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authorHeikki Linnakangas <heikki.linnakangas@iki.fi>2013-01-15 18:54:03 +0200
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>2013-01-15 19:23:47 +0200
commitb04ce529fd38b1d00492d03acf896f9293b6fb28 (patch)
tree8a5312e1e3f84cb5c6f107efa102173835279deb
parent7ac5760fa283bc090c25e4ea495a0d2bb41db7b5 (diff)
downloadpostgresql-b04ce529fd38b1d00492d03acf896f9293b6fb28.tar.gz
postgresql-b04ce529fd38b1d00492d03acf896f9293b6fb28.zip
Don't pass NULL to fprintf, if not currently connected to a database.
Backpatch all the way to 8.3. Fixes bug #7811, per report and diagnosis by Meng Qingzhong.
-rw-r--r--src/bin/psql/help.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/bin/psql/help.c b/src/bin/psql/help.c
index 1070bc521e0..ef36583db8b 100644
--- a/src/bin/psql/help.c
+++ b/src/bin/psql/help.c
@@ -161,6 +161,11 @@ void
slashUsage(unsigned short int pager)
{
FILE *output;
+ char *currdb;
+
+ currdb = PQdb(pset.db);
+ if (currdb == NULL)
+ currdb = _("none");
output = PageOutput(94, pager);
@@ -254,7 +259,7 @@ slashUsage(unsigned short int pager)
fprintf(output, _("Connection\n"));
fprintf(output, _(" \\c[onnect] [DBNAME|- USER|- HOST|- PORT|-]\n"
" connect to new database (currently \"%s\")\n"),
- PQdb(pset.db));
+ currdb);
fprintf(output, _(" \\encoding [ENCODING] show or set client encoding\n"));
fprintf(output, _(" \\password [USERNAME] securely change the password for a user\n"));
fprintf(output, _(" \\conninfo display information about current connection\n"));