buf oflow

1 files changed, 4 insertions, 3 deletions

diff --git a/src/lib/libc/net/getnetnamadr.c b/src/lib/libc/net/getnetnamadr.c
index 96e3c268c5..59a4d09aec 100644
--- a/src/lib/libc/net/getnetnamadr.c
+++ b/src/lib/libc/net/getnetnamadr.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: getnetnamadr.c,v 1.6 1997/04/13 20:38:07 downsj Exp $ */
+/*      $OpenBSD: getnetnamadr.c,v 1.7 1997/04/14 04:25:02 deraadt Exp $        */
 
 /*
  * Copyright (c) 1997, Jason Downs.  All rights reserved.
@@ -77,7 +77,7 @@ static char sccsid[] = "@(#)getnetbyaddr.c	8.1 (Berkeley) 6/4/93";
 static char sccsid_[] = "from getnetnamadr.c    1.4 (Coimbra) 93/06/03";
 static char rcsid[] = "$From: getnetnamadr.c,v 8.7 1996/08/05 08:31:35 vixie Exp $";
 #else
-static char rcsid[] = "$OpenBSD: getnetnamadr.c,v 1.6 1997/04/13 20:38:07 downsj Exp $";
+static char rcsid[] = "$OpenBSD: getnetnamadr.c,v 1.7 1997/04/14 04:25:02 deraadt Exp $";
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -352,7 +352,8 @@ getnetbyname(net)
                         break;
 #endif  /* YP */
                 case 'b':
-                        strcpy(&qbuf[0], net);
+                        strncpy(qbuf, net, sizeof qbuf-1);
+                        qbuf[sizeof qbuf-1] = '\0';
                         anslen = res_search(qbuf, C_IN, T_PTR, (u_char *)&buf,
                             sizeof(buf));
                         if (anslen < 0) {