libpcap  1.10.1
About: libpcap is a packet filter library used by tools like tcpdump.
  Fossies Dox: libpcap-1.10.1.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

socket.h
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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 */