aljaz/ttyd
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Add support for the --readonly option

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This commit is contained in:
Shuanglei Tao
2016-10-10 22:08:17 +08:00
parent 3c9884a87b
commit 67d6564cfb
4 changed files with 12 additions and 1 deletions
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1
README.md
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@@ -65,6 +65,7 @@ OPTIONS:
--gid, -g Group id to run with
--signal, -s Signal to send to the command when exit it (default: SIGHUP)
--reconnect, -r Time to reconnect for the client in seconds (default: 10)
--readonly, -R Do not allow clients to write to the TTY
--once, -o Accept only one client and exit on disconnection
--ssl, -S Enable ssl
--ssl-cert, -C Ssl certificate file path

2
src/protocol.c
View File

@@ -258,6 +258,8 @@ callback_tty(struct lws *wsi, enum lws_callback_reasons reason,
switch (command) {
case INPUT:
if (server->readonly)
return 0;
if (write(client->pty, client->buffer + 1, client->len - 1) < client->len - 1) {
lwsl_err("write INPUT to pty\n");
return -1;

9
src/server.c
View File

@@ -33,13 +33,14 @@ static const struct option options[] = {
{"ssl-cert", required_argument, NULL, 'C'},
{"ssl-key", required_argument, NULL, 'K'},
{"ssl-ca", required_argument, NULL, 'A'},
{"readonly", no_argument, NULL, 'R'},
{"once", no_argument, NULL, 'o'},
{"debug", required_argument, NULL, 'd'},
{"version", no_argument, NULL, 'v'},
{"help", no_argument, NULL, 'h'},
{NULL, 0, 0, 0}
};
static const char *opt_string = "p:i:c:u:g:s:r:aSC:K:A:od:vh";
static const char *opt_string = "p:i:c:u:g:s:r:aSC:K:A:Rod:vh";
void print_help() {
fprintf(stderr, "ttyd is a tool for sharing terminal over the web\n\n"
@@ -55,6 +56,7 @@ void print_help() {
" --gid, -g Group id to run with\n"
" --signal, -s Signal to send to the command when exit it (default: SIGHUP)\n"
" --reconnect, -r Time to reconnect for the client in seconds (default: 10)\n"
" --readonly, -R Do not allow clients to write to the TTY\n"
" --once, -o Accept only one client and exit on disconnection\n"
" --ssl, -S Enable ssl\n"
" --ssl-cert, -C Ssl certificate file path\n"
@@ -202,6 +204,9 @@ main(int argc, char **argv) {
case 'd':
debug_level = atoi(optarg);
break;
case 'R':
server->readonly = true;
break;
case 'o':
server->once = true;
break;
@@ -322,6 +327,8 @@ main(int argc, char **argv) {
lwsl_notice(" start command: %s\n", server->command);
lwsl_notice(" reconnect timeout: %ds\n", server->reconnect);
lwsl_notice(" close signal: %s (%d)\n", server->sig_name, server->sig_code);
if (server->readonly)
lwsl_notice(" readonly: true\n");
if (server->once)
lwsl_notice(" once: true\n");

1
src/server.h
View File

@@ -71,6 +71,7 @@ struct tty_server {
char **argv; // command with arguments
int sig_code; // close signal
char *sig_name; // human readable signal string
bool readonly; // whether not allow clients to write to the TTY
bool once; // whether accept only one client and exit on disconnection
pthread_mutex_t lock;
};