Threads

guacamole/libguac/client.c

@@ -190,6 +190,14 @@ guac_client* guac_get_client(int client_fd, guac_client_registry_node* registry,
     GUACIO* io = guac_open(client_fd);
     guac_instruction instruction;
 
+    /* Make copies of arguments */
+    char** safe_argv = malloc(argc * sizeof(char*));
+    char** scratch_argv = malloc(argc * sizeof(char*));
+
+    int i;
+    for (i=0; i<argc; i++)
+        scratch_argv[i] = safe_argv[i] = strdup(argv[i]);
+
     /* Wait for handshaking messages */
     for (;;) {
 
@@ -213,8 +221,7 @@ guac_client* guac_get_client(int client_fd, guac_client_registry_node* registry,
                     guac_flush(client->io);
                 }
 
-                /* FIXME: hostname and port should not be required. Should be made available in some sort of client-contained argc/argv, specified after the protocol on the commandline */
-                client_init(client, argc, argv);
+                client_init(client, argc, scratch_argv);
                 break;
             }
 
@@ -261,6 +268,13 @@ guac_client* guac_get_client(int client_fd, guac_client_registry_node* registry,
 
     }
 
+    /* Free memory used for arg copy */
+    for (i=0; i<argc; i++)
+        free(safe_argv[i]);
+    
+    free(safe_argv);
+    free(scratch_argv);
+
     return client;
 
 }

guacamole/proxy/Makefile

@@ -1,6 +1,6 @@
 
 CFLAGS=-O2 -pedantic -Wall -Werror -I../libguac/include
-LDFLAGS=-L../libguac -lpng -lguac -ldl
+LDFLAGS=-L../libguac -lpng -lguac -ldl -lpthread
 
 .PHONY: clean
 

guacamole/proxy/daemon.c

@@ -25,6 +25,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <dlfcn.h>
+#include <pthread.h>
 
 #include "client.h"
 
@@ -93,7 +94,6 @@ int main(int argc, char* argv[]) {
     struct sockaddr_in client_addr;
     unsigned int client_addr_len;
     int connected_socket_fd;
-    pid_t client_pid ;
 
     int listen_port;
 
@@ -163,6 +163,7 @@ int main(int argc, char* argv[]) {
     /* Daemon loop */
     for (;;) {
 
+        pthread_t thread;
         client_thread_data* data;
 
         /* Listen for connections */
@@ -179,16 +180,6 @@ int main(int argc, char* argv[]) {
             return 3;
         }
 
-        /* Fork client */
-        client_pid = fork();
-        if (client_pid < 0) {
-            perror("Could not fork child");
-            return 4;
-        }
-
-        /* In child ... */
-        else if (client_pid == 0) {
-
         data = malloc(sizeof(client_thread_data));
 
         data->fd = connected_socket_fd;
@@ -197,8 +188,9 @@ int main(int argc, char* argv[]) {
         data->argc = client_argc;
         data->argv = client_argv;
 
-            start_client_thread(data);
-
+        if (pthread_create(&thread, NULL, start_client_thread, (void*) data)) {
+            perror("Error creating client thread");
+            return 3;
         }
 
     }