zipinfo.c

压缩解压,是unzip540的升级,这个外国网站摘来的源码,是evb编写.

/*
  Copyright (c) 1990-2005 Info-ZIP.  All rights reserved.

  See the accompanying file LICENSE, version 2000-Apr-09 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
*/
/*---------------------------------------------------------------------------

  zipinfo.c                                              Greg Roelofs et al.

  This file contains all of the ZipInfo-specific listing routines for UnZip.

  Contains:  zi_opts()
             zi_end_central()
             zipinfo()
             zi_long()
             zi_short()
             zi_time()

  ---------------------------------------------------------------------------*/


#define UNZIP_INTERNAL
#include "unzip.h"


#ifndef NO_ZIPINFO  /* strings use up too much space in small-memory systems */

/* Define OS-specific attributes for use on ALL platforms--the S_xxxx
 * versions of these are defined differently (or not defined) by different
 * compilers and operating systems. */

#define UNX_IFMT       0170000     /* Unix file type mask */
#define UNX_IFREG      0100000     /* Unix regular file */
#define UNX_IFSOCK     0140000     /* Unix socket (BSD, not SysV or Amiga) */
#define UNX_IFLNK      0120000     /* Unix symbolic link (not SysV, Amiga) */
#define UNX_IFBLK      0060000     /* Unix block special       (not Amiga) */
#define UNX_IFDIR      0040000     /* Unix directory */
#define UNX_IFCHR      0020000     /* Unix character special   (not Amiga) */
#define UNX_IFIFO      0010000     /* Unix fifo    (BCC, not MSC or Amiga) */
#define UNX_ISUID      04000       /* Unix set user id on execution */
#define UNX_ISGID      02000       /* Unix set group id on execution */
#define UNX_ISVTX      01000       /* Unix directory permissions control */
#define UNX_ENFMT      UNX_ISGID   /* Unix record locking enforcement flag */
#define UNX_IRWXU      00700       /* Unix read, write, execute: owner */
#define UNX_IRUSR      00400       /* Unix read permission: owner */
#define UNX_IWUSR      00200       /* Unix write permission: owner */
#define UNX_IXUSR      00100       /* Unix execute permission: owner */
#define UNX_IRWXG      00070       /* Unix read, write, execute: group */
#define UNX_IRGRP      00040       /* Unix read permission: group */
#define UNX_IWGRP      00020       /* Unix write permission: group */
#define UNX_IXGRP      00010       /* Unix execute permission: group */
#define UNX_IRWXO      00007       /* Unix read, write, execute: other */
#define UNX_IROTH      00004       /* Unix read permission: other */
#define UNX_IWOTH      00002       /* Unix write permission: other */
#define UNX_IXOTH      00001       /* Unix execute permission: other */

#define VMS_IRUSR      UNX_IRUSR   /* VMS read/owner */
#define VMS_IWUSR      UNX_IWUSR   /* VMS write/owner */
#define VMS_IXUSR      UNX_IXUSR   /* VMS execute/owner */
#define VMS_IRGRP      UNX_IRGRP   /* VMS read/group */
#define VMS_IWGRP      UNX_IWGRP   /* VMS write/group */
#define VMS_IXGRP      UNX_IXGRP   /* VMS execute/group */
#define VMS_IROTH      UNX_IROTH   /* VMS read/other */
#define VMS_IWOTH      UNX_IWOTH   /* VMS write/other */
#define VMS_IXOTH      UNX_IXOTH   /* VMS execute/other */

#define AMI_IFMT       06000       /* Amiga file type mask */
#define AMI_IFDIR      04000       /* Amiga directory */
#define AMI_IFREG      02000       /* Amiga regular file */
#define AMI_IHIDDEN    00200       /* to be supported in AmigaDOS 3.x */
#define AMI_ISCRIPT    00100       /* executable script (text command file) */
#define AMI_IPURE      00040       /* allow loading into resident memory */
#define AMI_IARCHIVE   00020       /* not modified since bit was last set */
#define AMI_IREAD      00010       /* can be opened for reading */
#define AMI_IWRITE     00004       /* can be opened for writing */
#define AMI_IEXECUTE   00002       /* executable image, a loadable runfile */
#define AMI_IDELETE    00001       /* can be deleted */

#define THS_IFMT    0xF000         /* Theos file type mask */
#define THS_IFIFO   0x1000         /* pipe */
#define THS_IFCHR   0x2000         /* char device */
#define THS_IFSOCK  0x3000         /* socket */
#define THS_IFDIR   0x4000         /* directory */
#define THS_IFLIB   0x5000         /* library */
#define THS_IFBLK   0x6000         /* block device */
#define THS_IFREG   0x8000         /* regular file */
#define THS_IFREL   0x9000         /* relative (direct) */
#define THS_IFKEY   0xA000         /* keyed */
#define THS_IFIND   0xB000         /* indexed */
#define THS_IFRND   0xC000         /* ???? */
#define THS_IFR16   0xD000         /* 16 bit real mode program */
#define THS_IFP16   0xE000         /* 16 bit protected mode prog */
#define THS_IFP32   0xF000         /* 32 bit protected mode prog */
#define THS_IMODF   0x0800         /* modified */
#define THS_INHID   0x0400         /* not hidden */
#define THS_IEUSR   0x0200         /* erase permission: owner */
#define THS_IRUSR   0x0100         /* read permission: owner */
#define THS_IWUSR   0x0080         /* write permission: owner */
#define THS_IXUSR   0x0040         /* execute permission: owner */
#define THS_IROTH   0x0004         /* read permission: other */
#define THS_IWOTH   0x0002         /* write permission: other */
#define THS_IXOTH   0x0001         /* execute permission: other */

#ifdef OLD_THEOS_EXTRA
#  include "theos/oldstat.h"
#endif

#ifndef NSK_UNSTRUCTURED
# define NSK_UNSTRUCTURED   0
#endif
#ifndef NSK_OBJECTFILECODE
# define NSK_OBJECTFILECODE 100
#endif
#ifndef NSK_EDITFILECODE
# define NSK_EDITFILECODE   101
#endif

#define LFLAG  3   /* short "ls -l" type listing */

static int   zi_long   OF((__GPRO__ ulg *pEndprev));
static int   zi_short  OF((__GPRO));
static void  zi_showMacTypeCreator
                       OF((__GPRO__ uch *ebfield));
static char *zi_time   OF((__GPRO__ ZCONST ulg *datetimez,
                           ZCONST time_t *modtimez, char *d_t_str));


/**********************************************/
/*  Strings used in zipinfo.c (ZipInfo half)  */
/**********************************************/

static ZCONST char nullStr[] = "";
static ZCONST char PlurSufx[] = "s";

static ZCONST char Far LongHeader[] = "Archive:  %s   %ld bytes   %u file%s\n";
static ZCONST char Far ShortHeader[] = "Archive:  %s   %ld   %u\n";
static ZCONST char Far EndCentDirRec[] = "\nEnd-of-central-directory record:\n";
static ZCONST char Far LineSeparators[] = "-------------------------------\n\n";
static ZCONST char Far ActOffsetCentDir[] = "\
  Actual offset of end-of-central-dir record:   %9ld (%.8lXh)\n\
  Expected offset of end-of-central-dir record: %9ld (%.8lXh)\n\
  (based on the length of the central directory and its expected offset)\n\n";
static ZCONST char Far SinglePartArchive1[] = "\
  This zipfile constitutes the sole disk of a single-part archive; its\n\
  central directory contains %u %s.  The central directory is %lu\n\
  (%.8lXh) bytes long, and its (expected) offset in bytes from the\n";
static ZCONST char Far SinglePartArchive2[] = "\
  beginning of the zipfile is %lu (%.8lXh).\n\n";
static ZCONST char Far MultiPartArchive1[] = "\
  This zipfile constitutes disk %u of a multi-part archive.  The central\n\
  directory starts on disk %u; %u of its entries %s contained within\n";
static ZCONST char Far MultiPartArchive2[] = "\
  this zipfile, out of a total of %u %s.  The entire central\n\
  directory is %lu (%.8lXh) bytes long, and its offset in bytes from\n";
static ZCONST char Far MultiPartArchive3[] = "\
  the beginning of the zipfile in which it begins is %lu (%.8lXh).\n\n";
static ZCONST char Far NoZipfileComment[] = "  There is no zipfile comment.\n";
static ZCONST char Far ZipfileCommentDesc[] =
  "  The zipfile comment is %u bytes long and contains the following text:\n\n";
static ZCONST char Far ZipfileCommBegin[] =
 "======================== zipfile comment begins ==========================\n";
static ZCONST char Far ZipfileCommEnd[] =
 "========================= zipfile comment ends ===========================\n";
static ZCONST char Far ZipfileCommTrunc2[] =
  "\n  The zipfile comment is truncated.\n";
static ZCONST char Far ZipfileCommTruncMsg[] =
  "\ncaution:  zipfile comment truncated\n";

static ZCONST char Far CentralDirEntry[] =
  "\nCentral directory entry #%lu:\n---------------------------\n\n";
static ZCONST char Far ZipfileStats[] =
  "%lu file%s, %lu bytes uncompressed, %lu bytes compressed:  %s%d.%d%%\n";

/* zi_long() strings */
static ZCONST char Far OS_FAT[] = "MS-DOS, OS/2 or NT FAT";
static ZCONST char Far OS_Amiga[] = "Amiga";
static ZCONST char Far OS_VMS[] = "VMS";
static ZCONST char Far OS_Unix[] = "Unix";
static ZCONST char Far OS_VMCMS[] = "VM/CMS";
static ZCONST char Far OS_AtariST[] = "Atari ST";
static ZCONST char Far OS_HPFS[] = "OS/2 or NT HPFS";
static ZCONST char Far OS_Macintosh[] = "Macintosh HFS";
static ZCONST char Far OS_ZSystem[] = "Z-System";
static ZCONST char Far OS_CPM[] = "CP/M";
static ZCONST char Far OS_TOPS20[] = "TOPS-20";
static ZCONST char Far OS_NTFS[] = "NTFS";
static ZCONST char Far OS_QDOS[] = "SMS/QDOS";
static ZCONST char Far OS_Acorn[] = "Acorn RISC OS";
static ZCONST char Far OS_MVS[] = "MVS";
static ZCONST char Far OS_VFAT[] = "Win32 VFAT";
static ZCONST char Far OS_AtheOS[] = "AtheOS";
static ZCONST char Far OS_BeOS[] = "BeOS";
static ZCONST char Far OS_Tandem[] = "Tandem NSK";
static ZCONST char Far OS_Theos[] = "Theos";
static ZCONST char Far OS_MacDarwin[] = "Mac OS/X (Darwin)";
#ifdef OLD_THEOS_EXTRA
  static ZCONST char Far OS_TheosOld[] = "Theos (Old)";
#endif /* OLD_THEOS_EXTRA */

static ZCONST char Far MthdNone[] = "none (stored)";
static ZCONST char Far MthdShrunk[] = "shrunk";
static ZCONST char Far MthdRedF1[] = "reduced (factor 1)";
static ZCONST char Far MthdRedF2[] = "reduced (factor 2)";
static ZCONST char Far MthdRedF3[] = "reduced (factor 3)";
static ZCONST char Far MthdRedF4[] = "reduced (factor 4)";
static ZCONST char Far MthdImplode[] = "imploded";
static ZCONST char Far MthdToken[] = "tokenized";
static ZCONST char Far MthdDeflate[] = "deflated";
static ZCONST char Far MthdDeflat64[] = "deflated (enhanced-64k)";
static ZCONST char Far MthdDCLImplode[] = "imploded (PK DCL)";
static ZCONST char Far MthdPKRes11[] = "unkn. #11 (PK reserved)";
static ZCONST char Far MthdBZip2[] = "bzipped";

static ZCONST char Far DeflNorm[] = "normal";
static ZCONST char Far DeflMax[] = "maximum";
static ZCONST char Far DeflFast[] = "fast";
static ZCONST char Far DeflSFast[] = "superfast";

static ZCONST char Far ExtraBytesPreceding[] =
  "  There are an extra %ld bytes preceding this file.\n\n";

static ZCONST char Far UnknownNo[] = "unknown (%d)";

static ZCONST char Far LocalHeaderOffset[] =
  "\n  offset of local header from start of archive:     %lu (%.8lXh) bytes\n";
static ZCONST char Far HostOS[] =
  "  file system or operating system of origin:        %s\n";
static ZCONST char Far EncodeSWVer[] =
  "  version of encoding software:                     %u.%u\n";
static ZCONST char Far MinOSCompReq[] =
  "  minimum file system compatibility required:       %s\n";
static ZCONST char Far MinSWVerReq[] =
  "  minimum software version required to extract:     %u.%u\n";
static ZCONST char Far CompressMethod[] =
  "  compression method:                               %s\n";
static ZCONST char Far SlideWindowSizeImplode[] =
  "  size of sliding dictionary (implosion):           %cK\n";
static ZCONST char Far ShannonFanoTrees[] =
  "  number of Shannon-Fano trees (implosion):         %c\n";
static ZCONST char Far CompressSubtype[] =
  "  compression sub-type (deflation):                 %s\n";
static ZCONST char Far FileSecurity[] =
  "  file security status:                             %sencrypted\n";
static ZCONST char Far ExtendedLocalHdr[] =
  "  extended local header:                            %s\n";
static ZCONST char Far FileModDate[] =
  "  file last modified on (DOS date/time):            %s\n";
#ifdef USE_EF_UT_TIME
  static ZCONST char Far UT_FileModDate[] =
    "  file last modified on (UT extra field modtime):   %s %s\n";
  static ZCONST char Far LocalTime[] = "local";
#ifndef NO_GMTIME
  static ZCONST char Far GMTime[] = "UTC";
#endif
#endif /* USE_EF_UT_TIME */
static ZCONST char Far CRC32Value[] =
  "  32-bit CRC value (hex):                           %.8lx\n";
static ZCONST char Far CompressedFileSize[] =
  "  compressed size:                                  %lu bytes\n";
static ZCONST char Far UncompressedFileSize[] =
  "  uncompressed size:                                %lu bytes\n";
static ZCONST char Far FilenameLength[] =
  "  length of filename:                               %u characters\n";
static ZCONST char Far ExtraFieldLength[] =
  "  length of extra field:                            %u bytes\n";
static ZCONST char Far FileCommentLength[] =
  "  length of file comment:                           %u characters\n";
static ZCONST char Far FileDiskNum[] =
  "  disk number on which file begins:                 disk %u\n";
static ZCONST char Far ApparentFileType[] =
  "  apparent file type:                               %s\n";
static ZCONST char Far VMSFileAttributes[] =
  "  VMS file attributes (%06o octal):               %s\n";
static ZCONST char Far AmigaFileAttributes[] =
  "  Amiga file attributes (%06o octal):             %s\n";
static ZCONST char Far UnixFileAttributes[] =
  "  Unix file attributes (%06o octal):              %s\n";
static ZCONST char Far NonMSDOSFileAttributes[] =
  "  non-MSDOS external file attributes:               %06lX hex\n";
static ZCONST char Far MSDOSFileAttributes[] =
  "  MS-DOS file attributes (%02X hex):                  none\n";
static ZCONST char Far MSDOSFileAttributesRO[] =
  "  MS-DOS file attributes (%02X hex):                  read-only\n";
static ZCONST char Far MSDOSFileAttributesAlpha[] =
  "  MS-DOS file attributes (%02X hex):                  %s%s%s%s%s%s%s%s\n";
static ZCONST char Far TheosFileAttributes[] =
  "  Theos file attributes (%04X hex):                 %s\n";

static ZCONST char Far TheosFTypLib[] = "Library     ";
static ZCONST char Far TheosFTypDir[] = "Directory   ";
static ZCONST char Far TheosFTypReg[] = "Sequential  ";
static ZCONST char Far TheosFTypRel[] = "Direct      ";
static ZCONST char Far TheosFTypKey[] = "Keyed       ";
static ZCONST char Far TheosFTypInd[] = "Indexed     ";
static ZCONST char Far TheosFTypR16[] = " 86 program ";
static ZCONST char Far TheosFTypP16[] = "286 program ";
static ZCONST char Far TheosFTypP32[] = "386 program ";
static ZCONST char Far TheosFTypUkn[] = "???         ";

static ZCONST char Far ExtraFieldTrunc[] = "\n\
  error: EF data block (type 0x%04x) size %u exceeds remaining extra field\n\
         space %u; block length has been truncated.\n";
static ZCONST char Far ExtraFields[] = "\n\
  The central-directory extra field contains:";
static ZCONST char Far ExtraFieldType[] = "\n\