myftp.c

linux下守护进程的实现源代码对于学习守护进程有很大帮助

#include <unistd.h>
#include <sys/types.h>


int main(int argc,char *argv[])
{
	pid_t child;
	int fd[2];
	pipe(fd);
	char buffer[128];
	memset(buffer,'\0',sizeof(buffer));
	child=fork();
	if(child==0)
	{
		close(fd[0]);
		dup2(fd[1],1);
		execlp("pidof","pidof",argv[0],0);
		exit(0);
	}
	else if (child>0)
	{
		close(fd[1]);
		read(fd[0],buffer,128);
		printf("pidof result:%s\n",buffer);
	}
	while(1)
	{
		sleep(1);
	}
	return 0;
}