vcdir converts a .dir_control file into a mysql dir_control table. 

Compile line example for gnu/linux:

Compile:
gcc -I.. -I/usr/include/mysql -g -O2 -Wall -c vcdir.c

Link:
gcc -g -O2 -Wall -o vcdir vcdir.o ../libvpopmail.a -L/usr/lib/mysql -lmysqlclient -lz -lnsl -lcrypt -lm


Example on how to use it:

./vcdir domainname.com

In the above example vcdir converted a domain named "domainname.com"


To check if it worked, use the mysql command line interface.

mysql -uroot -p
<enter your root password>
use vpopmail;
select * from dir_control where domain = "domainname.com";

It should show data. The second column is the current number
of users on your system.