ObjFW  Check-in [fc73801932]

Overview
Comment:Better length checks for write / send calls
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SHA3-256: fc738019321eacc87bea62d5074e9cbf41d886b1a3c25a0f67ddf39f55ce9aef
User & Date: js on 2015-10-04 11:30:52
Other Links: manifest | tags
Context
2015-10-04
11:55
Move OF_ASSUME_NONNULL_BEGIN after all includes check-in: 01088a20a4 user: js tags: trunk
11:30
Better length checks for write / send calls check-in: fc73801932 user: js tags: trunk
11:11
Special cases for the Wii's weird network stack check-in: 4cecf82254 user: js tags: trunk
Changes
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Modified src/OFFile.m from [568732b489] to [b4e2a23749].

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		     length: (size_t)length
{
	if (_fd == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

#ifndef _WIN32
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, length) < length)
	if (write(_fd, buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	if (length > UINT_MAX)
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, (unsigned int)length) < length)
	if (write(_fd, buffer, (int)length) != (int)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#endif
}

- (of_offset_t)lowlevelSeekToOffset: (of_offset_t)offset
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Modified src/OFProcess.m from [dc696d6c83] to [09488f3c9c].

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		     length: (size_t)length
{
#ifndef _WIN32
	if (_writePipe[1] == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_writePipe[1], buffer, length) < length)
	if (write(_writePipe[1], buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	DWORD ret;

	if (length > UINT32_MAX)
		@throw [OFOutOfRangeException exception];

	if (_writePipe[1] == NULL || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

	if (!WriteFile(_writePipe[1], buffer, (DWORD)length, &ret, NULL) ||
	    ret < length) {
	    ret != (DWORD)length) {
		int errNo = 0;

		if (GetLastError() == ERROR_BROKEN_PIPE)
			errNo = EPIPE;

		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
︙

Modified src/OFStdIOStream.m from [a3654b4d40] to [8e10193c2f].

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		     length: (size_t)length
{
	if (_fd == -1 || _atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length];

#ifndef _WIN32
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, length) < length)
	if (write(_fd, buffer, length) != (ssize_t)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#else
	if (length > UINT_MAX)
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (write(_fd, buffer, (unsigned int)length) < length)
	if (write(_fd, buffer, (int)length) != (int)length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: errno];
#endif
}

- (int)fileDescriptorForReading
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Modified src/OFStreamSocket.m from [d996f514e3] to [5f9b6a238d].

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	if (_atEndOfStream)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
							     errNo: ENOTCONN];

#ifndef _WIN32
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (send(_socket, buffer, length, 0) < length)
	if (send(_socket, buffer, length, 0) != (ssize_t)length)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: of_socket_errno()];
#else
	if (length > UINT_MAX)
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (send(_socket, buffer, (unsigned int)length, 0) < length)
	if (send(_socket, buffer, (int)length, 0) != (int)length)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: of_socket_errno()];
#endif
}
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Modified src/OFUDPSocket.m from [182b0b3dfd] to [3c90c2bfad].

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	    length: (size_t)length
	  receiver: (const of_udp_socket_address_t*)receiver
{
	if (_socket == INVALID_SOCKET)
		@throw [OFNotOpenException exceptionWithObject: self];

#ifndef _WIN32
	if (length > SSIZE_MAX)
		@throw [OFOutOfRangeException exception];

	if (sendto(_socket, buffer, length, 0,
	    (struct sockaddr*)&receiver->address, receiver->length) < length)
	    (struct sockaddr*)&receiver->address,
	    receiver->length) != (ssize_t)length)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: of_socket_errno()];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if (sendto(_socket, buffer, (int)length, 0,
	    (struct sockaddr*)&receiver->address, receiver->length) < length)
	    (struct sockaddr*)&receiver->address,
	    receiver->length) != (int)length)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: of_socket_errno()];
#endif
}
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Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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