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Giving sort weight 2 as default to El Torito boot images.

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This commit is contained in:
Thomas Schmitt 2013-09-07 21:37:27 +02:00
parent 7aa2582129
commit b95e1bb85c
3 changed files with 22 additions and 3 deletions
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15
libisofs/eltorito.c
View File

@ -312,7 +312,8 @@ int iso_tree_add_boot_node(IsoDir *parent, const char *name, IsoBoot **boot)
static
int create_image(IsoImage *image, const char *image_path,
enum eltorito_boot_media_type type,
struct el_torito_boot_image **bootimg)
struct el_torito_boot_image **bootimg,
IsoFile **bootnode)
{
int ret;
struct el_torito_boot_image *boot;
@ -323,6 +324,7 @@ int create_image(IsoImage *image, const char *image_path,
IsoNode *imgfile;
IsoStream *stream;
*bootnode = NULL;
ret = iso_tree_path_to_node(image, image_path, &imgfile);
if (ret < 0) {
return ret;
@ -337,6 +339,7 @@ int create_image(IsoImage *image, const char *image_path,
if (imgfile->type != LIBISO_FILE) {
return ISO_BOOT_IMAGE_NOT_VALID;
}
*bootnode = (IsoFile *) imgfile;
stream = ((IsoFile*)imgfile)->stream;
@ -461,6 +464,7 @@ int iso_image_set_boot_image(IsoImage *image, const char *image_path,
struct el_torito_boot_catalog *catalog;
ElToritoBootImage *boot_image= NULL;
IsoBoot *cat_node= NULL;
IsoFile *boot_node;
if (image == NULL || image_path == NULL || catalog_path == NULL) {
return ISO_NULL_POINTER;
@ -513,7 +517,7 @@ int iso_image_set_boot_image(IsoImage *image, const char *image_path,
}
/* create the boot image */
ret = create_image(image, image_path, type, &boot_image);
ret = create_image(image, image_path, type, &boot_image, &boot_node);
if (ret < 0) {
goto boot_image_cleanup;
}
@ -530,6 +534,8 @@ int iso_image_set_boot_image(IsoImage *image, const char *image_path,
catalog->bootimages[i] = NULL;
catalog->node = cat_node;
catalog->sort_weight = 1000; /* slightly high */
if (!boot_node->explicit_weight)
boot_node->sort_weight = 2;
iso_node_ref((IsoNode*)cat_node);
image->bootcat = catalog;
@ -700,14 +706,17 @@ int iso_image_add_boot_image(IsoImage *image, const char *image_path,
int ret;
struct el_torito_boot_catalog *catalog = image->bootcat;
ElToritoBootImage *boot_img;
IsoFile *boot_node;
if(catalog == NULL)
return ISO_BOOT_NO_CATALOG;
if (catalog->num_bootimages >= Libisofs_max_boot_imageS)
return ISO_BOOT_IMAGE_OVERFLOW;
ret = create_image(image, image_path, type, &boot_img);
ret = create_image(image, image_path, type, &boot_img, &boot_node);
if (ret < 0)
return ret;
if (!boot_node->explicit_weight)
boot_node->sort_weight = 2;
catalog->bootimages[catalog->num_bootimages] = boot_img;
catalog->num_bootimages++;
if (boot != NULL)

3
libisofs/node.c
View File

@ -1048,6 +1048,7 @@ void iso_node_set_sort_weight(IsoNode *node, int w)
}
} else if (node->type == LIBISO_FILE) {
((IsoFile*)node)->sort_weight = w;
((IsoFile*)node)->explicit_weight = 1;
}
}
@ -1430,6 +1431,8 @@ 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->from_old_session = 0;
new->explicit_weight = 0;
new->sort_weight = 0;
new->stream = stream;

7
libisofs/node.h
View File

@ -149,8 +149,15 @@ struct Iso_File
{
IsoNode node;
/* 1 = The node was loaded from an existing ISO image and still refers
to its data content there.
*/
unsigned int from_old_session : 1;
/* 1 = The node got attributed a weight by iso_node_set_sort_weight().
*/
unsigned int explicit_weight : 1;
/**
* It sorts the order in which the file data is written to the CD image.
* Higher weighting files are written at the beginning of image