From: "H. Peter Anvin" <hpa@zytor.com>
To: Junio C Hamano <junkio@cox.net>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Shell quoting
Date: Thu, 15 Sep 2005 11:44:42 -0700 [thread overview]
Message-ID: <4329C11A.1040302@zytor.com> (raw)
In-Reply-To: <7vy85yahjk.fsf@assigned-by-dhcp.cox.net>
Okay, I'm trying to put together some rules that should work across shells.
For byte values:
0 Hopeless - not representable in C strings
1-31,127 Prefix with ^V if (and only if!) entered at a prompt,
as opposed to passed in the ssh command field
32-126 \-escape all characters except -+_@=:.,/ and
ASCII alphanumerics
128- Don't escape (would have to be done differently
depending on locale, and shouldn't be needed)
Anyone know of a system for which that breaks horribly? The 1-31,127
stuff is iffy, but I just don't know of anything that's more reliable.
Unfortunately \010-style quoting doesn't work in any of the common shells.
-hpa
next prev parent reply other threads:[~2005-09-15 18:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-15 5:50 [PATCH] Remove shell dependency in env.c H. Peter Anvin
2005-09-15 7:58 ` Junio C Hamano
2005-09-15 16:30 ` H. Peter Anvin
2005-09-15 18:44 ` H. Peter Anvin [this message]
2005-09-15 19:01 ` Shell quoting Linus Torvalds
2005-09-15 19:31 ` H. Peter Anvin
2005-09-15 19:50 ` Junio C Hamano
2005-09-15 20:18 ` H. Peter Anvin
2005-09-15 19:35 ` Junio C Hamano
2005-09-15 20:02 ` Linus Torvalds
2005-09-16 19:20 ` Junio C Hamano
2005-09-15 19:33 ` [PATCH] rsh.c env and quoting cleanup, take 2 H. Peter Anvin
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