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New -find action report_lba

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This commit is contained in:
Thomas Schmitt 2008-08-18 13:42:44 +00:00
parent 552911da11
commit 96121a70dc
4 changed files with 63 additions and 109 deletions
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20
xorriso/README
View File

@ -147,6 +147,26 @@ and vice versa:
| less
File Formats
Currently there is only one file format peculiar to xorriso : sector maps
which describe the valid and invalid blocks on a media or a disk copy of
a media. xorriso creates and reads these file with its option -check_media.
The file begins with 32 bytes of cleartext of which the last one is a
newline character. The first 25 say "xorriso sector bitmap v2 ", the
remaining six characters give the size of the info text as decimal number.
This number of bytes follows the first 32 and will not be interpreted
by xorriso. They are rather to inform a human reader about the media type
and its track layout.
After the info text there are two 4 byte signed integers, most significant
byte first. The first one, N, gives the number of bits in the following bitmap
and the second number S gives the number of 2 KiB blocks governed by a single
bit in the map. Then come the bits in form of 8-bit bytes.
Media block M is covered by bit B=M/S in the map, bit number B is stored in
byte B/8 as bit B%8. A valid readable data block has its bit set to 1.
libisoburn
xorriso is based on libisofs which does ISO 9600 filesystem aspects and on

11
xorriso/xorriso.1
View File

@ -2,7 +2,7 @@
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH XORRISO 1 "Aug 17, 2008"
.TH XORRISO 1 "Aug 18, 2008"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
@ -936,6 +936,15 @@ E.g.:
.br
-find / -damaged -exec report_damage
.br
"report_lba" prints files which are associated to image data blocks.
It tells the logical block address, the block number, the byte size,
and the path of each file. In future there may be reported more than one
line per file if thie file is very large.
.br
E.g.:
.br
-find / -lba_range 302000 50000 -exec report_lba
.br
"find" performs another run of -find on the matching file address. It accepts
the same params as -find, except iso_rr_path.
E.g.:

2
xorriso/xorriso_timestamp.h
View File

@ -1 +1 @@
#define Xorriso_timestamP "2008.08.17.221350"
#define Xorriso_timestamP "2008.08.18.134140"

139
xorriso/xorrisoburn.c
View File

@ -5599,6 +5599,26 @@ int Xorriso_file_eval_damage(struct XorrisO *xorriso, IsoNode *node,
}
int Xorriso_report_lba(struct XorrisO *xorriso, char *show_path,
IsoNode *node, int flag)
{
int ret, start_lba, end_lba;
off_t size;
char sfe[5*SfileadrL];
ret= Xorriso_start_end_lba(xorriso, node, &start_lba, &end_lba, &size, 0);
if(ret < 0)
return(ret);
if(ret == 0)
return(1); /* it is ok to ignore other types */
sprintf(xorriso->result_line, "File data lba: %2d , %8d , %8d , %8.f , %s\n",
0, start_lba, end_lba + 1 - start_lba, (double) size,
Text_shellsafe(show_path, sfe, 0));
Xorriso_result(xorriso, 0);
return(1);
}
int Xorriso_report_damage(struct XorrisO *xorriso, char *show_path,
IsoNode *node, int flag)
{
@ -5626,76 +5646,6 @@ int Xorriso_report_damage(struct XorrisO *xorriso, char *show_path,
}
/* <<< shall be replaced by tests and -exec report_damage
#define Xorriso_check_find_as_exeC 1
*/
#ifdef Xorriso_check_find_as_exeC
/* @param flag bit0= report about undamaged files
*/
int Xorriso_file_vs_bitmap(struct XorrisO *xorriso, char *show_path,
IsoNode *node, int flag)
{
uint32_t start_lba;
int end_lba, i, sectors, sector_size, damaged= 0, ret;
int next_good_lba, first_bad_lba= -1;
off_t size= 0, damage_start, damage_count;
struct SectorbitmaP *map;
char sfe[5*SfileadrL];
ret= iso_node_get_old_image_lba(node, &start_lba, 0);
if(ret < 0)
return(0);
if(ret == 0) {
if(flag & 1)
goto undamaged;
return(2);
}
map= xorriso->in_sector_map;
if(map == NULL) {
if(flag & 1)
goto undamaged;
return(2);
}
if(LIBISO_ISREG(node))
size= iso_file_get_size((IsoFile *) node);
end_lba= start_lba + size / 2048;
if(size % 2048)
end_lba++;
Sectorbitmap_get_layout(map, &sectors, &sector_size, 0);
sector_size/= 2048;
for(i= start_lba; i < end_lba; i+= sector_size)
if(Sectorbitmap_is_set(map, i / sector_size, 0) == 0) {
damaged= 1;
if(first_bad_lba < 0)
first_bad_lba= i;
next_good_lba= (i / sector_size + 1) * sector_size;
}
if(damaged && !(flag & 1)) {
damage_start= (first_bad_lba - start_lba) * 2048;
damage_count= (next_good_lba - start_lba) * 2048;
if(damage_count > size)
damage_count= size;
damage_count-= damage_start;
sprintf(xorriso->result_line, "File damage : %13.f , %13.f , %13.f , %s\n",
(double) damage_start, (double) damage_count, (double) size,
Text_shellsafe(show_path, sfe, 0));
Xorriso_result(xorriso, 0);
} else if((flag & 1) && !damaged) {
undamaged:;
sprintf(xorriso->result_line, "File seems ok: %s\n",
Text_shellsafe(show_path, sfe, 0));
Xorriso_result(xorriso, 0);
}
return(1);
}
#endif /* Xorriso_check_find_as_exeC */
/* @param flag bit0= not a command parameter (directory iteration or recursion)
bit1= do not count deleted files with rm and rm_r
@return <=0 error,
@ -5764,24 +5714,10 @@ int Xorriso_findi_action(struct XorrisO *xorriso, struct FindjoB *job,
ret= 1;
} else if(action==16 || action==18) { /* not_in_iso , add_missing */
;
#ifdef Xorriso_check_find_as_exeC
} else if(action == 21) { /* is_damaged */
ret= Xorriso_file_vs_bitmap(xorriso, show_path, node, 0);
} else if(action == 22) { /* is_undamaged */
ret= Xorriso_file_vs_bitmap(xorriso, show_path, node, 1);
#else
} else if(action == 21) { /* report_damage */
ret= Xorriso_report_damage(xorriso, show_path, node, 0);
} else if(action == 22) {
/* >>> report_lba */;
#endif /* ! Xorriso_check_find_as_exeC */
ret= Xorriso_report_lba(xorriso, show_path, node, 0);
} else { /* includes : 15 in_iso */
sprintf(xorriso->result_line, "%s\n", Text_shellsafe(show_path, sfe, 0));
Xorriso_result(xorriso, 0);
@ -5865,10 +5801,17 @@ int Xorriso_findi(struct XorrisO *xorriso, struct FindjoB *job,
action= Findjob_get_action(job, 0);
if(action<0)
action= 0;
if(action == 21 && !(flag & 1)) {
sprintf(xorriso->result_line, "Report layout: %8s , %8s , %8s , %s\n",
"at byte", "range", "filesize", "ISO image path");
Xorriso_result(xorriso, 0);
if(!(flag & 1)) {
if(action == 21) {
sprintf(xorriso->result_line, "Report layout: %8s , %8s , %8s , %s\n",
"at byte", "Range", "Filesize", "ISO image path");
Xorriso_result(xorriso, 0);
} else if(action == 22) {
sprintf(xorriso->result_line,
"Report layout: %2s , %8s , %8s , %8s , %s\n",
"xt", "Startlba", "Blocks", "Filesize", "ISO image path");
Xorriso_result(xorriso, 0);
}
}
dir_node= (IsoDir *) dir_node_generic;
@ -5893,17 +5836,8 @@ int Xorriso_findi(struct XorrisO *xorriso, struct FindjoB *job,
else
name++;
#ifdef Xorriso_check_find_as_exeC
ret= Findjob_test(job, name, NULL, dir_stbuf, depth, 0);
#else
ret= Xorriso_findi_test(xorriso, job, iso_node, name, NULL, dir_stbuf,
depth, 0);
#endif /* ! Xorriso_check_find_as_exeC */
if(ret<0)
goto ex;
if(ret>0) {
@ -5971,17 +5905,8 @@ int Xorriso_findi(struct XorrisO *xorriso, struct FindjoB *job,
handling of the find start path with mount points. Dangerous to change.
*/
#ifdef Xorriso_check_find_as_exeC
ret= Findjob_test(job, name, dir_stbuf, &stbuf, depth, 0);
#else
ret= Xorriso_findi_test(xorriso, job, node, name, dir_stbuf, &stbuf,
depth, 0);
#endif /* ! Xorriso_check_find_as_exeC */
if(ret<0)
goto ex;
if(ret>0) {