stealth.c

来自「linux unix 入门代码上,是关于初级入门的,经典代码」· C语言 代码 · 共 37 行

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>

int
main()
{
	int fd;
	char readbuf[64];

	fd=open("/tmp/stealth.tmp",O_RDWR|O_CREAT, 0600);
	if (fd==-1) {
		perror("open");
		exit(1);
	}

	printf("Created.\n");
	getchar();

	unlink("/tmp/stealth.tmp");

	printf("Unlinked.\n");
	getchar();

	write(fd,"HELLO",6);

	lseek(fd,0,SEEK_SET);

	read(fd,readbuf,64);

	printf("%s\n",readbuf);

	close(fd);

	exit(0);
}