[src/trunk]: src/lib/libc/net use snprintf. don't duplicate MAXDNAME (use si...

[itojun <itojun%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5b90bd71e6a7
branches:  trunk
changeset: 535364:5b90bd71e6a7
user:      itojun <itojun%NetBSD.org@localhost>
date:      Fri Aug 16 11:53:19 2002 +0000

description:
use snprintf.  don't duplicate MAXDNAME (use sizeof).

diffstat:

 lib/libc/net/res_query.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (32 lines):

diff -r b7611a1b81b4 -r 5b90bd71e6a7 lib/libc/net/res_query.c
--- a/lib/libc/net/res_query.c  Fri Aug 16 11:49:57 2002 +0000
+++ b/lib/libc/net/res_query.c  Fri Aug 16 11:53:19 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: res_query.c,v 1.34 2002/08/02 07:50:35 itojun Exp $    */
+/*     $NetBSD: res_query.c,v 1.35 2002/08/16 11:53:19 itojun Exp $    */
 
 /*-
  * Copyright (c) 1988, 1993
@@ -59,7 +59,7 @@
 static char sccsid[] = "@(#)res_query.c        8.1 (Berkeley) 6/4/93";
 static char rcsid[] = "Id: res_query.c,v 8.10 1997/06/01 20:34:37 vixie Exp ";
 #else
-__RCSID("$NetBSD: res_query.c,v 1.34 2002/08/02 07:50:35 itojun Exp $");
+__RCSID("$NetBSD: res_query.c,v 1.35 2002/08/16 11:53:19 itojun Exp $");
 #endif
 #endif /* LIBC_SCCS and not lint */
 
@@ -374,11 +374,11 @@
        } else {
                n = strlen(name);
                d = strlen(domain);
-               if (n + d + 1 >= MAXDNAME) {
+               if (n + 1 + d + 1 > sizeof(nbuf)) {
                        h_errno = NO_RECOVERY;
                        return (-1);
                }
-               sprintf(nbuf, "%s.%s", name, domain);
+               snprintf(nbuf, sizeof(nbuf), "%s.%s", name, domain);
        }
        return (res_query(longname, class, type, answer, anslen));
 }