epan/sna-utils.c

   1 /* sna-utils.c
   2  * Routines for SNA
   3  * Gilbert Ramirez <gram@alumni.rice.edu>
   4  *
   5  * $Id$
   6  *
   7  * Wireshark - Network traffic analyzer
   8  * By Gerald Combs <gerald@wireshark.org>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  24  */
  25
  26 #include "config.h"
  27
  28 #include <string.h>
  29
  30 #include "packet_info.h"
  31 #include "wsutil/pint.h"
  32 #include "sna-utils.h"
  33 #include "emem.h"
  34
  35 gchar *
  36 sna_fid_to_str(const address *addr)
  37 {
  38   gchar *cur;
  39
  40   cur=(gchar *)ep_alloc(14);
  41   sna_fid_to_str_buf(addr, cur, 14);
  42   return cur;
  43 }
  44
  45 void
  46 sna_fid_to_str_buf(const address *addr, gchar *buf, int buf_len)
  47 {
  48   const guint8 *addrdata;
  49   struct sna_fid_type_4_addr sna_fid_type_4_addr;
  50
  51   switch (addr->len) {
  52
  53   case 1:
  54     addrdata = (guint8 *)addr->data;
  55     g_snprintf(buf, buf_len, "%04X", addrdata[0]);
  56     break;
  57
  58   case 2:
  59     addrdata = (guint8 *)addr->data;
  60     g_snprintf(buf, buf_len, "%04X", pntohs(&addrdata[0]));
  61     break;
  62
  63   case SNA_FID_TYPE_4_ADDR_LEN:
  64     /* FID Type 4 */
  65     memcpy(&sna_fid_type_4_addr, addr->data, SNA_FID_TYPE_4_ADDR_LEN);
  66     g_snprintf(buf, buf_len, "%08X.%04X", sna_fid_type_4_addr.saf,
  67             sna_fid_type_4_addr.ef);
  68     break;
  69   }
  70 }