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        Mon, 26 Mar 2018 10:00:45 -0700 (PDT)
Date: Mon, 26 Mar 2018 18:00:44 +0100
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
Message-ID: <20180326170044.GA10044@chaz.gmail.com>
Mail-Followup-To: Martijn Dekker <martijn@inlv.org>,
	Zsh hackers list <zsh-workers@zsh.org>
References: <581009fe-372c-641a-cf5f-87e6a2a68dbb@inlv.org>
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User-Agent: Mutt/1.5.24 (2015-08-30)

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