mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-13 01:10:24 +00:00
140 lines
3.8 KiB
C++
140 lines
3.8 KiB
C++
// vim:set ts=4 sw=4 ai:
|
|
|
|
/*
|
|
* Copyright (c) 2010-2013 BitTorrent, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
|
|
#include "utp_types.h"
|
|
#include "utp_hash.h"
|
|
#include "utp_packedsockaddr.h"
|
|
|
|
#include "libutp_inet_ntop.h"
|
|
|
|
byte PackedSockAddr::get_family() const
|
|
{
|
|
#if defined(__sh__)
|
|
return ((_sin6d[0] == 0) && (_sin6d[1] == 0) && (_sin6d[2] == htonl(0xffff)) != 0) ?
|
|
AF_INET : AF_INET6;
|
|
#else
|
|
return (IN6_IS_ADDR_V4MAPPED(&_in._in6addr) != 0) ? AF_INET : AF_INET6;
|
|
#endif // defined(__sh__)
|
|
}
|
|
|
|
bool PackedSockAddr::operator==(const PackedSockAddr& rhs) const
|
|
{
|
|
if (&rhs == this)
|
|
return true;
|
|
if (_port != rhs._port)
|
|
return false;
|
|
return memcmp(_sin6, rhs._sin6, sizeof(_sin6)) == 0;
|
|
}
|
|
|
|
bool PackedSockAddr::operator!=(const PackedSockAddr& rhs) const
|
|
{
|
|
return !(*this == rhs);
|
|
}
|
|
|
|
uint32 PackedSockAddr::compute_hash() const {
|
|
return utp_hash_mem(&_in, sizeof(_in)) ^ _port;
|
|
}
|
|
|
|
void PackedSockAddr::set(const SOCKADDR_STORAGE* sa, socklen_t len)
|
|
{
|
|
if (sa->ss_family == AF_INET) {
|
|
assert(len >= sizeof(sockaddr_in));
|
|
const sockaddr_in *sin = (sockaddr_in*)sa;
|
|
_sin6w[0] = 0;
|
|
_sin6w[1] = 0;
|
|
_sin6w[2] = 0;
|
|
_sin6w[3] = 0;
|
|
_sin6w[4] = 0;
|
|
_sin6w[5] = 0xffff;
|
|
_sin4 = sin->sin_addr.s_addr;
|
|
_port = ntohs(sin->sin_port);
|
|
} else {
|
|
assert(len >= sizeof(sockaddr_in6));
|
|
const sockaddr_in6 *sin6 = (sockaddr_in6*)sa;
|
|
_in._in6addr = sin6->sin6_addr;
|
|
_port = ntohs(sin6->sin6_port);
|
|
}
|
|
}
|
|
|
|
PackedSockAddr::PackedSockAddr(const SOCKADDR_STORAGE* sa, socklen_t len)
|
|
{
|
|
set(sa, len);
|
|
}
|
|
|
|
PackedSockAddr::PackedSockAddr(void)
|
|
{
|
|
SOCKADDR_STORAGE sa;
|
|
socklen_t len = sizeof(SOCKADDR_STORAGE);
|
|
memset(&sa, 0, len);
|
|
sa.ss_family = AF_INET;
|
|
set(&sa, len);
|
|
}
|
|
|
|
SOCKADDR_STORAGE PackedSockAddr::get_sockaddr_storage(socklen_t *len = NULL) const
|
|
{
|
|
SOCKADDR_STORAGE sa;
|
|
const byte family = get_family();
|
|
if (family == AF_INET) {
|
|
sockaddr_in *sin = (sockaddr_in*)&sa;
|
|
if (len) *len = sizeof(sockaddr_in);
|
|
memset(sin, 0, sizeof(sockaddr_in));
|
|
sin->sin_family = family;
|
|
sin->sin_port = htons(_port);
|
|
sin->sin_addr.s_addr = _sin4;
|
|
} else {
|
|
sockaddr_in6 *sin6 = (sockaddr_in6*)&sa;
|
|
memset(sin6, 0, sizeof(sockaddr_in6));
|
|
if (len) *len = sizeof(sockaddr_in6);
|
|
sin6->sin6_family = family;
|
|
sin6->sin6_addr = _in._in6addr;
|
|
sin6->sin6_port = htons(_port);
|
|
}
|
|
return sa;
|
|
}
|
|
|
|
// #define addrfmt(x, s) x.fmt(s, sizeof(s))
|
|
cstr PackedSockAddr::fmt(str s, size_t len) const
|
|
{
|
|
memset(s, 0, len);
|
|
const byte family = get_family();
|
|
str i;
|
|
if (family == AF_INET) {
|
|
INET_NTOP(family, (uint32*)&_sin4, s, len);
|
|
i = s;
|
|
while (*++i) {}
|
|
} else {
|
|
i = s;
|
|
*i++ = '[';
|
|
INET_NTOP(family, (in6_addr*)&_in._in6addr, i, len-1);
|
|
while (*++i) {}
|
|
*i++ = ']';
|
|
}
|
|
snprintf(i, len - (i-s), ":%u", _port);
|
|
return s;
|
|
}
|