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more verbose printing for unknown SLARP options, misc. cleanups

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This commit is contained in:
hannes 2002-10-06 16:35:45 +00:00
parent 117f0765e0
commit 2789e49986
1 changed files with 15 additions and 7 deletions
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22
print-chdlc.c
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@ -21,7 +21,7 @@
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/tcpdump/print-chdlc.c,v 1.19 2002-10-04 08:15:35 hannes Exp $ (LBL)";
"@(#) $Header: /tcpdump/master/tcpdump/print-chdlc.c,v 1.20 2002-10-06 16:35:45 hannes Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@ -116,7 +116,8 @@ chdlc_print(register const u_char *p, u_int length, u_int caplen)
break;
#endif
case ETHERTYPE_ISO:
if (*(p+CHDLC_HDRLEN) == 0) /* is the fudge byte set ? if yes lets skip a byte */
/* is the fudge byte set ? if yes lets skip a byte */
if (*(p+CHDLC_HDRLEN) == 0)
isoclns_print(p+CHDLC_HDRLEN+1, length-1, length-1, NULL, NULL);
else
isoclns_print(p+CHDLC_HDRLEN, length, length, NULL, NULL);
@ -163,17 +164,20 @@ chdlc_slarp_print(const u_char *cp, u_int length)
}
slarp = (const struct cisco_slarp *)cp;
printf("SLARP (length: %u), ",length);
switch (ntohl(slarp->code)) {
case SLARP_REQUEST:
printf("slarp-request");
printf("request");
/* ok we do not know it - but lets at least dump it */
print_unknown_data(cp+4,"\n\t",length-4);
break;
case SLARP_REPLY:
printf("slarp-reply %s/%s",
printf("reply %s/%s",
ipaddr_string(&slarp->un.addr.addr),
ipaddr_string(&slarp->un.addr.mask));
break;
case SLARP_KEEPALIVE:
printf("slarp-keepalive my=0x%x your=0x%x ",
printf("keepalive: mineseen=0x%08x yourseen=0x%08x ",
(u_int32_t)ntohl(slarp->un.keep.myseq),
(u_int32_t)ntohl(slarp->un.keep.yourseq));
printf("reliability=0x%04x t1=%d.%d",
@ -181,10 +185,14 @@ chdlc_slarp_print(const u_char *cp, u_int length)
ntohs(slarp->un.keep.t2));
break;
default:
printf("slarp-0x%x unknown", (u_int32_t)ntohl(slarp->code));
printf("0x%02x unknown", (u_int32_t)ntohl(slarp->code));
if (vflag <= 1)
print_unknown_data(cp+4,"\n\t",length-4);
break;
}
if (SLARP_LEN < length && vflag)
printf("(trailing junk: %d bytes)", length - SLARP_LEN);
printf(", (trailing junk: %d bytes)", length - SLARP_LEN);
if (vflag > 1)
print_unknown_data(cp+4,"\n\t",length-4);
}