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    The following form allows you to view linux man pages.

    Command:

    pam_chauthtok

    
    
    

    SYNOPSIS

           #include <security/pam_appl.h>
    
           int pam_chauthtok(pam_handle_t *pamh, int flags);
    
    
    

    DESCRIPTION

           The pam_chauthtok function is used to change the authentication token
           for a given user (as indicated by the state associated with the handle
           pamh).
    
           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:
    
           PAM_SILENT
               Do not emit any messages.
    
           PAM_CHANGE_EXPIRED_AUTHTOK
               This argument indicates to the modules that the users
               authentication token (password) should only be changed if it has
               expired. If this argument is not passed, the application requires
               that all authentication tokens are to be changed.
    
    
    

    RETURN VALUES

           PAM_AUTHTOK_ERR
               A module was unable to obtain the new authentication token.
    
           PAM_AUTHTOK_RECOVERY_ERR
               A module was unable to obtain the old authentication token.
    
           PAM_AUTHTOK_LOCK_BUSY
               One or more of the modules was unable to change the authentication
               token since it is currently locked.
    
           PAM_AUTHTOK_DISABLE_AGING
               Authentication token aging has been disabled for at least one of
               the modules.
    
           PAM_PERM_DENIED
               Permission denied.
    
           PAM_SUCCESS
               The authentication token was successfully updated.
    
           PAM_TRY_AGAIN
               Not all of the modules were in a position to update the
               authentication token(s). In such a case none of the user?s
               authentication tokens are updated.
    
           PAM_USER_UNKNOWN
               User unknown to password service.
    
    
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