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| author | Noah Misch <noah@leadboat.com> | 2015-07-08 20:44:21 -0400 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2015-07-08 20:44:25 -0400 |
| commit | fb990ce6c7d99d329843e5d70d4cdaf8d0825b38 (patch) | |
| tree | ee0c0f8830fb21be75b2fe2fa2b252646ecf9382 /src | |
| parent | 080c4dab3d9575449b81604051b160597cfd55c3 (diff) | |
| download | postgresql-fb990ce6c7d99d329843e5d70d4cdaf8d0825b38.tar.gz postgresql-fb990ce6c7d99d329843e5d70d4cdaf8d0825b38.zip | |
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).
Diffstat (limited to 'src')
| -rw-r--r-- | src/bin/psql/command.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/bin/psql/command.c b/src/bin/psql/command.c index 38253fa0988..467e34b1ffc 100644 --- a/src/bin/psql/command.c +++ b/src/bin/psql/command.c @@ -1641,7 +1641,8 @@ do_connect(char *dbname, char *user, char *host, char *port) * positional syntax. */ keep_password = - ((strcmp(user, PQuser(o_conn)) == 0) && + (o_conn && + (strcmp(user, PQuser(o_conn)) == 0) && (!host || strcmp(host, PQhost(o_conn)) == 0) && (strcmp(port, PQport(o_conn)) == 0) && !has_connection_string); @@ -1768,7 +1769,8 @@ do_connect(char *dbname, char *user, char *host, char *port) /* Tell the user about the new connection */ if (!pset.quiet) { - if (param_is_newly_set(PQhost(o_conn), PQhost(pset.db)) || + if (!o_conn || + param_is_newly_set(PQhost(o_conn), PQhost(pset.db)) || param_is_newly_set(PQport(o_conn), PQport(pset.db))) { char *host = PQhost(pset.db); |