err.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <libgen.h>
#include <libintl.h>
#include <errno.h>
#include "ipsec_util.h"
/* Function exit/warning functions and global variables. */
static const char *progname;
/*
* warncore() is the workhorse of these functions. Everything else has
* a warncore() component in it.
*/
static void
warncore(const char *fmt, va_list args)
{
if (progname == NULL) {
progname = strrchr(getexecname(), '/');
if (progname == NULL)
progname = getexecname();
else
progname++;
}
(void) fputs(progname, stderr);
if (fmt != NULL) {
(void) fputc(':', stderr);
(void) fputc(' ', stderr);
(void) vfprintf(stderr, fmt, args);
}
}
/* Finish a warning with a newline and a flush of stderr. */
static void
warnfinish(void)
{
(void) fputc('\n', stderr);
(void) fflush(stderr);
}
void
vwarnx(const char *fmt, va_list args)
{
warncore(fmt, args);
warnfinish();
}
void
vwarn(const char *fmt, va_list args)
{
int tmperr = errno; /* Capture errno now. */
warncore(fmt, args);
(void) fputc(':', stderr);
(void) fputc(' ', stderr);
(void) fputs(strerror(tmperr), stderr);
warnfinish();
}
/* PRINTFLIKE1 */
void
warnx(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarnx(fmt, args);
va_end(args);
}
/* PRINTFLIKE1 */
void
warn(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarn(fmt, args);
va_end(args);
}
/* PRINTFLIKE2 */
void
err(int status, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarn(fmt, args);
va_end(args);
exit(status);
}
void
verr(int status, const char *fmt, va_list args)
{
vwarn(fmt, args);
exit(status);
}
/* PRINTFLIKE2 */
void
errx(int status, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
vwarnx(fmt, args);
va_end(args);
exit(status);
}
void
verrx(int status, const char *fmt, va_list args)
{
vwarnx(fmt, args);
exit(status);
}