diff options
| author | Terry Dawson VK2KTJ <terry@animats.net> | 2001-09-12 13:18:43 +0000 |
|---|---|---|
| committer | Terry Dawson VK2KTJ <terry@animats.net> | 2001-09-12 13:18:43 +0000 |
| commit | 0eb707fdcf1b87e71bb3a9eaa8472d0b05799a3d (patch) | |
| tree | b2db8371470b697e3ae8a19b1e78c7805046f2d2 /listen/ipdump.c | |
| parent | 628edceba5f1485ef7c4ef30fba93b4c0c0dd955 (diff) | |
updated libtool, uniformly indented source, corrected small ax25mond Makefile bug
Diffstat (limited to 'listen/ipdump.c')
| -rw-r--r-- | listen/ipdump.c | 59 |
1 files changed, 31 insertions, 28 deletions
diff --git a/listen/ipdump.c b/listen/ipdump.c index fc14461..8dfc433 100644 --- a/listen/ipdump.c +++ b/listen/ipdump.c @@ -1,4 +1,4 @@ -/* @(#) $Header: /home/ax25-cvs/ax25-apps/listen/ipdump.c,v 1.1 2001/04/10 01:58:52 csmall Exp $ */ +/* @(#) $Header: /home/ax25-cvs/ax25-apps/listen/ipdump.c,v 1.2 2001/09/12 13:18:44 terry Exp $ */ /* IP header tracing routines * Copyright 1991 Phil Karn, KA9Q @@ -12,8 +12,8 @@ #define DF 0x4000 #define CE 0x8000 -#define IPIPNEW_PTCL 4 -#define IPIPOLD_PTCL 94 +#define IPIPNEW_PTCL 4 +#define IPIPOLD_PTCL 94 #define TCP_PTCL 6 #define UDP_PTCL 17 #define ICMP_PTCL 1 @@ -37,42 +37,45 @@ void ip_dump(unsigned char *data, int length, int hexdump) /* Sneak peek at IP header and find length */ hdr_length = (data[0] & 0xf) << 2; - - if (hdr_length < IPLEN) - { + + if (hdr_length < IPLEN) { lprintf(T_ERROR, " bad header\n"); return; } - tos = data[1]; + tos = data[1]; ip_length = get16(data + 2); - id = get16(data + 4); - fl_offs = get16(data + 6); - flags = fl_offs & 0xE000; - offset = (fl_offs & 0x1FFF) << 3; - ttl = data[8]; - protocol = data[9]; - source = data + 12; - dest = data + 16; + id = get16(data + 4); + fl_offs = get16(data + 6); + flags = fl_offs & 0xE000; + offset = (fl_offs & 0x1FFF) << 3; + ttl = data[8]; + protocol = data[9]; + source = data + 12; + dest = data + 16; lprintf(T_IPHDR, " len %d", ip_length); - + lprintf(T_ADDR, " %d.%d.%d.%d->%d.%d.%d.%d", - source[0], source[1], source[2], source[3], - dest[0], dest[1], dest[2], dest[3]); - + source[0], source[1], source[2], source[3], + dest[0], dest[1], dest[2], dest[3]); + lprintf(T_IPHDR, " ihl %d ttl %d", hdr_length, ttl); - - if (tos != 0) lprintf(T_IPHDR, " tos %d", tos); - + + if (tos != 0) + lprintf(T_IPHDR, " tos %d", tos); + if (offset != 0 || (flags & MF)) lprintf(T_IPHDR, " id %d offs %d", id, offset); - - if (flags & DF) lprintf(T_IPHDR, " DF"); - if (flags & MF) lprintf(T_IPHDR, " MF"); - if (flags & CE) lprintf(T_IPHDR, " CE"); - - data += hdr_length; + + if (flags & DF) + lprintf(T_IPHDR, " DF"); + if (flags & MF) + lprintf(T_IPHDR, " MF"); + if (flags & CE) + lprintf(T_IPHDR, " CE"); + + data += hdr_length; length -= hdr_length; if (offset != 0) { |