only initialize random number generators in one place (bug #4017)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/v1-0@5694 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_random.c

@@ -106,7 +106,6 @@ int unload_module(void)
 
 int load_module(void)
 {
-	srandom((unsigned int)getpid() + (unsigned int)time(NULL));
 	return ast_register_application(app_random, random_exec, random_synopsis, random_descrip);
 }
 

asterisk.c

@@ -1824,6 +1824,12 @@ int main(int argc, char *argv[])
 	signal(SIGCHLD, child_handler);
 	signal(SIGPIPE, SIG_IGN);
 
+	/* ensure that the random number generators are seeded with a different value every time
+	   Asterisk is started
+	*/
+	srand((unsigned int) getpid() + (unsigned int) time(NULL));
+	srandom((unsigned int) getpid() + (unsigned int) time(NULL));
+
 	if (init_logger()) {
 		printf(term_quit());
 		exit(1);

channels/chan_iax2.c

@@ -7020,7 +7020,6 @@ static int reload_config(void)
 	delayreject = 0;
 	globalnotransfer = 0;
 	globalusejitterbuf = 0;
-	srand(time(NULL));
 	delete_users();
 	set_config(config,&dead_sin);
 	prune_peers();