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Add the SQLITE_FTS3_MAX_EXPR_DEPTH compile time option.

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FossilOrigin-Name: 24fc9d4438a5615dd20af5419456166df83a72ea
This commit is contained in:
dan
2013-06-11 14:22:11 +00:00
parent f710305f87
commit 5f0b33c2cb
4 changed files with 26 additions and 14 deletions
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10
ext/fts3/fts3_expr.c
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@ -1000,17 +1000,16 @@ int sqlite3Fts3ExprParse(
Fts3Expr **ppExpr, /* OUT: Parsed query structure */
char **pzErr /* OUT: Error message (sqlite3_malloc) */
){
static const int MAX_EXPR_DEPTH = 12;
int rc = fts3ExprParseUnbalanced(
pTokenizer, iLangid, azCol, bFts4, nCol, iDefaultCol, z, n, ppExpr
);
/* Rebalance the expression. And check that its depth does not exceed
** MAX_EXPR_DEPTH. */
** SQLITE_FTS3_MAX_EXPR_DEPTH. */
if( rc==SQLITE_OK && *ppExpr ){
rc = fts3ExprBalance(ppExpr, MAX_EXPR_DEPTH);
rc = fts3ExprBalance(ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
if( rc==SQLITE_OK ){
rc = fts3ExprCheckDepth(*ppExpr, MAX_EXPR_DEPTH);
rc = fts3ExprCheckDepth(*ppExpr, SQLITE_FTS3_MAX_EXPR_DEPTH);
}
}
@ -1019,7 +1018,8 @@ int sqlite3Fts3ExprParse(
*ppExpr = 0;
if( rc==SQLITE_TOOBIG ){
*pzErr = sqlite3_mprintf(
"FTS expression tree is too large (maximum depth %d)", MAX_EXPR_DEPTH
"FTS expression tree is too large (maximum depth %d)",
SQLITE_FTS3_MAX_EXPR_DEPTH
);
rc = SQLITE_ERROR;
}else if( rc==SQLITE_ERROR ){