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 UnZip 2.0 - Zipfile Extract Utility  Samuel H. Smith 09.09.1989

UnZip 2.0 Компактная, легко портируемая утилита для распаковки ZIP архивов.
It is a small Zipfile extract utility. It is written to be as small and portable as possible. Source code is provided in C and Turbo Pascal.



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UnZip Version 2.0, 09-09-89 Zipfile Extract Utility UnZip20.ZIP Copyright (C) 1989 Samuel H. Smith; ALL RIGHTS RESERVED 'UnZip' is a small Zipfile extract utility. It is written to be as small and portable as possible -- ideal as a starting point for handling .ZIP files in non-IBM environments. Source code is provided in C and Turbo Pascal. If you port this program to a non-IBM system, I would appreciate a copy of the ported source and exec files. Usage ----- unz filename[.zip] ;pascal language version unzip filename[.zip] ;C language version Revision history ---------------- 3-3-89 Initial alpha test release. 3-5-89 First fully operational release. Does not implement CRC verification, but should correctly unzip all compression methods. 3-6-89 Corrected end-of-file detection in both shrink and reduce expanders. Resulting files should now always have the correct size. Added ".ZIP" default to unzip.c to match calling conventions of unz.pas. 3-8-89 Moved machine and operating-system specific code to a block starting around line 180. Added code to swap bytes on host machines that store the high order bytes in lower address locations than the low order bytes. 3-15-89 Added CRC checking in UNZIP.C. Speeded operation by about 150%. I'm spending my time on the C version now and don't plan to do any further work on the pascal. If you're using the pascal version please contact me. 9-9-89 Addition of new "un-implode" logic to handle new compression format included with PKZ101. 4-5-90 Modifications to the Turbo Pascal version by John A. McKown . CompuServe ID 72325,1705. These modifications are NOT supported by Samuel Smith! 1. Added CRC checking. 2. Decreased average elapsed time by around 35 percent. This was done by performance analysis done with HotSpotter Version 5.50 by 3QC. Available from The Programmer's Connection. Yes - this was a mini-ad. HotSpotter is GREAT! Mr. Smith's original code is still in this package by his request. LICENSE ======= You may copy and distribute this program freely, provided that: 1) No fee is charged for such copying and distribution, and 2) It is distributed ONLY in its original, unmodified state. If you wish to distribute a modified version of this program, you MUST include the source code. If you modify this program, I would appreciate a copy of the new source code. I am holding the copyright on the source code, so please don't delete my name from the program files or from the documentation. SUPPORT ======= I work very hard to produce a software package of the highest quality and functionality. I try to look into all reported bugs, and will generally fix reported problems within a few days. IN NO EVENT WILL I BE LIABLE TO YOU FOR ANY DAMAGES, INCLUDING ANY LOST PROFITS, LOST SAVINGS OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF YOUR USE OR INABILITY TO USE THE PROGRAM, OR FOR ANY CLAIM BY ANY OTHER PARTY. If you have any questions, bugs, or suggestions, please contact me at: The Tool Shop BBS (602) 279-2673 (FREE LINE, USR 2400) (602) 264-3969 (HST 9600) (602) 270-0239 (HAYES 9600) The latest version is always available for downloading. Enjoy! Samuel H. Smith Author and Sysop of The Tool Shop.