From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: capset() capget() syscalls
Date: Wed, 5 Sep 2012 23:41:46 -0400 [thread overview]
Message-ID: <20120906034146.GB27715@brightrain.aerifal.cx> (raw)
In-Reply-To: <20120906032811.GA45295@intma.in>
On Wed, Sep 05, 2012 at 11:28:11PM -0400, Kurt H Maier wrote:
> On Wed, Sep 05, 2012 at 11:20:13PM -0400, Rich Felker wrote:
> >
> > Thanks for the input, but I don't think it's quite that clear-cut and
> > I don't have a good answer. There should be some way to access
> > capabilities without needing an ugly library which allocates dynamic
> > memory to report the current capability set (yes, libcap is THAT bad),
> > but the sys/capabilities.h interfaces are also a complete mess...
> >
>
> Why not replace libcap instead of doing this in musl?
That's kind of the direction I was thinking. And the "portable" (to
all known Linux libcs) way to do this would be using <sys/syscall.h>
and SYS_capset/SYS_capget to implement such a library, rather than
having special-case code to do X on glibc and Y on musl...
Alternatively, if the kernel and glibc folks could agree (or at least
the glibc folks), we could develop a new sane API for exposing
capabilities from libc instead of with a third-party library.
Rich
next prev parent reply other threads:[~2012-09-06 3:41 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-27 11:51 igmar
2012-09-05 6:19 ` Rich Felker
2012-09-05 9:28 ` Igmar Palsenberg
2012-09-05 14:24 ` Rich Felker
2012-09-05 17:01 ` Justin Cormack
2012-09-06 3:04 ` Rich Felker
2012-09-06 3:10 ` John Spencer
2012-09-06 3:20 ` Rich Felker
2012-09-06 3:28 ` Kurt H Maier
2012-09-06 3:41 ` Rich Felker [this message]
2012-09-06 4:41 ` Kurt H Maier
2012-09-06 8:22 ` Justin Cormack
2012-09-06 9:28 ` Szabolcs Nagy
2012-09-06 14:23 ` Rich Felker
2012-09-07 4:56 ` Rich Felker
2012-09-08 16:02 ` Justin Cormack
2012-09-08 22:14 ` Rich Felker
2012-09-09 20:04 ` Justin Cormack
2012-09-09 20:14 ` Rich Felker
2012-09-09 21:13 ` James Cloos
2012-09-09 21:55 ` Rich Felker
2012-09-09 22:12 ` Justin Cormack
2012-09-09 22:29 ` Rich Felker
2012-09-09 22:37 ` Justin Cormack
2012-09-10 15:07 ` James Cloos
2012-09-08 21:25 ` Justin Cormack
2012-09-08 22:15 ` Rich Felker
2012-09-08 23:56 ` Rich Felker
2012-09-09 0:21 ` Rich Felker
2012-09-09 8:21 ` Justin Cormack
2012-09-09 19:40 ` Justin Cormack
2012-09-09 21:02 ` Rich Felker
2012-09-09 21:07 ` Justin Cormack
2012-09-09 21:23 ` Justin Cormack
2012-09-09 21:31 ` Justin Cormack
2012-09-09 21:58 ` Rich Felker
2012-09-09 22:14 ` Justin Cormack
2012-09-15 1:54 ` Rich Felker
2012-09-16 14:13 ` Justin Cormack
2012-09-17 2:27 ` Rich Felker
2012-09-06 11:47 ` Igmar Palsenberg
2012-09-06 11:36 ` Igmar Palsenberg
2012-09-06 14:11 ` Rich Felker
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