ObjFW  Diff

/*
 * Copyright (c) 2008-2022 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *

#import "OFRunLoop+Private.h"
#import "OFSocket.h"
#import "OFSocket+Private.h"
#import "OFString.h"
#import "OFTCPSocketSOCKS5Connector.h"
#import "OFThread.h"

#import "OFAlreadyConnectedException.h"
#import "OFBindIPSocketFailedException.h"
#import "OFGetOptionFailedException.h"
#import "OFNotImplementedException.h"
#import "OFNotOpenException.h"
#import "OFSetOptionFailedException.h"

static const OFRunLoopMode connectRunLoopMode =

			    errNo: (int *)errNo
{
#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	int flags;
#endif

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyConnectedException exceptionWithSocket: self];

	if ((_socket = socket(
	    ((struct sockaddr *)&address->sockaddr)->sa_family,
	    SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle) {
		*errNo = OFSocketErrNo();
		return false;
	}

			   block: (delegate == nil ? block : NULL)] autorelease]
	    startWithRunLoopMode: runLoopMode];

	objc_autoreleasePoolPop(pool);
}
#endif

- (uint16_t)bindToHost: (OFString *)host port: (uint16_t)port
{
	const int one = 1;
	void *pool = objc_autoreleasePoolPush();
	OFData *socketAddresses;
	OFSocketAddress address;
#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	int flags;
#endif

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyConnectedException exceptionWithSocket: self];

	if (_SOCKS5Host != nil)
		@throw [OFNotImplementedException exceptionWithSelector: _cmd
								 object: self];

	socketAddresses = [[OFThread DNSResolver]
	    resolveAddressesForHost: host

			while (rnd < 1024)
				rnd = (uint16_t)rand();

			OFSocketAddressSetIPPort(&address, rnd);

			if ((ret = bind(_socket,
			    (struct sockaddr *)&address.sockaddr,
			    address.length)) == 0) {
				port = rnd;
				break;
			}

			if (OFSocketErrNo() != EADDRINUSE) {
				int errNo = OFSocketErrNo();

				closesocket(_socket);
				_socket = OFInvalidSocketHandle;

				@throw [OFBindIPSocketFailedException
				    exceptionWithHost: host
						 port: port
					       socket: self
						errNo: errNo];
			}
		}
	}
#endif

	objc_autoreleasePoolPop(pool);

	if (port > 0)
		return port;

#if !defined(OF_HPUX) && !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
	memset(&address, 0, sizeof(address));

	address.length = (socklen_t)sizeof(address.sockaddr);
	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPSocketFailedException exceptionWithHost: host
								   port: port
								 socket: self
								  errNo: errNo];
	}

	switch (((struct sockaddr *)&address.sockaddr)->sa_family) {
	case AF_INET:
		return OFFromBigEndian16(address.sockaddr.in.sin_port);

# ifdef OF_HAVE_IPV6
	case AF_INET6:
		return OFFromBigEndian16(address.sockaddr.in6.sin6_port);

# endif
	default:
		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPSocketFailedException
		    exceptionWithHost: host
				 port: port
			       socket: self
				errNo: EAFNOSUPPORT];
	}
#else
	closesocket(_socket);
	_socket = OFInvalidSocketHandle;
	@throw [OFBindIPSocketFailedException exceptionWithHost: host
							   port: port
							 socket: self
							  errNo: EADDRNOTAVAIL];
#endif
}

#if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
- (void)setSendsKeepAlives: (bool)sendsKeepAlives
{
	int v = sendsKeepAlives;