734 lines
27 KiB
C
734 lines
27 KiB
C
/*
|
|
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
|
|
*/
|
|
/*---------------------------------------------------------------------------
|
|
|
|
list.c
|
|
|
|
This file contains the non-ZipInfo-specific listing routines for UnZip.
|
|
|
|
Contains: list_files()
|
|
get_time_stamp() [optional feature]
|
|
ratio()
|
|
fnprint()
|
|
|
|
---------------------------------------------------------------------------*/
|
|
|
|
|
|
#define UNZIP_INTERNAL
|
|
#include "unzip.h"
|
|
#ifdef WINDLL
|
|
# ifdef POCKET_UNZIP
|
|
# include "wince/intrface.h"
|
|
# else
|
|
# include "windll/windll.h"
|
|
# endif
|
|
#endif
|
|
|
|
|
|
#ifdef TIMESTAMP
|
|
static int fn_is_dir OF((__GPRO));
|
|
#endif
|
|
|
|
#ifndef WINDLL
|
|
static ZCONST char Far CompFactorStr[] = "%c%d%%";
|
|
static ZCONST char Far CompFactor100[] = "100%%";
|
|
|
|
#ifdef OS2_EAS
|
|
static ZCONST char Far HeadersS[] =
|
|
" Length EAs ACLs Date Time Name";
|
|
static ZCONST char Far HeadersS1[] =
|
|
"--------- --- ---- ---------- ----- ----";
|
|
#else
|
|
static ZCONST char Far HeadersS[] =
|
|
" Length Date Time Name";
|
|
static ZCONST char Far HeadersS1[] =
|
|
"--------- ---------- ----- ----";
|
|
#endif
|
|
|
|
static ZCONST char Far HeadersL[] =
|
|
" Length Method Size Cmpr Date Time CRC-32 Name";
|
|
static ZCONST char Far HeadersL1[] =
|
|
"-------- ------ ------- ---- ---------- ----- -------- ----";
|
|
static ZCONST char Far *Headers[][2] =
|
|
{ {HeadersS, HeadersS1}, {HeadersL, HeadersL1} };
|
|
|
|
static ZCONST char Far CaseConversion[] =
|
|
"%s (\"^\" ==> case\n%s conversion)\n";
|
|
static ZCONST char Far LongHdrStats[] =
|
|
"%s %-7s%s %4s %02u%c%02u%c%02u %02u:%02u %08lx %c";
|
|
static ZCONST char Far LongFileTrailer[] =
|
|
"-------- ------- --- \
|
|
-------\n%s %s %4s %lu file%s\n";
|
|
#ifdef OS2_EAS
|
|
static ZCONST char Far ShortHdrStats[] =
|
|
"%s %6lu %6lu %02u%c%02u%c%02u %02u:%02u %c";
|
|
static ZCONST char Far ShortFileTrailer[] =
|
|
"--------- ----- ----- \
|
|
-------\n%s %6lu %6lu %lu file%s\n";
|
|
static ZCONST char Far OS2ExtAttrTrailer[] =
|
|
"%lu file%s %lu bytes of OS/2 extended attributes attached.\n";
|
|
static ZCONST char Far OS2ACLTrailer[] =
|
|
"%lu file%s %lu bytes of access control lists attached.\n";
|
|
#else
|
|
static ZCONST char Far ShortHdrStats[] =
|
|
"%s %02u%c%02u%c%02u %02u:%02u %c";
|
|
static ZCONST char Far ShortFileTrailer[] =
|
|
"--------- -------\n%s\
|
|
%lu file%s\n";
|
|
#endif /* ?OS2_EAS */
|
|
#endif /* !WINDLL */
|
|
|
|
|
|
|
|
|
|
|
|
/*************************/
|
|
/* Function list_files() */
|
|
/*************************/
|
|
|
|
int list_files(__G) /* return PK-type error code */
|
|
__GDEF
|
|
{
|
|
int do_this_file=FALSE, cfactor, error, error_in_archive=PK_COOL;
|
|
#ifndef WINDLL
|
|
char sgn, cfactorstr[10];
|
|
int longhdr=(uO.vflag>1);
|
|
#endif
|
|
int date_format;
|
|
char dt_sepchar;
|
|
ulg members=0L;
|
|
zusz_t j;
|
|
unsigned methnum;
|
|
#ifdef USE_EF_UT_TIME
|
|
iztimes z_utime;
|
|
struct tm *t;
|
|
#endif
|
|
unsigned yr, mo, dy, hh, mm;
|
|
zusz_t csiz, tot_csize=0L, tot_ucsize=0L;
|
|
#ifdef OS2_EAS
|
|
ulg ea_size, tot_easize=0L, tot_eafiles=0L;
|
|
ulg acl_size, tot_aclsize=0L, tot_aclfiles=0L;
|
|
#endif
|
|
min_info info;
|
|
char methbuf[8];
|
|
static ZCONST char dtype[]="NXFS"; /* see zi_short() */
|
|
static ZCONST char Far method[NUM_METHODS+1][8] =
|
|
{"Stored", "Shrunk", "Reduce1", "Reduce2", "Reduce3", "Reduce4",
|
|
"Implode", "Token", "Defl:#", "Def64#", "ImplDCL", "BZip2",
|
|
"LZMA", "Terse", "IBMLZ77", "WavPack", "PPMd", "Unk:###"};
|
|
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Unlike extract_or_test_files(), this routine confines itself to the cen-
|
|
tral directory. Thus its structure is somewhat simpler, since we can do
|
|
just a single loop through the entire directory, listing files as we go.
|
|
|
|
So to start off, print the heading line and then begin main loop through
|
|
the central directory. The results will look vaguely like the following:
|
|
|
|
Length Method Size Ratio Date Time CRC-32 Name ("^" ==> case
|
|
-------- ------ ------- ----- ---- ---- ------ ---- conversion)
|
|
44004 Implode 13041 71% 11-02-89 19:34 8b4207f7 Makefile.UNIX
|
|
3438 Shrunk 2209 36% 09-15-90 14:07 a2394fd8 ^dos-file.ext
|
|
16717 Defl:X 5252 69% 11-03-97 06:40 1ce0f189 WHERE
|
|
-------- ------- --- -------
|
|
64159 20502 68% 3 files
|
|
---------------------------------------------------------------------------*/
|
|
|
|
G.pInfo = &info;
|
|
date_format = DATE_FORMAT;
|
|
dt_sepchar = DATE_SEPCHAR;
|
|
|
|
#ifndef WINDLL
|
|
if (uO.qflag < 2) {
|
|
if (uO.L_flag)
|
|
Info(slide, 0, ((char *)slide, LoadFarString(CaseConversion),
|
|
LoadFarStringSmall(Headers[longhdr][0]),
|
|
LoadFarStringSmall2(Headers[longhdr][1])));
|
|
else
|
|
Info(slide, 0, ((char *)slide, "%s\n%s\n",
|
|
LoadFarString(Headers[longhdr][0]),
|
|
LoadFarStringSmall(Headers[longhdr][1])));
|
|
}
|
|
#endif /* !WINDLL */
|
|
|
|
for (j = 1L;;j++) {
|
|
|
|
if (readbuf(__G__ G.sig, 4) == 0)
|
|
return PK_EOF;
|
|
if (memcmp(G.sig, central_hdr_sig, 4)) { /* is it a CentDir 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 (((j - 1) &
|
|
(ulg)(G.ecrec.have_ecr64 ? MASK_ZUCN64 : MASK_ZUCN16))
|
|
== (ulg)G.ecrec.total_entries_central_dir)
|
|
{
|
|
/* "j modulus 4T/64k" matches the reported 64/16-bit-unsigned
|
|
* number of directory entries -> probably, the regular
|
|
* end of the central directory has been reached
|
|
*/
|
|
break;
|
|
} else {
|
|
Info(slide, 0x401,
|
|
((char *)slide, LoadFarString(CentSigMsg), j));
|
|
Info(slide, 0x401,
|
|
((char *)slide, LoadFarString(ReportMsg)));
|
|
return PK_BADERR; /* sig not found */
|
|
}
|
|
}
|
|
/* process_cdir_file_hdr() sets pInfo->hostnum, pInfo->lcflag, ...: */
|
|
if ((error = process_cdir_file_hdr(__G)) != PK_COOL)
|
|
return error; /* only PK_EOF defined */
|
|
|
|
/*
|
|
* We could DISPLAY the filename instead of storing (and possibly trun-
|
|
* cating, in the case of a very long name) and printing it, but that
|
|
* has the disadvantage of not allowing case conversion--and it's nice
|
|
* to be able to see in the listing precisely how you have to type each
|
|
* filename in order for unzip to consider it a match. Speaking of
|
|
* which, if member names were specified on the command line, check in
|
|
* with match() to see if the current file is one of them, and make a
|
|
* note of it if it is.
|
|
*/
|
|
|
|
if ((error = do_string(__G__ G.crec.filename_length, DS_FN)) !=
|
|
PK_COOL) /* ^--(uses pInfo->lcflag) */
|
|
{
|
|
error_in_archive = error;
|
|
if (error > PK_WARN) /* fatal: can't continue */
|
|
return error;
|
|
}
|
|
if (G.extra_field != (uch *)NULL) {
|
|
free(G.extra_field);
|
|
G.extra_field = (uch *)NULL;
|
|
}
|
|
if ((error = do_string(__G__ G.crec.extra_field_length, EXTRA_FIELD))
|
|
!= 0)
|
|
{
|
|
error_in_archive = error;
|
|
if (error > PK_WARN) /* fatal */
|
|
return error;
|
|
}
|
|
if (!G.process_all_files) { /* check if specified on command line */
|
|
unsigned i;
|
|
|
|
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;
|
|
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 in match */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* If current file was specified on command line, or if no names were
|
|
* specified, do the listing for this file. Otherwise, get rid of the
|
|
* file comment and go back for the next file.
|
|
*/
|
|
|
|
if (G.process_all_files || do_this_file) {
|
|
|
|
#ifdef OS2DLL
|
|
/* this is used by UzpFileTree() to allow easy processing of lists
|
|
* of zip directory contents */
|
|
if (G.processExternally) {
|
|
if ((G.processExternally)(G.filename, &G.crec))
|
|
break;
|
|
++members;
|
|
} else {
|
|
#endif
|
|
#ifdef OS2_EAS
|
|
{
|
|
uch *ef_ptr = G.extra_field;
|
|
int ef_size, ef_len = G.crec.extra_field_length;
|
|
ea_size = acl_size = 0;
|
|
|
|
while (ef_len >= EB_HEADSIZE) {
|
|
ef_size = makeword(&ef_ptr[EB_LEN]);
|
|
switch (makeword(&ef_ptr[EB_ID])) {
|
|
case EF_OS2:
|
|
ea_size = makelong(&ef_ptr[EB_HEADSIZE]);
|
|
break;
|
|
case EF_ACL:
|
|
acl_size = makelong(&ef_ptr[EB_HEADSIZE]);
|
|
break;
|
|
}
|
|
ef_ptr += (ef_size + EB_HEADSIZE);
|
|
ef_len -= (ef_size + EB_HEADSIZE);
|
|
}
|
|
}
|
|
#endif
|
|
#ifdef USE_EF_UT_TIME
|
|
if (G.extra_field &&
|
|
#ifdef IZ_CHECK_TZ
|
|
G.tz_is_valid &&
|
|
#endif
|
|
(ef_scan_for_izux(G.extra_field, G.crec.extra_field_length, 1,
|
|
G.crec.last_mod_dos_datetime, &z_utime, NULL)
|
|
& EB_UT_FL_MTIME))
|
|
{
|
|
TIMET_TO_NATIVE(z_utime.mtime) /* NOP unless MSC 7.0, Mac */
|
|
t = localtime(&(z_utime.mtime));
|
|
} else
|
|
t = (struct tm *)NULL;
|
|
if (t != (struct tm *)NULL) {
|
|
mo = (unsigned)(t->tm_mon + 1);
|
|
dy = (unsigned)(t->tm_mday);
|
|
yr = (unsigned)(t->tm_year + 1900);
|
|
hh = (unsigned)(t->tm_hour);
|
|
mm = (unsigned)(t->tm_min);
|
|
} else
|
|
#endif /* USE_EF_UT_TIME */
|
|
{
|
|
yr = ((((unsigned)(G.crec.last_mod_dos_datetime >> 25) & 0x7f)
|
|
+ 1980));
|
|
mo = ((unsigned)(G.crec.last_mod_dos_datetime >> 21) & 0x0f);
|
|
dy = ((unsigned)(G.crec.last_mod_dos_datetime >> 16) & 0x1f);
|
|
hh = (((unsigned)G.crec.last_mod_dos_datetime >> 11) & 0x1f);
|
|
mm = (((unsigned)G.crec.last_mod_dos_datetime >> 5) & 0x3f);
|
|
}
|
|
/* permute date so it displays according to nat'l convention
|
|
* ('methnum' is not yet set, it is used as temporary buffer) */
|
|
switch (date_format) {
|
|
case DF_YMD:
|
|
methnum = mo;
|
|
mo = yr; yr = dy; dy = methnum;
|
|
break;
|
|
case DF_DMY:
|
|
methnum = mo;
|
|
mo = dy; dy = methnum;
|
|
}
|
|
|
|
csiz = G.crec.csize;
|
|
if (G.crec.general_purpose_bit_flag & 1)
|
|
csiz -= 12; /* if encrypted, don't count encryption header */
|
|
if ((cfactor = ratio(G.crec.ucsize, csiz)) < 0) {
|
|
#ifndef WINDLL
|
|
sgn = '-';
|
|
#endif
|
|
cfactor = (-cfactor + 5) / 10;
|
|
} else {
|
|
#ifndef WINDLL
|
|
sgn = ' ';
|
|
#endif
|
|
cfactor = (cfactor + 5) / 10;
|
|
}
|
|
|
|
methnum = find_compr_idx(G.crec.compression_method);
|
|
zfstrcpy(methbuf, method[methnum]);
|
|
if (G.crec.compression_method == DEFLATED ||
|
|
G.crec.compression_method == ENHDEFLATED) {
|
|
methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3];
|
|
} else if (methnum >= NUM_METHODS) {
|
|
sprintf(&methbuf[4], "%03u", G.crec.compression_method);
|
|
}
|
|
|
|
#if 0 /* GRR/Euro: add this? */
|
|
#if defined(DOS_FLX_NLM_OS2_W32) || defined(THEOS) || defined(UNIX)
|
|
for (p = G.filename; *p; ++p)
|
|
if (!isprint(*p))
|
|
*p = '?'; /* change non-printable chars to '?' */
|
|
#endif /* DOS_FLX_NLM_OS2_W32 || THEOS || UNIX */
|
|
#endif /* 0 */
|
|
|
|
#ifdef WINDLL
|
|
/* send data to application for formatting and printing */
|
|
if (G.lpUserFunctions->SendApplicationMessage != NULL)
|
|
(*G.lpUserFunctions->SendApplicationMessage)(G.crec.ucsize,
|
|
csiz, (unsigned)cfactor, mo, dy, yr, hh, mm,
|
|
(char)(G.pInfo->lcflag ? '^' : ' '),
|
|
(LPCSTR)fnfilter(G.filename, slide, (WSIZE>>1)),
|
|
(LPCSTR)methbuf, G.crec.crc32,
|
|
(char)((G.crec.general_purpose_bit_flag & 1) ? 'E' : ' '));
|
|
else if (G.lpUserFunctions->SendApplicationMessage_i32 != NULL) {
|
|
unsigned long ucsize_lo, csiz_lo;
|
|
unsigned long ucsize_hi=0L, csiz_hi=0L;
|
|
ucsize_lo = (unsigned long)(G.crec.ucsize);
|
|
csiz_lo = (unsigned long)(csiz);
|
|
#ifdef ZIP64_SUPPORT
|
|
ucsize_hi = (unsigned long)(G.crec.ucsize >> 32);
|
|
csiz_hi = (unsigned long)(csiz >> 32);
|
|
#endif /* ZIP64_SUPPORT */
|
|
(*G.lpUserFunctions->SendApplicationMessage_i32)(ucsize_lo,
|
|
ucsize_hi, csiz_lo, csiz_hi, (unsigned)cfactor,
|
|
mo, dy, yr, hh, mm,
|
|
(char)(G.pInfo->lcflag ? '^' : ' '),
|
|
(LPCSTR)fnfilter(G.filename, slide, (WSIZE>>1)),
|
|
(LPCSTR)methbuf, G.crec.crc32,
|
|
(char)((G.crec.general_purpose_bit_flag & 1) ? 'E' : ' '));
|
|
}
|
|
#else /* !WINDLL */
|
|
if (cfactor == 100)
|
|
sprintf(cfactorstr, LoadFarString(CompFactor100));
|
|
else
|
|
sprintf(cfactorstr, LoadFarString(CompFactorStr), sgn, cfactor);
|
|
if (longhdr)
|
|
Info(slide, 0, ((char *)slide, LoadFarString(LongHdrStats),
|
|
FmZofft(G.crec.ucsize, "8", "u"), methbuf,
|
|
FmZofft(csiz, "8", "u"), cfactorstr,
|
|
mo, dt_sepchar, dy, dt_sepchar, yr, hh, mm,
|
|
G.crec.crc32, (G.pInfo->lcflag? '^':' ')));
|
|
else
|
|
#ifdef OS2_EAS
|
|
Info(slide, 0, ((char *)slide, LoadFarString(ShortHdrStats),
|
|
FmZofft(G.crec.ucsize, "9", "u"), ea_size, acl_size,
|
|
mo, dt_sepchar, dy, dt_sepchar, yr, hh, mm,
|
|
(G.pInfo->lcflag? '^':' ')));
|
|
#else
|
|
Info(slide, 0, ((char *)slide, LoadFarString(ShortHdrStats),
|
|
FmZofft(G.crec.ucsize, "9", "u"),
|
|
mo, dt_sepchar, dy, dt_sepchar, yr, hh, mm,
|
|
(G.pInfo->lcflag? '^':' ')));
|
|
#endif
|
|
fnprint(__G);
|
|
#endif /* ?WINDLL */
|
|
|
|
if ((error = do_string(__G__ G.crec.file_comment_length,
|
|
QCOND? DISPL_8 : SKIP)) != 0)
|
|
{
|
|
error_in_archive = error; /* might be just warning */
|
|
if (error > PK_WARN) /* fatal */
|
|
return error;
|
|
}
|
|
tot_ucsize += G.crec.ucsize;
|
|
tot_csize += csiz;
|
|
++members;
|
|
#ifdef OS2_EAS
|
|
if (ea_size) {
|
|
tot_easize += ea_size;
|
|
++tot_eafiles;
|
|
}
|
|
if (acl_size) {
|
|
tot_aclsize += acl_size;
|
|
++tot_aclfiles;
|
|
}
|
|
#endif
|
|
#ifdef OS2DLL
|
|
} /* end of "if (G.processExternally) {...} else {..." */
|
|
#endif
|
|
} else { /* not listing this file */
|
|
SKIP_(G.crec.file_comment_length)
|
|
}
|
|
} /* end for-loop (j: files in central directory) */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Print footer line and totals (compressed size, uncompressed size, number
|
|
of members in zipfile).
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (uO.qflag < 2
|
|
#ifdef OS2DLL
|
|
&& !G.processExternally
|
|
#endif
|
|
) {
|
|
if ((cfactor = ratio(tot_ucsize, tot_csize)) < 0) {
|
|
#ifndef WINDLL
|
|
sgn = '-';
|
|
#endif
|
|
cfactor = (-cfactor + 5) / 10;
|
|
} else {
|
|
#ifndef WINDLL
|
|
sgn = ' ';
|
|
#endif
|
|
cfactor = (cfactor + 5) / 10;
|
|
}
|
|
#ifdef WINDLL
|
|
/* pass the totals back to the calling application */
|
|
G.lpUserFunctions->TotalSizeComp = tot_csize;
|
|
G.lpUserFunctions->TotalSize = tot_ucsize;
|
|
G.lpUserFunctions->CompFactor = (ulg)cfactor;
|
|
G.lpUserFunctions->NumMembers = members;
|
|
|
|
#else /* !WINDLL */
|
|
if (cfactor == 100)
|
|
sprintf(cfactorstr, LoadFarString(CompFactor100));
|
|
else
|
|
sprintf(cfactorstr, LoadFarString(CompFactorStr), sgn, cfactor);
|
|
if (longhdr) {
|
|
Info(slide, 0, ((char *)slide, LoadFarString(LongFileTrailer),
|
|
FmZofft(tot_ucsize, "8", "u"), FmZofft(tot_csize, "8", "u"),
|
|
cfactorstr, members, members==1? "":"s"));
|
|
#ifdef OS2_EAS
|
|
if (tot_easize || tot_aclsize)
|
|
Info(slide, 0, ((char *)slide, "\n"));
|
|
if (tot_eafiles && tot_easize)
|
|
Info(slide, 0, ((char *)slide, LoadFarString(OS2ExtAttrTrailer),
|
|
tot_eafiles, tot_eafiles == 1? " has" : "s have a total of",
|
|
tot_easize));
|
|
if (tot_aclfiles && tot_aclsize)
|
|
Info(slide, 0, ((char *)slide, LoadFarString(OS2ACLTrailer),
|
|
tot_aclfiles,
|
|
tot_aclfiles == 1 ? " has" : "s have a total of",
|
|
tot_aclsize));
|
|
#endif /* OS2_EAS */
|
|
} else
|
|
#ifdef OS2_EAS
|
|
Info(slide, 0, ((char *)slide, LoadFarString(ShortFileTrailer),
|
|
FmZofft(tot_ucsize, "9", "u"), tot_easize, tot_aclsize,
|
|
members, members == 1 ? "" : "s"));
|
|
#else
|
|
Info(slide, 0, ((char *)slide, LoadFarString(ShortFileTrailer),
|
|
FmZofft(tot_ucsize, "9", "u"),
|
|
members, members == 1 ? "" : "s"));
|
|
#endif /* OS2_EAS */
|
|
#endif /* ?WINDLL */
|
|
}
|
|
|
|
/* Skip the following checks in case of a premature listing break. */
|
|
if (error_in_archive <= PK_WARN) {
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Double check that we're back at the end-of-central-directory record.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if ( (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)
|
|
) { /* just to make sure again */
|
|
Info(slide, 0x401, ((char *)slide, LoadFarString(EndSigMsg)));
|
|
error_in_archive = PK_WARN; /* didn't find sig */
|
|
}
|
|
|
|
/* Set specific return code when no files have been found. */
|
|
if (members == 0L && error_in_archive <= PK_WARN)
|
|
error_in_archive = PK_FIND;
|
|
|
|
}
|
|
|
|
return error_in_archive;
|
|
|
|
} /* end function list_files() */
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef TIMESTAMP
|
|
|
|
/************************/
|
|
/* Function fn_is_dir() */
|
|
/************************/
|
|
|
|
static int fn_is_dir(__G) /* returns TRUE if G.filename is directory */
|
|
__GDEF
|
|
{
|
|
extent fn_len = strlen(G.filename);
|
|
register char endc;
|
|
|
|
return fn_len > 0 &&
|
|
((endc = lastchar(G.filename, fn_len)) == '/' ||
|
|
(G.pInfo->hostnum == FS_FAT_ && !MBSCHR(G.filename, '/') &&
|
|
endc == '\\'));
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*****************************/
|
|
/* Function get_time_stamp() */
|
|
/*****************************/
|
|
|
|
int get_time_stamp(__G__ last_modtime, nmember) /* return PK-type error code */
|
|
__GDEF
|
|
time_t *last_modtime;
|
|
ulg *nmember;
|
|
{
|
|
int do_this_file=FALSE, error, error_in_archive=PK_COOL;
|
|
ulg j;
|
|
#ifdef USE_EF_UT_TIME
|
|
iztimes z_utime;
|
|
#endif
|
|
min_info info;
|
|
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Unlike extract_or_test_files() but like list_files(), this function works
|
|
on information in the central directory alone. Thus we have a single,
|
|
large loop through the entire directory, searching for the latest time
|
|
stamp.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
*last_modtime = 0L; /* assuming no zipfile data older than 1970 */
|
|
*nmember = 0L;
|
|
G.pInfo = &info;
|
|
|
|
for (j = 1L;; j++) {
|
|
|
|
if (readbuf(__G__ G.sig, 4) == 0)
|
|
return PK_EOF;
|
|
if (memcmp(G.sig, central_hdr_sig, 4)) { /* is it a CentDir entry? */
|
|
if (((unsigned)(j - 1) & (unsigned)0xFFFF) ==
|
|
(unsigned)G.ecrec.total_entries_central_dir) {
|
|
/* "j modulus 64k" matches the reported 16-bit-unsigned
|
|
* number of directory entries -> probably, the regular
|
|
* end of the central directory has been reached
|
|
*/
|
|
break;
|
|
} else {
|
|
Info(slide, 0x401,
|
|
((char *)slide, LoadFarString(CentSigMsg), j));
|
|
Info(slide, 0x401,
|
|
((char *)slide, LoadFarString(ReportMsg)));
|
|
return PK_BADERR; /* sig not found */
|
|
}
|
|
}
|
|
/* process_cdir_file_hdr() sets pInfo->lcflag: */
|
|
if ((error = process_cdir_file_hdr(__G)) != PK_COOL)
|
|
return error; /* only PK_EOF defined */
|
|
if ((error = do_string(__G__ G.crec.filename_length, DS_FN)) != PK_OK)
|
|
{ /* ^-- (uses pInfo->lcflag) */
|
|
error_in_archive = error;
|
|
if (error > PK_WARN) /* fatal: can't continue */
|
|
return error;
|
|
}
|
|
if (G.extra_field != (uch *)NULL) {
|
|
free(G.extra_field);
|
|
G.extra_field = (uch *)NULL;
|
|
}
|
|
if ((error = do_string(__G__ G.crec.extra_field_length, EXTRA_FIELD))
|
|
!= 0)
|
|
{
|
|
error_in_archive = error;
|
|
if (error > PK_WARN) /* fatal */
|
|
return error;
|
|
}
|
|
if (!G.process_all_files) { /* check if specified on command line */
|
|
unsigned i;
|
|
|
|
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;
|
|
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 in match */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If current file was specified on command line, or if no names were
|
|
* specified, check the time for this file. Either way, get rid of the
|
|
* file comment and go back for the next file.
|
|
* Directory entries are always ignored, to stay compatible with both
|
|
* Zip and PKZIP.
|
|
*/
|
|
if ((G.process_all_files || do_this_file) && !fn_is_dir(__G)) {
|
|
#ifdef USE_EF_UT_TIME
|
|
if (G.extra_field &&
|
|
#ifdef IZ_CHECK_TZ
|
|
G.tz_is_valid &&
|
|
#endif
|
|
(ef_scan_for_izux(G.extra_field, G.crec.extra_field_length, 1,
|
|
G.crec.last_mod_dos_datetime, &z_utime, NULL)
|
|
& EB_UT_FL_MTIME))
|
|
{
|
|
if (*last_modtime < z_utime.mtime)
|
|
*last_modtime = z_utime.mtime;
|
|
} else
|
|
#endif /* USE_EF_UT_TIME */
|
|
{
|
|
time_t modtime = dos_to_unix_time(G.crec.last_mod_dos_datetime);
|
|
|
|
if (*last_modtime < modtime)
|
|
*last_modtime = modtime;
|
|
}
|
|
++*nmember;
|
|
}
|
|
SKIP_(G.crec.file_comment_length)
|
|
|
|
} /* end for-loop (j: files in central directory) */
|
|
|
|
/*---------------------------------------------------------------------------
|
|
Double check that we're back at the end-of-central-directory record.
|
|
---------------------------------------------------------------------------*/
|
|
|
|
if (memcmp(G.sig, end_central_sig, 4)) { /* just to make sure again */
|
|
Info(slide, 0x401, ((char *)slide, LoadFarString(EndSigMsg)));
|
|
error_in_archive = PK_WARN;
|
|
}
|
|
if (*nmember == 0L && error_in_archive <= PK_WARN)
|
|
error_in_archive = PK_FIND;
|
|
|
|
return error_in_archive;
|
|
|
|
} /* end function get_time_stamp() */
|
|
|
|
#endif /* TIMESTAMP */
|
|
|
|
|
|
|
|
|
|
|
|
/********************/
|
|
/* Function ratio() */ /* also used by ZipInfo routines */
|
|
/********************/
|
|
|
|
int ratio(uc, c)
|
|
zusz_t uc, c;
|
|
{
|
|
zusz_t denom;
|
|
|
|
if (uc == 0)
|
|
return 0;
|
|
if (uc > 2000000L) { /* risk signed overflow if multiply numerator */
|
|
denom = uc / 1000L;
|
|
return ((uc >= c) ?
|
|
(int) ((uc-c + (denom>>1)) / denom) :
|
|
-((int) ((c-uc + (denom>>1)) / denom)));
|
|
} else { /* ^^^^^^^^ rounding */
|
|
denom = uc;
|
|
return ((uc >= c) ?
|
|
(int) ((1000L*(uc-c) + (denom>>1)) / denom) :
|
|
-((int) ((1000L*(c-uc) + (denom>>1)) / denom)));
|
|
} /* ^^^^^^^^ rounding */
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/************************/
|
|
/* Function fnprint() */ /* also used by ZipInfo routines */
|
|
/************************/
|
|
|
|
void fnprint(__G) /* print filename (after filtering) and newline */
|
|
__GDEF
|
|
{
|
|
char *name = fnfilter(G.filename, slide, (extent)(WSIZE>>1));
|
|
|
|
(*G.message)((zvoid *)&G, (uch *)name, (ulg)strlen(name), 0);
|
|
(*G.message)((zvoid *)&G, (uch *)"\n", 1L, 0);
|
|
|
|
} /* end function fnprint() */
|