test.c

增加系统功能调用

#include <linux/unistd.h>
#include<stdio.h>
#include<stdlib.h>
#define __NR_filecopy 285
_syscall2(int,filecopy,char*,args,char*,argd)
int errno;

int main()
{
	int i;
	char args[20],argd[20];
	int buf;
	printf("Input the source file name: ");
	scanf("%s",&args);
	printf("Input the target file name: ");
	scanf("%s",&argd);
	if(!strcmp(args,argd)){
		printf("The name has been used!\n");
		return 0;
	}
	i=filecopy(args,argd);
	printf("ok!\n");
	return 0;
}