From 935a41a04c3f638134fa905503fc41ddbd18902f Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Tue, 9 Nov 2004 06:11:33 +0000
Subject: 2004-11-09  Colin Walters  <walters@verbum.org>

	* dbus/dbus-string.c (_dbus_string_get_length): New
	function, writes DBusString to C buffer.

	* dbus/dbus-string.h: Prototype it.

	* dbus/dbus-message.c (dbus_message_type_to_string): New
	function, converts message type into C string.

	* dbus/dbus-message.h: Prototype it.

	* bus/selinux.c (bus_selinux_check): Take source pid,
	target pid, and audit data.  Pass audit data to
	avc_has_perm.
	(log_audit_callback): New function, appends extra
	audit information.
	(bus_selinux_allows_acquire_service): Also take
	service name, add it to audit data.
	(bus_selinux_allows_send): Also take message
	type, interface, method member, error name,
	and destination, and add them to audit data.
	(log_cb): Initialize func_audit.

	* bus/selinux.h (bus_selinux_allows_acquire_service)
	(bus_selinux_allows_send): Update prototypes

	* bus/services.c (bus_registry_acquire_service): Pass
	service name to bus_selinux_allows_acquire_service.

	* bus/bus.c (bus_context_check_security_policy): Pass
	additional audit data.  Move assignment of dest
	to its own line.
---
 dbus/dbus-message.c | 31 +++++++++++++++++++++++++++++++
 dbus/dbus-message.h |  1 +
 dbus/dbus-string.c  | 24 ++++++++++++++++++++++++
 dbus/dbus-string.h  |  3 +++
 4 files changed, 59 insertions(+)

(limited to 'dbus')

diff --git a/dbus/dbus-message.c b/dbus/dbus-message.c
index b191337e..df0ade26 100644
--- a/dbus/dbus-message.c
+++ b/dbus/dbus-message.c
@@ -5778,6 +5778,37 @@ dbus_message_type_from_string (const char *type_str)
     return DBUS_MESSAGE_TYPE_INVALID;
 }
 
+/**
+ * Utility function to convert a D-BUS message type into a
+ * machine-readable string (not translated).
+ *
+ * @code
+ *   DBUS_MESSAGE_TYPE_METHOD_CALL    -> "method_call"
+ *   DBUS_MESSAGE_TYPE_METHOD_RETURN  -> "method_return"
+ *   DBUS_MESSAGE_TYPE_SIGNAL         -> "signal"
+ *   DBUS_MESSAGE_TYPE_ERROR          -> "error"
+ *   DBUS_MESSAGE_TYPE_INVALID        -> "invalid"
+ * @endcode
+ * 
+ */
+const char *
+dbus_message_type_to_string (int type)
+{
+  switch (type)
+    {
+    case DBUS_MESSAGE_TYPE_METHOD_CALL:
+      return "method_call";
+    case DBUS_MESSAGE_TYPE_METHOD_RETURN:
+      return "method_return";
+    case DBUS_MESSAGE_TYPE_SIGNAL:
+      return "signal";
+    case DBUS_MESSAGE_TYPE_ERROR:
+      return "error";
+    default:
+      return "invalid";
+    }
+}
+
 /** @} */
 #ifdef DBUS_BUILD_TESTS
 #include "dbus-test.h"
diff --git a/dbus/dbus-message.h b/dbus/dbus-message.h
index 50ec22c1..e1894c72 100644
--- a/dbus/dbus-message.h
+++ b/dbus/dbus-message.h
@@ -295,6 +295,7 @@ void*       dbus_message_get_data           (DBusMessage      *message,
                                              dbus_int32_t      slot);
 
 int dbus_message_type_from_string (const char *type_str);
+const char * dbus_message_type_to_string (int type);
 
 DBUS_END_DECLS
 
diff --git a/dbus/dbus-string.c b/dbus/dbus-string.c
index 2061e8be..7381dab2 100644
--- a/dbus/dbus-string.c
+++ b/dbus/dbus-string.c
@@ -756,6 +756,30 @@ _dbus_string_copy_data_len (const DBusString  *str,
   return TRUE;
 }
 
+/**
+ * Copies the contents of a DBusString into a different
+ * buffer. The resulting buffer will be nul-terminated.
+ * 
+ * @param str a string
+ * @param buffer a C buffer to copy data to
+ * @param len maximum length of C buffer
+ */
+void
+_dbus_string_copy_to_buffer (const DBusString  *str,
+			     char              *buffer,
+			     int                avail_len)
+{
+  int copy_len;
+  DBUS_CONST_STRING_PREAMBLE (str);
+
+  _dbus_assert (avail_len >= 0);
+
+  copy_len = MIN (avail_len, real->len+1);
+  memcpy (buffer, real->str, copy_len);
+  if (avail_len > 0 && avail_len == copy_len)
+    buffer[avail_len-1] = '\0';
+}
+
 /**
  * Gets the length of a string (not including nul termination).
  *
diff --git a/dbus/dbus-string.h b/dbus/dbus-string.h
index 2dda2b0f..1a0236d4 100644
--- a/dbus/dbus-string.h
+++ b/dbus/dbus-string.h
@@ -88,6 +88,9 @@ dbus_bool_t   _dbus_string_copy_data_len         (const DBusString  *str,
                                                   char             **data_return,
                                                   int                start,
                                                   int                len);
+void          _dbus_string_copy_to_buffer        (const DBusString  *str,
+                                                  char              *buffer,
+						  int                len);
 int           _dbus_string_get_length            (const DBusString  *str);
 dbus_bool_t   _dbus_string_lengthen              (DBusString        *str,
                                                   int                additional_length);
-- 
cgit