diff options
Diffstat (limited to 'contrib/tcpdump/print-ip.c')
| -rw-r--r-- | contrib/tcpdump/print-ip.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/contrib/tcpdump/print-ip.c b/contrib/tcpdump/print-ip.c index e3e35ea..e1619c1 100644 --- a/contrib/tcpdump/print-ip.c +++ b/contrib/tcpdump/print-ip.c @@ -21,7 +21,7 @@ #ifndef lint static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-ip.c,v 1.100 2001/09/17 21:58:03 fenner Exp $ (LBL)"; + "@(#) $Header: /tcpdump/master/tcpdump/print-ip.c,v 1.100.4.1 2002/01/25 05:39:54 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -34,6 +34,7 @@ static const char rcsid[] = #include <netinet/in.h> +#include <netdb.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -257,13 +258,12 @@ ip_print(register const u_char *bp, register u_int length) register const u_char *cp; u_char nh; int advance; + struct protoent *proto; ip = (const struct ip *)bp; #ifdef LBL_ALIGN /* * If the IP header is not aligned, copy into abuf. - * This will never happen with BPF. It does happen raw packet - * dumps from -r. */ if ((long)ip & 3) { static u_char *abuf = NULL; @@ -461,7 +461,11 @@ again: break; default: - (void)printf(" ip-proto-%d %d", nh, len); + if ((proto = getprotobynumber(nh)) != NULL) + (void)printf(" %s", proto->p_name); + else + (void)printf(" ip-proto-%d", nh); + printf(" %d", len); break; } } @@ -480,11 +484,17 @@ again: if (off & 0x3fff) { /* * if this isn't the first frag, we're missing the - * next level protocol header. print the ip addr. + * next level protocol header. print the ip addr + * and the protocol. */ - if (off & 0x1fff) + if (off & 0x1fff) { (void)printf("%s > %s:", ipaddr_string(&ip->ip_src), ipaddr_string(&ip->ip_dst)); + if ((proto = getprotobynumber(ip->ip_p)) != NULL) + (void)printf(" %s", proto->p_name); + else + (void)printf(" ip-proto-%d", ip->ip_p); + } #ifndef IP_MF #define IP_MF 0x2000 #endif /* IP_MF */ |
