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Keep the remaining payload length in a separate variable from the total

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payload length, so we can report the latter at the end of dissection.
This commit is contained in:
guy 2003-11-19 06:17:10 +00:00
parent 01634d3492
commit 914cf46872
1 changed files with 18 additions and 12 deletions
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30
print-ip6.c
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@ -21,7 +21,7 @@
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.37 2003-11-19 01:27:55 guy Exp $";
"@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.38 2003-11-19 06:17:10 guy Exp $";
#endif
#ifdef HAVE_CONFIG_H
@ -51,9 +51,10 @@ ip6_print(register const u_char *bp, register u_int length)
{
register const struct ip6_hdr *ip6;
register int advance;
register u_int len;
u_int len;
const u_char *ipend;
register const u_char *cp;
register u_int payload_len;
int nh;
int fragmented = 0;
u_int flow;
@ -79,11 +80,12 @@ ip6_print(register const u_char *bp, register u_int length)
snapend = ipend;
cp = (const u_char *)ip6;
payload_len = len;
advance = sizeof(struct ip6_hdr);
nh = ip6->ip6_nxt;
while (cp < snapend && advance > 0) {
cp += advance;
len -= advance;
payload_len -= advance;
if (cp == (const u_char *)(ip6 + 1) &&
nh != IPPROTO_TCP && nh != IPPROTO_UDP &&
@ -122,16 +124,19 @@ ip6_print(register const u_char *bp, register u_int length)
nh = *cp;
break;
case IPPROTO_SCTP:
sctp_print(cp, (const u_char *)ip6, len);
sctp_print(cp, (const u_char *)ip6, payload_len);
goto end;
case IPPROTO_TCP:
tcp_print(cp, len, (const u_char *)ip6, fragmented);
tcp_print(cp, payload_len, (const u_char *)ip6,
fragmented);
goto end;
case IPPROTO_UDP:
udp_print(cp, len, (const u_char *)ip6, fragmented);
udp_print(cp, payload_len, (const u_char *)ip6,
fragmented);
goto end;
case IPPROTO_ICMPV6:
icmp6_print(cp, len, (const u_char *)ip6, fragmented);
icmp6_print(cp, payload_len, (const u_char *)ip6,
fragmented);
goto end;
case IPPROTO_AH:
advance = ah_print(cp);
@ -154,18 +159,18 @@ ip6_print(register const u_char *bp, register u_int length)
}
case IPPROTO_PIM:
pim_print(cp, len);
pim_print(cp, payload_len);
goto end;
case IPPROTO_OSPF:
ospf6_print(cp, len);
ospf6_print(cp, payload_len);
goto end;
case IPPROTO_IPV6:
ip6_print(cp, len);
ip6_print(cp, payload_len);
goto end;
case IPPROTO_IPV4:
ip_print(cp, len);
ip_print(cp, payload_len);
goto end;
case IPPROTO_NONE:
@ -173,7 +178,8 @@ ip6_print(register const u_char *bp, register u_int length)
goto end;
default:
(void)printf("ip-proto-%d %d", ip6->ip6_nxt, len);
(void)printf("ip-proto-%d %d", ip6->ip6_nxt,
payload_len);
goto end;
}
}