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1 /*
2  * Copyright (c) 1994, 1996
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the Computer Systems
16  *	Engineering Group at Lawrence Berkeley Laboratory.
17  * 4. Neither the name of the University nor of the Laboratory may be used
18  *    to endorse or promote products derived from this software without
19  *    specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #ifndef lib_pcap_namedb_h
35 #define lib_pcap_namedb_h
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
41 /*
42  * As returned by the pcap_next_etherent()
43  * XXX this stuff doesn't belong in this interface, but this
44  * library already must do name to address translation, so
45  * on systems that don't have support for /etc/ethers, we
46  * export these hooks since they're already being used by
47  * some applications (such as tcpdump) and already being
48  * marked as exported in some OSes offering libpcap (such
49  * as Debian).
50  */
51 struct pcap_etherent {
52 	u_char addr[6];
53 	char name[122];
54 };
55 #ifndef PCAP_ETHERS_FILE
56 #define PCAP_ETHERS_FILE "/etc/ethers"
57 #endif
58 PCAP_API struct	pcap_etherent *pcap_next_etherent(FILE *);
59 PCAP_API u_char *pcap_ether_hostton(const char*);
60 PCAP_API u_char *pcap_ether_aton(const char *);
61 
62 PCAP_API bpf_u_int32 **pcap_nametoaddr(const char *);
63 PCAP_API struct addrinfo *pcap_nametoaddrinfo(const char *);
64 PCAP_API bpf_u_int32 pcap_nametonetaddr(const char *);
65 
66 PCAP_API int	pcap_nametoport(const char *, int *, int *);
67 PCAP_API int	pcap_nametoportrange(const char *, int *, int *, int *);
68 PCAP_API int	pcap_nametoproto(const char *);
69 PCAP_API int	pcap_nametoeproto(const char *);
70 PCAP_API int	pcap_nametollc(const char *);
71 /*
72  * If a protocol is unknown, PROTO_UNDEF is returned.
73  * Also, pcap_nametoport() returns the protocol along with the port number.
74  * If there are ambiguous entried in /etc/services (i.e. domain
75  * can be either tcp or udp) PROTO_UNDEF is returned.
76  */
77 #define PROTO_UNDEF		-1
78 
79 #ifdef __cplusplus
80 }
81 #endif
82 
83 #endif
84