--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/openenvcore/libc/src/stdtime/localtime.c Fri Jun 04 16:20:51 2010 +0100
@@ -0,0 +1,2165 @@
+/*
+* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+#include <sys/cdefs.h>
+#ifndef lint
+#ifndef NOID
+static char elsieid[] __unused = "@(#)localtime.c 7.78";
+#endif /* !defined NOID */
+#endif /* !defined lint */
+__FBSDID("$FreeBSD: src/lib/libc/stdtime/localtime.c,v 1.40 2004/08/24 00:15:37 peter Exp $");
+
+/*
+** Leap second handling from Bradley White (bww@k.gp.cs.cmu.edu).
+** POSIX-style TZ environment variable handling from Guy Harris
+** (guy@auspex.com).
+*/
+#include <time.h>
+
+/*LINTLIBRARY*/
+#include <unistd.h>
+#include "namespace.h"
+#include <sys/types.h>
+#include <pthread.h>
+#include "private.h"
+#include "un-namespace.h"
+#include "tzfile.h"
+#include <fcntl.h>
+#include <sys/stat.h>
+#include "libc_private.h"
+#include "common_def.h"
+#include <wchar.h>
+#include "timefuncs.h"
+
+#if (defined(__SYMBIAN32__) && (defined(__WINSCW__) || defined(__WINS__)))
+#include "libc_wsd_defs.h"
+#endif
+
+#define _MUTEX_LOCK(x) if (__isthreaded) _pthread_mutex_lock(x)
+#define _MUTEX_UNLOCK(x) if (__isthreaded) _pthread_mutex_unlock(x)
+
+/*
+** SunOS 4.1.1 headers lack O_BINARY.
+*/
+
+#ifdef O_BINARY
+#define OPEN_MODE (O_RDONLY | O_BINARY)
+#endif /* defined O_BINARY */
+#ifndef O_BINARY
+#define OPEN_MODE O_RDONLY
+#endif /* !defined O_BINARY */
+
+#ifndef WILDABBR
+/*
+** Someone might make incorrect use of a time zone abbreviation:
+** 1. They might reference tzname[0] before calling tzset (explicitly
+** or implicitly).
+** 2. They might reference tzname[1] before calling tzset (explicitly
+** or implicitly).
+** 3. They might reference tzname[1] after setting to a time zone
+** in which Daylight Saving Time is never observed.
+** 4. They might reference tzname[0] after setting to a time zone
+** in which Standard Time is never observed.
+** 5. They might reference tm.TM_ZONE after calling offtime.
+** What's best to do in the above cases is open to debate;
+** for now, we just set things up so that in any of the five cases
+** WILDABBR is used. Another possibility: initialize tzname[0] to the
+** string "tzname[0] used before set", and similarly for the other cases.
+** And another: initialize tzname[0] to "ERA", with an explanation in the
+** manual page of what this "time zone abbreviation" means (doing this so
+** that tzname[0] has the "normal" length of three characters).
+*/
+#define WILDABBR " "
+#endif /* !defined WILDABBR */
+
+#ifdef __SYMBIAN32__
+extern int GetStdOffset(void);
+extern int GetIsDst(void);
+#endif //__SYMBIAN32__
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+static char wildabbr[] = "WILDABBR";
+#else //EMULATOR
+
+GET_STATIC_ARRAY_FROM_TLS(wildabbr, char)
+#define wildabbr (GET_WSD_VAR_NAME(wildabbr, s)())
+#endif //EMULATOR
+#else
+static char wildabbr[] = "WILDABBR";
+#endif //__SYMBIAN32__
+
+/*
+ * In June 2004 it was decided UTC was a more appropriate default time
+ * zone than GMT.
+ */
+
+#ifdef __SYMBIAN32__
+#if !(defined(EMULATOR))
+static const char gmt[] = "UTC";
+#endif //EMULATOR
+#else
+static const char gmt[] = "UTC";
+#endif //__SYMBIAN32__
+
+/*
+** The DST rules to use if TZ has no rules and we can't load TZDEFRULES.
+** We default to US rules as of 1999-08-17.
+** POSIX 1003.1 section 8.1.1 says that the default DST rules are
+** implementation dependent; for historical reasons, US rules are a
+** common default.
+*/
+#ifndef TZDEFRULESTRING
+#define TZDEFRULESTRING ",M4.1.0,M10.5.0"
+#endif /* !defined TZDEFDST */
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+struct ttinfo { /* time type information */
+ long tt_gmtoff; /* UTC offset in seconds */
+ int tt_isdst; /* used to set tm_isdst */
+ int tt_abbrind; /* abbreviation list index */
+ int tt_ttisstd; /* TRUE if transition is std time */
+ int tt_ttisgmt; /* TRUE if transition is UTC */
+};
+
+struct lsinfo { /* leap second information */
+ time_t ls_trans; /* transition time */
+ long ls_corr; /* correction to apply */
+};
+#endif //EMULATOR
+#else
+struct ttinfo { /* time type information */
+ long tt_gmtoff; /* UTC offset in seconds */
+ int tt_isdst; /* used to set tm_isdst */
+ int tt_abbrind; /* abbreviation list index */
+ int tt_ttisstd; /* TRUE if transition is std time */
+ int tt_ttisgmt; /* TRUE if transition is UTC */
+};
+
+struct lsinfo { /* leap second information */
+ time_t ls_trans; /* transition time */
+ long ls_corr; /* correction to apply */
+};
+#endif //__SYMBIAN32__
+
+#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b))
+
+#ifdef TZNAME_MAX
+#define MY_TZNAME_MAX TZNAME_MAX
+#endif /* defined TZNAME_MAX */
+#ifndef TZNAME_MAX
+#define MY_TZNAME_MAX 255
+#endif /* !defined TZNAME_MAX */
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+struct state {
+ int leapcnt;
+ int timecnt;
+ int typecnt;
+ int charcnt;
+ time_t ats[TZ_MAX_TIMES];
+ unsigned char types[TZ_MAX_TIMES];
+ struct ttinfo ttis[TZ_MAX_TYPES];
+ char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt),
+ (2 * (MY_TZNAME_MAX + 1)))];
+ struct lsinfo lsis[TZ_MAX_LEAPS];
+};
+#endif //EMULATOR
+#else
+struct state {
+ int leapcnt;
+ int timecnt;
+ int typecnt;
+ int charcnt;
+ time_t ats[TZ_MAX_TIMES];
+ unsigned char types[TZ_MAX_TIMES];
+ struct ttinfo ttis[TZ_MAX_TYPES];
+ char chars[BIGGEST(BIGGEST(TZ_MAX_CHARS + 1, sizeof gmt),
+ (2 * (MY_TZNAME_MAX + 1)))];
+ struct lsinfo lsis[TZ_MAX_LEAPS];
+};
+#endif //__SYMBIAN32__
+
+struct rule {
+ int r_type; /* type of rule--see below */
+ int r_day; /* day number of rule */
+ int r_week; /* week number of rule */
+ int r_mon; /* month number of rule */
+ long r_time; /* transition time of rule */
+};
+
+#define JULIAN_DAY 0 /* Jn - Julian day */
+#define DAY_OF_YEAR 1 /* n - day of year */
+#define MONTH_NTH_DAY_OF_WEEK 2 /* Mm.n.d - month, week, day of week */
+
+/*
+** Prototypes for static functions.
+*/
+
+#ifndef __SYMBIAN32__
+static long detzcode(const char * codep);
+#endif //__SYMBIAN32__
+static const char * getzname(const char * strp);
+static const char * getnum(const char * strp, int * nump, int min,
+ int max);
+static const char * getsecs(const char * strp, long * secsp);
+static const char * getoffset(const char * strp, long * offsetp);
+static const char * getrule(const char * strp, struct rule * rulep);
+static void gmtload(struct state * sp);
+static void gmtsub(const time_t * timep, long offset,
+ struct tm * tmp);
+static void localsub(const time_t * timep, long offset,
+ struct tm * tmp);
+static int increment_overflow(int * number, int delta);
+static int normalize_overflow(int * tensptr, int * unitsptr,
+ int base);
+static void settzname(void);
+static time_t time1(struct tm * tmp,
+ void(*funcp) (const time_t *,
+ long, struct tm *),
+ long offset);
+static time_t time2(struct tm *tmp,
+ void(*funcp) (const time_t *,
+ long, struct tm*),
+ long offset, int * okayp);
+static time_t time2sub(struct tm *tmp,
+ void(*funcp) (const time_t *,
+ long, struct tm*),
+ long offset, int * okayp, int do_norm_secs);
+static void timesub(const time_t * timep, long offset,
+ const struct state * sp, struct tm * tmp);
+static int tmcomp(const struct tm * atmp,
+ const struct tm * btmp);
+static time_t transtime(time_t janfirst, int year,
+ const struct rule * rulep, long offset);
+static int tzload(const char * name, struct state * sp);
+static int tzparse(const char * name, struct state * sp,
+ int lastditch);
+
+#ifdef ALL_STATE
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+static struct state * lclptr;
+static struct state * gmtptr;
+#else //EMULATOR
+
+GET_STATIC_VAR_FROM_TLS(lclptr, state *)
+GET_STATIC_VAR_FROM_TLS(gmtptr, state *)
+
+#define lclptr (*GET_WSD_VAR_NAME(lclptr, s)())
+#define gmtptr (*GET_WSD_VAR_NAME(gmtptr, s)())
+#endif //EMULATOR
+#else //__SYMBIAN32__
+static struct state * lclptr;
+static struct state * gmtptr;
+#endif //__SYMBIAN32__
+
+#endif /* defined ALL_STATE */
+
+#ifndef ALL_STATE
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+static struct state lclmem;
+static struct state gmtmem;
+#else //EMULATOR
+
+GET_STATIC_VAR_FROM_TLS(lclmem, struct state)
+GET_STATIC_VAR_FROM_TLS(gmtmem, struct state)
+#define lclmem (*GET_WSD_VAR_NAME(lclmem, s)())
+#define gmtmem (*GET_WSD_VAR_NAME(gmtmem, s)())
+#endif //EMULATOR
+#else //__SYMBIAN32__
+static struct state lclmem;
+static struct state gmtmem;
+#endif //__SYMBIAN32__
+
+#define lclptr (&lclmem)
+#define gmtptr (&gmtmem)
+#endif /* State Farm */
+
+#ifndef TZ_STRLEN_MAX
+#define TZ_STRLEN_MAX 255
+#endif /* !defined TZ_STRLEN_MAX */
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+static char lcl_TZname[TZ_STRLEN_MAX + 1];
+static int lcl_is_set;
+static int gmt_is_set;
+static pthread_mutex_t lcl_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t gmt_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+char **_tzname = NULL;
+#else //EMULATOR
+
+GET_STATIC_ARRAY_FROM_TLS(lcl_TZname, char)
+GET_STATIC_VAR_FROM_TLS(lcl_is_set, int)
+GET_STATIC_VAR_FROM_TLS(gmt_is_set, int)
+GET_STATIC_VAR_FROM_TLS(lcl_mutex, pthread_mutex_t)
+GET_STATIC_VAR_FROM_TLS(gmt_mutex, pthread_mutex_t)
+
+
+#define lcl_TZname (GET_WSD_VAR_NAME(lcl_TZname, s)())
+#define lcl_is_set (*GET_WSD_VAR_NAME(lcl_is_set, s)())
+#define gmt_is_set (*GET_WSD_VAR_NAME(gmt_is_set, s)())
+#define lcl_mutex (*GET_WSD_VAR_NAME(lcl_mutex, s)())
+#define gmt_mutex (*GET_WSD_VAR_NAME(gmt_mutex, s)())
+
+#endif //EMULATOR
+#else //__SYMBIAN32__
+
+static char lcl_TZname[TZ_STRLEN_MAX + 1];
+static int lcl_is_set;
+static int gmt_is_set;
+static pthread_mutex_t lcl_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t gmt_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+char * tzname[2] = {
+ wildabbr,
+ wildabbr
+};
+#endif //__SYMBIAN32__
+
+/*
+** Section 4.12.3 of X3.159-1989 requires that
+** Except for the strftime function, these functions [asctime,
+** ctime, gmtime, localtime] return values in one of two static
+** objects: a broken-down time structure and an array of char.
+** Thanks to Paul Eggert (eggert@twinsun.com) for noting this.
+*/
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+struct tm stm;
+#else //EMULATOR
+
+GET_GLOBAL_VAR_FROM_TLS(stm, struct tm)
+#define stm (*GET_WSD_VAR_NAME(stm, g)())
+#endif //EMULATOR
+#else //__SYMBIAN32__
+static struct tm tm;
+#endif //__SYMBIAN32__
+
+#ifdef USG_COMPAT
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+time_t timezone = 0;
+int daylight = 0;
+#else //EMULATOR
+
+GET_GLOBAL_VAR_FROM_TLS(timezone, time_t)
+GET_GLOBAL_VAR_FROM_TLS(daylight, int)
+
+#define timezone (*GET_WSD_VAR_NAME(timezone, g)())
+#define daylight (*GET_WSD_VAR_NAME(daylight, g)())
+#endif //EMULATOR
+#else //__SYMBIAN32__
+time_t timezone = 0;
+int daylight = 0;
+#endif //__SYMBIAN32__
+
+#endif /* defined USG_COMPAT */
+
+#ifdef ALTZONE
+
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+
+time_t altzone = 0;
+#else //EMULATOR
+
+GET_GLOBAL_VAR_FROM_TLS(altzone, time_t)
+#define altzone (*GET_WSD_VAR_NAME(altzone, g)())
+#endif //EMULATOR
+#else //__SYMBIAN32__
+time_t altzone = 0;
+#endif //__SYMBIAN32__
+
+#endif /* defined ALTZONE */
+
+#ifdef __SYMBIAN32__
+#ifdef EMULATOR
+
+GET_STATIC_VAR_FROM_TLS(localtime_key, pthread_key_t)
+GET_STATIC_VAR_FROM_TLS(localtime_mutex, pthread_mutex_t)
+GET_STATIC_VAR_FROM_TLS(gmtime_key, pthread_key_t)
+GET_STATIC_VAR_FROM_TLS(gmtime_mutex, pthread_mutex_t)
+
+#define localtime_mutex (*GET_WSD_VAR_NAME(localtime_mutex, s)())
+#define localtime_key (*GET_WSD_VAR_NAME(localtime_key, s)())
+#define gmtime_mutex (*GET_WSD_VAR_NAME(gmtime_mutex, s)())
+#define gmtime_key (*GET_WSD_VAR_NAME(gmtime_key, s)())
+
+#endif //EMULATOR
+#endif //__SYMBIAN32__
+
+#if !defined(__SYMBIAN32__) || defined(__SYMBIAN_COMPILE_UNUSED__)
+static long
+detzcode(codep)
+const char * const codep;
+{
+ long result;
+ int i;
+
+ result = (codep[0] & 0x80) ? ~0L : 0L;
+ for (i = 0; i < 4; ++i)
+ result = (result << 8) | (codep[i] & 0xff);
+ return result;
+}
+#endif //if defined(__SYMBIAN32__) || defined (__SYMBIAN_COMPILE_UNUSED__)
+
+static void
+settzname(void)
+{
+ struct state * sp = lclptr;
+ int i;
+
+ tzname[0] = wildabbr;
+ tzname[1] = wildabbr;
+#ifdef USG_COMPAT
+ daylight = 0;
+ timezone = 0;
+#endif /* defined USG_COMPAT */
+#ifdef ALTZONE
+ altzone = 0;
+#endif /* defined ALTZONE */
+#ifdef ALL_STATE
+ if (sp == NULL) {
+ tzname[0] = tzname[1] = gmt;
+ return;
+ }
+#endif /* defined ALL_STATE */
+ for (i = 0; i < sp->typecnt; ++i) {
+ const struct ttinfo * const ttisp = &sp->ttis[i];
+
+ tzname[ttisp->tt_isdst] =
+ &sp->chars[ttisp->tt_abbrind];
+#ifdef USG_COMPAT
+ if (ttisp->tt_isdst)
+ daylight = 1;
+ if (i == 0 || !ttisp->tt_isdst)
+ timezone = -(ttisp->tt_gmtoff);
+#endif /* defined USG_COMPAT */
+#ifdef ALTZONE
+ if (i == 0 || ttisp->tt_isdst)
+ altzone = -(ttisp->tt_gmtoff);
+#endif /* defined ALTZONE */
+ }
+ /*
+ ** And to get the latest zone names into tzname. . .
+ */
+ for (i = 0; i < sp->timecnt; ++i) {
+ const struct ttinfo * const ttisp =
+ &sp->ttis[
+ sp->types[i]];
+
+ tzname[ttisp->tt_isdst] =
+ &sp->chars[ttisp->tt_abbrind];
+ }
+}
+
+static int
+tzload(name, sp)
+const char * name;
+struct state * const sp;
+{
+#ifndef __SYMBIAN32__
+ const char * p;
+ int i;
+ int fid;
+#else//__SYMBIAN32__
+ if(sp) { }//dummy implementation
+#endif//__SYMBIAN32__
+ /* XXX The following is from OpenBSD, and I'm not sure it is correct */
+ if (name != NULL && issetugid() != 0)
+ if ((name[0] == ':' && name[1] == '/') ||
+ name[0] == '/' || strchr(name, '.'))
+ name = NULL;
+ if (name == NULL && (name = TZDEFAULT) == NULL)
+ return -1;
+
+ #ifdef __SYMBIAN32__
+ return -1; //We are doing this for the simple reason that these files
+ //do not exist in the Symbian environment and we really dont
+ //need to try accessing them
+ #else //__SYMBIAN32__
+
+ {
+ int doaccess;
+ struct stat stab;
+ /*
+ ** Section 4.9.1 of the C standard says that
+ ** "FILENAME_MAX expands to an integral constant expression
+ ** that is the size needed for an array of char large enough
+ ** to hold the longest file name string that the implementation
+ ** guarantees can be opened."
+ */
+ char fullname[FILENAME_MAX + 1];
+
+ if (name[0] == ':')
+ ++name;
+ doaccess = name[0] == '/';
+ if (!doaccess) {
+ if ((p = TZDIR) == NULL)
+ return -1;
+ if ((strlen(p) + 1 + strlen(name) + 1) >= sizeof fullname)
+ return -1;
+ (void) strcpy(fullname, p);
+ (void) strcat(fullname, "/");
+ (void) strcat(fullname, name);
+ /*
+ ** Set doaccess if '.' (as in "../") shows up in name.
+ */
+ if (strchr(name, '.') != NULL)
+ doaccess = TRUE;
+ name = fullname;
+ }
+ if (doaccess && access(name, R_OK) != 0)
+ return -1;
+ if ((fid = _open(name, OPEN_MODE)) == -1)
+ return -1;
+ if ((_fstat(fid, &stab) < 0) || !S_ISREG(stab.st_mode)) {
+ _close(fid);
+ return -1;
+ }
+ }
+ {
+ struct tzhead * tzhp;
+ union {
+ struct tzhead tzhead;
+ char buf[sizeof *sp + sizeof *tzhp];
+ } u;
+ int ttisstdcnt;
+ int ttisgmtcnt;
+
+ i = _read(fid, u.buf, sizeof u.buf);
+ if (_close(fid) != 0)
+ return -1;
+ ttisstdcnt = (int) detzcode(u.tzhead.tzh_ttisstdcnt);
+ ttisgmtcnt = (int) detzcode(u.tzhead.tzh_ttisgmtcnt);
+ sp->leapcnt = (int) detzcode(u.tzhead.tzh_leapcnt);
+ sp->timecnt = (int) detzcode(u.tzhead.tzh_timecnt);
+ sp->typecnt = (int) detzcode(u.tzhead.tzh_typecnt);
+ sp->charcnt = (int) detzcode(u.tzhead.tzh_charcnt);
+ p = u.tzhead.tzh_charcnt + sizeof u.tzhead.tzh_charcnt;
+ if (sp->leapcnt < 0 || sp->leapcnt > TZ_MAX_LEAPS ||
+ sp->typecnt <= 0 || sp->typecnt > TZ_MAX_TYPES ||
+ sp->timecnt < 0 || sp->timecnt > TZ_MAX_TIMES ||
+ sp->charcnt < 0 || sp->charcnt > TZ_MAX_CHARS ||
+ (ttisstdcnt != sp->typecnt && ttisstdcnt != 0) ||
+ (ttisgmtcnt != sp->typecnt && ttisgmtcnt != 0))
+ return -1;
+ if (i - (p - u.buf) < sp->timecnt * 4 + /* ats */
+ sp->timecnt + /* types */
+ sp->typecnt * (4 + 2) + /* ttinfos */
+ sp->charcnt + /* chars */
+ sp->leapcnt * (4 + 4) + /* lsinfos */
+ ttisstdcnt + /* ttisstds */
+ ttisgmtcnt) /* ttisgmts */
+ return -1;
+ for (i = 0; i < sp->timecnt; ++i) {
+ sp->ats[i] = detzcode(p);
+ p += 4;
+ }
+ for (i = 0; i < sp->timecnt; ++i) {
+ sp->types[i] = (unsigned char) *p++;
+ if (sp->types[i] >= sp->typecnt)
+ return -1;
+ }
+ for (i = 0; i < sp->typecnt; ++i) {
+ struct ttinfo * ttisp;
+
+ ttisp = &sp->ttis[i];
+ ttisp->tt_gmtoff = detzcode(p);
+ p += 4;
+ ttisp->tt_isdst = (unsigned char) *p++;
+ if (ttisp->tt_isdst != 0 && ttisp->tt_isdst != 1)
+ return -1;
+ ttisp->tt_abbrind = (unsigned char) *p++;
+ if (ttisp->tt_abbrind < 0 ||
+ ttisp->tt_abbrind > sp->charcnt)
+ return -1;
+ }
+ for (i = 0; i < sp->charcnt; ++i)
+ sp->chars[i] = *p++;
+ sp->chars[i] = '\0'; /* ensure '\0' at end */
+ for (i = 0; i < sp->leapcnt; ++i) {
+ struct lsinfo * lsisp;
+
+ lsisp = &sp->lsis[i];
+ lsisp->ls_trans = detzcode(p);
+ p += 4;
+ lsisp->ls_corr = detzcode(p);
+ p += 4;
+ }
+ for (i = 0; i < sp->typecnt; ++i) {
+ struct ttinfo * ttisp;
+
+ ttisp = &sp->ttis[i];
+ if (ttisstdcnt == 0)
+ ttisp->tt_ttisstd = FALSE;
+ else {
+ ttisp->tt_ttisstd = *p++;
+ if (ttisp->tt_ttisstd != TRUE &&
+ ttisp->tt_ttisstd != FALSE)
+ return -1;
+ }
+ }
+ for (i = 0; i < sp->typecnt; ++i) {
+ struct ttinfo * ttisp;
+
+ ttisp = &sp->ttis[i];
+ if (ttisgmtcnt == 0)
+ ttisp->tt_ttisgmt = FALSE;
+ else {
+ ttisp->tt_ttisgmt = *p++;
+ if (ttisp->tt_ttisgmt != TRUE &&
+ ttisp->tt_ttisgmt != FALSE)
+ return -1;
+ }
+ }
+ }
+#endif //__SYMBIAN32__
+ return 0;
+}
+
+static const int mon_lengths[2][MONSPERYEAR] = {
+ { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
+ { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
+};
+
+static const int year_lengths[2] = {
+ DAYSPERNYEAR, DAYSPERLYEAR
+};
+
+/*
+** Given a pointer into a time zone string, scan until a character that is not
+** a valid character in a zone name is found. Return a pointer to that
+** character.
+*/
+
+static const char *
+getzname(strp)
+const char * strp;
+{
+ char c;
+
+ while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' &&
+ c != '+')
+ ++strp;
+ return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a number from that string.
+** Check that the number is within a specified range; if it is not, return
+** NULL.
+** Otherwise, return a pointer to the first character not part of the number.
+*/
+
+static const char *
+getnum(strp, nump, min, max)
+const char * strp;
+int * const nump;
+const int min;
+const int max;
+{
+ char c;
+ int num;
+
+ if (strp == NULL || !is_digit(c = *strp))
+ return NULL;
+ num = 0;
+ do {
+ num = num * 10 + (c - '0');
+ if (num > max)
+ return NULL; /* illegal value */
+ c = *++strp;
+ } while (is_digit(c));
+ if (num < min)
+ return NULL; /* illegal value */
+ *nump = num;
+ return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a number of seconds,
+** in hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the number
+** of seconds.
+*/
+
+static const char *
+getsecs(strp, secsp)
+const char * strp;
+long * const secsp;
+{
+ int num;
+
+ /*
+ ** `HOURSPERDAY * DAYSPERWEEK - 1' allows quasi-Posix rules like
+ ** "M10.4.6/26", which does not conform to Posix,
+ ** but which specifies the equivalent of
+ ** ``02:00 on the first Sunday on or after 23 Oct''.
+ */
+ strp = getnum(strp, &num, 0, HOURSPERDAY * DAYSPERWEEK - 1);
+ if (strp == NULL)
+ return NULL;
+ *secsp = num * (long) SECSPERHOUR;
+ if (*strp == ':') {
+ ++strp;
+ strp = getnum(strp, &num, 0, MINSPERHOUR - 1);
+ if (strp == NULL)
+ return NULL;
+ *secsp += num * SECSPERMIN;
+ if (*strp == ':') {
+ ++strp;
+ /* `SECSPERMIN' allows for leap seconds. */
+ strp = getnum(strp, &num, 0, SECSPERMIN);
+ if (strp == NULL)
+ return NULL;
+ *secsp += num;
+ }
+ }
+ return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract an offset, in
+** [+-]hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the time.
+*/
+
+static const char *
+getoffset(strp, offsetp)
+const char * strp;
+long * const offsetp;
+{
+ int neg = 0;
+
+ if (*strp == '-') {
+ neg = 1;
+ ++strp;
+ } else if (*strp == '+')
+ ++strp;
+ strp = getsecs(strp, offsetp);
+ if (strp == NULL)
+ return NULL; /* illegal time */
+ if (neg)
+ *offsetp = -*offsetp;
+ return strp;
+}
+
+/*
+** Given a pointer into a time zone string, extract a rule in the form
+** date[/time]. See POSIX section 8 for the format of "date" and "time".
+** If a valid rule is not found, return NULL.
+** Otherwise, return a pointer to the first character not part of the rule.
+*/
+
+static const char *
+getrule(strp, rulep)
+const char * strp;
+struct rule * const rulep;
+{
+ if (*strp == 'J') {
+ /*
+ ** Julian day.
+ */
+ rulep->r_type = JULIAN_DAY;
+ ++strp;
+ strp = getnum(strp, &rulep->r_day, 1, DAYSPERNYEAR);
+ } else if (*strp == 'M') {
+ /*
+ ** Month, week, day.
+ */
+ rulep->r_type = MONTH_NTH_DAY_OF_WEEK;
+ ++strp;
+ strp = getnum(strp, &rulep->r_mon, 1, MONSPERYEAR);
+ if (strp == NULL)
+ return NULL;
+ if (*strp++ != '.')
+ return NULL;
+ strp = getnum(strp, &rulep->r_week, 1, 5);
+ if (strp == NULL)
+ return NULL;
+ if (*strp++ != '.')
+ return NULL;
+ strp = getnum(strp, &rulep->r_day, 0, DAYSPERWEEK - 1);
+ } else if (is_digit(*strp)) {
+ /*
+ ** Day of year.
+ */
+ rulep->r_type = DAY_OF_YEAR;
+ strp = getnum(strp, &rulep->r_day, 0, DAYSPERLYEAR - 1);
+ } else return NULL; /* invalid format */
+ if (strp == NULL)
+ return NULL;
+ if (*strp == '/') {
+ /*
+ ** Time specified.
+ */
+ ++strp;
+ strp = getsecs(strp, &rulep->r_time);
+ } else rulep->r_time = 2 * SECSPERHOUR; /* default = 2:00:00 */
+ return strp;
+}
+
+/*
+** Given the Epoch-relative time of January 1, 00:00:00 UTC, in a year, the
+** year, a rule, and the offset from UTC at the time that rule takes effect,
+** calculate the Epoch-relative time that rule takes effect.
+*/
+
+static time_t
+transtime(janfirst, year, rulep, offset)
+const time_t janfirst;
+const int year;
+const struct rule * const rulep;
+const long offset;
+{
+ int leapyear;
+ time_t value;
+ int i;
+ int d, m1, yy0, yy1, yy2, dow;
+
+ INITIALIZE(value);
+ leapyear = isleap(year);
+ switch (rulep->r_type) {
+
+ case JULIAN_DAY:
+ /*
+ ** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap
+ ** years.
+ ** In non-leap years, or if the day number is 59 or less, just
+ ** add SECSPERDAY times the day number-1 to the time of
+ ** January 1, midnight, to get the day.
+ */
+ value = janfirst + (rulep->r_day - 1) * SECSPERDAY;
+ if (leapyear && rulep->r_day >= 60)
+ value += SECSPERDAY;
+ break;
+
+ case DAY_OF_YEAR:
+ /*
+ ** n - day of year.
+ ** Just add SECSPERDAY times the day number to the time of
+ ** January 1, midnight, to get the day.
+ */
+ value = janfirst + rulep->r_day * SECSPERDAY;
+ break;
+
+ case MONTH_NTH_DAY_OF_WEEK:
+ /*
+ ** Mm.n.d - nth "dth day" of month m.
+ */
+ value = janfirst;
+ for (i = 0; i < rulep->r_mon - 1; ++i)
+ value += mon_lengths[leapyear][i] * SECSPERDAY;
+
+ /*
+ ** Use Zeller's Congruence to get day-of-week of first day of
+ ** month.
+ */
+ m1 = (rulep->r_mon + 9) % 12 + 1;
+ yy0 = (rulep->r_mon <= 2) ? (year - 1) : year;
+ yy1 = yy0 / 100;
+ yy2 = yy0 % 100;
+ dow = ((26 * m1 - 2) / 10 +
+ 1 + yy2 + yy2 / 4 + yy1 / 4 - 2 * yy1) % 7;
+ if (dow < 0)
+ dow += DAYSPERWEEK;
+
+ /*
+ ** "dow" is the day-of-week of the first day of the month. Get
+ ** the day-of-month (zero-origin) of the first "dow" day of the
+ ** month.
+ */
+ d = rulep->r_day - dow;
+ if (d < 0)
+ d += DAYSPERWEEK;
+ for (i = 1; i < rulep->r_week; ++i) {
+ if (d + DAYSPERWEEK >=
+ mon_lengths[leapyear][rulep->r_mon - 1])
+ break;
+ d += DAYSPERWEEK;
+ }
+
+ /*
+ ** "d" is the day-of-month (zero-origin) of the day we want.
+ */
+ value += d * SECSPERDAY;
+ break;
+ }
+
+ /*
+ ** "value" is the Epoch-relative time of 00:00:00 UTC on the day in
+ ** question. To get the Epoch-relative time of the specified local
+ ** time on that day, add the transition time and the current offset
+ ** from UTC.
+ */
+ return value + rulep->r_time + offset;
+}
+
+/*
+** Given a POSIX section 8-style TZ string, fill in the rule tables as
+** appropriate.
+*/
+
+static int
+tzparse(name, sp, lastditch)
+const char * name;
+struct state * const sp;
+const int lastditch;
+{
+ const char * stdname;
+ const char * dstname;
+ size_t stdlen;
+ size_t dstlen;
+ long stdoffset;
+ long dstoffset;
+ time_t * atp;
+ unsigned char * typep;
+ char * cp;
+ int load_result;
+
+ INITIALIZE(dstname);
+ stdname = name;
+ if (lastditch) {
+ stdlen = strlen(name); /* length of standard zone name */
+ name += stdlen;
+ if (stdlen >= sizeof sp->chars)
+ stdlen = (sizeof sp->chars) - 1;
+ #ifndef __SYMBIAN32__
+ stdoffset = 0;
+ #else //__SYMBIAN32__
+ stdoffset = (-1)*GetStdOffset();
+ #endif //__SYMBIAN32__
+ } else {
+ name = getzname(name);
+ stdlen = name - stdname;
+ if (stdlen < 3)
+ return -1;
+ if (*name == '\0')
+ return -1; /* was "stdoffset = 0;" */
+ else {
+ name = getoffset(name, &stdoffset);
+ if (name == NULL)
+ return -1;
+ }
+ }
+ load_result = tzload(TZDEFRULES, sp);
+ if (load_result != 0)
+ sp->leapcnt = 0; /* so, we're off a little */
+ if (*name != '\0') {
+ dstname = name;
+ name = getzname(name);
+ dstlen = name - dstname; /* length of DST zone name */
+ if (dstlen < 3)
+ return -1;
+ if (*name != '\0' && *name != ',' && *name != ';') {
+ name = getoffset(name, &dstoffset);
+ if (name == NULL)
+ return -1;
+ } else dstoffset = stdoffset - SECSPERHOUR;
+ if (*name == '\0' && load_result != 0)
+ name = TZDEFRULESTRING;
+ if (*name == ',' || *name == ';') {
+ struct rule start;
+ struct rule end;
+ int year;
+ time_t janfirst;
+ time_t starttime;
+ time_t endtime;
+
+ ++name;
+ if ((name = getrule(name, &start)) == NULL)
+ return -1;
+ if (*name++ != ',')
+ return -1;
+ if ((name = getrule(name, &end)) == NULL)
+ return -1;
+ if (*name != '\0')
+ return -1;
+ sp->typecnt = 2; /* standard time and DST */
+ /*
+ ** Two transitions per year, from EPOCH_YEAR to 2037.
+ */
+ sp->timecnt = 2 * (2037 - EPOCH_YEAR + 1);
+ if (sp->timecnt > TZ_MAX_TIMES)
+ return -1;
+ sp->ttis[0].tt_gmtoff = -dstoffset;
+ sp->ttis[0].tt_isdst = 1;
+ sp->ttis[0].tt_abbrind = stdlen + 1;
+ sp->ttis[1].tt_gmtoff = -stdoffset;
+ sp->ttis[1].tt_isdst = 0;
+ sp->ttis[1].tt_abbrind = 0;
+ atp = sp->ats;
+ typep = sp->types;
+ janfirst = 0;
+ for (year = EPOCH_YEAR; year <= 2037; ++year) {
+ starttime = transtime(janfirst, year, &start,
+ stdoffset);
+ endtime = transtime(janfirst, year, &end,
+ dstoffset);
+ if (starttime > endtime) {
+ *atp++ = endtime;
+ *typep++ = 1; /* DST ends */
+ *atp++ = starttime;
+ *typep++ = 0; /* DST begins */
+ } else {
+ *atp++ = starttime;
+ *typep++ = 0; /* DST begins */
+ *atp++ = endtime;
+ *typep++ = 1; /* DST ends */
+ }
+ janfirst += year_lengths[isleap(year)] *
+ SECSPERDAY;
+ }
+ } else {
+ long theirstdoffset;
+ long theirdstoffset;
+ long theiroffset;
+ int isdst;
+ int i;
+ int j;
+
+ if (*name != '\0')
+ return -1;
+ /*
+ ** Initial values of theirstdoffset and theirdstoffset.
+ */
+ theirstdoffset = 0;
+ for (i = 0; i < sp->timecnt; ++i) {
+ j = sp->types[i];
+ if (!sp->ttis[j].tt_isdst) {
+ theirstdoffset =
+ -sp->ttis[j].tt_gmtoff;
+ break;
+ }
+ }
+ theirdstoffset = 0;
+ for (i = 0; i < sp->timecnt; ++i) {
+ j = sp->types[i];
+ if (sp->ttis[j].tt_isdst) {
+ theirdstoffset =
+ -sp->ttis[j].tt_gmtoff;
+ break;
+ }
+ }
+ /*
+ ** Initially we're assumed to be in standard time.
+ */
+ isdst = FALSE;
+ theiroffset = theirstdoffset;
+ /*
+ ** Now juggle transition times and types
+ ** tracking offsets as you do.
+ */
+ for (i = 0; i < sp->timecnt; ++i) {
+ j = sp->types[i];
+ sp->types[i] = sp->ttis[j].tt_isdst;
+ if (sp->ttis[j].tt_ttisgmt) {
+ /* No adjustment to transition time */
+ } else {
+ /*
+ ** If summer time is in effect, and the
+ ** transition time was not specified as
+ ** standard time, add the summer time
+ ** offset to the transition time;
+ ** otherwise, add the standard time
+ ** offset to the transition time.
+ */
+ /*
+ ** Transitions from DST to DDST
+ ** will effectively disappear since
+ ** POSIX provides for only one DST
+ ** offset.
+ */
+ if (isdst && !sp->ttis[j].tt_ttisstd) {
+ sp->ats[i] += dstoffset -
+ theirdstoffset;
+ } else {
+ sp->ats[i] += stdoffset -
+ theirstdoffset;
+ }
+ }
+ theiroffset = -sp->ttis[j].tt_gmtoff;
+ if (sp->ttis[j].tt_isdst)
+ theirdstoffset = theiroffset;
+ else theirstdoffset = theiroffset;
+ }
+ /*
+ ** Finally, fill in ttis.
+ ** ttisstd and ttisgmt need not be handled.
+ */
+ sp->ttis[0].tt_gmtoff = -stdoffset;
+ sp->ttis[0].tt_isdst = FALSE;
+ sp->ttis[0].tt_abbrind = 0;
+ sp->ttis[1].tt_gmtoff = -dstoffset;
+ sp->ttis[1].tt_isdst = TRUE;
+ sp->ttis[1].tt_abbrind = stdlen + 1;
+ sp->typecnt = 2;
+ }
+ } else {
+ dstlen = 0;
+ sp->typecnt = 1; /* only standard time */
+ sp->timecnt = 0;
+ sp->ttis[0].tt_gmtoff = -stdoffset;
+ #ifndef __SYMBIAN32__
+ sp->ttis[0].tt_isdst = 0;
+ #else //__SYMBIAN32__
+ sp->ttis[0].tt_isdst = GetIsDst();
+ #endif //__SYMBIAN32__
+ sp->ttis[0].tt_abbrind = 0;
+ }
+ sp->charcnt = stdlen + 1;
+ if (dstlen != 0)
+ sp->charcnt += dstlen + 1;
+ if ((size_t) sp->charcnt > sizeof sp->chars)
+ return -1;
+ cp = sp->chars;
+ (void) strncpy(cp, stdname, stdlen);
+ cp += stdlen;
+ *cp++ = '\0';
+ if (dstlen != 0) {
+ (void) strncpy(cp, dstname, dstlen);
+ *(cp + dstlen) = '\0';
+ }
+ return 0;
+}
+
+static void
+gmtload(sp)
+struct state * const sp;
+{
+ if (tzload(gmt, sp) != 0)
+ (void) tzparse(gmt, sp, TRUE);
+}
+
+static void
+tzsetwall_basic(void)
+{
+ if (lcl_is_set < 0)
+ return;
+ lcl_is_set = -1;
+
+#ifdef ALL_STATE
+ if (lclptr == NULL) {
+ lclptr = (struct state *) malloc(sizeof *lclptr);
+ if (lclptr == NULL) {
+ settzname(); /* all we can do */
+ return;
+ }
+ }
+#endif /* defined ALL_STATE */
+ if (tzload((char *) NULL, lclptr) != 0)
+ gmtload(lclptr);
+ settzname();
+}
+
+#ifndef __SYMBIAN32__
+void
+tzsetwall(void)
+{
+ _MUTEX_LOCK(&lcl_mutex);
+ tzsetwall_basic();
+ _MUTEX_UNLOCK(&lcl_mutex);
+}
+#endif //__SYMBIAN32__
+
+static void
+tzset_basic(void)
+{
+ const char * name;
+
+ name = getenv("TZ");
+ if (name == NULL) {
+ tzsetwall_basic();
+ return;
+ }
+
+ if (lcl_is_set > 0 && strcmp(lcl_TZname, name) == 0)
+ return;
+ lcl_is_set = strlen(name) < sizeof lcl_TZname;
+ if (lcl_is_set)
+ (void) strcpy(lcl_TZname, name);
+
+#ifdef ALL_STATE
+ if (lclptr == NULL) {
+ lclptr = (struct state *) malloc(sizeof *lclptr);
+ if (lclptr == NULL) {
+ settzname(); /* all we can do */
+ return;
+ }
+ }
+#endif /* defined ALL_STATE */
+ if (*name == '\0') {
+ /*
+ ** User wants it fast rather than right.
+ */
+ lclptr->leapcnt = 0; /* so, we're off a little */
+ lclptr->timecnt = 0;
+ lclptr->typecnt = 0;
+ lclptr->ttis[0].tt_isdst = 0;
+ lclptr->ttis[0].tt_gmtoff = 0;
+ lclptr->ttis[0].tt_abbrind = 0;
+ (void) strcpy(lclptr->chars, gmt);
+ } else if (tzload(name, lclptr) != 0)
+ if (name[0] == ':' || tzparse(name, lclptr, FALSE) != 0)
+ (void) gmtload(lclptr);
+ settzname();
+}
+
+EXPORT_C
+void
+tzset(void)
+{
+ _MUTEX_LOCK(&lcl_mutex);
+ tzset_basic();
+ _MUTEX_UNLOCK(&lcl_mutex);
+}
+
+/*
+** The easy way to behave "as if no library function calls" localtime
+** is to not call it--so we drop its guts into "localsub", which can be
+** freely called. (And no, the PANS doesn't require the above behavior--
+** but it *is* desirable.)
+**
+** The unused offset argument is for the benefit of mktime variants.
+*/
+
+/*ARGSUSED*/
+static void
+localsub(timep, offset, tmp)
+const time_t * const timep;
+#ifdef __SYMBIAN32__
+long offset;
+#else//__SYMBIAN32__
+const long offset;
+#endif//__SYMBIAN32__
+struct tm * const tmp;
+{
+ struct state * sp;
+ const struct ttinfo * ttisp;
+ int i;
+ const time_t t = *timep;
+
+ sp = lclptr;
+#ifdef __SYMBIAN32__
+ offset = offset; /*to fix warning 'variable/argument not used in function' */
+#endif //__SYMBIAN32__
+#ifdef ALL_STATE
+ if (sp == NULL) {
+ gmtsub(timep, offset, tmp);
+ return;
+ }
+#endif /* defined ALL_STATE */
+ if (sp->timecnt == 0 || t < sp->ats[0]) {
+ i = 0;
+ while (sp->ttis[i].tt_isdst)
+ if (++i >= sp->typecnt) {
+ i = 0;
+ break;
+ }
+ } else {
+ for (i = 1; i < sp->timecnt; ++i)
+ if (t < sp->ats[i])
+ break;
+ i = sp->types[i - 1];
+ }
+ ttisp = &sp->ttis[i];
+ /*
+ ** To get (wrong) behavior that's compatible with System V Release 2.0
+ ** you'd replace the statement below with
+ ** t += ttisp->tt_gmtoff;
+ ** timesub(&t, 0L, sp, tmp);
+ */
+ timesub(&t, ttisp->tt_gmtoff, sp, tmp);
+ tmp->tm_isdst = ttisp->tt_isdst;
+ tzname[tmp->tm_isdst] = &sp->chars[ttisp->tt_abbrind];
+#ifdef TM_ZONE
+ tmp->TM_ZONE = &sp->chars[ttisp->tt_abbrind];
+#endif /* defined TM_ZONE */
+}
+
+EXPORT_C
+struct tm *
+localtime(timep)
+const time_t * const timep;
+{
+#ifdef __SYMBIAN32__
+int err = 0;
+#ifndef EMULATOR
+ static pthread_mutex_t localtime_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static pthread_key_t localtime_key = (unsigned)-1;
+#endif //EMULATOR
+#else //__SYMBIAN32__
+ static pthread_mutex_t localtime_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static pthread_key_t localtime_key = -1;
+#endif //__SYMBIAN32__
+ struct tm *p_tm;
+
+ if (__isthreaded != 0) {
+ _pthread_mutex_lock(&localtime_mutex);
+ if (localtime_key == (pthread_key_t)-1) {
+ if (_pthread_key_create(&localtime_key, free) < 0) {
+ _pthread_mutex_unlock(&localtime_mutex);
+ return(NULL);
+ }
+ }
+ _pthread_mutex_unlock(&localtime_mutex);
+ p_tm = _pthread_getspecific(localtime_key);
+ if (p_tm == NULL) {
+ if ((p_tm = (struct tm *)malloc(sizeof(struct tm)))
+ == NULL)
+ return(NULL);
+ _pthread_setspecific(localtime_key, p_tm);
+ }
+ _pthread_mutex_lock(&lcl_mutex);
+ tzset_basic();
+ localsub(timep, 0L, p_tm);
+#ifdef __SYMBIAN32__
+ if(getenv("TZ") == NULL)
+ {
+ err = ConvertTime(EUtcToLocal, (TInt*)timep, p_tm);
+ }
+#endif
+ _pthread_mutex_unlock(&lcl_mutex);
+ if(err)
+ {
+ return NULL;
+ }
+
+ return(p_tm);
+ } else {
+ tzset_basic();
+ #ifdef __SYMBIAN32__
+ localsub(timep, 0L, &stm);
+ if(getenv("TZ") == NULL)
+ {
+ err = ConvertTime(EUtcToLocal,(TInt*)timep,&stm);
+ if(err)
+ {
+ return NULL;
+ }
+ }
+ return(&stm);
+ #else //__SYMBIAN32__
+ localsub(timep, 0L, &tm);
+ return(&tm);
+ #endif //__SYMBIAN32__
+ }
+}
+
+/*
+** Re-entrant version of localtime.
+*/
+
+EXPORT_C
+struct tm *
+localtime_r(timep, tm)
+const time_t * const timep;
+struct tm * tm;
+{
+#ifdef __SYMBIAN32__
+int err = 0;
+#endif //__SYMBIAN32__
+ _MUTEX_LOCK(&lcl_mutex);
+ tzset_basic();
+ localsub(timep, 0L, tm);
+#ifdef __SYMBIAN32__
+ if(getenv("TZ") == NULL)
+ {
+ err = ConvertTime(EUtcToLocal,(TInt*)timep,tm);
+ if(err)
+ {
+ _MUTEX_UNLOCK(&lcl_mutex);
+ return NULL;
+ }
+ }
+#endif //__SYMBIAN32__
+ _MUTEX_UNLOCK(&lcl_mutex);
+ return tm;
+}
+
+/*
+** gmtsub is to gmtime as localsub is to localtime.
+*/
+
+static void
+gmtsub(timep, offset, tmp)
+const time_t * const timep;
+const long offset;
+struct tm * const tmp;
+{
+ _MUTEX_LOCK(&gmt_mutex);
+ if (!gmt_is_set) {
+ gmt_is_set = TRUE;
+#ifdef ALL_STATE
+ gmtptr = (struct state *) malloc(sizeof *gmtptr);
+ if (gmtptr != NULL)
+#endif /* defined ALL_STATE */
+ #ifndef __SYMBIAN32__
+ gmtload(gmtptr);
+ #endif //__SYMBIAN32__
+ }
+ _MUTEX_UNLOCK(&gmt_mutex);
+ timesub(timep, offset, gmtptr, tmp);
+#ifdef TM_ZONE
+ /*
+ ** Could get fancy here and deliver something such as
+ ** "UTC+xxxx" or "UTC-xxxx" if offset is non-zero,
+ ** but this is no time for a treasure hunt.
+ */
+ if (offset != 0)
+ tmp->TM_ZONE = wildabbr;
+ else {
+#ifdef ALL_STATE
+ if (gmtptr == NULL)
+ tmp->TM_ZONE = gmt;
+ else tmp->TM_ZONE = gmtptr->chars;
+#endif /* defined ALL_STATE */
+#ifndef ALL_STATE
+ #ifndef __SYMBIAN32__
+ tmp->TM_ZONE = gmtptr->chars;
+ #else //__SYMBIAN32__
+ tmp->TM_ZONE ="UTC";
+ #endif //__SYMBIAN32__
+#endif /* State Farm */
+ }
+#endif /* defined TM_ZONE */
+}
+
+EXPORT_C
+struct tm *
+gmtime(timep)
+const time_t * const timep;
+{
+#ifdef __SYMBIAN32__
+#ifndef EMULATOR
+ static pthread_mutex_t gmtime_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static pthread_key_t gmtime_key = (unsigned)-1;
+#endif //EMULATOR
+#else //__SYMBIAN32__
+ static pthread_mutex_t gmtime_mutex = PTHREAD_MUTEX_INITIALIZER;
+ static pthread_key_t gmtime_key = -1;
+#endif //__SYMBIAN32__
+ struct tm *p_tm;
+
+ if (__isthreaded != 0) {
+ _pthread_mutex_lock(&gmtime_mutex);
+ if (gmtime_key == (pthread_key_t)-1) {
+ if (_pthread_key_create(&gmtime_key, free) < 0) {
+ _pthread_mutex_unlock(&gmtime_mutex);
+ return(NULL);
+ }
+ }
+ _pthread_mutex_unlock(&gmtime_mutex);
+ /*
+ * Changed to follow POSIX.1 threads standard, which
+ * is what BSD currently has.
+ */
+ if ((p_tm = _pthread_getspecific(gmtime_key)) == NULL) {
+ if ((p_tm = (struct tm *)malloc(sizeof(struct tm)))
+ == NULL) {
+ return(NULL);
+ }
+ _pthread_setspecific(gmtime_key, p_tm);
+ }
+ gmtsub(timep, 0L, p_tm);
+ return(p_tm);
+ }
+ else {
+ #ifdef __SYMBIAN32__
+ gmtsub(timep, 0L, &stm);
+ return(&stm);
+ #else //__SYMBIAN32__
+ gmtsub(timep, 0L, &tm);
+ return(&tm);
+ #endif //__SYMBIAN32__
+ }
+}
+
+/*
+* Re-entrant version of gmtime.
+*/
+
+EXPORT_C
+struct tm *
+gmtime_r(timep, tm)
+const time_t * const timep;
+struct tm * tm;
+{
+ gmtsub(timep, 0L, tm);
+ return tm;
+}
+
+#ifdef STD_INSPIRED
+#ifdef __SYMBIAN_COMPILE_UNUSED__
+struct tm *
+offtime(timep, offset)
+const time_t * const timep;
+const long offset;
+{
+#ifdef __SYMBIAN32__
+ gmtsub(timep, offset, &stm);
+ return &stm;
+#else //__SYMBIAN32__
+ gmtsub(timep, offset, &tm);
+ return &tm;
+#endif //__SYMBIAN32__
+}
+#endif //__SYMBIAN_COMPILE_UNUSED__
+#endif /* defined STD_INSPIRED */
+
+static void
+timesub(timep, offset, sp, tmp)
+const time_t * const timep;
+const long offset;
+const struct state * const sp;
+struct tm * const tmp;
+{
+ const struct lsinfo * lp;
+ long days;
+ long rem;
+ long y;
+ int yleap;
+ const int * ip;
+ long corr;
+ int hit;
+ int i;
+
+ corr = 0;
+ hit = 0;
+#ifdef ALL_STATE
+ i = (sp == NULL) ? 0 : sp->leapcnt;
+#endif /* defined ALL_STATE */
+#ifndef ALL_STATE
+ i = sp->leapcnt;
+#endif /* State Farm */
+ while (--i >= 0) {
+ lp = &sp->lsis[i];
+ if (*timep >= lp->ls_trans) {
+ if (*timep == lp->ls_trans) {
+ hit = ((i == 0 && lp->ls_corr > 0) ||
+ lp->ls_corr > sp->lsis[i - 1].ls_corr);
+ if (hit)
+ while (i > 0 &&
+ sp->lsis[i].ls_trans ==
+ sp->lsis[i - 1].ls_trans + 1 &&
+ sp->lsis[i].ls_corr ==
+ sp->lsis[i - 1].ls_corr + 1) {
+ ++hit;
+ --i;
+ }
+ }
+ corr = lp->ls_corr;
+ break;
+ }
+ }
+ days = *timep / SECSPERDAY;
+ rem = *timep % SECSPERDAY;
+#ifdef mc68k
+ if (*timep == 0x80000000) {
+ /*
+ ** A 3B1 muffs the division on the most negative number.
+ */
+ days = -24855;
+ rem = -11648;
+ }
+#endif /* defined mc68k */
+ rem += (offset - corr);
+ while (rem < 0) {
+ rem += SECSPERDAY;
+ --days;
+ }
+ while (rem >= SECSPERDAY) {
+ rem -= SECSPERDAY;
+ ++days;
+ }
+ tmp->tm_hour = (int) (rem / SECSPERHOUR);
+ rem = rem % SECSPERHOUR;
+ tmp->tm_min = (int) (rem / SECSPERMIN);
+ /*
+ ** A positive leap second requires a special
+ ** representation. This uses "... ??:59:60" et seq.
+ */
+ tmp->tm_sec = (int) (rem % SECSPERMIN) + hit;
+ tmp->tm_wday = (int) ((EPOCH_WDAY + days) % DAYSPERWEEK);
+ if (tmp->tm_wday < 0)
+ tmp->tm_wday += DAYSPERWEEK;
+ y = EPOCH_YEAR;
+#define LEAPS_THRU_END_OF(y) ((y) / 4 - (y) / 100 + (y) / 400)
+ while (days < 0 || days >= (long) year_lengths[yleap = isleap(y)]) {
+ long newy;
+
+ newy = y + days / DAYSPERNYEAR;
+ if (days < 0)
+ --newy;
+ days -= (newy - y) * DAYSPERNYEAR +
+ LEAPS_THRU_END_OF(newy - 1) -
+ LEAPS_THRU_END_OF(y - 1);
+ y = newy;
+ }
+ tmp->tm_year = y - TM_YEAR_BASE;
+ tmp->tm_yday = (int) days;
+ ip = mon_lengths[yleap];
+ for (tmp->tm_mon = 0; days >= (long) ip[tmp->tm_mon]; ++(tmp->tm_mon))
+ days = days - (long) ip[tmp->tm_mon];
+ tmp->tm_mday = (int) (days + 1);
+ tmp->tm_isdst = 0;
+#ifdef TM_GMTOFF
+ tmp->TM_GMTOFF = offset;
+#endif /* defined TM_GMTOFF */
+}
+
+EXPORT_C
+char *
+ctime(timep)
+const time_t * const timep;
+{
+/*
+** Section 4.12.3.2 of X3.159-1989 requires that
+** The ctime function converts the calendar time pointed to by timer
+** to local time in the form of a string. It is equivalent to
+** asctime(localtime(timer))
+*/
+ return asctime(localtime(timep));
+}
+
+EXPORT_C
+wchar_t *
+wctime(timep)
+const time_t * const timep;
+{
+/*
+** Section 4.12.3.2 of X3.159-1989 requires that
+** The wctime function converts the calendar time pointed to by timer
+** to local time in the form of a wide char string. It is equivalent to
+** wasctime(localtime(timer))
+*/
+ if (timep == NULL)
+ return NULL;
+ else
+ return (wchar_t *)wasctime(localtime(timep));
+}
+
+EXPORT_C
+char *
+ctime_r(timep, buf)
+const time_t * const timep;
+char * buf;
+{
+ struct tm tm;
+
+ return asctime_r(localtime_r(timep, &tm), buf);
+}
+
+/*
+** Adapted from code provided by Robert Elz, who writes:
+** The "best" way to do mktime I think is based on an idea of Bob
+** Kridle's (so its said...) from a long time ago.
+** [kridle@xinet.com as of 1996-01-16.]
+** It does a binary search of the time_t space. Since time_t's are
+** just 32 bits, its a max of 32 iterations (even at 64 bits it
+** would still be very reasonable).
+*/
+
+#ifndef WRONG
+#define WRONG (-1)
+#endif /* !defined WRONG */
+
+/*
+** Simplified normalize logic courtesy Paul Eggert (eggert@twinsun.com).
+*/
+
+static int
+increment_overflow(number, delta)
+int * number;
+int delta;
+{
+ int number0;
+
+ number0 = *number;
+ *number += delta;
+ return (*number < number0) != (delta < 0);
+}
+
+static int
+normalize_overflow(tensptr, unitsptr, base)
+int * const tensptr;
+int * const unitsptr;
+const int base;
+{
+ int tensdelta;
+
+ tensdelta = (*unitsptr >= 0) ?
+ (*unitsptr / base) :
+ (-1 - (-1 - *unitsptr) / base);
+ *unitsptr -= tensdelta * base;
+ return increment_overflow(tensptr, tensdelta);
+}
+
+static int
+tmcomp(atmp, btmp)
+const struct tm * const atmp;
+const struct tm * const btmp;
+{
+ int result;
+
+ if ((result = (atmp->tm_year - btmp->tm_year)) == 0 &&
+ (result = (atmp->tm_mon - btmp->tm_mon)) == 0 &&
+ (result = (atmp->tm_mday - btmp->tm_mday)) == 0 &&
+ (result = (atmp->tm_hour - btmp->tm_hour)) == 0 &&
+ (result = (atmp->tm_min - btmp->tm_min)) == 0)
+ result = atmp->tm_sec - btmp->tm_sec;
+ return result;
+}
+
+static time_t
+time2sub(tmp, funcp, offset, okayp, do_norm_secs)
+struct tm * const tmp;
+void (* const funcp)(const time_t*, long, struct tm*);
+const long offset;
+int * const okayp;
+const int do_norm_secs;
+{
+ const struct state * sp;
+ int dir;
+ int bits;
+ int i, j ;
+ int saved_seconds;
+ time_t newt;
+ time_t t;
+ struct tm yourtm, mytm;
+
+ *okayp = FALSE;
+ yourtm = *tmp;
+ if (do_norm_secs) {
+ if (normalize_overflow(&yourtm.tm_min, &yourtm.tm_sec,
+ SECSPERMIN))
+ return WRONG;
+ }
+ if (normalize_overflow(&yourtm.tm_hour, &yourtm.tm_min, MINSPERHOUR))
+ return WRONG;
+ if (normalize_overflow(&yourtm.tm_mday, &yourtm.tm_hour, HOURSPERDAY))
+ return WRONG;
+ if (normalize_overflow(&yourtm.tm_year, &yourtm.tm_mon, MONSPERYEAR))
+ return WRONG;
+ /*
+ ** Turn yourtm.tm_year into an actual year number for now.
+ ** It is converted back to an offset from TM_YEAR_BASE later.
+ */
+ if (increment_overflow(&yourtm.tm_year, TM_YEAR_BASE))
+ return WRONG;
+ while (yourtm.tm_mday <= 0) {
+ if (increment_overflow(&yourtm.tm_year, -1))
+ return WRONG;
+ i = yourtm.tm_year + (1 < yourtm.tm_mon);
+ yourtm.tm_mday += year_lengths[isleap(i)];
+ }
+ while (yourtm.tm_mday > DAYSPERLYEAR) {
+ i = yourtm.tm_year + (1 < yourtm.tm_mon);
+ yourtm.tm_mday -= year_lengths[isleap(i)];
+ if (increment_overflow(&yourtm.tm_year, 1))
+ return WRONG;
+ }
+ for ( ; ; ) {
+ i = mon_lengths[isleap(yourtm.tm_year)][yourtm.tm_mon];
+ if (yourtm.tm_mday <= i)
+ break;
+ yourtm.tm_mday -= i;
+ if (++yourtm.tm_mon >= MONSPERYEAR) {
+ yourtm.tm_mon = 0;
+ if (increment_overflow(&yourtm.tm_year, 1))
+ return WRONG;
+ }
+ }
+ if (increment_overflow(&yourtm.tm_year, -TM_YEAR_BASE))
+ return WRONG;
+ /* Don't go below 1900 for POLA */
+ if (yourtm.tm_year < 0)
+ return WRONG;
+ if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN)
+ saved_seconds = 0;
+ else if (yourtm.tm_year + TM_YEAR_BASE < EPOCH_YEAR) {
+ /*
+ ** We can't set tm_sec to 0, because that might push the
+ ** time below the minimum representable time.
+ ** Set tm_sec to 59 instead.
+ ** This assumes that the minimum representable time is
+ ** not in the same minute that a leap second was deleted from,
+ ** which is a safer assumption than using 58 would be.
+ */
+ if (increment_overflow(&yourtm.tm_sec, 1 - SECSPERMIN))
+ return WRONG;
+ saved_seconds = yourtm.tm_sec;
+ yourtm.tm_sec = SECSPERMIN - 1;
+ } else {
+ saved_seconds = yourtm.tm_sec;
+ yourtm.tm_sec = 0;
+ }
+ /*
+ ** Divide the search space in half
+ ** (this works whether time_t is signed or unsigned).
+ */
+ bits = TYPE_BIT(time_t) - 1;
+ /*
+ ** If we have more than this, we will overflow tm_year for tmcomp().
+ ** We should really return an error if we cannot represent it.
+ */
+ if (bits > 56)
+ bits = 56;
+ /*
+ ** If time_t is signed, then 0 is just above the median,
+ ** assuming two's complement arithmetic.
+ ** If time_t is unsigned, then (1 << bits) is just above the median.
+ */
+ t = TYPE_SIGNED(time_t) ? 0 : (((time_t) 1) << bits);
+ for ( ; ; ) {
+ (*funcp)(&t, offset, &mytm);
+ dir = tmcomp(&mytm, &yourtm);
+ if (dir != 0) {
+ if (bits-- < 0)
+ return WRONG;
+ if (bits < 0)
+ --t; /* may be needed if new t is minimal */
+ else if (dir > 0)
+ t -= ((time_t) 1) << bits;
+ else t += ((time_t) 1) << bits;
+ continue;
+ }
+ if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst)
+ break;
+ /*
+ ** Right time, wrong type.
+ ** Hunt for right time, right type.
+ ** It's okay to guess wrong since the guess
+ ** gets checked.
+ */
+ sp = (funcp == localsub) ? lclptr : gmtptr;
+#ifdef ALL_STATE
+ if (sp == NULL)
+ return WRONG;
+#endif /* defined ALL_STATE */
+ for (i = sp->typecnt - 1; i >= 0; --i) {
+ if (sp->ttis[i].tt_isdst != yourtm.tm_isdst)
+ continue;
+ for (j = sp->typecnt - 1; j >= 0; --j) {
+ if (sp->ttis[j].tt_isdst == yourtm.tm_isdst)
+ continue;
+ newt = t + sp->ttis[j].tt_gmtoff -
+ sp->ttis[i].tt_gmtoff;
+ (*funcp)(&newt, offset, &mytm);
+ if (tmcomp(&mytm, &yourtm) != 0)
+ continue;
+ if (mytm.tm_isdst != yourtm.tm_isdst)
+ continue;
+ /*
+ ** We have a match.
+ */
+ t = newt;
+ goto label;
+ }
+ }
+ return WRONG;
+ }
+label:
+ newt = t + saved_seconds;
+ if ((newt < t) != (saved_seconds < 0))
+ return WRONG;
+ t = newt;
+ (*funcp)(&t, offset, tmp);
+ *okayp = TRUE;
+ return t;
+}
+
+static time_t
+time2(tmp, funcp, offset, okayp)
+struct tm * const tmp;
+void (* const funcp)(const time_t*, long, struct tm*);
+const long offset;
+int * const okayp;
+{
+ time_t t;
+
+ /*
+ ** First try without normalization of seconds
+ ** (in case tm_sec contains a value associated with a leap second).
+ ** If that fails, try with normalization of seconds.
+ */
+ t = time2sub(tmp, funcp, offset, okayp, FALSE);
+ return *okayp ? t : time2sub(tmp, funcp, offset, okayp, TRUE);
+}
+
+static time_t
+time1(tmp, funcp, offset)
+struct tm * const tmp;
+void (* const funcp)(const time_t *, long, struct tm *);
+const long offset;
+{
+ time_t t;
+ const struct state * sp;
+ int samei, otheri;
+ int sameind, otherind;
+ int i;
+ int nseen;
+ int seen[TZ_MAX_TYPES];
+ int types[TZ_MAX_TYPES];
+ int okay;
+
+/* #ifdef __SYMBIAN32__
+ if (tmp->tm_isdst == 1)
+ tmp->tm_isdst = 0;
+ #endif //__SYMBIAN32__ */
+
+ if (tmp->tm_isdst > 1)
+ tmp->tm_isdst = 1;
+ t = time2(tmp, funcp, offset, &okay);
+#ifdef PCTS
+ /*
+ ** PCTS code courtesy Grant Sullivan (grant@osf.org).
+ */
+ if (okay)
+ return t;
+ if (tmp->tm_isdst < 0)
+ tmp->tm_isdst = 0; /* reset to std and try again */
+#endif /* defined PCTS */
+#ifndef PCTS
+ if (okay || tmp->tm_isdst < 0)
+ return t;
+#endif /* !defined PCTS */
+ /*
+ ** We're supposed to assume that somebody took a time of one type
+ ** and did some math on it that yielded a "struct tm" that's bad.
+ ** We try to divine the type they started from and adjust to the
+ ** type they need.
+ */
+ sp = (funcp == localsub) ? lclptr : gmtptr;
+#ifdef ALL_STATE
+ if (sp == NULL)
+ return WRONG;
+#endif /* defined ALL_STATE */
+ for (i = 0; i < sp->typecnt; ++i)
+ seen[i] = FALSE;
+ nseen = 0;
+ for (i = sp->timecnt - 1; i >= 0; --i)
+ if (!seen[sp->types[i]]) {
+ seen[sp->types[i]] = TRUE;
+ types[nseen++] = sp->types[i];
+ }
+ for (sameind = 0; sameind < nseen; ++sameind) {
+ samei = types[sameind];
+ if (sp->ttis[samei].tt_isdst != tmp->tm_isdst)
+ continue;
+ for (otherind = 0; otherind < nseen; ++otherind) {
+ otheri = types[otherind];
+ if (sp->ttis[otheri].tt_isdst == tmp->tm_isdst)
+ continue;
+ tmp->tm_sec += sp->ttis[otheri].tt_gmtoff -
+ sp->ttis[samei].tt_gmtoff;
+ tmp->tm_isdst = !tmp->tm_isdst;
+ t = time2(tmp, funcp, offset, &okay);
+ if (okay)
+ return t;
+ tmp->tm_sec -= sp->ttis[otheri].tt_gmtoff -
+ sp->ttis[samei].tt_gmtoff;
+ tmp->tm_isdst = !tmp->tm_isdst;
+ }
+ }
+ return WRONG;
+}
+
+EXPORT_C
+time_t
+mktime(tmp)
+struct tm * const tmp;
+{
+ time_t mktime_return_value;
+ struct tm local_tmp;
+#ifdef __SYMBIAN32__
+ int err = 0;
+ if(tmp==NULL)
+ return -1;
+#endif
+ local_tmp = (*tmp);
+ _MUTEX_LOCK(&lcl_mutex);
+ tzset_basic();
+ mktime_return_value = time1(tmp, localsub, 0L);
+#ifdef __SYMBIAN32__
+ if(getenv("TZ") == NULL)
+ {
+ tmp->tm_isdst = local_tmp.tm_isdst;
+ tmp->tm_gmtoff = local_tmp.tm_gmtoff;
+ tmp->tm_zone = local_tmp.tm_zone;
+
+ // if(mktime_return_value != WRONG) //temporay fix. Will be taken up during performance fix
+ // {
+ err = ConvertTime(ELocalToUtc,&mktime_return_value,tmp);
+ if(err)
+ {
+ _MUTEX_UNLOCK(&lcl_mutex);
+ return(time_t)-1;
+ }
+ // }
+ }
+#endif
+ _MUTEX_UNLOCK(&lcl_mutex);
+ return(mktime_return_value);
+}
+
+#ifdef STD_INSPIRED
+
+#ifdef __SYMBIAN_COMPILE_UNUSED__
+time_t
+timelocal(tmp)
+struct tm * const tmp;
+{
+ tmp->tm_isdst = -1; /* in case it wasn't initialized */
+ return mktime(tmp);
+}
+#endif //__SYMBIAN_COMPILE_UNUSED__
+EXPORT_C
+time_t
+timegm(tmp)
+struct tm * const tmp;
+{
+ tmp->tm_isdst = 0;
+ return time1(tmp, gmtsub, 0L);
+}
+
+#ifdef __SYMBIAN_COMPILE_UNUSED__
+time_t
+timeoff(tmp, offset)
+struct tm * const tmp;
+const long offset;
+{
+ tmp->tm_isdst = 0;
+ return time1(tmp, gmtsub, offset);
+}
+#endif //__SYMBIAN_COMPILE_UNUSED__
+#endif /* defined STD_INSPIRED */
+
+#ifdef CMUCS
+
+/*
+** The following is supplied for compatibility with
+** previous versions of the CMUCS runtime library.
+*/
+
+long
+gtime(tmp)
+struct tm * const tmp;
+{
+ const time_t t = mktime(tmp);
+
+ if (t == WRONG)
+ return -1;
+ return t;
+}
+
+#endif /* defined CMUCS */
+
+/*
+** XXX--is the below the right way to conditionalize??
+*/
+
+#ifdef STD_INSPIRED
+#ifdef __SYMBIAN_COMPILE_UNUSED__
+/*
+** IEEE Std 1003.1-1988 (POSIX) legislates that 536457599
+** shall correspond to "Wed Dec 31 23:59:59 UTC 1986", which
+** is not the case if we are accounting for leap seconds.
+** So, we provide the following conversion routines for use
+** when exchanging timestamps with POSIX conforming systems.
+*/
+
+static long
+leapcorr(timep)
+time_t * timep;
+{
+ struct state * sp;
+ struct lsinfo * lp;
+ int i;
+
+ sp = lclptr;
+ i = sp->leapcnt;
+ while (--i >= 0) {
+ lp = &sp->lsis[i];
+ if (*timep >= lp->ls_trans)
+ return lp->ls_corr;
+ }
+ return 0;
+}
+
+time_t
+time2posix(t)
+time_t t;
+{
+ tzset();
+ return t - leapcorr(&t);
+}
+
+time_t
+posix2time(t)
+time_t t;
+{
+ time_t x;
+ time_t y;
+
+ tzset();
+ /*
+ ** For a positive leap second hit, the result
+ ** is not unique. For a negative leap second
+ ** hit, the corresponding time doesn't exist,
+ ** so we return an adjacent second.
+ */
+ x = t + leapcorr(&t);
+ y = x - leapcorr(&x);
+ if (y < t) {
+ do {
+ x++;
+ y = x - leapcorr(&x);
+ } while (y < t);
+ if (t != y)
+ return x - 1;
+ } else if (y > t) {
+ do {
+ --x;
+ y = x - leapcorr(&x);
+ } while (y > t);
+ if (t != y)
+ return x + 1;
+ }
+ return x;
+}
+#endif //__SYMBIAN_COMPILE_UNUSED__
+#endif /* defined STD_INSPIRED */