libburnia/libisofs
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Control size of extents with #define blocks, to help testing.

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This commit is contained in:
Vreixo Formoso 2008-08-19 19:44:47 +02:00
parent 643dbef05c
commit ff480b35e9
6 changed files with 73 additions and 59 deletions
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12
libisofs/ecma119.h
View File

@ -18,6 +18,18 @@
#define BLOCK_SIZE 2048
/*
* Maximum file section size. Set to 4GB - 1 = 0xffffffff
*/
#define MAX_ISO_FILE_SECTION_SIZE 0xffffffff
/*
* When a file need to be splitted in several sections, the maximum size
* of such sections, but the last one. Set to a multiple of BLOCK_SIZE.
* Default to 4GB - 2048 = 0xFFFFF800
*/
#define ISO_EXTENT_SIZE 0xFFFFF800
/**
* Holds the options for the image generation.
*/

2
libisofs/ecma119_tree.c
View File

@ -161,7 +161,7 @@ int create_file(Ecma119Image *img, IsoFile *iso, Ecma119Node **node)
off_t size;
size = iso_stream_get_size(iso->stream);
if (size > (off_t)0xffffffff && img->iso_level != 3) {
if (size > (off_t)MAX_ISO_FILE_SECTION_SIZE && img->iso_level != 3) {
return iso_msg_submit(img->image->id, ISO_FILE_TOO_BIG, 0,
"File \"%s\" can't be added to image because "
"is greater than 4GB", iso->node.name);

16
libisofs/filesrc.c
View File

@ -187,26 +187,28 @@ int filesrc_writer_compute_data_blocks(IsoImageWriter *writer)
IsoFileSrc *file = filelist[i];
off_t section_size = iso_stream_get_size(file->stream);
if (section_size > (off_t) 0xffffffff) {
if (section_size > (off_t) MAX_ISO_FILE_SECTION_SIZE) {
file->nsections = DIV_UP(iso_stream_get_size(file->stream)
- (off_t) 0xffffffff, (off_t)0xFFFFF800) + 1;
- (off_t) MAX_ISO_FILE_SECTION_SIZE,
(off_t)ISO_EXTENT_SIZE) + 1;
} else {
file->nsections = 1;
}
file->sections = realloc(file->sections, file->nsections *
sizeof(struct iso_file_section));
for (extent = 0; extent < file->nsections - 1; ++extent) {
file->sections[extent].block = t->curblock + extent * 2097151;
file->sections[extent].size = 0xFFFFF800;
section_size -= (off_t) 0xFFFFF800;
file->sections[extent].block = t->curblock + extent *
(ISO_EXTENT_SIZE / BLOCK_SIZE);
file->sections[extent].size = ISO_EXTENT_SIZE;
section_size -= (off_t) ISO_EXTENT_SIZE;
}
/*
* final section
*/
file->sections[extent].block = t->curblock + extent * 2097151;
file->sections[extent].block = t->curblock + extent * (ISO_EXTENT_SIZE / BLOCK_SIZE);
file->sections[extent].size = section_size;
section_size -= (off_t) 0xFFFFF800;
section_size -= (off_t) ISO_EXTENT_SIZE;
t->curblock += DIV_UP(iso_file_src_get_size(file), BLOCK_SIZE);
}

2
libisofs/iso1999.c
View File

@ -117,7 +117,7 @@ int create_node(Ecma119Image *t, IsoNode *iso, Iso1999Node **node)
IsoFile *file = (IsoFile*) iso;
size = iso_stream_get_size(file->stream);
if (size > (off_t)0xffffffff && t->iso_level != 3) {
if (size > (off_t)MAX_ISO_FILE_SECTION_SIZE && t->iso_level != 3) {
free(n);
return iso_msg_submit(t->image->id, ISO_FILE_TOO_BIG, 0,
"File \"%s\" can't be added to image because is "

2
libisofs/joliet.c
View File

@ -111,7 +111,7 @@ int create_node(Ecma119Image *t, IsoNode *iso, JolietNode **node)
IsoFile *file = (IsoFile*) iso;
size = iso_stream_get_size(file->stream);
if (size > (off_t)0xffffffff && t->iso_level != 3) {
if (size > (off_t)MAX_ISO_FILE_SECTION_SIZE && t->iso_level != 3) {
free(joliet);
return iso_msg_submit(t->image->id, ISO_FILE_TOO_BIG, 0,
"File \"%s\" can't be added to image because is "

2
libisofs/libisofs.h
View File

@ -2546,7 +2546,7 @@ int iso_file_get_old_image_lba(IsoFile *file, uint32_t *lba, int flag);
* @param file
* The file
* @param section_count
* Returns the number of extent entries in sections arrays
* Returns the number of extent entries in sections array.
* @param sections
* Returns the array of file sections. Apply free() to dispose it.
* @param flag