Add simple utility to validate paths

diff --git a/src/dbus.c b/src/dbus.c
index b2486f4..5308ab1 100644 (file)
--- a/src/dbus.c
+++ b/src/dbus.c
@@ -320,6 +320,50 @@ void __ofono_dbus_pending_reply(DBusMessage **msg, DBusMessage *reply)
        *msg = NULL;
 }
 
+gboolean __ofono_dbus_valid_object_path(const char *path)
+{
+       unsigned int i;
+       char c = '\0';
+
+       if (path == NULL)
+               return FALSE;
+
+       if (path[0] == '\0')
+               return FALSE;
+
+       if (path[0] && !path[1] && path[0] == '/')
+               return TRUE;
+
+       if (path[0] != '/')
+               return FALSE;
+
+       for (i = 0; path[i]; i++) {
+               if (path[i] == '/' && c == '/')
+                       return FALSE;
+
+               c = path[i];
+
+               if (path[i] >= 'a' && path[i] <= 'z')
+                       continue;
+
+               if (path[i] >= 'A' && path[i] <= 'Z')
+                       continue;
+
+               if (path[i] >= '0' && path[i] <= '9')
+                       continue;
+
+               if (path[i] == '_' || path[i] == '/')
+                       continue;
+
+               return FALSE;
+       }
+
+       if (path[i-1] == '/')
+               return FALSE;
+
+       return TRUE;
+}
+
 DBusConnection *ofono_dbus_get_connection()
 {
        return g_connection;

diff --git a/src/ofono.h b/src/ofono.h
index bf31531..ffafae8 100644 (file)
--- a/src/ofono.h
+++ b/src/ofono.h
@@ -53,6 +53,8 @@ DBusMessage *__ofono_error_sim_not_ready(DBusMessage *msg);
 
 void __ofono_dbus_pending_reply(DBusMessage **msg, DBusMessage *reply);
 
+gboolean __ofono_dbus_valid_object_path(const char *path);
+
 #include <ofono/types.h>
 
 #include <ofono/plugin.h>