Implement getaddrinfo fallback for MS-Windows

[gnu-emacs] / nt / inc / sys / socket.h

diff --git a/nt/inc/sys/socket.h b/nt/inc/sys/socket.h
index 6029778394b45fc3d11f4354d2d9240922674efd..2c72a78b0f464513f8ea7ef39d3629f6250cb55d 100644 (file)
--- a/nt/inc/sys/socket.h
+++ b/nt/inc/sys/socket.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 2001-2013 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 2001-2016 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -43,8 +43,9 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #undef FD_ZERO
 #endif
 
-/* avoid duplicate definition of timeval */
-#ifdef HAVE_TIMEVAL
+/* Avoid duplicate definition of timeval.  MinGW uses _TIMEVAL_DEFINED
+   in sys/time.h to avoid that.  */
+#if defined (HAVE_TIMEVAL) && defined (_MSC_VER)
 #define timeval ws_timeval
 #endif
 
@@ -62,7 +63,9 @@ typedef unsigned short uint16_t;
 #undef MUST_REDEF_SELECT
 #endif
 
-/* revert to our version of FD_SET */
+/* Revert to our version of FD_SET, but not when included from test
+   programs run by configure.  */
+#ifdef EMACS_CONFIG_H
 #undef FD_SET
 #undef FD_CLR
 #undef FD_ISSET
@@ -71,8 +74,9 @@ typedef unsigned short uint16_t;
 /* allow us to provide our own version of fd_set */
 #define fd_set ws_fd_set
 #include "w32.h"
+#endif /* EMACS_CONFIG_H */
 
-#ifdef HAVE_TIMEVAL
+#if defined (HAVE_TIMEVAL) && defined (_MSC_VER)
 #undef timeval
 #endif
 
@@ -94,6 +98,8 @@ typedef unsigned short uint16_t;
 #define accept         sys_accept
 #define recvfrom       sys_recvfrom
 #define sendto         sys_sendto
+#define getaddrinfo    sys_getaddrinfo
+#define freeaddrinfo   sys_freeaddrinfo
 
 int sys_socket(int af, int type, int protocol);
 int sys_bind (int s, const struct sockaddr *addr, int namelen);
@@ -114,12 +120,19 @@ int sys_recvfrom (int s, char *buf, int len, int flags,
                  struct sockaddr *from, int * fromlen);
 int sys_sendto (int s, const char * buf, int len, int flags,
                const struct sockaddr *to, int tolen);
+int sys_getaddrinfo (const char * node, const char * service,
+                    const struct addrinfo * hints, struct addrinfo ** res);
+void sys_freeaddrinfo (struct addrinfo * ai);
 
 /* In addition to wrappers for the winsock functions, we also provide
    an fcntl function, for setting sockets to non-blocking mode.  */
 int fcntl (int s, int cmd, int options);
 #define F_SETFL   4
+#define F_SETFD   2
 #define O_NONBLOCK  04000
+#define O_CLOEXEC O_NOINHERIT
+#define F_DUPFD_CLOEXEC 0x40000000
+#define FD_CLOEXEC 1
 
 /* we are providing a real h_errno variable */
 #undef h_errno