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Turn on defensive mode for running test scripts. Does not yet work.

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FossilOrigin-Name: 1c1d24edbb732f2a2002a741c7a7afdd010b67e1b5e6d90ff36c6428897e7612
This commit is contained in:
drh
2018-11-06 15:57:59 +00:00
parent fc25721c9e
commit aef15e74c8
5 changed files with 19 additions and 15 deletions
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14
src/delete.c
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@@ -50,6 +50,7 @@ Table *sqlite3SrcListLookup(Parse *pParse, SrcList *pSrc){
** writable return 0;
*/
int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
sqlite3 *db = pParse->db;
/* A table is not writable under the following circumstances:
**
** 1) It is a virtual table and no implementation of the xUpdate method
@@ -57,19 +58,20 @@ int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
** 2) It is a system table (i.e. sqlite_master), this call is not
** part of a nested parse and writable_schema pragma has not
** been specified.
** 3) The table is a shadow table and the current sqlite3_prepare()
** is for a top-level SQL statement, not a nested SQL statement
** issued by a virtual table implementation.
** 3) The table is a shadow table, the database connection is in
** defensive mode, and the current sqlite3_prepare()
** is for a top-level SQL statement.
**
** In either case leave an error message in pParse and return non-zero.
*/
if( ( IsVirtual(pTab)
&& sqlite3GetVTable(pParse->db, pTab)->pMod->pModule->xUpdate==0 )
&& sqlite3GetVTable(db, pTab)->pMod->pModule->xUpdate==0 )
|| ( (pTab->tabFlags & TF_Readonly)!=0
&& sqlite3WritableSchema(pParse->db)==0
&& sqlite3WritableSchema(db)==0
&& pParse->nested==0)
|| ( (pTab->tabFlags & TF_Shadow)!=0
&& pParse->db->nVdbeExec==0)
&& (db->flags & SQLITE_Defensive)!=0
&& db->nVdbeExec==0)
){
sqlite3ErrorMsg(pParse, "table %s may not be modified", pTab->zName);
return 1;