src/ptclib/udp.h

   1 //
   2 // stund/udp.h
   3 //
   4 // Copyright (c) 2002 Alan Hawrylyshen
   5 //
   6 // Permission is hereby granted, free of charge, to any person obtaining
   7 // a copy of this software and associated documentation files (the
   8 // "Software"), to deal in the Software without restriction, including
   9 // without limitation the rights to use, copy, modify, merge, publish,
  10 // distribute, sublicense, and/or sell copies of the Software, and to
  11 // permit persons to whom the Software is furnished to do so, subject to
  12 // the following conditions:
  13 //
  14 // The above copyright notice and this permission notice shall be
  15 // included in all copies or substantial portions of the Software.
  16 //
  17 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20 // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  21 // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  22 // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  23 // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 //
  25
  26
  27 /*************************** UDP networking stuff  *******************/
  28 #ifndef udp_h
  29 #define udp_h
  30
  31 #ifdef WIN32
  32
  33 #include <errno.h>
  34
  35 #ifndef _WIN32_WCE
  36 #include <winsock2.h>
  37 #else
  38 #include <winsock.h>
  39 #endif
  40
  41 #include <io.h>
  42
  43 typedef int socklen_t;
  44 #ifndef errno
  45 #define errno WSAGetLastError()
  46 #endif
  47 typedef SOCKET Socket;
  48
  49 #define EWOULDBLOCK             WSAEWOULDBLOCK
  50 #define EINPROGRESS             WSAEINPROGRESS
  51 #define EALREADY                WSAEALREADY
  52 #define ENOTSOCK                WSAENOTSOCK
  53 #define EDESTADDRREQ            WSAEDESTADDRREQ
  54 #define EMSGSIZE                WSAEMSGSIZE
  55 #define EPROTOTYPE              WSAEPROTOTYPE
  56 #define ENOPROTOOPT             WSAENOPROTOOPT
  57 #define EPROTONOSUPPORT         WSAEPROTONOSUPPORT
  58 #define ESOCKTNOSUPPORT         WSAESOCKTNOSUPPORT
  59 #define EOPNOTSUPP              WSAEOPNOTSUPP
  60 #define EPFNOSUPPORT            WSAEPFNOSUPPORT
  61 #define EAFNOSUPPORT            WSAEAFNOSUPPORT
  62 #define EADDRINUSE              WSAEADDRINUSE
  63 #define EADDRNOTAVAIL           WSAEADDRNOTAVAIL
  64 #define ENETDOWN                WSAENETDOWN
  65 #define ENETUNREACH             WSAENETUNREACH
  66 #define ENETRESET               WSAENETRESET
  67 #define ECONNABORTED            WSAECONNABORTED
  68 #define ECONNRESET              WSAECONNRESET
  69 #define ENOBUFS                 WSAENOBUFS
  70 #define EISCONN                 WSAEISCONN
  71 #define ENOTCONN                WSAENOTCONN
  72 #define ESHUTDOWN               WSAESHUTDOWN
  73 #define ETOOMANYREFS            WSAETOOMANYREFS
  74 #define ETIMEDOUT               WSAETIMEDOUT
  75 #define ECONNREFUSED            WSAECONNREFUSED
  76 #define ELOOP                   WSAELOOP
  77 #define EHOSTDOWN               WSAEHOSTDOWN
  78 #define EHOSTUNREACH            WSAEHOSTUNREACH
  79 #define EPROCLIM                WSAEPROCLIM
  80 #define EUSERS                  WSAEUSERS
  81 #define EDQUOT                  WSAEDQUOT
  82 #define ESTALE                  WSAESTALE
  83 #define EREMOTE                 WSAEREMOTE
  84
  85 typedef LONGLONG Int64;
  86
  87 #else
  88
  89 typedef int Socket;
  90 static const Socket INVALID_SOCKET = -1;
  91 static const int SOCKET_ERROR = -1;
  92
  93
  94 int closesocket( Socket fd );
  95
  96 #ifdef P_RTEMS
  97 typedef int socklen_t;
  98 extern "C" {
  99   int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *tv);
 100 }
 101 #endif
 102
 103 #endif
 104
 105
 106
 107 const int udpMaxMessageLength=16*1024;
 108
 109 /// Take a name in the form "host.foo.com:5000" and return ip and port
 110 void
 111 parseHostName( char* peerName, unsigned int* ip, unsigned short* portVal, unsigned int defaultPort = 10000 );
 112
 113 /// Open a UDP socket to receive on the given port - if port is 0, pick a a port, if interfaceIp!=0 then use ONLY the interface specified instead of all of them
 114 Socket
 115 openPort( unsigned short port=0, unsigned int interfaceIp=0 );
 116
 117 /// recive a UDP message
 118 bool
 119 getMessage( Socket fd, char* buf, int* len, unsigned int* srcIp, unsigned short* srcPort );
 120
 121 /// send a UDP message
 122 bool
 123 sendMessage( Socket fd, char* msg, int len,
 124              unsigned int dstIp=0, unsigned short dstPort=0 );
 125
 126 /// set up network - does nothing in unix but needed for windows
 127 void
 128 initNetwork();
 129
 130
 131 // Local Variables:
 132 // mode:c++
 133 // c-file-style:"bsd"
 134 // c-file-offsets:((case-label . +))
 135 // c-basic-offset:4
 136 // indent-tabs-mode:nil
 137 // End:
 138 #endif