tsocks locks when passwd searched using ldap

[Cuihtlauac]

Binary package hint: tsocks

I'm behind a firewall and login using Kerberos & LDAP.

My /etc/nsswitch.conf file

passwd: files ldap
group: files ldap
shadow: files ldap

When logged as a ldap/kerberos user (i.e. not a local user) attempting to use tsocks always locks.

 ~>tsocks wget --no-proxy ftp://ftp.ubuntu.com
--2010-11-18 17:07:15-- ftp://ftp.ubuntu.com/
           => `.listing'
Resolving ftp.ubuntu.com... 91.189.88.46, 91.189.92.169, 91.189.92.170, ...
Connecting to ftp.ubuntu.com|91.189.88.46|:21...

Some debugging demonstrates the bug lies in the parser.c file from the tsocks ubuntu/debian patches. In function find_config(), line 46

pw = getpwuid(getuid());

locks (strace & ps shows process is locked waiting for a futex).

BTW, it is actually easier to isolate and reproduce the problem using the attached me.c program. Just compile me.c and run tsocks ./a.out

Basically, tsocks looks for its config file while it is already using the socks proxy. Therefore, getpwuid() looks for the LDAP server through the socks proxy (exceptions are in the config file!).

Stock upstream tsock does not have the problem (no support for ~/.tsocks.conf).

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: tsocks 1.8beta5-9.1
ProcVersionSignature: Ubuntu 2.6.35-23.40-generic 2.6.35.7
Uname: Linux 2.6.35-23-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Nov 18 17:26:32 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/csh
SourcePackage: tsocks