diff options
Diffstat (limited to 'src/backend/utils/init/miscinit.c')
| -rw-r--r-- | src/backend/utils/init/miscinit.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c index 33b9e11203e..a07eae51297 100644 --- a/src/backend/utils/init/miscinit.c +++ b/src/backend/utils/init/miscinit.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.65 2001/04/16 02:42:01 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/init/miscinit.c,v 1.66 2001/05/08 21:06:43 petere Exp $ * *------------------------------------------------------------------------- */ @@ -354,6 +354,7 @@ convertstr(unsigned char *buff, int len, int dest) static Oid CurrentUserId = InvalidOid; static Oid SessionUserId = InvalidOid; +static bool AuthenticatedUserIsSuperuser = false; /* * This function is relevant for all privilege checks. @@ -397,7 +398,7 @@ SetSessionUserId(Oid newid) void -SetSessionUserIdFromUserName(const char *username) +InitializeSessionUserId(const char *username) { HeapTuple userTup; @@ -407,6 +408,9 @@ SetSessionUserIdFromUserName(const char *username) */ AssertState(!IsBootstrapProcessingMode()); + /* call only once */ + AssertState(!OidIsValid(SessionUserId)); + userTup = SearchSysCache(SHADOWNAME, PointerGetDatum(username), 0, 0, 0); @@ -415,6 +419,29 @@ SetSessionUserIdFromUserName(const char *username) SetSessionUserId(((Form_pg_shadow) GETSTRUCT(userTup))->usesysid); + AuthenticatedUserIsSuperuser = ((Form_pg_shadow) GETSTRUCT(userTup))->usesuper; + + ReleaseSysCache(userTup); +} + + + +void SetSessionAuthorization(const char * username) +{ + HeapTuple userTup; + + if (!AuthenticatedUserIsSuperuser) + elog(ERROR, "permission denied"); + + userTup = SearchSysCache(SHADOWNAME, + PointerGetDatum(username), + 0, 0, 0); + if (!HeapTupleIsValid(userTup)) + elog(ERROR, "user \"%s\" does not exist", username); + + SetSessionUserId(((Form_pg_shadow) GETSTRUCT(userTup))->usesysid); + SetUserId(((Form_pg_shadow) GETSTRUCT(userTup))->usesysid); + ReleaseSysCache(userTup); } |