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bark if too-big-masklen on "-network prefix/masklen".

This commit is contained in:
itojun 2000-06-10 04:40:17 +00:00
parent 4c191e1d58
commit 739ca10641
1 changed files with 13 additions and 3 deletions
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16
usr.sbin/mountd/mountd.c
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@ -1,4 +1,4 @@
/* $NetBSD: mountd.c,v 1.64 2000/06/09 00:03:32 fvdl Exp $ */
/* $NetBSD: mountd.c,v 1.65 2000/06/10 04:40:17 itojun Exp $ */
/*
* Copyright (c) 1989, 1993
@ -51,7 +51,7 @@ __COPYRIGHT("@(#) Copyright (c) 1989, 1993\n\
#if 0
static char sccsid[] = "@(#)mountd.c 8.15 (Berkeley) 5/1/95";
#else
__RCSID("$NetBSD: mountd.c,v 1.64 2000/06/09 00:03:32 fvdl Exp $");
__RCSID("$NetBSD: mountd.c,v 1.65 2000/06/10 04:40:17 itojun Exp $");
#endif
#endif /* not lint */
@ -1453,6 +1453,9 @@ allones(struct sockaddr_storage *ssp, int bitlen)
bytelen = bitlen / 8;
bitsleft = bitlen % 8;
if (bytelen > zerolen)
return -1;
for (i = 0; i < bytelen; i++)
*p++ = 0xff;
@ -1966,7 +1969,14 @@ do_mount(line, lineno, ep, grp, exflags, anoncrp, dirp, dirplen, fsb)
memset(&ss, 0, sizeof ss);
ss.ss_family = args.ua.export.ex_addr->sa_family;
ss.ss_len = args.ua.export.ex_addr->sa_len;
allones(&ss, grp->gr_ptr.gt_net.nt_len);
if (allones(&ss, grp->gr_ptr.gt_net.nt_len) != 0) {
syslog(LOG_ERR,
"\"%s\", line %ld: Bad network flag",
line, (unsigned long)lineno);
if (cp)
*cp = savedc;
return (1);
}
args.ua.export.ex_mask = (struct sockaddr *)&ss;
args.ua.export.ex_masklen = ss.ss_len;
break;