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stdio/FreeBSD/vfscanf.c.patch /dev/null Libc-763.11
--- /dev/null
+++ Libc/Libc-763.11/stdio/FreeBSD/vfscanf.c.patch
@@ -0,0 +1,612 @@
+--- vfscanf.c.orig	2010-07-15 10:03:36.000000000 -0700
++++ vfscanf.c	2010-07-15 10:18:58.000000000 -0700
+@@ -36,6 +36,8 @@ static char sccsid[] = "@(#)vfscanf.c	8.
+ #include <sys/cdefs.h>
+ __FBSDID("$FreeBSD: src/lib/libc/stdio/vfscanf.c,v 1.43 2009/01/19 06:19:51 das Exp $");
+ 
++#include "xlocale_private.h"
++
+ #include "namespace.h"
+ #include <ctype.h>
+ #include <inttypes.h>
+@@ -46,6 +48,7 @@ __FBSDID("$FreeBSD: src/lib/libc/stdio/v
+ #include <string.h>
+ #include <wchar.h>
+ #include <wctype.h>
++#include <pthread.h>
+ #include "un-namespace.h"
+ 
+ #include "collate.h"
+@@ -93,9 +96,9 @@ __FBSDID("$FreeBSD: src/lib/libc/stdio/v
+ #define	CT_INT		3	/* %[dioupxX] conversion */
+ #define	CT_FLOAT	4	/* %[efgEFG] conversion */
+ 
+-static const u_char *__sccl(char *, const u_char *);
++static const u_char *__sccl(char *, const u_char *, locale_t);
+ #ifndef NO_FLOATING_POINT
+-static int parsefloat(FILE *, char *, char *);
++static int parsefloat(FILE *, char **, size_t, locale_t);
+ #endif
+ 
+ __weak_reference(__vfscanf, vfscanf);
+@@ -104,12 +107,24 @@ __weak_reference(__vfscanf, vfscanf);
+  * __vfscanf - MT-safe version
+  */
+ int
+-__vfscanf(FILE *fp, char const *fmt0, va_list ap)
++__vfscanf(FILE * __restrict fp, char const * __restrict fmt0, va_list ap)
+ {
+ 	int ret;
+ 
+ 	FLOCKFILE(fp);
+-	ret = __svfscanf(fp, fmt0, ap);
++	ret = __svfscanf_l(fp, __current_locale(), fmt0, ap);
++	FUNLOCKFILE(fp);
++	return (ret);
++}
++
++int
++vfscanf_l(FILE * __restrict fp, locale_t loc, char const * __restrict fmt0, va_list ap)
++{
++	int ret;
++
++	NORMALIZE_LOCALE(loc);
++	FLOCKFILE(fp);
++	ret = __svfscanf_l(fp, loc, fmt0, ap);
+ 	FUNLOCKFILE(fp);
+ 	return (ret);
+ }
+@@ -117,8 +132,8 @@ __vfscanf(FILE *fp, char const *fmt0, va
+ /*
+  * __svfscanf - non-MT-safe version of __vfscanf
+  */
+-int
+-__svfscanf(FILE *fp, const char *fmt0, va_list ap)
++__private_extern__ int
++__svfscanf_l(FILE * __restrict fp, locale_t loc, const char * __restrict fmt0, va_list ap)
+ {
+ 	const u_char *fmt = (const u_char *)fmt0;
+ 	int c;			/* character from format, or conversion */
+@@ -128,36 +143,43 @@ __svfscanf(FILE *fp, const char *fmt0, v
+ 	int flags;		/* flags as defined above */
+ 	char *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 conversion function */
+ 	char ccltab[256];	/* character class table for %[...] */
+ 	char buf[BUF];		/* buffer for numeric and mb conversions */
+ 	wchar_t *wcp;		/* handy wide character pointer */
+ 	size_t nconv;		/* length of multibyte sequence converted */
++	int index;		/* %index$, zero if unset */
++	va_list ap_orig;	/* to reset ap to first argument */
+ 	static const mbstate_t initial;
+ 	mbstate_t mbs;
++	int mb_cur_max;
+ 
+ 	/* `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 };
+ 
++	NORMALIZE_LOCALE(loc);
++	mb_cur_max = MB_CUR_MAX_L(loc);
+ 	ORIENT(fp, -1);
+ 
+ 	nassigned = 0;
+-	nconversions = 0;
+ 	nread = 0;
++	va_copy(ap_orig, ap);
+ 	for (;;) {
+ 		c = *fmt++;
+ 		if (c == 0)
+ 			return (nassigned);
+-		if (isspace(c)) {
+-			while ((fp->_r > 0 || __srefill(fp) == 0) && isspace(*fp->_p))
++		if (isspace_l(c, loc)) {
++			while ((fp->_r > 0 || __srefill(fp) == 0) && isspace_l(*fp->_p, loc))
+ 				nread++, fp->_r--, fp->_p++;
+ 			continue;
+ 		}
+-		if (c != '%')
++		if (c != '%') {
++			if (fp->_r <= 0 && __srefill(fp))
++				goto input_failure;
+ 			goto literal;
++		}
+ 		width = 0;
+ 		flags = 0;
+ 		/*
+@@ -167,15 +189,35 @@ __svfscanf(FILE *fp, const char *fmt0, v
+ again:		c = *fmt++;
+ 		switch (c) {
+ 		case '%':
++			/* Consume leading white space */
++			for(;;) {
++				if (fp->_r <= 0 && __srefill(fp))
++					goto input_failure;
++				if (!isspace_l(*fp->_p, loc))
++					break;
++				nread++;
++				fp->_r--;
++				fp->_p++;
++			}
+ literal:
+-			if (fp->_r <= 0 && __srefill(fp))
+-				goto input_failure;
+ 			if (*fp->_p != c)
+ 				goto match_failure;
+ 			fp->_r--, fp->_p++;
+ 			nread++;
+ 			continue;
+ 
++		case '$':
++			index = width;
++			if (index < 1 || index > NL_ARGMAX || fmt[-3] != '%') {
++				goto input_failure;
++			}
++			width = 0;
++			va_end(ap);
++			va_copy(ap, ap_orig); /* reset to %1$ */
++			for (; index > 1; index--) {
++				va_arg(ap, void*);
++			}
++			goto again;
+ 		case '*':
+ 			flags |= SUPPRESS;
+ 			goto again;
+@@ -262,7 +304,7 @@ literal:
+ 			break;
+ 
+ 		case '[':
+-			fmt = __sccl(ccltab, fmt);
++			fmt = __sccl(ccltab, fmt, loc);
+ 			flags |= NOSKIP;
+ 			c = CT_CCL;
+ 			break;
+@@ -283,27 +325,28 @@ literal:
+ 			break;
+ 
+ 		case 'n':
+-			nconversions++;
+-			if (flags & SUPPRESS)	/* ??? */
++		{
++			void *ptr = va_arg(ap, void *);
++			if ((ptr == NULL) || (flags & SUPPRESS))	/* ??? */
+ 				continue;
+-			if (flags & SHORTSHORT)
+-				*va_arg(ap, char *) = nread;
++			else if (flags & SHORTSHORT)
++				*(char *)ptr = nread;
+ 			else if (flags & SHORT)
+-				*va_arg(ap, short *) = nread;
++				*(short *)ptr = nread;
+ 			else if (flags & LONG)
+-				*va_arg(ap, long *) = nread;
++				*(long *)ptr = nread;
+ 			else if (flags & LONGLONG)
+-				*va_arg(ap, long long *) = nread;
++				*(long long *)ptr = nread;
+ 			else if (flags & INTMAXT)
+-				*va_arg(ap, intmax_t *) = nread;
++				*(intmax_t *)ptr = nread;
+ 			else if (flags & SIZET)
+-				*va_arg(ap, size_t *) = nread;
++				*(size_t *)ptr = nread;
+ 			else if (flags & PTRDIFFT)
+-				*va_arg(ap, ptrdiff_t *) = nread;
++				*(ptrdiff_t *)ptr = nread;
+ 			else
+-				*va_arg(ap, int *) = nread;
++				*(int *)ptr = nread;
+ 			continue;
+-
++		}
+ 		default:
+ 			goto match_failure;
+ 
+@@ -325,7 +368,7 @@ literal:
+ 		 * that suppress this.
+ 		 */
+ 		if ((flags & NOSKIP) == 0) {
+-			while (isspace(*fp->_p)) {
++			while (isspace_l(*fp->_p, loc)) {
+ 				nread++;
+ 				if (--fp->_r > 0)
+ 					fp->_p++;
+@@ -355,7 +398,7 @@ literal:
+ 					wcp = NULL;
+ 				n = 0;
+ 				while (width != 0) {
+-					if (n == MB_CUR_MAX) {
++					if (n == mb_cur_max) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+ 					}
+@@ -363,7 +406,7 @@ literal:
+ 					fp->_p++;
+ 					fp->_r--;
+ 					mbs = initial;
+-					nconv = mbrtowc(wcp, buf, n, &mbs);
++					nconv = mbrtowc_l(wcp, buf, n, &mbs, loc);
+ 					if (nconv == (size_t)-1) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+@@ -416,7 +459,6 @@ literal:
+ 				nread += r;
+ 				nassigned++;
+ 			}
+-			nconversions++;
+ 			break;
+ 
+ 		case CT_CCL:
+@@ -435,7 +477,7 @@ literal:
+ 				n = 0;
+ 				nchars = 0;
+ 				while (width != 0) {
+-					if (n == MB_CUR_MAX) {
++					if (n == mb_cur_max) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+ 					}
+@@ -443,7 +485,7 @@ literal:
+ 					fp->_p++;
+ 					fp->_r--;
+ 					mbs = initial;
+-					nconv = mbrtowc(wcp, buf, n, &mbs);
++					nconv = mbrtowc_l(wcp, buf, n, &mbs, loc);
+ 					if (nconv == (size_t)-1) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+@@ -451,8 +493,8 @@ literal:
+ 					if (nconv == 0)
+ 						*wcp = L'\0';
+ 					if (nconv != (size_t)-2) {
+-						if (wctob(*wcp) != EOF &&
+-						    !ccltab[wctob(*wcp)]) {
++						if (wctob_l(*wcp, loc) != EOF &&
++						    !ccltab[wctob_l(*wcp, loc)]) {
+ 							while (n != 0) {
+ 								n--;
+ 								__ungetc(buf[n],
+@@ -520,7 +562,6 @@ literal:
+ 				nassigned++;
+ 			}
+ 			nread += n;
+-			nconversions++;
+ 			break;
+ 
+ 		case CT_STRING:
+@@ -535,8 +576,8 @@ literal:
+ 				else
+ 					wcp = &twc;
+ 				n = 0;
+-				while (!isspace(*fp->_p) && width != 0) {
+-					if (n == MB_CUR_MAX) {
++				while (width != 0) {
++					if (n == mb_cur_max) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+ 					}
+@@ -544,7 +585,7 @@ literal:
+ 					fp->_p++;
+ 					fp->_r--;
+ 					mbs = initial;
+-					nconv = mbrtowc(wcp, buf, n, &mbs);
++					nconv = mbrtowc_l(wcp, buf, n, &mbs, loc);
+ 					if (nconv == (size_t)-1) {
+ 						fp->_flags |= __SERR;
+ 						goto input_failure;
+@@ -552,7 +593,7 @@ literal:
+ 					if (nconv == 0)
+ 						*wcp = L'\0';
+ 					if (nconv != (size_t)-2) {
+-						if (iswspace(*wcp)) {
++						if (iswspace_l(*wcp, loc)) {
+ 							while (n != 0) {
+ 								n--;
+ 								__ungetc(buf[n],
+@@ -580,7 +621,7 @@ literal:
+ 				}
+ 			} else if (flags & SUPPRESS) {
+ 				n = 0;
+-				while (!isspace(*fp->_p)) {
++				while (!isspace_l(*fp->_p, loc)) {
+ 					n++, fp->_r--, fp->_p++;
+ 					if (--width == 0)
+ 						break;
+@@ -590,7 +631,7 @@ literal:
+ 				nread += n;
+ 			} else {
+ 				p0 = p = va_arg(ap, char *);
+-				while (!isspace(*fp->_p)) {
++				while (!isspace_l(*fp->_p, loc)) {
+ 					fp->_r--;
+ 					*p++ = *fp->_p++;
+ 					if (--width == 0)
+@@ -602,7 +643,6 @@ literal:
+ 				nread += p - p0;
+ 				nassigned++;
+ 			}
+-			nconversions++;
+ 			continue;
+ 
+ 		case CT_INT:
+@@ -733,9 +773,9 @@ literal:
+ 
+ 				*p = 0;
+ 				if ((flags & UNSIGNED) == 0)
+-				    res = strtoimax(buf, (char **)NULL, base);
++				    res = strtoimax_l(buf, (char **)NULL, base, loc);
+ 				else
+-				    res = strtoumax(buf, (char **)NULL, base);
++				    res = strtoumax_l(buf, (char **)NULL, base, loc);
+ 				if (flags & POINTER)
+ 					*va_arg(ap, void **) =
+ 							(void *)(uintptr_t)res;
+@@ -758,41 +798,46 @@ literal:
+ 				nassigned++;
+ 			}
+ 			nread += p - buf;
+-			nconversions++;
+ 			break;
+ 
+ #ifndef NO_FLOATING_POINT
+ 		case CT_FLOAT:
++		{
++			char *pbuf;
+ 			/* 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)
++			if ((width = parsefloat(fp, &pbuf, width, loc)) == 0)
+ 				goto match_failure;
+ 			if ((flags & SUPPRESS) == 0) {
+ 				if (flags & LONGDBL) {
+-					long double res = strtold(buf, &p);
++					long double res = strtold_l(pbuf, &p, loc);
+ 					*va_arg(ap, long double *) = res;
+ 				} else if (flags & LONG) {
+-					double res = strtod(buf, &p);
++					double res = strtod_l(pbuf, &p, loc);
+ 					*va_arg(ap, double *) = res;
+ 				} else {
+-					float res = strtof(buf, &p);
++					float res = strtof_l(pbuf, &p, loc);
+ 					*va_arg(ap, float *) = res;
+ 				}
+ 				nassigned++;
+ 			}
+ 			nread += width;
+-			nconversions++;
+ 			break;
++		}
+ #endif /* !NO_FLOATING_POINT */
+ 		}
+ 	}
+ input_failure:
+-	return (nconversions != 0 ? nassigned : EOF);
++	return (nassigned ? nassigned : EOF);
+ match_failure:
+ 	return (nassigned);
+ }
+ 
++int
++__svfscanf(FILE * __restrict fp, const char * __restrict fmt0, va_list ap)
++{
++	return __svfscanf_l(fp, __current_locale(), fmt0, ap);
++}
++
+ /*
+  * Fill in the given table from the scanset at the given format
+  * (just after `[').  Return a pointer to the character past the
+@@ -800,9 +845,10 @@ match_failure:
+  * considered part of the scanset.
+  */
+ static const u_char *
+-__sccl(tab, fmt)
++__sccl(tab, fmt, loc)
+ 	char *tab;
+ 	const u_char *fmt;
++	locale_t loc;
+ {
+ 	int c, n, v, i;
+ 
+@@ -838,6 +884,7 @@ doswitch:
+ 			return (fmt - 1);
+ 
+ 		case '-':
++		{
+ 			/*
+ 			 * A scanset of the form
+ 			 *	[01+-]
+@@ -858,8 +905,8 @@ doswitch:
+ 			 */
+ 			n = *fmt;
+ 			if (n == ']'
+-			    || (__collate_load_error ? n < c :
+-				__collate_range_cmp (n, c) < 0
++			    || (loc->__collate_load_error ? n < c :
++				__collate_range_cmp (n, c, loc) < 0
+ 			       )
+ 			   ) {
+ 				c = '-';
+@@ -867,14 +914,14 @@ doswitch:
+ 			}
+ 			fmt++;
+ 			/* fill in the range */
+-			if (__collate_load_error) {
++			if (loc->__collate_load_error) {
+ 				do {
+ 					tab[++c] = v;
+ 				} while (c < n);
+ 			} else {
+ 				for (i = 0; i < 256; i ++)
+-					if (   __collate_range_cmp (c, i) < 0
+-					    && __collate_range_cmp (i, n) <= 0
++					if (   __collate_range_cmp (c, i, loc) < 0
++					    && __collate_range_cmp (i, n, loc) <= 0
+ 					   )
+ 						tab[i] = v;
+ 			}
+@@ -894,7 +941,7 @@ doswitch:
+ 				return (fmt);
+ #endif
+ 			break;
+-
++		}
+ 		case ']':		/* end of scanset */
+ 			return (fmt);
+ 
+@@ -907,8 +954,54 @@ doswitch:
+ }
+ 
+ #ifndef NO_FLOATING_POINT
++/*
++ * Maintain a per-thread parsefloat buffer, shared by __svfscanf_l and
++ * __vfwscanf.
++ */
++#ifdef BUILDING_VARIANT
++extern char *__parsefloat_buf(size_t s);
++#else /* !BUILDING_VARIANT */
++__private_extern__ char *
++__parsefloat_buf(size_t s)
++{
++	char *b;
++	static pthread_key_t    parsefloat_tsd_key = (pthread_key_t)-1;
++	static pthread_mutex_t  parsefloat_tsd_lock = PTHREAD_MUTEX_INITIALIZER;
++	static size_t bsiz = 0;
++
++	if (parsefloat_tsd_key == (pthread_key_t)-1) {
++		pthread_mutex_lock(&parsefloat_tsd_lock);
++		if (parsefloat_tsd_key == (pthread_key_t)-1) {
++			parsefloat_tsd_key = __LIBC_PTHREAD_KEY_PARSEFLOAT;
++			pthread_key_init_np(parsefloat_tsd_key, free);
++		}
++		pthread_mutex_unlock(&parsefloat_tsd_lock);
++	}
++	if ((b = (char *)pthread_getspecific(parsefloat_tsd_key)) == NULL) {
++		bsiz = s > BUF ? s : BUF;
++		b = (char *)malloc(bsiz);
++		if (b == NULL) {
++			bsiz = 0;
++			return NULL;
++		}
++		pthread_setspecific(parsefloat_tsd_key, b);
++		return b;
++	}
++	if (s > bsiz) {
++		b = (char *)reallocf(b, s);
++		pthread_setspecific(parsefloat_tsd_key, b);
++		if (b == NULL) {
++			bsiz = 0;
++			return NULL;
++		}
++		bsiz = s;
++	}
++	return b;
++}
++#endif /* BUILDING_VARIANT */
++
+ static int
+-parsefloat(FILE *fp, char *buf, char *end)
++parsefloat(FILE *fp, char **buf, size_t width, locale_t loc)
+ {
+ 	char *commit, *p;
+ 	int infnanpos = 0, decptpos = 0;
+@@ -917,9 +1010,18 @@ parsefloat(FILE *fp, char *buf, char *en
+ 		S_DIGITS, S_DECPT, S_FRAC, S_EXP, S_EXPDIGITS
+ 	} state = S_START;
+ 	unsigned char c;
+-	const char *decpt = localeconv()->decimal_point;
++	const char *decpt = localeconv_l(loc)->decimal_point;
+ 	_Bool gotmantdig = 0, ishex = 0;
+-
++	char *b;
++	char *e;
++	size_t s;
++
++	s = (width == 0 ? BUF : (width + 1));
++	if ((b = __parsefloat_buf(s)) == NULL) {
++		*buf = NULL;
++		return 0;
++	}
++	e = b + (s - 1);
+ 	/*
+ 	 * We set commit = p whenever the string we have read so far
+ 	 * constitutes a valid representation of a floating point
+@@ -929,8 +1031,8 @@ parsefloat(FILE *fp, char *buf, char *en
+ 	 * 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; ) {
++	commit = b - 1;
++	for (p = b; width == 0 || p < e; ) {
+ 		c = *fp->_p;
+ reswitch:
+ 		switch (state) {
+@@ -988,7 +1090,7 @@ reswitch:
+ 				if (c == ')') {
+ 					commit = p;
+ 					state = S_DONE;
+-				} else if (!isalnum(c) && c != '_')
++				} else if (!isalnum_l(c, loc) && c != '_')
+ 					goto parsedone;
+ 				break;
+ 			}
+@@ -1006,7 +1108,7 @@ reswitch:
+ 				goto reswitch;
+ 			}
+ 		case S_DIGITS:
+-			if ((ishex && isxdigit(c)) || isdigit(c)) {
++			if ((ishex && isxdigit_l(c, loc)) || isdigit_l(c, loc)) {
+ 				gotmantdig = 1;
+ 				commit = p;
+ 				break;
+@@ -1041,7 +1143,7 @@ reswitch:
+ 					goto parsedone;
+ 				else
+ 					state = S_EXP;
+-			} else if ((ishex && isxdigit(c)) || isdigit(c)) {
++			} else if ((ishex && isxdigit_l(c, loc)) || isdigit_l(c, loc)) {
+ 				commit = p;
+ 				gotmantdig = 1;
+ 			} else
+@@ -1054,13 +1156,26 @@ reswitch:
+ 			else
+ 				goto reswitch;
+ 		case S_EXPDIGITS:
+-			if (isdigit(c))
++			if (isdigit_l(c, loc))
+ 				commit = p;
+ 			else
+ 				goto parsedone;
+ 			break;
+ 		default:
+-			abort();
++			LIBC_ABORT("unknown state %d", state);
++		}
++		if (p >= e) {
++			ssize_t diff = (p - b);
++			ssize_t com = (commit - b);
++			s += BUF;
++			b = __parsefloat_buf(s);
++			if (b == NULL) {
++				*buf = NULL;
++				return 0;
++			}
++			e = b + (s - 1);
++			p = b + diff;
++			commit = b + com;
+ 		}
+ 		*p++ = c;
+ 		if (--fp->_r > 0)
+@@ -1073,6 +1188,7 @@ parsedone:
+ 	while (commit < --p)
+ 		__ungetc(*(u_char *)p, fp);
+ 	*++commit = '\0';
+-	return (commit - buf);
++	*buf = b;
++	return (commit - b);
+ }
+ #endif