2.0.5 problem with variable substitutions

[Todd Pfaff]

I should probably also add that I am only seeing this behaviour when
running 'smbclient -L localhost' on the samba server itself since that is
all I've had the opportunity to test.  Also, only the substitution
variables in the 'root p*exec' lines seem to have any adverse affect in
this particular case.

On Wed, 21 Jul 1999, Todd Pfaff wrote:

> I have a problem with 2.0.5 that did not happen in 2.0.4b or previous
> releases.  I am seeing thousands of these messages in log.smb:
> 
> [1999/07/20 23:44:24, 0] lib/util_str.c:string_sub(1095)
>   ERROR: string overflow by 7 in string_sub(%M, 967)
> 
> and the smbd process seems to be stuck in a tight loop.
> 
> It's caused by the variable substitutions in these lines from smb.conf:
> 
> root preexec  = [ %U != nobody ] && /usr/openwin/bin/sessreg -a -l s/%M -s %d %U
> root postexec = [ %U != nobody ] && /usr/openwin/bin/sessreg -d -l s/%M -s %d %U
> 
> If I comment out these lines, all is well.  If I take out the %M it fails
> on the %d:
> 
> [1999/07/20 23:53:59, 0] lib/util_str.c:string_sub(1095)
>   ERROR: string overflow by 2 in string_sub(%d, 962)
> 
> --
> Todd Pfaff                         \  Email: pfaff at mcmaster.ca
> Computing and Information Services  \ Voice: (905) 525-9140 x22920
> ABB 132                              \  FAX: (905) 528-3773
> McMaster University                   \
> Hamilton, Ontario, Canada  L8S 4M1     \
> 

--
Todd Pfaff                         \  Email: pfaff at mcmaster.ca
Computing and Information Services  \ Voice: (905) 525-9140 x22920
ABB 132                              \  FAX: (905) 528-3773
McMaster University                   \
Hamilton, Ontario, Canada  L8S 4M1     \