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int pam_acct_mgmt(pam_handle_t *pamh, int flags);
The pam_acct_mgmt function is used to determine if the users account is
valid. It checks for authentication token and account expiration and
verifies access restrictions. It is typically called after the user has
The pamh argument is an authentication handle obtained by a prior call
to pam_start(). The flags argument is the binary or of zero or more of
the following values:
Do not emit any messages.
The PAM module service should return PAM_NEW_AUTHTOK_REQD if the
user has a null authentication token.
User account has expired.
The user account is valid but their authentication token is
expired. The correct response to this return-value is to require
that the user satisfies the pam_chauthtok() function before
obtaining service. It may not be possible for some applications to
do this. In such cases, the user should be denied access until such
time as they can update their password.
The authentication token was successfully updated.
User unknown to password service.
pam_start(3), pam_authenticate(3), pam_chauthtok(3), pam_strerror(3),