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 37 #include <sys/cdefs.h> 38 #if 0 39 #if defined(LIBC_SCCS) && !defined(lint) 40 static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93"; 41 #endif /* LIBC_SCCS and not lint */ 42 __FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp "); 43 #endif 44 __FBSDID("$FreeBSD$"); 45 46 #include <limits.h> 47 #include <stdarg.h> 48 #include <stdio.h> 49 #include <stdlib.h> 50 #include <string.h> 51 #include <wchar.h> 52 #include "local.h" 53 54 static int eofread(void *, char *, int); 55 56 static int 57 eofread(void *cookie, char *buf, int len) 58 { 59 60 return (0); 61 } 62 63 int 64 vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt, 65 va_list ap) 66 { 67 static const mbstate_t initial; 68 mbstate_t mbs; 69 FILE f; 70 struct __sFILEX ext; 71 char *mbstr; 72 size_t mlen; 73 int r; 74 75 /* 76 * XXX Convert the wide character string to multibyte, which 77 * __vfwscanf() will convert back to wide characters. 78 */ 79 if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL) 80 return (EOF); 81 mbs = initial; 82 if ((mlen = wcsrtombs(mbstr, &str, SIZE_T_MAX, &mbs)) == (size_t)-1) { 83 free(mbstr); 84 return (EOF); 85 } 86 f._file = -1; 87 f._flags = __SRD; 88 f._bf._base = f._p = (unsigned char *)mbstr; 89 f._bf._size = f._r = mlen; 90 f._read = eofread; 91 f._ub._base = NULL; 92 f._lb._base = NULL; 93 f._extra = &ext; 94 INITEXTRA(&f); 95 r = __vfwscanf(&f, fmt, ap); 96 free(mbstr); 97 98 return (r); 99 } 100