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Overview
| Comment: | Avoid fts3 crash on (MATCH '""') expressions. Ticket #3717. (CVS 6343) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 03679857a320517a7b89e5214e948bce9af896a9 |
| User & Date: | danielk1977 2009-03-12 15:43:48 |
Context
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2009-03-13
| ||
| 15:32 | Do not overrun a buffer in the genfkey code (now part of shell.c). Fix for #3722. (CVS 6344) check-in: 943b11fb user: danielk1977 tags: trunk | |
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2009-03-12
| ||
| 15:43 | Avoid fts3 crash on (MATCH '""') expressions. Ticket #3717. (CVS 6343) check-in: 03679857 user: danielk1977 tags: trunk | |
| 14:43 | Make calls to sqlite3BtreeRollbackStmt() no-ops when passed a Btree* handle that does not have an open statement transaction. Ticket #3718. (CVS 6342) check-in: a1bb1aef user: danielk1977 tags: trunk | |
Changes
Changes to ext/fts3/fts3_expr.c.
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zTemp = fts3ReallocOrFree(zTemp, nTemp + nToken);
if( !p || !zTemp ){
goto no_mem;
}
if( ii==0 ){
memset(p, 0, nByte);
p->pPhrase = (Fts3Phrase *)&p[1];
p->eType = FTSQUERY_PHRASE;
p->pPhrase->iColumn = pParse->iDefaultCol;
}
p->pPhrase = (Fts3Phrase *)&p[1];
p->pPhrase->nToken = ii+1;
p->pPhrase->aToken[ii].n = nToken;
memcpy(&zTemp[nTemp], zToken, nToken);
nTemp += nToken;
if( iEnd<nInput && zInput[iEnd]=='*' ){
................................................................................
}
if( rc==SQLITE_DONE ){
int jj;
char *zNew;
int nNew = 0;
int nByte = sizeof(Fts3Expr) + sizeof(Fts3Phrase);
nByte += (p->pPhrase->nToken-1) * sizeof(struct PhraseToken);
p = fts3ReallocOrFree(p, nByte + nTemp);
if( !p ){
goto no_mem;
}
p->pPhrase = (Fts3Phrase *)&p[1];
zNew = &(((char *)p)[nByte]);
memcpy(zNew, zTemp, nTemp);
for(jj=0; jj<p->pPhrase->nToken; jj++){
p->pPhrase->aToken[jj].z = &zNew[nNew];
nNew += p->pPhrase->aToken[jj].n;
}
sqlite3_free(zTemp);
rc = SQLITE_OK;
}
*ppExpr = p;
return rc;
no_mem:
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zTemp = fts3ReallocOrFree(zTemp, nTemp + nToken);
if( !p || !zTemp ){
goto no_mem;
}
if( ii==0 ){
memset(p, 0, nByte);
p->pPhrase = (Fts3Phrase *)&p[1];
}
p->pPhrase = (Fts3Phrase *)&p[1];
p->pPhrase->nToken = ii+1;
p->pPhrase->aToken[ii].n = nToken;
memcpy(&zTemp[nTemp], zToken, nToken);
nTemp += nToken;
if( iEnd<nInput && zInput[iEnd]=='*' ){
................................................................................
}
if( rc==SQLITE_DONE ){
int jj;
char *zNew;
int nNew = 0;
int nByte = sizeof(Fts3Expr) + sizeof(Fts3Phrase);
nByte += (p?(p->pPhrase->nToken-1):0) * sizeof(struct PhraseToken);
p = fts3ReallocOrFree(p, nByte + nTemp);
if( !p ){
goto no_mem;
}
if( zTemp ){
zNew = &(((char *)p)[nByte]);
memcpy(zNew, zTemp, nTemp);
}else{
memset(p, 0, nByte+nTemp);
}
p->pPhrase = (Fts3Phrase *)&p[1];
for(jj=0; jj<p->pPhrase->nToken; jj++){
p->pPhrase->aToken[jj].z = &zNew[nNew];
nNew += p->pPhrase->aToken[jj].n;
}
sqlite3_free(zTemp);
p->eType = FTSQUERY_PHRASE;
p->pPhrase->iColumn = pParse->iDefaultCol;
rc = SQLITE_OK;
}
*ppExpr = p;
return rc;
no_mem:
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Changes to test/fts3expr.test.
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #************************************************************************* # This file implements regression tests for SQLite library. The # focus of this script is testing the FTS3 module. # # $Id: fts3expr.test,v 1.6 2009/01/01 14:06:13 danielk1977 Exp $ # set testdir [file dirname $argv0] source $testdir/tester.tcl # If SQLITE_ENABLE_FTS3 is defined, omit this file. ifcapable !fts3 { ................................................................................ 13 "((((((one two OR four five)))))) NOT three" {3 11 19 24 25 26 27} } { do_test fts3expr-6.$id { execsql { SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid } } $res } set sqlite_fts3_enable_parentheses 0 finish_test |
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #************************************************************************* # This file implements regression tests for SQLite library. The # focus of this script is testing the FTS3 module. # # $Id: fts3expr.test,v 1.7 2009/03/12 15:43:48 danielk1977 Exp $ # set testdir [file dirname $argv0] source $testdir/tester.tcl # If SQLITE_ENABLE_FTS3 is defined, omit this file. ifcapable !fts3 { ................................................................................ 13 "((((((one two OR four five)))))) NOT three" {3 11 19 24 25 26 27} } { do_test fts3expr-6.$id { execsql { SELECT rowid FROM t1 WHERE t1 MATCH $expr ORDER BY rowid } } $res } do_test fts3expr-7.1 { execsql { CREATE VIRTUAL TABLE test USING fts3 (keyword); INSERT INTO test VALUES ('abc'); SELECT * FROM test WHERE keyword MATCH '""'; } } {} set sqlite_fts3_enable_parentheses 0 finish_test |