xref: /freebsd/contrib/libpcap/pcap/socket.h (revision 66fd12cf4896eb08ad8e7a2627537f84ead84dd3)
1 /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
2 /*
3  * Copyright (c) 1993, 1994, 1995, 1996, 1997
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by the Computer Systems
17  *	Engineering Group at Lawrence Berkeley Laboratory.
18  * 4. Neither the name of the University nor of the Laboratory may be used
19  *    to endorse or promote products derived from this software without
20  *    specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 #ifndef lib_pcap_socket_h
36 #define lib_pcap_socket_h
37 
38 /*
39  * Some minor differences between sockets on various platforms.
40  * We include whatever sockets are needed for Internet-protocol
41  * socket access on UN*X and Windows.
42  */
43 #ifdef _WIN32
44   /* Need windef.h for defines used in winsock2.h under MingW32 */
45   #ifdef __MINGW32__
46     #include <windef.h>
47   #endif
48   #include <winsock2.h>
49   #include <ws2tcpip.h>
50 
51   /*
52    * Winsock doesn't have this POSIX type; it's used for the
53    * tv_usec value of struct timeval.
54    */
55   typedef long suseconds_t;
56 #else /* _WIN32 */
57   #include <sys/types.h>
58   #include <sys/socket.h>
59   #include <netdb.h>		/* for struct addrinfo/getaddrinfo() */
60   #include <netinet/in.h>	/* for sockaddr_in, in BSD at least */
61   #include <arpa/inet.h>
62 
63   /*!
64    * \brief In Winsock, a socket handle is of type SOCKET; in UN*X, it's
65    * a file descriptor, and therefore a signed integer.
66    * We define SOCKET to be a signed integer on UN*X, so that it can
67    * be used on both platforms.
68    */
69   #ifndef SOCKET
70     #define SOCKET int
71   #endif
72 
73   /*!
74    * \brief In Winsock, the error return if socket() fails is INVALID_SOCKET;
75    * in UN*X, it's -1.
76    * We define INVALID_SOCKET to be -1 on UN*X, so that it can be used on
77    * both platforms.
78    */
79   #ifndef INVALID_SOCKET
80     #define INVALID_SOCKET -1
81   #endif
82 #endif /* _WIN32 */
83 
84 #endif /* lib_pcap_socket_h */
85