Handle PQresultErrorField(PG_DIAG_SQLSTATE) returning NULL in streamutil.c.

In ff27db5d I missed that PQresultErrorField() may return NULL if
there's no sqlstate associated with an error.

Spotted-By: Coverity
Reported-By: Michael Paquier
Discussion: CAB7nPqQ3o10SY6NVdU4pjq85GQTN5tbbkq2gnNUh2fBNU3rKyQ@mail.gmail.com
Backpatch: 9.5, like ff27db5d
This commit is contained in:
Andres Freund 2015-08-12 17:35:50 +02:00
parent d25fbf9f3e
commit 7685963eeb
1 changed files with 3 additions and 1 deletions

View File

@ -340,7 +340,9 @@ CreateReplicationSlot(PGconn *conn, const char *slot_name, const char *plugin,
{
const char *sqlstate = PQresultErrorField(res, PG_DIAG_SQLSTATE);
if (slot_exists_ok && strcmp(sqlstate, ERRCODE_DUPLICATE_OBJECT) == 0)
if (slot_exists_ok &&
sqlstate &&
strcmp(sqlstate, ERRCODE_DUPLICATE_OBJECT) == 0)
{
destroyPQExpBuffer(query);
PQclear(res);