diff options
Diffstat (limited to 'lib/libc/stdio/vswscanf.c')
| -rw-r--r-- | lib/libc/stdio/vswscanf.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/lib/libc/stdio/vswscanf.c b/lib/libc/stdio/vswscanf.c new file mode 100644 index 0000000..a5f0a89 --- /dev/null +++ b/lib/libc/stdio/vswscanf.c @@ -0,0 +1,98 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Donn Seeley at UUNET Technologies, Inc. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)vsscanf.c 8.1 (Berkeley) 6/4/93"; +#endif /* LIBC_SCCS and not lint */ +__FBSDID("FreeBSD: src/lib/libc/stdio/vsscanf.c,v 1.11 2002/08/21 16:19:57 mike Exp "); +#endif +__FBSDID("$FreeBSD$"); + +#include <limits.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> +#include "local.h" + +static int eofread(void *, char *, int); + +static int +eofread(void *cookie, char *buf, int len) +{ + + return (0); +} + +int +vswscanf(const wchar_t * __restrict str, const wchar_t * __restrict fmt, + va_list ap) +{ + FILE f; + mbstate_t mbs; + struct __sFILEX ext; + char *mbstr; + size_t mlen; + int r; + + /* + * XXX Convert the wide character string to multibyte, which + * __vfwscanf() will convert back to wide characters. + */ + if ((mbstr = malloc(wcslen(str) * MB_CUR_MAX + 1)) == NULL) + return (EOF); + memset(&mbs, 0, sizeof(mbs)); + if ((mlen = wcsrtombs(mbstr, &str, SIZE_T_MAX, &mbs)) == (size_t)-1) { + free(mbstr); + return (EOF); + } + f._file = -1; + f._flags = __SRD; + f._bf._base = f._p = (unsigned char *)mbstr; + f._bf._size = f._r = mlen; + f._read = eofread; + f._ub._base = NULL; + f._lb._base = NULL; + f._extra = &ext; + INITEXTRA(&f); + r = __vfwscanf(&f, fmt, ap); + free(mbstr); + + return (r); +} |
