1berry/postgres
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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).
This commit is contained in:
Noah Misch 2015-07-08 20:44:21 -04:00
parent ebe601c4da
commit 458ccbf2b3
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/bin/psql/command.c
View File

@ -1526,7 +1526,8 @@ do_connect(char *dbname, char *user, char *host, char *port)
* 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);
@ -1649,7 +1650,8 @@ 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);