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OPENPAM_BORROW_CRED(3)   BSD Library Functions Manual   OPENPAM_BORROW_CRED(3)

NAME
     openpam_borrow_cred -- temporarily borrow user credentials

LIBRARY
     Pluggable Authentication Module Library (libpam, -lpam)

SYNOPSIS
     #include <sys/types.h>
     #include <security/pam_appl.h>
     #include <security/openpam.h>

     int
     openpam_borrow_cred(pam_handle_t *pamh, const struct passwd *pwd);

DESCRIPTION
     The openpam_borrow_cred function saves the current credentials and switches to those of the user speci-fied specified
     fied by its pwd argument.  The affected credentials are the effective UID, the effective GID, and the
     group access list.  The original credentials can be restored using openpam_restore_cred(3).

RETURN VALUES
     The openpam_borrow_cred function returns one of the following values:

     [PAM_BUF_ERR]       Memory buffer error.

     [PAM_PERM_DENIED]   Permission denied.

     [PAM_SYSTEM_ERR]    System error.

SEE ALSO
     setegid(2), seteuid(2), setgroups(2), openpam_restore_cred(3), pam(3), pam_strerror(3)

STANDARDS
     The openpam_borrow_cred function is an OpenPAM extension.

AUTHORS
     The openpam_borrow_cred function and this manual page were 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 pro-gram. program.
     gram.

BSD                            December 21, 2007                           BSD