166 lines
4.3 KiB
C
166 lines
4.3 KiB
C
|
|
/*
|
|
* Guacamole - Clientless Remote Desktop
|
|
* Copyright (C) 2010 Michael Jumper
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <pthread.h>
|
|
|
|
#include <errno.h>
|
|
#include <syslog.h>
|
|
|
|
#include <guacamole/client.h>
|
|
|
|
typedef struct client_thread_data {
|
|
|
|
int fd;
|
|
|
|
} client_thread_data;
|
|
|
|
|
|
void* start_client_thread(void* data) {
|
|
|
|
guac_client* client;
|
|
client_thread_data* thread_data = (client_thread_data*) data;
|
|
|
|
syslog(LOG_INFO, "Spawning client");
|
|
|
|
/* Load and start client */
|
|
client = guac_get_client(thread_data->fd);
|
|
|
|
if (client == NULL) {
|
|
syslog(LOG_ERR, "Client retrieval failed");
|
|
return NULL;
|
|
}
|
|
|
|
guac_start_client(client);
|
|
|
|
guac_free_client(client);
|
|
|
|
/* Close socket */
|
|
if (close(thread_data->fd) < 0) {
|
|
syslog(LOG_ERR, "Error closing connection: %s", strerror(errno));
|
|
free(data);
|
|
return NULL;
|
|
}
|
|
|
|
syslog(LOG_INFO, "Client finished");
|
|
free(data);
|
|
return NULL;
|
|
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
|
|
/* Server */
|
|
int socket_fd;
|
|
struct sockaddr_in server_addr;
|
|
|
|
/* Client */
|
|
struct sockaddr_in client_addr;
|
|
unsigned int client_addr_len;
|
|
int connected_socket_fd;
|
|
|
|
/* Arguments */
|
|
int listen_port = 4822; /* Default port */
|
|
int opt;
|
|
|
|
/* Parse arguments */
|
|
while ((opt = getopt(argc, argv, "l:")) != -1) {
|
|
if (opt == 'l') {
|
|
listen_port = atoi(optarg);
|
|
if (listen_port <= 0) {
|
|
fprintf(stderr, "Invalid port: %s\n", optarg);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
else {
|
|
fprintf(stderr, "USAGE: %s [-l LISTENPORT]\n", argv[0]);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
/* Get binding address */
|
|
memset(&server_addr, 0, sizeof(server_addr)); /* Zero struct */
|
|
server_addr.sin_family = AF_INET;
|
|
server_addr.sin_addr.s_addr = INADDR_ANY;
|
|
server_addr.sin_port = htons(listen_port);
|
|
|
|
/* Get socket */
|
|
socket_fd = socket(AF_INET, SOCK_STREAM, 0);
|
|
if (socket_fd < 0) {
|
|
fprintf(stderr, "Error opening socket: %s\n", strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* Bind socket to address */
|
|
if (bind(socket_fd, (struct sockaddr*) &server_addr,
|
|
sizeof(server_addr)) < 0) {
|
|
fprintf(stderr, "Error binding socket: %s\n", strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
syslog(LOG_INFO, "Started, listening on port %i", listen_port);
|
|
|
|
|
|
/* Daemon loop */
|
|
for (;;) {
|
|
|
|
pthread_t thread;
|
|
client_thread_data* data;
|
|
|
|
/* Listen for connections */
|
|
if (listen(socket_fd, 5) < 0) {
|
|
syslog(LOG_ERR, "Could not listen on socket: %s", strerror(errno));
|
|
return 3;
|
|
}
|
|
|
|
/* Accept connection */
|
|
client_addr_len = sizeof(client_addr);
|
|
connected_socket_fd = accept(socket_fd, (struct sockaddr*) &client_addr, &client_addr_len);
|
|
if (connected_socket_fd < 0) {
|
|
syslog(LOG_ERR, "Could not accept client connection: %s", strerror(errno));
|
|
return 3;
|
|
}
|
|
|
|
data = malloc(sizeof(client_thread_data));
|
|
data->fd = connected_socket_fd;
|
|
|
|
if (pthread_create(&thread, NULL, start_client_thread, (void*) data)) {
|
|
syslog(LOG_ERR, "Could not create client thread: %s", strerror(errno));
|
|
return 3;
|
|
}
|
|
|
|
}
|
|
|
|
/* Close socket */
|
|
if (close(socket_fd) < 0) {
|
|
syslog(LOG_ERR, "Could not close socket: %s", strerror(errno));
|
|
return 3;
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|