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Do not allow direct access to internal-use SQL functions such as

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sqlite_rename_column() and sqlite3_rename_table() except when the
new SQLITE_TESTCTRL_INTERNAL_FUNCTIONS flag is set.

FossilOrigin-Name: 6e1330545e7b74fe5f1f20751a3425e2788441485fc07fcb7626e448c72027ce
This commit is contained in:
drh
2018-11-26 18:09:15 +00:00
parent 49b269e095
commit eea8eb6d04
18 changed files with 108 additions and 47 deletions
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17
src/alter.c
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@@ -1188,15 +1188,8 @@ static void renameParseCleanup(Parse *pParse){
** into zNew. The name should be quoted if bQuote is true.
**
** This function is used internally by the ALTER TABLE RENAME COLUMN command.
** Though accessible to application code, it is not intended for use by
** applications. The existance of this function, and the way it works,
** is subject to change without notice.
**
** If any of the parameters are out-of-bounds, then simply return NULL.
** An out-of-bounds parameter can only occur when the application calls
** this function directly. The parameters will always be well-formed when
** this routine is invoked by the bytecode for a legitimate ALTER TABLE
** statement.
** It is only accessible to SQL created using sqlite3NestedParse(). It is
** not reachable from ordinary SQL passed into sqlite3_prepare().
*/
static void renameColumnFunc(
sqlite3_context *context,
@@ -1604,9 +1597,9 @@ static void renameTableTest(
*/
void sqlite3AlterFunctions(void){
static FuncDef aAlterTableFuncs[] = {
FUNCTION(sqlite_rename_column, 9, 0, 0, renameColumnFunc),
FUNCTION(sqlite_rename_table, 7, 0, 0, renameTableFunc),
FUNCTION(sqlite_rename_test, 5, 0, 0, renameTableTest),
INTERNAL_FUNCTION(sqlite_rename_column, 9, renameColumnFunc),
INTERNAL_FUNCTION(sqlite_rename_table, 7, renameTableFunc),
INTERNAL_FUNCTION(sqlite_rename_test, 5, renameTableTest),
};
sqlite3InsertBuiltinFuncs(aAlterTableFuncs, ArraySize(aAlterTableFuncs));
}