mirror of
https://github.com/tsl0922/ttyd.git
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125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
#ifdef HAVE_LWS_CONFIG_H
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#include "lws_config.h"
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#endif
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#ifndef TTYD_VERSION
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#define TTYD_VERSION "unknown"
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#endif
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <signal.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <pthread.h>
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#include <sys/ioctl.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <sys/select.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <assert.h>
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#ifdef __OpenBSD__
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#define STAILQ_HEAD SIMPLEQ_HEAD
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#define STAILQ_ENTRY SIMPLEQ_ENTRY
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#define STAILQ_INIT SIMPLEQ_INIT
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#define STAILQ_INSERT_TAIL SIMPLEQ_INSERT_TAIL
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#define STAILQ_EMPTY SIMPLEQ_EMPTY
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#define STAILQ_FIRST SIMPLEQ_FIRST
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#define STAILQ_REMOVE_HEAD SIMPLEQ_REMOVE_HEAD
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#define STAILQ_FOREACH SIMPLEQ_FOREACH
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#endif
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#if defined(__OpenBSD__) || defined(__APPLE__)
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#include <util.h>
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#elif defined(__FreeBSD__)
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#include <libutil.h>
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#else
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#include <pty.h>
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#endif
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#include <libwebsockets.h>
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#include <json.h>
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#include "utils.h"
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// client message
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#define INPUT '0'
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#define PING '1'
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#define RESIZE_TERMINAL '2'
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#define JSON_DATA '{'
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// server message
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#define OUTPUT '0'
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#define PONG '1'
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#define SET_WINDOW_TITLE '2'
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#define SET_PREFERENCES '3'
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#define SET_RECONNECT '4'
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// websocket url path
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#define WS_PATH "/ws"
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extern volatile bool force_exit;
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extern struct lws_context *context;
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extern struct tty_server *server;
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struct pty_data {
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char *data;
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int len;
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STAILQ_ENTRY(pty_data) list;
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};
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struct tty_client {
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bool running;
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bool initialized;
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bool authenticated;
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char hostname[100];
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char address[50];
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struct lws *wsi;
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struct winsize size;
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char *buffer;
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size_t len;
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int pid;
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int pty;
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pthread_t thread;
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STAILQ_HEAD(pty, pty_data) queue;
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pthread_mutex_t lock;
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LIST_ENTRY(tty_client) list;
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};
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struct tty_server {
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LIST_HEAD(client, tty_client) clients; // client list
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int client_count; // client count
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char *prefs_json; // client preferences
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char *credential; // encoded basic auth credential
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int reconnect; // reconnect timeout
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char *index; // custom index.html
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char *command; // full command line
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char **argv; // command with arguments
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int sig_code; // close signal
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char *sig_name; // human readable signal string
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bool readonly; // whether not allow clients to write to the TTY
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bool check_origin; // whether allow websocket connection from different origin
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int max_clients; // maximum clients to support
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bool once; // whether accept only one client and exit on disconnection
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char *socket_path; // UNIX domain socket path
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pthread_mutex_t lock;
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};
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extern int
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callback_http(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len);
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extern int
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callback_tty(struct lws *wsi, enum lws_callback_reasons reason, void *user, void *in, size_t len);
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