added dbus support

[monky] / src / dbus / dbus-transport-unix.c

diff --git a/src/dbus/dbus-transport-unix.c b/src/dbus/dbus-transport-unix.c
new file mode 100644 (file)
index 0000000..a13fde1
--- /dev/null
+++ b/src/dbus/dbus-transport-unix.c
@@ -0,0 +1,181 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* dbus-transport-unix.c UNIX socket subclasses of DBusTransport
+ *
+ * Copyright (C) 2002, 2003, 2004  Red Hat Inc.
+ *
+ * Licensed under the Academic Free License version 2.1
+ * 
+ * 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
+ *
+ */
+
+#include "dbus-internals.h"
+#include "dbus-connection-internal.h"
+#include "dbus-transport-unix.h"
+#include "dbus-transport-socket.h"
+#include "dbus-transport-protected.h"
+#include "dbus-watch.h"
+#include "dbus-sysdeps-unix.h"
+
+/**
+ * @defgroup DBusTransportUnix DBusTransport implementations for UNIX
+ * @ingroup  DBusInternals
+ * @brief Implementation details of DBusTransport on UNIX
+ *
+ * @{
+ */
+
+/**
+ * Creates a new transport for the given Unix domain socket
+ * path. This creates a client-side of a transport.
+ *
+ * @todo once we add a way to escape paths in a dbus
+ * address, this function needs to do escaping.
+ *
+ * @param path the path to the domain socket.
+ * @param abstract #TRUE to use abstract socket namespace
+ * @param error address where an error can be returned.
+ * @returns a new transport, or #NULL on failure.
+ */
+DBusTransport*
+_dbus_transport_new_for_domain_socket (const char     *path,
+                                       dbus_bool_t     abstract,
+                                       DBusError      *error)
+{
+  int fd;
+  DBusTransport *transport;
+  DBusString address;
+  
+  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+
+  if (!_dbus_string_init (&address))
+    {
+      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+      return NULL;
+    }
+
+  fd = -1;
+
+  if ((abstract &&
+       !_dbus_string_append (&address, "unix:abstract=")) ||
+      (!abstract &&
+       !_dbus_string_append (&address, "unix:path=")) ||
+      !_dbus_string_append (&address, path))
+    {
+      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+      goto failed_0;
+    }
+  
+  fd = _dbus_connect_unix_socket (path, abstract, error);
+  if (fd < 0)
+    {
+      _DBUS_ASSERT_ERROR_IS_SET (error);
+      goto failed_0;
+    }
+
+  _dbus_fd_set_close_on_exec (fd);
+  
+  _dbus_verbose ("Successfully connected to unix socket %s\n",
+                 path);
+
+  transport = _dbus_transport_new_for_socket (fd, NULL, &address);
+  if (transport == NULL)
+    {
+      dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
+      goto failed_1;
+    }
+  
+  _dbus_string_free (&address);
+  
+  return transport;
+
+ failed_1:
+  _dbus_close_socket (fd, NULL);
+ failed_0:
+  _dbus_string_free (&address);
+  return NULL;
+}
+
+/**
+ * Opens platform specific transport types.
+ * 
+ * @param entry the address entry to try opening
+ * @param transport_p return location for the opened transport
+ * @param error error to be set
+ * @returns result of the attempt
+ */
+DBusTransportOpenResult
+_dbus_transport_open_platform_specific (DBusAddressEntry  *entry,
+                                        DBusTransport    **transport_p,
+                                        DBusError         *error)
+{
+  const char *method;
+  
+  method = dbus_address_entry_get_method (entry);
+  _dbus_assert (method != NULL);
+
+  if (strcmp (method, "unix") == 0)
+    {
+      const char *path = dbus_address_entry_get_value (entry, "path");
+      const char *tmpdir = dbus_address_entry_get_value (entry, "tmpdir");
+      const char *abstract = dbus_address_entry_get_value (entry, "abstract");
+          
+      if (tmpdir != NULL)
+        {
+          _dbus_set_bad_address (error, NULL, NULL,
+                                 "cannot use the \"tmpdir\" option for an address to connect to, only in an address to listen on");
+          return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+        }
+          
+      if (path == NULL && abstract == NULL)
+        {
+          _dbus_set_bad_address (error, "unix",
+                                 "path or abstract",
+                                 NULL);
+          return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+        }
+
+      if (path != NULL && abstract != NULL)
+        {
+          _dbus_set_bad_address (error, NULL, NULL,
+                                 "can't specify both \"path\" and \"abstract\" options in an address");
+          return DBUS_TRANSPORT_OPEN_BAD_ADDRESS;
+        }
+
+      if (path)
+        *transport_p = _dbus_transport_new_for_domain_socket (path, FALSE,
+                                                           error);
+      else
+        *transport_p = _dbus_transport_new_for_domain_socket (abstract, TRUE,
+                                                           error);
+      if (*transport_p == NULL)
+        {
+          _DBUS_ASSERT_ERROR_IS_SET (error);
+          return DBUS_TRANSPORT_OPEN_DID_NOT_CONNECT;
+        }
+      else
+        {
+          _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+          return DBUS_TRANSPORT_OPEN_OK;
+        }      
+    }
+  else
+    {
+      _DBUS_ASSERT_ERROR_IS_CLEAR (error);
+      return DBUS_TRANSPORT_OPEN_NOT_HANDLED;
+    }
+}
+
+/** @} */