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GUACAMOLE-622: Do not allow STDIN to be redirected if the terminal is not yet started.

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This commit is contained in:
Michael Jumper 2018-09-01 21:41:13 -07:00
parent 286cbf32a7
commit 1178b475da
1 changed files with 16 additions and 0 deletions
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16
src/terminal/terminal-stdin-stream.c
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@ -103,6 +103,22 @@ static int guac_terminal_input_stream_end_handler(guac_user* user,
static int __guac_terminal_send_stream(guac_terminal* term, guac_user* user, static int __guac_terminal_send_stream(guac_terminal* term, guac_user* user,
guac_stream* stream) { guac_stream* stream) {
/* Deny redirecting STDIN if terminal is not started */
if (!term->started) {
guac_user_log(user, GUAC_LOG_DEBUG, "Attempt to direct the contents "
"of an inbound stream to STDIN denied. The terminal is not "
"yet ready for input.");
guac_protocol_send_ack(user->socket, stream,
"Terminal not yet started.",
GUAC_PROTOCOL_STATUS_RESOURCE_CONFLICT);
guac_socket_flush(user->socket);
return 1;
}
/* If a stream is already being used for STDIN, deny creation of /* If a stream is already being used for STDIN, deny creation of
* further streams */ * further streams */
if (term->input_stream != NULL) { if (term->input_stream != NULL) {