common.py 文件源码

def inet_pton(family, addr):
    addr = to_str(addr)
    if family == socket.AF_INET:
        return socket.inet_aton(addr)
    elif family == socket.AF_INET6:
        if '.' in addr:  # a v4 addr
            v4addr = addr[addr.rindex(':') + 1:]
            v4addr = socket.inet_aton(v4addr)
            v4addr = ['%02X' % ord(x) for x in v4addr]
            v4addr.insert(2, ':')
            newaddr = addr[:addr.rindex(':') + 1] + ''.join(v4addr)
            return inet_pton(family, newaddr)
        dbyts = [0] * 8  # 8 groups
        grps = addr.split(':')
        for i, v in enumerate(grps):
            if v:
                dbyts[i] = int(v, 16)
            else:
                for j, w in enumerate(grps[::-1]):
                    if w:
                        dbyts[7 - j] = int(w, 16)
                    else:
                        break
                break
        return b''.join((chr(i // 256) + chr(i % 256)) for i in dbyts)
    else:
        raise RuntimeError("What family?")