1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/getsockopt.c b/sysdeps/mach/hurd/getsockopt.c
new file mode 100644
index 0000000000..a9c91ea0f1
--- /dev/null
+++ b/sysdeps/mach/hurd/getsockopt.c
@@ -0,0 +1,53 @@
+/* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <hurd/socket.h>
+#include <string.h>
+
+/* Put the current value for socket FD's option OPTNAME at protocol level LEVEL
+   into OPTVAL (which is *OPTLEN bytes long), and set *OPTLEN to the value's
+   actual length.  Returns 0 on success, -1 for errors.  */
+int
+DEFUN(getsockopt, (fd, level, optname, optval, optlen),
+      int fd AND int level AND int optname AND
+      PTR optval AND size_t *optlen)
+{
+  error_t err;
+  char *buf = optval;
+  mach_msg_type_number_t buflen = *optlen;
+
+  if (err = HURD_DPORT_USE (fd, __socket_getopt (port,
+						 level, optname,
+						 &buf, &buflen)))
+    return __hurd_dfail (fd, err);
+
+  if (buf != optval)
+    {
+      if (*optlen < buflen)
+	*optlen = buflen;
+      memcpy (optval, buf, *optlen);
+      __vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
+    }
+
+  return 0;
+}