From: Richard Salz <rich.salz@gmail.com>
To: Clem cole <clemc@ccc.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>,
Noel Chiappa <jnc@mercury.lcs.mit.edu>
Subject: Re: [TUHS] Set-uid shell scripts
Date: Sun, 4 Aug 2019 16:42:34 -0400 [thread overview]
Message-ID: <CAFH29trTYKHnzRZASH1q9yjCTCjxqW0EJUaBHfOtOt5UUbQkhA@mail.gmail.com> (raw)
In-Reply-To: <CAC20D2MFZ=H9CPU3QMWEffFVU0RsXzJFMgJX78addLZ-sm-cKw@mail.gmail.com>
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BSD added the #! "magic number" based on a suggestion from Ken I believe.
Didn't the exec (2) manpage warn about argv[-1] being clobbered until that
was added?
On Sun, Aug 4, 2019, 4:31 PM Clem Cole <clemc@ccc.com> wrote:
>
>
> On Sun, Aug 4, 2019 at 4:18 PM Noel Chiappa <jnc@mercury.lcs.mit.edu>
> wrote:
>
>> Part of the problem is having the kernel involved in starting shell
>> scripts; convenient in some ways, but V6 etc worked fine without that
>> 'feature'.
>>
> That's a tough call. I have mixed opinions about it as a feature. I
> kind of like the user/kernel interface really, really thin and unadorned.
>
> Adding, it certainly made allowing multiple interpreters to be supported
> much easier; but as you say it opens a new can of worms. Given the later
> proliferation of what bwk or Jon Bently once referred too as 'little
> languages' (awk, perl, tcl, and sigh eventually python), it was probably a
> good feature.
>
> But as you said, v6 worked fairly well without it.
>
> Clem
>
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next prev parent reply other threads:[~2019-08-04 20:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-04 20:18 Noel Chiappa
2019-08-04 20:29 ` Clem Cole
2019-08-04 20:42 ` Richard Salz [this message]
2019-08-04 23:58 ` Dave Horsfall
-- strict thread matches above, loose matches on Subject: below --
2019-08-05 0:13 Noel Chiappa
2019-08-04 21:27 Norman Wilson
2019-08-06 8:28 ` jason-tuhs
2019-08-06 9:55 ` arnold
2019-08-06 22:48 ` Dave Horsfall
2019-08-06 22:56 ` ron minnich
2019-08-07 1:21 ` Dave Horsfall
[not found] ` <40c92e85142fe7e3@orthanc.ca>
2019-08-07 21:33 ` Dave Horsfall
2019-08-08 6:39 ` Peter Jeremy
2019-08-07 12:56 ` Chet Ramey
2019-08-07 21:40 ` Dave Horsfall
2019-08-08 5:16 ` Adam Thornton
2019-08-14 5:41 ` Efton Collins
2019-08-04 21:18 Norman Wilson
2019-08-04 7:36 Dave Horsfall
2019-08-04 7:43 ` Alec Muffett
2019-08-04 15:58 ` Noel Chiappa
2019-08-04 16:30 ` Michael Kjörling
2019-08-04 16:48 ` Alec Muffett
2019-08-04 17:48 ` Michael Kjörling
2019-08-04 19:45 ` Alec Muffett
2019-08-04 16:50 ` Rico Pajarola
2019-08-04 7:46 ` arnold
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