Don't try to print `optarg' (which will be a NULL pointer) if an unknown

command line option was used, as this leads to a segfault on some
systems.  The unknown option will be printed by getopt(3) anyway.  So,
simply call print_usage() and exit UNKNOWN via the new usage5() instead.


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1590 f882894a-f735-0410-b71e-b25c423dba1c

1 files changed, 1 insertions, 1 deletions

diff --git a/plugins/check_dns.c b/plugins/check_dns.c
index 93af7dc5..454f813b 100644
--- a/plugins/check_dns.c
+++ b/plugins/check_dns.c
@@ -370,7 +370,7 @@ process_arguments (int argc, char **argv)
       critical = optarg;
       break;
     default: /* args not parsable */
-      usage_va(_("Unknown argument - %s"), optarg);
+      usage5();
     }
   }