From 92a0e6dadffd920f5174d4a1407a7febb4b19dd8 Mon Sep 17 00:00:00 2001
From: shin <shin@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Mon, 7 Feb 2000 00:52:49 +0000
Subject: [PATCH] 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>


git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@57016 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
---
 telnet/commands.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/telnet/commands.c b/telnet/commands.c
index 8380c29..bd671f8 100644
--- a/telnet/commands.c
+++ b/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;