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* Copyright (c) 1993, 1994, 1995, 1996, 1997
*      The Regents of the University of California.  All rights reserved.
*
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* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the Computer Systems
*      Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
*    to endorse or promote products derived from this software without
*    specific prior written permission.
*
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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*/

#ifndef lib_pcap_socket_h
#define lib_pcap_socket_h

/*
* Some minor differences between sockets on various platforms.
* We include whatever sockets are needed for Internet-protocol
* socket access on UN*X and Windows.
*/
#ifdef _WIN32
 /* Need windef.h for defines used in winsock2.h under MingW32 */
 #ifdef __MINGW32__
   #include <windef.h>
 #endif
 #include <winsock2.h>
 #include <ws2tcpip.h>

 /*!
  * \brief In Winsock, a socket handle is of type SOCKET; in UN*X, it's
  * a file descriptor, and therefore a signed integer.
  * We define PCAP_SOCKET to be a signed integer on UN*X and a
  * SOCKET on Windows, so that it can be used on both platforms.
  *
  * We used to use SOCKET rather than PCAP_SOCKET, but that collided
  * with other software, such as barnyard2, which had their own
  * definitions of SOCKET, so we changed it to PCAP_SOCKET.
  *
  * On Windows, this shouldn't break any APIs, as any code using
  * the two active-mode APIs that return a socket handle would
  * probably be assigning their return values to a SOCKET, and
  * as, on Windows, we're defining PCAP_SOCKET as SOCKET, there
  * would be no type clash.
  */
 #ifndef PCAP_SOCKET
   #define PCAP_SOCKET SOCKET
 #endif

 /*
  * Winsock doesn't have this POSIX type; it's used for the
  * tv_usec value of struct timeval.
  */
 typedef long suseconds_t;
#else /* _WIN32 */
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netdb.h>            /* for struct addrinfo/getaddrinfo() */
 #include <netinet/in.h>       /* for sockaddr_in, in BSD at least */
 #include <arpa/inet.h>

 /*!
  * \brief In Winsock, a socket handle is of type SOCKET; in UN*Xes,
  * it's a file descriptor, and therefore a signed integer.
  * We define PCAP_SOCKET to be a signed integer on UN*X and a
  * SOCKET on Windows, so that it can be used on both platforms.
  *
  * We used to use SOCKET rather than PCAP_SOCKET, but that collided
  * with other software, such as barnyard2, which had their own
  * definitions of SOCKET, so we changed it to PCAP_SOCKET.
  *
  * On UN*Xes, this might break code that uses one of the two
  * active-mode APIs that return a socket handle if those programs
  * were written to assign the return values of those APIs to a
  * SOCKET, as we're no longer defining SOCKET.  However, as
  * those APIs are only provided if libpcap is built with remote
  * capture support - which is not the default - and as they're
  * somewhat painful to use, there's probably little if any code
  * that needs to compile for UN*X and that uses them.  If there
  * *is* any such code, it could do
  *
  *    #ifndef PCAP_SOCKET
  *        #ifdef _WIN32
  *            #define PCAP_SOCKET SOCKET
  *        #else
  *            #defube PCAP_SOCKET int
  *        #endif
  *    #endif
  *
  * and use PCAP_SOCKET.
  */
 #ifndef PCAP_SOCKET
   #define PCAP_SOCKET int
 #endif

 /*!
  * \brief In Winsock, the error return if socket() fails is INVALID_SOCKET;
  * in UN*X, it's -1.
  * We define INVALID_SOCKET to be -1 on UN*X, so that it can be used on
  * both platforms.
  */
 #ifndef INVALID_SOCKET
   #define INVALID_SOCKET -1
 #endif
#endif /* _WIN32 */

#endif /* lib_pcap_socket_h */

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