beep.c

#include
#include
#include
#include
#include
#include
#include
#include

void goback(void)
{
        int i=0;
        pid_t pid;

        chdir("/");

        pid=fork();
        if (pid<0) {
                perror("fork");
                exit(1);
        } else if (pid>0)
                exit(0);
        setsid();

        syslog(LOG_INFO|LOG_LOCAL2,"%s,%d","The deamon is started!!!\n",getpid());
}

int main(void)
{
        int ret;
        int fd;

        goback();
        fd=open("/dev/console",O_RDWR|O_NOCTTY);
        if(fd<0) {
                perror("open console");
                exit(1);
        }
        ret=write(fd,"\007\007\007\007",strlen("\007\007\007\007"));
        if(ret<0) {
                perror("write");
                exit(1);
        }

        while(1)
                sleep(1);
        return 0;

}