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authorManuel Novoa III <mjn3@codepoet.org>2002-06-17 09:45:15 +0000
committerManuel Novoa III <mjn3@codepoet.org>2002-06-17 09:45:15 +0000
commitd6b2a407783dbbd6c9680601da005de0bb0ff37d (patch)
treed72244507fab5c5c59d12aa10fa411943631c56c /libc
parenta7ce5bbdcd1217af1aab4c15e4ce337c8ef33973 (diff)
Commit the new time stuff, even though I haven't made it threadsafe yet.
At least people can play with it. Also, fix a buglet in setenv.c.
Diffstat (limited to 'libc')
-rw-r--r--libc/misc/time/Makefile20
-rw-r--r--libc/misc/time/README8
-rw-r--r--libc/misc/time/__time_locale.c30
-rw-r--r--libc/misc/time/__time_static.c17
-rw-r--r--libc/misc/time/asc_conv.c80
-rw-r--r--libc/misc/time/asctime.c18
-rw-r--r--libc/misc/time/asctime_r.c16
-rw-r--r--libc/misc/time/clock.c43
-rw-r--r--libc/misc/time/ctime.c14
-rw-r--r--libc/misc/time/ctime_r.c10
-rw-r--r--libc/misc/time/difftime.c64
-rw-r--r--libc/misc/time/gmtime.c13
-rw-r--r--libc/misc/time/gmtime_r.c12
-rw-r--r--libc/misc/time/localtime.c24
-rw-r--r--libc/misc/time/localtime_r.c22
-rw-r--r--libc/misc/time/mktime.c327
-rw-r--r--libc/misc/time/strftime.c395
-rw-r--r--libc/misc/time/strptime.c983
-rw-r--r--libc/misc/time/time.c1864
-rw-r--r--libc/misc/time/tm_conv.c105
-rw-r--r--libc/misc/time/utimes.c17
-rw-r--r--libc/stdlib/setenv.c3
22 files changed, 1881 insertions, 2204 deletions
diff --git a/libc/misc/time/Makefile b/libc/misc/time/Makefile
index 3e0845799..425e2713d 100644
--- a/libc/misc/time/Makefile
+++ b/libc/misc/time/Makefile
@@ -24,13 +24,19 @@
TOPDIR=../../../
include $(TOPDIR)Rules.mak
-CSRC=localtime.c gmtime.c asctime.c ctime.c asc_conv.c tm_conv.c mktime.c \
- localtime_r.c gmtime_r.c asctime_r.c ctime_r.c utimes.c adjtime.c \
- clock.c difftime.c ftime.c strftime.c strptime.c __time_locale.c \
- __time_static.c
+MSRC= time.c
+MOBJ= asctime.o asctime_r.o clock.o ctime.o ctime_r.o gmtime.o gmtime_r.o \
+ localtime.o localtime_r.o mktime.o strftime.o strptime.o tzset.o \
+ _time_t2tm.o __time_tm.o _time_mktime.o
+ifeq ($(HAS_FLOATING_POINT),true)
+ MOBJ += difftime.o
+endif
+
+CSRC= adjtime.c ftime.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
-OBJS=$(COBJS)
+
+OBJS=$(COBJS) $(MOBJ)
all: $(OBJS) $(LIBC)
@@ -39,6 +45,10 @@ $(LIBC): ar-target
ar-target: $(OBJS)
$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
+$(MOBJ): $(MSRC)
+ $(CC) $(CFLAGS) -DTARGET_ARCH=$(TARGET_ARCH) -DL_$* $< -c -o $*.o
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
$(COBJS): %.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
diff --git a/libc/misc/time/README b/libc/misc/time/README
deleted file mode 100644
index da4f4e67f..000000000
--- a/libc/misc/time/README
+++ /dev/null
@@ -1,8 +0,0 @@
-Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk>
-This file is part of the Linux-8086 C library and is distributed
-under the GNU Library General Public License.
-
-There are two ways of converting the time_t to a struct tm, I'm not
-quite sure which is better.
-
--Robert
diff --git a/libc/misc/time/__time_locale.c b/libc/misc/time/__time_locale.c
deleted file mode 100644
index 0d78a0a67..000000000
--- a/libc/misc/time/__time_locale.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#ifndef __UCLIBC_HAS_LOCALE__
-char const __weekday_name[][10] =
- {
- "Sunday", "Monday", "Tuesday", "Wednesday",
- "Thursday", "Friday", "Saturday"
- };
-char const __ab_weekday_name[][4] =
- {
- "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
- };
-char const __month_name[][10] =
- {
- "January", "February", "March", "April", "May", "June",
- "July", "August", "September", "October", "November", "December"
- };
-char const __ab_month_name[][4] =
- {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
- };
-
-const unsigned short int __mon_yday[2][13] =
- {
- /* Normal years. */
- { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
- /* Leap years. */
- { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
- };
-#endif
-
diff --git a/libc/misc/time/__time_static.c b/libc/misc/time/__time_static.c
deleted file mode 100644
index d921ced90..000000000
--- a/libc/misc/time/__time_static.c
+++ /dev/null
@@ -1,17 +0,0 @@
-
-#include <time.h>
-
-/* These globals are exported by the C library */
-char *__tzname[2] = { (char *) "GMT", (char *) "GMT" };
-int __daylight = 0;
-long int __timezone = 0L;
-/* Grumble */
-weak_alias (__tzname, tzname);
-weak_alias (__daylight, daylight);
-weak_alias (__timezone, timezone);
-
-
-/* static data for gmtime() and localtime() */
-struct tm __tmb;
-
-
diff --git a/libc/misc/time/asc_conv.c b/libc/misc/time/asc_conv.c
deleted file mode 100644
index 50c7e0834..000000000
--- a/libc/misc/time/asc_conv.c
+++ /dev/null
@@ -1,80 +0,0 @@
-#include <features.h>
-#include <ctype.h>
-#include <langinfo.h>
-#include <string.h>
-#include <time.h>
-
-/*
- * Internal ascii conversion routine, avoid use of printf, it's a bit big!
- */
-
-/*
- * Modified Manuel Novoa III Jan 2001
- *
- * Removed static function "hit" and did time-field fills inline and
- * put day, hour, min, and sec conversions in a loop using a small
- * table to reduce code size.
- *
- * Made daysp[] and mons[] const to move them from bss to text.
- *
- * Also fixed day conversion ... ANSI says no leading 0.
- *
- * Modified Erik Andersen May 2002
- * Changed to optionally support real locales.
- *
- */
-
-#ifdef __UCLIBC_HAS_LOCALE__
-/* This is defined in locale/C-time.c in the GNU libc. */
-extern const struct locale_data _nl_C_LC_TIME;
-#define __ab_weekday_name(DAY) (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)+(DAY)].string)
-#define __ab_month_name(MON) (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)+(MON)].string)
-#else
-extern char const __ab_weekday_name[][4];
-extern char const __ab_month_name[][4];
-#define __ab_weekday_name(DAY) (__ab_weekday_name[DAY])
-#define __ab_month_name(MON) (__ab_month_name[MON])
-#endif
-
-void __asctime(register char *buffer, struct tm *ptm)
-{
- char *p;
- int tmp, i, tm_field[4];
- /* 012345678901234567890123456 */
- static const char template[] = "??? ??? 00 00:00:00 0000\n";
-
- /* Since we need memcpy below, use it here instead of strcpy. */
- memcpy(buffer, template, sizeof(template));
-
- if ((ptm->tm_wday >= 0) && (ptm->tm_wday <= 6)) {
- memcpy(buffer, __ab_weekday_name(ptm->tm_wday), 3);
- }
-
- if ((ptm->tm_mon >= 0) && (ptm->tm_mon <= 11)) {
- memcpy(buffer + 4, __ab_month_name(ptm->tm_mon), 3);
- }
-
- tm_field[0] = ptm->tm_mday;
- tm_field[1] = ptm->tm_hour;
- tm_field[2] = ptm->tm_min;
- tm_field[3] = ptm->tm_sec;
-
- p = buffer + 9;
- for (i=0 ; i<4 ; i++) {
- tmp = tm_field[i];
- *p-- += tmp % 10;
- *p += (tmp/10) % 10;
- p += 4 ; /* skip to end of next field */
- }
-
- tmp = ptm->tm_year + 1900;
- p = buffer + 23;
- for (i=0 ; i<4 ; i++) {
- *p-- += tmp % 10;
- tmp /= 10;
- }
-
- if (buffer[8] == '0') {
- buffer[8] = ' ';
- }
-}
diff --git a/libc/misc/time/asctime.c b/libc/misc/time/asctime.c
deleted file mode 100644
index 9d5772335..000000000
--- a/libc/misc/time/asctime.c
+++ /dev/null
@@ -1,18 +0,0 @@
-
-#include <time.h>
-#include <errno.h>
-
-extern void __asctime();
-
-
-char * asctime (__const struct tm *timeptr)
-{
- static char __time_buf[26];
- if (timeptr == NULL) {
- __set_errno (EINVAL);
- return NULL;
- }
- __asctime(__time_buf, timeptr);
- return __time_buf;
-}
-
diff --git a/libc/misc/time/asctime_r.c b/libc/misc/time/asctime_r.c
deleted file mode 100644
index 215031949..000000000
--- a/libc/misc/time/asctime_r.c
+++ /dev/null
@@ -1,16 +0,0 @@
-
-#include <time.h>
-#include <errno.h>
-
-extern void __asctime();
-
-char *asctime_r(__const struct tm *timeptr, char *buf)
-{
- if (timeptr == NULL || buf == NULL) {
- __set_errno (EINVAL);
- return NULL;
- }
- __asctime(buf, timeptr);
- return buf;
-}
-
diff --git a/libc/misc/time/clock.c b/libc/misc/time/clock.c
deleted file mode 100644
index 139d35868..000000000
--- a/libc/misc/time/clock.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Copyright (C) 1991, 1992, 1996, 1999 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library 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.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <time.h>
-#include <unistd.h>
-#include <sys/times.h>
-
-/* Return the time used by the program so far (user time + system time). */
-clock_t
-clock (void)
-{
- struct tms buf;
- long clk_tck = CLK_TCK;
-
- /* We don't check for errors here. The only error the kernel
- returns is EFAULT if the value cannot be written to the struct we
- pass a pointer to. Otherwise the kernel returns an `unsigned
- long' value which is the number of jiffies since system start.
- But this number can be negative (when read as `long') when the
- system is up for some time. Ignoring errors should therefore
- have no negative impacts but solve the problem. */
- times (&buf);
-
- return
- (clk_tck <= CLOCKS_PER_SEC) ?
- ((unsigned long) buf.tms_utime + buf.tms_stime) * (CLOCKS_PER_SEC / clk_tck) :
- ((unsigned long) buf.tms_utime + buf.tms_stime) / (clk_tck / CLOCKS_PER_SEC);
-}
diff --git a/libc/misc/time/ctime.c b/libc/misc/time/ctime.c
deleted file mode 100644
index 027f5d5a7..000000000
--- a/libc/misc/time/ctime.c
+++ /dev/null
@@ -1,14 +0,0 @@
-
-#include <time.h>
-#include <sys/time.h>
-
-char * ctime (const time_t *t)
-{
-
- /* According to IEEE Std 1003.1-2001: The ctime() function shall
- * convert the time pointed to by clock, representing time in
- * seconds since the Epoch, to local time in the form of a string.
- * It shall be equivalent to: asctime(localtime(clock)) */
- return asctime (localtime (t));
-}
-
diff --git a/libc/misc/time/ctime_r.c b/libc/misc/time/ctime_r.c
deleted file mode 100644
index 1b323a258..000000000
--- a/libc/misc/time/ctime_r.c
+++ /dev/null
@@ -1,10 +0,0 @@
-
-#include <time.h>
-#include <sys/time.h>
-
-char * ctime_r(const time_t *t, char *buf)
-{
- struct tm tm;
- return asctime_r(localtime_r(t, &tm), buf);
-}
-
diff --git a/libc/misc/time/difftime.c b/libc/misc/time/difftime.c
deleted file mode 100644
index 88a9244ba..000000000
--- a/libc/misc/time/difftime.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/* Copyright (C) 1991, 1994, 1996 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library 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.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <time.h>
-#include <limits.h>
-#include <sys/types.h>
-
-
-/* Return the difference between TIME1 and TIME0. */
-double difftime (time_t time1, time_t time0)
-{
- /* Algorithm courtesy Paul Eggert (eggert@twinsun.com). */
-
- time_t delta, hibit;
-
- if (sizeof (time_t) < sizeof (double))
- return (double) time1 - (double) time0;
- if (sizeof (time_t) < sizeof (long double))
- return (long double) time1 - (long double) time0;
-
- if (time1 < time0)
- return - difftime (time0, time1);
-
- /* As much as possible, avoid loss of precision by computing the
- difference before converting to double. */
- delta = time1 - time0;
- if (delta >= 0)
- return delta;
-
- /* Repair delta overflow. */
- hibit = (~ (time_t) 0) << ((sizeof (time_t) * CHAR_BIT) - 1);
-
- /* The following expression rounds twice, which means the result may not
- be the closest to the true answer. For example, suppose time_t is
- 64-bit signed int, long_double is IEEE 754 double with default
- rounding, time1 = 9223372036854775807 and time0 = -1536. Then the
- true difference is 9223372036854777343, which rounds to
- 9223372036854777856 with a total error of 513. But delta overflows to
- -9223372036854774273, which rounds to -9223372036854774784, and
- correcting this by subtracting 2 * (long_double) hibit (i.e. by adding
- 2**64 = 18446744073709551616) yields 9223372036854776832, which rounds
- to 9223372036854775808 with a total error of 1535 instead. This
- problem occurs only with very large differences. It's too painful to
- fix this portably. We are not alone in this problem; many C compilers
- round twice when converting large unsigned types to small floating
- types, so if time_t is unsigned the "return delta" above has the same
- double-rounding problem. */
- return delta - 2 * (long double) hibit;
-}
diff --git a/libc/misc/time/gmtime.c b/libc/misc/time/gmtime.c
deleted file mode 100644
index e9d648037..000000000
--- a/libc/misc/time/gmtime.c
+++ /dev/null
@@ -1,13 +0,0 @@
-
-#include <time.h>
-
-extern void __tm_conv();
-
-/* Our static data lives in __time_static.c */
-extern struct tm __tmb;
-
-struct tm *gmtime(__const time_t *timep)
-{
- __tm_conv(&__tmb, timep, 0L);
- return &__tmb;
-}
diff --git a/libc/misc/time/gmtime_r.c b/libc/misc/time/gmtime_r.c
deleted file mode 100644
index a1502e275..000000000
--- a/libc/misc/time/gmtime_r.c
+++ /dev/null
@@ -1,12 +0,0 @@
-
-#include <time.h>
-
-extern void __tm_conv();
-
-struct tm *gmtime_r(timep, tp)
-__const time_t *timep;
-struct tm *tp;
-{
- __tm_conv(tp, timep, 0L);
- return tp;
-}
diff --git a/libc/misc/time/localtime.c b/libc/misc/time/localtime.c
deleted file mode 100644
index 22f5035e9..000000000
--- a/libc/misc/time/localtime.c
+++ /dev/null
@@ -1,24 +0,0 @@
-
-#include <time.h>
-#include <sys/time.h>
-
-/* Our static data lives in __time_static.c */
-extern struct tm __tmb;
-
-
-extern void __tm_conv();
-
-struct tm *localtime(__const time_t *timep)
-{
- struct timezone tz;
- time_t offt;
-
- gettimeofday((void *) 0, &tz);
-
- offt = -tz.tz_minuteswest * 60L;
-
- /* tmb.tm_isdst = ? */
- __tm_conv(&__tmb, timep, offt);
-
- return &__tmb;
-}
diff --git a/libc/misc/time/localtime_r.c b/libc/misc/time/localtime_r.c
deleted file mode 100644
index 139864506..000000000
--- a/libc/misc/time/localtime_r.c
+++ /dev/null
@@ -1,22 +0,0 @@
-
-#include <time.h>
-#include <sys/time.h>
-
-extern void __tm_conv();
-
-struct tm *localtime_r(timep, tp)
-__const time_t *timep;
-struct tm *tp;
-{
- struct timezone tz;
- time_t offt;
-
- gettimeofday((void *) 0, &tz);
-
- offt = -tz.tz_minuteswest * 60L;
-
- /* tmb.tm_isdst = ? */
- __tm_conv(tp, timep, offt);
-
- return tp;
-}
diff --git a/libc/misc/time/mktime.c b/libc/misc/time/mktime.c
deleted file mode 100644
index 065126e0e..000000000
--- a/libc/misc/time/mktime.c
+++ /dev/null
@@ -1,327 +0,0 @@
-/* Convert a `struct tm' to a time_t value.
- Copyright (C) 1993, 94, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Paul Eggert (eggert@twinsun.com).
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* Define this to have a standalone program to test this implementation of
- mktime. */
-
-#include <features.h>
-/* Assume that leap seconds are not possible */
-#undef LEAP_SECONDS_POSSIBLE
-#include <sys/types.h> /* Some systems define `time_t' here. */
-#include <time.h>
-#include <limits.h>
-
-#if 0
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-
-/* The extra casts work around common compiler bugs. */
-#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
-/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
- It is necessary at least when t == time_t. */
-#define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
- ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
-#define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
-
-#ifndef INT_MIN
-# define INT_MIN TYPE_MINIMUM (int)
-#endif
-#ifndef INT_MAX
-# define INT_MAX TYPE_MAXIMUM (int)
-#endif
-
-#ifndef TIME_T_MIN
-# define TIME_T_MIN TYPE_MINIMUM (time_t)
-#endif
-#ifndef TIME_T_MAX
-# define TIME_T_MAX TYPE_MAXIMUM (time_t)
-#endif
-
-#define TM_YEAR_BASE 1900
-#define EPOCH_YEAR 1970
-
-
-/* How many days come before each month (0-12). */
-extern const unsigned short int __mon_yday[2][13];
-
-
-
-/* Yield the difference between (YEAR-YDAY HOUR:MIN:SEC) and (*TP),
- measured in seconds, ignoring leap seconds.
- YEAR uses the same numbering as TM->tm_year.
- All values are in range, except possibly YEAR.
- If TP is null, return a nonzero value.
- If overflow occurs, yield the low order bits of the correct answer. */
-static time_t
-__ydhms_tm_diff (int year, int yday, int hour, int min, int sec,
- const struct tm *tp)
-{
- if (!tp)
- return 1;
- else
- {
- /* Compute intervening leap days correctly even if year is negative.
- Take care to avoid int overflow. time_t overflow is OK, since
- only the low order bits of the correct time_t answer are needed.
- Don't convert to time_t until after all divisions are done, since
- time_t might be unsigned. */
- int a4 = (year >> 2) + (TM_YEAR_BASE >> 2) - ! (year & 3);
- int b4 = (tp->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (tp->tm_year & 3);
- int a100 = a4 / 25 - (a4 % 25 < 0);
- int b100 = b4 / 25 - (b4 % 25 < 0);
- int a400 = a100 >> 2;
- int b400 = b100 >> 2;
- int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
- time_t years = year - (time_t) tp->tm_year;
- time_t days = (365 * years + intervening_leap_days
- + (yday - tp->tm_yday));
- return (60 * (60 * (24 * days + (hour - tp->tm_hour))
- + (min - tp->tm_min))
- + (sec - tp->tm_sec));
- }
-}
-
-/* Use CONVERT to convert *T to a broken down time in *TP.
- If *T is out of range for conversion, adjust it so that
- it is the nearest in-range value and then convert that. */
-static struct tm *
-__ranged_convert (struct tm *(*convert) (const time_t *, struct tm *),
- time_t *t, struct tm *tp)
-{
- struct tm *r;
-
- if (! (r = (*convert) (t, tp)) && *t)
- {
- time_t bad = *t;
- time_t ok = 0;
- struct tm tm;
-
- /* BAD is a known unconvertible time_t, and OK is a known good one.
- Use binary search to narrow the range between BAD and OK until
- they differ by 1. */
- while (bad != ok + (bad < 0 ? -1 : 1))
- {
- time_t mid = *t = (bad < 0
- ? bad + ((ok - bad) >> 1)
- : ok + ((bad - ok) >> 1));
- if ((r = (*convert) (t, tp)))
- {
- tm = *r;
- ok = mid;
- }
- else
- bad = mid;
- }
-
- if (!r && ok)
- {
- /* The last conversion attempt failed;
- revert to the most recent successful attempt. */
- *t = ok;
- *tp = tm;
- r = tp;
- }
- }
-
- return r;
-}
-
-
-/* Convert *TP to a time_t value, inverting
- the monotonic and mostly-unit-linear conversion function CONVERT.
- Use *OFFSET to keep track of a guess at the offset of the result,
- compared to what the result would be for UTC without leap seconds.
- If *OFFSET's guess is correct, only one CONVERT call is needed. */
-time_t __mktime_internal (struct tm *tp,
- struct tm *(*convert) (const time_t *, struct tm *), time_t *offset)
-{
- time_t t, dt, t0, t1, t2;
- struct tm tm;
-
- /* The maximum number of probes (calls to CONVERT) should be enough
- to handle any combinations of time zone rule changes, solar time,
- leap seconds, and oscillations around a spring-forward gap.
- POSIX.1 prohibits leap seconds, but some hosts have them anyway. */
- int remaining_probes = 6;
-
- /* Time requested. Copy it in case CONVERT modifies *TP; this can
- occur if TP is localtime's returned value and CONVERT is localtime. */
- int sec = tp->tm_sec;
- int min = tp->tm_min;
- int hour = tp->tm_hour;
- int mday = tp->tm_mday;
- int mon = tp->tm_mon;
- int year_requested = tp->tm_year;
- int isdst = tp->tm_isdst;
-
- /* Ensure that mon is in range, and set year accordingly. */
- int mon_remainder = mon % 12;
- int negative_mon_remainder = mon_remainder < 0;
- int mon_years = mon / 12 - negative_mon_remainder;
- int year = year_requested + mon_years;
-
- /* The other values need not be in range:
- the remaining code handles minor overflows correctly,
- assuming int and time_t arithmetic wraps around.
- Major overflows are caught at the end. */
-
- /* Calculate day of year from year, month, and day of month.
- The result need not be in range. */
- int yday = ((__mon_yday[__isleap (year + TM_YEAR_BASE)]
- [mon_remainder + 12 * negative_mon_remainder])
- + mday - 1);
-
- int sec_requested = sec;
-#if LEAP_SECONDS_POSSIBLE
- /* Handle out-of-range seconds specially,
- since __ydhms_tm_diff assumes every minute has 60 seconds. */
- if (sec < 0)
- sec = 0;
- if (59 < sec)
- sec = 59;
-#endif
-
- /* Invert CONVERT by probing. First assume the same offset as last time.
- Then repeatedly use the error to improve the guess. */
-
- tm.tm_year = EPOCH_YEAR - TM_YEAR_BASE;
- tm.tm_yday = tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
- t0 = __ydhms_tm_diff (year, yday, hour, min, sec, &tm);
-
- for (t = t1 = t2 = t0 + *offset;
- (dt = __ydhms_tm_diff (year, yday, hour, min, sec,
- __ranged_convert (convert, &t, &tm)));
- t1 = t2, t2 = t, t += dt)
- if (t == t1 && t != t2
- && (isdst < 0 || tm.tm_isdst < 0
- || (isdst != 0) != (tm.tm_isdst != 0)))
- /* We can't possibly find a match, as we are oscillating
- between two values. The requested time probably falls
- within a spring-forward gap of size DT. Follow the common
- practice in this case, which is to return a time that is DT
- away from the requested time, preferring a time whose
- tm_isdst differs from the requested value. In practice,
- this is more useful than returning -1. */
- break;
- else if (--remaining_probes == 0)
- return -1;
-
- /* If we have a match, check whether tm.tm_isdst has the requested
- value, if any. */
- if (dt == 0 && isdst != tm.tm_isdst && 0 <= isdst && 0 <= tm.tm_isdst)
- {
- /* tm.tm_isdst has the wrong value. Look for a neighboring
- time with the right value, and use its UTC offset.
-Heuristic: probe the previous three calendar quarters (approximately),
-looking for the desired isdst. This isn't perfect,
-but it's good enough in practice. */
- int quarter = 7889238; /* seconds per average 1/4 Gregorian year */
- int i;
-
- /* If we're too close to the time_t limit, look in future quarters. */
- if (t < TIME_T_MIN + 3 * quarter)
- quarter = -quarter;
-
- for (i = 1; i <= 3; i++)
- {
- time_t ot = t - i * quarter;
- struct tm otm;
- __ranged_convert (convert, &ot, &otm);
- if (otm.tm_isdst == isdst)
- {
- /* We found the desired tm_isdst.
- Extrapolate back to the desired time. */
- t = ot + __ydhms_tm_diff (year, yday, hour, min, sec, &otm);
- __ranged_convert (convert, &t, &tm);
- break;
- }
- }
- }
-
- *offset = t - t0;
-
-#if LEAP_SECONDS_POSSIBLE
- if (sec_requested != tm.tm_sec)
- {
- /* Adjust time to reflect the tm_sec requested, not the normalized value.
- Also, repair any damage from a false match due to a leap second. */
- t += sec_requested - sec + (sec == 0 && tm.tm_sec == 60);
- if (! (*convert) (&t, &tm))
- return -1;
- }
-#endif
-
- if (TIME_T_MAX / INT_MAX / 366 / 24 / 60 / 60 < 3)
- {
- /* time_t isn't large enough to rule out overflows in __ydhms_tm_diff,
- so check for major overflows. A gross check suffices,
- since if t has overflowed, it is off by a multiple of
- TIME_T_MAX - TIME_T_MIN + 1. So ignore any component of
- the difference that is bounded by a small value. */
-
- double dyear = (double) year_requested + mon_years - tm.tm_year;
- double dday = 366 * dyear + mday;
- double dsec = 60 * (60 * (24 * dday + hour) + min) + sec_requested;
-
- /* On Irix4.0.5 cc, dividing TIME_T_MIN by 3 does not produce
- correct results, ie., it erroneously gives a positive value
- of 715827882. Setting a variable first then doing math on it
- seems to work. (ghazi@caip.rutgers.edu) */
-
- const time_t time_t_max = TIME_T_MAX;
- const time_t time_t_min = TIME_T_MIN;
-
- if (time_t_max / 3 - time_t_min / 3 < (dsec < 0 ? - dsec : dsec))
- return -1;
- }
-
- *tp = tm;
- return t;
-}
-
-
-
-/* Convert *TP to a time_t value. */
-time_t mktime (struct tm *tp)
-{
- static time_t localtime_offset;
- /* POSIX.1 8.1.1 requires that whenever mktime() is called, the
- time zone names contained in the external variable `tzname' shall
- be set as if the tzset() function had been called. */
- tzset ();
-
- return __mktime_internal (tp, localtime_r, &localtime_offset);
-}
-#else
-
-/* Convert *TP to a time_t value. */
-time_t mktime (struct tm *tp)
-{
- time_t m_secs=tp->tm_min*60;
- time_t h_secs=tp->tm_hour*3600;
- time_t d_secs=tp->tm_yday*86400;
- time_t y_secs=(tp->tm_year-70)*31536000;
- time_t l_secs1=((tp->tm_year-69)/4)*86400;
- time_t l_secs2=((tp->tm_year-1)/100)*86400;
- time_t l_secs3=((tp->tm_year+299)/400)*86400;
- return m_secs+h_secs+d_secs+y_secs+l_secs1-l_secs2+l_secs3+tp->tm_gmtoff;
-}
-#endif
diff --git a/libc/misc/time/strftime.c b/libc/misc/time/strftime.c
deleted file mode 100644
index bde0d93d8..000000000
--- a/libc/misc/time/strftime.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library 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.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 675 Mass Ave,
-Cambridge, MA 02139, USA. */
-
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h> /* Some systems define `time_t' here. */
-#include <sys/time.h>
-#include <time.h>
-#include <ctype.h>
-#include <limits.h>
-
-static unsigned int week (const struct tm *const, int, int);
-
-#define add(n, f) \
- do \
- { \
- i += (n); \
- if (i >= maxsize) \
- return 0; \
- else \
- if (p) \
- { \
- f; \
- p += (n); \
- } \
- } while (0)
-#define cpy(n, s) add((n), memcpy((void *) p, (void *) (s), (n)))
-
-#ifdef _LIBC
-#define fmt(n, args) add((n), if (sprintf args != (n)) return 0)
-#else
-#define fmt(n, args) add((n), sprintf args; if (strlen (p) != (n)) return 0)
-#endif
-
-
-
-/* Return the week in the year specified by TP,
- with weeks starting on STARTING_DAY. */
-static unsigned int week(const struct tm *const tp , int starting_day , int max_preceding )
-{
- int wday, dl, base;
-
- wday = tp->tm_wday - starting_day;
- if (wday < 0)
- wday += 7;
-
- /* Set DL to the day in the year of the first day of the week
- containing the day specified in TP. */
- dl = tp->tm_yday - wday;
-
- /* For the computation following ISO 8601:1988 we set the number of
- the week containing January 1st to 1 if this week has more than
- MAX_PRECEDING days in the new year. For ISO 8601 this number is
- 3, for the other representation it is 7 (i.e., not to be
- fulfilled). */
- base = ((dl + 7) % 7) > max_preceding ? 1 : 0;
-
- /* If DL is negative we compute the result as 0 unless we have to
- compute it according ISO 8601. In this case we have to return 53
- or 1 if the week containing January 1st has less than 4 days in
- the new year or not. If DL is not negative we calculate the
- number of complete weeks for our week (DL / 7) plus 1 (because
- only for DL < 0 we are in week 0/53 and plus the number of the
- first week computed in the last step. */
- return dl < 0 ? (dl < -max_preceding ? 53 : base)
- : base + 1 + dl / 7;
-}
-
-#ifndef __UCLIBC_HAS_LOCALE__
-extern char const __weekday_name[][10];
-extern char const __month_name[][10];
-#endif
-
-/* Write information from TP into S according to the format
- string FORMAT, writing no more that MAXSIZE characters
- (including the terminating '\0') and returning number of
- characters written. If S is NULL, nothing will be written
- anywhere, so to determine how many characters would be
- written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */
-size_t strftime( char *s , size_t maxsize , const char *format , register const struct tm *tp)
-{
- int hour12 = tp->tm_hour;
-#ifdef __UCLIBC_HAS_LOCALE__
- const char *const a_wkday = _NL_CURRENT (LC_TIME, ABDAY_1 + tp->tm_wday);
- const char *const f_wkday = _NL_CURRENT (LC_TIME, DAY_1 + tp->tm_wday);
- const char *const a_month = _NL_CURRENT (LC_TIME, ABMON_1 + tp->tm_mon);
- const char *const f_month = _NL_CURRENT (LC_TIME, MON_1 + tp->tm_mon);
- const char *const ampm = _NL_CURRENT (LC_TIME,
- hour12 > 11 ? PM_STR : AM_STR);
- size_t aw_len = strlen(a_wkday);
- size_t am_len = strlen(a_month);
- size_t ap_len = strlen (ampm);
-#else
- const char *const f_wkday = __weekday_name[tp->tm_wday];
- const char *const f_month = __month_name[tp->tm_mon];
- const char *const a_wkday = f_wkday;
- const char *const a_month = f_month;
- const char *const ampm = "AMPM" + 2 * (hour12 > 11);
- size_t aw_len = 3;
- size_t am_len = 3;
- size_t ap_len = 2;
-#endif
- size_t wkday_len = strlen(f_wkday);
- size_t month_len = strlen(f_month);
- const unsigned int y_week0 = week (tp, 0, 7);
- const unsigned int y_week1 = week (tp, 1, 7);
- const unsigned int y_week2 = week (tp, 1, 3);
- const char *zone;
- size_t zonelen;
- register size_t i = 0;
- register char *p = s;
- register const char *f;
- char number_fmt[5];
-
- /* Initialize the buffer we will use for the sprintf format for numbers. */
- number_fmt[0] = '%';
-
- /* The POSIX test suite assumes that setting
- the environment variable TZ to a new value before calling strftime()
- will influence the result (the %Z format) even if the information in
- TP is computed with a totally different time zone.
- This is bogus: though POSIX allows bad behavior like this,
- POSIX does not require it. Do the right thing instead. */
- zone = (const char *) tp->tm_zone;
- /* POSIX.1 8.1.1 requires that whenever strftime() is called, the
- time zone names contained in the external variable `tzname' shall
- be set as if the tzset() function had been called. */
- tzset ();
- zonelen = strlen (zone);
-
- if (hour12 > 12)
- hour12 -= 12;
- else
- if (hour12 == 0) hour12 = 12;
-
- for (f = format; *f != '\0'; ++f)
- {
- enum { pad_zero, pad_space, pad_none } pad; /* Padding for number. */
- unsigned int maxdigits; /* Max digits for numeric format. */
- unsigned int number_value; /* Numeric value to be printed. */
- const char *subfmt;
-
-#if HAVE_MBLEN
- if (!isascii(*f))
- {
- /* Non-ASCII, may be a multibyte. */
- int len = mblen(f, strlen(f));
- if (len > 0)
- {
- cpy(len, f);
- continue;
- }
- }
-#endif
-
- if (*f != '%')
- {
- add(1, *p = *f);
- continue;
- }
-
- /* Check for flags that can modify a number format. */
- ++f;
- switch (*f)
- {
- case '_':
- pad = pad_space;
- ++f;
- break;
- case '-':
- pad = pad_none;
- ++f;
- break;
- default:
- pad = pad_zero;
- break;
- }
-
- /* Now do the specified format. */
- switch (*f)
- {
- case '\0':
- case '%':
- add(1, *p = *f);
- break;
-
- case 'a':
- cpy(aw_len, a_wkday);
- break;
-
- case 'A':
- cpy(wkday_len, f_wkday);
- break;
-
- case 'b':
- case 'h': /* GNU extension. */
- cpy(am_len, a_month);
- break;
-
- case 'B':
- cpy(month_len, f_month);
- break;
-
- case 'c':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-#else
- subfmt = "%a %b %d %H:%M:%S %Z %Y";
-#endif
- subformat:
- {
- size_t len = strftime (p, maxsize - i, subfmt, tp);
- if (len == 0 && *subfmt)
- return 0;
- add(len, );
- }
- break;
-
-#define DO_NUMBER(digits, value) \
- maxdigits = digits; number_value = value; goto do_number
-#define DO_NUMBER_NOPAD(digits, value) \
- maxdigits = digits; number_value = value; goto do_number_nopad
-
- case 'C':
- DO_NUMBER (2, (1900 + tp->tm_year) / 100);
-
- case 'x':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, D_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'D': /* GNU extension. */
- subfmt = "%m/%d/%y";
- goto subformat;
-
- case 'd':
- DO_NUMBER (2, tp->tm_mday);
-
- case 'e': /* GNU extension: %d, but blank-padded. */
-#if 0
- DO_NUMBER_NOPAD (2, tp->tm_mday);
-#else
- DO_NUMBER (2, tp->tm_mday);
-#endif
-
- /* All numeric formats set MAXDIGITS and NUMBER_VALUE and then
- jump to one of these two labels. */
-
- do_number_nopad:
- /* Force `-' flag. */
- pad = pad_none;
-
- do_number:
- {
- /* Format the number according to the PAD flag. */
-
- register char *nf = &number_fmt[1];
- int printed;
-
- switch (pad)
- {
- case pad_zero:
- *nf++ = '0';
- case pad_space:
- *nf++ = '0' + maxdigits;
- case pad_none:
- *nf++ = 'u';
- *nf = '\0';
- }
-
-#ifdef _LIBC
- if (i + maxdigits >= maxsize)
- return 0;
- printed = sprintf (p, number_fmt, number_value);
- i += printed;
- p += printed;
-#else
- add (maxdigits, sprintf (p, number_fmt, number_value);
- printed = strlen (p));
-#endif
-
- break;
- }
-
-
- case 'H':
- DO_NUMBER (2, tp->tm_hour);
-
- case 'I':
- DO_NUMBER (2, hour12);
-
- case 'k': /* GNU extension. */
- DO_NUMBER_NOPAD (2, tp->tm_hour);
-
- case 'l': /* GNU extension. */
- DO_NUMBER_NOPAD (2, hour12);
-
- case 'j':
- DO_NUMBER (3, 1 + tp->tm_yday);
-
- case 'M':
- DO_NUMBER (2, tp->tm_min);
-
- case 'm':
- DO_NUMBER (2, tp->tm_mon + 1);
-
- case 'n': /* GNU extension. */
- add (1, *p = '\n');
- break;
-
- case 'p':
- cpy(ap_len, ampm);
- break;
-
- case 'R': /* GNU extension. */
- subfmt = "%H:%M";
- goto subformat;
-
- case 'r': /* GNU extension. */
- subfmt = "%I:%M:%S %p";
- goto subformat;
-
- case 'S':
- DO_NUMBER (2, tp->tm_sec);
-
- case 'X':
-#ifdef __UCLIBC_HAS_LOCALE__
- subfmt = _NL_CURRENT (LC_TIME, T_FMT);
- goto subformat;
-#endif
- /* Fall through. */
- case 'T': /* GNU extenstion. */
- subfmt = "%H:%M:%S";
- goto subformat;
-
- case 't': /* GNU extenstion. */
- add (1, *p = '\t');
- break;
-
- case 'U':
- DO_NUMBER (2, y_week0);
-
- case 'V':
- DO_NUMBER (2, y_week2);
-
- case 'W':
- DO_NUMBER (2, y_week1);
-
- case 'w':
- DO_NUMBER (1, tp->tm_wday);
-
- case 'Y':
- DO_NUMBER (4, 1900 + tp->tm_year);
-
- case 'y':
- DO_NUMBER (2, tp->tm_year % 100);
-
- case 'Z':
- /* The tzset() call might have changed the value. */
- if (!(zone && *zone) && tp->tm_isdst >= 0)
- zone = tzname[tp->tm_isdst];
- if (! zone)
- zone = ""; /* POSIX.2 requires the empty string here. */
- cpy(zonelen, zone);
- break;
-
- default:
- /* Bad format. */
- break;
- }
- }
-
- if (p)
- *p = '\0';
- return i;
-}
diff --git a/libc/misc/time/strptime.c b/libc/misc/time/strptime.c
deleted file mode 100644
index 749eb797d..000000000
--- a/libc/misc/time/strptime.c
+++ /dev/null
@@ -1,983 +0,0 @@
-/* Convert a string representation of time to a time value.
- Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* XXX This version of the implementation is not really complete.
- Some of the fields cannot add information alone. But if seeing
- some of them in the same format (such as year, week and weekday)
- this is enough information for determining the date. */
-
-#include <features.h>
-#include <ctype.h>
-#include <langinfo.h>
-#include <limits.h>
-#include <string.h>
-#include <time.h>
-
-#undef ENABLE_ERA_JUNK
-
-
-#define match_char(ch1, ch2) if (ch1 != ch2) return NULL
-#if defined __GNUC__ && __GNUC__ >= 2
-# define match_string(cs1, s2) \
- ({ size_t len = strlen (cs1); \
- int result = strncasecmp ((cs1), (s2), len) == 0; \
- if (result) (s2) += len; \
- result; })
-#else
-/* Oh come on. Get a reasonable compiler. */
-# define match_string(cs1, s2) \
- (strncasecmp ((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1))
-#endif
-/* We intentionally do not use isdigit() for testing because this will
- lead to problems with the wide character version. */
-#define get_number(from, to, n) \
- do { \
- int __n = n; \
- val = 0; \
- while (*rp == ' ') \
- ++rp; \
- if (*rp < '0' || *rp > '9') \
- return NULL; \
- do { \
- val *= 10; \
- val += *rp++ - '0'; \
- } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \
- if (val < from || val > to) \
- return NULL; \
- } while (0)
-#ifdef __UCLIBC_HAS_LOCALE__
-# define get_alt_number(from, to, n) \
- ({ \
- __label__ do_normal; \
- \
- if (*decided != raw) \
- { \
- val = _nl_parse_alt_digit (&rp); \
- if (val == -1 && *decided != loc) \
- { \
- *decided = loc; \
- goto do_normal; \
- } \
- if (val < from || val > to) \
- return NULL; \
- } \
- else \
- { \
- do_normal: \
- get_number (from, to, n); \
- } \
- 0; \
- })
-#else
-# define get_alt_number(from, to, n) \
- /* We don't have the alternate representation. */ \
- get_number(from, to, n)
-#endif
-#define recursive(new_fmt) \
- (*(new_fmt) != '\0' \
- && (rp = __strptime_internal (rp, (new_fmt), tm, decided, era_cnt)) != NULL)
-
-
-#ifdef __UCLIBC_HAS_LOCALE__
-/* This is defined in locale/C-time.c in the GNU libc. */
-extern const struct locale_data _nl_C_LC_TIME;
-extern const unsigned short int __mon_yday[2][13];
-
-# define __weekday_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (DAY_1)].string)
-# define __ab_weekday_name \
- (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)].string)
-# define __month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (MON_1)].string)
-# define __ab_month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)].string)
-# define HERE_D_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_T_FMT)].string)
-# define HERE_D_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_FMT)].string)
-# define HERE_AM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (AM_STR)].string)
-# define HERE_PM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (PM_STR)].string)
-# define HERE_T_FMT_AMPM \
- (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT_AMPM)].string)
-# define HERE_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT)].string)
-
-# define strncasecmp(s1, s2, n) __strncasecmp (s1, s2, n)
-#else
-extern char const __weekday_name[][10];
-extern char const __ab_weekday_name[][4];
-extern char const __month_name[][10];
-extern char const __ab_month_name[][4];
-extern const unsigned short int __mon_yday[2][13];
-# define HERE_D_T_FMT "%a %b %e %H:%M:%S %Y"
-# define HERE_D_FMT "%m/%d/%y"
-# define HERE_AM_STR "AM"
-# define HERE_PM_STR "PM"
-# define HERE_T_FMT_AMPM "%I:%M:%S %p"
-# define HERE_T_FMT "%H:%M:%S"
-#endif
-
-/* Status of lookup: do we use the locale data or the raw data? */
-enum locale_status { not, loc, raw };
-
-
-#ifndef __isleap
-/* Nonzero if YEAR is a leap year (every 4 years,
- except every 100th isn't, and every 400th is). */
-# define __isleap(year) \
- ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-#endif
-
-/* Compute the day of the week. */
-static void
-day_of_the_week (struct tm *tm)
-{
- /* We know that January 1st 1970 was a Thursday (= 4). Compute the
- the difference between this data in the one on TM and so determine
- the weekday. */
- int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2);
- int wday = (-473
- + (365 * (tm->tm_year - 70))
- + (corr_year / 4)
- - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0)
- + (((corr_year / 4) / 25) / 4)
- + __mon_yday[0][tm->tm_mon]
- + tm->tm_mday - 1);
- tm->tm_wday = ((wday % 7) + 7) % 7;
-}
-
-/* Compute the day of the year. */
-static void
-day_of_the_year (struct tm *tm)
-{
- tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon]
- + (tm->tm_mday - 1));
-}
-
-
-static char * __strptime_internal (rp, fmt, tm, decided, era_cnt)
- const char *rp;
- const char *fmt;
- struct tm *tm;
- enum locale_status *decided;
- int era_cnt;
-{
- const char *rp_backup;
- int cnt;
- size_t val;
- int have_I, is_pm;
- int century, want_century;
- int want_era;
- int have_wday, want_xday;
- int have_yday;
- int have_mon, have_mday;
- int have_uweek, have_wweek;
- int week_no;
-#ifdef ENABLE_ERA_JUNK
- size_t num_eras;
- struct era_entry *era;
-
- era = NULL;
-#endif
- have_I = is_pm = 0;
- century = -1;
- want_century = 0;
- want_era = 0;
- week_no = 0;
-
- have_wday = want_xday = have_yday = have_mon = have_mday = have_uweek = 0;
- have_wweek = 0;
-
- while (*fmt != '\0')
- {
- /* A white space in the format string matches 0 more or white
- space in the input string. */
- if (isspace (*fmt))
- {
- while (isspace (*rp))
- ++rp;
- ++fmt;
- continue;
- }
-
- /* Any character but `%' must be matched by the same character
- in the iput string. */
- if (*fmt != '%')
- {
- match_char (*fmt++, *rp++);
- continue;
- }
-
- ++fmt;
-#ifndef __UCLIBC_HAS_LOCALE__
- /* We need this for handling the `E' modifier. */
-start_over:
-#endif
-
- /* Make back up of current processing pointer. */
- rp_backup = rp;
-
- switch (*fmt++)
- {
- case '%':
- /* Match the `%' character itself. */
- match_char ('%', *rp++);
- break;
- case 'a':
- case 'A':
- /* Match day of week. */
- for (cnt = 0; cnt < 7; ++cnt)
- {
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt),
- __weekday_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt),
- __ab_weekday_name[cnt]))
- *decided = loc;
- break;
- }
- }
-#endif
- if (*decided != loc
- && (match_string (__weekday_name[cnt], rp)
- || match_string (__ab_weekday_name[cnt], rp)))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 7)
- /* Does not match a weekday name. */
- return NULL;
- tm->tm_wday = cnt;
- have_wday = 1;
- break;
- case 'b':
- case 'B':
- case 'h':
- /* Match month name. */
- for (cnt = 0; cnt < 12; ++cnt)
- {
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt),
- __month_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt),
- __ab_month_name[cnt]))
- *decided = loc;
- break;
- }
- }
-#endif
- if (match_string (__month_name[cnt], rp)
- || match_string (__ab_month_name[cnt], rp))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 12)
- /* Does not match a month name. */
- return NULL;
- tm->tm_mon = cnt;
- want_xday = 1;
- break;
- case 'c':
- /* Match locale's date and time format. */
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
- /* Match century number. */
-#ifdef __UCLIBC_HAS_LOCALE__
-match_century:
-#endif
- get_number (0, 99, 2);
- century = val;
- want_xday = 1;
- break;
- case 'd':
- case 'e':
- /* Match day of month. */
- get_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'F':
- if (!recursive ("%Y-%m-%d"))
- return NULL;
- want_xday = 1;
- break;
- case 'x':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- /* Fall through. */
- case 'D':
- /* Match standard day format. */
- if (!recursive (HERE_D_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'k':
- case 'H':
- /* Match hour in 24-hour clock. */
- get_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'l':
- /* Match hour in 12-hour clock. GNU extension. */
- case 'I':
- /* Match hour in 12-hour clock. */
- get_number (1, 12, 2);
- tm->tm_hour = val % 12;
- have_I = 1;
- break;
- case 'j':
- /* Match day number of year. */
- get_number (1, 366, 3);
- tm->tm_yday = val - 1;
- have_yday = 1;
- break;
- case 'm':
- /* Match number of month. */
- get_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minute. */
- get_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'n':
- case 't':
- /* Match any white space. */
- while (isspace (*rp))
- ++rp;
- break;
- case 'p':
- /* Match locale's equivalent of AM/PM. */
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR))
- *decided = loc;
- is_pm = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!match_string (HERE_AM_STR, rp))
- if (match_string (HERE_PM_STR, rp))
- is_pm = 1;
- else
- return NULL;
- break;
- case 'r':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM),
- HERE_T_FMT_AMPM))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!recursive (HERE_T_FMT_AMPM))
- return NULL;
- break;
- case 'R':
- if (!recursive ("%H:%M"))
- return NULL;
- break;
- case 's':
- {
- /* The number of seconds may be very high so we cannot use
- the `get_number' macro. Instead read the number
- character for character and construct the result while
- doing this. */
- time_t secs = 0;
- if (*rp < '0' || *rp > '9')
- /* We need at least one digit. */
- return NULL;
-
- do
- {
- secs *= 10;
- secs += *rp++ - '0';
- }
- while (*rp >= '0' && *rp <= '9');
-
- if (localtime_r (&secs, tm) == NULL)
- /* Error in function. */
- return NULL;
- }
- break;
- case 'S':
- get_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'X':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
-#endif
- /* Fall through. */
- case 'T':
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- case 'u':
- get_number (1, 7, 1);
- tm->tm_wday = val % 7;
- have_wday = 1;
- break;
- case 'g':
- get_number (0, 99, 2);
- /* XXX This cannot determine any field in TM. */
- break;
- case 'G':
- if (*rp < '0' || *rp > '9')
- return NULL;
- /* XXX Ignore the number since we would need some more
- information to compute a real date. */
- do
- ++rp;
- while (*rp >= '0' && *rp <= '9');
- break;
- case 'U':
- get_number (0, 53, 2);
- week_no = val;
- have_uweek = 1;
- break;
- case 'W':
- get_number (0, 53, 2);
- week_no = val;
- have_wweek = 1;
- break;
- case 'V':
- get_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without some
- information. */
- break;
- case 'w':
- /* Match number of weekday. */
- get_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
-#ifdef __UCLIBC_HAS_LOCALE__
-match_year_in_century:
-#endif
- /* Match year within century. */
- get_number (0, 99, 2);
- /* The "Year 2000: The Millennium Rollover" paper suggests that
- values in the range 69-99 refer to the twentieth century. */
- tm->tm_year = val >= 69 ? val : val + 100;
- /* Indicate that we want to use the century, if specified. */
- want_century = 1;
- want_xday = 1;
- break;
- case 'Y':
- /* Match year including century number. */
- get_number (0, 9999, 4);
- tm->tm_year = val - 1900;
- want_century = 0;
- want_xday = 1;
- break;
- case 'Z':
- /* XXX How to handle this? */
- break;
- case 'E':
-#ifdef __UCLIBC_HAS_LOCALE__
- switch (*fmt++)
- {
- case 'c':
- /* Match locale's alternate date and time format. */
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
- /* The C locale has no era information, so use the
- normal representation. */
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
-#ifdef ENABLE_ERA_JUNK
- if (*decided != raw)
- {
- if (era_cnt >= 0)
- {
- era = _nl_select_era_entry (era_cnt);
- if (match_string (era->era_name, rp))
- {
- *decided = loc;
- break;
- }
- else
- return NULL;
- }
- else
- {
- num_eras = _NL_CURRENT_WORD (LC_TIME,
- _NL_TIME_ERA_NUM_ENTRIES);
- for (era_cnt = 0; era_cnt < (int) num_eras;
- ++era_cnt, rp = rp_backup)
- {
- era = _nl_select_era_entry (era_cnt);
- if (match_string (era->era_name, rp))
- {
- *decided = loc;
- break;
- }
- }
- if (era_cnt == (int) num_eras)
- {
- era_cnt = -1;
- if (*decided == loc)
- return NULL;
- }
- else
- break;
- }
-
- *decided = raw;
- }
-#endif
- /* The C locale has no era information, so use the
- normal representation. */
- goto match_century;
- case 'y':
- if (*decided == raw)
- goto match_year_in_century;
-
- get_number(0, 9999, 4);
- tm->tm_year = val;
- want_era = 1;
- want_xday = 1;
- want_century = 1;
- break;
- case 'Y':
-#ifdef ENABLE_ERA_JUNK
- if (*decided != raw)
- {
- num_eras = _NL_CURRENT_WORD (LC_TIME,
- _NL_TIME_ERA_NUM_ENTRIES);
- for (era_cnt = 0; era_cnt < (int) num_eras;
- ++era_cnt, rp = rp_backup)
- {
- era = _nl_select_era_entry (era_cnt);
- if (recursive (era->era_format))
- break;
- }
- if (era_cnt == (int) num_eras)
- {
- era_cnt = -1;
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- *decided = loc;
- era_cnt = -1;
- break;
- }
-
- *decided = raw;
- }
-#endif
- get_number (0, 9999, 4);
- tm->tm_year = val - 1900;
- want_century = 0;
- want_xday = 1;
- break;
- case 'x':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_D_FMT))
- return NULL;
- break;
- case 'X':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- default:
- return NULL;
- }
- break;
-#else
- /* We have no information about the era format. Just use
- the normal format. */
- if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y'
- && *fmt != 'x' && *fmt != 'X')
- /* This is an illegal format. */
- return NULL;
-
- goto start_over;
-#endif
- case 'O':
- switch (*fmt++)
- {
- case 'd':
- case 'e':
- /* Match day of month using alternate numeric symbols. */
- get_alt_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'H':
- /* Match hour in 24-hour clock using alternate numeric
- symbols. */
- get_alt_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'I':
- /* Match hour in 12-hour clock using alternate numeric
- symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_hour = val % 12;
- have_I = 1;
- break;
- case 'm':
- /* Match month using alternate numeric symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minutes using alternate numeric symbols. */
- get_alt_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'S':
- /* Match seconds using alternate numeric symbols. */
- get_alt_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'U':
- get_alt_number (0, 53, 2);
- week_no = val;
- have_uweek = 1;
- break;
- case 'W':
- get_alt_number (0, 53, 2);
- week_no = val;
- have_wweek = 1;
- break;
- case 'V':
- get_alt_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without
- further information. */
- break;
- case 'w':
- /* Match number of weekday using alternate numeric symbols. */
- get_alt_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
- /* Match year within century using alternate numeric symbols. */
- get_alt_number (0, 99, 2);
- tm->tm_year = val >= 69 ? val : val + 100;
- want_xday = 1;
- break;
- default:
- return NULL;
- }
- break;
- default:
- return NULL;
- }
- }
-
- if (have_I && is_pm)
- tm->tm_hour += 12;
-
- if (century != -1)
- {
- if (want_century)
- tm->tm_year = tm->tm_year % 100 + (century - 19) * 100;
- else
- /* Only the century, but not the year. Strange, but so be it. */
- tm->tm_year = (century - 19) * 100;
- }
-
-#ifdef ENABLE_ERA_JUNK
- if (era_cnt != -1)
- {
- era = _nl_select_era_entry (era_cnt);
- if (want_era)
- tm->tm_year = (era->start_date[0]
- + ((tm->tm_year - era->offset)
- * era->absolute_direction));
- else
- /* Era start year assumed. */
- tm->tm_year = era->start_date[0];
- }
- else
-#endif
- if (want_era)
- {
- /* No era found but we have seen an E modifier. Rectify some
- values. */
- if (want_century && century == -1 && tm->tm_year < 69)
- tm->tm_year += 100;
- }
-
- if (want_xday && !have_wday)
- {
- if ( !(have_mon && have_mday) && have_yday)
- {
- /* We don't have tm_mon and/or tm_mday, compute them. */
- int t_mon = 0;
- while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday)
- t_mon++;
- if (!have_mon)
- tm->tm_mon = t_mon - 1;
- if (!have_mday)
- tm->tm_mday =
- (tm->tm_yday
- - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1);
- }
- day_of_the_week (tm);
- }
-
- if (want_xday && !have_yday)
- day_of_the_year (tm);
-
- if ((have_uweek || have_wweek) && have_wday)
- {
- int save_wday = tm->tm_wday;
- int save_mday = tm->tm_mday;
- int save_mon = tm->tm_mon;
- int w_offset = have_uweek ? 0 : 1;
-
- tm->tm_mday = 1;
- tm->tm_mon = 0;
- day_of_the_week (tm);
- if (have_mday)
- tm->tm_mday = save_mday;
- if (have_mon)
- tm->tm_mon = save_mon;
-
- if (!have_yday)
- tm->tm_yday = ((7 - (tm->tm_wday - w_offset)) % 7
- + (week_no - 1) *7
- + save_wday - w_offset);
-
- if (!have_mday || !have_mon)
- {
- int t_mon = 0;
- while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon]
- <= tm->tm_yday)
- t_mon++;
- if (!have_mon)
- tm->tm_mon = t_mon - 1;
- if (!have_mday)
- tm->tm_mday =
- (tm->tm_yday
- - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1);
- }
-
- tm->tm_wday = save_wday;
- }
-
- return (char *) rp;
-}
-
-
-char * strptime (buf, format, tm)
- const char *buf;
- const char *format;
- struct tm *tm;
-{
- enum locale_status decided;
-
-#ifdef __UCLIBC_HAS_LOCALE__
- decided = not;
-#else
- decided = raw;
-#endif
- return __strptime_internal (buf, format, tm, &decided, -1);
-}
diff --git a/libc/misc/time/time.c b/libc/misc/time/time.c
new file mode 100644
index 000000000..4371a9cfd
--- /dev/null
+++ b/libc/misc/time/time.c
@@ -0,0 +1,1864 @@
+/* Copyright (C) 2002 Manuel Novoa III
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION!
+ *
+ * Besides uClibc, I'm using this code in my libc for elks, which is
+ * a 16-bit environment with a fairly limited compiler. It would make
+ * things much easier for me if this file isn't modified unnecessarily.
+ * In particular, please put any new or replacement functions somewhere
+ * else, and modify the makefile to use your version instead.
+ * Thanks. Manuel
+ *
+ * ATTENTION! ATTENTION! ATTENTION! ATTENTION! ATTENTION! */
+
+/* June 15, 2002 Initial Notes:
+ *
+ * Note: It is assumed throught that time_t is either long or unsigned long.
+ * Similarly, clock_t is assumed to be long int.
+ *
+ * Warning: Assumptions are made about the layout of struct tm! It is
+ * assumed that the initial fields of struct tm are (in order):
+ * tm_sec, tm_min, tm_hour, tm_mday, tm_mon, tm_year, tm_wday, tm_yday
+ *
+ * Reached the inital goal of supporting the ANSI/ISO C99 time functions
+ * as well as SUSv3's strptime. All timezone info is obtained from the
+ * TZ env variable.
+ *
+ * Differences from glibc worth noting:
+ *
+ * Leap seconds are not considered here.
+ *
+ * glibc stores additional timezone info the struct tm, whereas we don't.
+ *
+ * Alternate digits and era handling are not currently implemented.
+ * The modifiers are accepted, and tested for validity with the following
+ * specifier, but are ignored otherwise.
+ *
+ * strftime does not implement glibc extension modifiers or widths for
+ * conversion specifiers. However it does implement the glibc
+ * extension specifiers %l, %k, and %s. It also recognizes %P, but
+ * treats it as a synonym for %p; i.e. doesn't convert to lower case.
+ *
+ * strptime implements the glibc extension specifiers. However, it follows
+ * SUSv3 in requiring at least one non-alphanumeric char between
+ * conversion specifiers. Also, strptime only sets struct tm fields
+ * for which format specifiers appear and does not try to infer other
+ * fields (such as wday) as glibc's version does.
+ *
+ * TODO - Since glibc's %l and %k can space-pad their output in strftime,
+ * it might be reasonable to eat whitespace first for those specifiers.
+ * This could be done by pushing " %I" and " %H" respectively so that
+ * leading whitespace is consumed. This is really only an issue if %l
+ * or %k occurs at the start of the format string.
+ *
+ * TODO - Implement getdate? tzfile? struct tm extensions?
+ *
+ * TODO - Rework _time_mktime to remove the dependency on long long.
+ *
+ * TODO - Make tzset and _time_tzinfo refs threadsafe.
+ */
+
+#define _GNU_SOURCE
+#define _STDIO_UTILITY
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <time.h>
+#include <limits.h>
+#include <assert.h>
+#include <errno.h>
+#include <ctype.h>
+#include <langinfo.h>
+#include <locale.h>
+
+#ifndef __isleap
+#define __isleap(y) ( !((y) % 4) && ( ((y) % 100) || !((y) % 400) ) )
+#endif
+
+#ifndef TZNAME_MAX
+#define TZNAME_MAX _POSIX_TZNAME_MAX
+#endif
+
+/* TODO - This stuff belongs in some include/bits/ file. */
+#ifndef __BCC__
+#undef CLK_TCK
+#if (TARGET_ARCH == alpha) || (TARGET_ARCH == ia64)
+#define CLK_TCK 1024
+#else
+#define CLK_TCK 100
+#endif
+#endif
+
+/* The era code is currently unfinished. */
+/* #define ENABLE_ERA_CODE */
+
+extern struct tm __time_tm;
+
+typedef struct {
+ long gmt_offset;
+ long dst_offset;
+ short day; /* for J or normal */
+ short week;
+ short month;
+ short rule_type; /* J, M, \0 */
+ char tzname[TZNAME_MAX+1];
+} rule_struct;
+
+extern rule_struct _time_tzinfo[2];
+
+extern struct tm *_time_t2tm(const time_t *__restrict timer,
+ int offset, struct tm *__restrict result);
+
+extern time_t _time_mktime(struct tm *timeptr, int store_on_success);
+
+/**********************************************************************/
+#ifdef L_asctime
+
+static char __time_str[26];
+
+char *asctime(const struct tm *__restrict ptm)
+{
+ return asctime_r(ptm, __time_str);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_asctime_r
+
+/* Strictly speaking, this implementation isn't correct. ANSI/ISO specifies
+ * that the implementation of asctime() be equivalent to
+ *
+ * char *asctime(const struct tm *timeptr)
+ * {
+ * static char wday_name[7][3] = {
+ * "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+ * };
+ * static char mon_name[12][3] = {
+ * "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ * "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+ * };
+ * static char result[26];
+ *
+ * sprintf(result, "%.3s %.3s%3d %.2d:%.2d:%.2d %d\n",
+ * wday_name[timeptr->tm_wday],
+ * mon_name[timeptr->tm_mon],
+ * timeptr->tm_mday, timeptr->tm_hour,
+ * timeptr->tm_min, timeptr->tm_sec,
+ * 1900 + timeptr->tm_year);
+ * return result;
+ * }
+ *
+ * but the above is either inherently unsafe, or carries with it the implicit
+ * assumption that all fields of timeptr fall within their usual ranges, and
+ * that the tm_year value falls in the range [-2899,8099] to avoid overflowing
+ * the static buffer.
+ *
+ * If we take the implicit assumption as given, then the implementation below
+ * is still incorrect for tm_year values < -900, as there will be either
+ * 0-padding and/or a missing negative sign for the year conversion . But given
+ * the ususal use of asctime(), I think it isn't unreasonable to restrict correct
+ * operation to the domain of years between 1000 and 9999.
+ */
+
+/* This is generally a good thing, but if you're _sure_ any data passed will be
+ * in range, you can #undef this. */
+#define SAFE_ASCTIME_R 1
+
+static const unsigned char at_data[] = {
+ 'S', 'u', 'n', 'M', 'o', 'n', 'T', 'u', 'e', 'W', 'e', 'd',
+ 'T', 'h', 'u', 'F', 'r', 'i', 'S', 'a', 't',
+
+ 'J', 'a', 'n', 'F', 'e', 'b', 'M', 'a', 'r', 'A', 'p', 'r',
+ 'M', 'a', 'y', 'J', 'u', 'n', 'J', 'u', 'l', 'A', 'u', 'g',
+ 'S', 'e', 'p', 'O', 'c', 't', 'N', 'o', 'v', 'D', 'e', 'c',
+
+#ifdef SAFE_ASCTIME_R
+ '?', '?', '?',
+#endif
+ ' ', '?', '?', '?',
+ ' ', '0',
+ offsetof(struct tm, tm_mday),
+ ' ', '0',
+ offsetof(struct tm, tm_hour),
+ ':', '0',
+ offsetof(struct tm, tm_min),
+ ':', '0',
+ offsetof(struct tm, tm_sec),
+ ' ', '?', '?', '?', '?', '\n', 0
+};
+
+char *asctime_r(register const struct tm *__restrict ptm,
+ register char *__restrict buffer)
+{
+ int tmp;
+
+ assert(ptm);
+ assert(buffer);
+
+#ifdef SAFE_ASCTIME_R
+ memcpy(buffer, at_data + 3*(7 + 12), sizeof(at_data) - 3*(7 + 12));
+
+ if (((unsigned int)(ptm->tm_wday)) <= 6) {
+ memcpy(buffer, at_data + 3 * ptm->tm_wday, 3);
+ }
+
+ if (((unsigned int)(ptm->tm_mon)) <= 11) {
+ memcpy(buffer + 4, at_data + 3*7 + 3 * ptm->tm_mon, 3);
+ }
+#else
+ assert(((unsigned int)(ptm->tm_wday)) <= 6);
+ assert(((unsigned int)(ptm->tm_mon)) <= 11);
+
+ memcpy(buffer, at_data + 3*(7 + 12) - 3, sizeof(at_data) + 3 - 3*(7 + 12));
+
+ memcpy(buffer, at_data + 3 * ptm->tm_wday, 3);
+ memcpy(buffer + 4, at_data + 3*7 + 3 * ptm->tm_mon, 3);
+#endif
+
+#ifdef SAFE_ASCTIME_R
+ buffer += 19;
+ tmp = ptm->tm_year + 1900;
+ if (((unsigned int) tmp) < 10000) {
+ buffer += 4;
+ do {
+ *buffer = '0' + (tmp % 10);
+ tmp /= 10;
+ } while (*--buffer == '?');
+ }
+#else /* SAFE_ASCTIME_R */
+ buffer += 23;
+ tmp = ptm->tm_year + 1900;
+ assert( ((unsigned int) tmp) < 10000 );
+ do {
+ *buffer = '0' + (tmp % 10);
+ tmp /= 10;
+ } while (*--buffer == '?');
+#endif /* SAFE_ASCTIME_R */
+
+ do {
+ --buffer;
+ tmp = *((int *)(((const char *) ptm) + (int) *buffer));
+#ifdef SAFE_ASCTIME_R
+ if (((unsigned int) tmp) >= 100) { /* Just check 2 digit non-neg. */
+ buffer[-1] = *buffer = '?';
+ } else
+#else /* SAFE_ASCTIME_R */
+ assert(((unsigned int) tmp) < 100); /* Just check 2 digit non-neg. */
+#endif /* SAFE_ASCTIME_R */
+ {
+ *buffer = '0' + (tmp % 10);
+#ifdef __BCC__
+ buffer[-1] = '0' + (tmp/10);
+#else /* __BCC__ */
+ buffer[-1] += (tmp/10);
+#endif /* __BCC__ */
+ }
+ } while ((buffer -= 2)[-2] == '0');
+
+ if (*++buffer == '0') { /* Space-pad day of month. */
+ *buffer = ' ';
+ }
+
+ return buffer - 8;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_clock
+
+#include <sys/times.h>
+
+/* Note: According to glibc...
+ * CAE XSH, Issue 4, Version 2: <time.h>
+ * The value of CLOCKS_PER_SEC is required to be 1 million on all
+ * XSI-conformant systems.
+ */
+
+#ifndef __BCC__
+#if CLOCKS_PER_SEC != 1000000L
+#error unexpected value for CLOCKS_PER_SEC!
+#endif
+#endif
+
+clock_t clock(void)
+{
+ struct tms xtms;
+ unsigned long t;
+
+ times(&xtms);
+ t = ((unsigned long) xtms.tms_utime) + xtms.tms_stime;
+#if (CLK_TCK == CLOCKS_PER_SEC)
+ return (t <= LONG_MAX) ? t : -1;
+#elif (CLK_TCK == 1) || (CLK_TCK == 10) || (CLK_TCK == 100) || (CLK_TCK == 1000)
+ return (t <= (LONG_MAX / (CLOCKS_PER_SEC/CLK_TCK)))
+ ? t * (CLOCKS_PER_SEC/CLK_TCK)
+ : -1;
+#elif (CLK_TCK == 1024)
+ return (t <= ((LONG_MAX / CLOCKS_PER_SEC) * CLK_TCK
+ + ((LONG_MAX % CLOCKS_PER_SEC) * CLK_TCK) / CLOCKS_PER_SEC))
+ ? ((t >> 10) * CLOCKS_PER_SEC) + (((t & 1023) * CLOCKS_PER_SEC) >> 10)
+ : -1;
+#else
+#error fix for CLK_TCK
+#endif
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_ctime
+
+char *ctime(const time_t *clock)
+{
+ /* ANSI/ISO/SUSv3 say that ctime is equivalent to the following. */
+ return asctime(localtime(clock));
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_ctime_r
+
+char *ctime_r(const time_t *clock, char *buf)
+{
+ struct tm xtms;
+
+ return asctime_r(localtime_r(clock, &xtms), buf);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_difftime
+
+#include <float.h>
+
+#if FLT_RADIX != 2
+#error difftime implementation assumptions violated for you arch!
+#endif
+
+double difftime(time_t time1, time_t time0)
+{
+#if (LONG_MAX >> DBL_MANT_DIG) == 0
+
+ /* time_t fits in the mantissa of a double. */
+ return ((double) time1) - time0;
+
+#elif ((LONG_MAX >> DBL_MANT_DIG) >> DBL_MANT_DIG) == 0
+
+ /* time_t can overflow the mantissa of a double. */
+ time_t t1, t0, d;
+
+ d = ((time_t) 1) << DBL_MANT_DIG;
+ t1 = time1 / d;
+ time1 -= (t1 * d);
+ t0 = time0 / d;
+ time0 -= (t0*d);
+
+ /* Since FLT_RADIX==2 and d is a power of 2, the only possible
+ * rounding error in the expression below would occur from the
+ * addition. */
+ return (((double) t1) - t0) * d + (((double) time1) - time0);
+
+#else
+#error difftime needs special implementation on your arch.
+#endif
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_gmtime
+
+struct tm *gmtime(const time_t *timer)
+{
+ register struct tm *ptm = &__time_tm;
+
+ _time_t2tm(timer, 0, ptm); /* Can return NULL... */
+
+ return ptm;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_gmtime_r
+
+struct tm *gmtime_r(const time_t *__restrict timer,
+ struct tm *__restrict result)
+{
+ return _time_t2tm(timer, 0, result);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_localtime
+
+struct tm *localtime(const time_t *timer)
+{
+ register struct tm *ptm = &__time_tm;
+
+ tzset();
+
+ localtime_r(timer, ptm); /* Can return NULL... */
+
+ return ptm;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_localtime_r
+
+static const unsigned char day_cor[] = { /* non-leap */
+ 31, 31, 34, 34, 35, 35, 36, 36, 36, 37, 37, 38, 38
+/* 0, 0, 3, 3, 4, 4, 5, 5, 5, 6, 6, 7, 7 */
+/* 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 */
+};
+
+static int tm_isdst(register const struct tm *__restrict ptm)
+{
+ register rule_struct *r = _time_tzinfo;
+ long sec;
+ int i, isdst, isleap, day, day0, monlen, mday, oday;
+
+ isdst = 0;
+ if (r[1].tzname[0] != 0) {
+ /* First, get the current seconds offset from the start of the year.
+ * Fields of ptm are assumed to be in their normal ranges. */
+ sec = ptm->tm_sec
+ + 60 * (ptm->tm_min
+ + 60 * (long)(ptm->tm_hour
+ + 24 * ptm->tm_yday));
+ /* Do some prep work. */
+ i = (ptm->tm_year % 400) + 1900; /* Make sure we don't overflow. */
+ isleap = __isleap(i);
+ --i;
+ day0 = (1
+ + i /* Normal years increment 1 wday. */
+ + (i/4)
+ - (i/100)
+ + (i/400) ) % 7;
+ i = 0;
+ do {
+ day = r->day; /* Common for 'J' and # case. */
+ if (r->rule_type == 'J') {
+ if (!isleap || (day < (31+29))) {
+ --day;
+ }
+ } else if (r->rule_type == 'M') {
+ /* Find 0-based day number for 1st of the month. */
+ day = 31*r->month - day_cor[r->month -1];
+ if (isleap && (day >= 59)) {
+ ++day;
+ }
+ monlen = 31 + day_cor[r->month -1] - day_cor[r->month];
+ if (isleap && (r->month > 1)) {
+ ++monlen;
+ }
+ /* Wweekday (0 is Sunday) of 1st of the month
+ * is (day0 + day) % 7. */
+ if ((mday = r->day - ((day0 + day) % 7)) >= 0) {
+ mday -= 7; /* Back up into prev month since r->week>0. */
+ }
+ if ((mday += 7 * r->week) >= monlen) {
+ mday -= 7;
+ }
+ /* So, 0-based day number is... */
+ day += mday;
+ }
+
+ if (i != 0) {
+ /* Adjust sec since dst->std change time is in dst. */
+ sec += (r[-1].gmt_offset - r->gmt_offset);
+ if (oday > day) {
+ ++isdst; /* Year starts in dst. */
+ }
+ }
+ oday = day;
+
+ /* Now convert day to seconds and add offset and compare. */
+ if (sec >= (day * 86400L) + r->dst_offset) {
+ ++isdst;
+ }
+ ++r;
+ } while (++i < 2);
+ }
+ return (isdst & 1);
+}
+
+struct tm *localtime_r(register const time_t *__restrict timer,
+ register struct tm *__restrict result)
+{
+ time_t x[1];
+ long offset;
+ int days, dst;
+
+ dst = 0;
+ do {
+ days = -7;
+ offset = 604800L - _time_tzinfo[dst].gmt_offset;
+ if (*timer > (LONG_MAX - 604800L)) {
+ days = -days;
+ offset = -offset;
+ }
+ *x = *timer + offset;
+
+ _time_t2tm(x, days, result);
+
+ if (dst) {
+ result->tm_isdst = dst;
+ break;
+ }
+ ++dst;
+ } while ((result->tm_isdst = tm_isdst(result)) != 0);
+
+ return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_mktime
+
+time_t mktime(struct tm *timeptr)
+{
+ return _time_mktime(timeptr, 1);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_strftime
+
+#define NO_E_MOD 0x80
+#define NO_O_MOD 0x40
+
+#define ILLEGAL_SPEC 0x3f
+
+#define INT_SPEC 0x00 /* must be 0x00!! */
+#define STRING_SPEC 0x10 /* must be 0x10!! */
+#define CALC_SPEC 0x20
+#define STACKED_SPEC 0x30
+
+#define MASK_SPEC 0x30
+
+/* Compatibility:
+ *
+ * No alternate digit (%O?) handling. Always uses 0-9.
+ * Alternate locale format (%E?) handling is broken for nontrivial ERAs.
+ * glibc's %P is currently faked by %p. This means it doesn't do lower case.
+ * glibc's %k, %l, and %s are handled.
+ * glibc apparently allows (and ignores) extraneous 'E' and 'O' modifiers,
+ * while they are flagged as illegal conversions here.
+ */
+
+/* Warning: Assumes ASCII values! (as do lots of other things in the lib...) */
+static const unsigned char spec[] = {
+ /* A */ 0x03 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* B */ 0x04 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* C */ 0x0a | INT_SPEC | NO_O_MOD,
+ /* D */ 0x02 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* E */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* F */ 0x03 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* G */ 0x03 | CALC_SPEC | NO_E_MOD | NO_O_MOD,
+ /* H */ 0x0b | INT_SPEC | NO_E_MOD,
+ /* I */ 0x0c | INT_SPEC | NO_E_MOD,
+ /* J */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* K */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* L */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* M */ 0x0d | INT_SPEC | NO_E_MOD,
+ /* N */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* O */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* P */ 0x05 | STRING_SPEC | NO_E_MOD | NO_O_MOD, /* glibc ; use %p */
+ /* Q */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* R */ 0x04 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* S */ 0x0e | INT_SPEC | NO_E_MOD,
+ /* T */ 0x05 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* U */ 0x04 | CALC_SPEC | NO_E_MOD,
+ /* V */ 0x05 | CALC_SPEC | NO_E_MOD,
+ /* W */ 0x06 | CALC_SPEC | NO_E_MOD,
+ /* X */ 0x0a | STACKED_SPEC | NO_O_MOD,
+ /* Y */ 0x0f | INT_SPEC | NO_O_MOD,
+ /* Z */ 0x01 | CALC_SPEC | NO_E_MOD | NO_O_MOD,
+ '?', /* 26 */
+ '?', /* 27 */
+ '?', /* 28 */
+ '?', /* 29 */
+ 0, /* 30 */
+ 0, /* 31 */
+ /* a */ 0x00 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* b */ 0x01 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* c */ 0x08 | STACKED_SPEC | NO_O_MOD,
+ /* d */ 0x00 | INT_SPEC | NO_E_MOD,
+ /* e */ 0x01 | INT_SPEC | NO_E_MOD,
+ /* f */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* g */ 0x02 | CALC_SPEC | NO_E_MOD | NO_O_MOD,
+ /* h */ 0x01 | STRING_SPEC | NO_E_MOD | NO_O_MOD, /* same as b */
+ /* i */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* j */ 0x08 | INT_SPEC | NO_E_MOD | NO_O_MOD,
+ /* k */ 0x03 | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* l */ 0x04 | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* m */ 0x05 | INT_SPEC | NO_E_MOD,
+ /* n */ 0x00 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* o */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* p */ 0x02 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* q */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* r */ 0x0b | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* s */ 0x07 | CALC_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* t */ 0x01 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* u */ 0x07 | INT_SPEC | NO_E_MOD,
+ /* v */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* w */ 0x02 | INT_SPEC | NO_E_MOD,
+ /* x */ 0x09 | STACKED_SPEC | NO_O_MOD,
+ /* y */ 0x09 | INT_SPEC,
+ /* z */ 0x00 | CALC_SPEC | NO_E_MOD | NO_O_MOD,
+
+
+ /* WARNING!!! These are dependent on the layout of struct tm!!! */
+#define FIELD_MAX (26+6+26)
+ 60 /* 61? */, 59, 23, 31, 11, 0 /* 9999 */, 6, 0 /* 365 */,
+
+#define TP_OFFSETS (FIELD_MAX+8)
+ 3, /* d */
+ 3, /* e */
+ 6, /* w */
+ 2, /* k */
+ 2, /* l */
+ 4, /* m */
+ 0, /* CURRENTLY UNUSED */
+ /* NOTE: u,j,y order must be preserved as 6,7,5 seq is used in the code! */
+#define CALC_OFFSETS (TP_OFFSETS + 7)
+ 6, /* u */
+ 7, /* j */
+ 5, /* y */
+ 5, /* C */
+ 2, /* H */
+ 2, /* I */
+ 1, /* M */
+ 0, /* S */
+ 5, /* Y */
+ 6, /* a */
+ 4, /* b, h */
+ 2, /* p */
+ 6, /* A */
+ 4, /* B */
+ 2, /* P */
+
+#define TP_CODES (TP_OFFSETS + 16 + 6)
+ 2 | 16, /* d */
+ 2, /* e */
+ 0 | 16, /* w */
+ 2, /* k */
+ 2 | 32 | 0, /* l */
+ 2 | 16 | 1, /* m */
+ 0, /* CURRENTLY UNUSED */
+ 0 | 16 | 8 , /* u */
+ 4 | 16 | 1, /* j */
+ 2 | 128 | 32 | 16 , /* y */
+ 2 | 128 | 64 | 32 | 16 , /* C */
+ 2 | 16, /* H */
+ 2 | 32 | 16 | 0, /* I */
+ 2 | 16, /* M */
+ 2 | 16, /* S */
+ 6 | 16, /* Y */
+ 2, /* a */
+ 2, /* b, h */
+ 2 | 64, /* p */
+ 2, /* A */
+ 2, /* B */
+ 2 | 64, /* P */
+
+#define STRINGS_NL_ITEM_START (TP_CODES + 16 + 6)
+ _NL_ITEM_INDEX(ABDAY_1), /* a */
+ _NL_ITEM_INDEX(ABMON_1), /* b, h */
+ _NL_ITEM_INDEX(AM_STR), /* p */
+ _NL_ITEM_INDEX(DAY_1), /* A */
+ _NL_ITEM_INDEX(MON_1), /* B */
+ _NL_ITEM_INDEX(AM_STR), /* P -- wrong! need lower case */
+
+#define STACKED_STRINGS_START (STRINGS_NL_ITEM_START+6)
+ 6, 7, 8, 16, 24, 29, /* 6 - offsets from offset-count to strings */
+ '\n', 0, /* 2 */
+ '\t', 0, /* 2 */
+ '%', 'm', '/', '%', 'd', '/', '%', 'y', 0, /* 9 - %D */
+ '%', 'Y', '-', '%', 'm', '-', '%', 'd', 0, /* 9 - %F (glibc extension) */
+ '%', 'H', ':', '%', 'M', 0, /* 6 - %R*/
+ '%', 'H', ':', '%', 'M', ':', '%', 'S', 0, /* 9 - %T */
+
+#define STACKED_STRINGS_NL_ITEM_START (STACKED_STRINGS_START + 43)
+ _NL_ITEM_INDEX(D_T_FMT), /* c */
+ _NL_ITEM_INDEX(D_FMT), /* x */
+ _NL_ITEM_INDEX(T_FMT), /* X */
+ _NL_ITEM_INDEX(T_FMT_AMPM), /* r */
+#ifdef ENABLE_ERA_CODE
+ _NL_ITEM_INDEX(ERA_D_T_FMT), /* Ec */
+ _NL_ITEM_INDEX(ERA_D_FMT), /* Ex */
+ _NL_ITEM_INDEX(ERA_T_FMT), /* EX */
+#endif
+};
+
+static int load_field(int k, const struct tm *__restrict timeptr)
+{
+ int r;
+ int r_max;
+
+ r = ((int *) timeptr)[k];
+
+ r_max = spec[FIELD_MAX + k];
+
+ if (k == 7) {
+ r_max = 365;
+ } else if (k == 5) {
+ r += 1900;
+ r_max = 9999;
+ }
+
+ if ((((unsigned int) r) > r_max) || ((k == 3) && !r)) {
+ r = -1;
+ }
+
+ return r;
+}
+
+#define MAX_PUSH 4
+
+size_t strftime(char *__restrict s, size_t maxsize,
+ const char *__restrict format,
+ const struct tm *__restrict timeptr)
+{
+ long tzo;
+ register const char *p;
+ register const char *o;
+ const rule_struct *rsp;
+ const char *stack[MAX_PUSH];
+ size_t count;
+ size_t o_count;
+ int field_val, i, j, lvl;
+ int x[3]; /* wday, yday, year */
+ int isofm, days;
+ char buf[__UIM_BUFLEN_LONG];
+ unsigned char mod;
+ unsigned char code;
+
+ tzset(); /* We'll, let's get this out of the way. */
+
+ lvl = 0;
+ p = format;
+ count = maxsize;
+
+ LOOP:
+ if (!count) {
+ return 0;
+ }
+ if (!*p) {
+ if (lvl == 0) {
+ *s = 0; /* nul-terminate */
+ return maxsize - count;
+ }
+ p = stack[--lvl];
+ goto LOOP;
+ }
+
+ o_count = 1;
+ if ((*(o = p) == '%') && (*++p != '%')) {
+ o_count = 2;
+ mod = ILLEGAL_SPEC;
+ if ((*p == 'O') || (*p == 'E')) { /* modifier */
+ mod |= ((*p == 'O') ? NO_O_MOD : NO_E_MOD);
+ ++o_count;
+ ++p;
+ }
+ if ((((unsigned char)(((*p) | 0x20) - 'a')) >= 26)
+ || (((code = spec[(int)(*p - 'A')]) & mod) >= ILLEGAL_SPEC)
+ ) {
+ if (!*p) {
+ --p;
+ --o_count;
+ }
+ goto OUTPUT;
+ }
+ code &= ILLEGAL_SPEC; /* modifiers are preserved in mod var. */
+
+ if ((code & MASK_SPEC) == STACKED_SPEC) {
+ if (lvl == MAX_PUSH) {
+ goto OUTPUT; /* Stack full so treat as illegal spec. */
+ }
+ stack[lvl++] = ++p;
+ if ((code &= 0xf) < 8) {
+ p = ((const char *) spec) + STACKED_STRINGS_START + code;
+ p += *((unsigned char *)p);
+ goto LOOP;
+ }
+ p = ((const char *) spec) + STACKED_STRINGS_NL_ITEM_START
+ + (code & 7);
+#ifdef ENABLE_ERA_CODE
+ if ((mod & NO_E_MOD) /* Actually, this means E modifier present. */
+ && (*(o = nl_langinfo(_NL_ITEM(LC_TIME,
+ (int)(((unsigned char *)p)[4]))
+ )))
+ ) {
+ p = o;
+ goto LOOP;
+ }
+#endif
+ p = nl_langinfo(_NL_ITEM(LC_TIME,
+ (int)(*((unsigned char *)p))));
+ goto LOOP;
+ }
+
+ o = spec + 26; /* set to "????" */
+ if ((code & MASK_SPEC) == CALC_SPEC) {
+
+ if (*p == 's') {
+ time_t t;
+
+ /* Use a cast to silence the warning since *timeptr won't
+ * be changed. */
+ if ((t = _time_mktime((struct tm *) timeptr, 0))
+ == ((time_t) -1)
+ ) {
+ o_count = 1;
+ goto OUTPUT;
+ }
+#ifdef TIME_T_IS_UNSIGNED
+ o = _uintmaxtostr(buf + sizeof(buf) - 1,
+ (uintmax_t) t,
+ 10, __UIM_DECIMAL);
+#else
+ o = _uintmaxtostr(buf + sizeof(buf) - 1,
+ (uintmax_t) t,
+ -10, __UIM_DECIMAL);
+#endif
+ o_count = sizeof(buf);
+ goto OUTPUT;
+ } else if (((*p) | 0x20) == 'z') { /* 'z' or 'Z' */
+
+ if (timeptr->tm_isdst < 0) {
+ /* SUSv3 specifies this behavior for 'z', but we'll also
+ * treat it as "no timezone info" for 'Z' too. */
+ o_count = 0;
+ goto OUTPUT;
+ }
+
+ rsp = _time_tzinfo;
+ if (timeptr->tm_isdst > 0) {
+ ++rsp;
+ }
+
+ if (*p == 'Z') {
+ o = rsp->tzname;
+ assert(o != NULL);
+#if 0
+ if (!o) { /* PARANOIA */
+ o = spec+30; /* empty string */
+ }
+#endif
+ o_count = SIZE_MAX;
+ goto OUTPUT;
+ } else { /* z */
+ *s = '+';
+ if ((tzo = -rsp->gmt_offset) < 0) {
+ tzo = -tzo;
+ *s = '-';
+ }
+ ++s;
+ --count;
+
+ i = tzo / 60;
+ field_val = ((i / 60) * 100) + (i % 60);
+
+ i = 16 + 6; /* 0-fill, width = 4 */
+ }
+ } else {
+ /* TODO: don't need year for U, W */
+ for (i=0 ; i < 3 ; i++) {
+ if ((x[i] = load_field(spec[CALC_OFFSETS+i],timeptr)) < 0) {
+ goto OUTPUT;
+ }
+ }
+
+ i = 16 + 2; /* 0-fill, width = 2 */
+
+ if ((*p == 'U') || (*p == 'W')) {
+ field_val = ((x[1] - x[0]) + 7);
+ if (*p == 'W') {
+ ++field_val;
+ }
+ field_val /= 7;
+ if ((*p == 'W') && !x[0]) {
+ --field_val;
+ }
+ } else { /* ((*p == 'g') || (*p == 'G') || (*p == 'V')) */
+ ISO_LOOP:
+ isofm = (((x[1] - x[0]) + 11) % 7) - 3; /* [-3,3] */
+
+ if (x[1] < isofm) { /* belongs to previous year */
+ --x[2];
+ x[1] += 365 + __isleap(x[2]);
+ goto ISO_LOOP;
+ }
+
+ field_val = ((x[1] - isofm) / 7) + 1; /* week # */
+ days = 365 + __isleap(x[2]);
+ isofm = ((isofm + 7*53 + 3 - days)) %7 + days - 3; /* next year */
+ if (x[1] >= isofm) { /* next year */
+ x[1] -= days;
+ ++x[2];
+ goto ISO_LOOP;
+ }
+
+ if (*p != 'V') { /* need year */
+ field_val = x[2]; /* TODO: what if x[2] now 10000 ?? */
+ if (*p == 'g') {
+ field_val %= 100;
+ } else {
+ i = 16 + 6; /* 0-fill, width = 4 */
+ }
+ }
+ }
+ }
+ } else {
+ i = TP_OFFSETS + (code & 0x1f);
+ if ((field_val = load_field(spec[i],timeptr)) < 0) {
+ goto OUTPUT;
+ }
+
+ i = spec[i+(TP_CODES - TP_OFFSETS)];
+
+ j = (i & 128) ? 100: 12;
+ if (i & 64) {
+ field_val /= j;;
+ }
+ if (i & 32) {
+ field_val %= j;
+ if (((i&128) + field_val) == 0) { /* mod 12? == 0 */
+ field_val = j; /* set to 12 */
+ }
+ }
+ field_val += (i & 1);
+ if ((i & 8) && !field_val) {
+ field_val += 7;
+ }
+ }
+
+ if ((code & MASK_SPEC) == STRING_SPEC) {
+ o_count = SIZE_MAX;
+ field_val += spec[STRINGS_NL_ITEM_START + (code & 0xf)];
+ o = nl_langinfo(_NL_ITEM(LC_TIME, field_val));
+ } else {
+ o_count = ((i >> 1) & 3) + 1;
+ o = buf + o_count;
+ do {
+ *(char *)(--o) = '0' + (field_val % 10);
+ field_val /= 10;
+ } while (o > buf);
+ if (*buf == '0') {
+ *buf = ' ' + (i & 16);
+ }
+ }
+ }
+
+ OUTPUT:
+ ++p;
+ while (o_count && count && *o) {
+ *s++ = *o++;
+ --o_count;
+ --count;
+ }
+ goto LOOP;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_strptime
+
+/* TODO:
+ * 1) %l and %k are space-padded, so "%l" by itself fails while " %l" succeeds.
+ * Both work for glibc. So, should we always strip spaces?
+ * 2) %Z
+ */
+
+/* Notes:
+ * There are several differences between this strptime and glibc's strptime.
+ * 1) glibc strips leading space before numeric conversions.
+ * 2) glibc will read fields without whitespace in between. SUSv3 states
+ * that you must have whitespace between conversion operators. Besides,
+ * how do you know how long a number should be if there are leading 0s?
+ * 3) glibc attempts to compute some the struct tm fields based on the
+ * data retrieved; tm_wday in particular. I don't as I consider it
+ * another glibc attempt at mind-reading...
+ */
+
+#define NO_E_MOD 0x80
+#define NO_O_MOD 0x40
+
+#define ILLEGAL_SPEC 0x3f
+
+#define INT_SPEC 0x00 /* must be 0x00!! */
+#define STRING_SPEC 0x10 /* must be 0x10!! */
+#define CALC_SPEC 0x20
+#define STACKED_SPEC 0x30
+
+#define MASK_SPEC 0x30
+
+/* Warning: Assumes ASCII values! (as do lots of other things in the lib...) */
+static const unsigned char spec[] = {
+ /* A */ 0x02 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* B */ 0x01 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* C */ 0x08 | INT_SPEC | NO_O_MOD,
+ /* D */ 0x01 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* E */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* F */ 0x02 | STACKED_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* G */ 0x0f | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* H */ 0x06 | INT_SPEC | NO_E_MOD,
+ /* I */ 0x07 | INT_SPEC | NO_E_MOD,
+ /* J */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* K */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* L */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* M */ 0x04 | INT_SPEC | NO_E_MOD,
+ /* N */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* O */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* P */ 0x00 | STRING_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* Q */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* R */ 0x03 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* S */ 0x05 | INT_SPEC | NO_E_MOD,
+ /* T */ 0x04 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* U */ 0x0c | INT_SPEC | NO_E_MOD,
+ /* V */ 0x0d | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* W */ 0x0c | INT_SPEC | NO_E_MOD,
+ /* X */ 0x0a | STACKED_SPEC | NO_O_MOD,
+ /* Y */ 0x0a | INT_SPEC | NO_O_MOD,
+ /* Z */ 0x02 | CALC_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+
+ /* WARNING! This assumes orderings:
+ * AM,PM
+ * ABDAY_1-ABDAY-7,DAY_1-DAY_7
+ * ABMON_1-ABMON_12,MON_1-MON12
+ * Also, there are exactly 6 bytes between 'Z' and 'a'.
+ */
+#define STRINGS_NL_ITEM_START (26)
+ _NL_ITEM_INDEX(AM_STR), /* p (P) */
+ _NL_ITEM_INDEX(ABMON_1), /* B, b */
+ _NL_ITEM_INDEX(ABDAY_1), /* A, a */
+ 2,
+ 24,
+ 14,
+
+ /* a */ 0x02 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* b */ 0x01 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* c */ 0x08 | STACKED_SPEC | NO_O_MOD,
+ /* d */ 0x00 | INT_SPEC | NO_E_MOD,
+ /* e */ 0x00 | INT_SPEC | NO_E_MOD,
+ /* f */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* g */ 0x0e | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* h */ 0x01 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* i */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* j */ 0x01 | INT_SPEC | NO_E_MOD | NO_O_MOD,
+ /* k */ 0x06 | INT_SPEC | NO_E_MOD, /* glibc */
+ /* l */ 0x07 | INT_SPEC | NO_E_MOD, /* glibc */
+ /* m */ 0x02 | INT_SPEC | NO_E_MOD,
+ /* n */ 0x00 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* o */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* p */ 0x00 | STRING_SPEC | NO_E_MOD | NO_O_MOD,
+ /* q */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* r */ 0x0b | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* s */ 0x00 | CALC_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* t */ 0x00 | STACKED_SPEC | NO_E_MOD | NO_O_MOD,
+ /* u */ 0x0b | INT_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+ /* v */ ILLEGAL_SPEC | NO_E_MOD | NO_O_MOD,
+ /* w */ 0x03 | INT_SPEC | NO_E_MOD,
+ /* x */ 0x09 | STACKED_SPEC | NO_O_MOD,
+ /* y */ 0x09 | INT_SPEC,
+ /* z */ 0x01 | CALC_SPEC | NO_E_MOD | NO_O_MOD, /* glibc */
+
+#define INT_FIELD_START (26+6+26)
+ /* (field #) << 3 + lower bound (0|1) + correction 0:none, 2:-1, 4:-1900
+ * followed by upper bound prior to correction with 1=>366 and 2=>9999. */
+ /* d, e */ (3 << 3) + 1 + 0, 31,
+ /* j */ (7 << 3) + 1 + 2, /* 366 */ 1,
+ /* m */ (4 << 3) + 1 + 2, 12,
+ /* w */ (6 << 3) + 0 + 0, 6,
+ /* M */ (1 << 3) + 0 + 0, 59,
+ /* S */ 0 + 0 + 0, 60,
+ /* H (k) */ (2 << 3) + 0 + 0, 23,
+ /* I (l) */ (9 << 3) + 1 + 0, 12, /* goes with 8 -- am/pm */
+ /* C */ (10<< 3) + 0 + 0, 99,
+ /* y */ (11<< 3) + 0 + 0, 99,
+ /* Y */ (5 << 3) + 0 + 4, /* 9999 */ 2,
+ /* u */ (6 << 3) + 1 + 0, 7,
+ /* The following are processed and range-checked, but ignored otherwise. */
+ /* U, W */ (12<< 3) + 0 + 0, 53,
+ /* V */ (12<< 3) + 1 + 0, 53,
+ /* g */ (12<< 3) + 0 + 0, 99,
+ /* G */ (12<< 3) + 0 /*+ 4*/, /* 9999 */ 2, /* Note: -1 or 10000? */
+
+#define STACKED_STRINGS_START (INT_FIELD_START+32)
+ 5, 6, 14, 22, 27, /* 5 - offsets from offset-count to strings */
+ ' ', 0, /* 2 - %n or %t */
+ '%', 'm', '/', '%', 'd', '/', '%', 'y', 0, /* 9 - %D */
+ '%', 'Y', '-', '%', 'm', '-', '%', 'd', 0, /* 9 - %F (glibc extension) */
+ '%', 'H', ':', '%', 'M', 0, /* 6 - %R*/
+ '%', 'H', ':', '%', 'M', ':', '%', 'S', 0, /* 9 - %T */
+
+#define STACKED_STRINGS_NL_ITEM_START (STACKED_STRINGS_START + 40)
+ _NL_ITEM_INDEX(D_T_FMT), /* c */
+ _NL_ITEM_INDEX(D_FMT), /* x */
+ _NL_ITEM_INDEX(T_FMT), /* X */
+ _NL_ITEM_INDEX(T_FMT_AMPM), /* r */
+#ifdef ENABLE_ERA_CODE
+ _NL_ITEM_INDEX(ERA_D_T_FMT), /* Ec */
+ _NL_ITEM_INDEX(ERA_D_FMT), /* Ex */
+ _NL_ITEM_INDEX(ERA_T_FMT), /* EX */
+#endif
+};
+
+#define MAX_PUSH 4
+
+char *strptime(const char *__restrict buf, const char *__restrict format,
+ struct tm *__restrict tm)
+{
+ register const char *p;
+ char *o;
+ const char *stack[MAX_PUSH];
+ int i, j, lvl;
+ int fields[13];
+ unsigned char mod;
+ unsigned char code;
+
+ i = 0;
+ do {
+ fields[i] = INT_MIN;
+ } while (++i < 13);
+
+ lvl = 0;
+ p = format;
+
+ LOOP:
+ if (!*p) {
+ if (lvl == 0) { /* Done. */
+ if (fields[6] == 7) { /* Cleanup for %u here since just once. */
+ fields[6] = 0; /* Don't use mod in case unset. */
+ }
+
+ i = 0;
+ do { /* Store the values into tm. */
+ ((int *) tm)[i] = fields[i];
+ } while (++i < 8);
+
+ return (char *) buf; /* Success. */
+ }
+ p = stack[--lvl];
+ goto LOOP;
+ }
+
+ if ((*p == '%') && (*++p != '%')) {
+ mod = ILLEGAL_SPEC;
+ if ((*p == 'O') || (*p == 'E')) { /* Modifier? */
+ mod |= ((*p == 'O') ? NO_O_MOD : NO_E_MOD);
+ ++p;
+ }
+
+ if (!*p
+ || (((unsigned char)(((*p) | 0x20) - 'a')) >= 26)
+ || (((code = spec[(int)(*p - 'A')]) & mod) >= ILLEGAL_SPEC)
+ ) {
+ return NULL; /* Illegal spec. */
+ }
+
+ if ((code & MASK_SPEC) == STACKED_SPEC) {
+ if (lvl == MAX_PUSH) {
+ return NULL; /* Stack full so treat as illegal spec. */
+ }
+ stack[lvl++] = ++p;
+ if ((code &= 0xf) < 8) {
+ p = ((const char *) spec) + STACKED_STRINGS_START + code;
+ p += *((unsigned char *)p);
+ goto LOOP;
+ }
+
+ p = ((const char *) spec) + STACKED_STRINGS_NL_ITEM_START
+ + (code & 7);
+#ifdef ENABLE_ERA_CODE
+ if ((mod & NO_E_MOD) /* Actually, this means E modifier present. */
+ && (*(o = nl_langinfo(_NL_ITEM(LC_TIME,
+ (int)(((unsigned char *)p)[4]))
+ )))
+ ) {
+ p = o;
+ goto LOOP;
+ }
+#endif
+ p = nl_langinfo(_NL_ITEM(LC_TIME,
+ (int)(*((unsigned char *)p))));
+ goto LOOP;
+ }
+
+ ++p;
+
+ if ((code & MASK_SPEC) == STRING_SPEC) {
+ code &= 0xf;
+ j = spec[STRINGS_NL_ITEM_START + 3 + code];
+ i = _NL_ITEM(LC_TIME, spec[STRINGS_NL_ITEM_START + code]);
+ /* Go backwards to check full names before abreviations. */
+ do {
+ --j;
+ o = nl_langinfo(i+j);
+ if (!strncasecmp(buf,o,strlen(o)) && *o) { /* Found a match. */
+ do {
+ ++buf;
+ } while (*++o);
+ if (!code) { /* am/pm */
+ fields[8] = j * 12;
+ if (fields[9] >= 0) { /* We have a previous %I or %l. */
+ fields[2] = fields[9] + fields[8];
+ }
+ } else { /* day (4) or month (6) */
+ fields[2 + (code << 1)]
+ = j % (spec[STRINGS_NL_ITEM_START + 3 + code] >> 1);
+ }
+ goto LOOP;
+ }
+ } while (j);
+ return NULL; /* Failed to match. */
+ }
+
+ if ((code & MASK_SPEC) == CALC_SPEC) {
+ if ((code &= 0xf) < 1) { /* s or z*/
+ time_t t;
+
+ o = (char *) buf;
+ i = errno;
+ __set_errno(0);
+ if (!isspace(*buf)) { /* Signal an error if whitespace. */
+#ifdef TIME_T_IS_UNSIGNED
+ t = strtoul(buf, &o, 10);
+#else
+ t = strtol(buf, &o, 10);
+#endif
+ }
+ if ((o == buf) || errno) { /* Not a number or overflow. */
+ return NULL;
+ }
+ __set_errno(i); /* Restore errno. */
+ buf = o;
+
+ if (!code) { /* s */
+ localtime_r(&t, tm); /* TODO: check for failure? */
+ i = 0;
+ do { /* Now copy values from tm to fields. */
+ fields[i] = ((int *) tm)[i];
+ } while (++i < 8);
+ }
+ }
+ /* TODO: glibc treats %Z as a nop. For now, do the same. */
+ goto LOOP;
+ }
+
+ assert((code & MASK_SPEC) == INT_SPEC);
+ {
+ register const unsigned char *x;
+ code &= 0xf;
+ x = spec + INT_FIELD_START + (code << 1);
+ if ((j = x[1]) < 3) { /* upper bound (inclusive) */
+ j = ((j==1) ? 366 : 9999);
+ }
+ i = -1;
+ while (isdigit(*buf)) {
+ if (i < 0) {
+ i = 0;
+ }
+ if ((i = 10*i + (*buf - '0')) > j) { /* Overflow. */
+ return NULL;
+ }
+ ++buf;
+ }
+ if (i < (*x & 1)) { /* This catches no-digit case too. */
+ return NULL;
+ }
+ if (*x & 2) {
+ --i;
+ }
+ if (*x & 4) {
+ i -= 1900;
+ }
+
+ if (*x == (9 << 3) + 1 + 0) { /* %I or %l */
+ if (i == 12) {
+ i = 0;
+ }
+ if (fields[8] >= 0) { /* We have a previous %p or %P. */
+ fields[2] = i + fields[8];
+ }
+ }
+
+ fields[(*x) >> 3] = i;
+
+ if (((unsigned char)(*x - (10<< 3) + 0 + 0)) <= 8) { /* %C or %y */
+ if ((j = fields[10]) < 0) { /* No %C, so i must be %y data. */
+ if (i <= 68) { /* Map [0-68] to 2000+i */
+ i += 100;
+ }
+ } else { /* Have %C data, but what about %y? */
+ if ((i = fields[11]) < 0) { /* No %y data. */
+ i = 0; /* Treat %y val as 0 following glibc's example. */
+ }
+ i += 100*(j - 19);
+ }
+ fields[5] = i;
+ }
+ }
+ goto LOOP;
+ } else if (isspace(*p)) {
+ ++p;
+ while (isspace(*buf)) {
+ ++buf;
+ }
+ goto LOOP;
+ } else if (*buf++ == *p++) {
+ goto LOOP;
+ }
+ return NULL;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_time
+
+#ifndef __BCC__
+#error The uClibc version of time is in sysdeps/linux/common.
+#endif
+
+time_t time(register time_t *tloc)
+{
+ struct timeval tv;
+ register struct timeval *p = &tv;
+
+ gettimeofday(p, NULL); /* This should never fail... */
+
+ if (tloc) {
+ *tloc = p->tv_sec;
+ }
+
+ return p->tv_sec;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L_tzset
+
+static const char vals[] = {
+ 'T', 'Z', 0, /* 3 */
+ 'U', 'T', 'C', 0, /* 4 */
+ 25, 60, 60, 1, /* 4 */
+ '.', 1, /* M */
+ 5, '.', 1,
+ 6, 0, 0, /* Note: overloaded for non-M non-J case... */
+ 0, 1, 0, /* J */
+ ',', 'M', '4', '.', '1', '.', '0',
+ ',', 'M', '1', '0', '.', '5', '.', '0', 0
+};
+
+#define TZ vals
+#define UTC (vals + 3)
+#define RANGE (vals + 7)
+#define RULE (vals + 11 - 1)
+#define DEFAULT_RULES (vals + 22)
+
+/* Initialize to UTC. */
+int daylight = 0;
+long timezone = 0;
+char *tzname[2] = { (char *) UTC, (char *) (UTC-1) };
+
+rule_struct _time_tzinfo[2];
+
+static const char *getoffset(register const char *e, long *pn)
+{
+ register const char *s = RANGE-1;
+ long n;
+ int f;
+
+ n = 0;
+ f = -1;
+ do {
+ ++s;
+ if (isdigit(*e)) {
+ f = *e++ - '0';
+ }
+ if (isdigit(*e)) {
+ f = 10 * f + (*e++ - '0');
+ }
+ if (((unsigned int)f) >= *s) {
+ return NULL;
+ }
+ n = (*s) * n + f;
+ f = 0;
+ if (*e == ':') {
+ ++e;
+ --f;
+ }
+ } while (*s > 1);
+
+ *pn = n;
+ return e;
+}
+
+static const char *getnumber(register const char *e, int *pn)
+{
+#ifdef __BCC__
+ /* bcc can optimize the counter if it thinks it is a pointer... */
+ register const char *n = (const char *) 3;
+ int f;
+
+ f = 0;
+ while (n && isdigit(*e)) {
+ f = 10 * f + (*e++ - '0');
+ --n;
+ }
+
+ *pn = f;
+ return (n == (const char *) 3) ? NULL : e;
+#else /* __BCC__ */
+ int n, f;
+
+ n = 3;
+ f = 0;
+ while (n && isdigit(*e)) {
+ f = 10 * f + (*e++ - '0');
+ --n;
+ }
+
+ *pn = f;
+ return (n == 3) ? NULL : e;
+#endif /* __BCC__ */
+}
+
+void tzset(void)
+{
+ register const char *e;
+ register char *s;
+ long off;
+ short *p;
+ rule_struct new_rules[2];
+ int n, count, f;
+ char c;
+
+ if (!(e = getenv(TZ)) || !*e) { /* Not set or set to empty string. */
+ ILLEGAL: /* TODO: Clean up the following... */
+ s = _time_tzinfo[0].tzname;
+ *s = 'U';
+ *++s = 'T';
+ *++s = 'C';
+ *++s =
+ *_time_tzinfo[1].tzname = 0;
+ _time_tzinfo[0].gmt_offset = 0;
+ goto DONE;
+ }
+
+
+ if (*e == ':') { /* Ignore leading ':'. */
+ ++e;
+ }
+
+ count = 0;
+ new_rules[1].tzname[0] = 0;
+ LOOP:
+ /* Get std or dst name. */
+ c = 0;
+ if (*e == '<') {
+ ++e;
+ c = '>';
+ }
+
+ s = new_rules[count].tzname;
+ n = 0;
+ while (*e
+ && (isalpha(*e)
+ || (c && (isdigit(*e) || (*e == '+') || (*e == '-'))))
+ ) {
+ *s++ = *e++;
+ if (++n > TZNAME_MAX) {
+ goto ILLEGAL;
+ }
+ }
+ *s = 0;
+
+ if ((n < 3) /* Check for minimum length. */
+ || (c && (*e++ != c)) /* Match any quoting '<'. */
+ ) {
+ goto ILLEGAL;
+ }
+
+ /* Get offset */
+ s = (char *) e;
+ if ((*e != '-') && (*e != '+')) {
+ if (count && !isdigit(*e)) {
+ off -= 3600; /* Default to 1 hour ahead of std. */
+ goto SKIP_OFFSET;
+ }
+ --e;
+ }
+
+ ++e;
+ if (!(e = getoffset(e, &off))) {
+ goto ILLEGAL;
+ }
+
+ if (*s == '-') {
+ off = -off; /* Save off in case needed for dst default. */
+ }
+ SKIP_OFFSET:
+ new_rules[count].gmt_offset = off;
+
+ if (!count) {
+ if (*e) {
+ ++count;
+ goto LOOP;
+ }
+ } else { /* OK, we have dst, so get some rules. */
+ count = 0;
+ if (!*e) { /* No rules so default to US rules. */
+ e = DEFAULT_RULES;
+ }
+
+ do {
+ if (*e++ != ',') {
+ goto ILLEGAL;
+ }
+
+ n = 365;
+ s = (char *) RULE;
+ if ((c = *e++) == 'M') {
+ n = 12;
+ } else if (c == 'J') {
+ s += 8;
+ } else {
+ --e;
+ c = 0;
+ s += 6;
+ }
+
+ *(p = &new_rules[count].rule_type) = c;
+ if (c != 'M') {
+ p -= 2;
+ }
+
+ do {
+ ++s;
+ if (!(e = getnumber(e, &f))
+ || (((unsigned int)(f - s[1])) > n)
+ || (*s && (*e++ != *s))
+ ) {
+ goto ILLEGAL;
+ }
+ *--p = f;
+ } while ((n = *(s += 2)) > 0);
+
+ off = 2 * 60 * 60; /* Default to 2:00:00 */
+ if (*e == '/') {
+ ++e;
+ if (!(e = getoffset(e, &off))) {
+ goto ILLEGAL;
+ }
+ }
+ new_rules[count].dst_offset = off;
+ } while (++count < 2);
+
+ if (*e) {
+ goto ILLEGAL;
+ }
+ }
+
+ memcpy(_time_tzinfo, new_rules, sizeof(new_rules));
+ DONE:
+ tzname[0] = _time_tzinfo[0].tzname;
+ tzname[1] = _time_tzinfo[1].tzname;
+ daylight = !!new_rules[1].tzname[0];
+ timezone = new_rules[0].gmt_offset;
+}
+
+#endif
+/**********************************************************************/
+/* #ifdef L_utime */
+
+/* utime is a syscall in both linux and elks. */
+/* int utime(const char *path, const struct utimbuf *times) */
+
+/* #endif */
+/**********************************************************************/
+/* Non-SUSv3 */
+/**********************************************************************/
+#ifdef L_utimes
+
+#ifndef __BCC__
+#error The uClibc version of utimes is in sysdeps/linux/common.
+#endif
+
+#include <utime.h>
+#include <sys/time.h>
+
+int utimes(const char *filename, register const struct timeval *tvp)
+{
+ register struct utimbuf *p = NULL;
+ struct utimbuf utb;
+
+ if (tvp) {
+ p = &utb;
+ p->actime = tvp[0].tv_sec;
+ p->modtime = tvp[1].tv_sec;
+ }
+ return utime(filename, p);
+}
+
+#endif
+/**********************************************************************/
+#ifdef L__time_t2tm
+
+static const uint16_t vals[] = {
+ 60, 60, 24, 7 /* special */, 36524, 1461, 365, 0
+};
+
+static const unsigned char days[] = {
+ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, /* non-leap */
+ 29,
+};
+
+/* Notes:
+ * If time_t is 32 bits, then no overflow is possible.
+ * It time_t is > 32 bits, this needs to be adjusted to deal with overflow.
+ */
+
+/* Note: offset is the correction in _days_ to *timer! */
+
+struct tm *_time_t2tm(const time_t *__restrict timer,
+ int offset, struct tm *__restrict result)
+{
+ register int *p;
+ time_t t1, t, v;
+ int wday;
+
+ {
+ register const uint16_t *vp;
+ t = *timer;
+ p = (int *) result;
+ p[7] = 0;
+ vp = vals;
+ do {
+ if ((v = *vp) == 7) {
+ /* Overflow checking, assuming time_t is long int... */
+#if (LONG_MAX > INT_MAX) && (LONG_MAX > 2147483647L)
+#if (INT_MAX == 2147483647L) && (LONG_MAX == 9223372036854775807L)
+ /* Valid range for t is [-784223472856L, 784223421720L].
+ * Outside of this range, the tm_year field will overflow. */
+ if (((unsigned long)(t + offset- -784223472856L))
+ > (784223421720L - -784223472856L)
+ ) {
+ return NULL;
+ }
+#else
+#error overflow conditions unknown
+#endif
+#endif
+
+ /* We have days since the epoch, so caluclate the weekday. */
+#if defined(__BCC__) && TIME_T_IS_UNSIGNED
+ wday = (t + 4) % (*vp); /* t is unsigned */
+#else
+ wday = ((int)((t % (*vp)) + 11)) % ((int)(*vp)); /* help bcc */
+#endif
+ /* Set divisor to days in 400 years. Be kind to bcc... */
+ v = ((time_t)(vp[1])) << 2;
+ ++v;
+ /* Change to days since 1/1/1601 so that for 32 bit time_t
+ * values, we'll have t >= 0. This should be changed for
+ * archs with larger time_t types.
+ * Also, correct for offset since a multiple of 7. */
+
+ /* TODO: Does this still work on archs with time_t > 32 bits? */
+ t += (135140L - 366) + offset; /* 146097 - (365*30 + 7) -366 */
+ }
+#if defined(__BCC__) && TIME_T_IS_UNSIGNED
+ t -= ((t1 = t / v) * v);
+#else
+ if ((t -= ((t1 = t / v) * v)) < 0) {
+ t += v;
+ --t1;
+ }
+#endif
+
+ if ((*vp == 7) && (t == v-1)) {
+ --t; /* Correct for 400th year leap case */
+ ++p[4]; /* Stash the extra day... */
+ }
+
+#if defined(__BCC__) && 0
+ *p = t1;
+ if (v <= 60) {
+ *p = t;
+ t = t1;
+ }
+ ++p;
+#else
+ if (v <= 60) {
+ *p++ = t;
+ t = t1;
+ } else {
+ *p++ = t1;
+ }
+#endif
+ } while (*++vp);
+ }
+
+ if (p[-1] == 4) {
+ --p[-1];
+ t = 365;
+ }
+
+
+ *p += ((int) t); /* result[7] .. tm_yday */
+
+ p -= 2; /* at result[5] */
+
+#if (LONG_MAX > INT_MAX) && (LONG_MAX > 2147483647L)
+ /* Protect against overflow. TODO: Unecessary if int arith wraps? */
+ *p = ((((p[-2]<<2) + p[-1])*25 + p[0])<< 2) + (p[1] - 299); /* tm_year */
+#else
+ *p = ((((p[-2]<<2) + p[-1])*25 + p[0])<< 2) + p[1] - 299; /* tm_year */
+#endif
+
+ p[1] = wday; /* result[6] .. tm_wday */
+
+ {
+ register const unsigned char *d = days;
+
+ wday = 1900 + *p;
+ if (__isleap(wday)) {
+ d += 11;
+ }
+
+ wday = p[2] + 1; /* result[7] .. tm_yday */
+ *--p = 0; /* at result[4] .. tm_mon */
+ while (wday > *d) {
+ wday -= *d;
+ if (*d == 29) {
+ d -= 11; /* Backup to non-leap Feb. */
+ }
+ ++d;
+ ++*p; /* Increment tm_mon. */
+ }
+ p[-1] = wday; /* result[3] .. tm_mday */
+ }
+ /* TODO -- should this be 0? */
+ p[4] = 0; /* result[8] .. tm_isdst */
+
+ return result;
+}
+
+#endif
+/**********************************************************************/
+#ifdef L___time_tm
+
+struct tm __time_tm; /* Global shared by gmtime() and localtime(). */
+
+#endif
+/**********************************************************************/
+#ifdef L__time_mktime
+
+static const unsigned char vals[] = {
+ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, /* non-leap */
+ 29,
+};
+
+time_t _time_mktime(struct tm *timeptr, int store_on_success)
+{
+#ifdef __BCC__
+ long days, secs;
+#else
+ long long secs;
+#endif
+ time_t t;
+ struct tm x;
+ /* 0:sec 1:min 2:hour 3:mday 4:mon 5:year 6:wday 7:yday 8:isdst */
+ register int *p = (int *) &x;
+ register const unsigned char *s;
+ int d;
+
+ tzset();
+
+ memcpy(p, timeptr, sizeof(struct tm));
+
+ d = 400;
+ p[5] = (p[5] - ((p[6] = p[5]/d) * d)) + (p[7] = p[4]/12);
+ if ((p[4] -= 12 * p[7]) < 0) {
+ p[4] += 12;
+ --p[5];
+ }
+
+ s = vals;
+ d = (p[5] += 1900); /* Correct year. Now between 1900 and 2300. */
+ if (__isleap(d)) {
+ s += 11;
+ }
+
+ p[7] = 0;
+ d = p[4];
+ while (d) {
+ p[7] += *s;
+ if (*s == 29) {
+ s -= 11; /* Backup to non-leap Feb. */
+ }
+ ++s;
+ --d;
+ }
+
+#ifdef __BCC__
+ /* TODO - check */
+ d = p[5] - 1;
+ days = -719163L + d*365 + ((d/4) - (d/100) + (d/400) + p[3] + p[7]);
+ secs = p[0] + 60*( p[1] + 60*((long)(p[2])) );
+
+ if (secs < 0) {
+ secs += 120009600L;
+ days -= 1389;
+ }
+ if ( ((unsigned long)(days + secs/86400L)) > 49710L) {
+ return -1;
+ }
+ secs += (days * 86400L);
+#else
+ d = p[5] - 1;
+ d = -719163L + d*365 + (d/4) - (d/100) + (d/400);
+ secs = p[0]
+ + _time_tzinfo[timeptr->tm_isdst > 0].gmt_offset
+ + 60*( p[1]
+ + 60*(p[2]
+ + 24*(((146073L * ((long long)(p[6])) + d)
+ + p[3]) + p[7])));
+ if (((unsigned long long)(secs - LONG_MIN))
+ > (((unsigned long long)LONG_MAX) - LONG_MIN)
+ ) {
+ return -1;
+ }
+#endif
+
+ t = secs;
+
+ localtime_r(&t, (struct tm *)p);
+
+ if (store_on_success) {
+ memcpy(timeptr, p, sizeof(struct tm));
+ }
+
+ return t;
+}
+
+#endif
+/**********************************************************************/
diff --git a/libc/misc/time/tm_conv.c b/libc/misc/time/tm_conv.c
deleted file mode 100644
index f73c96f07..000000000
--- a/libc/misc/time/tm_conv.c
+++ /dev/null
@@ -1,105 +0,0 @@
-
-/* This is adapted from glibc */
-/* Copyright (C) 1991, 1993 Free Software Foundation, Inc */
-
-#define SECS_PER_HOUR 3600L
-#define SECS_PER_DAY 86400L
-
-#include <features.h>
-#include <time.h>
-#include <sys/types.h>
-
-/* This structure contains all the information about a
- timezone given in the POSIX standard TZ envariable. */
-typedef struct
-{
- const char *name;
-
- /* When to change. */
- enum { J0, J1, M } type; /* Interpretation of: */
- unsigned short int m, n, d; /* Month, week, day. */
- unsigned int secs; /* Time of day. */
-
- long int offset; /* Seconds east of GMT (west if < 0). */
-
- /* We cache the computed time of change for a
- given year so we don't have to recompute it. */
- time_t change; /* When to change to this zone. */
- int computed_for; /* Year above is computed for. */
-} tz_rule;
-
-/* tz_rules[0] is standard, tz_rules[1] is daylight. */
-static tz_rule tz_rules[2];
-
-/* Warning -- this function is a stub andd always does UTC
- * no matter what it is given */
-void tzset (void)
-{
- tz_rules[0].name = tz_rules[1].name = "UTC";
- tz_rules[0].type = tz_rules[1].type = J0;
- tz_rules[0].m = tz_rules[0].n = tz_rules[0].d = 0;
- tz_rules[1].m = tz_rules[1].n = tz_rules[1].d = 0;
- tz_rules[0].secs = tz_rules[1].secs = 0;
- tz_rules[0].offset = tz_rules[1].offset = 0L;
- tz_rules[0].change = tz_rules[1].change = (time_t) -1;
- tz_rules[0].computed_for = tz_rules[1].computed_for = 0;
-}
-
-
-static const unsigned short int __mon_lengths[2][12] = {
- /* Normal years. */
- {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
- /* Leap years. */
- {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
-};
-
-void __tm_conv(struct tm *tmbuf, time_t *t, time_t offset)
-{
- int isdst;
- long days, rem;
- register int y;
- register const unsigned short int *ip;
-
- timezone = -offset;
-
- days = *t / SECS_PER_DAY;
- rem = *t % SECS_PER_DAY;
- rem += offset;
- while (rem < 0) {
- rem += SECS_PER_DAY;
- --days;
- }
- while (rem >= SECS_PER_DAY) {
- rem -= SECS_PER_DAY;
- ++days;
- }
- tmbuf->tm_hour = rem / SECS_PER_HOUR;
- rem %= SECS_PER_HOUR;
- tmbuf->tm_min = rem / 60;
- tmbuf->tm_sec = rem % 60;
- /* January 1, 1970 was a Thursday. */
- tmbuf->tm_wday = (4 + days) % 7;
- if (tmbuf->tm_wday < 0)
- tmbuf->tm_wday += 7;
- y = 1970;
- while (days >= (rem = __isleap(y) ? 366 : 365)) {
- ++y;
- days -= rem;
- }
- while (days < 0) {
- --y;
- days += __isleap(y) ? 366 : 365;
- }
- tmbuf->tm_year = y - 1900;
- tmbuf->tm_yday = days;
- ip = __mon_lengths[__isleap(y)];
- for (y = 0; days >= ip[y]; ++y)
- days -= ip[y];
- tmbuf->tm_mon = y;
- tmbuf->tm_mday = days + 1;
- isdst = (*t >= tz_rules[0].change && *t < tz_rules[1].change);
- tmbuf->tm_isdst = isdst;
- tmbuf->tm_zone = tzname[isdst];
-
-}
-
diff --git a/libc/misc/time/utimes.c b/libc/misc/time/utimes.c
deleted file mode 100644
index 86dff6bea..000000000
--- a/libc/misc/time/utimes.c
+++ /dev/null
@@ -1,17 +0,0 @@
-#include <stdlib.h>
-#include <utime.h>
-#include <sys/time.h>
-
-int utimes (const char *file, const struct timeval tvp[2])
-{
- struct utimbuf buf, *times;
-
- if (tvp) {
- times = &buf;
- times->actime = tvp[0].tv_sec;
- times->modtime = tvp[1].tv_sec;
- }
- else
- times = NULL;
- return utime(file, times);
-}
diff --git a/libc/stdlib/setenv.c b/libc/stdlib/setenv.c
index 02959ab95..ef5d84d81 100644
--- a/libc/stdlib/setenv.c
+++ b/libc/stdlib/setenv.c
@@ -19,6 +19,7 @@
modified for uClibc by Erik Andersen <andersen@codepoet.org>
*/
+#define _GNU_SOURCE
#include <features.h>
#include <errno.h>
#include <stdlib.h>
@@ -56,7 +57,7 @@ int __add_to_environ (const char *name, const char *value,
const size_t namelen = strlen (name);
const size_t vallen = value != NULL ? strlen (value) + 1 : 0;
- pthread_mutex_lock(&envlock);
+ LOCK;
/* We have to get the pointer now that we have the lock and not earlier
since another thread might have created a new environment. */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 18:16:49 +0000