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campo-sirio/zip/unzip/list.c
alex f0d81ffd1c This commit was generated by cvs2svn to compensate for changes in r5402, 
which included commits to RCS files with non-trunk default branches.

git-svn-id: svn://10.65.10.50/trunk@5403 c028cbd2-c16b-5b4b-a496-9718f37d4682
1997-10-20 15:51:36 +00:00

636 lines
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C
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/*---------------------------------------------------------------------------
list.c
This file contains the non-ZipInfo-specific listing routines for UnZip.
Contains: list_files()
time_stamp() [still experimental and Unix-only]
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 TIME_STAMP
static int fn_is_dir OF((__GPRO));
#endif
/* GRR 970327: Headers*[] formerly referenced in WinGUI code; no longer? */
#ifdef OS2_EAS
char Far HeadersS[] = " Length EAs ACLs Date Time Name";
char Far HeadersS1[] = " ------ --- ---- ---- ---- ----";
#else
char Far HeadersS[] = " Length Date Time Name";
char Far HeadersS1[] = " ------ ---- ---- ----";
#endif
static char Far CompFactorStr[] = "%c%d%%";
static char Far CompFactor100[] = "100%%";
#ifndef WINDLL
char Far HeadersL[] =
" Length Method Size Ratio Date Time CRC-32 Name";
char Far HeadersL1[] =
" ------ ------ ---- ----- ---- ---- ------ ----";
char Far *Headers[][2] = { {HeadersS, HeadersS1}, {HeadersL, HeadersL1} };
static char Far CaseConversion[] = "%s (\"^\" ==> case\n%s conversion)\n";
static char Far LongHdrStats[] =
"%7lu %-7s%7lu %4s %02u-%02u-%02u %02u:%02u %08lx %c";
static char Far LongFileTrailer[] =
" ------ ------ --- \
-------\n%7lu %7lu %4s %u file%s\n";
#ifdef OS2_EAS
static char Far ShortHdrStats[] =
"%7lu %6lu %6lu %02u-%02u-%02u %02u:%02u %c";
static char Far ShortFileTrailer[] = " ------ ----- ----- \
-------\n%7lu %6lu %6lu %u file%s\n";
static char Far OS2ExtAttrTrailer[] =
"%ld file%s %ld bytes of OS/2 extended attributes attached.\n";
static char Far OS2ACLTrailer[] =
"%ld file%s %ld bytes of access control lists attached.\n";
#else
static char Far ShortHdrStats[] = "%7lu %02u-%02u-%02u %02u:%02u %c";
static char Far ShortFileTrailer[] =
" ------ -------\n%7lu %u file%s\n";
#endif /* ?OS2_EAS */
#endif /* ?WINDLL */
/*************************/
/* Function list_files() */
/*************************/
int list_files(__G) /* return PK-type error code */
__GDEF
{
char sgn, cfactorstr[10];
int do_this_file=FALSE, cfactor, error, error_in_archive=PK_COOL;
#ifndef WINDLL
int longhdr=(G.vflag>1);
#endif
int date_format;
unsigned methnum;
#ifdef USE_EF_UT_TIME
iztimes z_utime;
#endif
ush j, yr, mo, dy, hh, mm, members=0;
ulg 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 char dtype[]="NXFS"; /* see zi_short() */
static char Far method[NUM_METHODS+1][8] =
{"Stored", "Shrunk", "Reduce1", "Reduce2", "Reduce3", "Reduce4",
"Implode", "Token", "Defl:#", "EnhDefl", "ImplDCL", "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
---------------------------------------------------------------------------*/
G.pInfo = &info;
date_format = DATE_FORMAT;
#ifndef WINDLL
if (G.qflag < 2)
if (G.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 = 0; j < G.ecrec.total_entries_central_dir; ++j) {
if (readbuf(__G__ G.sig, 4) == 0)
return PK_EOF;
if (strncmp(G.sig, G.central_hdr_sig, 4)) { /* just to make sure */
Info(slide, 0x401, ((char *)slide, LoadFarString(CentSigMsg), j));
Info(slide, 0x401, ((char *)slide, LoadFarString(ReportMsg)));
return PK_BADERR;
}
/* process_cdir_file_hdr() sets 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 */
char **pfn = G.pfnames-1;
do_this_file = FALSE;
while (*++pfn)
if (match(G.filename, *pfn, G.C_flag)) {
do_this_file = TRUE;
break; /* found match, so stop looping */
}
if (do_this_file) { /* check if this is an excluded file */
char **pxn = G.pxnames-1;
while (*++pxn)
if (match(G.filename, *pxn, G.C_flag)) {
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;
else
continue;
#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 &&
(ef_scan_for_izux(G.extra_field, G.crec.extra_field_length, 1,
&z_utime, NULL) & EB_UT_FL_MTIME))
{
struct tm *t;
TIMET_TO_NATIVE(z_utime.mtime) /* NOP unless MSC 7.0, Mac */
t = localtime(&(z_utime.mtime));
switch (date_format) {
case DF_YMD:
mo = (ush)(t->tm_year);
dy = (ush)(t->tm_mon + 1);
yr = (ush)(t->tm_mday);
break;
case DF_DMY:
mo = (ush)(t->tm_mday);
dy = (ush)(t->tm_mon + 1);
yr = (ush)(t->tm_year);
break;
default:
mo = (ush)(t->tm_mon + 1);
dy = (ush)(t->tm_mday);
yr = (ush)(t->tm_year);
}
hh = (ush)(t->tm_hour);
mm = (ush)(t->tm_min);
} else
#endif /* USE_EF_UT_TIME */
{
yr = (ush)((((G.crec.last_mod_file_date >> 9) & 0x7f) + 80) %
(unsigned)100);
mo = (ush)((G.crec.last_mod_file_date >> 5) & 0x0f);
dy = (ush)(G.crec.last_mod_file_date & 0x1f);
/* permute date so it displays according to nat'l convention */
switch (date_format) {
case DF_YMD:
hh = mo; mo = yr; yr = dy; dy = hh;
break;
case DF_DMY:
hh = mo; mo = dy; dy = hh;
}
hh = (ush)((G.crec.last_mod_file_time >> 11) & 0x1f);
mm = (ush)((G.crec.last_mod_file_time >> 5) & 0x3f);
}
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) {
sgn = '-';
cfactor = (-cfactor + 5) / 10;
} else {
sgn = ' ';
cfactor = (cfactor + 5) / 10;
}
if (cfactor == 100)
sprintf(cfactorstr, LoadFarString(CompFactor100));
else
sprintf(cfactorstr, LoadFarString(CompFactorStr), sgn, cfactor);
methnum = MIN(G.crec.compression_method, NUM_METHODS);
zfstrcpy(methbuf, method[methnum]);
if (methnum == DEFLATED) {
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_OS2_W32) || defined(UNIX)
for (p = G.filename; *p; ++p)
if (!isprint(*p))
*p = '?'; /* change non-printable chars to '?' */
#endif /* DOS_OS2_W32 || UNIX */
#endif /* 0 */
#ifdef WINDLL
/* send data to application for formatting and printing */
(*lpUserFunctions->SendApplicationMessage)(G.crec.ucsize, csiz,
(ush)cfactor, mo, dy, yr, hh, mm,
(char)(G.pInfo->lcflag ? '^' : ' '),
fnfilter(G.filename, slide), methbuf, G.crec.crc32,
(G.crec.general_purpose_bit_flag & 1)? 'E' : ' ');
#else /* !WINDLL */
if (longhdr)
Info(slide, 0, ((char *)slide, LoadFarString(LongHdrStats),
G.crec.ucsize, methbuf, csiz, cfactorstr, mo, dy,
yr, hh, mm, G.crec.crc32, (G.pInfo->lcflag? '^':' ')));
else
#ifdef OS2_EAS
Info(slide, 0, ((char *)slide, LoadFarString(ShortHdrStats),
G.crec.ucsize, ea_size, acl_size,
mo, dy, yr, hh, mm, (G.pInfo->lcflag? '^':' ')));
#else
Info(slide, 0, ((char *)slide, LoadFarString(ShortHdrStats),
G.crec.ucsize,
mo, dy, 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
} 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 (G.qflag < 2) {
if ((cfactor = ratio(tot_ucsize, tot_csize)) < 0) {
sgn = '-';
cfactor = (-cfactor + 5) / 10;
} else {
sgn = ' ';
cfactor = (cfactor + 5) / 10;
}
if (cfactor == 100)
sprintf(cfactorstr, LoadFarString(CompFactor100));
else
sprintf(cfactorstr, LoadFarString(CompFactorStr), sgn, cfactor);
#ifdef WINDLL
/* pass the totals back to the calling application */
lpUserFunctions->TotalSizeComp = tot_csize;
lpUserFunctions->TotalSize = tot_ucsize;
lpUserFunctions->CompFactor = cfactor;
lpUserFunctions->NumMembers = members;
#else /* !WINDLL */
if (longhdr) {
Info(slide, 0, ((char *)slide, LoadFarString(LongFileTrailer),
tot_ucsize, tot_csize, 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),
tot_ucsize, tot_easize, tot_aclsize, members, members == 1?
"" : "s"));
#else
Info(slide, 0, ((char *)slide, LoadFarString(ShortFileTrailer),
tot_ucsize, members, members == 1? "" : "s"));
#endif /* OS2_EAs */
#endif /* ?WINDLL */
}
/*---------------------------------------------------------------------------
Double check that we're back at the end-of-central-directory record.
---------------------------------------------------------------------------*/
if (readbuf(__G__ G.sig, 4) == 0)
return PK_EOF;
if (strncmp(G.sig, G.end_central_sig, 4)) { /* just to make sure again */
Info(slide, 0x401, ((char *)slide, LoadFarString(EndSigMsg)));
error_in_archive = PK_WARN;
}
if (members == 0 && 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 = G.filename[fn_len-1]) == '/' ||
(G.pInfo->hostnum == FS_FAT_ && !strchr(G.filename, '/') &&
endc == '\\'));
}
/*************************/
/* Function time_stamp() */
/*************************/
int time_stamp(__G) /* return PK-type error code */
__GDEF
{
int do_this_file=FALSE, error, error_in_archive=PK_COOL;
iztimes z_utime;
time_t last_modtime=0L; /* assuming no zipfile data older than 1970 */
ush j, members=0;
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.
---------------------------------------------------------------------------*/
G.pInfo = &info;
for (j = 0; j < G.ecrec.total_entries_central_dir; ++j) {
if (readbuf(__G__ G.sig, 4) == 0)
return PK_EOF;
if (strncmp(G.sig, G.central_hdr_sig, 4)) { /* just to make sure */
Info(slide, 0x401, ((char *)slide, LoadFarString(CentSigMsg), j));
Info(slide, 0x401, ((char *)slide, LoadFarString(ReportMsg)));
return PK_BADERR;
}
/* 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 */
char **pfn = G.pfnames-1;
do_this_file = FALSE;
while (*++pfn)
if (match(G.filename, *pfn, G.C_flag)) {
do_this_file = TRUE;
break; /* found match, so stop looping */
}
if (do_this_file) { /* check if this is an excluded file */
char **pxn = G.pxnames-1;
while (*++pxn)
if (match(G.filename, *pxn, G.C_flag)) {
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 &&
(ef_scan_for_izux(G.extra_field, G.crec.extra_field_length, 1,
&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_file_date,
G.crec.last_mod_file_time);
if (last_modtime < modtime)
last_modtime = modtime;
}
++members;
}
SKIP_(G.crec.file_comment_length)
} /* end for-loop (j: files in central directory) */
/*---------------------------------------------------------------------------
Set the modification (and access) time on the zipfile, assuming we have
a modification time to set.
---------------------------------------------------------------------------*/
if (members > 0) {
z_utime.mtime = z_utime.atime = last_modtime;
if (utime(G.zipfn, (ztimbuf *)&z_utime))
Info(slide, 0x201, ((char *)slide,
"warning: can't set time for %s\n", G.zipfn));
}
/*---------------------------------------------------------------------------
Double check that we're back at the end-of-central-directory record.
---------------------------------------------------------------------------*/
if (readbuf(__G__ G.sig, 4) == 0)
return PK_EOF;
if (strncmp(G.sig, G.end_central_sig, 4)) { /* just to make sure again */
Info(slide, 0x401, ((char *)slide, LoadFarString(EndSigMsg)));
error_in_archive = PK_WARN;
}
if (members == 0 && error_in_archive <= PK_WARN)
error_in_archive = PK_FIND;
return error_in_archive;
} /* end function time_stamp() */
#endif /* TIMESTAMP */
/********************/
/* Function ratio() */ /* also used by ZipInfo routines */
/********************/
int ratio(uc, c)
ulg uc, c;
{
ulg 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);
(*G.message)((zvoid *)&G, (uch *)name, (ulg)strlen(name), 0);
(*G.message)((zvoid *)&G, (uch *)"\n", 1L, 0);
} /* end function fnprint() */
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