Moved guac -> libguac, moving towards pluggable protocols.

guacamole/libguac/client.c

@@ -0,0 +1,149 @@
+
+/*
+ *  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 <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "guacio.h"
+#include "protocol.h"
+#include "client.h"
+
+
+png_byte** guac_alloc_png_buffer(int w, int h, int bpp) {
+
+    png_byte** png_buffer;
+    png_byte* row;
+    int y;
+
+    /* Allocate rows for PNG */
+    png_buffer = (png_byte**) malloc(h * sizeof(png_byte*));
+    for (y=0; y<h; y++) {
+        row = (png_byte*) malloc(sizeof(png_byte) * bpp * w);
+        png_buffer[y] = row;
+    }
+
+    return png_buffer;
+}
+
+void guac_free_png_buffer(png_byte** png_buffer, int h) {
+
+    int y;
+
+    /* Free PNG data */
+    for (y = 0; y<h; y++)
+        free(png_buffer[y]);
+    free(png_buffer);
+
+}
+
+guac_client* guac_get_client(int client_fd, void (*client_init)(guac_client* client, const char* hostname, int port), const char* hostname, int port) {
+
+    guac_client* client = malloc(sizeof(guac_client));
+
+    client->io = guac_open(client_fd);
+
+    client_init(client, hostname, port);
+    guac_flush(client->io);
+
+    return client;
+
+}
+
+void guac_free_client(guac_client* client) {
+    if (client->free_handler)
+        client->free_handler(client);
+
+    guac_close(client->io);
+
+    free(client);
+}
+
+
+void guac_start_client(guac_client* client) {
+
+    guac_instruction instruction;
+    GUACIO* io = client->io;
+    int wait_result;
+
+    /* VNC Client Loop */
+    for (;;) {
+
+        /* Handle server messages */
+        if (client->handle_messages) {
+            client->handle_messages(client);
+            guac_flush(client->io);
+        }
+
+        wait_result = guac_instructions_waiting(io);
+        if (wait_result > 0) {
+
+            int retval;
+            retval = guac_read_instruction(io, &instruction); /* 0 if no instructions finished yet, <0 if error or EOF */
+
+            if (retval > 0) {
+           
+                do {
+
+                    if (strcmp(instruction.opcode, "mouse") == 0) {
+                        if (client->mouse_handler)
+                            client->mouse_handler(
+                                client,
+                                atoi(instruction.argv[0]), /* x */
+                                atoi(instruction.argv[1]), /* y */
+                                atoi(instruction.argv[2])  /* mask */
+                            );
+                    }
+
+                    else if (strcmp(instruction.opcode, "key") == 0) {
+                        if (client->key_handler)
+                            client->key_handler(
+                                client,
+                                atoi(instruction.argv[0]), /* keysym */
+                                atoi(instruction.argv[1])  /* pressed */
+                            );
+                    }
+
+                    else if (strcmp(instruction.opcode, "clipboard") == 0) {
+                        if (client->clipboard_handler)
+                            client->clipboard_handler(
+                                client,
+                                guac_unescape_string_inplace(instruction.argv[0]) /* data */
+                            );
+                    }
+
+                } while ((retval = guac_read_instruction(io, &instruction)) > 0);
+
+                if (retval < 0)
+                    return;
+            }
+
+            if (retval < 0)
+                return; /* EOF or error */
+
+            /* Otherwise, retval == 0 implies unfinished instruction */
+
+        }
+        else if (wait_result < 0)
+            return;
+
+    }
+
+}
+