-/* Provide a sys/socket header file for systems lacking it (read: mingw32).
- Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+/* Provide a sys/socket header file for systems lacking it (read: MinGW).
+ Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
Written by Simon Josefsson.
This program is free software; you can redistribute it and/or modify
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-#ifndef _SYS_SOCKET_H
-#define _SYS_SOCKET_H
+#ifndef _GL_SYS_SOCKET_H
+#define _GL_SYS_SOCKET_H
-/* This file is supposed to be used on platforms that lack
- sys/socket.h. It is intended to provide definitions and prototypes
- needed by an application.
+/* This file is supposed to be used on platforms that lack <sys/socket.h>
+ and on platforms where <sys/socket.h> cannot be included standalone.
+ It is intended to provide definitions and prototypes needed by an
+ application. */
- Currently only mingw32 is supported, which has the header files
- winsock2.h and ws2tcpip.h that declare the sys/socket.h definitions
- we need. */
+#if @HAVE_SYS_SOCKET_H@
-#if HAVE_WINSOCK2_H
-# include <winsock2.h>
-#endif
-#if HAVE_WS2TCPIP_H
-# include <ws2tcpip.h>
-#endif
+/* On many platforms, <sys/socket.h> assumes prior inclusion of
+ <sys/types.h>. */
-#endif /* _SYS_SOCKET_H */
+# include <sys/types.h>
+# include @ABSOLUTE_SYS_SOCKET_H@
+
+#else
+
+/* A platform that lacks <sys/socket.h>.
+
+ Currently only MinGW is supported. See the gnulib manual regarding
+ Windows sockets. MinGW has the header files winsock2.h and
+ ws2tcpip.h that declare the sys/socket.h definitions we need. Note
+ that you can influence which definitions you get by setting the
+ WINVER symbol before including these two files. For example,
+ getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
+ symbol is set indiriectly through WINVER). You can set this by
+ adding AC_DEFINE(WINVER, 0x0501) to configure.ac. Note that your
+ code may not run on older Windows releases then. My Windows 2000
+ box was not able to run the code, for example. The situation is
+ slightly confusing because:
+ http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/getaddrinfo_2.asp
+ suggests that getaddrinfo should be available on all Windows
+ releases. */
+
+
+# if @HAVE_WINSOCK2_H@
+# include <winsock2.h>
+# endif
+# if @HAVE_WS2TCPIP_H@
+# include <ws2tcpip.h>
+# endif
+
+/* For shutdown(). */
+# if !defined SHUT_RD && defined SD_RECEIVE
+# define SHUT_RD SD_RECEIVE
+# endif
+# if !defined SHUT_WR && defined SD_SEND
+# define SHUT_WR SD_SEND
+# endif
+# if !defined SHUT_RDWR && defined SD_BOTH
+# define SHUT_RDWR SD_BOTH
+# endif
+
+# if defined _WIN32 || defined __WIN32__
+# define ENOTSOCK WSAENOTSOCK
+# define EADDRINUSE WSAEADDRINUSE
+# define ENETRESET WSAENETRESET
+# define ECONNABORTED WSAECONNABORTED
+# define ECONNRESET WSAECONNRESET
+# define ENOTCONN WSAENOTCONN
+# define ESHUTDOWN WSAESHUTDOWN
+# endif
+
+#endif /* HAVE_SYS_SOCKET_H */
+
+#endif /* _GL_SYS_SOCKET_H */