unix2_chkpwd − helper binary that verifies the password of the current user
/sbin/unix2_chkpwd servicename username
unix2_chkpwd is a helper program for applications that verifies the password of the current user. It is not intended to be run directly from the command line and logs a security violation if done so.
It is typically installed setuid root or setgid shadow and called by applications, which only wishes to do an user authentification and nothing more.
requires the following arguments:
The name of the service using unix2_chkpwd. This is required to be one of the services in /etc/pam.d
The name of the user whose password you want to verify.
unix2_chkpwd expects the password via stdin.
unix2_chkpwd has the following return codes:
unix2_chkpwd was inappropriately called from the command line or the password is incorrect.
The password is correct.
Written by Olaf Kirch loosely based on unix_chkpwd by Andrew Morgan
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