checkpw(8)						      System Manager's Manual							checkpw(8)

NAME

       checkpw - checks password against the file ~/Maildir/.password

SYNOPSIS

       checkpw prog

DESCRIPTION

       checkpw reads descriptor 3 through end of file and then closes descriptor 3.  There must be at most 512 bytes of data before end of file.

       The  information  supplied on descriptor 3 is a login name terminated by , a password terminated by , a timestamp terminated by , and
       possibly more data.  There are no other restrictions on the form of the login name, password, and timestamp.

       If the password is unacceptable, checkpw exits 1.  If checkpw is misused, it may instead exit 2.  If there is a temporary problem  checking
       the password, checkpw exits 111.

       If the password is acceptable, checkpw runs prog.

       prog consists of one or more arguments.

Compatible tools
       There are other tools that offer the same interface as checkpw

       Note  that  these tools do not follow the getopt interface.  Optional features are controlled through (1) the tool name and (2) environment
       variables.

The password database
       checkpw checks the password against the content of the file Maildir/.password in the user's home directory corresponding to the login name.

       Maildir may be overidden through the environment variable $MAILDIR.

Process-state changes
       Before invoking prog, checkpw sets up $USER, $HOME, $SHELL, its supplementary groups, its gid, its uid, and its working directory.

FILES

       ~/Maildir/.password

SEE ALSO

       checkapoppw(8), qmail-popup(8), qmail-pop3d(8)

AUTHOR

       This manual page was written by Gerrit Pape <pape@smarden.org>, for the Debian GNU/Linux system.

																	checkpw(8)