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Reference Guide
TZIPFile.cxx
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1// @(#)root/io:$Id$
2// Author: Fons Rademakers and Lassi Tuura 30/6/04
3
4/*************************************************************************
5 * Copyright (C) 1995-2004, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12/**
13\class TZIPFile
14\ingroup IO
15
16Describes a ZIP archive file containing multiple sub-files.
17
18Typically the sub-files are ROOT files. Notice that
19the ROOT files should not be compressed when being added to the
20ZIP file, since ROOT files are normally already compressed.
21Such a ZIP file should be created like:
22 zip -n root multi file1.root file2.root
23which creates a ZIP file multi.zip.
24A ZIP archive consists of files compressed with the popular ZLIB
25compression algorithm. The archive format is used among others by
26PKZip and Info-ZIP. The compression algorithm is also used by
27GZIP and the PNG graphics standard. The format of the archives is
28explained briefly below. This class provides an interface to read
29such archives.
30A ZIP archive contains a prefix, series of archive members
31(sub-files), and a central directory. In theory the archive could
32span multiple disks (or files) with the central directory of the
33whole archive on the last disk, but this class does not support
34such multi-part archives. The prefix is only used in self-extracting
35executable archive files.
36The members are stored in the archive sequentially, each with a
37local header followed by the (optionally) compressed data; the local
38header describes the member, including its file name and compressed
39and real sizes. The central directory includes the member details
40again, plus allows an extra member comment to be added. The last
41member in the central directory is an end marker that can contain
42a comment for the whole archive. Both the local header and the
43central directory can also carry extra member-specific data; the
44data in the local and global parts can be different.
45The fact that the archive has a global directory makes it efficient
46and allows for only the reading of the desired data, one does not
47have to scan through the whole file to find the desired sub-file.
48The Zip64 extensions are supported so files larger than 2GB can be
49stored in archives larger than 4 GB.
50Once the archive has been opened, the client can query the members
51and read their contents by asking the archive for an offset where
52the sub-file starts. The members can be accessed in any order.
53*/
54
55#include "TZIPFile.h"
56#include "TFile.h"
57#include "TObjArray.h"
58
59
61
62////////////////////////////////////////////////////////////////////////////////
63/// Default ctor.
64
66{
67 fDirPos = 0;
68 fDirSize = 0;
69 fDirOffset = 0;
70}
71
72////////////////////////////////////////////////////////////////////////////////
73/// Specify the archive name and member name. The member can be a decimal
74/// number which allows to access the n-th member.
75
76TZIPFile::TZIPFile(const char *archive, const char *member, TFile *file)
77 : TArchiveFile(archive, member, file)
78{
79 fDirPos = 0;
80 fDirSize = 0;
81 fDirOffset = 0;
82}
83
84////////////////////////////////////////////////////////////////////////////////
85/// Open archive and read end-header and directory. Returns -1 in case
86/// of error, 0 otherwise.
87
89{
90 if (ReadEndHeader(FindEndHeader()) == -1)
91 return -1;
92 return ReadDirectory();
93}
94
95////////////////////////////////////////////////////////////////////////////////
96/// Find the end header of the ZIP archive. Returns 0 in case of error.
97
99{
100 const Int_t kBUFSIZE = 1024;
101 Long64_t size = fFile->GetSize();
103 char buf[kBUFSIZE+4];
104
105 // Note, this works correctly even if the signature straddles read
106 // boundaries since we always read an overlapped area of four
107 // bytes on the next read
108 for (Long64_t offset = 4; offset < limit; ) {
109 offset = TMath::Min(offset + kBUFSIZE, limit);
110
111 Long64_t pos = size - offset;
112 Int_t n = TMath::Min(kBUFSIZE+4, Int_t(offset));
113
114 fFile->Seek(pos);
115 if (fFile->ReadBuffer(buf, n)) {
116 Error("FindEndHeader", "error reading %d bytes at %lld", n, pos);
117 return 0;
118 }
119
120 for (Int_t i = n - 4; i > 0; i--)
121 if (buf[i] == 0x50 && buf[i+1] == 0x4b &&
122 buf[i+2] == 0x05 && buf[i+3] == 0x06) {
123 return pos + i;
124 }
125 }
126
127 Error("FindEndHeader", "did not find end header in %s", fArchiveName.Data());
128
129 return 0;
130}
131
132////////////////////////////////////////////////////////////////////////////////
133/// Read the end header of the ZIP archive including the archive comment
134/// at the current file position. Check that it really was a single-disk
135/// archive with all the entries as expected. Most importantly, figure
136/// out where the central directory begins. Returns -1 in case of error,
137/// 0 otherwise.
138
140{
141 char buf[kEND_HEADER_SIZE];
142
143 // read and validate first the end header magic
144 fFile->Seek(pos);
145 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN) ||
147 Error("ReadEndHeader", "wrong end header magic in %s", fArchiveName.Data());
148 return -1;
149 }
150
151 // read rest of the header
153 Error("ReadEndHeader", "error reading %d end header bytes from %s",
155 return -1;
156 }
157
158 UInt_t disk = Get(buf + kEND_DISK_OFF, kEND_DISK_LEN);
165
166 if (disk != 0 || dirdisk != 0) {
167 Error("ReadHeader", "only single disk archives are supported in %s",
169 return -1;
170 }
171 if (dhdrs != thdrs) {
172 Error("ReadEndHeader", "inconsistency in end header data in %s",
174 return -1;
175 }
176
177 char *comment = new char[commlen+1];
178 if (fFile->ReadBuffer(comment, commlen)) {
179 Error("ReadEndHeader", "error reading %d end header comment bytes from %s",
180 commlen, fArchiveName.Data());
181 delete [] comment;
182 return -1;
183 }
184 comment[commlen] = '\0';
185
187 fDirOffset = fDirPos = diroff;
188 fDirSize = dirsz;
189
190 delete [] comment;
191
192 // Try to read Zip64 end of central directory locator
194 if (recoff < 0) {
195 if (recoff == -1)
196 return -1;
197 return 0;
198 }
199
200 if (ReadZip64EndRecord(recoff) < 0)
201 return -1;
202
203 return 0;
204}
205
206////////////////////////////////////////////////////////////////////////////////
207/// Read Zip64 end of central directory locator. Returns -1 in case of error,
208/// -2 in case end locator magic is not found (i.e. not a zip64 file) and
209/// offset of Zip64 end of central directory record in case of success.
210
212{
213 char buf[kZIP64_EDL_HEADER_SIZE];
214
215 // read and validate first the end header magic
216 fFile->Seek(pos);
217 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN) ||
219 return -2;
220 }
221
222 // read rest of the header
224 Error("ReadZip64EndLocator", "error reading %d Zip64 end locator header bytes from %s",
226 return -1;
227 }
228
232
233 if (dirdisk != 0 || totdisk != 1) {
234 Error("ReadZip64EndLocator", "only single disk archives are supported in %s",
236 return -1;
237 }
238
239 return recoff;
240}
241
242////////////////////////////////////////////////////////////////////////////////
243/// Read Zip64 end of central directory record. Returns -1 in case of error
244/// and 0 in case of success.
245
247{
248 char buf[kZIP64_EDR_HEADER_SIZE];
249
250 // read and validate first the end header magic
251 fFile->Seek(pos);
252 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN) ||
254 Error("ReadZip64EndRecord", "no Zip64 end of directory record\n");
255 return -1;
256 }
257
258 // read rest of the header
260 Error("ReadZip64EndRecord", "error reading %d Zip64 end record header bytes from %s",
262 return -1;
263 }
264
267
268 fDirOffset = fDirPos = diroff;
269 fDirSize = dirsz;
270
271 return 0;
272}
273
274////////////////////////////////////////////////////////////////////////////////
275/// Read the directory of the ZIP archive. Returns -1 in case of error,
276/// 0 otherwise.
277
279{
280 char buf[kDIR_HEADER_SIZE];
281 UInt_t n, i;
282
283 // read and validate first the header magic
285 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN) ||
286 (n = Get(buf, kZIP_MAGIC_LEN)) != kDIR_HEADER_MAGIC) {
287 Error("ReadDirectory", "wrong directory header magic in %s",
289 return -1;
290 }
291
292 // now read the full directory
293 for (i = 0; n == kDIR_HEADER_MAGIC; i++) {
294 // read the rest of the header
296 Error("ReadDirectory", "error reading %d directory bytes from %s",
298 return -1;
299 }
300
301 UInt_t version = Get(buf + kDIR_VREQD_OFF, kDIR_VREQD_LEN);
302 UInt_t flags = Get(buf + kDIR_FLAG_OFF, kDIR_FLAG_LEN);
303 UInt_t method = Get(buf + kDIR_METHOD_OFF, kDIR_METHOD_LEN);
304 UInt_t time = Get(buf + kDIR_DATE_OFF, kDIR_DATE_LEN);
305 UInt_t crc32 = Get(buf + kDIR_CRC32_OFF, kDIR_CRC32_LEN);
308 Int_t namelen = Get(buf + kDIR_NAMELEN_OFF, kDIR_NAMELEN_LEN);
315
316 // check value sanity and the variable-length fields
318 version > kARCHIVE_VERSION ||
319 flags & 8 ||
320 (method != kSTORED && method != kDEFLATED) ||
321 disk != 0 ||
322 csize < 0 ||
323 usize < 0 ||
324 csize > kMaxUInt ||
325 usize > kMaxUInt) {
326 Error("ReadDirectory", "inconsistency in directory data in %s",
328 return -1;
329 }
330
331 char *name = new char[namelen+1];
332 char *extra = new char[extlen];
333 char *comment = new char[commlen+1];
334 if (fFile->ReadBuffer(name, namelen) ||
335 fFile->ReadBuffer(extra, extlen) ||
336 fFile->ReadBuffer(comment, commlen)) {
337 Error("ReadDirectory", "error reading additional directory data from %s",
339 delete [] name;
340 delete [] extra;
341 delete [] comment;
342 return -1;
343 }
344 name[namelen] = '\0';
345 comment[commlen] = '\0';
346
347 // create a new archive member and store the fields
348 TZIPMember *m = new TZIPMember(name);
349 fMembers->Add(m);
350
351 m->fMethod = method;
352 m->fLevel = method == kSTORED ? 0
353 : (flags & 6)/2 == 0 ? 3 // default (:N)
354 : (flags & 6)/2 == 1 ? 9 // best (:X)
355 : (flags & 6)/2 == 2 ? 2 // fast (:F)
356 : (flags & 6)/2 == 3 ? 1 // fastest (:F)
357 : 3; // unreached
358 m->fCsize = csize;
359 m->fDsize = usize;
360 m->fCRC32 = crc32;
361 m->fModTime.Set(time, kTRUE); // DOS date/time format
362 m->fGlobalLen = extlen;
363 m->fGlobal = extra;
364 m->fComment = comment;
365 m->fAttrInt = iattr;
366 m->fAttrExt = xattr;
367 m->fPosition = offset;
368
369 delete [] name;
370 delete [] comment;
371 // extra is adopted be the TZIPMember
372
374 return -1;
375
376 if (gDebug)
377 Info("ReadDirectory", "%lld %lld %s %s",
378 m->GetDecompressedSize(), m->GetCompressedSize(),
379 m->GetModTime().AsSQLString(), m->GetName());
380
381 // done, read the next magic
382 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN)) {
383 Error("ReadDirectory", "error reading %d directory bytes from %s",
385 return -1;
386 }
387 n = Get(buf, kZIP_MAGIC_LEN);
388 }
389
390 // should now see end of archive
392 Error("ReadDirectory", "wrong end header magic in %s", fArchiveName.Data());
393 return -1;
394 }
395
396 return 0;
397}
398
399////////////////////////////////////////////////////////////////////////////////
400/// Read the member header of the ZIP archive. Sets the position where
401/// the data starts in the member object. Returns -1 in case of error,
402/// 0 otherwise.
403
405{
406 // read file header to find start of data, since extra len might be
407 // different we cannot take it from the directory data
408 char buf[kENTRY_HEADER_SIZE];
409
410 // read and validate first the entry header magic
411 fFile->Seek(member->fPosition);
412 if (fFile->ReadBuffer(buf, kZIP_MAGIC_LEN) ||
414 Error("ReadMemberHeader", "wrong entry header magic in %s",
416 return -1;
417 }
418
419 // read rest of the header
421 Error("ReadMemberHeader", "error reading %d member header bytes from %s",
423 return -1;
424 }
427
428 member->fFilePosition = member->fPosition + kENTRY_HEADER_SIZE +
429 namelen + extlen;
430
431 return 0;
432}
433
434////////////////////////////////////////////////////////////////////////////////
435/// Decode the Zip64 extended extra field. If global is true, decode the
436/// extra field coming from the central directory, if false decode the
437/// extra field coming from the local file header. Returns -1 in case of
438/// error, -2 in case Zip64 extra block was not found and 0 in case of
439/// success.
440
442{
443 char *buf;
444 Int_t len;
445 Int_t ret = -2;
446
447 if (global) {
448 buf = (char *) m->fGlobal;
449 len = m->fGlobalLen;
450 } else {
451 buf = (char *) m->fLocal;
452 len = m->fLocalLen;
453 }
454
455 if (!buf || !len) {
456 return ret;
457 }
458
459 Int_t off = 0;
460 while (len > 0) {
463 if (tag == kZIP64_EXTENDED_MAGIC) {
466 m->fDsize = usize;
467 m->fCsize = csize;
468 if (size >= 24) {
470 m->fPosition = offset;
471 }
472
473 ret = 0;
474 }
477 }
478
479 return ret;
480}
481
482////////////////////////////////////////////////////////////////////////////////
483/// Find the desired member in the member array and make it the
484/// current member. Returns -1 in case member is not found, 0 otherwise.
485
487{
488 fCurMember = 0;
489
490 if (fMemberIndex > -1) {
492 if (!fCurMember)
493 return -1;
495 } else {
496 for (int i = 0; i < fMembers->GetEntriesFast(); i++) {
497 TZIPMember *m = (TZIPMember *) fMembers->At(i);
498 if (fMemberName == m->fName) {
499 fCurMember = m;
500 fMemberIndex = i;
501 break;
502 }
503 }
504 if (!fCurMember)
505 return -1;
506 }
507
509}
510
511////////////////////////////////////////////////////////////////////////////////
512/// Read a "bytes" long little-endian integer value from "buffer".
513
514UInt_t TZIPFile::Get(const void *buffer, Int_t bytes)
515{
516 UInt_t value = 0;
517
518 if (bytes > 4) {
519 Error("Get", "can not read > 4 byte integers, use Get64");
520 return value;
521 }
522#ifdef R__BYTESWAP
523 memcpy(&value, buffer, bytes);
524#else
525 const UChar_t *buf = static_cast<const unsigned char *>(buffer);
526 for (UInt_t shift = 0; bytes; shift += 8, --bytes, ++buf)
527 value += *buf << shift;
528#endif
529 return value;
530}
531
532////////////////////////////////////////////////////////////////////////////////
533/// Read a 8 byte long little-endian integer value from "buffer".
534
535ULong64_t TZIPFile::Get64(const void *buffer, Int_t bytes)
536{
537 ULong64_t value = 0;
538
539 if (bytes != 8) {
540 Error("Get64", "bytes must be 8 (asked for %d)", bytes);
541 return value;
542 }
543
544#ifdef R__BYTESWAP
545 memcpy(&value, buffer, bytes);
546#else
547 const UChar_t *buf = static_cast<const unsigned char *>(buffer);
548 for (UInt_t shift = 0; bytes; shift += 8, --bytes, ++buf)
549 value += *buf << shift;
550#endif
551 return value;
552}
553
554////////////////////////////////////////////////////////////////////////////////
555/// Pretty print ZIP archive members.
556
558{
559 if (fMembers)
560 fMembers->Print();
561}
562
563
565
566////////////////////////////////////////////////////////////////////////////////
567/// Default ctor.
568
570{
571 fLocal = 0;
572 fLocalLen = 0;
573 fGlobal = 0;
574 fGlobalLen = 0;
575 fCRC32 = 0;
576 fAttrInt = 0;
577 fAttrExt = 0;
578 fMethod = 0;
579 fLevel = 0;
580}
581
582////////////////////////////////////////////////////////////////////////////////
583/// Create ZIP member file.
584
587{
588 fLocal = 0;
589 fLocalLen = 0;
590 fGlobal = 0;
591 fGlobalLen = 0;
592 fCRC32 = 0;
593 fAttrInt = 0;
594 fAttrExt = 0;
595 fMethod = 0;
596 fLevel = 0;
597}
598
599////////////////////////////////////////////////////////////////////////////////
600/// Copy ctor.
601
603 : TArchiveMember(member)
604{
605 fLocal = 0;
606 fLocalLen = member.fLocalLen;
607 fGlobal = 0;
608 fGlobalLen = member.fGlobalLen;
609 fCRC32 = member.fCRC32;
610 fAttrInt = member.fAttrInt;
611 fAttrExt = member.fAttrExt;
612 fMethod = member.fMethod;
613 fLevel = member.fLevel;
614
615 if (member.fLocal) {
616 fLocal = new char [fLocalLen];
617 memcpy(fLocal, member.fLocal, fLocalLen);
618 }
619 if (member.fGlobal) {
620 fGlobal = new char [fGlobalLen];
621 memcpy(fGlobal, member.fGlobal, fGlobalLen);
622 }
623}
624
625////////////////////////////////////////////////////////////////////////////////
626/// Assignment operator.
627
629{
630 if (this != &rhs) {
632
633 delete [] (char*) fLocal;
634 delete [] (char*) fGlobal;
635
636 fLocal = 0;
637 fLocalLen = rhs.fLocalLen;
638 fGlobal = 0;
640 fCRC32 = rhs.fCRC32;
641 fAttrInt = rhs.fAttrInt;
642 fAttrExt = rhs.fAttrExt;
643 fMethod = rhs.fMethod;
644 fLevel = rhs.fLevel;
645
646 if (rhs.fLocal) {
647 fLocal = new char [fLocalLen];
648 memcpy(fLocal, rhs.fLocal, fLocalLen);
649 }
650 if (rhs.fGlobal) {
651 fGlobal = new char [fGlobalLen];
652 memcpy(fGlobal, rhs.fGlobal, fGlobalLen);
653 }
654 }
655 return *this;
656}
657
658////////////////////////////////////////////////////////////////////////////////
659/// Cleanup.
660
662{
663 delete [] (char*) fLocal;
664 delete [] (char*) fGlobal;
665}
666
667////////////////////////////////////////////////////////////////////////////////
668/// Pretty print basic ZIP member info.
669
671{
672 printf("%-20lld", fDsize);
673 printf(" %s %s\n", fModTime.AsSQLString(), fName.Data());
674}
int Int_t
Definition: RtypesCore.h:43
const UInt_t kMaxUInt
Definition: RtypesCore.h:100
unsigned char UChar_t
Definition: RtypesCore.h:36
unsigned int UInt_t
Definition: RtypesCore.h:44
bool Bool_t
Definition: RtypesCore.h:61
R__EXTERN Int_t gDebug
Definition: RtypesCore.h:117
long long Long64_t
Definition: RtypesCore.h:71
unsigned long long ULong64_t
Definition: RtypesCore.h:72
const Bool_t kTRUE
Definition: RtypesCore.h:89
const char Option_t
Definition: RtypesCore.h:64
#define ClassImp(name)
Definition: Rtypes.h:361
char name[80]
Definition: TGX11.cxx:109
Class describing an archive file containing multiple sub-files, like a ZIP or TAR archive.
Definition: TArchiveFile.h:24
TArchiveMember * fCurMember
Current archive member.
Definition: TArchiveFile.h:36
TString fMemberName
Sub-file name.
Definition: TArchiveFile.h:32
TString fArchiveName
Archive file name.
Definition: TArchiveFile.h:31
Int_t fMemberIndex
Index of sub-file in archive.
Definition: TArchiveFile.h:33
TObjArray * fMembers
Members in this archive.
Definition: TArchiveFile.h:35
TFile * fFile
File stream used to access the archive.
Definition: TArchiveFile.h:34
const char * GetName() const
Returns name of object.
Definition: TArchiveFile.h:86
TDatime fModTime
Modification time.
Definition: TArchiveFile.h:72
Long64_t fPosition
Byte position in archive.
Definition: TArchiveFile.h:73
Long64_t fFilePosition
Byte position in archive where member data starts.
Definition: TArchiveFile.h:74
TArchiveMember & operator=(const TArchiveMember &rhs)
Assignment operator.
TString fName
Name of member.
Definition: TArchiveFile.h:70
Long64_t fDsize
Decompressed size.
Definition: TArchiveFile.h:76
virtual void Print(Option_t *option="") const
Default print for collections, calls Print(option, 1).
const char * AsSQLString() const
Return the date & time in SQL compatible string format, like: 1997-01-15 20:16:28.
Definition: TDatime.cxx:151
A ROOT file is a suite of consecutive data records (TKey instances) with a well defined format.
Definition: TFile.h:53
virtual void Seek(Long64_t offset, ERelativeTo pos=kBeg)
Seek to a specific position in the file. Pos it either kBeg, kCur or kEnd.
Definition: TFile.cxx:2135
virtual Long64_t GetSize() const
Returns the current file size.
Definition: TFile.cxx:1259
virtual Bool_t ReadBuffer(char *buf, Int_t len)
Read a buffer from the file.
Definition: TFile.cxx:1631
Int_t GetEntriesFast() const
Definition: TObjArray.h:64
void Add(TObject *obj)
Definition: TObjArray.h:74
TObject * At(Int_t idx) const
Definition: TObjArray.h:166
virtual void Error(const char *method, const char *msgfmt,...) const
Issue error message.
Definition: TObject.cxx:891
virtual void Info(const char *method, const char *msgfmt,...) const
Issue info message.
Definition: TObject.cxx:865
const char * Data() const
Definition: TString.h:364
Describes a ZIP archive file containing multiple sub-files.
Definition: TZIPFile.h:20
Long64_t fDirPos
Central directory position.
Definition: TZIPFile.h:23
Int_t ReadMemberHeader(TZIPMember *member)
Read the member header of the ZIP archive.
Definition: TZIPFile.cxx:404
Int_t DecodeZip64ExtendedExtraField(TZIPMember *m, Bool_t global=kTRUE)
Decode the Zip64 extended extra field.
Definition: TZIPFile.cxx:441
virtual Int_t SetCurrentMember()
Find the desired member in the member array and make it the current member.
Definition: TZIPFile.cxx:486
Long64_t ReadZip64EndLocator(Long64_t pos)
Read Zip64 end of central directory locator.
Definition: TZIPFile.cxx:211
Long64_t fDirSize
Central directory size.
Definition: TZIPFile.h:24
Int_t ReadZip64EndRecord(Long64_t pos)
Read Zip64 end of central directory record.
Definition: TZIPFile.cxx:246
UInt_t Get(const void *buffer, Int_t bytes)
Read a "bytes" long little-endian integer value from "buffer".
Definition: TZIPFile.cxx:514
Int_t ReadDirectory()
Read the directory of the ZIP archive.
Definition: TZIPFile.cxx:278
Int_t ReadEndHeader(Long64_t pos)
Read the end header of the ZIP archive including the archive comment at the current file position.
Definition: TZIPFile.cxx:139
ULong64_t Get64(const void *buffer, Int_t bytes)
Read a 8 byte long little-endian integer value from "buffer".
Definition: TZIPFile.cxx:535
Long64_t FindEndHeader()
Find the end header of the ZIP archive. Returns 0 in case of error.
Definition: TZIPFile.cxx:98
Long64_t fDirOffset
Central directory offset (from the beginning of the archive)
Definition: TZIPFile.h:25
virtual Int_t OpenArchive()
Open archive and read end-header and directory.
Definition: TZIPFile.cxx:88
void Print(Option_t *option="") const
Pretty print ZIP archive members.
Definition: TZIPFile.cxx:557
TString fComment
Archive comment.
Definition: TZIPFile.h:26
@ kZIP64_EXTENDED_MAGIC_OFF
Definition: TZIPFile.h:118
@ kZIP64_EDR_DIR_SIZE_LEN
Definition: TZIPFile.h:82
@ kZIP64_EDL_DISK_LEN
Definition: TZIPFile.h:88
@ kZIP64_EXTENDED_USIZE_OFF
Definition: TZIPFile.h:120
@ kEND_HEADER_SIZE
Definition: TZIPFile.h:102
@ kDIR_DATE_OFF
Definition: TZIPFile.h:60
@ kARCHIVE_VERSION
Definition: TZIPFile.h:41
@ kZIP64_EXTENDED_CSIZE_LEN
Definition: TZIPFile.h:121
@ kZIP64_EXTENTED_CSIZE_OFF
Definition: TZIPFile.h:121
@ kZIP64_EDR_DIR_SIZE_OFF
Definition: TZIPFile.h:82
@ kDIR_CSIZE_OFF
Definition: TZIPFile.h:62
@ kDIR_HEADER_MAGIC
Definition: TZIPFile.h:44
@ kEND_DIR_OFFSET_OFF
Definition: TZIPFile.h:100
@ kEND_DIR_OFFSET_LEN
Definition: TZIPFile.h:100
@ kDIR_CRC32_LEN
Definition: TZIPFile.h:61
@ kZIP64_EXTENDED_USIZE_LEN
Definition: TZIPFile.h:120
@ kEND_DISK_LEN
Definition: TZIPFile.h:95
@ kZIP64_EDL_TOTAL_DISK_OFF
Definition: TZIPFile.h:90
@ kZIP64_EDL_REC_OFFSET_OFF
Definition: TZIPFile.h:89
@ kDIR_INT_ATTR_OFF
Definition: TZIPFile.h:68
@ kENTRY_NAMELEN_OFF
Definition: TZIPFile.h:113
@ kDEFLATED
Stored using deflate.
Definition: TZIPFile.h:128
@ kEND_COMMENTLEN_LEN
Definition: TZIPFile.h:101
@ kDIR_DISK_START_LEN
Definition: TZIPFile.h:67
@ kDIR_NAMELEN_LEN
Definition: TZIPFile.h:64
@ kDIR_ENTRY_POS_OFF
Definition: TZIPFile.h:70
@ kDIR_COMMENTLEN_OFF
Definition: TZIPFile.h:66
@ kZIP64_EXTENDED_HDR_OFFSET_LEN
Definition: TZIPFile.h:122
@ kEND_DISK_HDRS_OFF
Definition: TZIPFile.h:97
@ kZIP64_EXTENDED_SIZE_LEN
Definition: TZIPFile.h:119
@ kSTORED
Stored as is.
Definition: TZIPFile.h:127
@ kEND_DIR_DISK_OFF
Definition: TZIPFile.h:96
@ kDIR_CSIZE_LEN
Definition: TZIPFile.h:62
@ kDIR_INT_ATTR_LEN
Definition: TZIPFile.h:68
@ kDIR_VREQD_LEN
Definition: TZIPFile.h:57
@ kDIR_EXT_ATTR_LEN
Definition: TZIPFile.h:69
@ kZIP64_EXTENDED_MAGIC
Zip64 Extended Information Extra Field.
Definition: TZIPFile.h:49
@ kZIP64_EDL_REC_OFFSET_LEN
Definition: TZIPFile.h:89
@ kEND_COMMENTLEN_OFF
Definition: TZIPFile.h:101
@ kZIP64_EDR_HEADER_SIZE
Definition: TZIPFile.h:84
@ kENTRY_EXTRALEN_OFF
Definition: TZIPFile.h:114
@ kZIP64_EDL_TOTAL_DISK_LEN
Definition: TZIPFile.h:90
@ kZIP64_EDR_DIR_OFFSET_OFF
Definition: TZIPFile.h:83
@ kEND_DISK_HDRS_LEN
Definition: TZIPFile.h:97
@ kZIP64_EDR_HEADER_MAGIC
Definition: TZIPFile.h:47
@ kZIP64_EDL_HEADER_SIZE
Definition: TZIPFile.h:91
@ kZIP64_EDR_DIR_OFFSET_LEN
Definition: TZIPFile.h:83
@ kMAX_VAR_LEN
Max variable-width field length.
Definition: TZIPFile.h:51
@ kDIR_HEADER_SIZE
Definition: TZIPFile.h:71
@ kDIR_ENTRY_POS_LEN
Definition: TZIPFile.h:70
@ kZIP64_EDL_HEADER_MAGIC
Definition: TZIPFile.h:48
@ kENTRY_HEADER_MAGIC
Definition: TZIPFile.h:45
@ kDIR_DATE_LEN
Definition: TZIPFile.h:60
@ kDIR_METHOD_LEN
Definition: TZIPFile.h:59
@ kDIR_EXTRALEN_OFF
Definition: TZIPFile.h:65
@ kDIR_CRC32_OFF
Definition: TZIPFile.h:61
@ kEND_TOTAL_HDRS_LEN
Definition: TZIPFile.h:98
@ kDIR_EXT_ATTR_OFF
Definition: TZIPFile.h:69
@ kENTRY_NAMELEN_LEN
Definition: TZIPFile.h:113
@ kZIP64_EXTENDED_SIZE_OFF
Definition: TZIPFile.h:119
@ kEND_DISK_OFF
Definition: TZIPFile.h:95
@ kZIP64_EDL_DISK_OFF
Definition: TZIPFile.h:88
@ kENTRY_HEADER_SIZE
Definition: TZIPFile.h:115
@ kZIP_MAGIC_LEN
Length of magic's.
Definition: TZIPFile.h:50
@ kEND_HEADER_MAGIC
Definition: TZIPFile.h:46
@ kDIR_COMMENTLEN_LEN
Definition: TZIPFile.h:66
@ kDIR_VREQD_OFF
Definition: TZIPFile.h:57
@ kEND_DIR_SIZE_OFF
Definition: TZIPFile.h:99
@ kZIP64_EXTENDED_MAGIC_LEN
Definition: TZIPFile.h:118
@ kEND_TOTAL_HDRS_OFF
Definition: TZIPFile.h:98
@ kEND_DIR_SIZE_LEN
Definition: TZIPFile.h:99
@ kDIR_FLAG_LEN
Definition: TZIPFile.h:58
@ kDIR_DISK_START_OFF
Definition: TZIPFile.h:67
@ kEND_DIR_DISK_LEN
Definition: TZIPFile.h:96
@ kDIR_NAMELEN_OFF
Definition: TZIPFile.h:64
@ kDIR_USIZE_LEN
Definition: TZIPFile.h:63
@ kDIR_MAGIC_OFF
Definition: TZIPFile.h:55
@ kENTRY_EXTRALEN_LEN
Definition: TZIPFile.h:114
@ kDIR_EXTRALEN_LEN
Definition: TZIPFile.h:65
@ kDIR_FLAG_OFF
Definition: TZIPFile.h:58
@ kDIR_USIZE_OFF
Definition: TZIPFile.h:63
@ kZIP64_EXTENDED_HDR_OFFSET_OFF
Definition: TZIPFile.h:122
@ kDIR_METHOD_OFF
Definition: TZIPFile.h:59
TZIPFile()
Default ctor.
Definition: TZIPFile.cxx:65
A ZIP archive consists of files compressed with the popular ZLIB compression algorithm; this class re...
Definition: TZIPFile.h:156
UInt_t fLevel
Compression level.
Definition: TZIPFile.h:169
void Print(Option_t *option="") const
Pretty print basic ZIP member info.
Definition: TZIPFile.cxx:670
UInt_t fGlobalLen
Length of extra directory data.
Definition: TZIPFile.h:164
UInt_t fCRC32
CRC-32 for all decompressed data.
Definition: TZIPFile.h:165
UInt_t fAttrInt
Internal file attributes.
Definition: TZIPFile.h:166
UInt_t fLocalLen
Length of extra file header data.
Definition: TZIPFile.h:162
virtual ~TZIPMember()
Cleanup.
Definition: TZIPFile.cxx:661
TZIPMember()
Default ctor.
Definition: TZIPFile.cxx:569
UInt_t fMethod
Compression type.
Definition: TZIPFile.h:168
UInt_t fAttrExt
External file attributes.
Definition: TZIPFile.h:167
TZIPMember & operator=(const TZIPMember &rhs)
Assignment operator.
Definition: TZIPFile.cxx:628
void * fGlobal
Extra directory data.
Definition: TZIPFile.h:163
void * fLocal
Extra file header data.
Definition: TZIPFile.h:161
const Int_t n
Definition: legend1.C:16
static const std::string comment("comment")
Short_t Min(Short_t a, Short_t b)
Definition: TMathBase.h:180
Definition: file.py:1
auto * m
Definition: textangle.C:8