checkpw-1.03 is a simple and flexible checkpassword interface package.

checkpw checks password which is stored in a file in the Maildir directory. The file has read and write permissions to the user only. checkpw checks real user's password.

Before invoking following program, checkpw and checkapoppw set up $USER, $EXT, $HOME, $SHELL, its supplementary groups, its gid, its uid, and its working directory.

INSTALL says how to set up.

CHANGES says what was changed.

The code is in the public domain.

The original checkpassword program is written by D.J.Bernstein:

OHIRA, Shinya <>
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