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- From: sip1@ellis.uchicago.edu (Timothy F. Sipples)
- Newsgroups: comp.os.os2.apps
- Subject: REXXShip 1.0 Released: Self-Extracting UUEncode!
- Message-ID: <1992Sep6.025645.5101@midway.uchicago.edu>
- Date: 6 Sep 92 02:56:45 GMT
- Sender: news@uchinews.uchicago.edu (News System)
- Reply-To: sip1@midway.uchicago.edu
- Organization: Dept. of Econ., Univ. of Chicago
- Lines: 40
-
- I have just sent the file rxship10.cmd to ftp-os2.nmsu.edu. It is in
- directory /pub/downloads at present, and it may be retrieved via
- anonymous ftp.
-
- The file rxship10.cmd is a self extracting REXX script which, when
- run, produces REXXShip.Cmd. REXXShip 1.0 is a REXX program which will
- take any binary file as input and produce an ASCII text version which
- is self extracting. Run the resulting ASCII text version through any
- REXX interpreter, including OS/2 2.0's, and you get the binary file
- back.
-
- The "wrapper" extraction code is extremely tiny, adding very little
- overhead. At present REXXShip encoded files are more than double the
- size of the original binary file, but I hope to reduce that increase
- substantially in a forthcoming update.
-
- What is REXXShip useful for? Like UUEncode, XXEncode, ABE, and BOO,
- REXXShip can allow you to send any binary file through a 7-bit ASCII
- text mailing system or online service. However, the advantage is that
- the recipient (if an OS/2 user, in particular) will be able to decode
- the file without any additional utilities.
-
- What about errors? REXXShip encoded files are protected in two ways.
- First, a 16-bit checksum for the file is calculated and compared with
- the recorded checksum when decoding. This error detection is
- reasonably robust. Second, REXXShip encoded files that come up
- "short" simply will not decode properly -- the decoder "wrapper"
- appears, for the most part, at the end of the data, so you know that
- when you get the "Done" message your file is whole.
-
- I look forward to your suggestions for enhancements to this utility.
- Read the documentation accompanying REXXShip for details on where this
- utility is headed. However, I think it will prove useful even in its
- first version.
-
- --
- Timothy F. Sipples | The OS/2 FREQ. ASKED QUESTIONS LIST is avail. from
- sip1@ellis.uchicago.edu | 128.123.35.151, anonymous ftp, in /pub/os2/all/faq.
- Dept. of Econ., Univ. | Or from LISTSERV@BLEKUL11.BITNET (send "HELP").
- of Chicago, 60637 | Family Values Means a Job
-