traverse_string
ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar);
if (traverse_string(in, len, inform, type_str, &mask) < 0) {
if (traverse_string(in, len, inform, out_utf8, &outlen) < 0) {
traverse_string(in, len, inform, cpyfunc, &p);
static int traverse_string(const unsigned char *p, int len, int inform,