type cast

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1055 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_stun.c

@@ -99,7 +99,7 @@ SWITCH_DECLARE(void) switch_stun_random_string(char *buf, uint16_t len, char *se
 
 	max = (int)strlen(set) - 1;
 
-	srand(apr_time_now());
+	srand((unsigned int)apr_time_now());
 
 	for(x = 0; x < len; x++) {
 		int j = 1+(int)(max*1.0*rand()/(RAND_MAX+1.0));