On Sat, 2003-03-22 at 13:41, David E. Fox wrote:
> Well, pkzip can create self-extracting executables, of course. But
> we've had them too for as long as I can remember -- they're callsed
> shell archives. Still you need some way to encrypt the file. On the
> other hand, if the OP wants to be able to extract (cleartext) files,
> why should the archive be encrypted in the first place?
>
> In case people aren't familiar with them, shell archives are really
> kind of neat in that they contain a shell script that extracts the
> files inside the shell script,via what's called 'here' documents (in
> shell, this is a 'file' that's embedded in a script.)
>
> #! /bin/sh
> # sample here document extractor
> cat >extracted-file <<!EOF
> *
> this is a test of the emergency broadcast system this is only a test
>
> !EOF
>
> More recently, we see self-extracting archives where all the (binary)
> data is embedded in the script -- for example, open office's
> installer.
Good one.
Using uuencode/uudecode the problem is solved even for binaries.
The only part missing is the encryption.
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