freebsd-skq/lib/libc/stdio/vdprintf.c
theraven 0f6ef690b3 Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter.  Also
adds support for per-thread locales.  This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by:    das (gdtoa changes)
Approved by:    dim (mentor)
2011-11-20 14:45:42 +00:00

71 lines
2.2 KiB
C

/*-
* Copyright (c) 2009 David Schultz <das@FreeBSD.org>
* All rights reserved.
*
* Copyright (c) 2011 The FreeBSD Foundation
* All rights reserved.
* Portions of this software were developed by David Chisnall
* under sponsorship from the FreeBSD Foundation.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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>
__FBSDID("$FreeBSD$");
#include "namespace.h"
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include "un-namespace.h"
#include "local.h"
#include "xlocale_private.h"
int
vdprintf(int fd, const char * __restrict fmt, va_list ap)
{
FILE f = FAKE_FILE;
unsigned char buf[BUFSIZ];
int ret;
if (fd > SHRT_MAX) {
errno = EMFILE;
return (EOF);
}
f._p = buf;
f._w = sizeof(buf);
f._flags = __SWR;
f._file = fd;
f._cookie = &f;
f._write = __swrite;
f._bf._base = buf;
f._bf._size = sizeof(buf);
if ((ret = __vfprintf(&f, __get_locale(), fmt, ap)) < 0)
return (ret);
return (__fflush(&f) ? EOF : ret);
}