def gethostbyaddr(ip): # XXX use gethostbyaddr_r() if available, and/or use locks if not addr = makeipaddr(ip) p, size = addr.lock_in_addr() try: hostent = _c.gethostbyaddr(p, size, addr.family) finally: addr.unlock() return gethost_common(ip, hostent, addr)
def getnameinfo(address, flags): if address.family != _c.AF_INET: raise RSocketError("unknown address family") sockaddr = address.lock(_c.sockaddr_in) try: sin_port = sockaddr.c_sin_port sin_addr = sockaddr.c_sin_addr v4a = rffi.cast(lltype.Unsigned, _c.ntohl(sin_addr.c_s_addr)) if (v4a & r_uint(0xf0000000) == r_uint(0xe0000000) or # IN_MULTICAST() v4a & r_uint(0xe0000000) == r_uint(0xe0000000)): # IN_EXPERIMENTAL() flags |= NI_NUMERICHOST # XXX Why does this work in CPython? # v4a >>= 24 # = IN_CLASSA_NSHIFT # if v4a in (0, 127): # = IN_LOOPBACKNET # flags |= NI_NUMERICHOST numsize = _c.INET_ADDRSTRLEN serv = _getservicename(sin_port, flags) if not (flags & NI_NUMERICHOST): p = rffi.cast(rffi.VOIDP, sin_addr) hostent = _c.gethostbyaddr(p, rffi.sizeof(_c.in_addr), sockaddr.c_sin_family) else: hostent = None if hostent: from pypy.rlib.rsocket import gethost_common host, _, _ = gethost_common("", hostent) else: host = rffi.charp2str(_c.inet_ntoa(sin_addr)) finally: address.unlock() return host, serv