timesend.cpp

Unix Socket编程 Unix Socket编程 Unix Socket编程 Unix Socket编程 Unix Socket编程

#include <windows.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <nb30.h>
#pragma comment(lib,"netapi32.lib")
#define MAXSESSIONS 2
#define MAXNAMES 4

UCHAR LanaEnum(LANA_ENUM *lenum)
{
	NCB ncb;
	UCHAR ucRc;
	memset(&ncb,0,sizeof(NCB));
	ncb.ncb_command=NCBENUM;
	ncb.ncb_buffer=(PUCHAR)lenum;
	ncb.ncb_length=sizeof(LANA_ENUM);
	ucRc=Netbios(&ncb);
	return(ucRc);
}

UCHAR RestNCB(UCHAR lana)
{
	NCB ncb;
	UCHAR ucRc;
	memset(&ncb,0,sizeof(NCB));
	ncb.ncb_command=NCBRESET;
	ncb.ncb_callname[0]=MAXSESSIONS;
	ncb.ncb_callname[2]=MAXNAMES;
//	ncb.ncb_callname[3]=TRUE;
	ncb.ncb_lana_num=lana;
	ucRc=Netbios(&ncb);
	return(ucRc);
}

UCHAR AddName(CHAR *Name,UCHAR Lana,UCHAR *NameNum)
{
	NCB ncb;
	memset(&ncb,0,sizeof(NCB));
	ncb.ncb_command=NCBADDNAME;
	ncb.ncb_lana_num=Lana;
	strcpy((char*)ncb.ncb_name,(const char*)Name);	
	Netbios(&ncb);
	*NameNum=ncb.ncb_num;
	return(ncb.ncb_cmd_cplt);
}


UCHAR DeleteName(UCHAR *Name,UCHAR Lana)
{
	NCB ncb;
	memset(&ncb,0,sizeof(NCB));
	ncb.ncb_command=NCBDELNAME;
	ncb.ncb_lana_num=Lana;
	strcpy((char*)ncb.ncb_name,(const char*)Name);
	Netbios(&ncb);
	return(ncb.ncb_cmd_cplt);
}


UCHAR WaitTimeRequest(PNCB pncb,UCHAR Num,UCHAR *pBuffer,UCHAR Lana)
{
	memset(pncb,0,sizeof(NCB));
	pncb->ncb_command=NCBDGRECV;
	pncb->ncb_lana_num=Lana;
	pncb->ncb_num=Num;
	pncb->ncb_buffer=pBuffer;
	pncb->ncb_length=512;
	Netbios(pncb);
	return(pncb->ncb_cmd_cplt);
}

UCHAR SendBaseTime(PNCB pncb,UCHAR Num,UCHAR *pBuffer,WORD Length,UCHAR Lana)
{
	memset(pncb,0,sizeof(NCB));
	pncb->ncb_command=NCBDGSENDBC;
	pncb->ncb_lana_num=Lana;
	pncb->ncb_num=Num;
	pncb->ncb_buffer=pBuffer;
	pncb->ncb_length=Length;
	Netbios(pncb);
	return(pncb->ncb_cmd_cplt);
}


void main()
{
	NCB ServerNcb;
	CHAR ServerName[16];
	UCHAR ServerNameNum;
	UCHAR buff[512];
	LANA_ENUM lenum;
	LPSYSTEMTIME lpSystemTime;
	SYSTEMTIME time;
	lpSystemTime=&time;
	if(LanaEnum(&lenum)!=NRC_GOODRET)
	{
		printf("lanaEnum Error!\n");
		return;
	}
	printf("LanaEnum OK!\n");

	if(RestNCB(lenum.lana[0])!=NRC_GOODRET)
	{
		printf("RestNCB Error!\n");
		return;
	}
    printf("RestNCB OK!\n");	


	strcpy(ServerName,"TimeServer");

	
	if((AddName(ServerName,lenum.lana[0],&ServerNameNum)))
	{
		printf("%d",ServerNcb.ncb_cmd_cplt);
		printf("AddName Error!\n");
		return;
	}
	printf("AddName OK\n");


	for(;;)
	{
		memset(buff,0,512);
		printf("wait for time request...\n");
		if(WaitTimeRequest(&ServerNcb,ServerNameNum,buff,lenum.lana[0])!=NRC_GOODRET)
		{
			printf("Wait Error!\n");
			return;
		}
		printf("Wait OK!\n");
		if(ServerNcb.ncb_cmd_cplt==0)
		{
			GetSystemTime(lpSystemTime);
			if(SendBaseTime(&ServerNcb,ServerNameNum,(UCHAR *)lpSystemTime,sizeof(SYSTEMTIME),lenum.lana[0])!=NRC_GOODRET)
			{
				printf("SendBaseTime Error!\n");
				return;
			}
			printf("SendBaseTime ok!\n");
			printf("OK\n");
		}
	}
}