config root man

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.\" Copyright (c) 2004-2007 Dag-Erling Smørgrav
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.\" This software was developed for the FreeBSD Project by ThinkSec AS and
.\" Network Associates Laboratories, the Security Research Division of
.\" Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
.\" ("CBOSS"), as part of the DARPA CHATS research program.
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.Dd December 21, 2007
.Dt OPENPAM_BORROW_CRED 3
.Os
.Sh NAME
.Nm openpam_borrow_cred
.Nd temporarily borrow user credentials
.Sh LIBRARY
.Lb libpam
.Sh SYNOPSIS
.In sys/types.h
.In security/pam_appl.h
.In security/openpam.h
.Ft "int"
.Fn openpam_borrow_cred "pam_handle_t *pamh" "const struct passwd *pwd"
.Sh DESCRIPTION
The
.Nm
function saves the current credentials and
switches to those of the user specified by its
.Fa pwd
argument.
The affected credentials are the effective UID, the effective GID, and
the group access list.
The original credentials can be restored using
.Xr openpam_restore_cred 3 .
.Pp
.Sh RETURN VALUES
The
.Nm
function returns one of the following values:
.Bl -tag -width 18n
.It Bq Er PAM_BUF_ERR
Memory buffer error.
.It Bq Er PAM_PERM_DENIED
Permission denied.
.It Bq Er PAM_SYSTEM_ERR
System error.
.El
.Sh SEE ALSO
.Xr setegid 2 ,
.Xr seteuid 2 ,
.Xr setgroups 2 ,
.Xr openpam_restore_cred 3 ,
.Xr pam 3 ,
.Xr pam_strerror 3
.Sh STANDARDS
The
.Nm
function is an OpenPAM extension.
.Sh AUTHORS
The
.Nm
function and this manual page were developed for the
.Fx
Project by ThinkSec AS and Network Associates Laboratories, the
Security Research Division of Network Associates, Inc.\& under
DARPA/SPAWAR contract N66001-01-C-8035
.Pq Dq CBOSS ,
as part of the DARPA CHATS research program.