Initial revision

1 files changed, 121 insertions, 0 deletions

diff --git a/trans/ifsock.c b/trans/ifsock.c
new file mode 100644
index 00000000..9a0a8019
--- /dev/null
+++ b/trans/ifsock.c
@@ -0,0 +1,121 @@
+/* Server for S_IFSOCK nodes
+   Copyright (C) 1994 Free Software Foundation
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <hurd.h>
+#include <hurd/ports.h>
+#include <hurd/trivfs.h>
+#include <hurd/paths.h>
+#include <sys/socket.h>
+#include <hurd/socket.h>
+#include <hurd/fsys.h>
+
+mach_port_t address_port;
+
+/* Port types */
+#define PT_CTL 0
+#define PT_NODE 1
+
+int trivfs_fstype = FSTYPE_IFSOCK;
+int trivfs_fsid = 0; /* ??? */
+
+int trivfs_support_read = 0;
+int trivfs_support_write = 0;
+int trivfs_support_exec = 0
+
+int trivfs_allow_open = 0;
+
+int trivfs_protid_porttypes = {PT_NODE};
+int trivfs_cntl_porttypes = {PT_CTL};
+int trivfs_protid_nporttypes = 1;
+int trivfs_cntl_nporttypes = 1;
+
+main (int argc, char **argv)
+{
+  mach_port_t bootstrap;
+  mach_port_t pflocal;
+  mach_port_t ourcntl;
+  mach_port_t realnode;
+  char buf[512];
+  struct trivfs_control *cntl;
+
+  _libports_initialize ();
+
+  task_get_bootstrap_port (mach_task_self (), &bootstrap);
+  if (bootstrap == MACH_PORT_NULL)
+    {
+      fprintf (stderr, "%s must be started as a translator\n", argv[0]);
+      exit (1);
+    }
+  
+  /* Reply to our parent */
+  ourcntl = trivfs_handle_port (MACH_PORT_NULL, PT_CTL, PT_NODE);
+  error = fsys_startup (bootstrap, ourcntl, MACH_MSG_TYPE_MAKE_SEND,
+			&realnode);
+  
+  /* Install the returned realnode for trivfs's use */
+  cntl = ports_check_port_type (ourcntl, PT_CTL);
+  assert (cntl);
+  cntl->underlying = realnode;
+  ports_done_with_port (ourcntl);
+
+  /* Try and connect to the pflocal server */
+  sprintf (buf, "%s/%d", _SERVERS_SOCKET, PF_LOCAL);
+  pflocal = path_lookup (buf, 0);
+
+  if (pflocal == MACH_PORT_NULL)
+    address_port = MACH_PORT_NULL;
+  else
+    {
+      errno = socket_fabricate_address (pflocal, &address_port);
+      if (errno)
+	address_port = MACH_PORT_NULL;
+      mach_port_deallocate (mach_task_self (), pflocal);
+    }
+
+  /* Launch. */
+  ports_manage_port_operations_onethread ();
+  return 0;
+}
+  
+int
+ports_demuxer (mach_msg_header_t *, mach_msg_header_t *)
+{
+  return trivfs_demuxer || ifsock_server;
+}
+
+void
+trivfs_modify_stat (struct stat *)
+{
+}
+
+S_ifsock_getsockaddr (file_t sockfile,
+		      mach_port_t *address)
+{
+  struct trivfs_protid *cred = ports_check_port_type (sockfile, PT_NODE);
+  int perms;
+  
+  if (!cred)
+    return EOPNOTSUPP;
+  
+  err = file_check_access (cred->underlying, &perms);
+  if (!err && !(perms & O_READ))
+    err = EACCES;
+  
+  if (!err)
+    *address = address_port;
+  return err;
+}