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Overview
Comment: | Fix a segfault that occurs on a corrupt database. (CVS 2248) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
d1166472fd17960eb3016f3d5d3bf44a |
User & Date: | drh 2005-01-21 00:22:38.000 |
Context
2005-01-21
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00:44 | Change the implementation of ALTER TABLE so that it does not use the IN() operattor. (CVS 2249) (check-in: 06887afb32 user: danielk1977 tags: trunk) | |
00:22 | Fix a segfault that occurs on a corrupt database. (CVS 2248) (check-in: d1166472fd user: drh tags: trunk) | |
2005-01-20
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23:23 | Fix comment typo in mkopcodec.awk. (CVS 2247) (check-in: 6177148260 user: drh tags: trunk) | |
Changes
Changes to src/btree.c.
1 2 3 4 5 6 7 8 9 10 11 | /* ** 2004 April 6 ** ** 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. ** ************************************************************************* | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | /* ** 2004 April 6 ** ** 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. ** ************************************************************************* ** $Id: btree.c,v 1.242 2005/01/21 00:22:38 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. |
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2709 2710 2711 2712 2713 2714 2715 | assert( pCur->pPage ); assert( pCur->pPage->isInit ); if( pCur->isValid==0 ){ *pRes = -1; assert( pCur->pPage->nCell==0 ); return SQLITE_OK; } | | > > > | 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 | assert( pCur->pPage ); assert( pCur->pPage->isInit ); if( pCur->isValid==0 ){ *pRes = -1; assert( pCur->pPage->nCell==0 ); return SQLITE_OK; } for(;;){ int lwr, upr; Pgno chldPg; MemPage *pPage = pCur->pPage; int c = -1; /* pRes return if table is empty must be -1 */ lwr = 0; upr = pPage->nCell-1; if( !pPage->intKey && pKey==0 ){ return SQLITE_CORRUPT; } pageIntegrity(pPage); while( lwr<=upr ){ void *pCellKey; i64 nCellKey; pCur->idx = (lwr+upr)/2; pCur->info.nSize = 0; sqlite3BtreeKeySize(pCur, &nCellKey); |
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