static int channel_rcv_data1(ssh_session session, int is_stderr) {
ssh_channel channel = session->channels;
ssh_string str = NULL;
str = buffer_get_ssh_string(session->in_buffer);
if (str == NULL) {
ssh_log(session, SSH_LOG_FUNCTIONS, "Invalid data packet !\n");
return -1;
}
ssh_log(session, SSH_LOG_RARE,
"Adding %zu bytes data in %d",
string_len(str), is_stderr);
if (channel_default_bufferize(channel, string_data(str), string_len(str),
is_stderr) < 0) {
string_free(str);
return -1;
}
string_free(str);
return 0;
}
/* is_stderr is set to 1 if the data are extended, ie stderr */
static void channel_rcv_data(SSH_SESSION *session,int is_stderr) {
CHANNEL *channel;
STRING *str;
size_t len;
enter_function();
channel = channel_from_msg(session);
if (channel == NULL) {
ssh_log(session, SSH_LOG_FUNCTIONS,
"%s", ssh_get_error(session));
leave_function();
return;
}
if (is_stderr) {
u32 ignore;
/* uint32 data type code. we can ignore it */
buffer_get_u32(session->in_buffer, &ignore);
}
str = buffer_get_ssh_string(session->in_buffer);
if (str == NULL) {
ssh_log(session, SSH_LOG_PACKET, "Invalid data packet!");
leave_function();
return;
}
len = string_len(str);
ssh_log(session, SSH_LOG_PROTOCOL,
"Channel receiving %zu bytes data in %d (local win=%d remote win=%d)",
len,
is_stderr,
channel->local_window,
channel->remote_window);
/* What shall we do in this case? Let's accept it anyway */
if (len > channel->local_window) {
ssh_log(session, SSH_LOG_RARE,
"Data packet too big for our window(%zu vs %d)",
len,
channel->local_window);
}
if (channel_default_bufferize(channel, str->string, len,
is_stderr) < 0) {
string_free(str);
leave_function();
return;
}
if (len <= channel->local_window) {
channel->local_window -= len;
} else {
channel->local_window = 0; /* buggy remote */
}
ssh_log(session, SSH_LOG_PROTOCOL,
"Channel windows are now (local win=%d remote win=%d)",
channel->local_window,
channel->remote_window);
string_free(str);
leave_function();
}
