--- vfscanf.c.orig 2004-11-25 11:38:35.000000000 -0800
+++ vfscanf.c 2005-02-23 19:24:50.000000000 -0800
@@ -40,6 +40,8 @@
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/stdio/vfscanf.c,v 1.37 2004/05/02 10:55:05 das Exp $");
+#include "xlocale_private.h"
+
#include "namespace.h"
#include <ctype.h>
#include <inttypes.h>
@@ -97,10 +99,21 @@
#define CT_INT 3 /* %[dioupxX] conversion */
#define CT_FLOAT 4 /* %[efgEFG] conversion */
-static const u_char *__sccl(char *, const u_char *);
-static int parsefloat(FILE *, char *, char *);
+static const u_char *__sccl(char *, const u_char *, locale_t);
+#ifndef NO_FLOATING_POINT
+static int parsefloat(FILE *, char **, size_t, locale_t);
+#endif /* !NO_FLOATING_POINT */
+/*
+ * For ppc, we need to have the 64-bit long double version defining storage for
+ * __scanfdebug, to be compatible with 10.3. For ppc64 and i386, we want the
+ * storage defined in the only version.
+ */
+#if defined(__ppc__) && !defined(BUILDING_VARIANT)
+extern int __scanfdebug;
+#else /* !__ppc__ || BUILDING_VARIANT */
int __scanfdebug = 0;
+#endif /* __ppc__ && !BUILDING_VARIANT */
__weak_reference(__vfscanf, vfscanf);
@@ -108,12 +121,24 @@
* __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_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(fp, fmt0, ap);
+ ret = __svfscanf_l(fp, loc, fmt0, ap);
FUNLOCKFILE(fp);
return (ret);
}
@@ -121,8 +146,8 @@
/*
* __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 */
@@ -132,7 +157,6 @@
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 %[...] */
@@ -140,24 +164,29 @@
wchar_t *wcp; /* handy wide character pointer */
wchar_t *wcp0; /* saves original value of wcp */
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;
}
@@ -181,6 +210,18 @@
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;
@@ -267,7 +308,7 @@
break;
case '[':
- fmt = __sccl(ccltab, fmt);
+ fmt = __sccl(ccltab, fmt, loc);
flags |= NOSKIP;
c = CT_CCL;
break;
@@ -288,7 +329,6 @@
break;
case 'n':
- nconversions++;
if (flags & SUPPRESS) /* ??? */
continue;
if (flags & SHORTSHORT)
@@ -330,7 +370,7 @@
* that suppress this.
*/
if ((flags & NOSKIP) == 0) {
- while (isspace(*fp->_p)) {
+ while (isspace_l(*fp->_p, loc)) {
nread++;
if (--fp->_r > 0)
fp->_p++;
@@ -360,7 +400,7 @@
wcp = NULL;
n = 0;
while (width != 0) {
- if (n == MB_CUR_MAX) {
+ if (n == mb_cur_max) {
fp->_flags |= __SERR;
goto input_failure;
}
@@ -368,7 +408,7 @@
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;
@@ -421,7 +461,6 @@
nread += r;
nassigned++;
}
- nconversions++;
break;
case CT_CCL:
@@ -440,7 +479,7 @@
n = 0;
nchars = 0;
while (width != 0) {
- if (n == MB_CUR_MAX) {
+ if (n == mb_cur_max) {
fp->_flags |= __SERR;
goto input_failure;
}
@@ -448,7 +487,7 @@
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;
@@ -456,8 +495,8 @@
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],
@@ -525,7 +564,6 @@
nassigned++;
}
nread += n;
- nconversions++;
break;
case CT_STRING:
@@ -540,8 +578,8 @@
else
wcp = &twc;
n = 0;
- while (!isspace(*fp->_p) && width != 0) {
- if (n == MB_CUR_MAX) {
+ while (!isspace_l(*fp->_p, loc) && width != 0) {
+ if (n == mb_cur_max) {
fp->_flags |= __SERR;
goto input_failure;
}
@@ -549,7 +587,7 @@
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;
@@ -557,7 +595,7 @@
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],
@@ -585,7 +623,7 @@
}
} 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;
@@ -595,7 +633,7 @@
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)
@@ -607,7 +645,6 @@
nread += p - p0;
nassigned++;
}
- nconversions++;
continue;
case CT_INT:
@@ -738,9 +775,9 @@
*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;
@@ -763,43 +800,52 @@
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) {
+ if (pbuf)
+ free(pbuf);
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;
}
- if (__scanfdebug && p - buf != width)
+ if (__scanfdebug && p - pbuf != width)
abort();
nassigned++;
}
nread += width;
- nconversions++;
+ free(pbuf);
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
@@ -807,9 +853,10 @@
* 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;
@@ -845,6 +892,7 @@
return (fmt - 1);
case '-':
+ {
/*
* A scanset of the form
* [01+-]
@@ -865,8 +913,8 @@
*/
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 = '-';
@@ -874,14 +922,14 @@
}
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;
}
@@ -901,7 +949,7 @@
return (fmt);
#endif
break;
-
+ }
case ']': /* end of scanset */
return (fmt);
@@ -915,7 +963,7 @@
#ifndef NO_FLOATING_POINT
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;
@@ -924,9 +972,18 @@
S_DIGITS, S_FRAC, S_EXP, S_EXPDIGITS
} state = S_START;
unsigned char c;
- char decpt = *localeconv()->decimal_point;
+ char decpt = *localeconv_l(loc)->decimal_point;
_Bool gotmantdig = 0, ishex = 0;
+ char *b, *e;
+ size_t s;
+ s = (width == 0 ? BUF : width + 1);
+ b = (char *)malloc(s);
+ if (b == 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
@@ -936,8 +993,8 @@
* 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) {
@@ -997,7 +1054,7 @@
if (c == ')') {
commit = p;
infnanpos = -2;
- } else if (!isalnum(c) && c != '_')
+ } else if (!isalnum_l(c, loc) && c != '_')
goto parsedone;
break;
}
@@ -1013,7 +1070,7 @@
goto reswitch;
}
case S_DIGITS:
- if ((ishex && isxdigit(c)) || isdigit(c))
+ if ((ishex && isxdigit_l(c, loc)) || isdigit_l(c, loc))
gotmantdig = 1;
else {
state = S_FRAC;
@@ -1030,7 +1087,7 @@
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
@@ -1043,7 +1100,7 @@
else
goto reswitch;
case S_EXPDIGITS:
- if (isdigit(c))
+ if (isdigit_l(c, loc))
commit = p;
else
goto parsedone;
@@ -1051,6 +1108,17 @@
default:
abort();
}
+ if (p >= e) {
+ size_t diff = (p - b);
+ s += BUF;
+ b = (char *)reallocf(b, s);
+ if (b == NULL) {
+ *buf = NULL;
+ return 0;
+ }
+ e = b + (s - 1);
+ p = b + diff;
+ }
*p++ = c;
if (--fp->_r > 0)
fp->_p++;
@@ -1062,6 +1130,7 @@
while (commit < --p)
__ungetc(*(u_char *)p, fp);
*++commit = '\0';
- return (commit - buf);
+ *buf = b;
+ return (commit - b);
}
#endif