Linux Ðźż¯ dzÎö
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Ðźż¯--signel set,Æäʵ¾ÍÊǽ«¶à¸öÐźŷÅÔÚ¼¯ºÏÖнøÐм¯ÖеĴ¦Àí¡£POSIX.1¶¨ÒåÁËsigset_tÒÔ°üºÒ»¸öÐźż¯£¬²¢ÇÒ¶¨ÒåÁËÎå¸ö´¦ÀíÐźŵĺ¯Êý£º
int sigemptyset(sigset_t *set);
int sigfillset(sigset_t *set);
int sigaddset(sigset_t *set,int signo);
int sigdelset(sigset_t *set,int signo)
int sigismember(const sigset_t *set,int signo);
»¹ÓÐÒ»¸öÖØÒªµÄº¯Êý£ºint sigprocmask(int how,const sigset_t *restrict set,sigset_t *restrict oset);
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static void sig_quit(int); //ÐźŴ¦Àíº¯Êý
int main( )
{
sigset_t newmask,oldmask,pendmask;
if(signal(SIGQUIT,sig_quit)==SIG_ERR)
err_sys("can not catch SIGQUIT");
-----------------------------------------------------------------------------------------------------------
sigemptyset(&newmask); //Çå¿ÕÐźÅÑÚÂ뼯newmask,²»×èÈûÈκÎÐźÅ
sigaddset(&newmask,SIGQUIT); //½«SIGQUITÐźŷÅÈëÐźż¯newmaskÖÐÈ¥
if(sigprocmask(SIG_BLOCK,&newmask,&oldmask)<0) //½«oldmask ºÍnewmaskºÏ²¢
err_sys("SIG_BLOCK error"); //µ±Ç°ÐÅºÅÆÁ±Î×Ö·ÅÔÚnewmaskÀÒÔǰµÄ·ÅÔÚoldmaskÀï
sleep(5);
if(sigpending(&pendmask)<0) //±£´æËùÓб»×èÈûµÄÐźţ¬±¾Àý¼´±£´æSIGQUITµ½pendmaskÖÐÈ¥
 
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Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
ÔÌû¼ûhttp://www.inthirties.com/thread-685-1-1.html
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debian lenny , my favorite
a. vim /etc/sysctl.conf:
modify net.ipv4.ip_forward = 1
b. flush route table:
iptables -F
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
c. open NAT services:
&nb ......