freebsd-skq/print-sip.c
2015-01-06 19:03:11 +00:00

57 lines
1.6 KiB
C

/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code
* distributions retain the above copyright notice and this paragraph
* in its entirety, and (2) distributions including binary code include
* the above copyright notice and this paragraph in its entirety in
* the documentation or other materials provided with the distribution.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* Original code by Hannes Gredler (hannes@juniper.net)
*/
#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
#include "interface.h"
#include "extract.h"
void
sip_print(netdissect_options *ndo,
register const u_char *pptr, register u_int len)
{
u_int idx;
ND_PRINT((ndo, "SIP, length: %u%s", len, ndo->ndo_vflag ? "\n\t" : ""));
/* in non-verbose mode just lets print the protocol and length */
if (ndo->ndo_vflag < 1)
return;
for (idx = 0; idx < len; idx++) {
ND_TCHECK2(*(pptr+idx), 2);
if (EXTRACT_16BITS(pptr+idx) != 0x0d0a) { /* linefeed ? */
safeputchar(ndo, *(pptr + idx));
} else {
ND_PRINT((ndo, "\n\t"));
idx+=1;
}
}
/* do we want to see an additionally hexdump ? */
if (ndo->ndo_vflag > 1)
print_unknown_data(ndo, pptr, "\n\t", len);
return;
trunc:
ND_PRINT((ndo, "[|sip]"));
}