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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/bzip2recover_8c_source.html below:

NCBI C++ ToolKit: src/util/compress/bzip2/bzip2recover.c Source File

40 # define MaybeUInt64_FMT "%Lu" 44 # define MaybeUInt64_FMT "%I64u" 47 # define MaybeUInt64_FMT "%u" 55 typedef unsigned char Bool

;

56 #define True ((Bool)1) 57 #define False ((Bool)0) 60 #define BZ_MAX_FILENAME 2000 88 "%s: I/O error reading `%s', possible reason follows.\n"

91

fprintf ( stderr,

"%s: warning: output file(s) may be incomplete.\n"

101 "%s: I/O error reading `%s', possible reason follows.\n"

104

fprintf ( stderr,

"%s: warning: output file(s) may be incomplete.\n"

114 "%s: malloc failed on request for %d bytes.\n"

116

fprintf ( stderr,

"%s: warning: output file(s) may be incomplete.\n"

126 "%s: `%s' appears to contain more than %d blocks\n"

129 "%s: and cannot be handled. To fix, increase\n"

132 "%s: BZ_MAX_HANDLED_BLOCKS in bzip2recover.c, and recompile.\n"

206 if

( retVal == EOF ) {

212 return

( ((bs->

buffer

) >> 7) & 0x1 );

222 if

( bs->

mode

'w'

) {

230

retVal = fflush ( bs->

handle

);

233

retVal = fclose ( bs->

handle

);

245 for

(

= 7;

>= 0;

--)

255 for

(

= 31;

>= 0;

--)

263 Int32 n

= strlen ( name );

264 if

(

<= 4)

return False

;

266

(name[

-4] ==

'.'

267

name[

-3] ==

'b'

268

name[

-2] ==

'z'

269

name[

-1] ==

'2'

);

279 # define BZ_SPLIT_SYM '\\' 281 # define BZ_SPLIT_SYM '/' 284 #define BLOCK_HEADER_HI 0x00003141UL 285 #define BLOCK_HEADER_LO 0x59265359UL 287 #define BLOCK_ENDMARK_HI 0x00001772UL 288 #define BLOCK_ENDMARK_LO 0x45385090UL 294 #define BZ_MAX_HANDLED_BLOCKS 50000 306 Int32 b

, wrBlock, currBlock, rbCtr;

309 UInt32

buffHi, buffLo, blockCRC;

317 "bzip2recover 1.0.8: extracts blocks from damaged .bz2 files.\n"

);

320

fprintf ( stderr,

"%s: usage is `%s damaged_file_name'.\n"

325 "\trestrictions on size of recovered file: None\n"

);

329 "\trestrictions on size of recovered file: 512 MB\n"

);

331 "\tto circumvent, recompile with MaybeUInt64 as an\n" 332 "\tunsigned 64-bit int.\n"

);

336 "\tsizeof(MaybeUInt64) is not 4 or 8 -- " 337 "configuration error.\n"

);

345 "%s: supplied filename is suspiciously (>= %d chars) long. Bye!\n"

346 progName

, (

int

)strlen(argv[1]) );

353 if

(inFile ==

NULL

) {

359

fprintf ( stderr,

"%s: searching for block boundaries ...\n"

progName

);

372 if

(bitsRead >=

bStart

[currBlock] &&

373

(bitsRead -

bStart

[currBlock]) >= 40) {

374 bEnd

[currBlock] = bitsRead-1;

378

currBlock,

bStart

[currBlock],

bEnd

[currBlock] );

383

buffHi = (buffHi << 1) | (buffLo >> 31);

384

buffLo = (buffLo << 1) | (

& 1);

392 bEnd

[currBlock] = bitsRead-49;

394 bEnd

[currBlock] = 0;

397

(

bEnd

[currBlock] -

bStart

[currBlock]) >= 130) {

400

rbCtr+1,

bStart

[currBlock],

bEnd

[currBlock] );

409 bStart

[currBlock] = bitsRead;

419 "%s: sorry, I couldn't find any block boundaries.\n"

424

fprintf ( stderr,

"%s: splitting into blocks\n"

progName

);

427 if

(inFile ==

NULL

) {

434

blockCRC = 0; bsWr = 0;

442

buffHi = (buffHi << 1) | (buffLo >> 31);

443

buffLo = (buffLo << 1) | (

& 1);

444 if

(bitsRead == 47+

rbStart

[wrBlock])

445

blockCRC = (buffHi << 16) | (buffLo >> 16);

447 if

(outFile !=

NULL

&& bitsRead >=

rbStart

[wrBlock]

448

&& bitsRead <=

rbEnd

[wrBlock]) {

454 if

(bitsRead ==

rbEnd

[wrBlock]+1) {

455 if

(outFile !=

NULL

) {

463 if

(wrBlock >= rbCtr)

break

;

466 if

(bitsRead ==

rbStart

[wrBlock]) {

482

sprintf (

split

"rec%5d"

, wrBlock+1);

483 for

(p =

split

; *p != 0; p++)

if

(*p ==

' '

) *p =

'0'

;

488

fprintf ( stderr,

" writing block %d to `%s' ...\n"

492 if

(outFile ==

NULL

) {

493

fprintf ( stderr,

"%s: can't write `%s'\n"

508

fprintf ( stderr,

"%s: finished\n"

progName

);

static Int32 bsGetBit(BitStream *bs)

static BitStream * bsOpenWriteStream(FILE *stream)

static Bool endsInBz2(Char *name)

static void bsPutUChar(BitStream *bs, UChar c)

MaybeUInt64 rbStart[50000]

static void bsPutUInt32(BitStream *bs, UInt32 c)

#define BZ_MAX_HANDLED_BLOCKS

static void writeError(void)

static void bsClose(BitStream *bs)

static void tooManyBlocks(Int32 max_handled_blocks)

MaybeUInt64 bStart[50000]

Int32 main(Int32 argc, Char **argv)

static BitStream * bsOpenReadStream(FILE *stream)

static void mallocFail(Int32 n)

static void readError(void)

static void bsPutBit(BitStream *bs, Int32 bit)

char Char

Alias for char.

void split(std::vector< std::string > *strVec, const std::string &str_, const std::string &split_)

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