Thread: pgsql: Fix null pointer dereference in "\c" psql command.

Fix null pointer dereference in "\c" psql command.

The psql crash happened when no current connection existed.  (The second
new check is optional given today's undocumented NULL argument handling
in PQhost() etc.)  Back-patch to 9.0 (all supported versions).

Branch
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REL9_4_STABLE

Details
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http://git.postgresql.org/pg/commitdiff/eb1525e8968e64c7ec31701fa02c6da999b58d1a

Modified Files
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src/bin/psql/command.c |    6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)