static int while_exit_exec(struct ast_channel *chan, void *data) { return _while_exec(chan, data, 2); }
static int while_end_exec(struct cw_channel *chan, int argc, char **argv) { return _while_exec(chan, argc, argv, 1); }
static int while_end_exec(struct ast_channel *chan, const char *data) { return _while_exec(chan, data, 1); }