xref: /freebsd/contrib/openpam/lib/libpam/pam_error.c (revision 3ba4c8c81a28de3e00ccf6d7f92c6f8e58bef456)

/*-
 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
 * Copyright (c) 2004-2011 Dag-Erling Smørgrav
 * All rights reserved.
 *
 * 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.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote
 *    products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>

#include <security/pam_appl.h>
#include <security/openpam.h>

#include "openpam_impl.h"

/*
 * OpenPAM extension
 *
 * Display an error message
 */

int
pam_error(const pam_handle_t *pamh,
	const char *fmt,
	...)
{
	va_list ap;
	char *rsp;
	int r;

	va_start(ap, fmt);
	r = pam_vprompt(pamh, PAM_ERROR_MSG, &rsp, fmt, ap);
	va_end(ap);
	FREE(rsp); /* ignore response */
	return (r);
}

/*
 * Error codes:
 *
 *     !PAM_SYMBOL_ERR
 *	PAM_SYSTEM_ERR
 *	PAM_BUF_ERR
 *	PAM_CONV_ERR
 */

/**
 * The =pam_error function displays an error message through the
 * intermediary of the given PAM context's conversation function.
 *
 * >pam_info
 * >pam_prompt
 * >pam_verror
 */