1.\"- 2.\" Copyright (c) 2002 Networks Associates Technology, Inc. 3.\" All rights reserved. 4.\" 5.\" This software was developed for the FreeBSD Project by ThinkSec AS and 6.\" Network Associates Laboratories, the Security Research Division of 7.\" Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 8.\" ("CBOSS"), as part of the DARPA CHATS research program. 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. The name of the author may not be used to endorse or promote 19.\" products derived from this software without specific prior written 20.\" permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" $P4$ 35.\" 36.Dd January 6, 2003 37.Dt PAM_CHAUTHTOK 3 38.Os 39.Sh NAME 40.Nm pam_chauthtok 41.Nd perform password related functions within the PAM framework 42.Sh LIBRARY 43.Lb libpam 44.Sh SYNOPSIS 45.In sys/types.h 46.In security/pam_appl.h 47.Ft int 48.Fn pam_chauthtok "pam_handle_t *pamh" "int flags" 49.Sh DESCRIPTION 50The 51.Nm 52function attempts to change the authentication token 53for the user associated with the pam context specified by the 54.Va pamh 55argument. 56.Pp 57The 58.Va flags 59argument is the binary or of zero or more of the following 60values: 61.Bl -tag -width 18n 62.It Dv PAM_SILENT 63Do not emit any messages. 64.It Dv PAM_CHANGE_EXPIRED_AUTHTOK 65Change only those authentication tokens that have expired. 66.El 67.Pp 68If any other bits are set, 69.Nm 70will return 71.Dv PAM_SYMBOL_ERR . 72.Sh RETURN VALUES 73The 74.Nm 75function returns one of the following values: 76.Bl -tag -width 18n 77.It Bq Er PAM_ABORT 78General failure. 79.It Bq Er PAM_AUTHTOK_DISABLE_AGING 80Authentication token aging disabled. 81.It Bq Er PAM_AUTHTOK_ERR 82Authentication token failure. 83.It Bq Er PAM_AUTHTOK_LOCK_BUSY 84Authentication token lock busy. 85.It Bq Er PAM_AUTHTOK_RECOVERY_ERR 86Failed to recover old authentication token. 87.It Bq Er PAM_BUF_ERR 88Memory buffer error. 89.It Bq Er PAM_CONV_ERR 90Conversation failure. 91.It Bq Er PAM_PERM_DENIED 92Permission denied. 93.It Bq Er PAM_SERVICE_ERR 94Error in service module. 95.It Bq Er PAM_SYMBOL_ERR 96Invalid symbol. 97.It Bq Er PAM_SYSTEM_ERR 98System error. 99.It Bq Er PAM_TRY_AGAIN 100Try again. 101.El 102.Sh SEE ALSO 103.Xr pam 3 , 104.Xr pam_strerror 3 105.Sh STANDARDS 106.Rs 107.%T "X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules" 108.%D "June 1997" 109.Re 110.Sh AUTHORS 111The 112.Nm 113function and this manual page were developed for the FreeBSD Project 114by ThinkSec AS and Network Associates Laboratories, the Security 115Research Division of Network Associates, Inc. under DARPA/SPAWAR 116contract N66001-01-C-8035 117.Pq Dq CBOSS , 118as part of the DARPA CHATS research program. 119