ghc/runtime/io/createSocket.lc

   1 %
   2 % (c) The GRASP/AQUA Project, Glasgow University, 1995
   3 %
   4 \subsection[createSocket.lc]{Create a socket file descriptor}
   5
   6 \begin{code}
   7
   8 #include "rtsdefs.h"
   9 #include "stgio.h"
  10
  11 #ifdef HAVE_SYS_TYPES_H
  12 #include <sys/types.h>
  13 #endif
  14
  15 #ifdef HAVE_SYS_SOCKET_H
  16 #include <sys/socket.h>
  17 #endif
  18
  19 StgInt
  20 createSocket(I_ family, I_ type, I_ protocol)
  21 {
  22     int fd;
  23
  24     if ((fd = socket((int)family, (int)type, (int)protocol)) < 0) {
  25       if (errno != EINTR) {
  26           cvtErrno();
  27           switch (ghc_errno) {
  28           default:
  29               stdErrno();
  30               break;
  31           case GHC_EACCES:
  32               ghc_errtype = ERR_PERMISSIONDENIED;
  33               ghc_errstr  = "cannot create socket";
  34               break;
  35           case GHC_EMFILE:
  36               ghc_errtype = ERR_RESOURCEEXHAUSTED;
  37               ghc_errstr  = "Too many open files";
  38               break;
  39           case GHC_ENFILE:
  40               ghc_errtype = ERR_RESOURCEEXHAUSTED;
  41               ghc_errstr  = "System file table overflow";
  42               break;
  43           case GHC_EPROTONOSUPPORT:
  44               ghc_errtype = ERR_UNSUPPORTEDOPERATION;
  45               ghc_errstr  = "Protocol type not supported";
  46               break;
  47           case GHC_EPROTOTYPE:
  48               ghc_errtype = ERR_INAPPROPRIATETYPE;
  49               ghc_errstr  = "Protocol wrong type for socket";
  50               break;
  51           }
  52           return (StgInt)-1;
  53       }
  54     }
  55     return (StgInt)fd;
  56 }
  57
  58 \end{code}