string inet_ntoa6(in6_addr_t *addr)

The inet_ntoa6 function takes a pointer addr to an IPv6 address and returns it as an RFC 1884 convention 2 string, with lowercase hexadecimal digits. The returned string is allocated out of scratch memory and is therefore valid only during the clause. If insufficient scratch memory is available, inet_ntoa6 doesn't run and an error is generated.