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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <locale.h>
#include <sys/param.h>
#include <config_admin.h>
#include "mema_util.h"
/*
* The libmemadm routines can return arbitrary error strings. As the
* calling program does not know how long these errors might be,
* the library routines must allocate the required space and the
* calling program must deallocate it.
*
* This routine povides a printf-like interface for creating the
* error strings.
*/
#define FMT_STR_SLOP (16)
void
__fmt_errstring(
char **errstring,
size_t extra_length_hint,
const char *fmt,
...)
{
char *ebuf;
size_t elen;
va_list ap;
/*
* If no errors required or error already set, return.
*/
if ((errstring == NULL) || (*errstring != NULL))
return;
elen = strlen(fmt) + extra_length_hint + FMT_STR_SLOP;
if ((ebuf = (char *)malloc(elen + 1)) == NULL)
return;
va_start(ap, fmt);
(void) vsprintf(ebuf, fmt, ap);
va_end(ap);
if (strlen(ebuf) > elen)
abort();
*errstring = ebuf;
}
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