Fix sscanf/wcstod parsing of NaNs.
The parsefloat routines -- which let us pass NaNs and infinities on to
strto(f|d|ld) -- come from NetBSD.
Also fix LP64's strtold to return a NaN, and fix all the architectures
to return quiet NaNs.
Also fix wcstof/wcstod/wcstold to use parsefloat so they support hex
floats.
Lots of new tests.
Bug: http://b/31101647
Change-Id: Id7d46ac2d8acb8770b5e8c445e87cfabfde6f111
diff --git a/libc/upstream-openbsd/android/include/gd_qnan.h b/libc/upstream-openbsd/android/include/gd_qnan.h
index e8e907b..e5bf973 100644
--- a/libc/upstream-openbsd/android/include/gd_qnan.h
+++ b/libc/upstream-openbsd/android/include/gd_qnan.h
@@ -14,35 +14,20 @@
* limitations under the License.
*/
-#if __arm__
+//
+// The values in this file came from reading the bits of <math.h>'s NAN back from a union.
+//
-#define f_QNAN 0xffffffff
-
-#define d_QNAN0 0xffffffff
-#define d_QNAN1 0xffffffff
-
-#elif __mips__
-
-#define f_QNAN 0x7fbfffff
-
-#define d_QNAN0 0x7ff7ffff
-#define d_QNAN1 0xffffffff
-
-#else
-
-#define f_QNAN 0xffc00000
+#define f_QNAN 0x7fc00000
#define d_QNAN0 0x00000000
-#define d_QNAN1 0xfff80000
+#define d_QNAN1 0x7ff80000
-#endif
-
-/* long double. */
#if __LP64__
-#define ld_QNAN0 0x7fff8000
+#define ld_QNAN0 0x00000000
#define ld_QNAN1 0x00000000
#define ld_QNAN2 0x00000000
-#define ld_QNAN3 0x00000000
+#define ld_QNAN3 0x7fff8000
#else
-/* sizeof(long double) == sizeof(double), so we shouldn't be trying to use these constants. */
+// LP32 sizeof(long double) == sizeof(double), so LP32 shouldn't try to use these constants.
#endif
diff --git a/libc/upstream-openbsd/lib/libc/locale/_wcstod.h b/libc/upstream-openbsd/lib/libc/locale/_wcstod.h
deleted file mode 100644
index ae993ad..0000000
--- a/libc/upstream-openbsd/lib/libc/locale/_wcstod.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/* $OpenBSD: _wcstod.h,v 1.2 2013/06/02 15:22:20 matthew Exp $ */
-/* $NetBSD: wcstod.c,v 1.4 2001/10/28 12:08:43 yamt Exp $ */
-
-/*-
- * Copyright (c)1999, 2000, 2001 Citrus Project,
- * All rights reserved.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $Citrus: xpg4dl/FreeBSD/lib/libc/locale/wcstod.c,v 1.2 2001/09/27 16:23:57 yamt Exp $
- */
-
-/*
- * function template for wcstof, wcstod and wcstold.
- *
- * parameters:
- * FUNCNAME : function name
- * float_type : return type
- * STRTOD_FUNC : conversion function
- */
-
-float_type
-FUNCNAME(const wchar_t *nptr, wchar_t **endptr)
-{
- const wchar_t *src;
- size_t size;
- const wchar_t *start;
- const wchar_t *aftersign;
-
- /*
- * check length of string and call strtod
- */
- src = nptr;
-
- /* skip space first */
- while (iswspace(*src)) {
- src++;
- }
-
- /* get length of string */
- start = src;
- if (*src && wcschr(L"+-", *src))
- src++;
- aftersign = src;
- if (wcsncasecmp(src, L"inf", 3) == 0) {
- src += 3;
- if (wcsncasecmp(src, L"inity", 5) == 0)
- src += 5;
- goto match;
- }
- if (wcsncasecmp(src, L"nan", 3) == 0) {
- src += 3;
- if (*src == L'(') {
- size = 1;
- while (src[size] != L'\0' && src[size] != L')')
- size++;
- if (src[size] == L')')
- src += size + 1;
- }
- goto match;
- }
- size = wcsspn(src, L"0123456789");
- src += size;
- if (*src == L'.') {/* XXX use localeconv */
- src++;
- size = wcsspn(src, L"0123456789");
- src += size;
- }
- if (*src && wcschr(L"Ee", *src)) {
- src++;
- if (*src && wcschr(L"+-", *src))
- src++;
- size = wcsspn(src, L"0123456789");
- src += size;
- }
-match:
- size = src - start;
-
- /*
- * convert to a char-string and pass it to strtod.
- */
- if (src > aftersign) {
- mbstate_t st;
- char *buf;
- char *end;
- const wchar_t *s;
- size_t size_converted;
- float_type result;
- size_t bufsize;
-
- s = start;
- memset(&st, 0, sizeof(st));
- bufsize = wcsnrtombs(NULL, &s, size, 0, &st);
-
- buf = malloc(bufsize + 1);
- if (!buf) {
- errno = ENOMEM; /* XXX */
- goto fail;
- }
-
- s = start;
- memset(&st, 0, sizeof(st));
- size_converted = wcsnrtombs(buf, &s, size, bufsize, &st);
- if (size_converted != bufsize) {
- /* XXX should not happen */
- free(buf);
- errno = EILSEQ;
- goto fail;
- }
-
- buf[bufsize] = 0;
- result = STRTOD_FUNC(buf, &end);
-
- if (endptr) {
- const char *s = buf;
- memset(&st, 0, sizeof(st));
- size = mbsnrtowcs(NULL, &s, end - buf, 0, &st);
-
- /* LINTED bad interface */
- *endptr = (wchar_t*)start + size;
- }
-
- free(buf);
-
- return result;
- }
-
-fail:
- if (endptr)
- /* LINTED bad interface */
- *endptr = (wchar_t*)nptr;
-
- return 0;
-}
diff --git a/libc/upstream-openbsd/lib/libc/locale/wcstod.c b/libc/upstream-openbsd/lib/libc/locale/wcstod.c
deleted file mode 100644
index 957d0a1..0000000
--- a/libc/upstream-openbsd/lib/libc/locale/wcstod.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* $OpenBSD: wcstod.c,v 1.3 2009/01/13 18:18:31 kettenis Exp $ */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-#include <wctype.h>
-
-#define FUNCNAME wcstod
-typedef double float_type;
-#define STRTOD_FUNC strtod
-
-#include "_wcstod.h"
diff --git a/libc/upstream-openbsd/lib/libc/locale/wcstof.c b/libc/upstream-openbsd/lib/libc/locale/wcstof.c
deleted file mode 100644
index 40d76c7..0000000
--- a/libc/upstream-openbsd/lib/libc/locale/wcstof.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* $OpenBSD: wcstof.c,v 1.1 2009/01/13 18:18:31 kettenis Exp $ */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-#include <wctype.h>
-
-#define FUNCNAME wcstof
-typedef float float_type;
-#define STRTOD_FUNC strtof
-
-#include "_wcstod.h"
diff --git a/libc/upstream-openbsd/lib/libc/locale/wcstold.c b/libc/upstream-openbsd/lib/libc/locale/wcstold.c
deleted file mode 100644
index a642542..0000000
--- a/libc/upstream-openbsd/lib/libc/locale/wcstold.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* $OpenBSD: wcstold.c,v 1.1 2009/01/13 18:18:31 kettenis Exp $ */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <wchar.h>
-#include <wctype.h>
-
-#define FUNCNAME wcstold
-typedef long double float_type;
-#define STRTOD_FUNC strtold
-
-#include "_wcstod.h"
diff --git a/libc/upstream-openbsd/lib/libc/stdio/floatio.h b/libc/upstream-openbsd/lib/libc/stdio/floatio.h
deleted file mode 100644
index 9769030..0000000
--- a/libc/upstream-openbsd/lib/libc/stdio/floatio.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/* $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/upstream-openbsd/lib/libc/stdio/vfscanf.c b/libc/upstream-openbsd/lib/libc/stdio/vfscanf.c
deleted file mode 100644
index abefe32..0000000
--- a/libc/upstream-openbsd/lib/libc/stdio/vfscanf.c
+++ /dev/null
@@ -1,969 +0,0 @@
-/* $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 == MB_CUR_MAX) {
- fp->_flags |= __SERR;
- goto input_failure;
- }
- buf[n++] = *fp->_p;
- fp->_p++;
- fp->_r--;
- bzero(&mbs, 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) < 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 == MB_CUR_MAX) {
- fp->_flags |= __SERR;
- goto input_failure;
- }
- buf[n++] = *fp->_p;
- fp->_p++;
- fp->_r--;
- bzero(&mbs, 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 == MB_CUR_MAX) {
- fp->_flags |= __SERR;
- goto input_failure;
- }
- buf[n++] = *fp->_p;
- fp->_p++;
- fp->_r--;
- bzero(&mbs, 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 */
-#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 | DPTOK | EXPOK;
- for (p = buf; width; width--) {
- c = *fp->_p;
- /*
- * This code mimicks the integer conversion
- * code, but is much simpler.
- */
- switch (c) {
-
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- case '8': case '9':
- flags &= ~(SIGNOK | NDIGITS);
- goto fok;
-
- case '+': case '-':
- if (flags & SIGNOK) {
- flags &= ~SIGNOK;
- goto fok;
- }
- break;
- case '.':
- if (flags & DPTOK) {
- flags &= ~(SIGNOK | DPTOK);
- goto fok;
- }
- break;
- case 'e': case 'E':
- /* no exponent without some digits */
- if ((flags&(NDIGITS|EXPOK)) == EXPOK) {
- flags =
- (flags & ~(EXPOK|DPTOK)) |
- SIGNOK | NDIGITS;
- goto fok;
- }
- break;
- }
- break;
- fok:
- *p++ = c;
- if (--fp->_r > 0)
- fp->_p++;
- else if (__srefill(fp))
- break; /* EOF */
- }
- /*
- * If no digits, might be missing exponent digits
- * (just give back the exponent) or might be missing
- * regular digits, but had sign and/or decimal point.
- */
- if (flags & NDIGITS) {
- if (flags & EXPOK) {
- /* no digits at all */
- while (p > buf)
- ungetc(*(u_char *)--p, fp);
- goto match_failure;
- }
- /* just a bad exponent (e and maybe sign) */
- c = *(u_char *)--p;
- if (c != 'e' && c != 'E') {
- (void) ungetc(c, fp);/* sign */
- c = *(u_char *)--p;
- }
- (void) ungetc(c, fp);
- }
- if ((flags & SUPPRESS) == 0) {
- *p = '\0';
- if (flags & LONGDBL) {
- long double res = strtold(buf,
- (char **)NULL);
- *va_arg(ap, long double *) = res;
- } else if (flags & LONG) {
- double res = strtod(buf, (char **)NULL);
- *va_arg(ap, double *) = res;
- } else {
- float res = strtof(buf, (char **)NULL);
- *va_arg(ap, float *) = res;
- }
- nassigned++;
- }
- nread += p - buf;
- 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/upstream-openbsd/lib/libc/stdio/vfwscanf.c b/libc/upstream-openbsd/lib/libc/stdio/vfwscanf.c
deleted file mode 100644
index cbb36be..0000000
--- a/libc/upstream-openbsd/lib/libc/stdio/vfwscanf.c
+++ /dev/null
@@ -1,798 +0,0 @@
-/* $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))
-
-/*
- * 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;
-#ifdef FLOATING_POINT
- wchar_t decimal_point = 0;
-#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;
- 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;
- bzero(&mbs, 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;
- bzero(&mbs, 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 *);
- bzero(&mbs, 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;
- flags |= SIGNOK | NDIGITS | DPTOK | EXPOK;
- for (p = buf; width; width--) {
- c = __fgetwc_unlock(fp);
- /*
- * This code mimicks the integer conversion
- * code, but is much simpler.
- */
- switch (c) {
-
- case '0': case '1': case '2': case '3':
- case '4': case '5': case '6': case '7':
- case '8': case '9':
- flags &= ~(SIGNOK | NDIGITS);
- goto fok;
-
- case '+': case '-':
- if (flags & SIGNOK) {
- flags &= ~SIGNOK;
- goto fok;
- }
- break;
- case 'e': case 'E':
- /* no exponent without some digits */
- if ((flags&(NDIGITS|EXPOK)) == EXPOK) {
- flags =
- (flags & ~(EXPOK|DPTOK)) |
- SIGNOK | NDIGITS;
- goto fok;
- }
- break;
- default:
- if (decimal_point == 0) {
- bzero(&mbs, sizeof(mbs));
- nconv = mbrtowc(&decimal_point,
- localeconv()->decimal_point,
- MB_CUR_MAX, &mbs);
- if (nconv == 0 ||
- nconv == (size_t)-1 ||
- nconv == (size_t)-2)
- decimal_point = '.';
- }
- if (c == decimal_point &&
- (flags & DPTOK)) {
- flags &= ~(SIGNOK | DPTOK);
- goto fok;
- }
- break;
- }
- if (c != WEOF)
- __ungetwc(c, fp);
- break;
- fok:
- *p++ = c;
- }
- /*
- * If no digits, might be missing exponent digits
- * (just give back the exponent) or might be missing
- * regular digits, but had sign and/or decimal point.
- */
- if (flags & NDIGITS) {
- if (flags & EXPOK) {
- /* no digits at all */
- while (p > buf)
- __ungetwc(*--p, fp);
- goto match_failure;
- }
- /* just a bad exponent (e and maybe sign) */
- c = *--p;
- if (c != 'e' && c != 'E') {
- __ungetwc(c, fp);/* sign */
- c = *--p;
- }
- __ungetwc(c, fp);
- }
- if ((flags & SUPPRESS) == 0) {
- *p = 0;
- if (flags & LONGDBL) {
- long double res = wcstold(buf, NULL);
- *va_arg(ap, long double *) = res;
- } else if (flags & LONG) {
- double res = wcstod(buf, NULL);
- *va_arg(ap, double *) = res;
- } else {
- float res = wcstof(buf, NULL);
- *va_arg(ap, float *) = res;
- }
- nassigned++;
- }
- nread += p - buf;
- nconversions++;
- break;
-#endif /* FLOATING_POINT */
- }
- }
-input_failure:
- return (nconversions != 0 ? nassigned : EOF);
-match_failure:
- return (nassigned);
-}
-
-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);
-}