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Overview
Comment: | Fix a problem whereby the *ppVtab output buffer passed to sqlite3_module.xConstruct() could be invalidated (freed) if a malloc() failure occured within a call to sqlite3_declare_vtab(). (CVS 4397) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
efd61df1b9170f0134787ae17ac996a7 |
User & Date: | danielk1977 2007-09-04 15:38:58.000 |
Context
2007-09-04
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18:28 | Add external locking to test_async.c. There are still some tests to come. (CVS 4398) (check-in: 3794dcd31a user: danielk1977 tags: trunk) | |
15:38 | Fix a problem whereby the *ppVtab output buffer passed to sqlite3_module.xConstruct() could be invalidated (freed) if a malloc() failure occured within a call to sqlite3_declare_vtab(). (CVS 4397) (check-in: efd61df1b9 user: danielk1977 tags: trunk) | |
14:31 | Add internal locking to the test_async.c backend. So that more than one connection may be used from within a single process. (CVS 4396) (check-in: 17ca684c12 user: danielk1977 tags: trunk) | |
Changes
Changes to src/vtab.c.
1 2 3 4 5 6 7 8 9 10 11 12 13 | /* ** 2006 June 10 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains code used to help implement virtual tables. ** | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | /* ** 2006 June 10 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** This file contains code used to help implement virtual tables. ** ** $Id: vtab.c,v 1.57 2007/09/04 15:38:58 danielk1977 Exp $ */ #ifndef SQLITE_OMIT_VIRTUALTABLE #include "sqliteInt.h" static int createModule( sqlite3 *db, /* Database in which module is registered */ const char *zName, /* Name assigned to this module */ |
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339 340 341 342 343 344 345 | Table *pTab, Module *pMod, int (*xConstruct)(sqlite3*,void*,int,const char*const*,sqlite3_vtab**,char**), char **pzErr ){ int rc; int rc2; | | | < > | 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 | Table *pTab, Module *pMod, int (*xConstruct)(sqlite3*,void*,int,const char*const*,sqlite3_vtab**,char**), char **pzErr ){ int rc; int rc2; sqlite3_vtab *pVtab = 0; const char *const*azArg = (const char *const*)pTab->azModuleArg; int nArg = pTab->nModuleArg; char *zErr = 0; char *zModuleName = sqlite3MPrintf(db, "%s", pTab->zName); if( !zModuleName ){ return SQLITE_NOMEM; } assert( !db->pVTab ); assert( xConstruct ); db->pVTab = pTab; rc = sqlite3SafetyOff(db); assert( rc==SQLITE_OK ); rc = xConstruct(db, pMod->pAux, nArg, azArg, &pVtab, &zErr); rc2 = sqlite3SafetyOn(db); if( rc==SQLITE_OK && pVtab ){ pVtab->pModule = pMod->pModule; pVtab->nRef = 1; pTab->pVtab = pVtab; } if( SQLITE_OK!=rc ){ if( zErr==0 ){ *pzErr = sqlite3MPrintf(db, "vtable constructor failed: %s", zModuleName); }else { *pzErr = sqlite3MPrintf(db, "%s", zErr); |
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