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/*-
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)err.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef __STDC__
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#ifndef __linux__
extern char *__progname; /* Program name, from crt0. */
#else /* __linux__ */
/* Eugh! People shouldn't rely on crt0 defining things like this. For
example, linux doesn't define __progname. So each program has to call
err_setprogname() to register its name. */
/* don't define __progname, we're not allowed to use that namespace */
static const char *progname;
#define __progname progname
#endif /* __linux__ */
#ifdef __linux__
/* sane C compiler, so none of this messy __STDC__ guff */
/* sets __progname to point into argv[0] at the right place. Takes
argv[0], and finds where 'the right place' is. */
void err_setprogname(const char *argv0)
{
__progname = strrchr(argv0, '/');
if (__progname==NULL || *__progname==0)
__progname = argv0;
else
__progname++;
}
#else /* ! __linux__ */
#define err_setprogname(x) (void *)0
#endif /* ! __linux__ */
__dead void
#ifdef __STDC__
err(int eval, const char *fmt, ...)
#else
err(eval, fmt, va_alist)
int eval;
const char *fmt;
va_dcl
#endif
{
va_list ap;
#if __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
verr(eval, fmt, ap);
va_end(ap);
}
__dead void
verr(eval, fmt, ap)
int eval;
const char *fmt;
va_list ap;
{
int sverrno;
sverrno = errno;
(void)fprintf(stderr, "%s: ", __progname);
if (fmt != NULL) {
(void)vfprintf(stderr, fmt, ap);
(void)fprintf(stderr, ": ");
}
(void)fprintf(stderr, "%s\n", strerror(sverrno));
exit(eval);
}
__dead void
#if __STDC__
errx(int eval, const char *fmt, ...)
#else
errx(eval, fmt, va_alist)
int eval;
const char *fmt;
va_dcl
#endif
{
va_list ap;
#if __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
verrx(eval, fmt, ap);
va_end(ap);
}
__dead void
verrx(eval, fmt, ap)
int eval;
const char *fmt;
va_list ap;
{
(void)fprintf(stderr, "%s: ", __progname);
if (fmt != NULL)
(void)vfprintf(stderr, fmt, ap);
(void)fprintf(stderr, "\n");
exit(eval);
}
void
#if __STDC__
warn(const char *fmt, ...)
#else
warn(fmt, va_alist)
const char *fmt;
va_dcl
#endif
{
va_list ap;
#if __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
vwarn(fmt, ap);
va_end(ap);
}
void
vwarn(fmt, ap)
const char *fmt;
va_list ap;
{
int sverrno;
sverrno = errno;
(void)fprintf(stderr, "%s: ", __progname);
if (fmt != NULL) {
(void)vfprintf(stderr, fmt, ap);
(void)fprintf(stderr, ": ");
}
(void)fprintf(stderr, "%s\n", strerror(sverrno));
}
void
#ifdef __STDC__
warnx(const char *fmt, ...)
#else
warnx(fmt, va_alist)
const char *fmt;
va_dcl
#endif
{
va_list ap;
#ifdef __STDC__
va_start(ap, fmt);
#else
va_start(ap);
#endif
vwarnx(fmt, ap);
va_end(ap);
}
void
vwarnx(fmt, ap)
const char *fmt;
va_list ap;
{
(void)fprintf(stderr, "%s: ", __progname);
if (fmt != NULL)
(void)vfprintf(stderr, fmt, ap);
(void)fprintf(stderr, "\n");
}
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