Bug 520

Summary:	/usr/bin/logname breaks with log_input/log_output functionality
Product:	Sudo	Reporter:	dwelborn
Component:	Sudo	Assignee:	Todd C. Miller <Todd.Miller>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	low
Version:	1.7.6
Hardware:	HP
OS:	Linux

Description dwelborn 2011-10-31 11:08:11 MDT

sudo is from sudo-1.7.6p2-0.2.2.1 RPM 
logname is coreutils-6.12-32.24.1 RPM 
RPMS packaged by Novell for SLES11 SP1 x86_64

In testing log_input & log_output, I noticed that (when logging enabled)
I get the following error:

# logname
logname: no login name

It does not matter whether logging is enabled via the Defualt or the Tag_Spec...  if any logging occurs, logname cannot determine the user who logged-in.


(just to be explicit, properly working examples would look like so):

login: operator
password: ********

operator:~$ sudo su 
root:~# logname
operator

root:~# exit
operator:~$ sudo su -
root:~# logname
operator

root:~# exit
operator:~$ sudo logname
operator

Comment 1 Todd C. Miller 2011-10-31 11:12:45 MDT

You need to update to sudo 1.8.3 which has support for updating the utmp file.

Comment 2 dwelborn 2011-10-31 11:17:41 MDT

thanks for the quick response

would the patch used to resolve this in 1.8.x, work in 1.7.x ?
... or is it 1.8 functionality only ?

Comment 3 Todd C. Miller 2011-10-31 11:27:22 MDT

It is 1.8.x functionality only.  The 1.7.x branch only receives bug fixes and I consider utmp handling to be a feature, not a bug fix.  It is not impossible to backport, but it is not entirely trivial either.