1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/getpeername.c b/sysdeps/mach/hurd/getpeername.c
new file mode 100644
index 0000000000..a9ea32c2ae
--- /dev/null
+++ b/sysdeps/mach/hurd/getpeername.c
@@ -0,0 +1,59 @@
+/* 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 address of the peer connected to socket FD into *ADDR
+   (which is *LEN bytes long), and its actual length into *LEN.  */
+int
+DEFUN(getpeername, (fd, addr, len),
+      int fd AND struct sockaddr *addr AND size_t *len)
+{
+  error_t err;
+  char *buf = (char *) addr;
+  mach_msg_type_number_t buflen = *len;
+  int type;
+  addr_port_t aport;
+
+  if (err = HURD_DPORT_USE (fd, __socket_peername (port, &aport)))
+    return __hurd_dfail (fd, err);
+
+  err = __socket_whatis_address (aport, &type, &buf, &buflen);
+  __mach_port_deallocate (__mach_task_self (), aport);
+
+  if (err)
+    return __hurd_dfail (fd, err);
+
+  if (buf != (char *) addr)
+    {
+      if (*len < buflen)
+	*len = buflen;
+      memcpy (addr, buf, *len);
+      __vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
+    }
+
+  addr->sa_family = type;
+
+  return 0;
+}