Hi,
I am Italian student, so sorry for my bad english.
I would understand some things about functions in the title.
I have to check if some ICMP Packets are arrived, so
Now I am ready to use Kevent function
I can be sure that Nev when is >0 is equal to ready decriptors and that these are placed in events_trig?
At last, if I send a Pkt to a IP that is down the descriptor in kqueue never returns?
Bye
Sorry for bad english
Good Evening
I am Italian student, so sorry for my bad english.
I would understand some things about functions in the title.
I have to check if some ICMP Packets are arrived, so
Code:
int kqueue_descr = kqueue(); /* Descriptor */
if( kqueue_descr == -1)
{
perror("Error in Kqueue: ");
abort_multi_ping();
}
/* we need to set some parameters of kqueue */
for( i= 0; i< how_many_targets; i++)
EV_SET(&events_list[i],targets[i].sockets, EVFILT_READ,EV_ADD | EV_ENABLE|
Code:
/* Now we are waiting for a ready descriptor */
nev = kevent( kqueue_descr, events_list, how_many_targets,
events_trig, how_many_targets,
&tmout);
/* Here kevent has returned, we need understand why ... */
/* ... so we are checking for some errors ... */
for ( index = 0; index < nev; index++)
{
if ( events_trig [index].flags & EV_ERROR)
{
fprintf(stderr, "EV_ERROR: %s\n", strerror(events_trig[index].data));
abort_multi_ping();
}
}
/* ... No errors, so we have to understand what descriptor are ready ... */
gettimeofday(&now, NULL); /* TimeStamp */
printf("\n NEV: %d",nev);
for( index = 0 ; index < nev; index++)
{
for( who = 0; who < how_many_targets; who ++)
if( targets[who].sockets == events_trig[index].ident)
break;
if( how_many_targets == who )
abort_multi_ping();At last, if I send a Pkt to a IP that is down the descriptor in kqueue never returns?
Bye
Sorry for bad english
Good Evening
