2 erothshs

[Haris Kosmidis]

Katarxhn 1 erothsh pou 3exasa se prohgoumeno mail:
ti einai to /dec/zero? kati san /dev/null?

Epeita ososn afora thn erothsh pou eixa kanei sxetika me to pos na
eidopoioume an peftei h ppp sundesh. Eida apo ena biblio (unix network
programming, mallon 8a to exetai diabasei) to parakato programma (mallon
kati analogo kai ego to morfopoihsa gia edo):
int flag=0;
for(;;) {
sigblock(sigmask(SIGHUP));
while(flag==0)
        sigpause(0);
/*Apo edo kai pera kano otidhpote px: printf("Line is down!");
*/

Dhaldh molis entopizei to shma SIGHUP na mou deixnei kati...
Einai sosto?


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