int main(int argc, char **argv)
{
fd_set read_fdset, write_fdset;
int i, opt;
int max;
sigset_t chld_set;
while ((opt=getopt(argc, argv, "q")) != -1) {
switch (opt) {
case 'q':
opt_quiet = 1;
break;
default: /* '?' */
fprintf(stderr, "usage: %s [-q] domainid domain-name [default user]\n", argv[0]);
exit(1);
}
}
if (argc - optind < 2 || argc - optind > 3) {
fprintf(stderr, "usage: %s [-q] domainid domain-name [default user]\n", argv[0]);
exit(1);
}
remote_domain_id = atoi(argv[optind]);
remote_domain_name = argv[optind+1];
if (argc - optind >= 3)
default_user = argv[optind+2];
init(remote_domain_id);
sigemptyset(&chld_set);
sigaddset(&chld_set, SIGCHLD);
signal(SIGCHLD, sigchld_handler);
/*
* The main event loop. Waits for one of the following events:
* - message from client
* - message from agent
* - new client
* - child exited
*/
for (;;) {
max = fill_fdsets_for_select(&read_fdset, &write_fdset);
if (libvchan_buffer_space(vchan) <= (int)sizeof(struct msg_header))
FD_ZERO(&read_fdset); // vchan full - don't read from clients
sigprocmask(SIG_BLOCK, &chld_set, NULL);
if (child_exited)
reap_children();
wait_for_vchan_or_argfd(vchan, max, &read_fdset, &write_fdset);
sigprocmask(SIG_UNBLOCK, &chld_set, NULL);
if (FD_ISSET(qrexec_daemon_unix_socket_fd, &read_fdset))
handle_new_client();
while (libvchan_data_ready(vchan))
handle_message_from_agent();
for (i = 0; i <= max_client_fd; i++)
if (clients[i].state != CLIENT_INVALID
&& FD_ISSET(i, &read_fdset))
handle_message_from_client(i);
}
}
int main(int argc, char **argv)
{
fd_set read_fdset, write_fdset;
int i;
int max;
sigset_t chld_set;
if (argc != 2) {
fprintf(stderr, "usage: %s domainid\n", argv[0]);
exit(1);
}
init(atoi(argv[1]));
sigemptyset(&chld_set);
sigaddset(&chld_set, SIGCHLD);
/*
The main event loop. Waits for one of the following events:
- message from client
- message from agent
- new client
- child exited
*/
for (;;) {
max = fill_fdsets_for_select(&read_fdset, &write_fdset);
if (buffer_space_vchan_ext() <=
sizeof(struct server_header))
FD_ZERO(&read_fdset); // vchan full - don't read from clients
sigprocmask(SIG_BLOCK, &chld_set, NULL);
if (child_exited)
reap_children();
wait_for_vchan_or_argfd(max, &read_fdset, &write_fdset);
sigprocmask(SIG_UNBLOCK, &chld_set, NULL);
if (FD_ISSET(qrexec_daemon_unix_socket_fd, &read_fdset))
handle_new_client();
while (read_ready_vchan_ext())
handle_message_from_agent();
for (i = 0; i <= max_client_fd; i++)
if (clients[i].state != CLIENT_INVALID
&& FD_ISSET(i, &read_fdset))
handle_message_from_client(i);
for (i = 0; i <= max_client_fd; i++)
if (clients[i].state != CLIENT_INVALID
&& FD_ISSET(i, &write_fdset))
write_buffered_data_to_client(i);
}
}
