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Allow pg_terminate_backend() to be used on backends with matching role.

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A similar change was made previously for pg_cancel_backend, so now it
all matches again.

Dan Farina, reviewed by Fujii Masao, Noah Misch, and Jeff Davis,
with slight kibitzing on the doc changes by me.
This commit is contained in:
Robert Haas
2012-06-26 16:16:52 -04:00
parent b79ab00144
commit c60ca19de9
3 changed files with 23 additions and 16 deletions
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12
src/backend/utils/adt/misc.c
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@ -162,18 +162,20 @@ pg_cancel_backend(PG_FUNCTION_ARGS)
}
/*
* Signal to terminate a backend process. Only allowed by superuser.
* Signal to terminate a backend process. This is allowed if you are superuser
* or have the same role as the process being terminated.
*/
Datum
pg_terminate_backend(PG_FUNCTION_ARGS)
{
if (!superuser())
int r = pg_signal_backend(PG_GETARG_INT32(0), SIGTERM);
if (r == SIGNAL_BACKEND_NOPERMISSION)
ereport(ERROR,
(errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
errmsg("must be superuser to terminate other server processes"),
errhint("You can cancel your own processes with pg_cancel_backend().")));
(errmsg("must be superuser or have the same role to terminate backends running in other server processes"))));
PG_RETURN_BOOL(pg_signal_backend(PG_GETARG_INT32(0), SIGTERM) == SIGNAL_BACKEND_SUCCESS);
PG_RETURN_BOOL(r == SIGNAL_BACKEND_SUCCESS);
}
/*