The Tcpdump Group git mirrors - tcpdump/blob - print-sip.c

   1 /*
   2  * Redistribution and use in source and binary forms, with or without
   3  * modification, are permitted provided that: (1) source code
   4  * distributions retain the above copyright notice and this paragraph
   5  * in its entirety, and (2) distributions including binary code include
   6  * the above copyright notice and this paragraph in its entirety in
   7  * the documentation or other materials provided with the distribution.
   8  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
   9  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  10  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  11  * FOR A PARTICULAR PURPOSE.
  12  *
  13  * Original code by Hannes Gredler (hannes@juniper.net)
  14  */
  15
  16 #ifdef HAVE_CONFIG_H
  17 #include "config.h"
  18 #endif
  19
  20 #include <tcpdump-stdinc.h>
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 #include "interface.h"
  26 #include "extract.h"
  27
  28 void
  29 sip_print(register const u_char *pptr, register u_int len)
  30 {
  31     u_int idx;
  32
  33     printf("SIP, length: %u%s", len, vflag ? "\n\t" : "");
  34
  35     /* in non-verbose mode just lets print the protocol and length */
  36     if (vflag < 1)
  37         return;
  38
  39     for (idx = 0; idx < len; idx++) {
  40         TCHECK2(*(pptr+idx), 2);
  41         if (EXTRACT_16BITS(pptr+idx) != 0x0d0a) { /* linefeed ? */
  42             safeputchar(gndo, *(pptr + idx));
  43         } else {
  44             printf("\n\t");
  45             idx+=1;
  46         }
  47     }
  48
  49     /* do we want to see an additionally hexdump ? */
  50     if (vflag> 1)
  51         print_unknown_data(gndo,pptr,"\n\t",len);
  52
  53     return;
  54
  55 trunc:
  56     printf("[|sip]");
  57 }