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From: Richard Miller <miller@hamnavoe.demon.co.uk>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] v8 shell
Date: Sun, 16 Nov 2003 12:21:14 +0000	[thread overview]
Message-ID: <4cfecdf7a036a48ce135771f8ac3c228@hamnavoe.com> (raw)
In-Reply-To: <b7cfe141aa149a25c049c5ae2904f72f@collyer.net>

> I suppose one could write a simple prefix command, taking a file name,
> descriptor number, and command to run:
>
> 	rdwr /mnt/webcookies/http 4 'echo http://www.foo.baz >[1=4]; cat <[0=4]'

Or generalise by adding a '-c command' option to syscall(1):

	syscall -c 'echo http://www.foo.baz >[1=3]; cat <[0=3]' open /mnt/webcookies/http 2

Then you could use it for other things, eg to execute a command as user none:

	syscall -c command write 3 none 4 >[3]/dev/user



  reply	other threads:[~2003-11-16 12:21 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.GSO.4.21.0311131606190.27715-100000@zenon.ceid.upatras.gr>
2003-11-13 16:06 ` Taj Khattra
2003-11-13 17:41   ` rob pike, esq.
2003-11-13 23:44     ` George Michaelson
2003-11-14  0:43       ` rog
2003-11-14  6:59         ` boyd, rounin
2003-11-17 10:26           ` Douglas A. Gwyn
2003-11-17 12:13             ` Charles Forsyth
2003-11-18  9:48               ` Douglas A. Gwyn
2003-11-14 12:04         ` John Murdie
2003-11-14 18:01           ` rog
2003-11-14 19:04             ` boyd, rounin
2003-11-14 19:18               ` rog
2003-11-14 19:31                 ` boyd, rounin
2003-11-14 22:25             ` Roman Shaposhnick
2003-11-16 11:45             ` Richard Miller
2003-11-16 12:01               ` Geoff Collyer
2003-11-16 12:21                 ` Richard Miller [this message]
2003-11-17 20:31                   ` rog
2003-11-16 14:23               ` Russ Cox
2003-11-16 14:35                 ` Richard Miller
2003-11-15 15:03           ` a
     [not found] ` <oprykztjlztsux9g@smtp.borf.com>
2003-11-14  0:41   ` boyd, rounin
2003-11-14 17:51     ` rog
2003-11-14 18:51       ` boyd, rounin
2003-11-17 10:26       ` Douglas A. Gwyn
2003-11-14  7:05   ` boyd, rounin
2003-11-14  8:13 boyd, rounin
2003-11-14 18:12 Richard C Bilson
2003-11-14 19:09 ` rog
2003-11-14 19:12 ` boyd, rounin

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