struct iso_read_image_features is now allocated by libisofs.

demo/iso_grow.c

@@ -32,7 +32,7 @@ int main(int argc, char **argv)
     unsigned char buf[32 * 2048];
     IsoWriteOpts *opts;
     int ret = 0;
-    struct iso_read_image_features features;
+    struct iso_read_image_features *features;
     uint32_t ms_block;
     IsoReadOpts *ropts;
 	
@@ -124,10 +124,12 @@ int main(int argc, char **argv)
     }
     
     /* round up to 32kb aligment = 16 block */
-    ms_block = ((features.size + 15) / 16 ) * 16;
+    ms_block = ((features->size + 15) / 16 ) * 16;
     iso_write_opts_set_ms_block(opts, ms_block);
     iso_write_opts_set_appendable(opts, 1);
     iso_write_opts_set_overwrite_buf(opts, buf);
+    
+    free(features);
 
     result = iso_image_create_burn_source(image, opts, &burn_src);
     if (result < 0) {

src/fs_image.c

@@ -2202,7 +2202,7 @@ boot_fs_cleanup: ;
 
 int iso_image_import(IsoImage *image, IsoDataSource *src,
                      struct iso_read_opts *opts, 
-                     struct iso_read_image_features *features)
+                     struct iso_read_image_features **features)
 {
     int ret;
     IsoImageFilesystem *fs;
@@ -2346,11 +2346,16 @@ int iso_image_import(IsoImage *image, IsoDataSource *src,
     iso_image_set_biblio_file_id(image, data->biblio_file_id);
 
     if (features != NULL) {
-        features->hasJoliet = data->joliet;
-        features->hasRR = data->rr_version != 0;
-        features->hasIso1999 = data->iso1999;
-        features->hasElTorito = data->eltorito;
-        features->size = data->nblocks;
+        *features = malloc(sizeof(struct iso_read_image_features));
+        if (*features == NULL) {
+            ret = ISO_OUT_OF_MEM;
+            goto import_cleanup;
+        }
+        (*features)->hasJoliet = data->joliet;
+        (*features)->hasRR = data->rr_version != 0;
+        (*features)->hasIso1999 = data->iso1999;
+        (*features)->hasElTorito = data->eltorito;
+        (*features)->size = data->nblocks;
     }
     
     ret = ISO_SUCCESS;

src/libisofs.h

@@ -171,6 +171,12 @@ struct iso_data_source {
  */
 struct iso_read_image_features
 {
+    /** 
+     * Will be filled with the size (in 2048 byte block) of the image, as 
+     * reported in the PVM. 
+     */
+    uint32_t size; 
+    
     /** It will be set to 1 if RR extensions are present, to 0 if not. */
     unsigned int hasRR :1;
     
@@ -185,12 +191,6 @@ struct iso_read_image_features
     
     /** It will be set to 1 if El-Torito boot record is present, to 0 if not.*/
     unsigned int hasElTorito :1;
-    
-    /** 
-     * Will be filled with the size (in 2048 byte block) of the image, as 
-     * reported in the PVM. 
-     */
-    uint32_t size; 
 };
 
 typedef struct iso_file_source IsoFileSource;
@@ -946,14 +946,15 @@ int iso_read_opts_set_input_charset(IsoReadOpts *opts, const char *charset);
  * @param opts
  *     Options for image import
  * @param features
- *     Will be filled with the features of the old image. You can pass NULL
- *     if you're not interested on them.
+ *     If not NULL, a new  struct iso_read_image_features will be allocated
+ *     and filled with the features of the old image. It should be freed when
+ *     no more needed. You can pass NULL if you're not interested on them.
  * @return
  *     1 on success, < 0 on error
  */
 int iso_image_import(IsoImage *image, IsoDataSource *src,
                      IsoReadOpts *opts, 
-                     struct iso_read_image_features *features);
+                     struct iso_read_image_features **features);
 
 /**
  * Increments the reference counting of the given image.