Announcement

**G�nther Weber** · 01.02.2001, 21:28

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Zu WinZip ( <a href="http://www.winzip.de">www.winzip.de</a> ) gibt es eine
Kommandozeilenerweiterung, mit der man so einiges machen kann. Dann hab ich mal
irgendwo eine ZLIB heruntergeladen, finde die Adresse aber nicht mehr. Hier die
ReadMe-Datei, ein paar Links hab ich ausprobiert - aber ohne Erfolg.
zlib 1.0.4 is a general purpose data compression library. All the code 
is reentrant (thread safe). The data format used by the zlib library 
is described by RFCs (Request for Comments) 1950 to 1952 in the files  
ftp://ds.internic.net/rfc/rfc1950.txt (zlib format), rfc1951.txt (deflate 
format) and rfc1952.txt (gzip format). These documents are also available in 
other formats from ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.html 
 
All functions of the compression library are documented in the file 
zlib.h. A usage example of the library is given in the file example.c 
which also tests that the library is working correctly. Another 
example is given in the file minigzip.c. The compression library itself 
is composed of all source files except example.c and minigzip.c. 
 
To compile all files and run the test program, follow the instructions 
given at the top of Makefile. In short "make test; make install" 
should work for most machines. For MSDOS, use one of the special 
makefiles such as Makefile.msc; for VMS, use Make_vms.com or descrip.mms. 
 
Questions about zlib should be sent to <[email protected]> or, 
if this fails, to the addresses given below in the Copyright section. 
The zlib home page is http://quest.jpl.nasa.gov/zlib/ 
 
The changes made in version 1.0.4 are documented in the file ChangeLog. 
The main changes since 1.0.3 are: 
 
- In very rare conditions, deflate(s, Z_FINISH) could fail to produce an EOF 
bit, so the decompressor could decompress all the correct data but went 
on to attempt decompressing extra garbage data. This affected minigzip too. 
- zlibVersion and gzerror return const char* (needed for DLL) 
- port to RISCOS (no fdopen, no multiple dots, no unlink, no fileno) 
 
 
A Perl interface to zlib written by Paul Marquess <[email protected]> 
is in the CPAN (Comprehensive Perl Archive Network) sites, such as: 
ftp://ftp.cis.ufl.edu/pub/perl/CPAN/modules/by-module/Compress/Compress-Zlib* 
 
 
Notes for some targets: 
 
- For Turbo C the small model is supported only with reduced performance to 
avoid any far allocation; it was tested with -DMAX_WBITS=11 -DMAX_MEM_LEVEL=3 
 
- For 64-bit Iris, deflate.c must be compiled without any optimization. 
With -O, one libpng test fails. The test works in 32 bit mode (with 
the -32 compiler flag). The compiler bug has been reported to SGI. 
 
- zlib doesn't work with gcc 2.6.3 on a DEC 3000/300LX under OSF/1 2.1  
it works when compiled with cc. 
 
- zlib doesn't work on HP-UX 9.05 with one cc compiler (the one not 
accepting the -O option). It works with the other cc compiler. 
 
- To build a Windows DLL version, include in a DLL project zlib.def, zlib.rc 
and all .c files except example.c and minigzip.c; compile with -DZLIB_DLL 
For help on building a zlib DLL, contact Alessandro Iacopetti 
<[email protected]> http://lisa.unial.it/iaco , 
or contact Brad Clarke <[email protected]>. 
 
- gzdopen is not supported on RISCOS 
 
 
Acknowledgments: 
 
The deflate format used by zlib was defined by Phil Katz. The deflate 
and zlib specifications were w

**G�nther Weber** · 01.02.2001, 21:30

Die funktioniert: ftp://ftp.uu.net/graphics/png/documents/zlib/zdoc-index.htm

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Brauche Zip-File entpack und pack Routinen

Brauche Zip-File entpack und pack Routinen

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