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