[src/trunk]: src/sbin/ping6 be more picky about numeric arg parsing. sync w/...

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

details:   https://anonhg.NetBSD.org/src/rev/da2b7af814ff
branches:  trunk
changeset: 538668:da2b7af814ff
user:      itojun <itojun%NetBSD.org@localhost>
date:      Fri Oct 25 02:20:37 2002 +0000

description:
be more picky about numeric arg parsing.  sync w/kame

diffstat:

 sbin/ping6/ping6.c |  17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diffs (46 lines):

diff -r 4eadbdf0fad6 -r da2b7af814ff sbin/ping6/ping6.c
--- a/sbin/ping6/ping6.c        Fri Oct 25 01:45:37 2002 +0000
+++ b/sbin/ping6/ping6.c        Fri Oct 25 02:20:37 2002 +0000
@@ -1,5 +1,5 @@
-/*     $NetBSD: ping6.c,v 1.50 2002/09/23 12:52:30 itojun Exp $        */
-/*     $KAME: ping6.c,v 1.160 2002/09/08 14:28:18 itojun Exp $ */
+/*     $NetBSD: ping6.c,v 1.51 2002/10/25 02:20:37 itojun Exp $        */
+/*     $KAME: ping6.c,v 1.163 2002/10/25 02:19:06 itojun Exp $ */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -81,7 +81,7 @@
 #else
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: ping6.c,v 1.50 2002/09/23 12:52:30 itojun Exp $");
+__RCSID("$NetBSD: ping6.c,v 1.51 2002/10/25 02:20:37 itojun Exp $");
 #endif
 #endif
 
@@ -300,7 +300,10 @@
        char *e, *target, *ifname = NULL, *gateway = NULL;
        int ip6optlen = 0;
        struct cmsghdr *scmsgp = NULL;
+#if defined(SO_SNDBUF) && defined(SO_RCVBUF)
+       u_long lsockbufsize;
        int sockbufsize = 0;
+#endif
        int usepktinfo = 0;
        struct in6_pktinfo *pktinfo = NULL;
 #ifdef USE_RFC2292BIS
@@ -380,7 +383,13 @@
                }
                case 'b':
 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
-                       sockbufsize = atoi(optarg);
+                       errno = 0;
+                       e = NULL;
+                       lsockbufsize = strtoul(optarg, &e, 10);
+                       sockbufsize = lsockbufsize;
+                       if (errno || !*optarg || *e ||
+                           sockbufsize != lsockbufsize)
+                               errx(1, "invalid socket buffer size");
 #else
                        errx(1,
 "-b option ignored: SO_SNDBUF/SO_RCVBUF socket options not supported");