字符串的连接 – exchen's blog

/*字符串的连接
by exchen
2009-10-02
*/
#include <ntddk.h>

#define BUFFER_SIZE 256   

VOID
DriverUnload(
IN PDRIVER_OBJECT  DriverObject
)
{
	DbgPrint("驱动已经被停止了\n");
}

NTSTATUS
DriverEntry(
IN PDRIVER_OBJECT  DriverObject,
IN PUNICODE_STRING  RegistryPath
)
{
	UNICODE_STRING usDes;
	UNICODE_STRING usScr;

	RtlInitUnicodeString(&usScr,L"My source string");

	usDes.Buffer=(PWSTR)ExAllocatePool(PagedPool,BUFFER_SIZE);
	usDes.MaximumLength=BUFFER_SIZE;

	RtlCopyUnicodeString(&usDes,&usScr);//拷贝内容

	if (STATUS_BUFFER_TOO_SMALL ==RtlAppendUnicodeToString(&usDes,L"My Append String"))
	{
		DbgPrint("STATUS_BUFFER_TOO_SMALL");
	}

	DbgPrint("连接为:%wZ"    ,&usDes);        //打印连接的内容

	RtlFreeUnicodeString(&usDes);            //释放分配的空间

	DriverObject->DriverUnload = DriverUnload;
	return STATUS_SUCCESS;
}

/*字符串的连接

by exchen

2009-10-02

#include <ntddk.h>

#define BUFFER_SIZE 256

VOID

DriverUnload(

IN PDRIVER_OBJECT DriverObject

)

{

DbgPrint("驱动已经被停止了\n");

}

NTSTATUS

DriverEntry(

IN PDRIVER_OBJECT DriverObject,

IN PUNICODE_STRING RegistryPath

)

{

UNICODE_STRING usDes;

UNICODE_STRING usScr;

RtlInitUnicodeString(&usScr,L"My source string");

usDes.Buffer=(PWSTR)ExAllocatePool(PagedPool,BUFFER_SIZE);

usDes.MaximumLength=BUFFER_SIZE;

RtlCopyUnicodeString(&usDes,&usScr);//拷贝内容

if (STATUS_BUFFER_TOO_SMALL ==RtlAppendUnicodeToString(&usDes,L"My Append String"))

{

DbgPrint("STATUS_BUFFER_TOO_SMALL");

}

DbgPrint("连接为:%wZ" ,&usDes); //打印连接的内容

RtlFreeUnicodeString(&usDes); //释放分配的空间

DriverObject->DriverUnload = DriverUnload;

return STATUS_SUCCESS;

}

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