A massively spiffy yet delicately unobtrusive compression library. (grpc依赖)
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Mark Adler b1c19ca6d8 zlib 1.2.3.1 13 years ago
..
bndsrc zlib 1.2.1 13 years ago
compile.clp zlib 1.2.3 13 years ago
readme.txt zlib 1.2.3 13 years ago
zlib.inc zlib 1.2.3.1 13 years ago

readme.txt

        ZLIB version 1.2.3 for AS400 installation instructions

I) From an AS400 *SAVF file:

1) Unpacking archive to an AS400 save file

On the AS400:

_ Create the ZLIB AS400 library:

CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library')

_ Create a work save file, for example:

CRTSAVF FILE(ZLIB/ZLIBSAVF)

On a PC connected to the target AS400:

_ Unpack the save file image to a PC file "ZLIBSAVF"
_ Upload this file into the save file on the AS400, for example
using ftp in BINARY mode.


2) Populating the ZLIB AS400 source library

On the AS400:

_ Extract the saved objects into the ZLIB AS400 library using:

RSTOBJ OBJ(*ALL) SAVLIB(ZLIB) DEV(*SAVF) SAVF(ZLIB/ZLIBSAVF) RSTLIB(ZLIB)


3) Customize installation:

_ Edit CL member ZLIB/TOOLS(COMPILE) and change parameters if needed,
according to the comments.

_ Compile this member with:

CRTCLPGM PGM(ZLIB/COMPILE) SRCFILE(ZLIB/TOOLS) SRCMBR(COMPILE)


4) Compile and generate the service program:

_ This can now be done by executing:

CALL PGM(ZLIB/COMPILE)



II) From the original source distribution:

1) On the AS400, create the source library:

CRTLIB LIB(ZLIB) TYPE(PROD) TEXT('ZLIB compression API library')

2) Create the source files:

CRTSRCPF FILE(ZLIB/SOURCES) RCDLEN(112) TEXT('ZLIB library modules')
CRTSRCPF FILE(ZLIB/H) RCDLEN(112) TEXT('ZLIB library includes')
CRTSRCPF FILE(ZLIB/TOOLS) RCDLEN(112) TEXT('ZLIB library control utilities')

3) From the machine hosting the distribution files, upload them (with
FTP in text mode, for example) according to the following table:

Original AS400 AS400 AS400 AS400
file file member type description
SOURCES Original ZLIB C subprogram sources
adler32.c ADLER32 C ZLIB - Compute the Adler-32 checksum of a dta strm
compress.c COMPRESS C ZLIB - Compress a memory buffer
crc32.c CRC32 C ZLIB - Compute the CRC-32 of a data stream
deflate.c DEFLATE C ZLIB - Compress data using the deflation algorithm
gzio.c GZIO C ZLIB - IO on .gz files
infback.c INFBACK C ZLIB - Inflate using a callback interface
inffast.c INFFAST C ZLIB - Fast proc. literals & length/distance pairs
inflate.c INFLATE C ZLIB - Interface to inflate modules
inftrees.c INFTREES C ZLIB - Generate Huffman trees for efficient decode
trees.c TREES C ZLIB - Output deflated data using Huffman coding
uncompr.c UNCOMPR C ZLIB - Decompress a memory buffer
zutil.c ZUTIL C ZLIB - Target dependent utility functions
H Original ZLIB C and ILE/RPG include files
crc32.h CRC32 C ZLIB - CRC32 tables
deflate.h DEFLATE C ZLIB - Internal compression state
inffast.h INFFAST C ZLIB - Header to use inffast.c
inffixed.h INFFIXED C ZLIB - Table for decoding fixed codes
inflate.h INFLATE C ZLIB - Internal inflate state definitions
inftrees.h INFTREES C ZLIB - Header to use inftrees.c
trees.h TREES C ZLIB - Created automatically with -DGEN_TREES_H
zconf.h ZCONF C ZLIB - Compression library configuration
zlib.h ZLIB C ZLIB - Compression library C user interface
as400/zlib.inc ZLIB.INC RPGLE ZLIB - Compression library ILE RPG user interface
zutil.h ZUTIL C ZLIB - Internal interface and configuration
TOOLS Building source software & AS/400 README
as400/bndsrc BNDSRC Entry point exportation list
as400/compile.clp COMPILE CLP Compile sources & generate service program
as400/readme.txt README TXT Installation instructions

4) Continue as in I)3).




Notes: For AS400 ILE RPG programmers, a /copy member defining the ZLIB
API prototypes for ILE RPG can be found in ZLIB/H(ZLIB.INC).
Please read comments in this member for more information.

Remember that most foreign textual data are ASCII coded: this
implementation does not handle conversion from/to ASCII, so
text data code conversions must be done explicitely.

Always open zipped files in binary mode.