[sql] Import reference version of SQLite 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/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 55 matching lines @@
 **
 ** Setting the auth function to NULL disables this hook.  The default
 ** setting of the auth function is NULL.
 */
 int sqlite3_set_authorizer(
   sqlite3 *db,
   int (*xAuth)(void*,int,const char*,const char*,const char*,const char*),
   void *pArg
 ){
   sqlite3_mutex_enter(db->mutex);
-  db->xAuth = xAuth;
+  db->xAuth = (sqlite3_xauth)xAuth;
   db->pAuthArg = pArg;
   sqlite3ExpirePreparedStatements(db);
   sqlite3_mutex_leave(db->mutex);
   return SQLITE_OK;
 }
 
 /*
 ** Write an error message into pParse->zErrMsg that explains that the
 ** user-supplied authorization function returned an illegal value.
 */
@@ skipping 14 matching lines @@
 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 */
 
-  rc = db->xAuth(db->pAuthArg, SQLITE_READ, zTab,zCol,zDb,pParse->zAuthContext);
+  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);
     }
     pParse->rc = SQLITE_AUTH;
   }else if( rc!=SQLITE_IGNORE && rc!=SQLITE_OK ){
     sqliteAuthBadReturnCode(pParse);
   }
@@ skipping 79 matching lines @@
   /* Don't do any authorization checks if the database is initialising
   ** or if the parser is being invoked from within sqlite3_declare_vtab.
   */
   if( db->init.busy || IN_DECLARE_VTAB ){
     return SQLITE_OK;
   }
 
   if( db->xAuth==0 ){
     return SQLITE_OK;
   }
-  rc = db->xAuth(db->pAuthArg, code, zArg1, zArg2, zArg3, pParse->zAuthContext);
+  rc = db->xAuth(db->pAuthArg, code, zArg1, zArg2, zArg3, pParse->zAuthContext
+#ifdef SQLITE_USER_AUTHENTICATION
+                 ,db->auth.zAuthUser
+#endif
+                );
   if( rc==SQLITE_DENY ){
     sqlite3ErrorMsg(pParse, "not authorized");
     pParse->rc = SQLITE_AUTH;
   }else if( rc!=SQLITE_OK && rc!=SQLITE_IGNORE ){
     rc = SQLITE_DENY;
     sqliteAuthBadReturnCode(pParse);
   }
   return rc;
 }
 
@@ skipping 18 matching lines @@
 ** by sqlite3AuthContextPush
 */
 void sqlite3AuthContextPop(AuthContext *pContext){
   if( pContext->pParse ){
     pContext->pParse->zAuthContext = pContext->zAuthContext;
     pContext->pParse = 0;
   }
 }
 
 #endif /* SQLITE_OMIT_AUTHORIZATION */