void DecoderStack::decode_data(
const int64_t sample_count, const unsigned int unit_size,
srd_session *const session)
{
uint8_t chunk[DecodeChunkLength];
const unsigned int chunk_sample_count =
DecodeChunkLength / segment_->unit_size();
for (int64_t i = 0; !interrupt_ && i < sample_count;
i += chunk_sample_count) {
lock_guard<mutex> decode_lock(global_decode_mutex_);
const int64_t chunk_end = min(
i + chunk_sample_count, sample_count);
segment_->get_samples(chunk, i, chunk_end);
if (srd_session_send(session, i, chunk_end, chunk,
(chunk_end - i) * unit_size, unit_size) != SRD_OK) {
error_message_ = tr("Decoder reported an error");
break;
}
{
lock_guard<mutex> lock(output_mutex_);
samples_decoded_ = chunk_end;
}
if (i % DecodeNotifyPeriod == 0)
new_decode_data();
}
new_decode_data();
}
int64_t DecoderStack::samples_decoded() const
{
lock_guard<mutex> decode_lock(output_mutex_);
return samples_decoded_;
}
static int get_command(struct command_s *command)
{
char *next;
again:
printf("command: ");
if (!fgets(cbuf, COMMAND_MAX_LEN, stdin))
return -1;
next = strtok(cbuf, " \n");
if (!next)
goto again;
if (decode_type(command, next)) {
fprintf(stderr, "Invalid command type \"%s\"\n", next);
goto again;
}
if (command->c_type == HELP)
return 0;
next = strtok(NULL, " ");
if (!next) {
fprintf(stderr, "invalid input!\n");
goto again;
}
switch (command->c_type) {
case REGISTER:
case UNREGISTER:
if (decode_domain(command, next)) {
fprintf(stderr, "Invalid domain \"%s\"\n", next);
goto again;
}
break;
case LOCK:
case TRYLOCK:
if (decode_level(command, next)) {
fprintf(stderr, "Invalid lock level \"%s\"\n", next);
goto again;
}
next = strtok(NULL, " ");
if (!next) {
fprintf(stderr, "invalid input!\n");
goto again;
}
/* fall through */
case SETLVB:
case GETLVB:
case UNLOCK:
if (decode_lock(command, next)) {
fprintf(stderr, "Invalid lock \"%s\"\n", next);
goto again;
}
if (command->c_type == SETLVB) {
/* for setlvb we want to get a pointer to the
* start of the string to stuff */
next = strtok(NULL, "\n");
if (!next) {
fprintf(stderr, "invalid input!\n");
goto again;
}
kill_return(next);
command->c_lvb = next;
}
break;
default:
fprintf(stderr, "whoa, can't parse this\n");
}
return 0;
}
int64_t DecoderStack::samples_decoded() const
{
lock_guard<mutex> decode_lock(_output_mutex);
return _samples_decoded;
}
static void
hub_handle_command(char *buf, uint32_t len)
{
char *hub_my_nick; /* XXX */
hub_my_nick = main_to_hub_string(my_nick);
if (len >= 6 && strncmp(buf, "$Lock ", 6) == 0) {
char *key;
if (!check_state(buf, (DCUserState) DC_HUB_LOCK))
goto hub_handle_command_cleanup;
key = (char*) memmem(buf+6, len-6, " Pk=", 4);
if (key == NULL) {
warn(_("Invalid $Lock message: Missing Pk value\n"));
key = buf+len;
}
key = decode_lock(buf+6, key-buf-6, DC_CLIENT_BASE_KEY);
if (strleftcmp("EXTENDEDPROTOCOL", buf+6) == 0) {
if (!hub_putf("$Supports TTHSearch NoGetINFO NoHello|")) {
free(key);
goto hub_handle_command_cleanup;
}
}
if (!hub_putf("$Key %s|", key)) {
free(key);
goto hub_handle_command_cleanup;
}
free(key);
if (!hub_putf("$ValidateNick %s|", hub_my_nick))
goto hub_handle_command_cleanup;
hub_state = DC_HUB_HELLO;
}
else if (len >= 10 && strncmp(buf, "$Supports ", 10) == 0) {
char *p0, *p1;
hub_extensions = 0;
for (p0 = buf+10; (p1 = strchr(p0, ' ')) != NULL; p0 = p1+1) {
*p1 = '\0';
parse_hub_extension(p0);
}
if (*p0 != '\0')
parse_hub_extension(p0);
}
else if (strcmp(buf, "$GetPass") == 0) {
if (my_password == NULL) {
screen_putf(_("Hub requires password.\n"));
hub_disconnect();
goto hub_handle_command_cleanup;
}
screen_putf(_("Sending password to hub.\n"));
if (!hub_putf("$MyPass %s|", my_password))
goto hub_handle_command_cleanup;
}
else if (strcmp(buf, "$BadPass") == 0) {
warn(_("Password not accepted.\n"));
hub_disconnect();
}
else if (strcmp(buf, "$LogedIn") == 0) {
screen_putf(_("You have received operator status.\n"));
}
else if (len >= 9 && strncmp(buf, "$HubName ", 9) == 0) {
free(hub_name);
hub_name = hub_to_main_string(buf + 9);
screen_putf(_("Hub name is %s.\n"), quotearg(hub_name));
}
else if (strcmp(buf, "$GetNetInfo") == 0) {
hub_putf("$NetInfo %d$1$%c|", my_ul_slots, is_active ? 'A' : 'P');
}
else if (strcmp(buf, "$ValidateDenide") == 0) {
if (!check_state(buf, (DCUserState) DC_HUB_HELLO))
goto hub_handle_command_cleanup;
/* DC++ disconnects immediately if this is received.
* But shouldn't we give the client a chance to change the nick?
* Also what happens if we receive this when correctly logged in?
*/
warn(_("Hub did not accept nick. Nick may be in use.\n"));
hub_disconnect();
}
else if (len >= 7 && strncmp(buf, "$Hello ", 7) == 0) {
DCUserInfo *ui;
char *conv_nick;
conv_nick = hub_to_main_string(buf + 7);
if (hub_state == DC_HUB_HELLO) {
if (strcmp(buf+7, hub_my_nick) == 0) {
screen_putf(_("Nick accepted. You are now logged in.\n"));
} else {
/* This probably won't happen, but better safe... */
free(my_nick);
my_nick = xstrdup(conv_nick);
free(hub_my_nick);
hub_my_nick = xstrdup(buf + 7);
screen_putf(_("Nick accepted but modified to %s. You are now logged in.\n"), quotearg(my_nick));
}
ui = user_info_new(conv_nick);
ui->info_quered = true; /* Hub is sending this automaticly */
hmap_put(hub_users, ui->nick, ui);
free (conv_nick);
if (!hub_putf("$Version 1,0091|"))
goto hub_handle_command_cleanup;
if (!hub_putf("$GetNickList|"))
goto hub_handle_command_cleanup;
if (!send_my_info())
goto hub_handle_command_cleanup;
hub_state = DC_HUB_LOGGED_IN;
} else {
flag_putf(DC_DF_JOIN_PART, _("User %s logged in.\n"), quotearg(conv_nick));
ui = user_info_new(conv_nick);
hmap_put(hub_users, ui->nick, ui);
free (conv_nick);
if ((hub_extensions & HUB_EXT_NOGETINFO) == 0) {
if (!hub_putf("$GetINFO %s %s|", buf+7, hub_my_nick))
goto hub_handle_command_cleanup;
ui->info_quered = true;
}
}
}
else if (len >= 8 && strncmp(buf, "$MyINFO ", 8) == 0) {
DCUserInfo *ui;
char *token;
uint32_t len;
char* conv_buf;
char *work_buf;
buf += 8;
work_buf = conv_buf = hub_to_main_string(buf);
token = strsep(&work_buf, " ");
if (strcmp(token, "$ALL") != 0) {
warn(_("Invalid $MyINFO message: Missing $ALL parameter, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
token = strsep(&work_buf, " ");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing nick parameter, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
ui = (DCUserInfo*) hmap_get(hub_users, token);
if (ui == NULL) {
/*
* if the full buf has not been converted from hub to local charset,
* we should try to convert nick only
*/
/*
char *conv_nick = hub_to_main_string(token);
if ((ui = hmap_get(hub_users, conv_nick)) == NULL) {
*/
ui = user_info_new(token);
ui->info_quered = true;
hmap_put(hub_users, ui->nick, ui);
/*
}
free(conv_nick);
*/
}
token = strsep(&work_buf, "$");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing description parameter, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
free(ui->description);
ui->description = xstrdup(token);
token = strsep(&work_buf, "$");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing description separator, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
token = strsep(&work_buf, "$");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing connection speed, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
len = strlen(token);
free(ui->speed);
if (len == 0) {
ui->speed = xstrdup("");
ui->level = 0; /* XXX: or 1? acceptable level? */
} else {
ui->speed = xstrndup(token, len-1);
ui->level = token[len-1];
}
token = strsep(&work_buf, "$");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing e-mail address, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
free(ui->email);
ui->email = xstrdup(token);
token = strsep(&work_buf, "$");
if (token == NULL) {
warn(_("Invalid $MyINFO message: Missing share size, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
if (!parse_uint64(token, &ui->share_size)) {
warn(_("Invalid $MyINFO message: Invalid share size, ignoring\n"));
free(conv_buf);
goto hub_handle_command_cleanup;
}
if (ui->active_state == DC_ACTIVE_RECEIVED_PASSIVE
|| ui->active_state == DC_ACTIVE_KNOWN_ACTIVE)
ui->active_state = DC_ACTIVE_UNKNOWN;
/* XXX: Now that user's active_state may have changed, try queue again? */
free(conv_buf);
}
else if (strcmp(buf, "$HubIsFull") == 0) {
warn(_("Hub is full.\n"));
/* DC++ does not disconnect immediately. So I guess we won't either. */
/* Maybe we should be expecting an "hub follow" message? */
/* hub_disconnect(); */
}
else if (len >= 3 && (buf[0] == '<' || strncmp(buf, " * ", 3) == 0)) {
char *head;
char *tail;
char *msg;
bool first = true;
/*
int scrwidth;
size_t firstlen;
size_t otherlen;
screen_get_size(NULL, &scrwidth);
firstlen = scrwidth - strlen(_("Public:"));
otherlen = scrwidth - strlen(_(" | "));
*/
msg = prepare_chat_string_for_display(buf);
for (head = msg; (tail = strchr(head, '\n')) != NULL; head = tail+1) {
/*PtrV *wrapped;*/
if (tail[-1] == '\r') /* end > buf here, buf[0] == '<' or ' ' */
tail[-1] = '\0';
else
tail[0] = '\0';
/*wrapped = wordwrap(quotearg(buf), first ? firstlen : otherlen, otherlen);
for (c = 0; c < wrapped->cur; c++)
flag_putf(DC_DF_PUBLIC_CHAT, first ? _("Public: %s\n") : _(" | %s\n"), );
ptrv_foreach(wrapped, free);
ptrv_free(wrapped);*/
flag_putf(DC_DF_PUBLIC_CHAT, first ? _("Public: %s\n") : _(" | %s\n"), quotearg(head));
first = false;
}
flag_putf(DC_DF_PUBLIC_CHAT, first ? _("Public: %s\n") : _(" | %s\n"), quotearg(head));
free(msg);
}
else if (len >= 5 && strncmp(buf, "$To: ", 5) == 0) {
char *msg;
char *tail;
char *frm;
char *head;
bool first = true;
msg = strchr(buf+5, '$');
if (msg == NULL) {
warn(_("Invalid $To message: Missing text separator, ignoring\n"));
goto hub_handle_command_cleanup;
}
*msg = '\0';
msg++;
/* FIXME: WTF is this? Remove multiple "From: "? Why!? */
frm = buf+5;
while ((tail = strstr(msg, "From: ")) != NULL && tail < msg)
frm = tail+6;
msg = prepare_chat_string_for_display(msg);
frm = prepare_chat_string_for_display(frm);
for (head = msg; (tail = strchr(head, '\n')) != NULL; head = tail+1) {
if (tail[-1] == '\r') /* tail > buf here because head[0] == '<' or ' ' */
tail[-1] = '\0';
else
tail[0] = '\0';
if (first) {
screen_putf(_("Private: [%s] %s\n"), quotearg_n(0, frm), quotearg_n(1, head));
first = false;
} else {
screen_putf(_(" | %s\n"), quotearg(head));
}
}
if (first) {
screen_putf(_("Private: [%s] %s\n"), quotearg_n(0, frm), quotearg_n(1, head));
} else {
screen_putf(_(" | %s\n"), quotearg(head));
}
free(msg);
free(frm);
}
else if (len >= 13 && strncmp(buf, "$ConnectToMe ", 13) == 0) {
struct sockaddr_in addr;
buf += 13;
if (strsep(&buf, " ") == NULL) {
warn(_("Invalid $ConnectToMe message: Missing or invalid nick\n"));
goto hub_handle_command_cleanup;
}
if (!parse_ip_and_port(buf, &addr, 0)) {
warn(_("Invalid $ConnectToMe message: Invalid address specification.\n"));
goto hub_handle_command_cleanup;
}
flag_putf(DC_DF_CONNECTIONS, _("Connecting to user on %s\n"), sockaddr_in_str(&addr));
user_connection_new(&addr, -1);
}
else if (len >= 16 && strncmp(buf, "$RevConnectToMe ", 16) == 0) {
char *nick;
char *local_nick;
DCUserInfo *ui;
nick = strtok(buf+16, " ");
if (nick == NULL) {
warn(_("Invalid $RevConnectToMe message: Missing nick parameter\n"));
goto hub_handle_command_cleanup;
}
if (strcmp(nick, hub_my_nick) == 0) {
warn(_("Invalid $RevConnectToMe message: Remote nick is our nick\n"));
goto hub_handle_command_cleanup;
}
local_nick = hub_to_main_string(nick);
ui = (DCUserInfo*) hmap_get(hub_users, local_nick);
if (ui == NULL) {
warn(_("Invalid $RevConnectToMe message: Unknown user %s, ignoring\n"), quotearg(local_nick));
free(local_nick);
goto hub_handle_command_cleanup;
}
free(local_nick);
if (ui->conn_count >= DC_USER_MAX_CONN) {
warn(_("No more connections to user %s allowed.\n"), quotearg(ui->nick));
goto hub_handle_command_cleanup;
}
if (!is_active) {
if (ui->active_state == DC_ACTIVE_SENT_PASSIVE) {
warn(_("User %s is also passive. Cannot establish connection.\n"), quotearg(ui->nick));
/* We could set this to DC_ACTIVE_UNKNOWN too. This would mean
* we would keep sending RevConnectToMe next time the download
* queue is modified or some timer expired and told us to retry
* download. The remote would then send back RevConnectToMe
* and this would happen again. This way we would try again -
* maybe remote has become active since last time we checked?
* But no - DC++ only replies with RevConnectToMe to our first
* RevConnectToMe. After that it ignores them all.
*/
ui->active_state = DC_ACTIVE_RECEIVED_PASSIVE;
if (hmap_remove(pending_userinfo, ui->nick) != NULL)
ui->refcount--;
goto hub_handle_command_cleanup;
}
if (ui->active_state != DC_ACTIVE_RECEIVED_PASSIVE) {
/* Inform remote that we are also passive. */
if (!hub_putf("$RevConnectToMe %s %s|", hub_my_nick, nick))
goto hub_handle_command_cleanup;
}
}
ui->active_state = DC_ACTIVE_RECEIVED_PASSIVE;
if (!hub_connect_user(ui))
goto hub_handle_command_cleanup;
}
else if ( (len >= 10 && strncmp(buf, "$NickList ", 10) == 0)
|| (len >= 8 && strncmp(buf, "$OpList ", 8) == 0) ) {
char *nick;
char *end;
int oplist;
char *conv_nick;
if ( strncmp(buf, "$NickList ", 10) == 0) {
nick = buf + 10;
oplist = 0;
} else {
nick = buf + 8;
oplist = 1;
}
for (; (end = strstr(nick, "$$")) != NULL; nick = end+2) {
DCUserInfo *ui;
*end = '\0';
conv_nick = hub_to_main_string(nick);
ui = (DCUserInfo*) hmap_get(hub_users, conv_nick);
if (ui == NULL) {
ui = user_info_new(conv_nick);
hmap_put(hub_users, ui->nick, ui);
}
free(conv_nick);
if (!ui->info_quered && (hub_extensions & HUB_EXT_NOGETINFO) == 0) {
if (!hub_putf("$GetINFO %s %s|", nick, hub_my_nick)) {
goto hub_handle_command_cleanup;
}
ui->info_quered = true;
}
if (oplist)
ui->is_operator = true;
}
}
else if (len >= 6 && strncmp(buf, "$Quit ", 6) == 0) {
DCUserInfo *ui;
char *conv_nick = hub_to_main_string(buf+6);
// I don't want these messages.
//flag_putf(DC_DF_JOIN_PART, "User %s quits.\n", quotearg(conv_nick));
ui = (DCUserInfo*) hmap_remove(hub_users, conv_nick);
if (ui == NULL) {
/* Some hubs print quit messages for users that never joined,
* so print this as debug only.
*/
flag_putf(DC_DF_DEBUG, _("Invalid $Quit message: Unknown user %s.\n"), quotearg(conv_nick));
} else
user_info_free(ui);
free(conv_nick);
}
else if (len >= 8 && strncmp(buf, "$Search ", 8) == 0) {
char *source;
int parse_result = 0;
DCSearchSelection sel;
sel.patterns = NULL;
buf += 8;
source = strsep(&buf, " ");
if (source == NULL) {
warn(_("Invalid $Search message: Missing source specification.\n"));
goto hub_handle_command_cleanup;
}
/* charset handling is in parse_search_selection */
parse_result = parse_search_selection(buf, &sel);
if (parse_result != 1) {
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
if (parse_result == 0)
warn(_("Invalid $Search message: %s: Invalid search specification.\n"), buf);
goto hub_handle_command_cleanup;
}
if (strncmp(source, "Hub:", 4) == 0) {
DCUserInfo *ui;
char *conv_nick = hub_to_main_string(source+4);
ui = (DCUserInfo*) hmap_get(hub_users, conv_nick);
if (ui == NULL) {
warn(_("Invalid $Search message: Unknown user %s.\n"), quotearg(conv_nick));
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
free(conv_nick);
goto hub_handle_command_cleanup;
}
free(conv_nick);
if (strcmp(ui->nick, my_nick) == 0) {
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
goto hub_handle_command_cleanup;
}
perform_inbound_search(&sel, ui, NULL);
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
} else {
struct sockaddr_in addr;
if (!parse_ip_and_port(source, &addr, DC_CLIENT_UDP_PORT)) {
warn(_("Invalid $Search message: Invalid address specification.\n"));
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
goto hub_handle_command_cleanup;
}
if (local_addr.sin_addr.s_addr == addr.sin_addr.s_addr && listen_port == ntohs(addr.sin_port)) {
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
goto hub_handle_command_cleanup;
}
perform_inbound_search(&sel, NULL, &addr);
if (sel.patterns != NULL) {
int i = 0;
for (i = 0; i < sel.patterncount; i++) {
search_string_free(sel.patterns+i);
}
free(sel.patterns);
}
}
} else if (len >= 4 && strncmp(buf, "$SR ", 4) == 0) {
handle_search_result(buf, len);
} else if (len == 0) {
/* Ignore empty commands. */
}
hub_handle_command_cleanup:
free(hub_my_nick);
}