utf8_to_utf16
utf8_to_utf16(xname, ent->ent_name, __arraycount(ent->ent_name));
void utf8_to_utf16(const uint8_t *, uint16_t *, size_t);
utf8_to_utf16((const uint8_t *)gpt_nv[t].d, b, s / sizeof(*b));
utf8_to_utf16(name, ent->ent_name, __arraycount(ent->ent_name));
utf8_to_utf16((const uint8_t *)s, ent.ent_name,
len = utf8_to_utf16(unicn, namelen,
size_t utf8_to_utf16(uint16_t *, size_t, const char *, size_t, int, int *);