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/* error.c -- error handler for noninteractive utilities
Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by David MacKenzie. */
#include <stdio.h>
#ifdef HAVE_VPRINTF
#if __STDC__
#include <stdarg.h>
#define VA_START(args, lastarg) va_start(args, lastarg)
#else /* !__STDC__ */
#include <varargs.h>
#define VA_START(args, lastarg) va_start(args)
#endif /* !__STDC__ */
#else /* !HAVE_VPRINTF */
#ifdef HAVE_DOPRNT
#define va_alist args
#define va_dcl int args;
#else /* !HAVE_DOPRNT */
#define va_alist a1, a2, a3, a4, a5, a6, a7, a8
#define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;
#endif /* !HAVE_DOPRNT */
#endif /* !HAVE_VPRINTF */
#ifdef STDC_HEADERS
#include <stdlib.h>
#include <string.h>
#else /* !STDC_HEADERS */
void exit ();
#endif /* !STDC_HEADERS */
#ifndef HAVE_STRERROR
static char *
private_strerror (errnum)
int errnum;
{
extern char *sys_errlist[];
extern int sys_nerr;
if (errnum > 0 && errnum <= sys_nerr)
return sys_errlist[errnum];
return "Unknown system error";
}
#define strerror private_strerror
#endif /* !HAVE_STRERROR */
/* Print the program name and error message MESSAGE, which is a printf-style
format string with optional args.
If ERRNUM is nonzero, print its corresponding system error message.
Exit with status STATUS if it is nonzero. */
/* VARARGS */
void
#if defined (HAVE_VPRINTF) && __STDC__
error (int status, int errnum, char *message, ...)
#else /* !HAVE_VPRINTF or !__STDC__ */
error (status, errnum, message, va_alist)
int status;
int errnum;
char *message;
va_dcl
#endif /* !HAVE_VPRINTF or !__STDC__ */
{
extern char *program_name;
#ifdef HAVE_VPRINTF
va_list args;
#endif /* HAVE_VPRINTF */
fprintf (stderr, "%s: ", program_name);
#ifdef HAVE_VPRINTF
VA_START (args, message);
vfprintf (stderr, message, args);
va_end (args);
#else /* !HAVE_VPRINTF */
#ifdef HAVE_DOPRNT
_doprnt (message, &args, stderr);
#else /* !HAVE_DOPRNT */
fprintf (stderr, message, a1, a2, a3, a4, a5, a6, a7, a8);
#endif /* !HAVE_DOPRNT */
#endif /* !HAVE_VPRINTF */
if (errnum)
fprintf (stderr, ": %s", strerror (errnum));
putc ('\n', stderr);
fflush (stderr);
if (status)
exit (status);
}
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