regex: also remove dependency on HAVE_WCSCOLL

[gnulib.git] / lib / getsockopt.c

diff --git a/lib/getsockopt.c b/lib/getsockopt.c
index 7be8bed..6894113 100644 (file)
--- a/lib/getsockopt.c
+++ b/lib/getsockopt.c
@@ -1,6 +1,6 @@
 /* getsockopt.c --- wrappers for Windows getsockopt function
 
-   Copyright (C) 2008 Free Software Foundation, Inc.
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -23,18 +23,57 @@
 /* Get winsock2.h. */
 #include <sys/socket.h>
 
+/* Get struct timeval. */
+#include <sys/time.h>
+
+/* Get memcpy. */
+#include <string.h>
+
 /* Get set_winsock_errno, FD_TO_SOCKET etc. */
 #include "w32sock.h"
 
 #undef getsockopt
 
 int
-rpl_getsockopt (int fd, int level, int optname, void *optval, int *optlen)
+rpl_getsockopt (int fd, int level, int optname, void *optval, socklen_t *optlen)
 {
   SOCKET sock = FD_TO_SOCKET (fd);
-  int r = getsockopt (sock, level, optname, optval, optlen);
-  if (r < 0)
-    set_winsock_errno ();
 
-  return r;
+  if (sock == INVALID_SOCKET)
+    {
+      errno = EBADF;
+      return -1;
+    }
+  else
+    {
+      int r;
+
+      if (level == SOL_SOCKET
+          && (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO))
+        {
+          int milliseconds;
+          int milliseconds_len = sizeof (int);
+          struct timeval tv;
+          size_t n;
+
+          r = getsockopt (sock, level, optname, (char *) &milliseconds,
+                          &milliseconds_len);
+          tv.tv_sec = milliseconds / 1000;
+          tv.tv_usec = (milliseconds - 1000 * tv.tv_sec) * 1000;
+          n = sizeof (struct timeval);
+          if (n > *optlen)
+            n = *optlen;
+          memcpy (optval, &tv, n);
+          *optlen = n;
+        }
+      else
+        {
+          r = getsockopt (sock, level, optname, optval, optlen);
+        }
+
+      if (r < 0)
+        set_winsock_errno ();
+
+      return r;
+    }
 }