Check file size to ensure file bigger than 4GB are not added to image.

src/ecma119_tree.c

@@ -187,17 +187,25 @@ int create_tree(Ecma119Image *image, IsoNode *iso, Ecma119Node **tree,
     switch(iso->type) {
     case LIBISO_FILE:
         ret = create_file(image, (IsoFile*)iso, &node);
+        if (ret == ISO_FILE_TOO_BIG) {
+            free(iso_name);
+            // TODO log
+            return 0;
+        }
         break;
     case LIBISO_SYMLINK:
         //TODO only supported with RR
+        free(iso_name);
         return 0;
         break;
     case LIBISO_SPECIAL:
         //TODO only supported with RR
+        free(iso_name);
         return 0;
         break;
     case LIBISO_BOOT:
         //TODO
+        free(iso_name);
         return 0;
         break;
     case LIBISO_DIR: 

src/error.h

@@ -35,6 +35,7 @@
 #define ISO_FILE_READ_ERROR				-107
 #define ISO_FILE_IS_NOT_DIR				-108
 #define ISO_FILE_IS_NOT_SYMLINK			-109
+#define ISO_FILE_TOO_BIG                -110
 
 #define ISO_CHARSET_CONV_ERROR          -150
 

src/filesrc.c

@@ -71,6 +71,11 @@ int iso_file_src_create(Ecma119Image *img, IsoFile *file, IsoFileSrc **src)
             return ISO_FILE_ERROR;
         }
         
+        /* Files > 4GB not supported yet, they need ISO level 3 */
+        if (size > (off_t)0xffffffff) {
+            return ISO_FILE_TOO_BIG;
+        }
+        
         fsrc = malloc(sizeof(IsoFileSrc));
         if (fsrc == NULL) {
             return ISO_MEM_ERROR;