freebsd-dev/lib/libc/gen/err.c
John Baldwin c1920558b3 Clean up the vcs ID strings in libc's gen/ directory.
- Move CSRG IDs into __SCCSID().
- When a file has been copied, consistently use 'From: <tag>' for strings
  referencing the version of the source file copied from in the license
  block comment.
- Some of the 'From:' tags were using $FreeBSD$ that was being expanded on
  each checkout.  Fix those to hardcode the FreeBSD tag from the file that
  was copied at the time of the copy.
- When multiple strings are present list them in "chronological" order,
  so CSRG (__SCCSID) before FreeBSD (__FBSDID).  If a file came from
  OtherBSD and contains a CSRG ID from the OtherBSD file, use the order
  CSRG -> OtherBSD -> FreeBSD.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D15831
2018-07-03 17:31:45 +00:00

193 lines
4.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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. 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.
*/
#include <sys/cdefs.h>
__SCCSID("@(#)err.c 8.1 (Berkeley) 6/4/93");
__FBSDID("$FreeBSD$");
#include "namespace.h"
#include <err.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "un-namespace.h"
#include "libc_private.h"
static FILE *err_file; /* file to use for error output */
static void (*err_exit)(int);
/*
* This is declared to take a `void *' so that the caller is not required
* to include <stdio.h> first. However, it is really a `FILE *', and the
* manual page documents it as such.
*/
void
err_set_file(void *fp)
{
if (fp)
err_file = fp;
else
err_file = stderr;
}
void
err_set_exit(void (*ef)(int))
{
err_exit = ef;
}
__weak_reference(_err, err);
void
_err(int eval, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verrc(eval, errno, fmt, ap);
va_end(ap);
}
void
verr(int eval, const char *fmt, va_list ap)
{
verrc(eval, errno, fmt, ap);
}
void
errc(int eval, int code, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verrc(eval, code, fmt, ap);
va_end(ap);
}
void
verrc(int eval, int code, const char *fmt, va_list ap)
{
if (err_file == NULL)
err_set_file(NULL);
fprintf(err_file, "%s: ", _getprogname());
if (fmt != NULL) {
vfprintf(err_file, fmt, ap);
fprintf(err_file, ": ");
}
fprintf(err_file, "%s\n", strerror(code));
if (err_exit)
err_exit(eval);
exit(eval);
}
void
errx(int eval, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
verrx(eval, fmt, ap);
va_end(ap);
}
void
verrx(int eval, const char *fmt, va_list ap)
{
if (err_file == NULL)
err_set_file(NULL);
fprintf(err_file, "%s: ", _getprogname());
if (fmt != NULL)
vfprintf(err_file, fmt, ap);
fprintf(err_file, "\n");
if (err_exit)
err_exit(eval);
exit(eval);
}
__weak_reference(_warn, warn);
void
_warn(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnc(errno, fmt, ap);
va_end(ap);
}
void
vwarn(const char *fmt, va_list ap)
{
vwarnc(errno, fmt, ap);
}
void
warnc(int code, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnc(code, fmt, ap);
va_end(ap);
}
void
vwarnc(int code, const char *fmt, va_list ap)
{
if (err_file == NULL)
err_set_file(NULL);
fprintf(err_file, "%s: ", _getprogname());
if (fmt != NULL) {
vfprintf(err_file, fmt, ap);
fprintf(err_file, ": ");
}
fprintf(err_file, "%s\n", strerror(code));
}
void
warnx(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vwarnx(fmt, ap);
va_end(ap);
}
void
vwarnx(const char *fmt, va_list ap)
{
if (err_file == NULL)
err_set_file(NULL);
fprintf(err_file, "%s: ", _getprogname());
if (fmt != NULL)
vfprintf(err_file, fmt, ap);
fprintf(err_file, "\n");
}