opecard.c

公关系统服务器后台程序

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>

#include <fcntl.h>
#include "cardio.h"

int getNumFromCard(char *devName)
{

#if DEBUG
	return 20;
#else
	int cardFd;
	int readv;
	cardFd=open(devName,0666);
	if(cardFd<0)
	{
		printf("open %s failed\n",devName);
		return 1;
	}

	ioctl(cardFd,CARD_IOC_GETNUM,&readv);
	close(cardFd);
	
	return readv;
#endif
}

#define MACRO_GROUP(a,b,c,d,e,f)		\
	tbuf[0]=buf[a];	tbuf[1]=buf[b];		\
	tbuf[2]=buf[c];	tbuf[3]=buf[d];		\
	if(write(cardFd,tbuf,4)<0)		\
		step++;				\
	if(read(cardFd,tbuf,2)<0)		\
		step++;				\
	rbuf[e]=tbuf[0];			\
	rbuf[f]=tbuf[1];

int cryptCard(char *devName,unsigned char *buf,unsigned char *rbuf)
{
	int cardFd,step=0;

	unsigned char tbuf[4];

	cardFd=open(devName,0x666);
	if(cardFd<0)
		return step++;

	MACRO_GROUP(3,16,4,25,0,1)
	MACRO_GROUP(0,20,12,22,2,3)
	MACRO_GROUP(27,28,14,31,4,5)
	MACRO_GROUP(15,23,13,30,6,7)
	MACRO_GROUP(11,29,8,26,8,9)
	MACRO_GROUP(6,10,9,21,10,11)
	MACRO_GROUP(2,19,1,17,12,13)
	MACRO_GROUP(5,18,7,24,14,15)

	close(cardFd);
	return step;

}