From b91309c62971ecb1484a5010779fb95e185199d8 Mon Sep 17 00:00:00 2001
From: Diogo Ferreira <diogo@underdev.org>
Date: Sat, 21 Jul 2007 16:32:53 +0100
Subject: [PATCH] Added ABI checking when loading plugins.

---
 src/includes/teleport.h |  2 ++
 src/plugin.c            | 13 +++++++++++++
 src/plugins/beagle.c    |  5 +++++
 src/plugins/tracker.c   |  5 +++++
 4 files changed, 25 insertions(+)

diff --git a/src/includes/teleport.h b/src/includes/teleport.h
index 8fbca6c..3e371bf 100644
--- a/src/includes/teleport.h
+++ b/src/includes/teleport.h
@@ -28,6 +28,8 @@
 #include <glib.h>
 #include <gmodule.h>
 
+#define TELEPORT_ABI 20070721
+
 
 typedef struct _TeleportAction TeleportAction;
 typedef struct _TeleportPlugin TeleportPlugin;
diff --git a/src/plugin.c b/src/plugin.c
index 576dd1c..06e3ac7 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -50,9 +50,22 @@ teleport_load_plugin (const gchar* name)
 	if (dlm)
 	{
 		GetVTableProc getVTable;
+		int (*getAbi)();
 
 		g_log (NULL, G_LOG_LEVEL_DEBUG, "%s: Loaded", name);
 
+		if (!g_module_symbol(dlm, "teleport_get_abi", (gpointer)(&getAbi))
+			|| (*getAbi)() != TELEPORT_ABI)
+		{
+			g_log (NULL, G_LOG_LEVEL_DEBUG, "%s: ABI mismatch, recompile the plugin", name);
+			g_module_close (dlm);
+			g_free (pluginPath);
+			g_free (plug);
+
+			return NULL;
+
+		}
+
 		if (!g_module_symbol(dlm, "teleportGetVTable", (gpointer)(&getVTable)))
 		{
 			g_log (NULL, G_LOG_LEVEL_DEBUG, "%s: Unable to find teleportGetVTable", name);
diff --git a/src/plugins/beagle.c b/src/plugins/beagle.c
index 2c78444..49f5244 100644
--- a/src/plugins/beagle.c
+++ b/src/plugins/beagle.c
@@ -129,6 +129,11 @@ TeleportPluginVTable beagleVTable = {
 	beagle_cancel_query
 };
 
+int teleport_get_abi ()
+{
+	    return TELEPORT_ABI;
+}
+
 TeleportPluginVTable* teleportGetVTable () 
 {
 	return &beagleVTable;
diff --git a/src/plugins/tracker.c b/src/plugins/tracker.c
index 067701d..a53771a 100644
--- a/src/plugins/tracker.c
+++ b/src/plugins/tracker.c
@@ -128,6 +128,11 @@ TeleportPluginVTable trackerVTable = {
 	tracker_cancel_query
 };
 
+int teleport_get_abi ()
+{
+	return TELEPORT_ABI;
+}
+
 TeleportPluginVTable* teleportGetVTable ()
 {
 	return &trackerVTable;
-- 
2.11.4.GIT