1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/getpeername.c b/REORG.TODO/sysdeps/mach/hurd/getpeername.c
new file mode 100644
index 0000000000..fed9c0163a
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/getpeername.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 1992-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <hurd/socket.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
+__getpeername (int fd, __SOCKADDR_ARG addrarg, socklen_t *len)
+{
+  error_t err;
+  mach_msg_type_number_t buflen = *len;
+  int type;
+  struct sockaddr *addr = addrarg.__sockaddr__;
+  char *buf = (char *) addr;
+  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 (*len > buflen)
+    *len = buflen;
+
+  if (buf != (char *) addr)
+    {
+      memcpy (addr, buf, *len);
+      __vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
+    }
+
+  const sa_family_t family = type;
+  if (*len > offsetof (struct sockaddr, sa_family))
+    {
+      if (*len < (char *) (&addr->sa_family + 1) - (char *) addr)
+	memcpy (&addr->sa_family, &family,
+		*len - offsetof (struct sockaddr, sa_family));
+      else
+	addr->sa_family = family;
+    }
+
+  return 0;
+}
+
+weak_alias (__getpeername, getpeername)