* umask for process substitution
@ 2003-02-20 22:41 Paul Lew
2003-02-22 23:36 ` Bart Schaefer
0 siblings, 1 reply; 2+ messages in thread
From: Paul Lew @ 2003-02-20 22:41 UTC (permalink / raw)
To: zsh-users
Is there a way to set umask for temporary file created with =(cmd)? I
am running a setuid program which failed to read the =(cmd) because it
use mode 600:
> ls =(echo foo)
-rw------- 1 root other 4 Feb 20 13:32 /tmp/zsh8PayQ4
> umask
002
TIA.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: umask for process substitution
2003-02-20 22:41 umask for process substitution Paul Lew
@ 2003-02-22 23:36 ` Bart Schaefer
0 siblings, 0 replies; 2+ messages in thread
From: Bart Schaefer @ 2003-02-22 23:36 UTC (permalink / raw)
To: zsh-users
On Feb 20, 2:41pm, Paul Lew wrote:
}
} Is there a way to set umask for temporary file created with =(cmd)?
No, there isn't.
However, because of the order in which zsh creates/removes those temp
files, you can do something like this:
{ f==(cmd); chmod a+r $f; suidprog $f }
That is, the file will persist until the end of the braces (and maybe
longer, depending on the structure of the command).
If your operating system supports /dev/fd/, you might be able to do this:
suidprog =(chmod a+r /dev/fd/1; cmd)
It depends on the implementation of /dev/fd ... it works on Linux, but I
doubt it works on Solaris.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2003-02-20 22:41 umask for process substitution Paul Lew
2003-02-22 23:36 ` Bart Schaefer
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