Fix telnet core dump at invalid service name specified.

Added an error check to avoid it.

Approved by: jkh

Submitted by: Robert Muir <rmuir@gibralter.net>

1 files changed, 6 insertions, 0 deletions

diff --git a/crypto/telnet/telnet/commands.c b/crypto/telnet/telnet/commands.c
index 8380c29..bd671f8 100644
--- a/crypto/telnet/telnet/commands.c
+++ b/crypto/telnet/telnet/commands.c
@@ -2475,6 +2475,12 @@ tn(argc, argv)
 	  (void) strncpy(_hostname, hostp, sizeof(_hostname) - 1);
 	_hostname[sizeof(_hostname)-1] = '\0';
 	hostname = _hostname;
+    } else if (error != 0) {
+	    fprintf(stderr, "%s: %s\n", hostname, gai_strerror(error));
+	    if (error == EAI_SYSTEM)
+	        fprintf(stderr, "%s: %s\n", hostname, strerror(errno));
+	    setuid(getuid());
+	    return 0;
     }
     if (srcroute != 0) {
 	srp = 0;