checkpassword_debug is a small tool to aid in the debugging of checkpassword
like tools. checkpassword_debug will try to call a checkpassword tool, and as
argument give itself.

checkpassword_debug [-h] [-v] [-u user] [-g group] [-l login] [-p password]
  [-d] [-c checkpassword] [-R ip ] [-L port] [-C]

-h           displays short help text
-v           increases the verbosity (can be used multiple times)
-u user      switch to user before executing checkpassword
-g group     switct to group before executing checkpassword
-l login     give login to checkpassword as username
-p password  give password to checkpassword as password
-d           do not exit - useful for debugging checkpassword
-c checkpwd  uses checkpwd as checkpassword tool
-R ip        give ip to checkpassword as remote ip
-L port      give port to checkpassword as the local port
-C           (used internally for marking callbacks!)

checkpassword_debug can be used in many different ways, but primary two setups:

1. shell -> checkpassword_debug -> checkpassword (->) checkpassword_debug
2. telnet -> tcpserver -> checkpassword -> checkpassword_debug


Examples for setup 1:

# checkpassword_debug -l test@example.com -p TESTPW -u 89 -g 89

$ checkpassword_debug -l test@example.com

# checkpassword_debug -v -c /usr/src/vpopdev/vchkpw -l test@example.com

# checkpassword_debug -c /bin/checkpassword -l normaluser


Example for setup 2:

$ tcpserver 0.0.0.0 1100 qmail-popup host.na.me vchkpw checkpassword_debug -C

- and telnet to port 1100.

Enjoy!