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fix for sockaddr's that are bigger than standard sockaddr's (e.g., iso)

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This commit is contained in:
chopps 1999-04-01 08:14:11 +00:00
parent 20a608fe88
commit 3357b52e9b
1 changed files with 42 additions and 11 deletions
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53
usr.bin/netstat/route.c
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@ -1,4 +1,4 @@
/* $NetBSD: route.c,v 1.34 1999/01/15 19:06:25 kml Exp $ */
/* $NetBSD: route.c,v 1.35 1999/04/01 08:14:11 chopps Exp $ */
/*
* Copyright (c) 1983, 1988, 1993
@ -38,7 +38,7 @@
#if 0
static char sccsid[] = "from: @(#)route.c 8.3 (Berkeley) 3/9/94";
#else
__RCSID("$NetBSD: route.c,v 1.34 1999/01/15 19:06:25 kml Exp $");
__RCSID("$NetBSD: route.c,v 1.35 1999/04/01 08:14:11 chopps Exp $");
#endif
#endif /* not lint */
@ -494,22 +494,53 @@ p_flags(f, format)
printf(format, name);
}
static struct sockaddr *sockdup __P((struct sockaddr *));
/*
* copy a sockaddr into an allocated region, allocate at least sockaddr
* bytes and zero unused
*/
static struct sockaddr *
sockdup(sp)
struct sockaddr *sp;
{
struct sockaddr *dp;
int len, salen;
if (sp == 0)
salen = 0;
else
salen = sp->sa_len;
if (salen < sizeof(struct sockaddr))
len = sizeof(struct sockaddr);
else
len = sp->sa_len;
if ((dp = malloc(len)) == 0)
errx(1, "sockdup");
if (salen)
memcpy(dp, sp, salen);
if (len > salen)
memset(dp + salen, 0, len - salen);
return (dp);
}
static void
p_rtentry(rt)
struct rtentry *rt;
{
static struct ifnet ifnet, *lastif;
struct sockaddr *sa, addr, mask;
struct sockaddr *addr, *mask;
if (!(sa = kgetsa(rt_key(rt))))
memset(&addr, 0, sizeof addr);
addr = sockdup(kgetsa(rt_key(rt)));
if (rt_mask(rt))
mask = sockdup(kgetsa(rt_mask(rt)));
else
addr = *sa;
if (!rt_mask(rt) || !(sa = kgetsa(rt_mask(rt))))
memset(&mask, 0, sizeof mask);
else
mask = *sa;
p_sockaddr(&addr, &mask, rt->rt_flags, WID_DST);
mask = sockdup(0);
p_sockaddr(addr, mask, rt->rt_flags, WID_DST);
free(addr);
free(mask);
p_sockaddr(kgetsa(rt->rt_gateway), NULL, RTF_HOST, WID_GW);
p_flags(rt->rt_flags, "%-6.6s ");
printf("%6d %8lu ", rt->rt_refcnt, rt->rt_use);