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 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 #if 0 35 #if defined(LIBC_SCCS) && !defined(lint) 36 static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93"; 37 #endif /* LIBC_SCCS and not lint */ 38 __FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp "); 39 #endif 40 __FBSDID("$FreeBSD$"); 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 "local.h" 49 50 static int eofread(void *, char *, int); 51 52 static int 53 eofread(void *cookie, char *buf, int len) 54 { 55 56 return (0); 57 } 58 59 int 60 vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt, 61 va_list ap) 62 { 63 static const mbstate_t initial; 64 mbstate_t mbs; 65 FILE f = FAKE_FILE; 66 char *mbstr; 67 size_t mlen; 68 int r; 69 const wchar_t *strp; 70 71 /* 72 * XXX Convert the wide character string to multibyte, which 73 * __vfwscanf() will convert back to wide characters. 74 */ 75 if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL) 76 return (EOF); 77 mbs = initial; 78 strp = str; 79 if ((mlen = wcsrtombs(mbstr, &strp, SIZE_T_MAX, &mbs)) == (size_t)-1) { 80 free(mbstr); 81 return (EOF); 82 } 83 f._flags = __SRD; 84 f._bf._base = f._p = (unsigned char *)mbstr; 85 f._bf._size = f._r = mlen; 86 f._read = eofread; 87 r = __vfwscanf(&f, fmt, ap); 88 free(mbstr); 89 90 return (r); 91 } 92