[evolution] Sanitize values from GConf before using them

[Milan Crha <mcrha src gnome org>]

commit d4def43e4d7fba2b8a123b7d11af8170b0f93a1b
Author: Milan Crha <mcrha redhat com>
Date:   Mon Apr 27 12:13:35 2009 +0200

    Sanitize values from GConf before using them
    
    	** Fix for bug #491755
    
    	* gui/alarm-notify/config-data.c:
    	(config_data_set_last_notification_time),
    	(config_data_get_last_notification_time):
    	Sanitize values from GConf before using them.
---
 calendar/ChangeLog                      |    9 +++++++++
 calendar/gui/alarm-notify/config-data.c |   14 ++++++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/calendar/ChangeLog b/calendar/ChangeLog
index 793c4d7..feba01b 100644
--- a/calendar/ChangeLog
+++ b/calendar/ChangeLog
@@ -1,5 +1,14 @@
 2009-04-27  Milan Crha  <mcrha redhat com>
 
+	** Fix for bug #491755
+
+	* gui/alarm-notify/config-data.c:
+	(config_data_set_last_notification_time),
+	(config_data_get_last_notification_time):
+	Sanitize values from GConf before using them.
+
+2009-04-27  Milan Crha  <mcrha redhat com>
+
 	** Fix for bug #575773
 
 	* gui/e-calendar-table.etspec:
diff --git a/calendar/gui/alarm-notify/config-data.c b/calendar/gui/alarm-notify/config-data.c
index 81cbc34..5a05cfd 100644
--- a/calendar/gui/alarm-notify/config-data.c
+++ b/calendar/gui/alarm-notify/config-data.c
@@ -259,7 +259,7 @@ void
 config_data_set_last_notification_time (time_t t)
 {
 	GConfClient *client;
-	time_t current_t;
+	time_t current_t, now = time (NULL);
 
 	g_return_if_fail (t != -1);
 
@@ -269,7 +269,7 @@ config_data_set_last_notification_time (time_t t)
 	/* we only store the new notification time if it is bigger
 	   than the already stored one */
 	current_t = gconf_client_get_int (client, KEY_LAST_NOTIFICATION_TIME, NULL);
-	if (t > current_t)
+	if (t > current_t || current_t > now)
 		gconf_client_set_int (client, KEY_LAST_NOTIFICATION_TIME, t, NULL);
 }
 
@@ -290,8 +290,14 @@ config_data_get_last_notification_time (void)
 		return -1;
 
 	value = gconf_client_get_without_default (client, KEY_LAST_NOTIFICATION_TIME, NULL);
-	if (value)
-		return (time_t) gconf_value_get_int (value);
+	if (value) {
+		time_t val = (time_t) gconf_value_get_int (value), now = time (NULL);
+
+		if (val > now)
+			val = now;
+
+		return val;
+	}
 
 	return time (NULL);
 }