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/* 4.4BSD utility functions for error messages.
Copyright (C) 1995-2024 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <stdarg.h>
#include <err.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <wchar.h>
#define flockfile(s) _IO_flockfile (s)
#define funlockfile(s) _IO_funlockfile (s)
extern char *__progname;
#define VA(call) \
{ \
va_list ap; \
va_start (ap, format); \
call; \
va_end (ap); \
}
void
__vwarnx_internal (const char *format, __gnuc_va_list ap,
unsigned int mode_flags)
{
flockfile (stderr);
__fxprintf (stderr, "%s: ", __progname);
if (format != NULL)
__vfxprintf (stderr, format, ap, mode_flags);
__fxprintf (stderr, "\n");
funlockfile (stderr);
}
void
__vwarn_internal (const char *format, __gnuc_va_list ap,
unsigned int mode_flags)
{
int error = errno;
flockfile (stderr);
if (format != NULL)
{
__fxprintf (stderr, "%s: ", __progname);
__vfxprintf (stderr, format, ap, mode_flags);
__set_errno (error);
__fxprintf (stderr, ": %m\n");
}
else
{
__set_errno (error);
__fxprintf (stderr, "%s: %m\n", __progname);
}
funlockfile (stderr);
}
void
vwarn (const char *format, __gnuc_va_list ap)
{
__vwarn_internal (format, ap, 0);
}
libc_hidden_def (vwarn)
void
vwarnx (const char *format, __gnuc_va_list ap)
{
__vwarnx_internal (format, ap, 0);
}
libc_hidden_def (vwarnx)
void
warn (const char *format, ...)
{
VA (vwarn (format, ap))
}
libc_hidden_def (warn)
void
warnx (const char *format, ...)
{
VA (vwarnx (format, ap))
}
libc_hidden_def (warnx)
void
verr (int status, const char *format, __gnuc_va_list ap)
{
vwarn (format, ap);
exit (status);
}
libc_hidden_def (verr)
void
verrx (int status, const char *format, __gnuc_va_list ap)
{
vwarnx (format, ap);
exit (status);
}
libc_hidden_def (verrx)
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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