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Overview
| Comment: | Make sure the sqlite3_prepare16 and sqlite3_prepare16_v2 interfaces do not read past a zero-terminator if the nBytes parameter is too large. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 20dba3a7fb3e7078b95af3beca948467 |
| User & Date: | drh 2013-07-16 23:26:43 |
Context
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2013-07-17
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| 11:54 | Clear the error string pointer in sqlite3_vtab object after the error string is transferred to SQLite. Ticket [78588b938a11]. check-in: 64bf8148 user: drh tags: trunk | |
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2013-07-16
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| 23:26 | Make sure the sqlite3_prepare16 and sqlite3_prepare16_v2 interfaces do not read past a zero-terminator if the nBytes parameter is too large. check-in: 20dba3a7 user: drh tags: trunk | |
| 21:31 | Enhance the query planner so that it looks at multiple solutions to OR expressions in the WHERE clause. check-in: 5e19d054 user: drh tags: trunk | |
Changes
Changes to src/prepare.c.
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const char *zTail8 = 0;
int rc = SQLITE_OK;
assert( ppStmt );
*ppStmt = 0;
if( !sqlite3SafetyCheckOk(db) ){
return SQLITE_MISUSE_BKPT;
}
sqlite3_mutex_enter(db->mutex);
zSql8 = sqlite3Utf16to8(db, zSql, nBytes, SQLITE_UTF16NATIVE);
if( zSql8 ){
rc = sqlite3LockAndPrepare(db, zSql8, -1, saveSqlFlag, 0, ppStmt, &zTail8);
}
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> > > > > > |
805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 |
const char *zTail8 = 0;
int rc = SQLITE_OK;
assert( ppStmt );
*ppStmt = 0;
if( !sqlite3SafetyCheckOk(db) ){
return SQLITE_MISUSE_BKPT;
}
if( nBytes>=0 ){
int sz;
const char *z = (const char*)zSql;
for(sz=0; sz<nBytes && (z[sz]!=0 || z[sz+1]!=0); sz += 2){}
nBytes = sz;
}
sqlite3_mutex_enter(db->mutex);
zSql8 = sqlite3Utf16to8(db, zSql, nBytes, SQLITE_UTF16NATIVE);
if( zSql8 ){
rc = sqlite3LockAndPrepare(db, zSql8, -1, saveSqlFlag, 0, ppStmt, &zTail8);
}
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