Fix a buffer overflow problem (not a security issue). Thanks to Joe.

diff --git a/client/dhclient.c b/client/dhclient.c
index 9cd889946ca8874646b6a9e57fb9cd0215cf8223..91da4d2a378949c01743dc1956e0f2cebc20160c 100644 (file)
--- a/client/dhclient.c
+++ b/client/dhclient.c
@@ -41,7 +41,7 @@
 
 #ifndef lint
 static char ocopyright[] =
-"$Id: dhclient.c,v 1.103 2000/05/30 21:17:04 mellon Exp $ Copyright (c) 1995, 1996, 1997, 1998, 1999 Internet Software Consortium.  All rights reserved.\n";
+"$Id: dhclient.c,v 1.104 2000/05/30 21:43:42 mellon Exp $ Copyright (c) 1995, 1996, 1997, 1998, 1999 Internet Software Consortium.  All rights reserved.\n";
 #endif /* not lint */
 
 #include "dhcpd.h"
@@ -179,6 +179,9 @@ int main (argc, argv, envp)
                    if (status != ISC_R_SUCCESS)
                        log_fatal ("Can't record interface %s:%s",
                                   argv [i], isc_result_totext (status));
+                   if (strlen (argv [i]) > sizeof tmp -> name)
+                           log_fatal ("%s: interface name too long (max %d)",
+                                      argv [i], strlen (argv [i]));
                    strcpy (tmp -> name, argv [i]);
                    if (interfaces) {
                            interface_reference (&tmp -> next,