diff --git a/libc/stdio/floatio.h b/libc/stdio/floatio.h
new file mode 100644
index 0000000..9769030
--- /dev/null
+++ b/libc/stdio/floatio.h
@@ -0,0 +1,58 @@
+/*	$OpenBSD: floatio.h,v 1.4 2008/09/07 20:36:08 martynas Exp $	*/
+
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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. 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.
+ */
+
+/*
+ * Floating point scanf/printf (input/output) definitions.
+ */
+
+/* 11-bit exponent (VAX G floating point) is 308 decimal digits */
+#define	MAXEXP		308
+/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */
+#define	MAXFRACT	39
+
+/*
+ * MAXEXPDIG is the maximum number of decimal digits needed to store a
+ * floating point exponent in the largest supported format.  It should
+ * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point
+ * conversions are supported, ceil(log10(LDBL_MAX_EXP)).  But since it
+ * is presently never greater than 5 in practice, we fudge it.
+ */
+#define	MAXEXPDIG	6
+#if LDBL_MAX_EXP > 999999
+#error "floating point buffers too small"
+#endif
+
+char *__hdtoa(double, const char *, int, int *, int *, char **);
+char *__hldtoa(long double, const char *, int, int *, int *, char **);
+char *__ldtoa(long double *, int, int, int *, int *, char **);
diff --git a/libc/stdio/local.h b/libc/stdio/local.h
index 7be5a7c..575a428 100644
--- a/libc/stdio/local.h
+++ b/libc/stdio/local.h
@@ -147,11 +147,7 @@
 #define __SNPT 0
 #define __SOPT 0
 
-#if defined(__cplusplus)
-#define _EXT(fp) reinterpret_cast<__sfileext*>((fp)->_ext._base)
-#else
-#define _EXT(fp) ((struct __sfileext *)((fp)->_ext._base))
-#endif
+#define _EXT(fp) __BIONIC_CAST(reinterpret_cast, struct __sfileext*, (fp)->_ext._base)
 
 #define _UB(fp) _EXT(fp)->_ub
 #define _FLOCK(fp)  _EXT(fp)->_lock
@@ -171,7 +167,7 @@
 
 #define _FILEEXT_SETUP(f, fext) \
 do { \
-	(f)->_ext._base = (unsigned char *)(fext); \
+	(f)->_ext._base = __BIONIC_CAST(reinterpret_cast, unsigned char*, fext); \
 	_FILEEXT_INIT(f); \
 } while (0)
 
@@ -259,6 +255,9 @@
 extern void __sinit(void); // Not actually implemented.
 #define __sdidinit 1
 
+size_t parsefloat(FILE*, char*, char*);
+size_t wparsefloat(FILE*, wchar_t*, wchar_t*);
+
 __END_DECLS
 
 #endif
diff --git a/libc/stdio/parsefloat.c b/libc/stdio/parsefloat.c
new file mode 100644
index 0000000..e911da4
--- /dev/null
+++ b/libc/stdio/parsefloat.c
@@ -0,0 +1,336 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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. 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 <ctype.h>
+#include <stdlib.h>
+
+#include "local.h"
+#include "floatio.h"
+
+#define	BUF		513	/* Maximum length of numeric string. */
+
+size_t parsefloat(FILE *fp, char *buf, char *end) {
+	char *commit, *p;
+	int infnanpos = 0;
+	enum {
+		S_START, S_GOTSIGN, S_INF, S_NAN, S_MAYBEHEX,
+		S_DIGITS, S_FRAC, S_EXP, S_EXPDIGITS
+	} state = S_START;
+	unsigned char c;
+	int gotmantdig = 0, ishex = 0;
+
+	/*
+	 * We set commit = p whenever the string we have read so far
+	 * constitutes a valid representation of a floating point
+	 * number by itself.  At some point, the parse will complete
+	 * or fail, and we will ungetc() back to the last commit point.
+	 * To ensure that the file offset gets updated properly, it is
+	 * always necessary to read at least one character that doesn't
+	 * match; thus, we can't short-circuit "infinity" or "nan(...)".
+	 */
+	commit = buf - 1;
+	for (p = buf; p < end; ) {
+		c = *fp->_p;
+reswitch:
+		switch (state) {
+		case S_START:
+			state = S_GOTSIGN;
+			if (c == '-' || c == '+')
+				break;
+			else
+				goto reswitch;
+		case S_GOTSIGN:
+			switch (c) {
+			case '0':
+				state = S_MAYBEHEX;
+				commit = p;
+				break;
+			case 'I':
+			case 'i':
+				state = S_INF;
+				break;
+			case 'N':
+			case 'n':
+				state = S_NAN;
+				break;
+			default:
+				state = S_DIGITS;
+				goto reswitch;
+			}
+			break;
+		case S_INF:
+			if (infnanpos > 6 ||
+			    (c != "nfinity"[infnanpos] &&
+			     c != "NFINITY"[infnanpos]))
+				goto parsedone;
+			if (infnanpos == 1 || infnanpos == 6)
+				commit = p;	/* inf or infinity */
+			infnanpos++;
+			break;
+		case S_NAN:
+			switch (infnanpos) {
+			case -1:	/* XXX kludge to deal with nan(...) */
+				goto parsedone;
+			case 0:
+				if (c != 'A' && c != 'a')
+					goto parsedone;
+				break;
+			case 1:
+				if (c != 'N' && c != 'n')
+					goto parsedone;
+				else
+					commit = p;
+				break;
+			case 2:
+				if (c != '(')
+					goto parsedone;
+				break;
+			default:
+				if (c == ')') {
+					commit = p;
+					infnanpos = -2;
+				} else if (!isalnum(c) && c != '_')
+					goto parsedone;
+				break;
+			}
+			infnanpos++;
+			break;
+		case S_MAYBEHEX:
+			state = S_DIGITS;
+			if (c == 'X' || c == 'x') {
+				ishex = 1;
+				break;
+			} else {	/* we saw a '0', but no 'x' */
+				gotmantdig = 1;
+				goto reswitch;
+			}
+		case S_DIGITS:
+			if ((ishex && isxdigit(c)) || isdigit(c))
+				gotmantdig = 1;
+			else {
+				state = S_FRAC;
+				if (c != '.')
+					goto reswitch;
+			}
+			if (gotmantdig)
+				commit = p;
+			break;
+		case S_FRAC:
+			if (((c == 'E' || c == 'e') && !ishex) ||
+			    ((c == 'P' || c == 'p') && ishex)) {
+				if (!gotmantdig)
+					goto parsedone;
+				else
+					state = S_EXP;
+			} else if ((ishex && isxdigit(c)) || isdigit(c)) {
+				commit = p;
+				gotmantdig = 1;
+			} else
+				goto parsedone;
+			break;
+		case S_EXP:
+			state = S_EXPDIGITS;
+			if (c == '-' || c == '+')
+				break;
+			else
+				goto reswitch;
+		case S_EXPDIGITS:
+			if (isdigit(c))
+				commit = p;
+			else
+				goto parsedone;
+			break;
+		default:
+			abort();
+		}
+		*p++ = c;
+		if (--fp->_r > 0)
+			fp->_p++;
+		else if (__srefill(fp))
+			break;	/* EOF */
+	}
+
+parsedone:
+	while (commit < --p)
+		(void)ungetc(*(unsigned char *)p, fp);
+	*++commit = '\0';
+	return commit - buf;
+}
+
+size_t wparsefloat(FILE *fp, wchar_t *buf, wchar_t *end) {
+	wchar_t *commit, *p;
+	int infnanpos = 0;
+	enum {
+		S_START, S_GOTSIGN, S_INF, S_NAN, S_MAYBEHEX,
+		S_DIGITS, S_FRAC, S_EXP, S_EXPDIGITS
+	} state = S_START;
+	wint_t c;
+	int gotmantdig = 0, ishex = 0;
+
+	/*
+	 * We set commit = p whenever the string we have read so far
+	 * constitutes a valid representation of a floating point
+	 * number by itself.  At some point, the parse will complete
+	 * or fail, and we will ungetc() back to the last commit point.
+	 * To ensure that the file offset gets updated properly, it is
+	 * always necessary to read at least one character that doesn't
+	 * match; thus, we can't short-circuit "infinity" or "nan(...)".
+	 */
+	commit = buf - 1;
+	c = WEOF;
+	for (p = buf; p < end; ) {
+		if ((c = __fgetwc_unlock(fp)) == WEOF)
+			break;
+reswitch:
+		switch (state) {
+		case S_START:
+			state = S_GOTSIGN;
+			if (c == '-' || c == '+')
+				break;
+			else
+				goto reswitch;
+		case S_GOTSIGN:
+			switch (c) {
+			case '0':
+				state = S_MAYBEHEX;
+				commit = p;
+				break;
+			case 'I':
+			case 'i':
+				state = S_INF;
+				break;
+			case 'N':
+			case 'n':
+				state = S_NAN;
+				break;
+			default:
+				state = S_DIGITS;
+				goto reswitch;
+			}
+			break;
+		case S_INF:
+			if (infnanpos > 6 ||
+			    (c != (wint_t)"nfinity"[infnanpos] &&
+			     c != (wint_t)"NFINITY"[infnanpos]))
+				goto parsedone;
+			if (infnanpos == 1 || infnanpos == 6)
+				commit = p;	/* inf or infinity */
+			infnanpos++;
+			break;
+		case S_NAN:
+			switch (infnanpos) {
+			case -1:	/* XXX kludge to deal with nan(...) */
+				goto parsedone;
+			case 0:
+				if (c != 'A' && c != 'a')
+					goto parsedone;
+				break;
+			case 1:
+				if (c != 'N' && c != 'n')
+					goto parsedone;
+				else
+					commit = p;
+				break;
+			case 2:
+				if (c != '(')
+					goto parsedone;
+				break;
+			default:
+				if (c == ')') {
+					commit = p;
+					infnanpos = -2;
+				} else if (!iswalnum(c) && c != '_')
+					goto parsedone;
+				break;
+			}
+			infnanpos++;
+			break;
+		case S_MAYBEHEX:
+			state = S_DIGITS;
+			if (c == 'X' || c == 'x') {
+				ishex = 1;
+				break;
+			} else {	/* we saw a '0', but no 'x' */
+				gotmantdig = 1;
+				goto reswitch;
+			}
+		case S_DIGITS:
+			if ((ishex && iswxdigit(c)) || iswdigit(c))
+				gotmantdig = 1;
+			else {
+				state = S_FRAC;
+				if (c != L'.')
+					goto reswitch;
+			}
+			if (gotmantdig)
+				commit = p;
+			break;
+		case S_FRAC:
+			if (((c == 'E' || c == 'e') && !ishex) ||
+			    ((c == 'P' || c == 'p') && ishex)) {
+				if (!gotmantdig)
+					goto parsedone;
+				else
+					state = S_EXP;
+			} else if ((ishex && iswxdigit(c)) || iswdigit(c)) {
+				commit = p;
+				gotmantdig = 1;
+			} else
+				goto parsedone;
+			break;
+		case S_EXP:
+			state = S_EXPDIGITS;
+			if (c == '-' || c == '+')
+				break;
+			else
+				goto reswitch;
+		case S_EXPDIGITS:
+			if (iswdigit(c))
+				commit = p;
+			else
+				goto parsedone;
+			break;
+		default:
+			abort();
+		}
+		*p++ = c;
+		c = WEOF;
+	}
+
+parsedone:
+	if (c != WEOF)
+		ungetwc(c, fp);
+	while (commit < --p)
+		ungetwc(*p, fp);
+	*++commit = '\0';
+	return (int)(commit - buf);
+}
diff --git a/libc/stdio/vfscanf.c b/libc/stdio/vfscanf.c
new file mode 100644
index 0000000..e47d0df
--- /dev/null
+++ b/libc/stdio/vfscanf.c
@@ -0,0 +1,898 @@
+/*	$OpenBSD: vfscanf.c,v 1.31 2014/03/19 05:17:01 guenther Exp $ */
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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. 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 <ctype.h>
+#include <wctype.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "local.h"
+
+#ifdef FLOATING_POINT
+#include "floatio.h"
+#endif
+
+#define	BUF		513	/* Maximum length of numeric string. */
+
+/*
+ * Flags used during conversion.
+ */
+#define	LONG		0x00001	/* l: long or double */
+#define	LONGDBL		0x00002	/* L: long double */
+#define	SHORT		0x00004	/* h: short */
+#define	SHORTSHORT	0x00008	/* hh: 8 bit integer */
+#define LLONG		0x00010	/* ll: long long (+ deprecated q: quad) */
+#define	POINTER		0x00020	/* p: void * (as hex) */
+#define	SIZEINT		0x00040	/* z: (signed) size_t */
+#define	MAXINT		0x00080	/* j: intmax_t */
+#define	PTRINT		0x00100	/* t: ptrdiff_t */
+#define	NOSKIP		0x00200	/* [ or c: do not skip blanks */
+#define	SUPPRESS	0x00400	/* *: suppress assignment */
+#define	UNSIGNED	0x00800	/* %[oupxX] conversions */
+
+/*
+ * The following are used in numeric conversions only:
+ * SIGNOK, HAVESIGN, NDIGITS, DPTOK, and EXPOK are for floating point;
+ * SIGNOK, HAVESIGN, NDIGITS, PFXOK, and NZDIGITS are for integral.
+ */
+#define	SIGNOK		0x01000	/* +/- is (still) legal */
+#define	HAVESIGN	0x02000	/* sign detected */
+#define	NDIGITS		0x04000	/* no digits detected */
+
+#define	DPTOK		0x08000	/* (float) decimal point is still legal */
+#define	EXPOK		0x10000	/* (float) exponent (e+3, etc) still legal */
+
+#define	PFXOK		0x08000	/* 0x prefix is (still) legal */
+#define	NZDIGITS	0x10000	/* no zero digits detected */
+
+/*
+ * Conversion types.
+ */
+#define	CT_CHAR		0	/* %c conversion */
+#define	CT_CCL		1	/* %[...] conversion */
+#define	CT_STRING	2	/* %s conversion */
+#define	CT_INT		3	/* integer, i.e., strtoimax or strtoumax */
+#define	CT_FLOAT	4	/* floating, i.e., strtod */
+
+#define u_char unsigned char
+#define u_long unsigned long
+
+static u_char *__sccl(char *, u_char *);
+
+/*
+ * Internal, unlocked version of vfscanf
+ */
+int
+__svfscanf(FILE *fp, const char *fmt0, __va_list ap)
+{
+	u_char *fmt = (u_char *)fmt0;
+	int c;		/* character from format, or conversion */
+	size_t width;	/* field width, or 0 */
+	char *p;	/* points into all kinds of strings */
+	int n;		/* handy integer */
+	int flags;	/* flags as defined above */
+	char *p0;	/* saves original value of p when necessary */
+	int nassigned;		/* number of fields assigned */
+	int nread;		/* number of characters consumed from fp */
+	int base;		/* base argument to strtoimax/strtouimax */
+	char ccltab[256];	/* character class table for %[...] */
+	char buf[BUF];		/* buffer for numeric conversions */
+#ifdef SCANF_WIDE_CHAR
+	wchar_t *wcp;		/* handy wide character pointer */
+	size_t nconv;		/* length of multibyte sequence converted */
+	mbstate_t mbs;
+#endif
+
+	/* `basefix' is used to avoid `if' tests in the integer scanner */
+	static short basefix[17] =
+		{ 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
+
+	_SET_ORIENTATION(fp, -1);
+
+	nassigned = 0;
+	nread = 0;
+	base = 0;		/* XXX just to keep gcc happy */
+	for (;;) {
+		c = *fmt++;
+		if (c == 0)
+			return (nassigned);
+		if (isspace(c)) {
+			while ((fp->_r > 0 || __srefill(fp) == 0) &&
+			    isspace(*fp->_p))
+				nread++, fp->_r--, fp->_p++;
+			continue;
+		}
+		if (c != '%')
+			goto literal;
+		width = 0;
+		flags = 0;
+		/*
+		 * switch on the format.  continue if done;
+		 * break once format type is derived.
+		 */
+again:		c = *fmt++;
+		switch (c) {
+		case '%':
+literal:
+			if (fp->_r <= 0 && __srefill(fp))
+				goto input_failure;
+			if (*fp->_p != c)
+				goto match_failure;
+			fp->_r--, fp->_p++;
+			nread++;
+			continue;
+
+		case '*':
+			flags |= SUPPRESS;
+			goto again;
+		case 'j':
+			flags |= MAXINT;
+			goto again;
+		case 'L':
+			flags |= LONGDBL;
+			goto again;
+		case 'h':
+			if (*fmt == 'h') {
+				fmt++;
+				flags |= SHORTSHORT;
+			} else {
+				flags |= SHORT;
+			}
+			goto again;
+		case 'l':
+			if (*fmt == 'l') {
+				fmt++;
+				flags |= LLONG;
+			} else {
+				flags |= LONG;
+			}
+			goto again;
+		case 'q':
+			flags |= LLONG;		/* deprecated */
+			goto again;
+		case 't':
+			flags |= PTRINT;
+			goto again;
+		case 'z':
+			flags |= SIZEINT;
+			goto again;
+
+		case '0': case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			width = width * 10 + c - '0';
+			goto again;
+
+		/*
+		 * Conversions.
+		 * Those marked `compat' are for 4.[123]BSD compatibility.
+		 *
+		 * (According to ANSI, E and X formats are supposed
+		 * to the same as e and x.  Sorry about that.)
+		 */
+		case 'D':	/* compat */
+			flags |= LONG;
+			/* FALLTHROUGH */
+		case 'd':
+			c = CT_INT;
+			base = 10;
+			break;
+
+		case 'i':
+			c = CT_INT;
+			base = 0;
+			break;
+
+		case 'O':	/* compat */
+			flags |= LONG;
+			/* FALLTHROUGH */
+		case 'o':
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 8;
+			break;
+
+		case 'u':
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 10;
+			break;
+
+		case 'X':
+		case 'x':
+			flags |= PFXOK;	/* enable 0x prefixing */
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 16;
+			break;
+
+#ifdef FLOATING_POINT
+		case 'e': case 'E':
+		case 'f': case 'F':
+		case 'g': case 'G':
+		case 'a': case 'A':
+			c = CT_FLOAT;
+			break;
+#endif
+
+		case 's':
+			c = CT_STRING;
+			break;
+
+		case '[':
+			fmt = __sccl(ccltab, fmt);
+			flags |= NOSKIP;
+			c = CT_CCL;
+			break;
+
+		case 'c':
+			flags |= NOSKIP;
+			c = CT_CHAR;
+			break;
+
+		case 'p':	/* pointer format is like hex */
+			flags |= POINTER | PFXOK;
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 16;
+			break;
+
+		case 'n':
+			if (flags & SUPPRESS)
+				continue;
+			if (flags & SHORTSHORT)
+				*va_arg(ap, signed char *) = nread;
+			else if (flags & SHORT)
+				*va_arg(ap, short *) = nread;
+			else if (flags & LONG)
+				*va_arg(ap, long *) = nread;
+			else if (flags & SIZEINT)
+				*va_arg(ap, ssize_t *) = nread;
+			else if (flags & PTRINT)
+				*va_arg(ap, ptrdiff_t *) = nread;
+			else if (flags & LLONG)
+				*va_arg(ap, long long *) = nread;
+			else if (flags & MAXINT)
+				*va_arg(ap, intmax_t *) = nread;
+			else
+				*va_arg(ap, int *) = nread;
+			continue;
+
+		/*
+		 * Disgusting backwards compatibility hacks.	XXX
+		 */
+		case '\0':	/* compat */
+			return (EOF);
+
+		default:	/* compat */
+			if (isupper(c))
+				flags |= LONG;
+			c = CT_INT;
+			base = 10;
+			break;
+		}
+
+		/*
+		 * We have a conversion that requires input.
+		 */
+		if (fp->_r <= 0 && __srefill(fp))
+			goto input_failure;
+
+		/*
+		 * Consume leading white space, except for formats
+		 * that suppress this.
+		 */
+		if ((flags & NOSKIP) == 0) {
+			while (isspace(*fp->_p)) {
+				nread++;
+				if (--fp->_r > 0)
+					fp->_p++;
+				else if (__srefill(fp))
+					goto input_failure;
+			}
+			/*
+			 * Note that there is at least one character in
+			 * the buffer, so conversions that do not set NOSKIP
+			 * ca no longer result in an input failure.
+			 */
+		}
+
+		/*
+		 * Do the conversion.
+		 */
+		switch (c) {
+
+		case CT_CHAR:
+			/* scan arbitrary characters (sets NOSKIP) */
+			if (width == 0)
+				width = 1;
+#ifdef SCANF_WIDE_CHAR
+			if (flags & LONG) {
+				if ((flags & SUPPRESS) == 0)
+					wcp = va_arg(ap, wchar_t *);
+				else
+					wcp = NULL;
+				n = 0;
+				while (width != 0) {
+					if (n == (int)MB_CUR_MAX) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					buf[n++] = *fp->_p;
+					fp->_p++;
+					fp->_r--;
+					memset(&mbs, 0, sizeof(mbs));
+					nconv = mbrtowc(wcp, buf, n, &mbs);
+					if (nconv == (size_t)-1) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					if (nconv == 0 && !(flags & SUPPRESS))
+						*wcp = L'\0';
+					if (nconv != (size_t)-2) {
+						nread += n;
+						width--;
+						if (!(flags & SUPPRESS))
+							wcp++;
+						n = 0;
+					}
+					if (fp->_r <= 0 && __srefill(fp)) {
+						if (n != 0) {
+							fp->_flags |= __SERR;
+							goto input_failure;
+						}
+						break;
+					}
+				}
+				if (!(flags & SUPPRESS))
+					nassigned++;
+			} else
+#endif /* SCANF_WIDE_CHAR */
+			if (flags & SUPPRESS) {
+				size_t sum = 0;
+				for (;;) {
+					if ((n = fp->_r) < (int)width) {
+						sum += n;
+						width -= n;
+						fp->_p += n;
+						if (__srefill(fp)) {
+							if (sum == 0)
+							    goto input_failure;
+							break;
+						}
+					} else {
+						sum += width;
+						fp->_r -= width;
+						fp->_p += width;
+						break;
+					}
+				}
+				nread += sum;
+			} else {
+				size_t r = fread((void *)va_arg(ap, char *), 1,
+				    width, fp);
+
+				if (r == 0)
+					goto input_failure;
+				nread += r;
+				nassigned++;
+			}
+			break;
+
+		case CT_CCL:
+			/* scan a (nonempty) character class (sets NOSKIP) */
+			if (width == 0)
+				width = (size_t)~0;	/* `infinity' */
+#ifdef SCANF_WIDE_CHAR
+			/* take only those things in the class */
+			if (flags & LONG) {
+				wchar_t twc;
+				int nchars;
+
+				if ((flags & SUPPRESS) == 0)
+					wcp = va_arg(ap, wchar_t *);
+				else
+					wcp = &twc;
+				n = 0;
+				nchars = 0;
+				while (width != 0) {
+					if (n == (int)MB_CUR_MAX) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					buf[n++] = *fp->_p;
+					fp->_p++;
+					fp->_r--;
+					memset(&mbs, 0, sizeof(mbs));
+					nconv = mbrtowc(wcp, buf, n, &mbs);
+					if (nconv == (size_t)-1) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					if (nconv == 0)
+						*wcp = L'\0';
+					if (nconv != (size_t)-2) {
+						if (wctob(*wcp) != EOF &&
+						    !ccltab[wctob(*wcp)]) {
+							while (n != 0) {
+								n--;
+								ungetc(buf[n],
+								    fp);
+							}
+							break;
+						}
+						nread += n;
+						width--;
+						if (!(flags & SUPPRESS))
+							wcp++;
+						nchars++;
+						n = 0;
+					}
+					if (fp->_r <= 0 && __srefill(fp)) {
+						if (n != 0) {
+							fp->_flags |= __SERR;
+							goto input_failure;
+						}
+						break;
+					}
+				}
+				if (n != 0) {
+					fp->_flags |= __SERR;
+					goto input_failure;
+				}
+				n = nchars;
+				if (n == 0)
+					goto match_failure;
+				if (!(flags & SUPPRESS)) {
+					*wcp = L'\0';
+					nassigned++;
+				}
+			} else
+#endif /* SCANF_WIDE_CHAR */
+			/* take only those things in the class */
+			if (flags & SUPPRESS) {
+				n = 0;
+				while (ccltab[*fp->_p]) {
+					n++, fp->_r--, fp->_p++;
+					if (--width == 0)
+						break;
+					if (fp->_r <= 0 && __srefill(fp)) {
+						if (n == 0)
+							goto input_failure;
+						break;
+					}
+				}
+				if (n == 0)
+					goto match_failure;
+			} else {
+				p0 = p = va_arg(ap, char *);
+				while (ccltab[*fp->_p]) {
+					fp->_r--;
+					*p++ = *fp->_p++;
+					if (--width == 0)
+						break;
+					if (fp->_r <= 0 && __srefill(fp)) {
+						if (p == p0)
+							goto input_failure;
+						break;
+					}
+				}
+				n = p - p0;
+				if (n == 0)
+					goto match_failure;
+				*p = '\0';
+				nassigned++;
+			}
+			nread += n;
+			break;
+
+		case CT_STRING:
+			/* like CCL, but zero-length string OK, & no NOSKIP */
+			if (width == 0)
+				width = (size_t)~0;
+#ifdef SCANF_WIDE_CHAR
+			if (flags & LONG) {
+				wchar_t twc;
+
+				if ((flags & SUPPRESS) == 0)
+					wcp = va_arg(ap, wchar_t *);
+				else
+					wcp = &twc;
+				n = 0;
+				while (!isspace(*fp->_p) && width != 0) {
+					if (n == (int)MB_CUR_MAX) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					buf[n++] = *fp->_p;
+					fp->_p++;
+					fp->_r--;
+					memset(&mbs, 0, sizeof(mbs));
+					nconv = mbrtowc(wcp, buf, n, &mbs);
+					if (nconv == (size_t)-1) {
+						fp->_flags |= __SERR;
+						goto input_failure;
+					}
+					if (nconv == 0)
+						*wcp = L'\0';
+					if (nconv != (size_t)-2) {
+						if (iswspace(*wcp)) {
+							while (n != 0) {
+								n--;
+								ungetc(buf[n],
+								    fp);
+							}
+							break;
+						}
+						nread += n;
+						width--;
+						if (!(flags & SUPPRESS))
+							wcp++;
+						n = 0;
+					}
+					if (fp->_r <= 0 && __srefill(fp)) {
+						if (n != 0) {
+							fp->_flags |= __SERR;
+							goto input_failure;
+						}
+						break;
+					}
+				}
+				if (!(flags & SUPPRESS)) {
+					*wcp = L'\0';
+					nassigned++;
+				}
+			} else
+#endif /* SCANF_WIDE_CHAR */
+			if (flags & SUPPRESS) {
+				n = 0;
+				while (!isspace(*fp->_p)) {
+					n++, fp->_r--, fp->_p++;
+					if (--width == 0)
+						break;
+					if (fp->_r <= 0 && __srefill(fp))
+						break;
+				}
+				nread += n;
+			} else {
+				p0 = p = va_arg(ap, char *);
+				while (!isspace(*fp->_p)) {
+					fp->_r--;
+					*p++ = *fp->_p++;
+					if (--width == 0)
+						break;
+					if (fp->_r <= 0 && __srefill(fp))
+						break;
+				}
+				*p = '\0';
+				nread += p - p0;
+				nassigned++;
+			}
+			continue;
+
+		case CT_INT:
+			/* scan an integer as if by strtoimax/strtoumax */
+#ifdef hardway
+			if (width == 0 || width > sizeof(buf) - 1)
+				width = sizeof(buf) - 1;
+#else
+			/* size_t is unsigned, hence this optimisation */
+			if (--width > sizeof(buf) - 2)
+				width = sizeof(buf) - 2;
+			width++;
+#endif
+			flags |= SIGNOK | NDIGITS | NZDIGITS;
+			for (p = buf; width; width--) {
+				c = *fp->_p;
+				/*
+				 * Switch on the character; `goto ok'
+				 * if we accept it as a part of number.
+				 */
+				switch (c) {
+
+				/*
+				 * The digit 0 is always legal, but is
+				 * special.  For %i conversions, if no
+				 * digits (zero or nonzero) have been
+				 * scanned (only signs), we will have
+				 * base==0.  In that case, we should set
+				 * it to 8 and enable 0x prefixing.
+				 * Also, if we have not scanned zero digits
+				 * before this, do not turn off prefixing
+				 * (someone else will turn it off if we
+				 * have scanned any nonzero digits).
+				 */
+				case '0':
+					if (base == 0) {
+						base = 8;
+						flags |= PFXOK;
+					}
+					if (flags & NZDIGITS)
+					    flags &= ~(SIGNOK|NZDIGITS|NDIGITS);
+					else
+					    flags &= ~(SIGNOK|PFXOK|NDIGITS);
+					goto ok;
+
+				/* 1 through 7 always legal */
+				case '1': case '2': case '3':
+				case '4': case '5': case '6': case '7':
+					base = basefix[base];
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* digits 8 and 9 ok iff decimal or hex */
+				case '8': case '9':
+					base = basefix[base];
+					if (base <= 8)
+						break;	/* not legal here */
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* letters ok iff hex */
+				case 'A': case 'B': case 'C':
+				case 'D': case 'E': case 'F':
+				case 'a': case 'b': case 'c':
+				case 'd': case 'e': case 'f':
+					/* no need to fix base here */
+					if (base <= 10)
+						break;	/* not legal here */
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* sign ok only as first character */
+				case '+': case '-':
+					if (flags & SIGNOK) {
+						flags &= ~SIGNOK;
+						flags |= HAVESIGN;
+						goto ok;
+					}
+					break;
+
+				/*
+				 * x ok iff flag still set and 2nd char (or
+				 * 3rd char if we have a sign).
+				 */
+				case 'x': case 'X':
+					if ((flags & PFXOK) && p ==
+					    buf + 1 + !!(flags & HAVESIGN)) {
+						base = 16;	/* if %i */
+						flags &= ~PFXOK;
+						goto ok;
+					}
+					break;
+				}
+
+				/*
+				 * If we got here, c is not a legal character
+				 * for a number.  Stop accumulating digits.
+				 */
+				break;
+		ok:
+				/*
+				 * c is legal: store it and look at the next.
+				 */
+				*p++ = c;
+				if (--fp->_r > 0)
+					fp->_p++;
+				else if (__srefill(fp))
+					break;		/* EOF */
+			}
+			/*
+			 * If we had only a sign, it is no good; push
+			 * back the sign.  If the number ends in `x',
+			 * it was [sign] '0' 'x', so push back the x
+			 * and treat it as [sign] '0'.
+			 */
+			if (flags & NDIGITS) {
+				if (p > buf)
+					(void) ungetc(*(u_char *)--p, fp);
+				goto match_failure;
+			}
+			c = ((u_char *)p)[-1];
+			if (c == 'x' || c == 'X') {
+				--p;
+				(void) ungetc(c, fp);
+			}
+			if ((flags & SUPPRESS) == 0) {
+				uintmax_t res;
+
+				*p = '\0';
+				if (flags & UNSIGNED)
+					res = strtoumax(buf, NULL, base);
+				else
+					res = strtoimax(buf, NULL, base);
+				if (flags & POINTER)
+					*va_arg(ap, void **) =
+					    (void *)(uintptr_t)res;
+				else if (flags & MAXINT)
+					*va_arg(ap, intmax_t *) = res;
+				else if (flags & LLONG)
+					*va_arg(ap, long long *) = res;
+				else if (flags & SIZEINT)
+					*va_arg(ap, ssize_t *) = res;
+				else if (flags & PTRINT)
+					*va_arg(ap, ptrdiff_t *) = res;
+				else if (flags & LONG)
+					*va_arg(ap, long *) = res;
+				else if (flags & SHORT)
+					*va_arg(ap, short *) = res;
+				else if (flags & SHORTSHORT)
+					*va_arg(ap, signed char *) = res;
+				else
+					*va_arg(ap, int *) = res;
+				nassigned++;
+			}
+			nread += p - buf;
+			break;
+
+#ifdef FLOATING_POINT
+		case CT_FLOAT:
+			/* scan a floating point number as if by strtod */
+			if (width == 0 || width > sizeof(buf) - 1)
+				width = sizeof(buf) - 1;
+			if ((width = parsefloat(fp, buf, buf + width)) == 0)
+				goto match_failure;
+			if ((flags & SUPPRESS) == 0) {
+				if (flags & LONGDBL) {
+					long double res = strtold(buf, &p);
+					*va_arg(ap, long double *) = res;
+				} else if (flags & LONG) {
+					double res = strtod(buf, &p);
+					*va_arg(ap, double *) = res;
+				} else {
+					float res = strtof(buf, &p);
+					*va_arg(ap, float *) = res;
+				}
+				if ((size_t)(p - buf) != width) abort();
+				nassigned++;
+			}
+			nread += width;
+			break;
+#endif /* FLOATING_POINT */
+		}
+	}
+input_failure:
+	if (nassigned == 0)
+		nassigned = -1;
+match_failure:
+	return (nassigned);
+}
+
+/*
+ * Fill in the given table from the scanset at the given format
+ * (just after `[').  Return a pointer to the character past the
+ * closing `]'.  The table has a 1 wherever characters should be
+ * considered part of the scanset.
+ */
+static u_char *
+__sccl(char *tab, u_char *fmt)
+{
+	int c, n, v;
+
+	/* first `clear' the whole table */
+	c = *fmt++;		/* first char hat => negated scanset */
+	if (c == '^') {
+		v = 1;		/* default => accept */
+		c = *fmt++;	/* get new first char */
+	} else
+		v = 0;		/* default => reject */
+	/* should probably use memset here */
+	for (n = 0; n < 256; n++)
+		tab[n] = v;
+	if (c == 0)
+		return (fmt - 1);/* format ended before closing ] */
+
+	/*
+	 * Now set the entries corresponding to the actual scanset
+	 * to the opposite of the above.
+	 *
+	 * The first character may be ']' (or '-') without being special;
+	 * the last character may be '-'.
+	 */
+	v = 1 - v;
+	for (;;) {
+		tab[c] = v;		/* take character c */
+doswitch:
+		n = *fmt++;		/* and examine the next */
+		switch (n) {
+
+		case 0:			/* format ended too soon */
+			return (fmt - 1);
+
+		case '-':
+			/*
+			 * A scanset of the form
+			 *	[01+-]
+			 * is defined as `the digit 0, the digit 1,
+			 * the character +, the character -', but
+			 * the effect of a scanset such as
+			 *	[a-zA-Z0-9]
+			 * is implementation defined.  The V7 Unix
+			 * scanf treats `a-z' as `the letters a through
+			 * z', but treats `a-a' as `the letter a, the
+			 * character -, and the letter a'.
+			 *
+			 * For compatibility, the `-' is not considerd
+			 * to define a range if the character following
+			 * it is either a close bracket (required by ANSI)
+			 * or is not numerically greater than the character
+			 * we just stored in the table (c).
+			 */
+			n = *fmt;
+			if (n == ']' || n < c) {
+				c = '-';
+				break;	/* resume the for(;;) */
+			}
+			fmt++;
+			do {		/* fill in the range */
+				tab[++c] = v;
+			} while (c < n);
+#if 1	/* XXX another disgusting compatibility hack */
+			/*
+			 * Alas, the V7 Unix scanf also treats formats
+			 * such as [a-c-e] as `the letters a through e'.
+			 * This too is permitted by the standard....
+			 */
+			goto doswitch;
+#else
+			c = *fmt++;
+			if (c == 0)
+				return (fmt - 1);
+			if (c == ']')
+				return (fmt);
+#endif
+			break;
+
+		case ']':		/* end of scanset */
+			return (fmt);
+
+		default:		/* just another character */
+			c = n;
+			break;
+		}
+	}
+	/* NOTREACHED */
+}
+
+int
+vfscanf(FILE *fp, const char *fmt0, __va_list ap)
+{
+	int r;
+
+	FLOCKFILE(fp);
+	r = __svfscanf(fp, fmt0, ap);
+	FUNLOCKFILE(fp);
+	return (r);
+}
diff --git a/libc/stdio/vfwscanf.c b/libc/stdio/vfwscanf.c
new file mode 100644
index 0000000..0a7bfa9
--- /dev/null
+++ b/libc/stdio/vfwscanf.c
@@ -0,0 +1,727 @@
+/*	$OpenBSD: vfwscanf.c,v 1.4 2014/03/19 05:17:01 guenther Exp $ */
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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. 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 <inttypes.h>
+#include <limits.h>
+#include <locale.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wctype.h>
+#include "local.h"
+
+#ifdef FLOATING_POINT
+#include "floatio.h"
+#endif
+
+#define	BUF		513	/* Maximum length of numeric string. */
+
+/*
+ * Flags used during conversion.
+ */
+#define	LONG		0x00001	/* l: long or double */
+#define	LONGDBL		0x00002	/* L: long double */
+#define	SHORT		0x00004	/* h: short */
+#define	SHORTSHORT	0x00008	/* hh: 8 bit integer */
+#define LLONG		0x00010	/* ll: long long (+ deprecated q: quad) */
+#define	POINTER		0x00020	/* p: void * (as hex) */
+#define	SIZEINT		0x00040	/* z: (signed) size_t */
+#define	MAXINT		0x00080	/* j: intmax_t */
+#define	PTRINT		0x00100	/* t: ptrdiff_t */
+#define	NOSKIP		0x00200	/* [ or c: do not skip blanks */
+#define	SUPPRESS	0x00400	/* *: suppress assignment */
+#define	UNSIGNED	0x00800	/* %[oupxX] conversions */
+
+/*
+ * The following are used in numeric conversions only:
+ * SIGNOK, HAVESIGN, NDIGITS, DPTOK, and EXPOK are for floating point;
+ * SIGNOK, HAVESIGN, NDIGITS, PFXOK, and NZDIGITS are for integral.
+ */
+#define	SIGNOK		0x01000	/* +/- is (still) legal */
+#define	HAVESIGN	0x02000	/* sign detected */
+#define	NDIGITS		0x04000	/* no digits detected */
+
+#define	DPTOK		0x08000	/* (float) decimal point is still legal */
+#define	EXPOK		0x10000	/* (float) exponent (e+3, etc) still legal */
+
+#define	PFXOK		0x08000	/* 0x prefix is (still) legal */
+#define	NZDIGITS	0x10000	/* no zero digits detected */
+
+/*
+ * Conversion types.
+ */
+#define	CT_CHAR		0	/* %c conversion */
+#define	CT_CCL		1	/* %[...] conversion */
+#define	CT_STRING	2	/* %s conversion */
+#define	CT_INT		3	/* integer, i.e., strtoimax or strtoumax */
+#define	CT_FLOAT	4	/* floating, i.e., strtod */
+
+#define u_char unsigned char
+#define u_long unsigned long
+
+#define	INCCL(_c)	\
+	(cclcompl ? (wmemchr(ccls, (_c), ccle - ccls) == NULL) : \
+	(wmemchr(ccls, (_c), ccle - ccls) != NULL))
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wframe-larger-than="
+
+/*
+ * vfwscanf
+ */
+int
+__vfwscanf(FILE * __restrict fp, const wchar_t * __restrict fmt, __va_list ap)
+{
+	wint_t c;	/* character from format, or conversion */
+	size_t width;	/* field width, or 0 */
+	wchar_t *p;	/* points into all kinds of strings */
+	int n;		/* handy integer */
+	int flags;	/* flags as defined above */
+	wchar_t *p0;	/* saves original value of p when necessary */
+	int nassigned;		/* number of fields assigned */
+	int nconversions;	/* number of conversions */
+	int nread;		/* number of characters consumed from fp */
+	int base;		/* base argument to strtoimax/strtouimax */
+	wchar_t buf[BUF];	/* buffer for numeric conversions */
+	const wchar_t *ccls;	/* character class start */
+	const wchar_t *ccle;	/* character class end */
+	int cclcompl;		/* ccl is complemented? */
+	wint_t wi;		/* handy wint_t */
+	char *mbp;		/* multibyte string pointer for %c %s %[ */
+	size_t nconv;		/* number of bytes in mb. conversion */
+	char mbbuf[MB_LEN_MAX];	/* temporary mb. character buffer */
+ 	mbstate_t mbs;
+
+	/* `basefix' is used to avoid `if' tests in the integer scanner */
+	static short basefix[17] =
+		{ 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 };
+
+	_SET_ORIENTATION(fp, 1);
+
+	nassigned = 0;
+	nconversions = 0;
+	nread = 0;
+	base = 0;		/* XXX just to keep gcc happy */
+	ccls = ccle = NULL;
+	for (;;) {
+		c = *fmt++;
+		if (c == 0) {
+			return (nassigned);
+		}
+		if (iswspace(c)) {
+			while ((c = __fgetwc_unlock(fp)) != WEOF &&
+			    iswspace(c))
+				;
+			if (c != WEOF)
+				__ungetwc(c, fp);
+			continue;
+		}
+		if (c != '%')
+			goto literal;
+		width = 0;
+		flags = 0;
+		/*
+		 * switch on the format.  continue if done;
+		 * break once format type is derived.
+		 */
+again:		c = *fmt++;
+		switch (c) {
+		case '%':
+literal:
+			if ((wi = __fgetwc_unlock(fp)) == WEOF)
+				goto input_failure;
+			if (wi != c) {
+				__ungetwc(wi, fp);
+				goto input_failure;
+			}
+			nread++;
+			continue;
+
+		case '*':
+			flags |= SUPPRESS;
+			goto again;
+		case 'j':
+			flags |= MAXINT;
+			goto again;
+		case 'L':
+			flags |= LONGDBL;
+			goto again;
+		case 'h':
+			if (*fmt == 'h') {
+				fmt++;
+				flags |= SHORTSHORT;
+			} else {
+				flags |= SHORT;
+			}
+			goto again;
+		case 'l':
+			if (*fmt == 'l') {
+				fmt++;
+				flags |= LLONG;
+			} else {
+				flags |= LONG;
+			}
+			goto again;
+		case 'q':
+			flags |= LLONG;		/* deprecated */
+			goto again;
+		case 't':
+			flags |= PTRINT;
+			goto again;
+		case 'z':
+			flags |= SIZEINT;
+			goto again;
+
+		case '0': case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9':
+			width = width * 10 + c - '0';
+			goto again;
+
+		/*
+		 * Conversions.
+		 * Those marked `compat' are for 4.[123]BSD compatibility.
+		 *
+		 * (According to ANSI, E and X formats are supposed
+		 * to the same as e and x.  Sorry about that.)
+		 */
+		case 'D':	/* compat */
+			flags |= LONG;
+			/* FALLTHROUGH */
+		case 'd':
+			c = CT_INT;
+			base = 10;
+			break;
+
+		case 'i':
+			c = CT_INT;
+			base = 0;
+			break;
+
+		case 'O':	/* compat */
+			flags |= LONG;
+			/* FALLTHROUGH */
+		case 'o':
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 8;
+			break;
+
+		case 'u':
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 10;
+			break;
+
+		case 'X':
+		case 'x':
+			flags |= PFXOK;	/* enable 0x prefixing */
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 16;
+			break;
+
+#ifdef FLOATING_POINT
+		case 'e': case 'E':
+		case 'f': case 'F':
+		case 'g': case 'G':
+		case 'a': case 'A':
+			c = CT_FLOAT;
+			break;
+#endif
+
+		case 's':
+			c = CT_STRING;
+			break;
+
+		case '[':
+			ccls = fmt;
+			if (*fmt == '^') {
+				cclcompl = 1;
+				fmt++;
+			} else
+				cclcompl = 0;
+			if (*fmt == ']')
+				fmt++;
+			while (*fmt != '\0' && *fmt != ']')
+				fmt++;
+			ccle = fmt;
+			fmt++;
+			flags |= NOSKIP;
+			c = CT_CCL;
+			break;
+
+		case 'c':
+			flags |= NOSKIP;
+			c = CT_CHAR;
+			break;
+
+		case 'p':	/* pointer format is like hex */
+			flags |= POINTER | PFXOK;
+			c = CT_INT;
+			flags |= UNSIGNED;
+			base = 16;
+			break;
+
+		case 'n':
+			nconversions++;
+			if (flags & SUPPRESS)
+				continue;
+			if (flags & SHORTSHORT)
+				*va_arg(ap, signed char *) = nread;
+			else if (flags & SHORT)
+				*va_arg(ap, short *) = nread;
+			else if (flags & LONG)
+				*va_arg(ap, long *) = nread;
+			else if (flags & SIZEINT)
+				*va_arg(ap, ssize_t *) = nread;
+			else if (flags & PTRINT)
+				*va_arg(ap, ptrdiff_t *) = nread;
+			else if (flags & LLONG)
+				*va_arg(ap, long long *) = nread;
+			else if (flags & MAXINT)
+				*va_arg(ap, intmax_t *) = nread;
+			else
+				*va_arg(ap, int *) = nread;
+			continue;
+
+		/*
+		 * Disgusting backwards compatibility hacks.	XXX
+		 */
+		case '\0':	/* compat */
+			return (EOF);
+
+		default:	/* compat */
+			if (iswupper(c))
+				flags |= LONG;
+			c = CT_INT;
+			base = 10;
+			break;
+		}
+
+		/*
+		 * Consume leading white space, except for formats
+		 * that suppress this.
+		 */
+		if ((flags & NOSKIP) == 0) {
+			while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+			    iswspace(wi))
+				nread++;
+			if (wi == WEOF)
+				goto input_failure;
+			__ungetwc(wi, fp);
+		}
+
+		/*
+		 * Do the conversion.
+		 */
+		switch (c) {
+
+		case CT_CHAR:
+			/* scan arbitrary characters (sets NOSKIP) */
+			if (width == 0)
+				width = 1;
+ 			if (flags & LONG) {
+				if (!(flags & SUPPRESS))
+					p = va_arg(ap, wchar_t *);
+				n = 0;
+				while (width-- != 0 &&
+				    (wi = __fgetwc_unlock(fp)) != WEOF) {
+					if (!(flags & SUPPRESS))
+						*p++ = (wchar_t)wi;
+					n++;
+				}
+				if (n == 0)
+					goto input_failure;
+				nread += n;
+ 				if (!(flags & SUPPRESS))
+ 					nassigned++;
+			} else {
+				if (!(flags & SUPPRESS))
+					mbp = va_arg(ap, char *);
+				n = 0;
+				memset(&mbs, 0, sizeof(mbs));
+				while (width != 0 &&
+				    (wi = __fgetwc_unlock(fp)) != WEOF) {
+					if (width >= MB_CUR_MAX &&
+					    !(flags & SUPPRESS)) {
+						nconv = wcrtomb(mbp, wi, &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+					} else {
+						nconv = wcrtomb(mbbuf, wi,
+						    &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+						if (nconv > width) {
+							__ungetwc(wi, fp);
+ 							break;
+ 						}
+						if (!(flags & SUPPRESS))
+							memcpy(mbp, mbbuf,
+							    nconv);
+ 					}
+					if (!(flags & SUPPRESS))
+						mbp += nconv;
+					width -= nconv;
+					n++;
+ 				}
+				if (n == 0)
+ 					goto input_failure;
+				nread += n;
+				if (!(flags & SUPPRESS))
+					nassigned++;
+			}
+			nconversions++;
+			break;
+
+		case CT_CCL:
+			/* scan a (nonempty) character class (sets NOSKIP) */
+			if (width == 0)
+				width = (size_t)~0;	/* `infinity' */
+			/* take only those things in the class */
+			if ((flags & SUPPRESS) && (flags & LONG)) {
+				n = 0;
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width-- != 0 && INCCL(wi))
+					n++;
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+				if (n == 0)
+					goto match_failure;
+			} else if (flags & LONG) {
+				p0 = p = va_arg(ap, wchar_t *);
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width-- != 0 && INCCL(wi))
+					*p++ = (wchar_t)wi;
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+				n = p - p0;
+				if (n == 0)
+					goto match_failure;
+				*p = 0;
+				nassigned++;
+			} else {
+				if (!(flags & SUPPRESS))
+					mbp = va_arg(ap, char *);
+				n = 0;
+				memset(&mbs, 0, sizeof(mbs));
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width != 0 && INCCL(wi)) {
+					if (width >= MB_CUR_MAX &&
+					   !(flags & SUPPRESS)) {
+						nconv = wcrtomb(mbp, wi, &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+					} else {
+						nconv = wcrtomb(mbbuf, wi,
+						    &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+						if (nconv > width)
+							break;
+						if (!(flags & SUPPRESS))
+							memcpy(mbp, mbbuf,
+							    nconv);
+					}
+					if (!(flags & SUPPRESS))
+						mbp += nconv;
+					width -= nconv;
+					n++;
+				}
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+				if (!(flags & SUPPRESS)) {
+					*mbp = 0;
+					nassigned++;
+				}
+ 			}
+			nread += n;
+			nconversions++;
+			break;
+
+		case CT_STRING:
+			/* like CCL, but zero-length string OK, & no NOSKIP */
+			if (width == 0)
+				width = (size_t)~0;
+			if ((flags & SUPPRESS) && (flags & LONG)) {
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width-- != 0 &&
+				    !iswspace(wi))
+					nread++;
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+			} else if (flags & LONG) {
+				p0 = p = va_arg(ap, wchar_t *);
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width-- != 0 &&
+				    !iswspace(wi)) {
+					*p++ = (wchar_t)wi;
+					nread++;
+				}
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+				*p = 0;
+				nassigned++;
+			} else {
+				if (!(flags & SUPPRESS))
+					mbp = va_arg(ap, char *);
+				memset(&mbs, 0, sizeof(mbs));
+				while ((wi = __fgetwc_unlock(fp)) != WEOF &&
+				    width != 0 &&
+				    !iswspace(wi)) {
+					if (width >= MB_CUR_MAX &&
+					    !(flags & SUPPRESS)) {
+						nconv = wcrtomb(mbp, wi, &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+					} else {
+						nconv = wcrtomb(mbbuf, wi,
+						    &mbs);
+						if (nconv == (size_t)-1)
+							goto input_failure;
+						if (nconv > width)
+							break;
+						if (!(flags & SUPPRESS))
+							memcpy(mbp, mbbuf,
+							    nconv);
+					}
+					if (!(flags & SUPPRESS))
+						mbp += nconv;
+					width -= nconv;
+					nread++;
+				}
+				if (wi != WEOF)
+					__ungetwc(wi, fp);
+				if (!(flags & SUPPRESS)) {
+					*mbp = 0;
+ 					nassigned++;
+ 				}
+			}
+			nconversions++;
+			continue;
+
+		case CT_INT:
+			/* scan an integer as if by strtoimax/strtoumax */
+			if (width == 0 || width > sizeof(buf) /
+			    sizeof(*buf) - 1)
+				width = sizeof(buf) / sizeof(*buf) - 1;
+			flags |= SIGNOK | NDIGITS | NZDIGITS;
+			for (p = buf; width; width--) {
+				c = __fgetwc_unlock(fp);
+				/*
+				 * Switch on the character; `goto ok'
+				 * if we accept it as a part of number.
+				 */
+				switch (c) {
+
+				/*
+				 * The digit 0 is always legal, but is
+				 * special.  For %i conversions, if no
+				 * digits (zero or nonzero) have been
+				 * scanned (only signs), we will have
+				 * base==0.  In that case, we should set
+				 * it to 8 and enable 0x prefixing.
+				 * Also, if we have not scanned zero digits
+				 * before this, do not turn off prefixing
+				 * (someone else will turn it off if we
+				 * have scanned any nonzero digits).
+				 */
+				case '0':
+					if (base == 0) {
+						base = 8;
+						flags |= PFXOK;
+					}
+					if (flags & NZDIGITS)
+					    flags &= ~(SIGNOK|NZDIGITS|NDIGITS);
+					else
+					    flags &= ~(SIGNOK|PFXOK|NDIGITS);
+					goto ok;
+
+				/* 1 through 7 always legal */
+				case '1': case '2': case '3':
+				case '4': case '5': case '6': case '7':
+					base = basefix[base];
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* digits 8 and 9 ok iff decimal or hex */
+				case '8': case '9':
+					base = basefix[base];
+					if (base <= 8)
+						break;	/* not legal here */
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* letters ok iff hex */
+				case 'A': case 'B': case 'C':
+				case 'D': case 'E': case 'F':
+				case 'a': case 'b': case 'c':
+				case 'd': case 'e': case 'f':
+					/* no need to fix base here */
+					if (base <= 10)
+						break;	/* not legal here */
+					flags &= ~(SIGNOK | PFXOK | NDIGITS);
+					goto ok;
+
+				/* sign ok only as first character */
+				case '+': case '-':
+					if (flags & SIGNOK) {
+						flags &= ~SIGNOK;
+						flags |= HAVESIGN;
+						goto ok;
+					}
+					break;
+
+				/*
+				 * x ok iff flag still set and 2nd char (or
+				 * 3rd char if we have a sign).
+				 */
+				case 'x': case 'X':
+					if ((flags & PFXOK) && p ==
+					    buf + 1 + !!(flags & HAVESIGN)) {
+						base = 16;	/* if %i */
+						flags &= ~PFXOK;
+						goto ok;
+					}
+					break;
+				}
+
+				/*
+				 * If we got here, c is not a legal character
+				 * for a number.  Stop accumulating digits.
+				 */
+				if (c != WEOF)
+					__ungetwc(c, fp);
+				break;
+		ok:
+				/*
+				 * c is legal: store it and look at the next.
+				 */
+				*p++ = (wchar_t)c;
+			}
+			/*
+			 * If we had only a sign, it is no good; push
+			 * back the sign.  If the number ends in `x',
+			 * it was [sign] '0' 'x', so push back the x
+			 * and treat it as [sign] '0'.
+			 */
+			if (flags & NDIGITS) {
+				if (p > buf)
+					__ungetwc(*--p, fp);
+				goto match_failure;
+			}
+			c = p[-1];
+			if (c == 'x' || c == 'X') {
+				--p;
+				__ungetwc(c, fp);
+			}
+			if ((flags & SUPPRESS) == 0) {
+				uintmax_t res;
+
+				*p = '\0';
+				if (flags & UNSIGNED)
+					res = wcstoimax(buf, NULL, base);
+				else
+					res = wcstoumax(buf, NULL, base);
+				if (flags & POINTER)
+					*va_arg(ap, void **) =
+					    (void *)(uintptr_t)res;
+				else if (flags & MAXINT)
+					*va_arg(ap, intmax_t *) = res;
+				else if (flags & LLONG)
+					*va_arg(ap, long long *) = res;
+				else if (flags & SIZEINT)
+					*va_arg(ap, ssize_t *) = res;
+				else if (flags & PTRINT)
+					*va_arg(ap, ptrdiff_t *) = res;
+				else if (flags & LONG)
+					*va_arg(ap, long *) = res;
+				else if (flags & SHORT)
+					*va_arg(ap, short *) = res;
+				else if (flags & SHORTSHORT)
+					*va_arg(ap, signed char *) = res;
+				else
+					*va_arg(ap, int *) = res;
+				nassigned++;
+			}
+			nread += p - buf;
+			nconversions++;
+			break;
+
+#ifdef FLOATING_POINT
+		case CT_FLOAT:
+			/* scan a floating point number as if by strtod */
+			if (width == 0 || width > sizeof(buf) /
+			    sizeof(*buf) - 1)
+				width = sizeof(buf) / sizeof(*buf) - 1;
+			if ((width = wparsefloat(fp, buf, buf + width)) == 0)
+				goto match_failure;
+			if ((flags & SUPPRESS) == 0) {
+				if (flags & LONGDBL) {
+					long double res = wcstold(buf, &p);
+					*va_arg(ap, long double *) = res;
+				} else if (flags & LONG) {
+					double res = wcstod(buf, &p);
+					*va_arg(ap, double *) = res;
+				} else {
+					float res = wcstof(buf, &p);
+					*va_arg(ap, float *) = res;
+				}
+				if (p - buf != (ptrdiff_t)width) abort();
+				nassigned++;
+			}
+			nread += width;
+			nconversions++;
+			break;
+#endif /* FLOATING_POINT */
+		}
+	}
+input_failure:
+	return (nconversions != 0 ? nassigned : EOF);
+match_failure:
+	return (nassigned);
+}
+#pragma GCC diagnostic pop
+
+int
+vfwscanf(FILE * __restrict fp, const wchar_t * __restrict fmt, __va_list ap)
+{
+	int r;
+
+	FLOCKFILE(fp);
+	r = __vfwscanf(fp, fmt, ap);
+	FUNLOCKFILE(fp);
+	return (r);
+}