[sql] Import SQLite 3.17.0.

third_party/sqlite/src/src/auth.c

 /*
 ** 2003 January 11
 **
 ** The author disclaims copyright to this source code.  In place of
 ** a legal notice, here is a blessing:
 **
 **    May you do good and not evil.
 **    May you find forgiveness for yourself and forgive others.
 **    May you share freely, never taking more than you give.
 **
@@ skipping 89 matching lines @@
 ** If SQLITE_IGNORE is returned and pExpr is not NULL, then pExpr is changed
 ** to an SQL NULL expression. Otherwise, if pExpr is NULL, then SQLITE_IGNORE
 ** is treated as SQLITE_DENY. In this case an error is left in pParse.
 */
 int sqlite3AuthReadCol(
   Parse *pParse,                  /* The parser context */
   const char *zTab,               /* Table name */
   const char *zCol,               /* Column name */
   int iDb                         /* Index of containing database. */
 ){
-  sqlite3 *db = pParse->db;       /* Database handle */
-  char *zDb = db->aDb[iDb].zName; /* Name of attached database */
-  int rc;                         /* Auth callback return code */
+  sqlite3 *db = pParse->db;          /* Database handle */
+  char *zDb = db->aDb[iDb].zDbSName; /* Schema name of attached database */
+  int rc;                            /* Auth callback return code */
 
+  if( db->init.busy ) return SQLITE_OK;
   rc = db->xAuth(db->pAuthArg, SQLITE_READ, zTab,zCol,zDb,pParse->zAuthContext
 #ifdef SQLITE_USER_AUTHENTICATION
                  ,db->auth.zAuthUser
 #endif
                 );
   if( rc==SQLITE_DENY ){
     if( db->nDb>2 || iDb!=0 ){
       sqlite3ErrorMsg(pParse, "access to %s.%s.%s is prohibited",zDb,zTab,zCol);
     }else{
       sqlite3ErrorMsg(pParse, "access to %s.%s is prohibited", zTab, zCol);
@@ skipping 127 matching lines @@
 ** by sqlite3AuthContextPush
 */
 void sqlite3AuthContextPop(AuthContext *pContext){
   if( pContext->pParse ){
     pContext->pParse->zAuthContext = pContext->zAuthContext;
     pContext->pParse = 0;
   }
 }
 
 #endif /* SQLITE_OMIT_AUTHORIZATION */