windows driver 写数据到txt

最新推荐文章于 2024-12-09 08:05:19 发布

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最新推荐文章于 2024-12-09 08:05:19 发布

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分类专栏： windows驱动

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本文展示了一个在Windows环境下使用特定API进行文件读写操作的示例代码，包括创建、写入等步骤，并通过Unicode字符串转换为ANSI字符串来完成写入。

HANDLE hFile;
	OBJECT_ATTRIBUTES oa;
	IO_STATUS_BLOCK iosb;
	LARGE_INTEGER li;

	UNICODE_STRING strPath = RTL_CONSTANT_STRING(L"\\??\\E:\\123.txt");
	UNICODE_STRING str = RTL_CONSTANT_STRING(L"我爱你");

	char strWriteInfo[ArrayLength] = {0};
	ANSI_STRING sWrite;

	InitializeObjectAttributes(&oa, &strPath, OBJ_KERNEL_HANDLE, NULL, NULL);
	ZwCreateFile(&hFile,
		GENERIC_READ | GENERIC_WRITE,
		&oa,
		&iosb,
		NULL, 
		FILE_ATTRIBUTE_NORMAL,
		FILE_SHARE_READ,
		FILE_OPEN,
		FILE_SYNCHRONOUS_IO_NONALERT,
		NULL,
		0);

	li.HighPart = -1;
	li.LowPart = FILE_WRITE_TO_END_OF_FILE;

	RtlInitEmptyAnsiString(&sWrite, strWriteInfo, ArrayLength);
	RtlUnicodeStringToAnsiString(&sWrite, &str, TRUE);
	ZwWriteFile(hFile, NULL, NULL, NULL, &iosb, sWrite.Buffer, sWrite.Length, &li, NULL);
	ZwClose(hFile);