checkapoppw - checks APOP password against the file ~/Maildir/.password
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,
If the password is unacceptable, checkapoppw
exits 1. If
is misused, it may instead exit 2. If there is a temporary
problem checking the password, checkapoppw
If the password is acceptable, checkapoppw
consists of one or more arguments.
There are other tools that offer the same interface as checkapoppw
Note that these tools do not follow the getopt
features are controlled through (1) the tool name and (2) environment
checks the APOP password against the content of the file
(not encrypted) in the user's home directory
corresponding to the login name.
may be overidden through the environment variable
Before invoking prog
sets up $USER
, its supplementary groups, its gid, its uid, and
its working directory.
checkpw(8), qmail-popup(8), qmail-pop3d(8)
This manual page was written by Gerrit Pape <firstname.lastname@example.org>, for the
Debian GNU/Linux system.