capture-pcap-util.h

   1 /* capture-pcap-util.h
   2  * Utility definitions for packet capture
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #ifndef __CAPTURE_PCAP_UTIL_H__
  26 #define __CAPTURE_PCAP_UTIL_H__
  27
  28 #ifdef HAVE_LIBPCAP
  29
  30 #include <pcap.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif /* __cplusplus */
  35
  36 /*
  37  * A snapshot length of 0 is useless - and libpcap/WinPcap don't guarantee
  38  * that a snapshot length of 0 will work, and, on some platforms, it won't
  39  * (with BPF, for example, the kernel is told the snapshot length via the
  40  * return value of the BPF program, and a return value of 0 means "drop
  41  * the packet"), so the minimum packet size is 1 byte.
  42  */
  43 #define MIN_PACKET_SIZE 1       /* minimum amount of packet data we can read */
  44
  45 GList *get_interface_list(int *err, char **err_str);
  46 #ifdef HAVE_PCAP_REMOTE
  47 GList *get_remote_interface_list(const char *hostname, const char *port,
  48                                  int auth_type, const char *username,
  49                                  const char *passwd, int *err, char **err_str);
  50 #endif
  51
  52 const char *linktype_val_to_name(int dlt);
  53 int linktype_name_to_val(const char *linktype);
  54
  55 #ifdef __cplusplus
  56 }
  57 #endif /* __cplusplus */
  58
  59 #endif /* HAVE_LIBPCAP */
  60
  61 /*
  62  * Append to a GString an indication of the version of libpcap/WinPcap
  63  * with which we were compiled, if we were, or an indication that we
  64  * weren't compiled with libpcap/WinPcap, if we weren't.
  65  */
  66 extern void get_compiled_pcap_version(GString *str);
  67
  68 /*
  69  * Append to a GString an indication of the version of libpcap/WinPcap
  70  * with which we're running, or an indication that we're not running
  71  * with libpcap/WinPcap, if we were compiled with libpcap/WinPcap,
  72  * or nothing, if we weren't compiled with libpcap/WinPcap.
  73  */
  74 extern void get_runtime_pcap_version(GString *str);
  75
  76 #endif /* __CAPTURE_PCAP_UTIL_H__ */