Update Gnulib; add new modules.

This updates Gnulib to v0.0-4889-ge375fe3.

* m4/gnulib-cache.m4: Add `accept', `bind', `close', `connect',
  `getpeername', `getsockname', `getsockopt', `listen', `malloc',
  `malloca', `recv', `recvfrom', `send', `sendto', `setsockopt',
  `shutdown', `socket', and `sockets', requested by
  Jan Nieuwenhuizen <janneke-list@xs4all.nl> for cross-MinGW32 builds.
  Add `trunc', requested by Mark H Weaver <mhw@netris.org>.

1 files changed, 56 insertions, 0 deletions

diff --git a/lib/setsockopt.c b/lib/setsockopt.c
new file mode 100644
index 000000000..5623ca387
--- /dev/null
+++ b/lib/setsockopt.c
@@ -0,0 +1,56 @@
+/* setsockopt.c --- wrappers for Windows setsockopt function
+
+   Copyright (C) 2008-2011 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Paolo Bonzini */
+
+#include <config.h>
+
+#define WIN32_LEAN_AND_MEAN
+/* Get winsock2.h. */
+#include <sys/socket.h>
+
+/* Get struct timeval. */
+#include <sys/time.h>
+
+/* Get set_winsock_errno, FD_TO_SOCKET etc. */
+#include "w32sock.h"
+
+#undef setsockopt
+
+int
+rpl_setsockopt (int fd, int level, int optname, const void *optval, socklen_t optlen)
+{
+  int r;
+  SOCKET sock = FD_TO_SOCKET (fd);
+
+  if (level == SOL_SOCKET && (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
+    {
+      const struct timeval *tv = optval;
+      int milliseconds = tv->tv_sec * 1000 + tv->tv_usec / 1000;
+      optval = &milliseconds;
+      r = setsockopt (sock, level, optname, optval, sizeof (int));
+    }
+  else
+    {
+      r = setsockopt (sock, level, optname, optval, optlen);
+    }
+
+  if (r < 0)
+    set_winsock_errno ();
+
+  return r;
+}