name
    A pointer to a null-terminated character string containing the
    name or an alias of the host being sought.
 ret
    A pointer to a hostent struct which will be filled in on success.
 buffer
    A pointer to a temporary work buffer.
 buflen
    The size of buffer.
 result
    After a successful call, result will point to the result. In
    case of an error or if no entry is found, result will be NULL.
 h_errnop
    A pointer to a variable in which to store error numbers.