[lkml]   [2003]   [Jul]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: kernel bug in socketpair()
On Mer, 2003-07-23 at 17:56, Glenn Fowler wrote:
> you can eliminate the security implications for all fd types by
> simply translating
> open("/dev/fd/N",...)
> to
> dup(atoi(N))
> w.r.t. fd N in the current process

This has very different semantics. Consider lseek().

> otherwise there is a bug in the /dev/fd/N -> /proc/self/fd/N implementation
> and /dev/fd/N should be separated out to its (original) dup(atoi(N))
> semantics

I don't see a bug. I see differing behaviour between Linux and BSD on a
completely non standards defined item. Also btw nobody ever really wrote
a /dev/fd/ for Linux - it was just a byproduct of the proc stuff someone
noticed. I guess someone could write a Plan-9 style dev/fd or devfdfs
for Linux if they wanted.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:47    [W:0.065 / U:2.856 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site