From: Junio C Hamano <junkio@cox.net>
Date: Thu, 08 Dec 2005 03:29:47 GMT
Subject: Re: [PATCH] Clean up file descriptors when calling hooks.
Message-ID: <7vr78omfkk.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <20051208032428.8591.qmail@science.horizon.com>

linux@horizon.com writes:

> E.g. imagine if I ran gcc -c file.c, and it assigned file.c to fd 0,
> file.h to fd1, and file.o to fd 2.   Then wants to print a warning
> message... right into the middle of the binary.  (Oversimplified
> example, because gcc is actually several separate programs, but
> hopefully you get the idea.)
>
> It's just safer to leave those fds open to a null device.

Overdangerous example.  Do people realize hooks run without any
locking?