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[iso] improve Rock Ridge CE handling

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Pete Batard 2023-03-23 14:47:53 +00:00
parent 365449fcce
commit e524e81e99
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GPG key ID: 38E0CF5E69EDD671
6 changed files with 44 additions and 27 deletions
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1
.vs/libcdio-iso9660.vcxproj
View file

@ -41,6 +41,7 @@
<ClInclude Include="..\src\libcdio\cdio\iso9660.h" />
<ClInclude Include="..\src\libcdio\cdio\logging.h" />
<ClInclude Include="..\src\libcdio\cdio\portable.h" />
<ClInclude Include="..\src\libcdio\cdio\rock.h" />
<ClInclude Include="..\src\libcdio\cdio\utf8.h" />
<ClInclude Include="..\src\libcdio\cdio\util.h" />
<ClInclude Include="..\src\libcdio\config.h" />

3
.vs/libcdio-iso9660.vcxproj.filters
View file

@ -53,6 +53,9 @@
<ClInclude Include="..\src\libcdio\cdio\portable.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="..\src\libcdio\cdio\rock.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\src\libcdio\iso9660\iso9660_fs.c">

8
src/libcdio/cdio/rock.h
View file

@ -112,10 +112,10 @@ typedef struct iso_su_er_s {
} GNUC_PACKED iso_su_er_t;
typedef struct iso_su_ce_s {
uint8_t extent[8];
uint8_t offset[8];
uint8_t size[8];
} iso_su_ce_t;
iso733_t extent;
iso733_t offset;
iso733_t size;
} GNUC_PACKED iso_su_ce_t;
/*! POSIX file attributes, PX. See Rock Ridge Section 4.1.2 */
typedef struct iso_rock_px_s {

2
src/libcdio/iso9660/iso9660.c
View file

@ -729,7 +729,7 @@ iso9660_dir_add_entry_su(void *dir,
unsigned int offset = 0;
uint32_t dsize = from_733(idr->size);
int length, su_offset;
struct tm temp_tm;
struct tm temp_tm = { 0 };
cdio_assert (sizeof(iso9660_dir_t) == 33);
if (!dsize && !idr->length)

45
src/libcdio/iso9660/rock.c
View file

@ -20,7 +20,8 @@
*/
/* Rock Ridge Extensions to iso9660 */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
@ -104,17 +105,17 @@ realloc_symlink(/*in/out*/ iso9660_stat_t *p_stat, uint8_t i_grow)
#define CONTINUE_DECLS \
uint32_t cont_extent = 0, cont_offset = 0, cont_size = 0; \
uint8_t *buffer = NULL
uint8_t *buffer = NULL, ce_count = 0
#define CHECK_CE(FAIL) \
{ cont_extent = from_733(*rr->u.CE.extent); \
cont_offset = from_733(*rr->u.CE.offset); \
{ cont_extent = from_733(rr->u.CE.extent); \
cont_offset = from_733(rr->u.CE.offset); \
if (cont_offset >= ISO_BLOCKSIZE) FAIL; \
cont_size = from_733(*rr->u.CE.size); \
cont_size = from_733(rr->u.CE.size); \
if (cont_size >= ISO_BLOCKSIZE) FAIL; \
}
#define SETUP_ROCK_RIDGE(DE,CHR,LEN) \
#define SETUP_ROCK_RIDGE(DE, CHR, LEN) \
{ \
LEN= sizeof(iso9660_dir_t) + DE->filename.len; \
if (LEN & 1) LEN++; \
@ -181,7 +182,7 @@ get_rock_ridge_filename(iso9660_dir_t * p_iso9660_dir,
*psz_name = 0;
SETUP_ROCK_RIDGE(p_iso9660_dir, chr, len);
/*repeat:*/
repeat:
{
iso_extension_record_t * rr;
int sig;
@ -217,15 +218,10 @@ get_rock_ridge_filename(iso9660_dir_t * p_iso9660_dir,
}
CHECK_CE({cdio_warn("Invalid Rock Ridge CE field"); goto out;});
p_stat->rr.u_su_fields |= ISO_ROCK_SUF_CE;
/* We may already be processing a continuation block so free it */
free(buffer);
buffer = calloc(1, ISO_BLOCKSIZE);
if (!buffer)
goto out;
if (iso9660_iso_seek_read(p_image, buffer, cont_extent, 1) != ISO_BLOCKSIZE)
goto out;
chr = &buffer[cont_offset];
len = cont_size;
/* Though no mastering utility in its right mind would produce anything
like this, the specs make it theoretically possible to have more RR
extensions after a CE, so we delay the CE block processing for later.
*/
break;
case SIG('E','R'):
cdio_debug("ISO 9660 Extensions: ");
@ -379,9 +375,26 @@ get_rock_ridge_filename(iso9660_dir_t * p_iso9660_dir,
}
}
}
/* Process delayed CE blocks */
if (cont_size != 0) {
free(buffer);
buffer = calloc(1, ISO_BLOCKSIZE);
if (!buffer)
goto out;
if (iso9660_iso_seek_read(p_image, buffer, cont_extent, 1) != ISO_BLOCKSIZE)
goto out;
chr = &buffer[cont_offset];
len = cont_size;
cont_size = 0;
/* Someone abusing the specs may also be creating looping CEs */
if (ce_count++ < 64)
goto repeat;
else
cdio_warn("More than 64 consecutive Rock Ridge CEs detected");
}
if (p_stat->rr.u_su_fields & ISO_ROCK_SUF_FORMAL)
p_stat->rr.b3_rock = yep;
free(buffer);
return i_namelen; /* If 0, this file did not have a NM field */
out:
free(buffer);

10
src/rufus.rc
View file

@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDD_DIALOG DIALOGEX 12, 12, 232, 326
STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_ACCEPTFILES
CAPTION "Rufus 3.22.2005"
CAPTION "Rufus 3.22.2006"
FONT 9, "Segoe UI Symbol", 400, 0, 0x0
BEGIN
LTEXT "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@ -392,8 +392,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 3,22,2005,0
PRODUCTVERSION 3,22,2005,0
FILEVERSION 3,22,2006,0
PRODUCTVERSION 3,22,2006,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -411,13 +411,13 @@ BEGIN
VALUE "Comments", "https://rufus.ie"
VALUE "CompanyName", "Akeo Consulting"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "3.22.2005"
VALUE "FileVersion", "3.22.2006"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011-2023 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
VALUE "OriginalFilename", "rufus-3.22.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "3.22.2005"
VALUE "ProductVersion", "3.22.2006"
END
END
BLOCK "VarFileInfo"