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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2010-03-25 14:45:51 +0000 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2010-03-25 14:45:51 +0000 |
| commit | d07f5947058eae0433c0a08e84711b3d32a84f4d (patch) | |
| tree | e3d147a06950b53da6422f0bfa652088efb11b63 /src/backend/commands/user.c | |
| parent | 75d4be8ddd259124d3009e3f38185137dcd35943 (diff) | |
| download | postgresql-d07f5947058eae0433c0a08e84711b3d32a84f4d.tar.gz postgresql-d07f5947058eae0433c0a08e84711b3d32a84f4d.zip | |
Prevent ALTER USER f RESET ALL from removing the settings that were put there
by a superuser -- "ALTER USER f RESET setting" already disallows removing such a
setting.
Apply the same treatment to ALTER DATABASE d RESET ALL when run by a database
owner that's not superuser.
Diffstat (limited to 'src/backend/commands/user.c')
| -rw-r--r-- | src/backend/commands/user.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/backend/commands/user.c b/src/backend/commands/user.c index c69956d41c9..9ffb2fbf456 100644 --- a/src/backend/commands/user.c +++ b/src/backend/commands/user.c @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.147.4.1 2005/10/26 13:43:28 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/commands/user.c,v 1.147.4.2 2010/03/25 14:45:51 alvherre Exp $ * *------------------------------------------------------------------------- */ @@ -1022,8 +1022,30 @@ AlterUserSet(AlterUserSetStmt *stmt) repl_repl[Anum_pg_shadow_useconfig - 1] = 'r'; if (strcmp(stmt->variable, "all") == 0 && valuestr == NULL) { - /* RESET ALL */ - repl_null[Anum_pg_shadow_useconfig - 1] = 'n'; + ArrayType *new = NULL; + Datum datum; + bool isnull; + + /* + * in RESET ALL, request GUC to reset the settings array; if none + * left, we can set useconfig to null; otherwise use the returned + * array + */ + datum = SysCacheGetAttr(SHADOWNAME, oldtuple, + Anum_pg_shadow_useconfig, &isnull); + if (!isnull) + new = GUCArrayReset(DatumGetArrayTypeP(datum)); + if (new) + { + repl_val[Anum_pg_shadow_useconfig - 1] = PointerGetDatum(new); + repl_repl[Anum_pg_shadow_useconfig - 1] = 'r'; + repl_null[Anum_pg_shadow_useconfig - 1] = ' '; + } + else + { + repl_null[Anum_pg_shadow_useconfig - 1] = 'n'; + repl_val[Anum_pg_shadow_useconfig - 1] = (Datum) 0; + } } else { |