diff options
Diffstat (limited to 'usr.sbin/tcpdump/print-cdp.c')
| -rw-r--r-- | usr.sbin/tcpdump/print-cdp.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/usr.sbin/tcpdump/print-cdp.c b/usr.sbin/tcpdump/print-cdp.c index 4a2586e50e7..61a9ac96e5a 100644 --- a/usr.sbin/tcpdump/print-cdp.c +++ b/usr.sbin/tcpdump/print-cdp.c @@ -1,4 +1,4 @@ -/* $OpenBSD: print-cdp.c,v 1.6 2016/03/29 04:07:50 canacar Exp $ */ +/* $OpenBSD: print-cdp.c,v 1.7 2019/04/05 00:57:59 dlg Exp $ */ /* * Copyright (c) 1992, 1993, 1994, 1995, 1996, 1997 @@ -46,20 +46,17 @@ void cdp_print_prefixes(const u_char * p, int l); * Returns non-zero IFF it succeeds in printing the header */ void -cdp_print(const u_char *p, u_int length, u_int caplen, - const u_char *esrc, const u_char *edst) +cdp_print(const u_char *p, u_int length, u_int caplen, int i) { - int i; int type, len; /* Cisco Discovery Protocol */ - if (caplen < 12) { + if (caplen < i + 4) { printf("[|cdp]"); return; } - i=8; /* CDP data starts at offset 8 */ printf("CDP v%d, ttl=%ds", p[i], p[i+1]); i+=4; /* skip version, TTL and chksum */ |