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From: Stephane Chazelas <stephane.chazelas@gmail.com>
To: Martijn Dekker <martijn@inlv.org>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: [PATCH] make sure internal temp files are user readable and writeable
Date: Mon, 26 Mar 2018 18:00:44 +0100	[thread overview]
Message-ID: <20180326170044.GA10044@chaz.gmail.com> (raw)
In-Reply-To: <581009fe-372c-641a-cf5f-87e6a2a68dbb@inlv.org>

2018-03-26 18:45:23 +0200, Martijn Dekker:
> Here-documents fail if the umask does not allow user reading.
> 
> $ zsh -c $'umask u-r; cat <<EOF\nEOF'
> zsh:1: can't create temp file for here document: permission denied
[...]
> +    mode_t old_umask = umask(0177);
[...]

Thanks. See also 42446
(https://www.zsh.org/mla/workers/2018/msg00252.html)
with other suggested options.

There I mentioned the potential need to block signals between
the time the umask is changed temporarily and when it's restored
(to avoid traps running with the wrong umask (0177 instead of
the user's requested one)).

-- 
Stephane


  reply	other threads:[~2018-03-26 17:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-26 16:45 Martijn Dekker
2018-03-26 17:00 ` Stephane Chazelas [this message]
2018-03-26 17:37   ` Martijn Dekker
2018-03-26 20:32     ` Martijn Dekker
2018-03-27  8:34       ` Peter Stephenson

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