Changed new API call from iso_image_set_boot_platform_id() to

el_torito_set_boot_platform_id().
Introduced new API call iso_image_set_boot_catalog_weight().

libisofs/eltorito.c

@@ -56,6 +56,13 @@ struct hard_disc_mbr {
     uint8_t sign2;
 };
 
+/* API */
+int el_torito_set_boot_platform_id(ElToritoBootImage *bootimg, uint8_t id)
+{
+    bootimg->platform_id = id;
+    return 1;
+}
+
 /**
  * Sets the load segment for the initial boot image. This is only for
  * no emulation boot images, and is a NOP for other image types.
@@ -339,6 +346,7 @@ int create_image(IsoImage *image, const char *image_path,
     boot->partition_type = partition_type;
     boot->load_seg = 0;
     boot->load_size = load_sectors;
+    boot->platform_id = 0; /* 80x86 */
 
     if (bootimg) {
         *bootimg = boot;
@@ -418,7 +426,7 @@ int iso_image_set_boot_image(IsoImage *image, const char *image_path,
     }
     catalog->image = boot_image;
     catalog->node = cat_node;
-    catalog->platform_id = 0;                            /* Default is 80x86 */
+    catalog->sort_weight = 1000;                            /* slightly high */
     iso_node_ref((IsoNode*)cat_node);
     image->bootcat = catalog;
 
@@ -521,11 +529,11 @@ void iso_image_remove_boot_image(IsoImage *image)
 }
 
 /* API */
-int iso_image_set_boot_platform_id(IsoImage *image, uint8_t id)
+int iso_image_set_boot_catalog_weight(IsoImage *image, int sort_weight)
 {
     if (image->bootcat == NULL)
         return 0;
-    image->bootcat->platform_id = id;
+    image->bootcat->sort_weight = sort_weight;
     return 1;
 }
 
@@ -735,7 +743,7 @@ int catalog_stream_new(Ecma119Image *target, IsoStream **stream)
     /* fill data */
     data->target = target;
     data->offset = -1;
-    data->platform_id = target->catalog->platform_id;
+    data->platform_id = target->catalog->image->platform_id;
 
     str->refcount = 1;
     str->data = data;
@@ -777,7 +785,7 @@ int el_torito_catalog_file_src_create(Ecma119Image *target, IsoFileSrc **src)
     file->checksum_index = 0;
     file->nsections = 1;
     file->sections = calloc(1, sizeof(struct iso_file_section));
-    file->sort_weight = 1000; /* slightly high */
+    file->sort_weight = target->catalog->sort_weight;
     file->stream = stream;
 
     ret = iso_file_src_add(target, file, src);

libisofs/eltorito.h

@@ -32,8 +32,8 @@ struct el_torito_boot_catalog {
     struct el_torito_boot_image *image; /* default boot image */
 
     /* ts B00419 */
-    /* Byte 1 of Validation Entry:  0= 80x86, 1= PowerPC, 2= Mac, 0xef= EFI */
+    /* Weight value for image sorting */
-    uint8_t platform_id;
+    int sort_weight;
 
     /* >>> ts B00419 : List of further boot images */
 
@@ -54,6 +54,11 @@ struct el_torito_boot_image {
     unsigned char partition_type; /**< type of partition for HD-emul images */
     short load_seg; /**< Load segment for the initial boot image. */
     short load_size; /**< Number of sectors to load. */
+
+    /* ts B00419 */
+    /* Byte 1 of Validation Entry or Section Header Entry:
+       0= 80x86, 1= PowerPC, 2= Mac, 0xef= EFI */
+    uint8_t platform_id;
 };
 
 /** El-Torito, 2.1 */

libisofs/libisofs.h

@@ -2378,25 +2378,42 @@ int iso_image_get_boot_image(IsoImage *image, ElToritoBootImage **boot,
 void iso_image_remove_boot_image(IsoImage *image);
 
 /**
- * Sets the platform ID of the boot catalog that is attached to an IsoImage.
+ * Sets the sort weight of the boot catalog that is attached to an IsoImage.
  * 
- * A boot catalog gets attached by iso_image_set_boot_image() and removed
+ * For the meaning of sort weights see iso_node_set_sort_weight().
- * by iso_image_remove_boot_image(). It is described in El Torito specs.
+ * That function cannot be applied to the emerging boot catalog because
- * Platform ID is byte 1 of the Validation Entry, i.e. byte 1 of the boot
+ * it is not represented by an IsoNode.
- * catalog record.
  *
  * @param image
  *      The image to manipulate.
+ * @param sort_weight
+ *      The larger this value, the lower will be the block address of the
+ *      boot catalog record.
+ * @return
+ *      0= no boot catalog attached , 1= ok , <0 = error
+ *
+ * @since 0.6.32
+ */
+int iso_image_set_boot_catalog_weight(IsoImage *image, int sort_weight);
+
+/**
+ * Sets the platform ID of the boot image.
+ * 
+ * The Platform ID gets written into the boot catalog at byte 1 of the
+ * Validation Entry, or at byte 1 of a Section Header Entry.
+ *
+ * @param bootimg
+ *      The image to manipulate.
  * @param id
  *      A Platform ID as of
  *      El Torito 1.0  : 0x00= 80x86,  0x01= PowerPC,  0x02= Mac
  *      Others         : 0xef= EFI
  * @return
- *      0= no boot catalog attached , 1= ok , <0 = error
+ *      1 ok , <=0 error
  *
  * @since 0.6.32
  */
-int iso_image_set_boot_platform_id(IsoImage *image, uint8_t id);
+int el_torito_set_boot_platform_id(ElToritoBootImage *bootimg, uint8_t id);
 
 /**
  * Sets the load segment for the initial boot image. This is only for
@@ -3173,8 +3190,8 @@ const char *iso_symlink_get_dest(const IsoSymlink *link);
 int iso_symlink_set_dest(IsoSymlink *link, const char *dest);
 
 /**
- * Sets the order in which a node will be written on image. High weihted files
+ * Sets the order in which a node will be written on image. The data content
- * will be written first, so in a disc them will be written near the center.
+ * of files with high weight will be written to low block addresses.
  *
  * @param node
  *      The node which weight will be changed. If it's a dir, this function
@@ -3183,6 +3200,7 @@ int iso_symlink_set_dest(IsoSymlink *link, const char *dest);
  * @param w
  *      The weight as a integer number, the greater this value is, the
  *      closer from the begining of image the file will be written.
+ *      Default value at IsoNode creation is 0.
  *
  * @since 0.6.2
  */

libisofs/node.c

@@ -1284,6 +1284,7 @@ int iso_node_new_file(char *name, IsoStream *stream, IsoFile **file)
     new->node.type = LIBISO_FILE;
     new->node.name = name;
     new->node.mode = S_IFREG;
+    new->sort_weight = 0;
     new->stream = stream;
 
     *file = new;