int main(int argc, char *argv[])
{
optiondata opt;
motparm mp;
port_list * plist = &g_ports;
int rv;
if ( (rv = get_options(&opt, &mp, plist, argc, argv)) != 0 )
return rv;
/* register interrupt trap */
signal( SIGHUP, clean_n_exit );
signal( SIGINT, clean_n_exit );
signal( SIGQUIT, clean_n_exit );
signal( SIGKILL, clean_n_exit );
signal( SIGTERM, clean_n_exit );
if ( (rv = open_incoming_socket(&opt, plist)) < 0 )
return rv;
while (1) /* run until interrupt or error (consider restart?) */
{
mp.nread = 0; /* reset our counter */
/* wait for AFNI to talk to us */
if ( (rv = wait_for_socket(&opt, plist, &mp)) < 0 ) {
clean_n_exit(0);
return rv;
}
if ( ! opt.no_serial )
if ( (rv = open_serial(&opt, plist)) != 0 )
return rv;
/* read data while it is there */
while ( (rv = read_socket(&opt, plist, &mp)) == 0)
if ( ! opt.no_serial )
send_serial(&opt, plist, &mp);
close_data_ports(plist);
}
return 0; /* should not be reached, of course */
}
void update_interfaces()
{
struct int_sock *new_list=NULL;
struct int_sock *i=NULL,*j,*prev;
struct int_sock *new_int=NULL;
int i_fd,o_fd;
/* if all interfaces are '+'-interfaces, we bridge broadcast */
do_broadcast_bridging=1;
update_interface_trigger=0;
syslog(LOG_DEBUG,"rechecking interfaces");
if (read_sys(&new_list))
return;
for (i=select_set.i_s_list; i; i=i->next) {
if (!interface_in_list(i,new_list)) {
/* remove interface i */
j=select_set.i_s_list;
prev=NULL;
while (j) {
if (!strncmp(j->dev_name,i->dev_name,
DEV_NAME_LEN)) {
if (!prev) {
select_set.i_s_list=j->next;
} else {
prev->next=j->next;
}
prev=j;
j=j->next;
free(j);
} else {
j=j->next;
}
}
/* and close the socket */
close(i->i_fd);
close(i->o_fd);
syslog(LOG_INFO,"removed interface %s",i->dev_name);
}
}
for (i=new_list; i; i=i->next) {
if (!interface_in_list(i,select_set.i_s_list)) {
/* add interface i */
new_int=malloc(sizeof(struct int_sock));
if (!new_int) {
syslog(LOG_ERR,"can't add interface %s -- " \
"no memory",i->dev_name);
continue;
}
i_fd=open_incoming_socket(i->dev_name);
if (i_fd==-1) {
free(new_int);
continue;
}
o_fd=open_outgoing_socket(i->dev_name);
if (o_fd==-1) {
close(i_fd);
free(new_int);
continue;
}
strncpy(new_int->dev_name,i->dev_name,DEV_NAME_LEN);
new_int->i_fd=i_fd;
new_int->o_fd=o_fd;
new_int->features=i->features;
new_int->next=select_set.i_s_list;
select_set.i_s_list=new_int;
syslog(LOG_INFO,"added interface %s",i->dev_name);
}
}
/* kill temporary new_list */
while (new_list) {
i=new_list->next;
free(new_list);
new_list=i;
}
/* prepare the fd_set for select */
FD_ZERO(&select_set.fds);
for (i=select_set.i_s_list; i; i=i->next) {
FD_SET(i->i_fd,&select_set.fds);
select_set.highest_fd=(i->i_fd>select_set.highest_fd)?
i->i_fd:select_set.highest_fd;
}
}