libburnia/libisofs
2
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Augmented checksum tags for superblock and tree by parameter next=

Browse Source 
for unambigous linking.
This commit is contained in:
Thomas Schmitt
2009-08-16 16:58:41 +02:00
parent b4e2a60cd9
commit 955471a064
8 changed files with 90 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
libisofs/libisofs.h
View File

@@ -5046,9 +5046,10 @@ int iso_file_get_md5(IsoImage *image, IsoFile *file, char md5[16], int flag);
/**
* Check a data block whether it is a libisofs session checksum tag and
* eventually obtain its recorded parameters. These tags get written after
* the checksum arrays and can be detected without loading the image tree.
* volume descriptors, directory tree and checksum array and can be detected
* without loading the image tree.
* One may start reading and computing MD5 at the suspected image session
* start and look out for a session tag on the fly.
* start and look out for a session tag on the fly. See doc/checksum.txt .
* @param data
* A complete and aligned data block read from an ISO image session.
* @param pos
@@ -5063,6 +5064,9 @@ int iso_file_get_md5(IsoImage *image, IsoFile *file, char md5[16], int flag);
* @param range_size
* Returns the number of blocks beginning at range_start which are
* covered by parameter md5.
* @param next_tag
* Returns the predicted block address of the next tag.
* Valid only with return values 2 and 3 and if not 0.
* @param md5
* Returns 16 byte of MD5 checksum.
* @param flag
@@ -5074,7 +5078,9 @@ int iso_file_get_md5(IsoImage *image, IsoFile *file, char md5[16], int flag);
* 3= tree tag
* @return
* 0= not a checksum tag, return parameters are invalid
* 1= checksum tag found
* 1= session tag found
* 2= superblock tag found
* 3= tree tag found
* <0= error
* return parameters are valid with error ISO_MD5_AREA_CORRUPTED
* but not trustworthy because the tag seems corrupted.
@@ -5083,7 +5089,7 @@ int iso_file_get_md5(IsoImage *image, IsoFile *file, char md5[16], int flag);
*/
int iso_util_decode_md5_tag(char data[2048], uint32_t *pos,
uint32_t *range_start, uint32_t *range_size,
char md5[16], int flag);
uint32_t *next_tag, char md5[16], int flag);
/* The following functions allow to do own MD5 computations. E.g for