history.550

zip压缩

 - vms/vms.c: fixed long standing bug BUFS512 expression - clipping to a
    multiple of 512 is achieved by ANDing with ~511 instead of ~512 [SPC]

5.5e (29 Apr 01):
 - vms/vms.c: added missing -c handling in WriteBuffer() to make the "-b"
    binary piping mode functional [SPC]

5.5f (30 Sep 01):
 - OS2, WIN32: reenable -X "restore ACLs" option (has been broken since
    version 5.42 due to incomplete change by SPC [Michael Ringe, SPC]
 - moved IZVMS specific e.f. decompression from vms/vms.c into extract.c, this
    functionality is now needed for generic VMS_TEXT_CONV feature [SPC]
 - zipinfo.c: fixed 16-bit specific bug in verbose IZVMS e.f. report [SPC]
 - unix/unxcfg.h: fixed setup for GNU/Hurd [Marcus Brinkmann]
 - tandem/tandem.c: fixed copy&paste typo in stat() [<[e-mail]>]
 - vms/cmdline.c: verbatim '%' signs in format specification strings are
    "escaped" by doubling them, to prevent compiler warnings for newest
    DEC (COMPAQ) C versions [Dirk Munk, SPC]
 - tandem/tanunz.c, tandem/tandem.[ch], fileio.c: created Tandem-specific
    version of open_outfile(), moved UNZIP part of zipopen() code into this
    function [SPC]
 - generic: added ZCONST attributes to several function string pointer
    parameters when the function does not modify the string contents [SPC]
 - Contents, README, INSTALL, ToDo, WHERE: documentation updates [SPC]

5.5g (05 Nov 01):
 - win32/Makefile.bc: completed support for guisfx stub and static lib [SPC]
 - vms/vms.c: in find_vms_attrs(), fixed IZVMS ef-block parser which has been
    broken by changes for 5.5f beta [SPC]
 - acorn/acorn.c: fixed missing semicolon in setRISCOSexfield() prototype
    declaration [Andy Wingate]
 - win32/Makefile.bc: removed -q flag for compatibility with older versions
    of Borland C++ Builder [E-Yen Tan]

5.5h (12 Jan 02):
 - man/*.1: modified manpages to be more "friendly" to automatic conversion
    tools into the OpenSource "DocBook" format [Eric S. Raymond];
    tested new manpages and corrected some formatting quirks [SPC]
 - extract.c: corrected size mismatches between format specifiers and actual
    numeric arguments [SPC]
 - msdos/msdos.c: cleanup of token concatenation preprocessor warnings emitted
    by GCC 3.02 [SPC]
 - process.c: moved definition of symbol SPARKID_2 from acorn/riscos.h into
    this file (symbol used by getRISCOSexfield()) [Santiago Vila, SPC]
 - unzip.c, unzip() main function, REENTRANT code: fixed signal handler "leak"
    by saving previous state of all allocated signal handlers and restoring
    them at function exit [Jim Mathies, SPC]
 - unzip.h, unzpriv.h: moved "internal" function return codes (IZ_DIR etc.)
    into the private main header unzpriv.h [SPC]
 - extract.c, fileio.c: extended UNIXBACKUP optional functionality to create
    "numbered" backup filenames, fixed behaviour when backup file already
    exists (-o option switches off numbered backup files and overwrites the
    first backup file when neccessary) [Mauricio Ponzo, SPC]
 - unzpriv.h, fileio.c, process.c: changed ZLSEEK macro into a real function
    seek_zipf() (located in fileio.c); added check of return code to its
    calls; fixed filehandle leak in do_seekable() that occured in case of
    ZLSEEK errors [Miki Shapiro, SPC]
 - wince/intrface.cpp: added SetFileSize() function to preallocate extraction
    file space, as implemented in the win32 port (dummy function for WinCE
    native compiles because availability of system service is unknown) [SPC]
 - funzip.c: changed skope of err() helper function to "static" [Mark Adler]

5.5i (01 Feb 02):
 - acorn/acorn.c: correct dir traversal security fix (Acorn uses '^'as parent
    folder reference); update and enhance the special character translations;
    static printRISCOSexfield() functions must only be declared when its
    definition is active [Darren Salt]
 - unzip.h, unzip.c, man/unzip.1: disabled -: option for Acorn [SPC]
 - amiga/flate.a, amiga/makefile.azt: modified the way of including gbloffs'
    output in the assembler inflate code [Paul Kienitz]
 - gbloffs.c: corrected USE_DEFLATE64 symbol name, added missing type cast to
    CRYPT symbol handling [Paul Kienitz]
 - unix/Makefile: corrected and renamed target(s) for MacOS X [Mark Adler, SPC]
 - acorn/makefile: make does not like recursive macro definitions [Darren Salt]
 - unreduce.c: indented the #error message directive to hide it from pure
    traditional K&R C style preprocessors [Peter Jones, SPC]
 - amiga/filedate.c: exclude time handling code from Zip utility compiles
    (a Zip change) [Paul Kienitz]
 - acorn/GMakeFile: updated machine-specific options, used standard "gcc" as
    command driver for linking [Andy Wingate]
 - unix/unix.c, mapname(): removed extranous opening parentesis from optional
    ACORN_FTYPE_NFS only code [Santiago Vila, SPC]
 - acorn/acorn.c: corrected location of the MimeMap module [Darren Salt]
 - acorn/riscos.c: fixed problem with readdir() sometimes not detecting end-
    of-dir on "RISCOS V4 long directory format" FSs [Darren Salt]
 - msdos/makefile.wat, os2/makefile.os2, win32/Makefile.wat: updated the
    Watcom C support, checked MSDOS builds, added win32 DLL target [SPC]

5.5j (11 Feb 02):
 - acorn/GMakefile, acorn/Contents: made clean target working as expected,
    updated and moved version info of gcc used (Andy Wingate)
 - tandem/make: added support for switching on/off of CRYPT option [Dave Smith]
 - tandem/HISTORY: updated "version of current binaries" info [Dave Smith]
 - tandem/tanunz.c, open_outfile(): removed unneeded fopen redefines [SPC]
 - tandem/tanunz.c, checkdir(): fixed missing closing ')' of FnFilter2 macro
    calls [Dave Smith]
 - LICENSE: clarification that unmodified UnZipSFX stub binaries can be
    distributed as part of SFX Zip archives without any further documentation
    requirements [Christian Spieler, Ian E. Gorman, Greg Roelofs]

5.5 (17 Feb 02):
 - inflate.c, explode.c, globals.h, unzpriv.h: changed type of "extra bits"
    arrays used to build the decoding huffman trees from "ush" into "uch" for
    optimization and adapted corresponding variable types [SPC]
 - tandem/tandem.c: small cosmetic changes to catch up with Zip mods [SPC]
 - unzpriv.h, tandem/tandem.h: removed Zip-specific settings, implemented the
    USE_EF_UT_TIME default setting for both Zip and UnZip in tandem.h, removed
    corresponding entry from unzpriv.h [SPC]
 - LICENSE: refinement of the SFX stub related insertion [Greg Roelofs]
 - windll/windll.rc: updated copyright year [SPC]
 - msdos/makefile.dj1, msdos/makefile.dj2: added missing header dependencies,
    corrected wrong object list for unzipsfx target (only .dj1) [SPC]
 - tandem/tanunz.c, open_outfile(): repaired wrong variable names, added
    "upshifting" of filename before executing system calls [Dave Smith]
 - unzpriv.h, TANDEM setup: define INT_16BIT symbol when compiling in NON WIDE
    mode to get DEFLATE64 option to work [Dave Smith]
 - win32/Makefile.wat: finished "$(OBJS)" -> "$(OBJU) conversion [Paul Kienitz]
 - win32/w32cfg.h: Watcom C requires IZTZ_DEFINESTDGLOBALS setting when using
    the timehandling replacement code from timezone.c [Paul Kienitz]
 - README, unzvers.h: removed BETA notes for public release [SPC]
 - os2/os2.c, SetFileSize(): 16-bit OS/2 needs fake code here [Kai-Uwe Rommel]
 - unzpriv.h: added ZCONST to varmessage() buf arg [Kai-Uwe Rommel, SPC]
 - os2/os2.c: added #ifndef FUNZIP sections to allow inclusion of this module
    in the object modules list for 16-bit fUnZip targets [SPC]
 - os2/makefile.os2: fixed 16-bit targets to include os2f.obj resp. msdosf.obj
    in the fUnZip object modules list [SPC]
 - fileio.c, do_string(): added typecasts in CHEAP_SFX_AUTORUN option code to
    remove signed/unsigned mismatch warnings [Hunter Goatley]

==================

These changes occurred in beta versions 5.5a to 5.5.  This list may have
left out some bugfixes and even some features...void where prohibited, your
mileage may vary, etc., etc.

Christian Spieler