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Re: openat-proc
From: |
Eric Blake |
Subject: |
Re: openat-proc |
Date: |
Mon, 09 May 2011 11:36:51 -0600 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc14 Lightning/1.0b3pre Mnenhy/0.8.3 Thunderbird/3.1.10 |
On 05/09/2011 05:49 AM, Bastien ROUCARIES wrote:
> Hi,
>
> I am trying to modularize openat-proc, in order to create an openat using
> passfd. I have created a test file for openat-proc, and I
> think we could a little bit simplify the test of solaris bug, and drop a
> dependency on same inode.
>
> Instead of comparing /proc/self inode why not trying to open and stat
> /../proc fd.
>
> If the bug is present it will expand to /proc/self/fd//../proc that will not
> be present and stat will return ENOENT
How can you guarantee that /proc/self/fd/../proc does not exist? If fd
is /usr, then it resolves to /usr/../proc which resolves to /proc which
does exist.
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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- openat-proc, Bastien ROUCARIES, 2011/05/09
- Re: openat-proc,
Eric Blake <=