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¡¡¡¡init_daemon();//³õʼ»¯ÎªDaemon
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#include
#include
#include
#include
#include
void
 init_daemon(void
)
{
int
 pid;
int
 i;
if
(pid=fork())
exit
(0);//ÊǸ¸½ø³Ì£¬½áÊø¸¸½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//ÊǵÚÒ»×Ó½ø³Ì£¬ºǫ́¼ÌÐøÖ´ÐÐ
setsid();//µÚÒ»×Ó½ø³Ì³ÉΪеĻỰ×鳤ºÍ½ø³Ì×鳤
//²¢Óë¿ØÖÆÖն˷ÖÀë
if
(pid=fork())
exit
(0);//ÊǵÚÒ»×Ó½ø³Ì£¬½áÊøµÚÒ»×Ó½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//Êǵڶþ×Ó½ø³Ì£¬¼ÌÐø
//µÚ¶þ×Ó½ø³Ì²»ÔÙÊǻỰ×鳤
for
(i=0;i< NOFILE;++i)//¹Ø±Õ´ò¿ªµÄÎļþÃèÊö·û
close
(i);
chdir("/tmp"
);//¸Ä±ä
¹¤×÷Ŀ¼µ½/tmp
umask(0);//ÖØÉèÎļþ´´½¨ÑÚÄ£
return
;
}