1 files changed, 134 insertions, 0 deletions
diff --git a/unionfs/main.c b/unionfs/main.c
new file mode 100644
index 00000000..c33b0654
--- /dev/null
+++ b/unionfs/main.c
@@ -0,0 +1,134 @@
+/* Hurd unionfs
+   Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
+   Written by Moritz Schulte <moritz@duesseldorf.ccc.de>.
+
+   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 of the
+   License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+   USA.  */
+
+#define _GNU_SOURCE
+
+#include <hurd/netfs.h>
+#include <argp.h>
+#include <argz.h>
+#include <error.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "version.h"
+#include "unionfs.h"
+#include "ncache.h"
+#include "ulfs.h"
+#include "lnode.h"
+#include "node.h"
+#include "options.h"
+#include "stow.h"
+#include "update.h"
+
+char *netfs_server_name = "unionfs";
+char *netfs_server_version = HURD_VERSION;
+
+/* Not really needed, since unionfs doesn't manage symlinks.  */
+int netfs_maxsymlinks = 0;
+
+/* Flags describing certain properties of the unionfs.  */
+int unionfs_flags;
+
+/* The filesystem id (the pid).  */
+pid_t fsid;
+
+/* A port to the underlying node.  */
+mach_port_t underlying_node;
+
+/* stat information for the underlying node.  */
+struct stat underlying_node_stat;
+
+/* Mapped time, used for updating node information.  */
+volatile struct mapped_time_value *maptime;
+
+/* Used by netfs_set_options to handle runtime option parsing.  */
+struct argp *netfs_runtime_argp = &argp_runtime;
+
+/* Main entry point.  */
+int
+main (int argc, char **argv)
+{
+  mach_port_t bootstrap_port;
+  error_t err = 0;
+
+  root_update_init ();
+
+  err = stow_init();
+  if (err)
+    error (EXIT_FAILURE, err, "failed to initialize stow support");
+
+  /* Argument parsing.  */
+  argp_parse (&argp_startup, argc, argv, ARGP_IN_ORDER, 0, 0);
+
+  err = node_create_root (&netfs_root_node);
+  if (err)
+    error (EXIT_FAILURE, err, "failed to create root node");
+
+  /* netfs initialization.  */
+  task_get_bootstrap_port (mach_task_self (), &bootstrap_port);
+  netfs_init ();
+  underlying_node = netfs_startup (bootstrap_port, O_READ);
+
+  err = node_init_root (netfs_root_node);
+  if (err)
+    error (EXIT_FAILURE, err, "failed to initialize root node");
+
+  /* Map the time, used for updating node information.  */
+  err = maptime_map (0, 0, &maptime);
+  if (err)
+    error (EXIT_FAILURE, err, "maptime_map");
+
+  /* More initialiazation.  */
+  ncache_init (ncache_size);
+
+  /* Here we adjust the root node permissions.  */
+  err = io_stat (underlying_node, &underlying_node_stat);
+
+  if (err)
+    error (EXIT_FAILURE, err, "io_stat");
+
+  fsid = getpid ();
+  netfs_root_node->nn_stat = underlying_node_stat;
+  netfs_root_node->nn_stat.st_ino = UNIONFS_ROOT_INODE; /* FIXME.  */
+  netfs_root_node->nn_stat.st_fsid = fsid;
+  netfs_root_node->nn_stat.st_mode = S_IFDIR | (underlying_node_stat.st_mode
+						& ~S_IFMT & ~S_ITRANS);
+  netfs_root_node->nn_translated = netfs_root_node->nn_stat.st_mode;
+  
+  /* If the underlying node isn't a directory, enhance the stat
+     information.  */
+  if (! S_ISDIR (underlying_node_stat.st_mode))
+    {
+      if (underlying_node_stat.st_mode & S_IRUSR)
+	netfs_root_node->nn_stat.st_mode |= S_IXUSR;
+      if (underlying_node_stat.st_mode & S_IRGRP)
+	netfs_root_node->nn_stat.st_mode |= S_IXGRP;
+      if (underlying_node_stat.st_mode & S_IROTH)
+	netfs_root_node->nn_stat.st_mode |= S_IXOTH;
+    } 
+
+  /* Update the timestamps of the root node.  */
+  fshelp_touch (&netfs_root_node->nn_stat,
+		TOUCH_ATIME | TOUCH_MTIME | TOUCH_CTIME, maptime);
+
+  /* Start serving clients.  */
+  for (;;)
+    netfs_server_loop ();
+}