tcp44daemon.c

LinuxNetProgramming Linux网络编程基础实例

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

void main(void)
{ 
    pid_t pid; 
    pid = fork(); 
    if (pid>0) { 
      printf("daemon on duty!\n"); 
      exit(0); 
    } else 
    if (pid<0) { 
    printf("Can't fork!\n"); 
    exit(-1); 
    } 
    for (;;) { 
      printf("I am the daemon!\n"); 
      sleep(3); 
      /* do something your own here */ 
    } 
}