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Overview
Comment: | Take steps to avoid a potential integer overflow in sessionBufferGrow(). |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
f7affa2e708d1b4c7c47157bcb18e9f7 |
User & Date: | dan 2018-10-18 15:17:18.844 |
Context
2018-10-20
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13:48 | Add the sqlite3changeset_start_v2() - a new version of _start() that accepts a flags parameter - and a streaming equivalent to the sessions module. Also add the SQLITE_CHANGESETSTART_INVERT flag, used with start_v2() to invert a changeset while iterating through it. (check-in: cbedcb9aae user: dan tags: trunk) | |
2018-10-18
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15:17 | Take steps to avoid a potential integer overflow in sessionBufferGrow(). (check-in: f7affa2e70 user: dan tags: trunk) | |
14:59 | Add the SQLITE_CHANGESETAPPLY_INVERT flag to sessions. For inverting and applying a changeset in a single step. (check-in: d4b6406e7f user: dan tags: trunk) | |
Changes
Changes to ext/session/sqlite3session.c.
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1790 1791 1792 1793 1794 1795 1796 | ** ** If successful, return zero. Otherwise, if an OOM condition is encountered, ** set *pRc to SQLITE_NOMEM and return non-zero. */ static int sessionBufferGrow(SessionBuffer *p, int nByte, int *pRc){ if( *pRc==SQLITE_OK && p->nAlloc-p->nBuf<nByte ){ u8 *aNew; | | | | | 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 | ** ** If successful, return zero. Otherwise, if an OOM condition is encountered, ** set *pRc to SQLITE_NOMEM and return non-zero. */ static int sessionBufferGrow(SessionBuffer *p, int nByte, int *pRc){ if( *pRc==SQLITE_OK && p->nAlloc-p->nBuf<nByte ){ u8 *aNew; i64 nNew = p->nAlloc ? p->nAlloc : 128; do { nNew = nNew*2; }while( (nNew-p->nBuf)<nByte ); aNew = (u8 *)sqlite3_realloc64(p->aBuf, nNew); if( 0==aNew ){ *pRc = SQLITE_NOMEM; }else{ p->aBuf = aNew; p->nAlloc = nNew; } } |
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