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/* resolv.h
* Definitions for network object lookup
*
* $Id: resolv.h,v 1.18 2004/06/25 07:00:54 jmayer Exp $
*
* Laurent Deniel <laurent.deniel@free.fr>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __RESOLV_H__
#define __RESOLV_H__
#ifndef MAXNAMELEN
#define MAXNAMELEN 64 /* max name length (hostname and port name) */
#endif
/*
* Flag controlling what names to resolve.
*/
ETH_VAR_IMPORT guint32 g_resolv_flags;
/* 32 types are sufficient (as are 640k of RAM) */
/* FIXME: Maybe MANUF/m, IP/i, IP6/6, IPX/x, UDP+TCP/t etc would be
more useful/consistent */
#define RESOLV_NONE 0x0
#define RESOLV_MAC 0x1
#define RESOLV_NETWORK 0x2
#define RESOLV_TRANSPORT 0x4
#define RESOLV_CONCURRENT 0x8
#define RESOLV_ALL_ADDRS (RESOLV_MAC|RESOLV_NETWORK|RESOLV_TRANSPORT)
#define RESOLV_ALL 0xFFFFFFFF
/* global variables */
extern gchar *g_ethers_path;
extern gchar *g_ipxnets_path;
extern gchar *g_pethers_path;
extern gchar *g_pipxnets_path;
/* Functions in resolv.c */
/* Set the flags controlling what names to resolve */
extern void resolv_set_flags(guint32 flags);
/* get_tcp_port returns the UDP port name or "%u" if not found */
extern gchar *get_udp_port(guint port);
/* get_tcp_port returns the TCP port name or "%u" if not found */
extern gchar *get_tcp_port(guint port);
/* get_sctp_port returns the SCTP port name or "%u" if not found */
extern gchar *get_sctp_port(guint port);
/*
* Asynchronous host name lookup initialization, processing, and cleanup
*/
/* host_name_lookup_init fires up an ADNS socket if we're using ADNS */
extern void host_name_lookup_init(void);
/* host_name_lookup_process does ADNS processing in GTK+ timeouts in Ethereal,
and before processing each packet in Tethereal, if we're using ADNS */
extern gint host_name_lookup_process(gpointer data);
/* host_name_lookup_cleanup cleans up an ADNS socket if we're using ADNS */
extern void host_name_lookup_cleanup(void);
/* get_hostname returns the host name or "%d.%d.%d.%d" if not found */
extern gchar *get_hostname(guint addr);
/* get_hostname6 returns the host name, or numeric addr if not found */
struct e_in6_addr;
const gchar* get_hostname6(struct e_in6_addr *ad);
/* get_ether_name returns the logical name if found in ethers files else
"<vendor>_%02x:%02x:%02x" if the vendor code is known else
"%02x:%02x:%02x:%02x:%02x:%02x" */
extern gchar *get_ether_name(const guint8 *addr);
/* get_ether_name returns the logical name if found in ethers files else NULL */
extern gchar *get_ether_name_if_known(const guint8 *addr);
/* get_manuf_name returns the vendor name or "%02x:%02x:%02x" if not known */
extern const gchar *get_manuf_name(const guint8 *addr);
/* get_ipxnet_name returns the logical name if found in an ipxnets file,
* or a string formatted with "%X" if not */
extern const gchar *get_ipxnet_name(const guint32 addr);
/* returns the ethernet address corresponding to name or NULL if not known */
extern guint8 *get_ether_addr(const gchar *name);
/* returns the ipx network corresponding to name. If name is unknown,
* 0 is returned and 'known' is set to FALSE. On success, 'known'
* is set to TRUE. */
guint32 get_ipxnet_addr(const gchar *name, gboolean *known);
/* adds a hostname/IP in the hash table */
extern void add_host_name(guint addr, const gchar *name);
/* add ethernet address / name corresponding to IP address */
extern void add_ether_byip(guint ip, const guint8 *eth);
/* Translates a string representing the hostname or dotted-decimal IP address
* into a numeric IP address value, returning TRUE if it succeeds and
* FALSE if it fails. */
gboolean get_host_ipaddr(const char *host, guint32 *addrp);
/*
* Translate IPv6 numeric address or FQDN hostname, into binary IPv6 address.
* Return TRUE if we succeed and set "*addrp" to that numeric IP address;
* return FALSE if we fail.
*/
gboolean get_host_ipaddr6(const char *host, struct e_in6_addr *addrp);
/*
* Find out whether a hostname resolves to an ip or ipv6 address
* Return "ip6" if it is IPv6, "ip" otherwise (including the case
* that we don't know)
*/
const char* host_ip_af(const char *host);
#endif /* __RESOLV_H__ */
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