if (H) {
80 if (H->link) {
81 dbclose(H->link);
82 H->link = NULL;
83 }
84 if (H->login) {
85 dbfreelogin(H->login);
86 H->login = NULL;
87 }
88 pefree(H, dbh->is_persistent);
89 dbh->driver_data = NULL;
90 }
91 return 0;
92 }
93
dblib_handle_preparer(pdo_dbh_t * dbh,const char * sql,long sql_len,pdo_stmt_t * stmt,zval * driver_options TSRMLS_DC)94 static int dblib_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC)
95 {
96 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
97 pdo_dblib_stmt *S = ecalloc(1, sizeof(*S));
98
99 S->H = H;
100 stmt->driver_data = S;
101 stmt->methods = &dblib_stmt_methods;
102 stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
103 S->err.sqlstate = stmt->error_code;
104
105 return 1;
106 }
107
dblib_handle_doer(pdo_dbh_t * dbh,const char * sql,long sql_len TSRMLS_DC)108 static long dblib_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC)
109 {
110 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
111 RETCODE ret, resret;
112
113 dbsetuserdata(H->link, (BYTE*)&H->err);
114
115 if (FAIL == dbcmd(H->link, sql)) {
116 return -1;
117 }
118
119 if (FAIL == dbsqlexec(H->link)) {
120 return -1;
121 }
122
123 resret = dbresults(H->link);
124
125 if (resret == FAIL) {
126 return -1;
127 }
128
129 ret = dbnextrow(H->link);
130 if (ret == FAIL) {
131 return -1;
132 }
133
134 if (dbnumcols(H->link) <= 0) {
135 return DBCOUNT(H->link);
136 }
137
138 /* throw away any rows it might have returned */
139 dbcanquery(H->link);
140
141 return DBCOUNT(H->link);
142 }
143
dblib_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,int unquotedlen,char ** quoted,int * quotedlen,enum pdo_param_type paramtype TSRMLS_DC)144 static int dblib_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, int unquotedlen, char **quoted, int *quotedlen, enum pdo_param_type paramtype TSRMLS_DC)
145 {
146 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
147 char *q;
148 int l = 1;
149
150 *quoted = q = safe_emalloc(2, unquotedlen, 3);
151 *q++ = '\'';
152
153 while (unquotedlen--) {
154 if (*unquoted == '\'') {
155 *q++ = '\'';
156 *q++ = '\'';
157 l += 2;
158 } else {
159 *q++ = *unquoted;
160 ++l;
161 }
162 unquoted++;
163 }
164
165 *q++ = '\'';
166 *q++ = '\0';
167 *quotedlen = l+1;
168
169 return 1;
170 }
171
pdo_dblib_transaction_cmd(const char * cmd,pdo_dbh_t * dbh TSRMLS_DC)172 static int pdo_dblib_transaction_cmd(const char *cmd, pdo_dbh_t *dbh TSRMLS_DC)
173 {
174 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
175 RETCODE ret;
176
177 if (FAIL == dbcmd(H->link, cmd)) {
178 return 0;
179 }
180
181 if (FAIL == dbsqlexec(H->link)) {
182 return 0;
183 }
184
185 return 1;
186 }
187
dblib_handle_begin(pdo_dbh_t * dbh TSRMLS_DC)188 static int dblib_handle_begin(pdo_dbh_t *dbh TSRMLS_DC)
189 {
190 return pdo_dblib_transaction_cmd("BEGIN TRANSACTION", dbh TSRMLS_CC);
191 }
192
dblib_handle_commit(pdo_dbh_t * dbh TSRMLS_DC)193 static int dblib_handle_commit(pdo_dbh_t *dbh TSRMLS_DC)
194 {
195 return pdo_dblib_transaction_cmd("COMMIT TRANSACTION", dbh TSRMLS_CC);
196 }
197
dblib_handle_rollback(pdo_dbh_t * dbh TSRMLS_DC)198 static int dblib_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC)
199 {
200 return pdo_dblib_transaction_cmd("ROLLBACK TRANSACTION", dbh TSRMLS_CC);
201 }
202
dblib_handle_last_id(pdo_dbh_t * dbh,const char * name,unsigned int * len TSRMLS_DC)203 char *dblib_handle_last_id(pdo_dbh_t *dbh, const char *name, unsigned int *len TSRMLS_DC)
204 {
205 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
206
207 RETCODE ret;
208 char *id = NULL;
209
210 /*
211 * Would use scope_identity() but it's not implemented on Sybase
212 */
213
214 if (FAIL == dbcmd(H->link, "SELECT @@IDENTITY")) {
215 return NULL;
216 }
217
218 if (FAIL == dbsqlexec(H->link)) {
219 return NULL;
220 }
221
222 ret = dbresults(H->link);
223 if (ret == FAIL || ret == NO_MORE_RESULTS) {
224 dbcancel(H->link);
225 return NULL;
226 }
227
228 ret = dbnextrow(H->link);
229
230 if (ret == FAIL || ret == NO_MORE_ROWS) {
231 dbcancel(H->link);
232 return NULL;
233 }
234
235 if (dbdatlen(H->link, 1) == 0) {
236 dbcancel(H->link);
237 return NULL;
238 }
239
240 id = emalloc(32);
241 *len = dbconvert(NULL, (dbcoltype(H->link, 1)) , (dbdata(H->link, 1)) , (dbdatlen(H->link, 1)), SQLCHAR, id, (DBINT)-1);
242
243 dbcancel(H->link);
244 return id;
245 }
246
247 static struct pdo_dbh_methods dblib_methods = {
248 dblib_handle_closer,
249 dblib_handle_preparer,
250 dblib_handle_doer,
251 dblib_handle_quoter,
252 dblib_handle_begin, /* begin */
253 dblib_handle_commit, /* commit */
254 dblib_handle_rollback, /* rollback */
255 NULL, /*set attr */
256 dblib_handle_last_id, /* last insert id */
257 dblib_fetch_error, /* fetch error */
258 NULL, /* get attr */
259 NULL, /* check liveness */
260 NULL, /* get driver methods */
261 NULL, /* request shutdown */
262 NULL /* in transaction */
263 };
264
pdo_dblib_handle_factory(pdo_dbh_t * dbh,zval * driver_options TSRMLS_DC)265 static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_DC)
266 {
267 pdo_dblib_db_handle *H;
268 int i, nvars, nvers, ret = 0;
269 int *val;
270
271 const pdo_dblib_keyval tdsver[] = {
272 {"4.2",DBVERSION_42}
273 ,{"4.6",DBVERSION_46}
274 ,{"5.0",DBVERSION_70} /* FIXME: This does not work with Sybase, but environ will */
275 ,{"6.0",DBVERSION_70}
276 ,{"7.0",DBVERSION_70}
277 #ifdef DBVERSION_71
278 ,{"7.1",DBVERSION_71}
279 #endif
280 #ifdef DBVERSION_72
281 ,{"7.2",DBVERSION_72}
282 ,{"8.0",DBVERSION_72}
283 #endif
284 #ifdef DBVERSION_73
285 ,{"7.3",DBVERSION_73}
286 #endif
287 #ifdef DBVERSION_74
288 ,{"7.4",DBVERSION_74}
289 #endif
290 ,{"10.0",DBVERSION_100}
291 ,{"auto",0} /* Only works with FreeTDS. Other drivers will bork */
292
293 };
294
295 struct pdo_data_src_parser vars[] = {
296 { "charset", NULL, 0 }
297 ,{ "appname", "PHP " PDO_DBLIB_FLAVOUR, 0 }
298 ,{ "host", "127.0.0.1", 0 }
299 ,{ "dbname", NULL, 0 }
300 ,{ "secure", NULL, 0 } /* DBSETLSECURE */
301 ,{ "version", NULL, 0 } /* DBSETLVERSION */
302 };
303
304 nvars = sizeof(vars)/sizeof(vars[0]);
305 nvers = sizeof(tdsver)/sizeof(tdsver[0]);
306
307 php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, nvars);
308
309 H = pecalloc(1, sizeof(*H), dbh->is_persistent);
310 H->login = dblogin();
311 H->err.sqlstate = dbh->error_code;
312
313 if (!H->login) {
314 goto cleanup;
315 }
316
317 DBERRHANDLE(H->login, (EHANDLEFUNC) error_handler);
318 DBMSGHANDLE(H->login, (MHANDLEFUNC) msg_handler);
319
320 if(vars[5].optval) {
321 for(i=0;i<nvers;i++) {
322 if(strcmp(vars[5].optval,tdsver[i].key) == 0) {
323 if(FAIL==dbsetlversion(H->login, tdsver[i].value)) {
324 pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Failed to set version specified in connection string." TSRMLS_CC);
325 goto cleanup;
326 }
327 break;
328 }
329 }
330
331 if (i==nvers) {
332 printf("Invalid version '%s'\n", vars[5].optval);
333 pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Invalid version specified in connection string." TSRMLS_CC);
334 goto cleanup; /* unknown version specified */
335 }
336 }
337
338 if (dbh->username) {
339 if(FAIL == DBSETLUSER(H->login, dbh->username)) {
340 goto cleanup;
341 }
342 }
343
344 if (dbh->password) {
345 if(FAIL == DBSETLPWD(H->login, dbh->password)) {
346 goto cleanup;
347 }
348 }
349
350 #if !PHP_DBLIB_IS_MSSQL
351 if (vars[0].optval) {
352 DBSETLCHARSET(H->login, vars[0].optval);
353 }
354 #endif
355
356 DBSETLAPP(H->login, vars[1].optval);
357
358 /* DBSETLDBNAME is only available in FreeTDS 0.92 or above */
359 #ifdef DBSETLDBNAME
360 if (vars[3].optval) {
361 if(FAIL == DBSETLDBNAME(H->login, vars[3].optval)) goto cleanup;
362 }
363 #endif
364
365 H->link = dbopen(H->login, vars[2].optval);
366
367 if (!H->link) {
368 goto cleanup;
369 }
370
371 /*
372 * FreeTDS < 0.92 does not support the DBSETLDBNAME option
373 * Send use database here after login (Will not work with SQL Azure)
374 */
375 #ifndef DBSETLDBNAME
376 if (vars[3].optval) {
377 if(FAIL == dbuse(H->link, vars[3].optval)) goto cleanup;
378 }
379 #endif
380
381 #if PHP_DBLIB_IS_MSSQL
382 /* dblib do not return more than this length from text/image */
383 DBSETOPT(H->link, DBTEXTLIMIT, "2147483647");
384 #endif
385
386 /* limit text/image from network */
387 DBSETOPT(H->link, DBTEXTSIZE, "2147483647");
388
389 /* allow double quoted indentifiers */
390 DBSETOPT(H->link, DBQUOTEDIDENT, "1");
391
392 ret = 1;
393 dbh->max_escaped_char_length = 2;
394 dbh->alloc_own_columns = 1;
395
396 cleanup:
397 for (i = 0; i < nvars; i++) {
398 if (vars[i].freeme) {
399 efree(vars[i].optval);
400 }
401 }
402
403 dbh->methods = &dblib_methods;
404 dbh->driver_data = H;
405
406 if (!ret) {
407 zend_throw_exception_ex(php_pdo_get_exception(), DBLIB_G(err).dberr TSRMLS_CC,
408 "SQLSTATE[%s] %s (severity %d)",
409 DBLIB_G(err).sqlstate,
410 DBLIB_G(err).dberrstr,
411 DBLIB_G(err).severity);
412 }
413
414 return ret;
415 }
416
417 pdo_driver_t pdo_dblib_driver = {
418 #if PDO_DBLIB_IS_MSSQL
419 PDO_DRIVER_HEADER(mssql),
420 #elif defined(PHP_WIN32)
421 #define PDO_DBLIB_IS_SYBASE
422 PDO_DRIVER_HEADER(sybase),
423 #else
424 PDO_DRIVER_HEADER(dblib),
425 #endif
426 pdo_dblib_handle_factory
427 };
428
429
