void visit_inside(AirspaceVisitor &visitor) const {
for (auto it = ids_inside.begin(), end = ids_inside.end(); it != end; ++it)
if (!is_acked(**it))
visitor.Visit(**it);
}
int main (int argc, char ** argv)
{
log_to_output (get_option ('v', &argc, argv));
if (argc < 2) {
printf ("usage: %s contact-name [message]\n", argv [0]);
printf (" or: %s -k contact-name [hops [secret]] (hops defaults to 1)\n",
argv [0]);
return 1;
}
int sock = xchat_init (argv [0]);
if (sock < 0)
return 1;
int ack_expected = 0;
long long int seq = 0;
char * contact = argv [1]; /* contact we send to, peer we receive from */
char * kcontact = NULL;
char * my_secret = NULL;
char * peer_secret = NULL;
#define MAX_SECRET 15 /* including a terminating null character */
char my_secret_buf [MAX_SECRET];
char peer_secret_buf [200];
int kmax_hops = 0;
int wait_time = 5000; /* 5 seconds to wait for acks and such */
if (strcmp (contact, "-k") == 0) { /* send a key */
if ((argc != 3) && (argc != 4) && (argc != 5)) {
printf ("usage: %s -k contact-name [hops [secret]] (%d)\n",
argv [0], argc);
return 1;
}
kcontact = argv [2];
int hops = 1;
if (argc >= 4) {
char * end;
int n = strtol (argv [3], &end, 10);
if (end != argv [3])
hops = n;
}
random_string (my_secret_buf, MAX_SECRET);
if (hops <= 1)
my_secret_buf [6] = '\0'; /* for direct contacts, truncate to 6 chars */
printf ("%d hops, my secret string is '%s'", hops, my_secret_buf);
normalize_secret (my_secret_buf);
printf (" (or %s)\n", my_secret_buf);
my_secret = my_secret_buf;
if (argc >= 5) {
snprintf (peer_secret_buf, sizeof (peer_secret_buf), "%s", argv [4]);
printf ("peer secret string is '%s'", peer_secret_buf);
normalize_secret (peer_secret_buf);
printf (" (or %s)\n", peer_secret_buf);
peer_secret = peer_secret_buf;
}
kmax_hops = hops;
wait_time = 10 * 60 * 1000; /* wait up to 10 minutes for a key */
char * send_secret = my_secret;
if (! create_contact_send_key (sock, kcontact, send_secret,
peer_secret, hops))
return 1;
} else { /* send the data packet */
int i;
keyset * keys;
int nkeys = all_keys (contact, &keys);
if ((argc > 2) && (nkeys > 0)) {
int max_key = 0;
for (i = 0; i < nkeys; i++) {
allnet_rsa_prvkey key;
int ksize = get_my_privkey (keys [i], &key);
if (ksize > max_key)
max_key = ksize;
}
static char text [ALLNET_MTU];
int size = sizeof (text) - CHAT_DESCRIPTOR_SIZE -
ALLNET_SIZE (ALLNET_TRANSPORT_ACK_REQ) -
max_key; /* the maximum size of a signature */
char * p = text;
int printed = 0;
for (i = 2; i < argc; i++) {
int n = snprintf (p, size, "%s%s", argv [i], (i + 1 < argc) ? " " : "");
printed += n;
p += n;
size -= n;
}
/* printf ("sending %d chars: '%s'\n", printed, text); */
seq = send_data_message (sock, contact, text, printed);
ack_expected = 1;
} else if (nkeys == 0) {
printf ("error: no keys for contact '%s'\n", contact);
} else if (nkeys < 0) {
printf ("error: contact '%s' does not exist\n", contact);
}
}
struct timeval start, deadline;
gettimeofday (&start, NULL);
gettimeofday (&deadline, NULL);
add_time (&deadline, wait_time);
int max_wait = until_deadline (&deadline);
int ack_seen = 0;
while (max_wait > 0) {
char * packet;
int pipe, pri;
int found = receive_pipe_message_any (max_wait, &packet, &pipe, &pri);
if (found < 0) {
printf ("xchats pipe closed, exiting\n");
exit (1);
}
int verified, duplicate, broadcast;
char * desc;
char * message;
char * peer = NULL;
keyset kset = -1;
int mlen = handle_packet (sock, packet, found, &peer, &kset,
&message, &desc, &verified, NULL, &duplicate,
&broadcast, kcontact, my_secret, peer_secret,
kmax_hops, NULL, NULL, 0);
if (mlen > 0) {
char * ver_mess = "";
if (! verified)
ver_mess = " (not verified)";
char * dup_mess = "";
if (duplicate)
dup_mess = "duplicate ";
char * bc_mess = "";
if (broadcast) {
bc_mess = "broacast ";
dup_mess = "";
desc = "";
}
printf ("from '%s'%s got %s%s%s\n %s\n", peer, ver_mess, dup_mess,
bc_mess, desc, message);
} else if (mlen == -1) { /* successful key exchange */
printf ("success! got remote key for %s\n", kcontact);
gettimeofday (&deadline, NULL);
add_time (&deadline, 5000); /* wait 5 more seconds */
}
/* handle_packet may change what has been acked */
if ((ack_expected) && (! ack_seen) && (is_acked (contact, seq))) {
struct timeval finish;
gettimeofday (&finish, NULL); /* how long did the ack take? */
long long int delta = (finish.tv_sec - start.tv_sec ) * 1000000LL +
(finish.tv_usec - start.tv_usec);
printf ("got ack from %s in %lld.%06llds\n", contact,
delta / 1000000, delta % 1000000);
gettimeofday (&deadline, NULL); /* wait another second from now */
add_time (&deadline, 1000); /* for additional messages */
ack_seen = 1;
}
if (mlen > 0) {
free (peer);
free (message);
if (! broadcast)
free (desc);
}
max_wait = until_deadline (&deadline);
}
return 0;
}
void visit_warned(AirspaceVisitor &visitor) const {
for (auto it = ids_warning.begin(), end = ids_warning.end(); it != end; ++it)
if (!is_acked(**it))
visitor.Visit(**it);
}
