Re: RFC: [PATCH] SCM_CREDS support 2(2)

[Svante Signell]

Updated second patch, reflecting recent changes in the first patch.

On Tue, 2013-10-15 at 10:36 +0200, Svante Signell wrote:
> Hi,
> 
> Patch 2(2) on SCM_CREDS support for GNU/Hurd.
> 
> This patch is optional. kFreeBSD dos not support this case (but Linux
> is).
> 
> This patch implements the last cases in the test code sent to the list
> in September 2013, options <-n> and <-z> see
> http://lists.debian.org/debian-hurd/2013/09/msg00034.html 
> 
> Options:
> no flag:
> -z: send a zero credentials byte as data (used by dbus)
> -n: don't create explicit credentials structure
> 
> 1) Sent credentials and PID are correct:
> ./scm_cred_recv &
> ./scm_cred_send -n
> Linux: OK, only sent ids
> kFreeBSD: nOK; ERROR: bad cmsg header cmhp == NULL, data: OK
> Hurd: same as kFreeBSD
> 
> ./scm_cred_recv -z&
> ./scm_cred_send -nz
> Linux: OK, same as above
> kFreeBSD: nOK; ERROR: bad cmsg header cmhp == NULL, data: OK
> Hurd: OK, sent IDs + groups
> 
> 2) When no credentials structure is sent the behaviour is different:
> Linux:
> -n: received credentials are created
> -zn: received credentials ones are created
> 
> kFreeBSD: 
> -n: ERROR: bad cmsg header cmhp == NULL
> -zn: ERROR: bad cmsg header cmhp == NULL
> 
> Hurd:
> -n: ERROR: bad cmsg header cmhp == NULL
> -zn: received credentials are created
>

scm_creds-sendmsg.c_2.diff
Description: Text Data