lib/w32sock.h

   1 /* w32sock.h --- internal auxiliary functions for Windows socket functions
   2
   3    Copyright (C) 2008-2020 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 /* Written by Paolo Bonzini */
  19
  20 #include <errno.h>
  21
  22 /* Get O_RDWR and O_BINARY.  */
  23 #include <fcntl.h>
  24
  25 /* Get _open_osfhandle().  */
  26 #include <io.h>
  27
  28 /* Get _get_osfhandle().  */
  29 #if GNULIB_MSVC_NOTHROW
  30 # include "msvc-nothrow.h"
  31 #else
  32 # include <io.h>
  33 #endif
  34
  35 #define FD_TO_SOCKET(fd)   ((SOCKET) _get_osfhandle ((fd)))
  36 #define SOCKET_TO_FD(fh)   (_open_osfhandle ((intptr_t) (fh), O_RDWR | O_BINARY))
  37
  38 static inline void
  39 set_winsock_errno (void)
  40 {
  41   int err = WSAGetLastError ();
  42
  43   /* Map some WSAE* errors to the runtime library's error codes.  */
  44   switch (err)
  45     {
  46     case WSA_INVALID_HANDLE:
  47       errno = EBADF;
  48       break;
  49     case WSA_NOT_ENOUGH_MEMORY:
  50       errno = ENOMEM;
  51       break;
  52     case WSA_INVALID_PARAMETER:
  53       errno = EINVAL;
  54       break;
  55     case WSAENAMETOOLONG:
  56       errno = ENAMETOOLONG;
  57       break;
  58     case WSAENOTEMPTY:
  59       errno = ENOTEMPTY;
  60       break;
  61     case WSAEWOULDBLOCK:
  62       errno = EWOULDBLOCK;
  63       break;
  64     case WSAEINPROGRESS:
  65       errno = EINPROGRESS;
  66       break;
  67     case WSAEALREADY:
  68       errno = EALREADY;
  69       break;
  70     case WSAENOTSOCK:
  71       errno = ENOTSOCK;
  72       break;
  73     case WSAEDESTADDRREQ:
  74       errno = EDESTADDRREQ;
  75       break;
  76     case WSAEMSGSIZE:
  77       errno = EMSGSIZE;
  78       break;
  79     case WSAEPROTOTYPE:
  80       errno = EPROTOTYPE;
  81       break;
  82     case WSAENOPROTOOPT:
  83       errno = ENOPROTOOPT;
  84       break;
  85     case WSAEPROTONOSUPPORT:
  86       errno = EPROTONOSUPPORT;
  87       break;
  88     case WSAEOPNOTSUPP:
  89       errno = EOPNOTSUPP;
  90       break;
  91     case WSAEAFNOSUPPORT:
  92       errno = EAFNOSUPPORT;
  93       break;
  94     case WSAEADDRINUSE:
  95       errno = EADDRINUSE;
  96       break;
  97     case WSAEADDRNOTAVAIL:
  98       errno = EADDRNOTAVAIL;
  99       break;
 100     case WSAENETDOWN:
 101       errno = ENETDOWN;
 102       break;
 103     case WSAENETUNREACH:
 104       errno = ENETUNREACH;
 105       break;
 106     case WSAENETRESET:
 107       errno = ENETRESET;
 108       break;
 109     case WSAECONNABORTED:
 110       errno = ECONNABORTED;
 111       break;
 112     case WSAECONNRESET:
 113       errno = ECONNRESET;
 114       break;
 115     case WSAENOBUFS:
 116       errno = ENOBUFS;
 117       break;
 118     case WSAEISCONN:
 119       errno = EISCONN;
 120       break;
 121     case WSAENOTCONN:
 122       errno = ENOTCONN;
 123       break;
 124     case WSAETIMEDOUT:
 125       errno = ETIMEDOUT;
 126       break;
 127     case WSAECONNREFUSED:
 128       errno = ECONNREFUSED;
 129       break;
 130     case WSAELOOP:
 131       errno = ELOOP;
 132       break;
 133     case WSAEHOSTUNREACH:
 134       errno = EHOSTUNREACH;
 135       break;
 136     default:
 137       errno = (err > 10000 && err < 10025) ? err - 10000 : err;
 138       break;
 139     }
 140 }