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/* err.c --- 4.4BSD utility functions for error messages.
Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <stdarg.h>
#include <err.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
extern char *__progname;
#define VA(call) \
{ \
va_list ap; \
va_start (ap, format); \
call; \
va_end (ap); \
}
void
vwarnx (const char *format, __gnuc_va_list ap)
{
if (__progname)
fprintf (stderr, "%s: ", __progname);
if (format)
vfprintf (stderr, format, ap);
putc ('\n', stderr);
}
void
vwarn (const char *format, __gnuc_va_list ap)
{
int error = errno;
if (__progname)
fprintf (stderr, "%s: ", __progname);
if (format)
{
vfprintf (stderr, format, ap);
fputs (": ", stderr);
}
fprintf (stderr, "%s\n", strerror (error));
}
void
warn (const char *format, ...)
{
VA (vwarn (format, ap))
}
void
warnx (const char *format, ...)
{
VA (vwarnx (format, ap))
}
void
verr (int status, const char *format, __gnuc_va_list ap)
{
vwarn (format, ap);
exit (status);
}
void
verrx (int status, const char *format, __gnuc_va_list ap)
{
vwarnx (format, ap);
exit (status);
}
void
err (int status, const char *format, ...)
{
VA (verr (status, format, ap))
}
void
errx (int status, const char *format, ...)
{
VA (verrx (status, format, ap))
}
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