5b5fa75acf
This has already been done for most files that have the Foundation as the only listed copyright holder. Do it now for files that list multiple copyright holders, but have the Foundation copyright in its own section. Sponsored by: The FreeBSD Foundation
117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
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* All rights reserved.
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*
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* Copyright (c) 2011 The FreeBSD Foundation
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*
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* Portions of this software were developed by David Chisnall
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if 0
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__FBSDID("FreeBSD: src/lib/libc/stdio/vasprintf.c,v 1.16 2002/08/21 16:19:57 mike Exp ");
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#endif
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__FBSDID("$FreeBSD$");
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include "local.h"
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#include "xlocale_private.h"
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int
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vswprintf_l(wchar_t * __restrict s, size_t n, locale_t locale,
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const wchar_t * __restrict fmt, __va_list ap)
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{
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static const mbstate_t initial;
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mbstate_t mbs;
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FILE f = FAKE_FILE;
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char *mbp;
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int ret, sverrno;
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size_t nwc;
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FIX_LOCALE(locale);
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if (n == 0) {
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errno = EINVAL;
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return (-1);
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}
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if (n - 1 > INT_MAX) {
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errno = EOVERFLOW;
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*s = L'\0';
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return (-1);
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}
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f._flags = __SWR | __SSTR | __SALC;
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f._bf._base = f._p = (unsigned char *)malloc(128);
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if (f._bf._base == NULL) {
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errno = ENOMEM;
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*s = L'\0';
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return (-1);
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}
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f._bf._size = f._w = 127; /* Leave room for the NUL */
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ret = __vfwprintf(&f, locale, fmt, ap);
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if (ret < 0) {
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sverrno = errno;
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free(f._bf._base);
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errno = sverrno;
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*s = L'\0';
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return (-1);
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}
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*f._p = '\0';
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mbp = f._bf._base;
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/*
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* XXX Undo the conversion from wide characters to multibyte that
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* fputwc() did in __vfwprintf().
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*/
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mbs = initial;
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nwc = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, locale);
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free(f._bf._base);
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if (nwc == (size_t)-1) {
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errno = EILSEQ;
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*s = L'\0';
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return (-1);
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}
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if (nwc == n) {
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s[n - 1] = L'\0';
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errno = EOVERFLOW;
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return (-1);
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}
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return (ret);
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}
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int
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vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt,
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__va_list ap)
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{
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return vswprintf_l(s, n, __get_locale(), fmt, ap);
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}
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