[apple/libc.git] / stdio / vswprintf-fbsd.c

/*	$OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $	*/

/*
 * Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
 * All rights reserved.
 *
 * 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 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>
#if 0
__FBSDID("FreeBSD: src/lib/libc/stdio/vasprintf.c,v 1.16 2002/08/21 16:19:57 mike Exp ");
#endif
__FBSDID("$FreeBSD: src/lib/libc/stdio/vswprintf.c,v 1.5 2004/04/07 09:55:05 tjr Exp $");

#include "xlocale_private.h"

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <wchar.h>
#include "local.h"

int
vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt,
    __va_list ap)
{
	static const mbstate_t initial;
	mbstate_t mbs;
	FILE f;
	struct __sFILEX ext;
	char *mbp;
	int ret, sverrno;
	size_t conv;
	locale_t loc = __current_locale();

	if (n == 0) {
		errno = EINVAL;
		return (-1);
	}

	f._file = -1;
	f._flags = __SWR | __SSTR | __SALC;
	f._bf._base = f._p = (unsigned char *)malloc(128);
	if (f._bf._base == NULL) {
		errno = ENOMEM;
		return (-1);
	}
	f._bf._size = f._w = 127;		/* Leave room for the NUL */
	f._extra = &ext;
	INITEXTRA(&f);
	ret = __vfwprintf(&f, loc, fmt, ap);
	if (ret < 0) {
		sverrno = errno;
		free(f._bf._base);
		errno = sverrno;
		return (-1);
	}
	*f._p = '\0';
	mbp = (char *)f._bf._base;
	/*
	 * XXX Undo the conversion from wide characters to multibyte that
	 * fputwc() did in __vfwprintf().
	 */
	mbs = initial;
	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
		free(f._bf._base);
		errno = EILSEQ;
		return (-1);
	}
	free(f._bf._base);
	if (conv >= n) {
		s[n - 1] = L'\0';
		errno = EOVERFLOW;
		return (-1);
	}

	return (ret);
}

int
vswprintf_l(wchar_t * __restrict s, size_t n, locale_t loc,
    const wchar_t * __restrict fmt, __va_list ap)
{
	static const mbstate_t initial;
	mbstate_t mbs;
	FILE f;
	struct __sFILEX ext;
	char *mbp;
	int ret, sverrno;
	size_t conv;

	NORMALIZE_LOCALE(loc);
	if (n == 0) {
		errno = EINVAL;
		return (-1);
	}

	f._file = -1;
	f._flags = __SWR | __SSTR | __SALC;
	f._bf._base = f._p = (unsigned char *)malloc(128);
	if (f._bf._base == NULL) {
		errno = ENOMEM;
		return (-1);
	}
	f._bf._size = f._w = 127;		/* Leave room for the NUL */
	f._extra = &ext;
	INITEXTRA(&f);
	ret = __vfwprintf(&f, loc, fmt, ap);
	if (ret < 0) {
		sverrno = errno;
		free(f._bf._base);
		errno = sverrno;
		return (-1);
	}
	*f._p = '\0';
	mbp = (char *)f._bf._base;
	/*
	 * XXX Undo the conversion from wide characters to multibyte that
	 * fputwc() did in __vfwprintf().
	 */
	mbs = initial;
	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
		free(f._bf._base);
		errno = EILSEQ;
		return (-1);
	}
	free(f._bf._base);
	if (conv >= n) {
		s[n - 1] = L'\0';
		errno = EOVERFLOW;
		return (-1);
	}

	return (ret);
}
Commit	Line	Data
224c7076 A	1	/* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */
	2
	3	/*
	4	* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
	5	* All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that the following conditions
	9	* are met:
	10	* 1. Redistributions of source code must retain the above copyright
	11	* notice, this list of conditions and the following disclaimer.
	12	* 2. Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3. The name of the author may not be used to endorse or promote products
	16	* derived from this software without specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
	19	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
	20	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
	21	* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	22	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	23	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
	24	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
	25	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
	26	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
	27	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	28	*/
	29
	30	#include <sys/cdefs.h>
	31	#if 0
	32	__FBSDID("FreeBSD: src/lib/libc/stdio/vasprintf.c,v 1.16 2002/08/21 16:19:57 mike Exp ");
	33	#endif
	34	__FBSDID("$FreeBSD: src/lib/libc/stdio/vswprintf.c,v 1.5 2004/04/07 09:55:05 tjr Exp $");
	35
	36	#include "xlocale_private.h"
	37
	38	#include <errno.h>
	39	#include <stdio.h>
	40	#include <stdlib.h>
	41	#include <wchar.h>
	42	#include "local.h"
	43
	44	int
	45	vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt,
	46	__va_list ap)
	47	{
	48	static const mbstate_t initial;
	49	mbstate_t mbs;
	50	FILE f;
	51	struct __sFILEX ext;
	52	char *mbp;
	53	int ret, sverrno;
	54	size_t conv;
	55	locale_t loc = __current_locale();
	56
	57	if (n == 0) {
	58	errno = EINVAL;
	59	return (-1);
	60	}
	61
	62	f._file = -1;
	63	f._flags = __SWR \| __SSTR \| __SALC;
	64	f._bf._base = f._p = (unsigned char *)malloc(128);
65	if (f._bf._base == NULL) {
66	errno = ENOMEM;
67	return (-1);
68	}
69	f._bf._size = f._w = 127; /* Leave room for the NUL */
70	f._extra = &ext;
71	INITEXTRA(&f);
72	ret = __vfwprintf(&f, loc, fmt, ap);
73	if (ret < 0) {
74	sverrno = errno;
75	free(f._bf._base);
76	errno = sverrno;
77	return (-1);
78	}
79	*f._p = '\0';
80	mbp = (char *)f._bf._base;
81	/*
82	* XXX Undo the conversion from wide characters to multibyte that
83	* fputwc() did in __vfwprintf().
84	*/
85	mbs = initial;
86	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
87	free(f._bf._base);
88	errno = EILSEQ;
89	return (-1);
90	}
91	free(f._bf._base);
92	if (conv >= n) {
93	s[n - 1] = L'\0';
94	errno = EOVERFLOW;
95	return (-1);
96	}
97
98	return (ret);
99	}
100
101	int
102	vswprintf_l(wchar_t * __restrict s, size_t n, locale_t loc,
103	const wchar_t * __restrict fmt, __va_list ap)
104	{
105	static const mbstate_t initial;
106	mbstate_t mbs;
107	FILE f;
108	struct __sFILEX ext;
109	char *mbp;
110	int ret, sverrno;
111	size_t conv;
112
113	NORMALIZE_LOCALE(loc);
114	if (n == 0) {
115	errno = EINVAL;
116	return (-1);
117	}
118
119	f._file = -1;
120	f._flags = __SWR \| __SSTR \| __SALC;
121	f._bf._base = f._p = (unsigned char *)malloc(128);
122	if (f._bf._base == NULL) {
123	errno = ENOMEM;
124	return (-1);
125	}
126	f._bf._size = f._w = 127; /* Leave room for the NUL */
127	f._extra = &ext;
128	INITEXTRA(&f);
129	ret = __vfwprintf(&f, loc, fmt, ap);
130	if (ret < 0) {
131	sverrno = errno;
132	free(f._bf._base);
133	errno = sverrno;
134	return (-1);
135	}
136	*f._p = '\0';
137	mbp = (char *)f._bf._base;
138	/*
139	* XXX Undo the conversion from wide characters to multibyte that
140	* fputwc() did in __vfwprintf().
141	*/
142	mbs = initial;
143	if ((conv = mbsrtowcs_l(s, (const char **)&mbp, n, &mbs, loc)) == (size_t)-1) {
144	free(f._bf._base);
145	errno = EILSEQ;
146	return (-1);
147	}
148	free(f._bf._base);
149	if (conv >= n) {
150	s[n - 1] = L'\0';
151	errno = EOVERFLOW;
152	return (-1);
153	}
154
155	return (ret);
156	}