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
| 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
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34__FBSDID("$FreeBSD: head/lib/libc/stdio/vswprintf.c 122105 2003-11-05 08:20:45Z tjr $");
| 34__FBSDID("$FreeBSD: head/lib/libc/stdio/vswprintf.c 128002 2004-04-07 09:55:05Z tjr $");
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35 36#include <errno.h> 37#include <stdio.h> 38#include <stdlib.h> 39#include <wchar.h> 40#include "local.h" 41 42int 43vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt, 44 __va_list ap) 45{
| 35 36#include <errno.h> 37#include <stdio.h> 38#include <stdlib.h> 39#include <wchar.h> 40#include "local.h" 41 42int 43vswprintf(wchar_t * __restrict s, size_t n, const wchar_t * __restrict fmt, 44 __va_list ap) 45{
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| 46 static const mbstate_t initial; 47 mbstate_t mbs;
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46 FILE f; 47 struct __sFILEX ext; 48 char *mbp; 49 int ret, sverrno; 50 51 if (n == 0) { 52 errno = EINVAL; 53 return (-1); 54 } 55 56 f._file = -1; 57 f._flags = __SWR | __SSTR | __SALC; 58 f._bf._base = f._p = (unsigned char *)malloc(128); 59 if (f._bf._base == NULL) { 60 errno = ENOMEM; 61 return (-1); 62 } 63 f._bf._size = f._w = 127; /* Leave room for the NUL */ 64 f._extra = &ext; 65 INITEXTRA(&f); 66 ret = __vfwprintf(&f, fmt, ap); 67 if (ret < 0) { 68 sverrno = errno; 69 free(f._bf._base); 70 errno = sverrno; 71 return (-1); 72 } 73 *f._p = '\0'; 74 mbp = f._bf._base; 75 /* 76 * XXX Undo the conversion from wide characters to multibyte that 77 * fputwc() did in __vfwprintf(). 78 */
| 48 FILE f; 49 struct __sFILEX ext; 50 char *mbp; 51 int ret, sverrno; 52 53 if (n == 0) { 54 errno = EINVAL; 55 return (-1); 56 } 57 58 f._file = -1; 59 f._flags = __SWR | __SSTR | __SALC; 60 f._bf._base = f._p = (unsigned char *)malloc(128); 61 if (f._bf._base == NULL) { 62 errno = ENOMEM; 63 return (-1); 64 } 65 f._bf._size = f._w = 127; /* Leave room for the NUL */ 66 f._extra = &ext; 67 INITEXTRA(&f); 68 ret = __vfwprintf(&f, fmt, ap); 69 if (ret < 0) { 70 sverrno = errno; 71 free(f._bf._base); 72 errno = sverrno; 73 return (-1); 74 } 75 *f._p = '\0'; 76 mbp = f._bf._base; 77 /* 78 * XXX Undo the conversion from wide characters to multibyte that 79 * fputwc() did in __vfwprintf(). 80 */
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79 if (mbsrtowcs(s, (const char **)&mbp, n, NULL) == (size_t)-1) {
| 81 mbs = initial; 82 if (mbsrtowcs(s, (const char **)&mbp, n, &mbs) == (size_t)-1) {
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80 free(f._bf._base); 81 errno = EILSEQ; 82 return (-1); 83 } 84 free(f._bf._base); 85 if (s[n - 1] != L'\0') { 86 s[n - 1] = L'\0'; 87 errno = EOVERFLOW; 88 return (-1); 89 } 90 91 return (ret); 92}
| 83 free(f._bf._base); 84 errno = EILSEQ; 85 return (-1); 86 } 87 free(f._bf._base); 88 if (s[n - 1] != L'\0') { 89 s[n - 1] = L'\0'; 90 errno = EOVERFLOW; 91 return (-1); 92 } 93 94 return (ret); 95}
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