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Check the results of argument decomposition in octets to prevent 

garbage being sent to name servers.
This commit is contained in:
pk 1998-12-05 13:17:55 +00:00
parent 66bc493d73
commit d92652f4ae
1 changed files with 4 additions and 2 deletions
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6
lib/libc/net/getnetnamadr.c
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@ -1,4 +1,4 @@
/* $NetBSD: getnetnamadr.c,v 1.6 1998/11/13 15:46:53 christos Exp $ */
/* $NetBSD: getnetnamadr.c,v 1.7 1998/12/05 13:17:55 pk Exp $ */
/* Copyright (c) 1993 Carlos Leandro and Rui Salgueiro
* Dep. Matematica Universidade de Coimbra, Portugal, Europe
@ -47,7 +47,7 @@ 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[] = "Id: getnetnamadr.c,v 8.8 1997/06/01 20:34:37 vixie Exp ";
#else
__RCSID("$NetBSD: getnetnamadr.c,v 1.6 1998/11/13 15:46:53 christos Exp $");
__RCSID("$NetBSD: getnetnamadr.c,v 1.7 1998/12/05 13:17:55 pk Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -248,6 +248,8 @@ getnetbyaddr(net, net_type)
for (nn = 4, net2 = net; net2; net2 >>= 8)
netbr[--nn] = (unsigned int)(net2 & 0xff);
switch (nn) {
default:
return (NULL);
case 3: /* Class A */
sprintf(qbuf, "0.0.0.%u.in-addr.arpa",
netbr[3]);