NOTE: The canonical source of this file is maintained with the GNU C Library.
Bugs can be reported to bug-glibc@prep.ai.mit.edu.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef _LIBC
-# define HAVE_LIMITS_H 1
# define HAVE_MBLEN 1
# define HAVE_MBRLEN 1
# define HAVE_STRUCT_ERA_ENTRY 1
# define HAVE_TZNAME 1
# define HAVE_TZSET 1
# define MULTIBYTE_IS_FORMAT_SAFE 1
-# define STDC_HEADERS 1
# include "../locale/localeinfo.h"
#endif
-#if defined emacs && !defined HAVE_BCOPY
-# define HAVE_MEMCPY 1
-#endif
-
#include <ctype.h>
#include <sys/types.h> /* Some systems define `time_t' here. */
static const mbstate_t mbstate_zero;
#endif
-#if HAVE_LIMITS_H
-# include <limits.h>
-#endif
-
-#if STDC_HEADERS
-# include <stddef.h>
-# include <stdlib.h>
-# include <string.h>
-#else
-# ifndef HAVE_MEMCPY
-# define memcpy(d, s, n) bcopy ((s), (d), (n))
-# endif
-#endif
+#include <limits.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
#ifdef COMPILE_WIDE
# include <endian.h>
# define L_(Str) Str
# define NLW(Sym) Sym
-# if !defined STDC_HEADERS && !defined HAVE_MEMCPY
-# define MEMCPY(d, s, n) bcopy ((s), (d), (n))
-# else
-# define MEMCPY(d, s, n) memcpy ((d), (s), (n))
-# endif
+# define MEMCPY(d, s, n) memcpy (d, s, n)
# define STRLEN(s) strlen (s)
# ifdef _LIBC
# endif
#endif
-#ifndef __P
-# if defined __GNUC__ || (defined __STDC__ && __STDC__)
-# define __P(args) args
-# else
-# define __P(args) ()
-# endif /* GCC. */
-#endif /* Not __P. */
-
-#ifndef PTR
-# ifdef __STDC__
-# define PTR void *
-# else
-# define PTR char *
-# endif
-#endif
-
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-
-#ifndef NULL
-# define NULL 0
-#endif
-
#define TYPE_SIGNED(t) ((t) -1 < 0)
/* Bound on length of the string representing an integer value of type t.
#ifdef _LIBC
-# define my_strftime_gmtime_r __gmtime_r
-# define my_strftime_localtime_r __localtime_r
# define tzname __tzname
# define tzset __tzset
-#else
-
-/* If we're a strftime substitute in a GNU program, then prefer gmtime
- to gmtime_r, since many gmtime_r implementations are buggy.
- Similarly for localtime_r. */
-
-# if ! HAVE_TM_GMTOFF
-static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_gmtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
-{
- struct tm *l = gmtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
-}
+#endif
-static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *));
-static struct tm *
-my_strftime_localtime_r (t, tp)
- const time_t *t;
- struct tm *tp;
-{
- struct tm *l = localtime (t);
- if (! l)
- return 0;
- *tp = *l;
- return tp;
-}
-# endif /* ! HAVE_TM_GMTOFF */
-#endif /* ! defined _LIBC */
+#if !HAVE_TM_GMTOFF
+/* Portable standalone applications should supply a "time_r.h" that
+ declares a POSIX-compliant localtime_r, for the benefit of older
+ implementations that lack localtime_r or have a nonstandard one.
+ See the gnulib time_r module for one way to implement this. */
+# include "time_r.h"
+# undef __gmtime_r
+# undef __localtime_r
+# define __gmtime_r gmtime_r
+# define __localtime_r localtime_r
+#endif
-#if !defined memset && !defined HAVE_MEMSET && !defined _LIBC
-/* Some systems lack the `memset' function and we don't want to
- introduce additional dependencies. */
-/* The SGI compiler reportedly barfs on the trailing null
- if we use a string constant as the initializer. 28 June 1997, rms. */
-static const CHAR_T spaces[16] = /* " " */
-{
- L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),
- L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ')
-};
-static const CHAR_T zeroes[16] = /* "0000000000000000" */
-{
- L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),
- L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0')
-};
-
-# define memset_space(P, Len) \
- do { \
- int _len = (Len); \
- \
- do \
- { \
- int _this = _len > 16 ? 16 : _len; \
- (P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \
- _len -= _this; \
- } \
- while (_len > 0); \
- } while (0)
-
-# define memset_zero(P, Len) \
- do { \
- int _len = (Len); \
- \
- do \
- { \
- int _this = _len > 16 ? 16 : _len; \
- (P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \
- _len -= _this; \
- } \
- while (_len > 0); \
- } while (0)
+#ifdef COMPILE_WIDE
+# define memset_space(P, Len) (wmemset (P, L' ', Len), (P) += (Len))
+# define memset_zero(P, Len) (wmemset (P, L'0', Len), (P) += (Len))
#else
-# ifdef COMPILE_WIDE
-# define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len))
-# define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len))
-# else
-# define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len))
-# define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len))
-# endif
+# define memset_space(P, Len) (memset (P, ' ', Len), (P) += (Len))
+# define memset_zero(P, Len) (memset (P, '0', Len), (P) += (Len))
#endif
#define add(n, f) \
int _n = (n); \
int _delta = width - _n; \
int _incr = _n + (_delta > 0 ? _delta : 0); \
- if (i + _incr >= maxsize) \
+ if ((size_t) _incr >= maxsize - i) \
return 0; \
if (p) \
{ \
else if (to_uppcase) \
memcpy_uppcase (p, (s), _n LOCALE_ARG); \
else \
- MEMCPY ((PTR) p, (const PTR) (s), _n))
+ MEMCPY ((void *) p, (void const *) (s), _n))
#ifdef COMPILE_WIDE
-# ifdef USE_IN_EXTENDED_LOCALE_MODEL
-# define widen(os, ws, l) \
+# ifndef USE_IN_EXTENDED_LOCALE_MODEL
+# undef __mbsrtowcs_l
+# define __mbsrtowcs_l(d, s, l, st, loc) __mbsrtowcs (d, s, l, st)
+# endif
+# define widen(os, ws, l) \
{ \
mbstate_t __st; \
const char *__s = os; \
memset (&__st, '\0', sizeof (__st)); \
l = __mbsrtowcs_l (NULL, &__s, 0, &__st, loc); \
- ws = alloca ((l + 1) * sizeof (wchar_t)); \
+ ws = (wchar_t *) alloca ((l + 1) * sizeof (wchar_t)); \
(void) __mbsrtowcs_l (ws, &__s, l, &__st, loc); \
}
-# else
-# define widen(os, ws, l) \
- { \
- mbstate_t __st; \
- const char *__s = os; \
- memset (&__st, '\0', sizeof (__st)); \
- l = __mbsrtowcs (NULL, &__s, 0, &__st); \
- ws = alloca ((l + 1) * sizeof (wchar_t)); \
- (void) __mbsrtowcs (ws, &__s, l, &__st); \
- }
-# endif
#endif
# undef _NL_CURRENT
# define _NL_CURRENT(category, item) \
(current->values[_NL_ITEM_INDEX (item)].string)
-# define LOCALE_PARAM , loc
# define LOCALE_ARG , loc
-# define LOCALE_PARAM_DECL __locale_t loc;
# define LOCALE_PARAM_PROTO , __locale_t loc
# define HELPER_LOCALE_ARG , current
#else
-# define LOCALE_PARAM
# define LOCALE_PARAM_PROTO
# define LOCALE_ARG
-# define LOCALE_PARAM_DECL
# ifdef _LIBC
# define HELPER_LOCALE_ARG , _NL_CURRENT_DATA (LC_TIME)
# else
more reliable way to accept other sets of digits. */
#define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9)
-static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src,
- size_t len LOCALE_PARAM_PROTO));
-
static CHAR_T *
-memcpy_lowcase (dest, src, len LOCALE_PARAM)
- CHAR_T *dest;
- const CHAR_T *src;
- size_t len;
- LOCALE_PARAM_DECL
+memcpy_lowcase (CHAR_T *dest, const CHAR_T *src,
+ size_t len LOCALE_PARAM_PROTO)
{
while (len-- > 0)
dest[len] = TOLOWER ((UCHAR_T) src[len], loc);
return dest;
}
-static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src,
- size_t len LOCALE_PARAM_PROTO));
-
static CHAR_T *
-memcpy_uppcase (dest, src, len LOCALE_PARAM)
- CHAR_T *dest;
- const CHAR_T *src;
- size_t len;
- LOCALE_PARAM_DECL
+memcpy_uppcase (CHAR_T *dest, const CHAR_T *src,
+ size_t len LOCALE_PARAM_PROTO)
{
while (len-- > 0)
dest[len] = TOUPPER ((UCHAR_T) src[len], loc);
/* Yield the difference between *A and *B,
measured in seconds, ignoring leap seconds. */
# define tm_diff ftime_tm_diff
-static int tm_diff __P ((const struct tm *, const struct tm *));
static int
-tm_diff (a, b)
- const struct tm *a;
- const struct tm *b;
+tm_diff (const struct tm *a, const struct tm *b)
{
/* Compute intervening leap days correctly even if year is negative.
Take care to avoid int overflow in leap day calculations,
#define ISO_WEEK_START_WDAY 1 /* Monday */
#define ISO_WEEK1_WDAY 4 /* Thursday */
#define YDAY_MINIMUM (-366)
-static int iso_week_days __P ((int, int));
#ifdef __GNUC__
__inline__
#endif
static int
-iso_week_days (yday, wday)
- int yday;
- int wday;
+iso_week_days (int yday, int wday)
{
/* Add enough to the first operand of % to make it nonnegative. */
int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7;
#ifdef my_strftime
# define extra_args , ut, ns
-# define extra_args_spec int ut; int ns;
-# define extra_args_spec_iso , int ut, int ns
+# define extra_args_spec , int ut, int ns
#else
# ifdef COMPILE_WIDE
# define my_strftime wcsftime
+# define nl_get_alt_digit _nl_get_walt_digit
# else
# define my_strftime strftime
+# define nl_get_alt_digit _nl_get_alt_digit
# endif
# define extra_args
# define extra_args_spec
-# define extra_args_spec_iso
/* We don't have this information in general. */
# define ut 0
# define ns 0
#endif
-#if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET
- /* Solaris 2.5 tzset sometimes modifies the storage returned by localtime.
- Work around this bug by copying *tp before it might be munged. */
- size_t _strftime_copytm __P ((char *, size_t, const char *,
- const struct tm * extra_args_spec_iso));
- size_t
- my_strftime (s, maxsize, format, tp extra_args)
- CHAR_T *s;
- size_t maxsize;
- const CHAR_T *format;
- const struct tm *tp;
- extra_args_spec
- {
- struct tm tmcopy;
- tmcopy = *tp;
- return _strftime_copytm (s, maxsize, format, &tmcopy extra_args);
- }
-# undef my_strftime
-# define my_strftime _strftime_copytm
+#if ! defined _LIBC && ! HAVE_RUN_TZSET_TEST
+/* Solaris 2.5.x and 2.6 tzset sometimes modify the storage returned
+ by localtime. On such systems, we must use the tzset and localtime
+ wrappers to work around the bug. */
+"you must run the autoconf test for a working tzset function"
#endif
anywhere, so to determine how many characters would be
written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */
size_t
-my_strftime (s, maxsize, format, tp extra_args LOCALE_PARAM)
- CHAR_T *s;
- size_t maxsize;
- const CHAR_T *format;
- const struct tm *tp;
- extra_args_spec
- LOCALE_PARAM_DECL
+my_strftime (CHAR_T *s, size_t maxsize, const CHAR_T *format,
+ const struct tm *tp extra_args_spec LOCALE_PARAM_PROTO)
{
#if defined _LIBC && defined USE_IN_EXTENDED_LOCALE_MODEL
struct locale_data *const current = loc->__locales[LC_TIME];
int pad = 0; /* Padding for number ('-', '_', or 0). */
int modifier; /* Field modifier ('E', 'O', or 0). */
int digits; /* Max digits for numeric format. */
- int number_value; /* Numeric value to be printed. */
+ int number_value; /* Numeric value to be printed. */
int negative_number; /* 1 if the number is negative. */
const CHAR_T *subfmt;
CHAR_T *bufp;
width = 0;
do
{
- width *= 10;
- width += *f - L_('0');
+ if (width > INT_MAX / 10
+ || (width == INT_MAX / 10 && *f - L_('0') > INT_MAX % 10))
+ /* Avoid overflow. */
+ width = INT_MAX;
+ else
+ {
+ width *= 10;
+ width += *f - L_('0');
+ }
++f;
}
while (ISDIGIT (*f));
switch (format_char)
{
#define DO_NUMBER(d, v) \
- digits = width == -1 ? d : width; \
+ digits = d > width ? d : width; \
number_value = v; goto do_number
#define DO_NUMBER_SPACEPAD(d, v) \
- digits = width == -1 ? d : width; \
+ digits = d > width ? d : width; \
number_value = v; goto do_number_spacepad
case L_('%'):
jump to one of these two labels. */
do_number_spacepad:
- /* Force `_' flag unless overwritten by `0' flag. */
- if (pad != L_('0'))
+ /* Force `_' flag unless overridden by `0' or `-' flag. */
+ if (pad != L_('0') && pad != L_('-'))
pad = L_('_');
do_number:
#ifdef _NL_CURRENT
/* Get the locale specific alternate representation of
the number NUMBER_VALUE. If none exist NULL is returned. */
-# ifdef COMPILE_WIDE
- const wchar_t *cp = _nl_get_walt_digit (number_value
- HELPER_LOCALE_ARG);
-# else
- const char *cp = _nl_get_alt_digit (number_value
- HELPER_LOCALE_ARG);
-# endif
+ const CHAR_T *cp = nl_get_alt_digit (number_value
+ HELPER_LOCALE_ARG);
if (cp != NULL)
{
do
*--bufp = u % 10 + L_('0');
while ((u /= 10) != 0);
- }
+ }
do_number_sign_and_padding:
if (negative_number)
int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
- bufp);
- if (pad == L_('_'))
+ if (padding > 0)
{
- while (0 < padding--)
- *--bufp = L_(' ');
- }
- else
- {
- bufp += negative_number;
- while (0 < padding--)
- *--bufp = L_('0');
- if (negative_number)
- *--bufp = L_('-');
+ if (pad == L_('_'))
+ {
+ if ((size_t) padding >= maxsize - i)
+ return 0;
+
+ if (p)
+ memset_space (p, padding);
+ i += padding;
+ width = width > padding ? width - padding : 0;
+ }
+ else
+ {
+ if ((size_t) digits >= maxsize - i)
+ return 0;
+
+ if (negative_number)
+ {
+ ++bufp;
+
+ if (p)
+ *p++ = L_('-');
+ ++i;
+ }
+
+ if (p)
+ memset_zero (p, padding);
+ i += padding;
+ width = 0;
+ }
}
}
goto subformat;
case L_('r'):
-#ifdef _NL_CURRENT
+#if !defined _NL_CURRENT && HAVE_STRFTIME
+ goto underlying_strftime;
+#else
+# ifdef _NL_CURRENT
if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME,
NLW(T_FMT_AMPM)))
== L_('\0'))
-#endif
+# endif
subfmt = L_("%I:%M:%S %p");
goto subformat;
+#endif
case L_('S'):
if (modifier == L_('E'))
DO_NUMBER (2, tp->tm_sec);
case L_('s'): /* GNU extension. */
- {
+ {
struct tm ltm;
time_t t;
occurred. */
struct tm tm;
- if (! my_strftime_localtime_r (<, &tm)
+ if (! __localtime_r (<, &tm)
|| ((ltm.tm_sec ^ tm.tm_sec)
| (ltm.tm_min ^ tm.tm_min)
| (ltm.tm_hour ^ tm.tm_hour)
break;
}
- if (! my_strftime_gmtime_r (<, >m))
+ if (! __gmtime_r (<, >m))
break;
diff = tm_diff (<m, >m);
/* For Emacs we have a separate interface which corresponds to the normal
strftime function plus the ut argument, but without the ns argument. */
size_t
-emacs_strftimeu (s, maxsize, format, tp, ut)
- char *s;
- size_t maxsize;
- const char *format;
- const struct tm *tp;
- int ut;
+emacs_strftimeu (char *s, size_t maxsize, const char *format,
+ const struct tm *tp, int ut)
{
return my_strftime (s, maxsize, format, tp, ut, 0);
}
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