1 files changed, 94 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/socketpair.c b/REORG.TODO/sysdeps/mach/hurd/socketpair.c
new file mode 100644
index 0000000000..f3cbf8c19b
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/socketpair.c
@@ -0,0 +1,94 @@
+/* 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 <fcntl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <hurd/socket.h>
+
+/* Create two new sockets, of type TYPE in domain DOMAIN and using
+   protocol PROTOCOL, which are connected to each other, and put file
+   descriptors for them in FDS[0] and FDS[1].  If PROTOCOL is zero,
+   one will be chosen automatically.  Returns 0 on success, -1 for errors.  */
+int
+__socketpair (int domain, int type, int protocol, int fds[2])
+{
+  error_t err;
+  socket_t server, sock1, sock2;
+  int d1, d2;
+
+  if (fds == NULL)
+    return __hurd_fail (EINVAL);
+
+  /* Find the domain's socket server.  */
+  server = _hurd_socket_server (domain, 0);
+  if (server == MACH_PORT_NULL)
+    return -1;
+
+  /* Create two sockets and connect them together.  */
+
+  err = __socket_create (server, type, protocol, &sock1);
+  if (err == MACH_SEND_INVALID_DEST || err == MIG_SERVER_DIED
+      || err == MIG_BAD_ID || err == EOPNOTSUPP)
+    {
+      /* On the first use of the socket server during the operation,
+	 allow for the old server port dying.  */
+      server = _hurd_socket_server (domain, 1);
+      if (server == MACH_PORT_NULL)
+	return -1;
+      err = __socket_create (server, type, protocol, &sock1);
+    }
+  if (err)
+    return __hurd_fail (err);
+  if (err = __socket_create (server, type, protocol, &sock2))
+    {
+      __mach_port_deallocate (__mach_task_self (), sock1);
+      return __hurd_fail (err);
+    }
+  if (err = __socket_connect2 (sock1, sock2))
+    {
+      __mach_port_deallocate (__mach_task_self (), sock1);
+      __mach_port_deallocate (__mach_task_self (), sock2);
+      return __hurd_fail (err);
+    }
+
+  /* Put the sockets into file descriptors.  */
+
+  d1 = _hurd_intern_fd (sock1, O_IGNORE_CTTY, 1);
+  if (d1 < 0)
+    {
+      __mach_port_deallocate (__mach_task_self (), sock2);
+      return -1;
+    }
+  d2 = _hurd_intern_fd (sock2, O_IGNORE_CTTY, 1);
+  if (d2 < 0)
+    {
+      err = errno;
+      (void) close (d1);
+      return __hurd_fail (err);
+    }
+
+  fds[0] = d1;
+  fds[1] = d2;
+  return 0;
+}
+
+weak_alias (__socketpair, socketpair)