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.\" NAI Labs, the Security Research Division of Network Associates, Inc. 7.\" under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 8.\" 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: //depot/projects/openpam/doc/man/pam_chauthtok.3#12 $ 35.\" 36.Dd May 2, 2002 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 security/pam_appl.h 46.Ft int 47.Fn pam_chauthtok "pam_handle_t *pamh" "int flags" 48.Sh DESCRIPTION 49The 50.Nm 51function attempts to change the authentication token 52for the user associated with the pam context specified by the 53.Va pamh 54argument. 55.Pp 56The 57.Va flags 58argument is the binary or of zero or more of the following 59values: 60.Bl -tag -width 18n 61.It Dv PAM_SILENT 62Do not emit any messages. 63.It Dv PAM_CHANGE_EXPIRED_AUTHTOK 64Change only those authentication tokens that have expired. 65.El 66If any other bits are set, 67.Nm 68will return 69.Dv PAM_SYMBOL_ERR . 70.Sh RETURN VALUES 71The 72.Nm 73function returns one of the following values: 74.Bl -tag -width 18n 75.It Bq Er PAM_ABORT 76General failure. 77.It Bq Er PAM_AUTHTOK_DISABLE_AGING 78Authentication token aging disabled. 79.It Bq Er PAM_AUTHTOK_ERR 80Authentication token failure. 81.It Bq Er PAM_AUTHTOK_LOCK_BUSY 82Authentication token lock busy. 83.It Bq Er PAM_AUTHTOK_RECOVERY_ERR 84Failed to recover old authentication token. 85.It Bq Er PAM_BUF_ERR 86Memory buffer error. 87.It Bq Er PAM_CONV_ERR 88Conversation failure. 89.It Bq Er PAM_PERM_DENIED 90Permission denied. 91.It Bq Er PAM_SERVICE_ERR 92Error in service module. 93.It Bq Er PAM_SYMBOL_ERR 94Invalid symbol. 95.It Bq Er PAM_SYSTEM_ERR 96System error. 97.It Bq Er PAM_TRY_AGAIN 98Try again. 99.El 100.Sh SEE ALSO 101.Xr pam 3 , 102.Xr pam_strerror 3 103.Sh STANDARDS 104.Rs 105.%T "X/Open Single Sign-On Service (XSSO) - Pluggable Authentication Modules" 106.%D "June 1997" 107.Re 108.Sh AUTHORS 109The 110.Nm 111function and this manual page were developed for the FreeBSD Project 112by ThinkSec AS and NAI Labs, the Security Research Division of Network 113Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 114.Pq Dq CBOSS , 115as part of the DARPA CHATS research program. 116