about summary refs log tree commit diff
path: root/REORG.TODO/sysdeps/mach/hurd/sendto.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/sendto.c')
-rw-r--r--REORG.TODO/sysdeps/mach/hurd/sendto.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/sendto.c b/REORG.TODO/sysdeps/mach/hurd/sendto.c
new file mode 100644
index 0000000000..326999d27b
--- /dev/null
+++ b/REORG.TODO/sysdeps/mach/hurd/sendto.c
@@ -0,0 +1,100 @@
+/* Copyright (C) 1994-2017 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 <sys/socket.h>
+#include <sys/un.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+#include <hurd/ifsock.h>
+#include <hurd/socket.h>
+#include "hurd/hurdsocket.h"
+
+/* Send N bytes of BUF on socket FD to peer at address ADDR (which is
+   ADDR_LEN bytes long).  Returns the number sent, or -1 for errors.  */
+ssize_t
+__sendto (int fd,
+	  const void *buf,
+	  size_t n,
+	  int flags,
+	  const struct sockaddr_un *addr,
+	  socklen_t addr_len)
+{
+  addr_port_t aport = MACH_PORT_NULL;
+  error_t err;
+  size_t wrote;
+
+  /* Get an address port for the desired destination address.  */
+  error_t create_address_port (io_t port,
+			       const struct sockaddr_un *addr,
+			       socklen_t addr_len,
+			       addr_port_t *aport)
+    {
+      error_t err_port;
+
+      if (addr->sun_family == AF_LOCAL)
+	{
+	  char *name = _hurd_sun_path_dupa (addr, addr_len);
+	  /* For the local domain, we must look up the name as a file and talk
+	     to it with the ifsock protocol.  */
+	  file_t file = __file_name_lookup (name, 0, 0);
+	  if (file == MACH_PORT_NULL)
+	    return errno;
+	  err_port = __ifsock_getsockaddr (file, aport);
+	  __mach_port_deallocate (__mach_task_self (), file);
+	  if (err_port == MIG_BAD_ID || err_port == EOPNOTSUPP)
+	    /* The file did not grok the ifsock protocol.  */
+	    err_port = ENOTSOCK;
+	}
+      else
+	{
+	  err_port = __socket_create_address (port,
+					      addr->sun_family,
+					      (char *) addr,
+					      addr_len,
+					      aport);
+	}
+
+      return err_port;
+    }
+
+  err = HURD_DPORT_USE (fd,
+			({
+			  if (addr != NULL)
+			    err = create_address_port (port, addr, addr_len,
+						       &aport);
+			  else
+			    err = 0;
+			  if (! err)
+			    {
+			      /* Send the data.  */
+			      err = __socket_send (port, aport,
+						   flags, buf, n,
+						   NULL,
+						   MACH_MSG_TYPE_COPY_SEND, 0,
+						   NULL, 0, &wrote);
+			    }
+			  err;
+			}));
+
+  if (aport != MACH_PORT_NULL)
+    __mach_port_deallocate (__mach_task_self (), aport);
+
+  return err ? __hurd_sockfail (fd, flags, err) : wrote;
+}
+
+weak_alias (__sendto, sendto)