1 /*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Donn Seeley at UUNET Technologies, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 36 FreeBSD: src/lib/libc/stdio/vswscanf.c,v 1.3 2004/04/07 09:55:05 tjr Exp 37 NetBSD: vswscanf.c,v 1.3 2005/12/02 13:51:22 yamt Exp 38 */ 39 #include <LibConfig.h> 40 #include <sys/EfiCdefs.h> 41 42 #include <limits.h> 43 #include <stdarg.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <wchar.h> 48 #include <sys/types.h> 49 #include "reentrant.h" 50 #include "local.h" 51 52 static int eofread(void *, char *, int); 53 54 static int 55 /*ARGSUSED*/ 56 eofread(void *cookie, char *buf, int len) 57 { 58 return (0); 59 } 60 61 int 62 vswscanf( 63 const wchar_t * __restrict str, 64 const wchar_t * __restrict fmt, 65 va_list ap 66 ) 67 { 68 static const mbstate_t initial = { 0 }; 69 mbstate_t mbs; 70 FILE f; 71 char *mbstr; 72 size_t mlen; 73 int r; 74 const wchar_t *rstr = str; 75 struct __sfileext fext = { { 0 } }; 76 77 /* 78 * XXX Convert the wide character string to multibyte, which 79 * __vfwscanf() will convert back to wide characters. 80 */ 81 if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL) 82 return (EOF); 83 mbs = initial; 84 if ((mlen = wcsrtombs(mbstr, &rstr, SIZE_T_MAX, &mbs)) == (size_t)-1) { 85 free(mbstr); 86 return (EOF); 87 } 88 _FILEEXT_SETUP(&f, &fext); 89 f._file = -1; 90 f._flags = __SRD; 91 f._bf._base = f._p = (unsigned char *)mbstr; 92 f._bf._size = f._r = (int)mlen; 93 f._read = eofread; 94 _UB(&f)._base = NULL; 95 f._lb._base = NULL; 96 r = __vfwscanf_unlocked(&f, fmt, ap); 97 free(mbstr); 98 99 return (r); 100 } 101
