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extract.c
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extract.c
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/*
Copyright (c) 1990-2009 Info-ZIP. All rights reserved.
See the accompanying file LICENSE, version 2009-Jan-02 or later
(the contents of which are also included in unzip.h) for terms of use.
If, for some reason, all these files are missing, the Info-ZIP license
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html
*/
/*---------------------------------------------------------------------------
extract.c
This file contains the high-level routines ("driver routines") for extrac-
ting and testing zipfile members. It calls the low-level routines in files
explode.c, inflate.c, unreduce.c and unshrink.c.
Contains: extract_or_test_files()
store_info()
find_compr_idx()
extract_or_test_entrylist()
extract_or_test_member()
TestExtraField()
test_compr_eb()
memextract()
memflush()
extract_izvms_block() (VMS or VMS_TEXT_CONV)
set_deferred_symlink() (SYMLINKS only)
fnfilter()
dircomp() (SET_DIR_ATTRIB only)
UZbunzip2() (USE_BZIP2 only)
UZlzfse_decode() (USE_LZFSE only)
---------------------------------------------------------------------------*/
#define __EXTRACT_C /* identifies this source module */
#define UNZIP_INTERNAL
#include "unzip.h"
#ifdef WINDLL
# ifdef POCKET_UNZIP
# include "wince/intrface.h"
# else
# include "windll/windll.h"
# endif
#endif
#include "crc32.h"
#include "crypt.h"
#define GRRDUMP(buf,len) { \
int i, j; \
\
for (j = 0; j < (len)/16; ++j) { \
printf(" "); \
for (i = 0; i < 16; ++i) \
printf("%02x ", (uch)(buf)[i+(j<<4)]); \
printf("\n "); \
for (i = 0; i < 16; ++i) { \
char c = (char)(buf)[i+(j<<4)]; \
\
if (c == '\n') \
printf("\\n "); \
else if (c == '\r') \
printf("\\r "); \
else \
printf(" %c ", c); \
} \
printf("\n"); \
} \
if ((len) % 16) { \
printf(" "); \
for (i = j<<4; i < (len); ++i) \
printf("%02x ", (uch)(buf)[i]); \
printf("\n "); \
for (i = j<<4; i < (len); ++i) { \
char c = (char)(buf)[i]; \
\
if (c == '\n') \
printf("\\n "); \
else if (c == '\r') \
printf("\\r "); \
else \
printf(" %c ", c); \
} \
printf("\n"); \
} \
}
static int store_info OF((__GPRO));
#ifdef SET_DIR_ATTRIB
static int extract_or_test_entrylist OF((__GPRO__ unsigned numchunk,
ulg *pfilnum, ulg *pnum_bad_pwd, zoff_t *pold_extra_bytes,
unsigned *pnum_dirs, direntry **pdirlist,
int error_in_archive));
#else
static int extract_or_test_entrylist OF((__GPRO__ unsigned numchunk,
ulg *pfilnum, ulg *pnum_bad_pwd, zoff_t *pold_extra_bytes,
int error_in_archive));
#endif
static int extract_or_test_member OF((__GPRO));
#ifndef SFX
static int TestExtraField OF((__GPRO__ uch *ef, unsigned ef_len));
static int test_compr_eb OF((__GPRO__ uch *eb, unsigned eb_size,
unsigned compr_offset,
int (*test_uc_ebdata)(__GPRO__ uch *eb, unsigned eb_size,
uch *eb_ucptr, ulg eb_ucsize)));
#endif
#if (defined(VMS) || defined(VMS_TEXT_CONV))
static void decompress_bits OF((uch *outptr, unsigned needlen,
ZCONST uch *bitptr));
#endif
#ifdef SYMLINKS
static void set_deferred_symlink OF((__GPRO__ slinkentry *slnk_entry));
#endif
#ifdef SET_DIR_ATTRIB
static int Cdecl dircomp OF((ZCONST zvoid *a, ZCONST zvoid *b));
#endif
/*******************************/
/* Strings used in extract.c */
/*******************************/
static ZCONST char Far VersionMsg[] =
" skipping: %-22s need %s compat. v%u.%u (can do v%u.%u)\n";
static ZCONST char Far ComprMsgNum[] =
" skipping: %-22s unsupported compression method %u\n";
#ifndef SFX
static ZCONST char Far ComprMsgName[] =
" skipping: %-22s `%s' method not supported\n";
static ZCONST char Far CmprNone[] = "store";
static ZCONST char Far CmprShrink[] = "shrink";
static ZCONST char Far CmprReduce[] = "reduce";
static ZCONST char Far CmprImplode[] = "implode";
static ZCONST char Far CmprTokenize[] = "tokenize";
static ZCONST char Far CmprDeflate[] = "deflate";
static ZCONST char Far CmprDeflat64[] = "deflate64";
static ZCONST char Far CmprDCLImplode[] = "DCL implode";
static ZCONST char Far CmprBzip[] = "bzip2";
static ZCONST char Far CmprLZMA[] = "LZMA";
static ZCONST char Far CmprIBMTerse[] = "IBM/Terse";
static ZCONST char Far CmprIBMLZ77[] = "IBM LZ77";
static ZCONST char Far CmprWavPack[] = "WavPack";
static ZCONST char Far CmprPPMd[] = "PPMd";
static ZCONST char Far CmprLZFSE[] = "LZFSE";
static ZCONST char Far *ComprNames[NUM_METHODS] = {
CmprNone, CmprShrink, CmprReduce, CmprReduce, CmprReduce, CmprReduce,
CmprImplode, CmprTokenize, CmprDeflate, CmprDeflat64, CmprDCLImplode,
CmprBzip, CmprLZMA, CmprIBMTerse, CmprIBMLZ77, CmprWavPack, CmprPPMd,
CmprLZFSE
};
static ZCONST unsigned ComprIDs[NUM_METHODS] = {
STORED, SHRUNK, REDUCED1, REDUCED2, REDUCED3, REDUCED4,
IMPLODED, TOKENIZED, DEFLATED, ENHDEFLATED, DCLIMPLODED,
BZIPPED, LZMAED, IBMTERSED, IBMLZ77ED, WAVPACKED, PPMDED,
LZFSED
};
#endif /* !SFX */
static ZCONST char Far FilNamMsg[] =
"%s: bad filename length (%s)\n";
#ifndef SFX
static ZCONST char Far WarnNoMemCFName[] =
"%s: warning, no memory for comparison with local header\n";
static ZCONST char Far LvsCFNamMsg[] =
"%s: mismatching \"local\" filename (%s),\n\
continuing with \"central\" filename version\n";
#endif /* !SFX */
#if (!defined(SFX) && defined(UNICODE_SUPPORT))
static ZCONST char Far GP11FlagsDiffer[] =
"file #%lu (%s):\n\
mismatch between local and central GPF bit 11 (\"UTF-8\"),\n\
continuing with central flag (IsUTF8 = %d)\n";
#endif /* !SFX && UNICODE_SUPPORT */
static ZCONST char Far WrnStorUCSizCSizDiff[] =
"%s: ucsize %s <> csize %s for STORED entry\n\
continuing with \"compressed\" size value\n";
static ZCONST char Far ExtFieldMsg[] =
"%s: bad extra field length (%s)\n";
static ZCONST char Far OffsetMsg[] =
"file #%lu: bad zipfile offset (%s): %ld\n";
static ZCONST char Far ExtractMsg[] =
"%8sing: %-22s %s%s";
#ifndef SFX
static ZCONST char Far LengthMsg[] =
"%s %s: %s bytes required to uncompress to %s bytes;\n %s\
supposed to require %s bytes%s%s%s\n";
#endif
static ZCONST char Far BadFileCommLength[] = "%s: bad file comment length\n";
static ZCONST char Far LocalHdrSig[] = "local header sig";
static ZCONST char Far BadLocalHdr[] = "file #%lu: bad local header\n";
static ZCONST char Far AttemptRecompensate[] =
" (attempting to re-compensate)\n";
#ifndef SFX
static ZCONST char Far BackslashPathSep[] =
"warning: %s appears to use backslashes as path separators\n";
#endif
static ZCONST char Far AbsolutePathWarning[] =
"warning: stripped absolute path spec from %s\n";
static ZCONST char Far SkipVolumeLabel[] =
" skipping: %-22s %svolume label\n";
#ifdef SET_DIR_ATTRIB /* messages of code for setting directory attributes */
static ZCONST char Far DirlistEntryNoMem[] =
"warning: cannot alloc memory for dir times/permissions/UID/GID\n";
static ZCONST char Far DirlistSortNoMem[] =
"warning: cannot alloc memory to sort dir times/perms/etc.\n";
static ZCONST char Far DirlistSetAttrFailed[] =
"warning: set times/attribs failed for %s\n";
static ZCONST char Far DirlistFailAttrSum[] =
" failed setting times/attribs for %lu dir entries";
#endif
#ifdef SYMLINKS /* messages of the deferred symlinks handler */
static ZCONST char Far SymLnkWarnNoMem[] =
"warning: deferred symlink (%s) failed:\n\
out of memory\n";
static ZCONST char Far SymLnkWarnInvalid[] =
"warning: deferred symlink (%s) failed:\n\
invalid placeholder file\n";
static ZCONST char Far SymLnkDeferred[] =
"finishing deferred symbolic links:\n";
static ZCONST char Far SymLnkFinish[] =
" %-22s -> %s\n";
#endif
#ifndef WINDLL
static ZCONST char Far ReplaceQuery[] =
# ifdef VMS
"new version of %s? [y]es, [n]o, [A]ll, [N]one, [r]ename: ";
# else
"replace %s? [y]es, [n]o, [A]ll, [N]one, [r]ename: ";
# endif
static ZCONST char Far AssumeNone[] =
" NULL\n(EOF or read error, treating as \"[N]one\" ...)\n";
static ZCONST char Far NewNameQuery[] = "new name: ";
static ZCONST char Far InvalidResponse[] =
"error: invalid response [%s]\n";
#endif /* !WINDLL */
static ZCONST char Far ErrorInArchive[] =
"At least one %serror was detected in %s.\n";
static ZCONST char Far ZeroFilesTested[] =
"Caution: zero files tested in %s.\n";
#ifndef VMS
static ZCONST char Far VMSFormatQuery[] =
"\n%s: stored in VMS format. Extract anyway? (y/n) ";
#endif
#if CRYPT
static ZCONST char Far SkipCannotGetPasswd[] =
" skipping: %-22s unable to get password\n";
static ZCONST char Far SkipIncorrectPasswd[] =
" skipping: %-22s incorrect password\n";
static ZCONST char Far FilesSkipBadPasswd[] =
"%lu file%s skipped because of incorrect password.\n";
static ZCONST char Far MaybeBadPasswd[] =
" (may instead be incorrect password)\n";
#else
static ZCONST char Far SkipEncrypted[] =
" skipping: %-22s encrypted (not supported)\n";
#endif
static ZCONST char Far NoErrInCompData[] =
"No errors detected in compressed data of %s.\n";
static ZCONST char Far NoErrInTestedFiles[] =
"No errors detected in %s for the %lu file%s tested.\n";
static ZCONST char Far FilesSkipped[] =
"%lu file%s skipped because of unsupported compression or encoding.\n";
static ZCONST char Far ErrUnzipFile[] = " error: %s%s %s\n";
static ZCONST char Far ErrUnzipNoFile[] = "\n error: %s%s\n";
static ZCONST char Far NotEnoughMem[] = "not enough memory to ";
static ZCONST char Far InvalidComprData[] = "invalid compressed data to ";
static ZCONST char Far Inflate[] = "inflate";
#ifdef USE_BZIP2
static ZCONST char Far BUnzip[] = "bunzip";
#endif
#ifdef USE_LZFSE
static ZCONST char Far Lzfse[] = "lzfse";
#endif
#ifndef SFX
static ZCONST char Far Explode[] = "explode";
#ifndef LZW_CLEAN
static ZCONST char Far Unshrink[] = "unshrink";
#endif
#endif
#if (!defined(DELETE_IF_FULL) || !defined(HAVE_UNLINK))
static ZCONST char Far FileTruncated[] =
"warning: %s is probably truncated\n";
#endif
static ZCONST char Far FileUnknownCompMethod[] =
"%s: unknown compression method\n";
static ZCONST char Far BadCRC[] = " bad CRC %08lx (should be %08lx)\n";
/* TruncEAs[] also used in OS/2 mapname(), close_outfile() */
char ZCONST Far TruncEAs[] = " compressed EA data missing (%d bytes)%s";
char ZCONST Far TruncNTSD[] =
" compressed WinNT security data missing (%d bytes)%s";
#ifndef SFX
static ZCONST char Far InconsistEFlength[] = "bad extra-field entry:\n \
EF block length (%u bytes) exceeds remaining EF data (%u bytes)\n";
static ZCONST char Far InvalidComprDataEAs[] =
" invalid compressed data for EAs\n";
# if (defined(WIN32) && defined(NTSD_EAS))
static ZCONST char Far InvalidSecurityEAs[] =
" EAs fail security check\n";
# endif
static ZCONST char Far UnsuppNTSDVersEAs[] =
" unsupported NTSD EAs version %d\n";
static ZCONST char Far BadCRC_EAs[] = " bad CRC for extended attributes\n";
static ZCONST char Far UnknComprMethodEAs[] =
" unknown compression method for EAs (%u)\n";
static ZCONST char Far NotEnoughMemEAs[] =
" out of memory while inflating EAs\n";
static ZCONST char Far UnknErrorEAs[] =
" unknown error on extended attributes\n";
#endif /* !SFX */
static ZCONST char Far UnsupportedExtraField[] =
"\nerror: unsupported extra-field compression type (%u)--skipping\n";
static ZCONST char Far BadExtraFieldCRC[] =
"error [%s]: bad extra-field CRC %08lx (should be %08lx)\n";
/**************************************/
/* Function extract_or_test_files() */
/**************************************/
int extract_or_test_files(__G) /* return PK-type error code */
__GDEF
{
unsigned i, j;
zoff_t cd_bufstart;
uch *cd_inptr;
int cd_incnt;
ulg filnum=0L, blknum=0L;
int reached_end;
#ifndef SFX
int no_endsig_found;
#endif
int error, error_in_archive=PK_COOL;
int *fn_matched=NULL, *xn_matched=NULL;
zucn_t members_processed;
ulg num_skipped=0L, num_bad_pwd=0L;
zoff_t old_extra_bytes = 0L;
#ifdef SET_DIR_ATTRIB
unsigned num_dirs=0;
direntry *dirlist=(direntry *)NULL, **sorted_dirlist=(direntry **)NULL;
#endif
/*
* First, two general initializations are applied. These have been moved
* here from process_zipfiles() because they are only needed for accessing
* and/or extracting the data content of the zip archive.
*/
/* a) initialize the CRC table pointer (once) */
if (CRC_32_TAB == NULL) {
if ((CRC_32_TAB = get_crc_table()) == NULL) {
return PK_MEM;
}
}
#if (!defined(SFX) || defined(SFX_EXDIR))
/* b) check out if specified extraction root directory exists */
if (uO.exdir != (char *)NULL && G.extract_flag) {
G.create_dirs = !uO.fflag;
if ((error = checkdir(__G__ uO.exdir, ROOT)) > MPN_INF_SKIP) {
/* out of memory, or file in way */
return (error == MPN_NOMEM ? PK_MEM : PK_ERR);
}
}
#endif /* !SFX || SFX_EXDIR */
/*---------------------------------------------------------------------------
The basic idea of this function is as follows. Since the central di-
rectory lies at the end of the zipfile and the member files lie at the
beginning or middle or wherever, it is not very desirable to simply
read a central directory entry, jump to the member and extract it, and
then jump back to the central directory. In the case of a large zipfile
this would lead to a whole lot of disk-grinding, especially if each mem-
ber file is small. Instead, we read from the central directory the per-
tinent information for a block of files, then go extract/test the whole
block. Thus this routine contains two small(er) loops within a very
large outer loop: the first of the small ones reads a block of files
from the central directory; the second extracts or tests each file; and
the outer one loops over blocks. There's some file-pointer positioning
stuff in between, but that's about it. Btw, it's because of this jump-
ing around that we can afford to be lenient if an error occurs in one of
the member files: we should still be able to go find the other members,
since we know the offset of each from the beginning of the zipfile.
---------------------------------------------------------------------------*/
G.pInfo = G.info;
#if CRYPT
G.newzip = TRUE;
#endif
#ifndef SFX
G.reported_backslash = FALSE;
#endif
/* malloc space for check on unmatched filespecs (OK if one or both NULL) */
if (G.filespecs > 0 &&
(fn_matched=(int *)malloc(G.filespecs*sizeof(int))) != (int *)NULL)
for (i = 0; i < G.filespecs; ++i)
fn_matched[i] = FALSE;
if (G.xfilespecs > 0 &&
(xn_matched=(int *)malloc(G.xfilespecs*sizeof(int))) != (int *)NULL)
for (i = 0; i < G.xfilespecs; ++i)
xn_matched[i] = FALSE;
/*---------------------------------------------------------------------------
Begin main loop over blocks of member files. We know the entire central
directory is on this disk: we would not have any of this information un-
less the end-of-central-directory record was on this disk, and we would
not have gotten to this routine unless this is also the disk on which
the central directory starts. In practice, this had better be the ONLY
disk in the archive, but we'll add multi-disk support soon.
---------------------------------------------------------------------------*/
members_processed = 0;
#ifndef SFX
no_endsig_found = FALSE;
#endif
reached_end = FALSE;
while (!reached_end) {
j = 0;
#ifdef AMIGA
memzero(G.filenotes, DIR_BLKSIZ * sizeof(char *));
#endif
/*
* Loop through files in central directory, storing offsets, file
* attributes, case-conversion and text-conversion flags until block
* size is reached.
*/
while ((j < DIR_BLKSIZ)) {
G.pInfo = &G.info[j];
if (readbuf(__G__ G.sig, 4) == 0) {
error_in_archive = PK_EOF;
reached_end = TRUE; /* ...so no more left to do */
break;
}
if (memcmp(G.sig, central_hdr_sig, 4)) { /* is it a new entry? */
/* no new central directory entry
* -> is the number of processed entries compatible with the
* number of entries as stored in the end_central record?
*/
if ((members_processed
& (G.ecrec.have_ecr64 ? MASK_ZUCN64 : MASK_ZUCN16))
== G.ecrec.total_entries_central_dir) {
#ifndef SFX
/* yes, so look if we ARE back at the end_central record
*/
no_endsig_found =
( (memcmp(G.sig,
(G.ecrec.have_ecr64 ?
end_central64_sig : end_central_sig),
4) != 0)
&& (!G.ecrec.is_zip64_archive)
&& (memcmp(G.sig, end_central_sig, 4) != 0)
);
#endif /* !SFX */
} else {
/* no; we have found an error in the central directory
* -> report it and stop searching for more Zip entries
*/
Info(slide, 0x401, ((char *)slide,
LoadFarString(CentSigMsg), j + blknum*DIR_BLKSIZ + 1));
Info(slide, 0x401, ((char *)slide,
LoadFarString(ReportMsg)));
error_in_archive = PK_BADERR;
}
reached_end = TRUE; /* ...so no more left to do */
break;
}
/* process_cdir_file_hdr() sets pInfo->hostnum, pInfo->lcflag */
if ((error = process_cdir_file_hdr(__G)) != PK_COOL) {
error_in_archive = error; /* only PK_EOF defined */
reached_end = TRUE; /* ...so no more left to do */
break;
}
if ((error = do_string(__G__ G.crec.filename_length, DS_FN)) !=
PK_COOL)
{
if (error > error_in_archive)
error_in_archive = error;
if (error > PK_WARN) { /* fatal: no more left to do */
Info(slide, 0x401, ((char *)slide,
LoadFarString(FilNamMsg),
FnFilter1(G.filename), "central"));
reached_end = TRUE;
break;
}
}
if ((error = do_string(__G__ G.crec.extra_field_length,
EXTRA_FIELD)) != 0)
{
if (error > error_in_archive)
error_in_archive = error;
if (error > PK_WARN) { /* fatal */
Info(slide, 0x401, ((char *)slide,
LoadFarString(ExtFieldMsg),
FnFilter1(G.filename), "central"));
reached_end = TRUE;
break;
}
}
#ifdef AMIGA
G.filenote_slot = j;
if ((error = do_string(__G__ G.crec.file_comment_length,
uO.N_flag ? FILENOTE : SKIP)) != PK_COOL)
#else
if ((error = do_string(__G__ G.crec.file_comment_length, SKIP))
!= PK_COOL)
#endif
{
if (error > error_in_archive)
error_in_archive = error;
if (error > PK_WARN) { /* fatal */
Info(slide, 0x421, ((char *)slide,
LoadFarString(BadFileCommLength),
FnFilter1(G.filename)));
reached_end = TRUE;
break;
}
}
if (G.process_all_files) {
if (store_info(__G))
++j; /* file is OK; info[] stored; continue with next */
else
++num_skipped;
} else {
int do_this_file;
if (G.filespecs == 0)
do_this_file = TRUE;
else { /* check if this entry matches an `include' argument */
do_this_file = FALSE;
for (i = 0; i < G.filespecs; i++)
if (match(G.filename, G.pfnames[i], uO.C_flag WISEP)) {
do_this_file = TRUE; /* ^-- ignore case or not? */
if (fn_matched)
fn_matched[i] = TRUE;
break; /* found match, so stop looping */
}
}
if (do_this_file) { /* check if this is an excluded file */
for (i = 0; i < G.xfilespecs; i++)
if (match(G.filename, G.pxnames[i], uO.C_flag WISEP)) {
do_this_file = FALSE; /* ^-- ignore case or not? */
if (xn_matched)
xn_matched[i] = TRUE;
break;
}
}
if (do_this_file) {
if (store_info(__G))
++j; /* file is OK */
else
++num_skipped; /* unsupp. compression or encryption */
}
} /* end if (process_all_files) */
members_processed++;
} /* end while-loop (adding files to current block) */
/* save position in central directory so can come back later */
cd_bufstart = G.cur_zipfile_bufstart;
cd_inptr = G.inptr;
cd_incnt = G.incnt;
/*-----------------------------------------------------------------------
Second loop: process files in current block, extracting or testing
each one.
-----------------------------------------------------------------------*/
error = extract_or_test_entrylist(__G__ j,
&filnum, &num_bad_pwd, &old_extra_bytes,
#ifdef SET_DIR_ATTRIB
&num_dirs, &dirlist,
#endif
error_in_archive);
if (error != PK_COOL) {
if (error > error_in_archive)
error_in_archive = error;
/* ...and keep going (unless disk full or user break) */
if (G.disk_full > 1 || error_in_archive == IZ_CTRLC) {
/* clear reached_end to signal premature stop ... */
reached_end = FALSE;
/* ... and cancel scanning the central directory */
break;
}
}
/*
* Jump back to where we were in the central directory, then go and do
* the next batch of files.
*/
#ifdef USE_STRM_INPUT
zfseeko(G.zipfd, cd_bufstart, SEEK_SET);
G.cur_zipfile_bufstart = zftello(G.zipfd);
#else /* !USE_STRM_INPUT */
G.cur_zipfile_bufstart =
zlseek(G.zipfd, cd_bufstart, SEEK_SET);
#endif /* ?USE_STRM_INPUT */
read(G.zipfd, (char *)G.inbuf, INBUFSIZ); /* been here before... */
G.inptr = cd_inptr;
G.incnt = cd_incnt;
++blknum;
#ifdef TEST
printf("\ncd_bufstart = %ld (%.8lXh)\n", cd_bufstart, cd_bufstart);
printf("cur_zipfile_bufstart = %ld (%.8lXh)\n", cur_zipfile_bufstart,
cur_zipfile_bufstart);
printf("inptr-inbuf = %d\n", G.inptr-G.inbuf);
printf("incnt = %d\n\n", G.incnt);
#endif
} /* end while-loop (blocks of files in central directory) */
/*---------------------------------------------------------------------------
Process the list of deferred symlink extractions and finish up
the symbolic links.
---------------------------------------------------------------------------*/
#ifdef SYMLINKS
if (G.slink_last != NULL) {
if (QCOND2)
Info(slide, 0, ((char *)slide, LoadFarString(SymLnkDeferred)));
while (G.slink_head != NULL) {
set_deferred_symlink(__G__ G.slink_head);
/* remove the processed entry from the chain and free its memory */
G.slink_last = G.slink_head;
G.slink_head = G.slink_last->next;
free(G.slink_last);
}
G.slink_last = NULL;
}
#endif /* SYMLINKS */
/*---------------------------------------------------------------------------
Go back through saved list of directories, sort and set times/perms/UIDs
and GIDs from the deepest level on up.
---------------------------------------------------------------------------*/
#ifdef SET_DIR_ATTRIB
if (num_dirs > 0) {
sorted_dirlist = (direntry **)malloc(num_dirs*sizeof(direntry *));
if (sorted_dirlist == (direntry **)NULL) {
Info(slide, 0x401, ((char *)slide,
LoadFarString(DirlistSortNoMem)));
while (dirlist != (direntry *)NULL) {
direntry *d = dirlist;
dirlist = dirlist->next;
free(d);
}
} else {
ulg ndirs_fail = 0;
if (num_dirs == 1)
sorted_dirlist[0] = dirlist;
else {
for (i = 0; i < num_dirs; ++i) {
sorted_dirlist[i] = dirlist;
dirlist = dirlist->next;
}
qsort((char *)sorted_dirlist, num_dirs, sizeof(direntry *),
dircomp);
}
Trace((stderr, "setting directory times/perms/attributes\n"));
for (i = 0; i < num_dirs; ++i) {
direntry *d = sorted_dirlist[i];
Trace((stderr, "dir = %s\n", d->fn));
if ((error = set_direc_attribs(__G__ d)) != PK_OK) {
ndirs_fail++;
Info(slide, 0x201, ((char *)slide,
LoadFarString(DirlistSetAttrFailed), d->fn));
if (!error_in_archive)
error_in_archive = error;
}
free(d);
}
free(sorted_dirlist);
if (!uO.tflag && QCOND2) {
if (ndirs_fail > 0)
Info(slide, 0, ((char *)slide,
LoadFarString(DirlistFailAttrSum), ndirs_fail));
}
}
}
#endif /* SET_DIR_ATTRIB */
/*---------------------------------------------------------------------------
Check for unmatched filespecs on command line and print warning if any
found. Free allocated memory. (But suppress check when central dir
scan was interrupted prematurely.)
---------------------------------------------------------------------------*/
if (fn_matched) {
if (reached_end) for (i = 0; i < G.filespecs; ++i)
if (!fn_matched[i]) {
#ifdef DLL
if (!G.redirect_data && !G.redirect_text)
Info(slide, 0x401, ((char *)slide,
LoadFarString(FilenameNotMatched), G.pfnames[i]));
else
setFileNotFound(__G);
#else
Info(slide, 1, ((char *)slide,
LoadFarString(FilenameNotMatched), G.pfnames[i]));
#endif
if (error_in_archive <= PK_WARN)
error_in_archive = PK_FIND; /* some files not found */
}
free((zvoid *)fn_matched);
}
if (xn_matched) {
if (reached_end) for (i = 0; i < G.xfilespecs; ++i)
if (!xn_matched[i])
Info(slide, 0x401, ((char *)slide,
LoadFarString(ExclFilenameNotMatched), G.pxnames[i]));
free((zvoid *)xn_matched);
}
/*---------------------------------------------------------------------------
Now, all locally allocated memory has been released. When the central
directory processing has been interrupted prematurely, it is safe to
return immediately. All completeness checks and summary messages are
skipped in this case.
---------------------------------------------------------------------------*/
if (!reached_end)
return error_in_archive;
/*---------------------------------------------------------------------------
Double-check that we're back at the end-of-central-directory record, and
print quick summary of results, if we were just testing the archive. We
send the summary to stdout so that people doing the testing in the back-
ground and redirecting to a file can just do a "tail" on the output file.
---------------------------------------------------------------------------*/
#ifndef SFX
if (no_endsig_found) { /* just to make sure */
Info(slide, 0x401, ((char *)slide, LoadFarString(EndSigMsg)));
Info(slide, 0x401, ((char *)slide, LoadFarString(ReportMsg)));
if (!error_in_archive) /* don't overwrite stronger error */
error_in_archive = PK_WARN;
}
#endif /* !SFX */
if (uO.tflag) {
ulg num = filnum - num_bad_pwd;
if (uO.qflag < 2) { /* GRR 930710: was (uO.qflag == 1) */
if (error_in_archive)
Info(slide, 0, ((char *)slide, LoadFarString(ErrorInArchive),
(error_in_archive == PK_WARN)? "warning-" : "", G.zipfn));
else if (num == 0L)
Info(slide, 0, ((char *)slide, LoadFarString(ZeroFilesTested),
G.zipfn));
else if (G.process_all_files && (num_skipped+num_bad_pwd == 0L))
Info(slide, 0, ((char *)slide, LoadFarString(NoErrInCompData),
G.zipfn));
else
Info(slide, 0, ((char *)slide, LoadFarString(NoErrInTestedFiles)
, G.zipfn, num, (num==1L)? "":"s"));
if (num_skipped > 0L)
Info(slide, 0, ((char *)slide, LoadFarString(FilesSkipped),
num_skipped, (num_skipped==1L)? "":"s"));
#if CRYPT
if (num_bad_pwd > 0L)
Info(slide, 0, ((char *)slide, LoadFarString(FilesSkipBadPasswd)
, num_bad_pwd, (num_bad_pwd==1L)? "":"s"));
#endif /* CRYPT */
}
}
/* give warning if files not tested or extracted (first condition can still
* happen if zipfile is empty and no files specified on command line) */
if ((filnum == 0) && error_in_archive <= PK_WARN) {
if (num_skipped > 0L)
error_in_archive = IZ_UNSUP; /* unsupport. compression/encryption */
else
error_in_archive = PK_FIND; /* no files found at all */
}
#if CRYPT
else if ((filnum == num_bad_pwd) && error_in_archive <= PK_WARN)
error_in_archive = IZ_BADPWD; /* bad passwd => all files skipped */
#endif
else if ((num_skipped > 0L) && error_in_archive <= PK_WARN)
error_in_archive = IZ_UNSUP; /* was PK_WARN; Jean-loup complained */
#if CRYPT
else if ((num_bad_pwd > 0L) && !error_in_archive)
error_in_archive = PK_WARN;
#endif
return error_in_archive;
} /* end function extract_or_test_files() */
/***************************/
/* Function store_info() */
/***************************/
static int store_info(__G) /* return 0 if skipping, 1 if OK */
__GDEF
{
#ifdef USE_BZIP2
# define UNKN_BZ2 (G.crec.compression_method!=BZIPPED)
#else
# define UNKN_BZ2 TRUE /* bzip2 unknown */
#endif
#ifdef USE_LZMA
# define UNKN_LZMA (G.crec.compression_method!=LZMAED)
#else
# define UNKN_LZMA TRUE /* LZMA unknown */
#endif
#ifdef USE_WAVP
# define UNKN_WAVP (G.crec.compression_method!=WAVPACKED)
#else
# define UNKN_WAVP TRUE /* WavPack unknown */
#endif
#ifdef USE_PPMD
# define UNKN_PPMD (G.crec.compression_method!=PPMDED)
#else
# define UNKN_PPMD TRUE /* PPMd unknown */
#endif
#ifdef USE_LZFSE
# define UNKN_LZFSE (G.crec.compression_method!=LZFSED)
#else
# define UNKN_LZFSE TRUE /* LZFSE unknown */
#endif
#ifdef SFX
# ifdef USE_DEFLATE64
# define UNKN_COMPR \
(G.crec.compression_method!=STORED && G.crec.compression_method<DEFLATED \
&& G.crec.compression_method>ENHDEFLATED \
&& UNKN_BZ2 && UNKN_LZMA && UNKN_WAVP && UNKN_PPMD && UNKN_LZFSE)
# else
# define UNKN_COMPR \
(G.crec.compression_method!=STORED && G.crec.compression_method!=DEFLATED\
&& UNKN_BZ2 && UNKN_LZMA && UNKN_WAVP && UNKN_PPMD && UNKN_LZFSE)
# endif
#else
# ifdef COPYRIGHT_CLEAN /* no reduced files */
# define UNKN_RED (G.crec.compression_method >= REDUCED1 && \
G.crec.compression_method <= REDUCED4)
# else
# define UNKN_RED FALSE /* reducing not unknown */
# endif
# ifdef LZW_CLEAN /* no shrunk files */
# define UNKN_SHR (G.crec.compression_method == SHRUNK)
# else
# define UNKN_SHR FALSE /* unshrinking not unknown */
# endif
# ifdef USE_DEFLATE64
# define UNKN_COMPR (UNKN_RED || UNKN_SHR || \
G.crec.compression_method==TOKENIZED || \
(G.crec.compression_method>ENHDEFLATED && UNKN_BZ2 && UNKN_LZMA \
&& UNKN_WAVP && UNKN_PPMD && UNKN_LZFSE))
# else
# define UNKN_COMPR (UNKN_RED || UNKN_SHR || \
G.crec.compression_method==TOKENIZED || \
(G.crec.compression_method>DEFLATED && UNKN_BZ2 && UNKN_LZMA \
&& UNKN_WAVP && UNKN_PPMD && UNKN_LZFSE))
# endif
#endif
#if (defined(USE_BZIP2) && (UNZIP_VERSION < UNZIP_BZ2VERS))
int unzvers_support = (UNKN_BZ2 ? UNZIP_VERSION : UNZIP_BZ2VERS);
# define UNZVERS_SUPPORT unzvers_support
#else
# define UNZVERS_SUPPORT UNZIP_VERSION
#endif
/*---------------------------------------------------------------------------
Check central directory info for version/compatibility requirements.
---------------------------------------------------------------------------*/
G.pInfo->encrypted = G.crec.general_purpose_bit_flag & 1; /* bit field */
G.pInfo->ExtLocHdr = (G.crec.general_purpose_bit_flag & 8) == 8; /* bit */
G.pInfo->textfile = G.crec.internal_file_attributes & 1; /* bit field */
G.pInfo->crc = G.crec.crc32;
G.pInfo->compr_size = G.crec.csize;
G.pInfo->uncompr_size = G.crec.ucsize;
switch (uO.aflag) {
case 0:
G.pInfo->textmode = FALSE; /* bit field */
break;
case 1:
G.pInfo->textmode = G.pInfo->textfile; /* auto-convert mode */
break;
default: /* case 2: */
G.pInfo->textmode = TRUE;
break;
}
if (G.crec.version_needed_to_extract[1] == VMS_) {
if (G.crec.version_needed_to_extract[0] > VMS_UNZIP_VERSION) {
if (!((uO.tflag && uO.qflag) || (!uO.tflag && !QCOND2)))
Info(slide, 0x401, ((char *)slide, LoadFarString(VersionMsg),
FnFilter1(G.filename), "VMS",
G.crec.version_needed_to_extract[0] / 10,
G.crec.version_needed_to_extract[0] % 10,
VMS_UNZIP_VERSION / 10, VMS_UNZIP_VERSION % 10));
return 0;
}
#ifndef VMS /* won't be able to use extra field, but still have data */
else if (!uO.tflag && !IS_OVERWRT_ALL) { /* if -o, extract anyway */
Info(slide, 0x481, ((char *)slide, LoadFarString(VMSFormatQuery),
FnFilter1(G.filename)));
fgets(G.answerbuf, sizeof(G.answerbuf), stdin);
if ((*G.answerbuf != 'y') && (*G.answerbuf != 'Y'))
return 0;
}
#endif /* !VMS */
/* usual file type: don't need VMS to extract */
} else if (G.crec.version_needed_to_extract[0] > UNZVERS_SUPPORT) {
if (!((uO.tflag && uO.qflag) || (!uO.tflag && !QCOND2)))
Info(slide, 0x401, ((char *)slide, LoadFarString(VersionMsg),
FnFilter1(G.filename), "PK",
G.crec.version_needed_to_extract[0] / 10,
G.crec.version_needed_to_extract[0] % 10,
UNZVERS_SUPPORT / 10, UNZVERS_SUPPORT % 10));
return 0;
}
if (UNKN_COMPR) {
if (!((uO.tflag && uO.qflag) || (!uO.tflag && !QCOND2))) {
#ifndef SFX
unsigned cmpridx;
if ((cmpridx = find_compr_idx(G.crec.compression_method))
< NUM_METHODS)
Info(slide, 0x401, ((char *)slide, LoadFarString(ComprMsgName),
FnFilter1(G.filename),
LoadFarStringSmall(ComprNames[cmpridx])));
else
#endif
Info(slide, 0x401, ((char *)slide, LoadFarString(ComprMsgNum),
FnFilter1(G.filename),
G.crec.compression_method));
}
return 0;
}
#if (!CRYPT)
if (G.pInfo->encrypted) {
if (!((uO.tflag && uO.qflag) || (!uO.tflag && !QCOND2)))
Info(slide, 0x401, ((char *)slide, LoadFarString(SkipEncrypted),
FnFilter1(G.filename)));
return 0;
}
#endif /* !CRYPT */
#ifndef SFX
/* store a copy of the central header filename for later comparison */
if ((G.pInfo->cfilname = zfmalloc(strlen(G.filename) + 1)) == NULL) {
Info(slide, 0x401, ((char *)slide, LoadFarString(WarnNoMemCFName),
FnFilter1(G.filename)));
} else
zfstrcpy(G.pInfo->cfilname, G.filename);
#endif /* !SFX */
/* map whatever file attributes we have into the local format */
mapattr(__G); /* GRR: worry about return value later */
G.pInfo->diskstart = G.crec.disk_number_start;
G.pInfo->offset = (zoff_t)G.crec.relative_offset_local_header;
return 1;
} /* end function store_info() */