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Fix additional cases of possible signed integer overflow, especially with

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regard to negation.

FossilOrigin-Name: 2d5800bd8cfc7d7f5578a71b1aeaa74b2ec4b372
This commit is contained in:
drh
2011-03-08 02:38:28 +00:00
parent 2327275b8c
commit d50ffc416f
9 changed files with 45 additions and 37 deletions
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6
src/pragma.c
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@@ -384,8 +384,7 @@ void sqlite3Pragma(
sqlite3VdbeChangeP1(v, addr+1, iDb);
sqlite3VdbeChangeP1(v, addr+6, SQLITE_DEFAULT_CACHE_SIZE);
}else{
int size = sqlite3Atoi(zRight);
if( size<0 ) size = -size;
int size = sqlite3AbsInt32(sqlite3Atoi(zRight));
sqlite3BeginWriteOperation(pParse, 0, iDb);
sqlite3VdbeAddOp2(v, OP_Integer, size, 1);
sqlite3VdbeAddOp3(v, OP_SetCookie, iDb, BTREE_DEFAULT_CACHE_SIZE, 1);
@@ -694,8 +693,7 @@ void sqlite3Pragma(
if( !zRight ){
returnSingleInt(pParse, "cache_size", pDb->pSchema->cache_size);
}else{
int size = sqlite3Atoi(zRight);
if( size<0 ) size = -size;
int size = sqlite3AbsInt32(sqlite3Atoi(zRight));
pDb->pSchema->cache_size = size;
sqlite3BtreeSetCacheSize(pDb->pBt, pDb->pSchema->cache_size);
}