checkapoppw(8)

NAME

   checkapoppw - checks APOP password against the file ~/Maildir/.password

SYNOPSIS

   checkapoppw prog

DESCRIPTION

   checkapoppw  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
   \0, a password terminated by \0, a  timestamp  terminated  by  \0,  and
   possibly more data.  There are no other restrictions on the form of the
   login name, password, and timestamp.

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

   If the password is acceptable, checkapoppw runs prog.

   prog consists of one or more arguments.

Compatible tools

   There are other tools that offer the same interface as checkapoppw

   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

   checkapoppw checks the APOP password against the content  of  the  file
   Maildir/.password   (not   encrypted)  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, checkapoppw sets up  $USER,  $HOME,  $SHELL,  its
   supplementary groups, its gid, its uid, and its working directory.

FILES

   ~/Maildir/.password

SEE ALSO

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

AUTHOR

   This manual page was written by Gerrit Pape <[email protected]>, for the
   Debian GNU/Linux system.

                                                            checkapoppw(8)

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