Randomized test.

guacamole/proxy/guacio.c

@@ -26,6 +26,26 @@ void guac_close(GUACIO* io) {
     free(io);
 }
 
+ssize_t guac_write_int(GUACIO* io, unsigned int i) {
+
+    char buffer[128];
+    char* ptr = &(buffer[127]);
+
+    *ptr = 0;
+
+    do {
+
+        ptr--;
+        *ptr = '0' + (i % 10);
+
+        i /= 10;
+
+    } while (i > 0 && ptr >= buffer);
+
+    return guac_write_string(io, ptr);
+
+}
+
 ssize_t guac_write_string(GUACIO* io, const char* str) {
 
     int fd = io->fd;

guacamole/proxy/guacio.h

@@ -17,6 +17,7 @@ typedef struct GUACIO {
 } GUACIO;
 
 GUACIO* guac_open(int fd);
+ssize_t guac_write_int(GUACIO* io, unsigned int i);
 ssize_t guac_write_string(GUACIO* io, const char* str);
 ssize_t guac_write_base64(GUACIO* io, const void* buf, size_t count);
 ssize_t guac_flush_base64(GUACIO* io);

guacamole/proxy/proxy.c

@@ -28,6 +28,8 @@ void proxy(int client_fd) {
 
     int x, y;
 
+    int test_index;
+
     GUACIO* io = guac_open(client_fd);
 
     /*** INIT ***/
@@ -35,6 +37,10 @@ void proxy(int client_fd) {
     /* Allocate rows for PNG */
     png_rows = (png_byte**) malloc(100 /* height */ * sizeof(png_byte*));
 
+    guac_write_string(io, "name:hello;size:1024,768;");
+
+    for (test_index=0; test_index<200; test_index++) {
+
         /* For now, generate test white image */
         for (y=0; y<100 /* height */; y++) {
 
@@ -42,17 +48,21 @@ void proxy(int client_fd) {
             png_rows[y] = row;
 
             for (x=0; x<100 /* width */; x++) {
-            *row++ = 0xFF;
+                *row++ = random() % 0xFF;
-            *row++ = 0xFF;
+
-            *row++ = 0xFF;
+                if (test_index % 2 == 0)
+                    *row++ = random() % 0xFF;
+                else
+                    *row++ = 0x00;
+
+                if (test_index % 3 == 0)
+                    *row++ = random() % 0xFF;
+                else
+                    *row++ = 0x00;
+
             }
         }
 
-
-    guac_write_string(io, "name:hello;size:1024,768;");
-
-    for (y=0; y<200; y++) {
-
         /* Write image */
 
         /* Set up PNG writer */
@@ -91,7 +101,11 @@ void proxy(int client_fd) {
                 PNG_FILTER_TYPE_DEFAULT
         );
         
-        guac_write_string(io, "png:0,0,");
+        guac_write_string(io, "png:");
+        guac_write_int(io, random()%1024);
+        guac_write_string(io, ",");
+        guac_write_int(io, random()%768);
+        guac_write_string(io, ",");
         png_set_rows(png, png_info, png_rows);
         png_write_png(png, png_info, PNG_TRANSFORM_IDENTITY, NULL);