Allow compile even if fork() and pthreads not present.
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guacd/.gitignore
vendored
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guacd/.gitignore
vendored
@ -1,6 +1,7 @@
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# Compiled proxy
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guacd
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guacd.exe
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# Object code
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*.o
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@ -9,7 +9,8 @@ AC_PROG_CC
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# Checks for libraries.
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AC_CHECK_LIB([guac], [guac_get_client],, AC_MSG_ERROR("libguac must be installed first"))
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AC_CHECK_LIB([pthread], [pthread_create],, AC_MSG_ERROR("POSIX threads (libpthread) must be installed"))
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AC_CHECK_LIB([pthread], [pthread_create])
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AC_CHECK_LIB([wsock32], [main])
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# Checks for header files.
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AC_CHECK_HEADERS([netinet/in.h stdlib.h string.h sys/socket.h syslog.h unistd.h guacamole/client.h])
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@ -22,14 +22,22 @@
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#ifdef __MINGW32__
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#include <winsock2.h>
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#else
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#include <sys/socket.h>
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#include <netinet/in.h>
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#endif
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#ifdef __HAVE_PTHREAD_H__
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#include <pthread.h>
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#endif
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#include <errno.h>
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#include <syslog.h>
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#include <guacamole/client.h>
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#include <guacamole/guaclog.h>
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typedef struct client_thread_data {
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@ -43,13 +51,13 @@ void* start_client_thread(void* data) {
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guac_client* client;
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client_thread_data* thread_data = (client_thread_data*) data;
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syslog(LOG_INFO, "Spawning client");
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GUAC_LOG_INFO("Spawning client");
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/* Load and start client */
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client = guac_get_client(thread_data->fd);
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if (client == NULL) {
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syslog(LOG_ERR, "Client retrieval failed");
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GUAC_LOG_ERROR("Client retrieval failed");
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return NULL;
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}
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@ -59,12 +67,12 @@ void* start_client_thread(void* data) {
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/* Close socket */
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if (close(thread_data->fd) < 0) {
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syslog(LOG_ERR, "Error closing connection: %s", strerror(errno));
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GUAC_LOG_ERROR("Error closing connection: %s", strerror(errno));
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free(data);
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return NULL;
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}
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syslog(LOG_INFO, "Client finished");
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GUAC_LOG_INFO("Client finished");
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free(data);
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return NULL;
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@ -129,6 +137,7 @@ int main(int argc, char* argv[]) {
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}
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/* Fork into background */
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#ifdef fork
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daemon_pid = fork();
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/* If error, fail */
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@ -141,19 +150,25 @@ int main(int argc, char* argv[]) {
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else if (daemon_pid != 0) {
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exit(EXIT_SUCCESS);
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}
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#else
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GUAC_LOG_INFO("fork() not defined at compile time.");
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GUAC_LOG_INFO("guacd running in foreground only.");
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#endif
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/* Otherwise, this is the daemon */
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syslog(LOG_INFO, "Started, listening on port %i", listen_port);
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GUAC_LOG_INFO("Started, listening on port %i", listen_port);
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/* Daemon loop */
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for (;;) {
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#ifdef pthread_t
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pthread_t thread;
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#endif
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client_thread_data* data;
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/* Listen for connections */
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if (listen(socket_fd, 5) < 0) {
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syslog(LOG_ERR, "Could not listen on socket: %s", strerror(errno));
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GUAC_LOG_ERROR("Could not listen on socket: %s", strerror(errno));
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return 3;
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}
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@ -161,23 +176,29 @@ int main(int argc, char* argv[]) {
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client_addr_len = sizeof(client_addr);
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connected_socket_fd = accept(socket_fd, (struct sockaddr*) &client_addr, &client_addr_len);
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if (connected_socket_fd < 0) {
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syslog(LOG_ERR, "Could not accept client connection: %s", strerror(errno));
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GUAC_LOG_ERROR("Could not accept client connection: %s", strerror(errno));
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return 3;
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}
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data = malloc(sizeof(client_thread_data));
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data->fd = connected_socket_fd;
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#ifdef pthread_t
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if (pthread_create(&thread, NULL, start_client_thread, (void*) data)) {
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syslog(LOG_ERR, "Could not create client thread: %s", strerror(errno));
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GUAC_LOG_ERROR("Could not create client thread: %s", strerror(errno));
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return 3;
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}
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#else
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GUAC_LOG_INFO("POSIX threads support not present at compile time.");
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GUAC_LOG_INFO("guacd handling one connection at a time.");
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start_client_thread(data);
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#endif
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}
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/* Close socket */
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if (close(socket_fd) < 0) {
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syslog(LOG_ERR, "Could not close socket: %s", strerror(errno));
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GUAC_LOG_ERROR("Could not close socket: %s", strerror(errno));
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return 3;
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}
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