/*LINTLIBRARY*/
+#define LOCALTIME_IMPLEMENTATION
#include "private.h"
+
#include "tzfile.h"
#include "fcntl.h"
+#if THREAD_SAFE
+# include <pthread.h>
+static pthread_mutex_t locallock = PTHREAD_MUTEX_INITIALIZER;
+static int lock(void) { return pthread_mutex_lock(&locallock); }
+static void unlock(void) { pthread_mutex_unlock(&locallock); }
+#else
+static int lock(void) { return 0; }
+static void unlock(void) { }
+#endif
+
+/* NETBSD_INSPIRED_EXTERN functions are exported to callers if
+ NETBSD_INSPIRED is defined, and are private otherwise. */
+#if NETBSD_INSPIRED
+# define NETBSD_INSPIRED_EXTERN
+#else
+# define NETBSD_INSPIRED_EXTERN static
+#endif
+
#ifndef TZ_ABBR_MAX_LEN
#define TZ_ABBR_MAX_LEN 16
#endif /* !defined TZ_ABBR_MAX_LEN */
#define OPEN_MODE O_RDONLY
#endif /* !defined O_BINARY */
-#if 0
-# define XLOG(xx) printf xx , fflush(stdout)
-#else
-# define XLOG(x) do{}while (0)
-#endif
-
-/* BEGIN android-added: thread-safety. */
-#include <pthread.h>
-static pthread_mutex_t _tzMutex = PTHREAD_MUTEX_INITIALIZER;
-static inline void _tzLock(void) { pthread_mutex_lock(&_tzMutex); }
-static inline void _tzUnlock(void) { pthread_mutex_unlock(&_tzMutex); }
-/* END android-added */
-
#ifndef WILDABBR
/*
** Someone might make incorrect use of a time zone abbreviation:
struct ttinfo { /* time type information */
int_fast32_t tt_gmtoff; /* UT offset in seconds */
- int tt_isdst; /* used to set tm_isdst */
+ bool 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 UT */
+ bool tt_ttisstd; /* transition is std time */
+ bool tt_ttisgmt; /* transition is UT */
};
struct lsinfo { /* leap second information */
int_fast64_t ls_corr; /* correction to apply */
};
+#define SMALLEST(a, b) (((a) < (b)) ? (a) : (b))
#define BIGGEST(a, b) (((a) > (b)) ? (a) : (b))
#ifdef TZNAME_MAX
int timecnt;
int typecnt;
int charcnt;
- int goback;
- int goahead;
+ bool goback;
+ bool goahead;
time_t ats[TZ_MAX_TIMES];
unsigned char types[TZ_MAX_TIMES];
struct ttinfo ttis[TZ_MAX_TYPES];
int defaulttype; /* for early times or if no transitions */
};
+enum r_type {
+ JULIAN_DAY, /* Jn = Julian day */
+ DAY_OF_YEAR, /* n = day of year */
+ MONTH_NTH_DAY_OF_WEEK /* Mm.n.d = month, week, day of week */
+};
+
struct rule {
- int r_type; /* type of rule; see below */
+ enum r_type r_type; /* type of rule */
int r_day; /* day number of rule */
int r_week; /* week number of rule */
int r_mon; /* month number of rule */
int_fast32_t 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.
-*/
-
-/* NOTE: all internal functions assume that _tzLock() was already called */
-
-static int __bionic_open_tzdata(const char*, int*);
-static int_fast32_t detzcode(const char * codep);
-static int_fast64_t detzcode64(const char * codep);
-static int differ_by_repeat(time_t t1, time_t t0);
-static const char * getzname(const char * strp) ATTRIBUTE_PURE;
-static const char * getqzname(const char * strp, const int delim)
- ATTRIBUTE_PURE;
-static const char * getnum(const char * strp, int * nump, int min,
- int max);
-static const char * getsecs(const char * strp, int_fast32_t * secsp);
-static const char * getoffset(const char * strp, int_fast32_t * offsetp);
-static const char * getrule(const char * strp, struct rule * rulep);
-static void gmtload(struct state * sp);
-static struct tm * gmtsub(const time_t * timep, int_fast32_t offset,
- struct tm * tmp, struct state * sp); // android-changed: added sp.
-static struct tm * localsub(const time_t * timep, int_fast32_t offset,
- struct tm * tmp, struct state * sp); // android-changed: added sp.
-static int increment_overflow(int * number, int delta);
-static int leaps_thru_end_of(int y) ATTRIBUTE_PURE;
-static int increment_overflow32(int_fast32_t * number, int delta);
-static int increment_overflow_time(time_t *t, int_fast32_t delta);
-static int normalize_overflow32(int_fast32_t * tensptr,
- int * unitsptr, int base);
-static int normalize_overflow(int * tensptr, int * unitsptr,
- int base);
-static void settzname(void);
-static time_t time1(struct tm * tmp,
- struct tm * (*funcp)(const time_t *,
- int_fast32_t, struct tm *, struct state *), // android-changed: added state*.
- int_fast32_t, struct state * sp); // android-changed: added sp.
-static time_t time2(struct tm * tmp,
- struct tm * (*funcp)(const time_t *,
- int_fast32_t, struct tm*, struct state *), // android-changed: added state*.
- int_fast32_t offset, int * okayp, struct state * sp); // android-changed: added sp.
-static time_t time2sub(struct tm *tmp,
- struct tm * (*funcp) (const time_t *,
- int_fast32_t, struct tm*, struct state *), // android-changed: added state*.
- int_fast32_t offset, int * okayp, int do_norm_secs, struct state * sp); // android-change: added sp.
-static struct tm * timesub(const time_t * timep, int_fast32_t offset,
- const struct state * sp, struct tm * tmp);
-static int tmcomp(const struct tm * atmp,
- const struct tm * btmp);
-static int_fast32_t transtime(int year, const struct rule * rulep,
- int_fast32_t offset)
- ATTRIBUTE_PURE;
-static int typesequiv(const struct state * sp, int a, int b);
-static int tzload(const char * name, struct state * sp,
- int doextend);
-static int tzparse(const char * name, struct state * sp,
- int lastditch);
+static struct tm *gmtsub(struct state const *, time_t const *, int_fast32_t,
+ struct tm *);
+static bool increment_overflow(int *, int);
+static bool increment_overflow_time(time_t *, int_fast32_t);
+static bool normalize_overflow32(int_fast32_t *, int *, int);
+static struct tm *timesub(time_t const *, int_fast32_t, struct state const *,
+ struct tm *);
+static bool typesequiv(struct state const *, int, int);
+static bool tzparse(char const *, struct state *, bool);
#ifdef ALL_STATE
static struct state * lclptr;
static char lcl_TZname[TZ_STRLEN_MAX + 1];
static int lcl_is_set;
-static int gmt_is_set;
char * tzname[2] = {
(char *) wildabbr,
** Thanks to Paul Eggert for noting this.
*/
-static struct tm tmGlobal;
+static struct tm tm;
#ifdef USG_COMPAT
-long timezone = 0;
-int daylight = 0;
+long timezone;
+int daylight;
#endif /* defined USG_COMPAT */
#ifdef ALTZONE
-long altzone = 0;
+long altzone;
#endif /* defined ALTZONE */
+/* Initialize *S to a value based on GMTOFF, ISDST, and ABBRIND. */
+static void
+init_ttinfo(struct ttinfo *s, int_fast32_t gmtoff, bool isdst, int abbrind)
+{
+ s->tt_gmtoff = gmtoff;
+ s->tt_isdst = isdst;
+ s->tt_abbrind = abbrind;
+ s->tt_ttisstd = false;
+ s->tt_ttisgmt = false;
+}
+
static int_fast32_t
detzcode(const char *const codep)
{
- register int_fast32_t result;
- register int i;
-
- result = (codep[0] & 0x80) ? -1 : 0;
- for (i = 0; i < 4; ++i)
- result = (result << 8) | (codep[i] & 0xff);
- return result;
+ register int_fast32_t result;
+ register int i;
+ int_fast32_t one = 1;
+ int_fast32_t halfmaxval = one << (32 - 2);
+ int_fast32_t maxval = halfmaxval - 1 + halfmaxval;
+ int_fast32_t minval = -1 - maxval;
+
+ result = codep[0] & 0x7f;
+ for (i = 1; i < 4; ++i)
+ result = (result << 8) | (codep[i] & 0xff);
+
+ if (codep[0] & 0x80) {
+ /* Do two's-complement negation even on non-two's-complement machines.
+ If the result would be minval - 1, return minval. */
+ result -= !TWOS_COMPLEMENT(int_fast32_t) && result != 0;
+ result += minval;
+ }
+ return result;
}
static int_fast64_t
detzcode64(const char *const codep)
{
- register int_fast64_t result;
- register int i;
+ register uint_fast64_t result;
+ register int i;
+ int_fast64_t one = 1;
+ int_fast64_t halfmaxval = one << (64 - 2);
+ int_fast64_t maxval = halfmaxval - 1 + halfmaxval;
+ int_fast64_t minval = -TWOS_COMPLEMENT(int_fast64_t) - maxval;
+
+ result = codep[0] & 0x7f;
+ for (i = 1; i < 8; ++i)
+ result = (result << 8) | (codep[i] & 0xff);
+
+ if (codep[0] & 0x80) {
+ /* Do two's-complement negation even on non-two's-complement machines.
+ If the result would be minval - 1, return minval. */
+ result -= !TWOS_COMPLEMENT(int_fast64_t) && result != 0;
+ result += minval;
+ }
+ return result;
+}
- result = (codep[0] & 0x80) ? -1 : 0;
- for (i = 0; i < 8; ++i)
- result = (result << 8) | (codep[i] & 0xff);
- return result;
+static void
+update_tzname_etc(struct state const *sp, struct ttinfo const *ttisp)
+{
+ tzname[ttisp->tt_isdst] = (char *) &sp->chars[ttisp->tt_abbrind];
+#ifdef USG_COMPAT
+ if (!ttisp->tt_isdst)
+ timezone = - ttisp->tt_gmtoff;
+#endif
+#ifdef ALTZONE
+ if (ttisp->tt_isdst)
+ altzone = - ttisp->tt_gmtoff;
+#endif
}
static void
settzname(void)
{
- register struct state * const sp = lclptr;
- register int i;
+ register struct state * const sp = lclptr;
+ register int i;
- tzname[0] = tzname[1] = (char *) wildabbr;
+ tzname[0] = tzname[1] = (char *) wildabbr;
#ifdef USG_COMPAT
- daylight = 0;
- timezone = 0;
+ daylight = 0;
+ timezone = 0;
#endif /* defined USG_COMPAT */
#ifdef ALTZONE
- altzone = 0;
+ altzone = 0;
#endif /* defined ALTZONE */
- if (sp == NULL) {
- tzname[0] = tzname[1] = (char *) gmt;
- return;
- }
- /*
- ** And to get the latest zone names into tzname. . .
- */
- for (i = 0; i < sp->typecnt; ++i) {
- register const struct ttinfo * const ttisp = &sp->ttis[i];
-
- tzname[ttisp->tt_isdst] = &sp->chars[ttisp->tt_abbrind];
- }
- for (i = 0; i < sp->timecnt; ++i) {
- register const struct ttinfo * const ttisp =
- &sp->ttis[
- sp->types[i]];
-
- tzname[ttisp->tt_isdst] =
- &sp->chars[ttisp->tt_abbrind];
+ if (sp == NULL) {
+ tzname[0] = tzname[1] = (char *) gmt;
+ return;
+ }
+ /*
+ ** And to get the latest zone names into tzname. . .
+ */
+ for (i = 0; i < sp->typecnt; ++i) {
+ register const struct ttinfo * const ttisp = &sp->ttis[i];
+ update_tzname_etc(sp, ttisp);
+ }
+ for (i = 0; i < sp->timecnt; ++i) {
+ register const struct ttinfo * const ttisp =
+ &sp->ttis[
+ sp->types[i]];
+ update_tzname_etc(sp, ttisp);
#ifdef USG_COMPAT
- if (ttisp->tt_isdst)
- daylight = 1;
- if (!ttisp->tt_isdst)
- timezone = -(ttisp->tt_gmtoff);
+ if (ttisp->tt_isdst)
+ daylight = 1;
#endif /* defined USG_COMPAT */
-#ifdef ALTZONE
- if (ttisp->tt_isdst)
- altzone = -(ttisp->tt_gmtoff);
-#endif /* defined ALTZONE */
- }
- /*
- ** Finally, scrub the abbreviations.
- ** First, replace bogus characters.
- */
- for (i = 0; i < sp->charcnt; ++i)
- if (strchr(TZ_ABBR_CHAR_SET, sp->chars[i]) == NULL)
- sp->chars[i] = TZ_ABBR_ERR_CHAR;
- /*
- ** Second, truncate long abbreviations.
- */
- for (i = 0; i < sp->typecnt; ++i) {
- register const struct ttinfo * const ttisp = &sp->ttis[i];
- register char * cp = &sp->chars[ttisp->tt_abbrind];
+ }
+}
- if (strlen(cp) > TZ_ABBR_MAX_LEN &&
- strcmp(cp, GRANDPARENTED) != 0)
- *(cp + TZ_ABBR_MAX_LEN) = '\0';
- }
+static void
+scrub_abbrs(struct state *sp)
+{
+ int i;
+ /*
+ ** First, replace bogus characters.
+ */
+ for (i = 0; i < sp->charcnt; ++i)
+ if (strchr(TZ_ABBR_CHAR_SET, sp->chars[i]) == NULL)
+ sp->chars[i] = TZ_ABBR_ERR_CHAR;
+ /*
+ ** Second, truncate long abbreviations.
+ */
+ for (i = 0; i < sp->typecnt; ++i) {
+ register const struct ttinfo * const ttisp = &sp->ttis[i];
+ register char * cp = &sp->chars[ttisp->tt_abbrind];
+
+ if (strlen(cp) > TZ_ABBR_MAX_LEN &&
+ strcmp(cp, GRANDPARENTED) != 0)
+ *(cp + TZ_ABBR_MAX_LEN) = '\0';
+ }
}
-static int
-differ_by_repeat(const time_t t1 __unused, const time_t t0 __unused)
+static bool
+differ_by_repeat(const time_t t1, const time_t t0)
{
if (TYPE_BIT(time_t) - TYPE_SIGNED(time_t) < SECSPERREPEAT_BITS)
return 0;
#endif
}
+/* Input buffer for data read from a compiled tz file. */
+union input_buffer {
+ /* The first part of the buffer, interpreted as a header. */
+ struct tzhead tzhead;
+
+ /* The entire buffer. */
+ char buf[2 * sizeof(struct tzhead) + 2 * sizeof (struct state)
+ + 4 * TZ_MAX_TIMES];
+};
+
+/* Local storage needed for 'tzloadbody'. */
+union local_storage {
+ /* The file name to be opened. */
+ char fullname[FILENAME_MAX + 1];
+
+ /* The results of analyzing the file's contents after it is opened. */
+ struct {
+ /* The input buffer. */
+ union input_buffer u;
+
+ /* A temporary state used for parsing a TZ string in the file. */
+ struct state st;
+ } u;
+};
+
+static int __bionic_open_tzdata(const char*);
+
+/* Load tz data from the file named NAME into *SP. Read extended
+ format if DOEXTEND. Use *LSP for temporary storage. Return 0 on
+ success, an errno value on failure. */
static int
-tzload(register const char* name, register struct state* const sp,
- register const int doextend)
+tzloadbody(char const *name, struct state *sp, bool doextend,
+ union local_storage *lsp)
{
- register const char * p;
- register int i;
- register int fid;
- register int stored;
- register int nread;
- typedef union {
- struct tzhead tzhead;
- char buf[2 * sizeof(struct tzhead) +
- 2 * sizeof *sp +
- 4 * TZ_MAX_TIMES];
- } u_t;
- union local_storage {
- /*
- ** 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];
-
- /* The main part of the storage for this function. */
- struct {
- u_t u;
- struct state st;
- } u;
- };
- //register char *fullname;
- register u_t *up;
- register union local_storage *lsp;
-#ifdef ALL_STATE
- lsp = malloc(sizeof *lsp);
- if (!lsp)
- return -1;
-#else /* !defined ALL_STATE */
- union local_storage ls;
- lsp = &ls;
-#endif /* !defined ALL_STATE */
- //fullname = lsp->fullname;
- up = &lsp->u.u;
-
- sp->goback = sp->goahead = FALSE;
-
- if (! name) {
- name = TZDEFAULT;
- if (! name)
- goto oops;
- }
+ register int i;
+ register int fid;
+ register int stored;
+ register ssize_t nread;
+#if !defined(__ANDROID__)
+ register bool doaccess;
+ register char *fullname = lsp->fullname;
+#endif
+ register union input_buffer *up = &lsp->u.u;
+ register int tzheadsize = sizeof (struct tzhead);
- int toread;
- fid = __bionic_open_tzdata(name, &toread);
- if (fid < 0)
- goto oops;
-
- nread = read(fid, up->buf, sizeof up->buf);
- if (close(fid) < 0 || nread <= 0)
- goto oops;
- for (stored = 4; stored <= 8; stored *= 2) {
- int ttisstdcnt;
- int ttisgmtcnt;
- int timecnt;
-
- ttisstdcnt = (int) detzcode(up->tzhead.tzh_ttisstdcnt);
- ttisgmtcnt = (int) detzcode(up->tzhead.tzh_ttisgmtcnt);
- sp->leapcnt = (int) detzcode(up->tzhead.tzh_leapcnt);
- sp->timecnt = (int) detzcode(up->tzhead.tzh_timecnt);
- sp->typecnt = (int) detzcode(up->tzhead.tzh_typecnt);
- sp->charcnt = (int) detzcode(up->tzhead.tzh_charcnt);
- p = up->tzhead.tzh_charcnt + sizeof up->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))
- goto oops;
- if (nread - (p - up->buf) <
- sp->timecnt * stored + /* ats */
- sp->timecnt + /* types */
- sp->typecnt * 6 + /* ttinfos */
- sp->charcnt + /* chars */
- sp->leapcnt * (stored + 4) + /* lsinfos */
- ttisstdcnt + /* ttisstds */
- ttisgmtcnt) /* ttisgmts */
- goto oops;
- timecnt = 0;
- for (i = 0; i < sp->timecnt; ++i) {
- int_fast64_t at
- = stored == 4 ? detzcode(p) : detzcode64(p);
- sp->types[i] = ((TYPE_SIGNED(time_t)
- ? time_t_min <= at
- : 0 <= at)
- && at <= time_t_max);
- if (sp->types[i]) {
- if (i && !timecnt && at != time_t_min) {
- /*
- ** Keep the earlier record, but tweak
- ** it so that it starts with the
- ** minimum time_t value.
- */
- sp->types[i - 1] = 1;
- sp->ats[timecnt++] = time_t_min;
- }
- sp->ats[timecnt++] = at;
- }
- p += stored;
- }
- timecnt = 0;
- for (i = 0; i < sp->timecnt; ++i) {
- unsigned char typ = *p++;
- if (sp->typecnt <= typ)
- goto oops;
- if (sp->types[i])
- sp->types[timecnt++] = typ;
- }
- sp->timecnt = timecnt;
- for (i = 0; i < sp->typecnt; ++i) {
- register 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)
- goto oops;
- ttisp->tt_abbrind = (unsigned char) *p++;
- if (ttisp->tt_abbrind < 0 ||
- ttisp->tt_abbrind > sp->charcnt)
- goto oops;
- }
- 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) {
- register struct lsinfo * lsisp;
-
- lsisp = &sp->lsis[i];
- lsisp->ls_trans = (stored == 4) ?
- detzcode(p) : detzcode64(p);
- p += stored;
- lsisp->ls_corr = detzcode(p);
- p += 4;
- }
- for (i = 0; i < sp->typecnt; ++i) {
- register 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)
- goto oops;
- }
- }
- for (i = 0; i < sp->typecnt; ++i) {
- register 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)
- goto oops;
- }
- }
- /*
- ** If this is an old file, we're done.
- */
- if (up->tzhead.tzh_version[0] == '\0')
- break;
- nread -= p - up->buf;
- for (i = 0; i < nread; ++i)
- up->buf[i] = p[i];
- /*
- ** If this is a signed narrow time_t system, we're done.
- */
- if (TYPE_SIGNED(time_t) && stored >= (int) sizeof(time_t))
- break;
- }
- if (doextend && nread > 2 &&
- up->buf[0] == '\n' && up->buf[nread - 1] == '\n' &&
- sp->typecnt + 2 <= TZ_MAX_TYPES) {
- struct state *ts = &lsp->u.st;
- register int result;
-
- up->buf[nread - 1] = '\0';
- result = tzparse(&up->buf[1], ts, FALSE);
- if (result == 0 && ts->typecnt == 2 &&
- sp->charcnt + ts->charcnt <= TZ_MAX_CHARS) {
- for (i = 0; i < 2; ++i)
- ts->ttis[i].tt_abbrind +=
- sp->charcnt;
- for (i = 0; i < ts->charcnt; ++i)
- sp->chars[sp->charcnt++] =
- ts->chars[i];
- i = 0;
- while (i < ts->timecnt &&
- ts->ats[i] <=
- sp->ats[sp->timecnt - 1])
- ++i;
- while (i < ts->timecnt &&
- sp->timecnt < TZ_MAX_TIMES) {
- sp->ats[sp->timecnt] =
- ts->ats[i];
- sp->types[sp->timecnt] =
- sp->typecnt +
- ts->types[i];
- ++sp->timecnt;
- ++i;
- }
- sp->ttis[sp->typecnt++] = ts->ttis[0];
- sp->ttis[sp->typecnt++] = ts->ttis[1];
- }
- }
- if (sp->timecnt > 1) {
- for (i = 1; i < sp->timecnt; ++i)
- if (typesequiv(sp, sp->types[i], sp->types[0]) &&
- differ_by_repeat(sp->ats[i], sp->ats[0])) {
- sp->goback = TRUE;
- break;
- }
- for (i = sp->timecnt - 2; i >= 0; --i)
- if (typesequiv(sp, sp->types[sp->timecnt - 1],
- sp->types[i]) &&
- differ_by_repeat(sp->ats[sp->timecnt - 1],
- sp->ats[i])) {
- sp->goahead = TRUE;
- break;
- }
- }
- /*
- ** If type 0 is is unused in transitions,
- ** it's the type to use for early times.
- */
- for (i = 0; i < sp->typecnt; ++i)
- if (sp->types[i] == 0)
- break;
- i = (i >= sp->typecnt) ? 0 : -1;
- /*
- ** Absent the above,
- ** if there are transition times
- ** and the first transition is to a daylight time
- ** find the standard type less than and closest to
- ** the type of the first transition.
- */
- if (i < 0 && sp->timecnt > 0 && sp->ttis[sp->types[0]].tt_isdst) {
- i = sp->types[0];
- while (--i >= 0)
- if (!sp->ttis[i].tt_isdst)
- break;
- }
- /*
- ** If no result yet, find the first standard type.
- ** If there is none, punt to type zero.
- */
- if (i < 0) {
- i = 0;
- while (sp->ttis[i].tt_isdst)
- if (++i >= sp->typecnt) {
- i = 0;
- break;
- }
- }
- sp->defaulttype = i;
-#ifdef ALL_STATE
- free(up);
-#endif /* defined ALL_STATE */
- return 0;
-oops:
-#ifdef ALL_STATE
- free(up);
-#endif /* defined ALL_STATE */
- return -1;
+ sp->goback = sp->goahead = false;
+
+ if (! name) {
+ name = TZDEFAULT;
+ if (! name)
+ return EINVAL;
+ }
+
+#if defined(__ANDROID__)
+ fid = __bionic_open_tzdata(name);
+#else
+ if (name[0] == ':')
+ ++name;
+ doaccess = name[0] == '/';
+ if (!doaccess) {
+ char const *p = TZDIR;
+ if (! p)
+ return EINVAL;
+ if (sizeof lsp->fullname - 1 <= strlen(p) + strlen(name))
+ return ENAMETOOLONG;
+ strcpy(fullname, p);
+ strcat(fullname, "/");
+ strcat(fullname, name);
+ /* Set doaccess if '.' (as in "../") shows up in name. */
+ if (strchr(name, '.'))
+ doaccess = true;
+ name = fullname;
+ }
+ if (doaccess && access(name, R_OK) != 0)
+ return errno;
+ fid = open(name, OPEN_MODE);
+#endif
+ if (fid < 0)
+ return errno;
+
+ nread = read(fid, up->buf, sizeof up->buf);
+ if (nread < tzheadsize) {
+ int err = nread < 0 ? errno : EINVAL;
+ close(fid);
+ return err;
+ }
+ if (close(fid) < 0)
+ return errno;
+ for (stored = 4; stored <= 8; stored *= 2) {
+ int_fast32_t ttisstdcnt = detzcode(up->tzhead.tzh_ttisstdcnt);
+ int_fast32_t ttisgmtcnt = detzcode(up->tzhead.tzh_ttisgmtcnt);
+ int_fast32_t leapcnt = detzcode(up->tzhead.tzh_leapcnt);
+ int_fast32_t timecnt = detzcode(up->tzhead.tzh_timecnt);
+ int_fast32_t typecnt = detzcode(up->tzhead.tzh_typecnt);
+ int_fast32_t charcnt = detzcode(up->tzhead.tzh_charcnt);
+ char const *p = up->buf + tzheadsize;
+ if (! (0 <= leapcnt && leapcnt < TZ_MAX_LEAPS
+ && 0 < typecnt && typecnt < TZ_MAX_TYPES
+ && 0 <= timecnt && timecnt < TZ_MAX_TIMES
+ && 0 <= charcnt && charcnt < TZ_MAX_CHARS
+ && (ttisstdcnt == typecnt || ttisstdcnt == 0)
+ && (ttisgmtcnt == typecnt || ttisgmtcnt == 0)))
+ return EINVAL;
+ if (nread
+ < (tzheadsize /* struct tzhead */
+ + timecnt * stored /* ats */
+ + timecnt /* types */
+ + typecnt * 6 /* ttinfos */
+ + charcnt /* chars */
+ + leapcnt * (stored + 4) /* lsinfos */
+ + ttisstdcnt /* ttisstds */
+ + ttisgmtcnt)) /* ttisgmts */
+ return EINVAL;
+ sp->leapcnt = leapcnt;
+ sp->timecnt = timecnt;
+ sp->typecnt = typecnt;
+ sp->charcnt = charcnt;
+
+ /* Read transitions, discarding those out of time_t range.
+ But pretend the last transition before time_t_min
+ occurred at time_t_min. */
+ timecnt = 0;
+ for (i = 0; i < sp->timecnt; ++i) {
+ int_fast64_t at
+ = stored == 4 ? detzcode(p) : detzcode64(p);
+ sp->types[i] = at <= time_t_max;
+ if (sp->types[i]) {
+ time_t attime
+ = ((TYPE_SIGNED(time_t) ? at < time_t_min : at < 0)
+ ? time_t_min : at);
+ if (timecnt && attime <= sp->ats[timecnt - 1]) {
+ if (attime < sp->ats[timecnt - 1])
+ return EINVAL;
+ sp->types[i - 1] = 0;
+ timecnt--;
+ }
+ sp->ats[timecnt++] = attime;
+ }
+ p += stored;
+ }
+
+ timecnt = 0;
+ for (i = 0; i < sp->timecnt; ++i) {
+ unsigned char typ = *p++;
+ if (sp->typecnt <= typ)
+ return EINVAL;
+ if (sp->types[i])
+ sp->types[timecnt++] = typ;
+ }
+ sp->timecnt = timecnt;
+ for (i = 0; i < sp->typecnt; ++i) {
+ register struct ttinfo * ttisp;
+ unsigned char isdst, abbrind;
+
+ ttisp = &sp->ttis[i];
+ ttisp->tt_gmtoff = detzcode(p);
+ p += 4;
+ isdst = *p++;
+ if (! (isdst < 2))
+ return EINVAL;
+ ttisp->tt_isdst = isdst;
+ abbrind = *p++;
+ if (! (abbrind < sp->charcnt))
+ return EINVAL;
+ ttisp->tt_abbrind = abbrind;
+ }
+ for (i = 0; i < sp->charcnt; ++i)
+ sp->chars[i] = *p++;
+ sp->chars[i] = '\0'; /* ensure '\0' at end */
+
+ /* Read leap seconds, discarding those out of time_t range. */
+ leapcnt = 0;
+ for (i = 0; i < sp->leapcnt; ++i) {
+ int_fast64_t tr = stored == 4 ? detzcode(p) : detzcode64(p);
+ int_fast32_t corr = detzcode(p + stored);
+ p += stored + 4;
+ if (tr <= time_t_max) {
+ time_t trans
+ = ((TYPE_SIGNED(time_t) ? tr < time_t_min : tr < 0)
+ ? time_t_min : tr);
+ if (leapcnt && trans <= sp->lsis[leapcnt - 1].ls_trans) {
+ if (trans < sp->lsis[leapcnt - 1].ls_trans)
+ return EINVAL;
+ leapcnt--;
+ }
+ sp->lsis[leapcnt].ls_trans = trans;
+ sp->lsis[leapcnt].ls_corr = corr;
+ leapcnt++;
+ }
+ }
+ sp->leapcnt = leapcnt;
+
+ for (i = 0; i < sp->typecnt; ++i) {
+ register struct ttinfo * ttisp;
+
+ ttisp = &sp->ttis[i];
+ if (ttisstdcnt == 0)
+ ttisp->tt_ttisstd = false;
+ else {
+ if (*p != true && *p != false)
+ return EINVAL;
+ ttisp->tt_ttisstd = *p++;
+ }
+ }
+ for (i = 0; i < sp->typecnt; ++i) {
+ register struct ttinfo * ttisp;
+
+ ttisp = &sp->ttis[i];
+ if (ttisgmtcnt == 0)
+ ttisp->tt_ttisgmt = false;
+ else {
+ if (*p != true && *p != false)
+ return EINVAL;
+ ttisp->tt_ttisgmt = *p++;
+ }
+ }
+ /*
+ ** If this is an old file, we're done.
+ */
+ if (up->tzhead.tzh_version[0] == '\0')
+ break;
+ nread -= p - up->buf;
+ memmove(up->buf, p, nread);
+ }
+ if (doextend && nread > 2 &&
+ up->buf[0] == '\n' && up->buf[nread - 1] == '\n' &&
+ sp->typecnt + 2 <= TZ_MAX_TYPES) {
+ struct state *ts = &lsp->u.st;
+
+ up->buf[nread - 1] = '\0';
+ if (tzparse(&up->buf[1], ts, false)
+ && ts->typecnt == 2) {
+
+ /* Attempt to reuse existing abbreviations.
+ Without this, America/Anchorage would stop
+ working after 2037 when TZ_MAX_CHARS is 50, as
+ sp->charcnt equals 42 (for LMT CAT CAWT CAPT AHST
+ AHDT YST AKDT AKST) and ts->charcnt equals 10
+ (for AKST AKDT). Reusing means sp->charcnt can
+ stay 42 in this example. */
+ int gotabbr = 0;
+ int charcnt = sp->charcnt;
+ for (i = 0; i < 2; i++) {
+ char *tsabbr = ts->chars + ts->ttis[i].tt_abbrind;
+ int j;
+ for (j = 0; j < charcnt; j++)
+ if (strcmp(sp->chars + j, tsabbr) == 0) {
+ ts->ttis[i].tt_abbrind = j;
+ gotabbr++;
+ break;
+ }
+ if (! (j < charcnt)) {
+ int tsabbrlen = strlen(tsabbr);
+ if (j + tsabbrlen < TZ_MAX_CHARS) {
+ strcpy(sp->chars + j, tsabbr);
+ charcnt = j + tsabbrlen + 1;
+ ts->ttis[i].tt_abbrind = j;
+ gotabbr++;
+ }
+ }
+ }
+ if (gotabbr == 2) {
+ sp->charcnt = charcnt;
+ for (i = 0; i < ts->timecnt; i++)
+ if (sp->ats[sp->timecnt - 1] < ts->ats[i])
+ break;
+ while (i < ts->timecnt
+ && sp->timecnt < TZ_MAX_TIMES) {
+ sp->ats[sp->timecnt] = ts->ats[i];
+ sp->types[sp->timecnt] = (sp->typecnt
+ + ts->types[i]);
+ sp->timecnt++;
+ i++;
+ }
+ sp->ttis[sp->typecnt++] = ts->ttis[0];
+ sp->ttis[sp->typecnt++] = ts->ttis[1];
+ }
+ }
+ }
+ if (sp->timecnt > 1) {
+ for (i = 1; i < sp->timecnt; ++i)
+ if (typesequiv(sp, sp->types[i], sp->types[0]) &&
+ differ_by_repeat(sp->ats[i], sp->ats[0])) {
+ sp->goback = true;
+ break;
+ }
+ for (i = sp->timecnt - 2; i >= 0; --i)
+ if (typesequiv(sp, sp->types[sp->timecnt - 1],
+ sp->types[i]) &&
+ differ_by_repeat(sp->ats[sp->timecnt - 1],
+ sp->ats[i])) {
+ sp->goahead = true;
+ break;
+ }
+ }
+ /*
+ ** If type 0 is is unused in transitions,
+ ** it's the type to use for early times.
+ */
+ for (i = 0; i < sp->timecnt; ++i)
+ if (sp->types[i] == 0)
+ break;
+ i = i < sp->timecnt ? -1 : 0;
+ /*
+ ** Absent the above,
+ ** if there are transition times
+ ** and the first transition is to a daylight time
+ ** find the standard type less than and closest to
+ ** the type of the first transition.
+ */
+ if (i < 0 && sp->timecnt > 0 && sp->ttis[sp->types[0]].tt_isdst) {
+ i = sp->types[0];
+ while (--i >= 0)
+ if (!sp->ttis[i].tt_isdst)
+ break;
+ }
+ /*
+ ** If no result yet, find the first standard type.
+ ** If there is none, punt to type zero.
+ */
+ if (i < 0) {
+ i = 0;
+ while (sp->ttis[i].tt_isdst)
+ if (++i >= sp->typecnt) {
+ i = 0;
+ break;
+ }
+ }
+ sp->defaulttype = i;
+ return 0;
}
+/* Load tz data from the file named NAME into *SP. Read extended
+ format if DOEXTEND. Return 0 on success, an errno value on failure. */
static int
-typesequiv(const struct state *const sp, const int a, const int b)
+tzload(char const *name, struct state *sp, bool doextend)
{
- register int result;
-
- if (sp == NULL ||
- a < 0 || a >= sp->typecnt ||
- b < 0 || b >= sp->typecnt)
- result = FALSE;
- else {
- register const struct ttinfo * ap = &sp->ttis[a];
- register const struct ttinfo * bp = &sp->ttis[b];
- result = ap->tt_gmtoff == bp->tt_gmtoff &&
- ap->tt_isdst == bp->tt_isdst &&
- ap->tt_ttisstd == bp->tt_ttisstd &&
- ap->tt_ttisgmt == bp->tt_ttisgmt &&
- strcmp(&sp->chars[ap->tt_abbrind],
- &sp->chars[bp->tt_abbrind]) == 0;
- }
- return result;
+#ifdef ALL_STATE
+ union local_storage *lsp = malloc(sizeof *lsp);
+ if (!lsp)
+ return errno;
+ else {
+ int err = tzloadbody(name, sp, doextend, lsp);
+ free(lsp);
+ return err;
+ }
+#else
+ union local_storage ls;
+ return tzloadbody(name, sp, doextend, &ls);
+#endif
}
-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 bool
+typesequiv(const struct state *sp, int a, int b)
+{
+ register bool result;
+
+ if (sp == NULL ||
+ a < 0 || a >= sp->typecnt ||
+ b < 0 || b >= sp->typecnt)
+ result = false;
+ else {
+ register const struct ttinfo * ap = &sp->ttis[a];
+ register const struct ttinfo * bp = &sp->ttis[b];
+ result = ap->tt_gmtoff == bp->tt_gmtoff &&
+ ap->tt_isdst == bp->tt_isdst &&
+ ap->tt_ttisstd == bp->tt_ttisstd &&
+ ap->tt_ttisgmt == bp->tt_ttisgmt &&
+ strcmp(&sp->chars[ap->tt_abbrind],
+ &sp->chars[bp->tt_abbrind]) == 0;
+ }
+ return result;
+}
+
+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
+static const int year_lengths[2] = {
+ DAYSPERNYEAR, DAYSPERLYEAR
};
/*
** character.
*/
-static const char *
-getzname(register const char * strp)
+static const char * ATTRIBUTE_PURE
+getzname(register const char *strp)
{
- register char c;
+ register char c;
- while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' &&
- c != '+')
- ++strp;
- return strp;
+ while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' &&
+ c != '+')
+ ++strp;
+ return strp;
}
/*
** We don't do any checking here; checking is done later in common-case code.
*/
-static const char *
+static const char * ATTRIBUTE_PURE
getqzname(register const char *strp, const int delim)
{
- register int c;
+ register int c;
- while ((c = *strp) != '\0' && c != delim)
- ++strp;
- return strp;
+ while ((c = *strp) != '\0' && c != delim)
+ ++strp;
+ return strp;
}
/*
*/
static const char *
-getnum(register const char * strp, int * const nump, const int min, const int max)
+getnum(register const char *strp, int *const nump, const int min, const int max)
{
- register char c;
- register 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;
+ register char c;
+ register 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;
}
/*
static const char *
getsecs(register const char *strp, int_fast32_t *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 * (int_fast32_t) 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;
+ 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 * (int_fast32_t) 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;
}
/*
static const char *
getoffset(register const char *strp, int_fast32_t *const offsetp)
{
- register 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;
+ register bool neg = false;
+
+ if (*strp == '-') {
+ neg = true;
+ ++strp;
+ } else if (*strp == '+')
+ ++strp;
+ strp = getsecs(strp, offsetp);
+ if (strp == NULL)
+ return NULL; /* illegal time */
+ if (neg)
+ *offsetp = -*offsetp;
+ return strp;
}
/*
*/
static const char *
-getrule(const char * strp, register struct rule * const rulep)
+getrule(const char *strp, register 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 = getoffset(strp, &rulep->r_time);
- } else rulep->r_time = 2 * SECSPERHOUR; /* default = 2:00:00 */
- return strp;
+ 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 = getoffset(strp, &rulep->r_time);
+ } else rulep->r_time = 2 * SECSPERHOUR; /* default = 2:00:00 */
+ return strp;
}
/*
** effect, calculate the year-relative time that rule takes effect.
*/
-static int_fast32_t
+static int_fast32_t ATTRIBUTE_PURE
transtime(const int year, register const struct rule *const rulep,
const int_fast32_t offset)
{
- register int leapyear;
+ register bool leapyear;
register int_fast32_t value;
register int i;
int d, m1, yy0, yy1, yy2, dow;
** appropriate.
*/
+static bool
+tzparse(const char *name, struct state *sp, bool lastditch)
+{
+ const char * stdname;
+ const char * dstname;
+ size_t stdlen;
+ size_t dstlen;
+ size_t charcnt;
+ int_fast32_t stdoffset;
+ int_fast32_t dstoffset;
+ register char * cp;
+ register bool load_ok;
+
+ stdname = name;
+ if (lastditch) {
+ stdlen = sizeof gmt - 1;
+ name += stdlen;
+ stdoffset = 0;
+ } else {
+ if (*name == '<') {
+ name++;
+ stdname = name;
+ name = getqzname(name, '>');
+ if (*name != '>')
+ return false;
+ stdlen = name - stdname;
+ name++;
+ } else {
+ name = getzname(name);
+ stdlen = name - stdname;
+ }
+ if (!stdlen)
+ return false;
+ name = getoffset(name, &stdoffset);
+ if (name == NULL)
+ return false;
+ }
+ charcnt = stdlen + 1;
+ if (sizeof sp->chars < charcnt)
+ return false;
+ load_ok = tzload(TZDEFRULES, sp, false) == 0;
+ if (!load_ok)
+ sp->leapcnt = 0; /* so, we're off a little */
+ if (*name != '\0') {
+ if (*name == '<') {
+ dstname = ++name;
+ name = getqzname(name, '>');
+ if (*name != '>')
+ return false;
+ dstlen = name - dstname;
+ name++;
+ } else {
+ dstname = name;
+ name = getzname(name);
+ dstlen = name - dstname; /* length of DST zone name */
+ }
+ if (!dstlen)
+ return false;
+ charcnt += dstlen + 1;
+ if (sizeof sp->chars < charcnt)
+ return false;
+ if (*name != '\0' && *name != ',' && *name != ';') {
+ name = getoffset(name, &dstoffset);
+ if (name == NULL)
+ return false;
+ } else dstoffset = stdoffset - SECSPERHOUR;
+ if (*name == '\0' && !load_ok)
+ name = TZDEFRULESTRING;
+ if (*name == ',' || *name == ';') {
+ struct rule start;
+ struct rule end;
+ register int year;
+ register int yearlim;
+ register int timecnt;
+ time_t janfirst;
+
+ ++name;
+ if ((name = getrule(name, &start)) == NULL)
+ return false;
+ if (*name++ != ',')
+ return false;
+ if ((name = getrule(name, &end)) == NULL)
+ return false;
+ if (*name != '\0')
+ return false;
+ sp->typecnt = 2; /* standard time and DST */
+ /*
+ ** Two transitions per year, from EPOCH_YEAR forward.
+ */
+ init_ttinfo(&sp->ttis[0], -dstoffset, true, stdlen + 1);
+ init_ttinfo(&sp->ttis[1], -stdoffset, false, 0);
+ sp->defaulttype = 0;
+ timecnt = 0;
+ janfirst = 0;
+ yearlim = EPOCH_YEAR + YEARSPERREPEAT;
+ for (year = EPOCH_YEAR; year < yearlim; year++) {
+ int_fast32_t
+ starttime = transtime(year, &start, stdoffset),
+ endtime = transtime(year, &end, dstoffset);
+ int_fast32_t
+ yearsecs = (year_lengths[isleap(year)]
+ * SECSPERDAY);
+ bool reversed = endtime < starttime;
+ if (reversed) {
+ int_fast32_t swap = starttime;
+ starttime = endtime;
+ endtime = swap;
+ }
+ if (reversed
+ || (starttime < endtime
+ && (endtime - starttime
+ < (yearsecs
+ + (stdoffset - dstoffset))))) {
+ if (TZ_MAX_TIMES - 2 < timecnt)
+ break;
+ yearlim = year + YEARSPERREPEAT + 1;
+ sp->ats[timecnt] = janfirst;
+ if (increment_overflow_time
+ (&sp->ats[timecnt], starttime))
+ break;
+ sp->types[timecnt++] = reversed;
+ sp->ats[timecnt] = janfirst;
+ if (increment_overflow_time
+ (&sp->ats[timecnt], endtime))
+ break;
+ sp->types[timecnt++] = !reversed;
+ }
+ if (increment_overflow_time(&janfirst, yearsecs))
+ break;
+ }
+ sp->timecnt = timecnt;
+ if (!timecnt)
+ sp->typecnt = 1; /* Perpetual DST. */
+ } else {
+ register int_fast32_t theirstdoffset;
+ register int_fast32_t theirdstoffset;
+ register int_fast32_t theiroffset;
+ register bool isdst;
+ register int i;
+ register int j;
+
+ if (*name != '\0')
+ return false;
+ /*
+ ** 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.
+ */
+ init_ttinfo(&sp->ttis[0], -stdoffset, false, 0);
+ init_ttinfo(&sp->ttis[1], -dstoffset, true, stdlen + 1);
+ sp->typecnt = 2;
+ sp->defaulttype = 0;
+ }
+ } else {
+ dstlen = 0;
+ sp->typecnt = 1; /* only standard time */
+ sp->timecnt = 0;
+ init_ttinfo(&sp->ttis[0], -stdoffset, false, 0);
+ sp->defaulttype = 0;
+ }
+ sp->charcnt = charcnt;
+ cp = sp->chars;
+ memcpy(cp, stdname, stdlen);
+ cp += stdlen;
+ *cp++ = '\0';
+ if (dstlen != 0) {
+ memcpy(cp, dstname, dstlen);
+ *(cp + dstlen) = '\0';
+ }
+ return true;
+}
+
+static void
+gmtload(struct state *const sp)
+{
+ if (tzload(gmt, sp, true) != 0)
+ tzparse(gmt, sp, true);
+}
+
+/* Initialize *SP to a value appropriate for the TZ setting NAME.
+ Return 0 on success, an errno value on failure. */
static int
-tzparse(const char * name, register struct state * const sp,
- const int lastditch)
+zoneinit(struct state *sp, char const *name)
{
- const char * stdname;
- const char * dstname;
- size_t stdlen;
- size_t dstlen;
- int_fast32_t stdoffset;
- int_fast32_t dstoffset;
- register char * cp;
- register int load_result;
- static struct ttinfo zttinfo;
-
- stdname = name;
- if (lastditch) {
- stdlen = strlen(name); /* length of standard zone name */
- name += stdlen;
- if (stdlen >= sizeof sp->chars)
- stdlen = (sizeof sp->chars) - 1;
- stdoffset = 0;
- } else {
- if (*name == '<') {
- name++;
- stdname = name;
- name = getqzname(name, '>');
- if (*name != '>')
- return (-1);
- stdlen = name - stdname;
- name++;
- } else {
- name = getzname(name);
- stdlen = name - stdname;
- }
- if (*name == '\0')
- return -1;
- name = getoffset(name, &stdoffset);
- if (name == NULL)
- return -1;
- }
- load_result = tzload(TZDEFRULES, sp, FALSE);
- if (load_result != 0)
- sp->leapcnt = 0; /* so, we're off a little */
- if (*name != '\0') {
- if (*name == '<') {
- dstname = ++name;
- name = getqzname(name, '>');
- if (*name != '>')
- return -1;
- dstlen = name - dstname;
- name++;
- } else {
- dstname = name;
- name = getzname(name);
- dstlen = name - dstname; /* length of DST zone name */
- }
- 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;
- register int year;
- register int yearlim;
- register int timecnt;
- time_t janfirst;
-
- ++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 forward.
- */
- sp->ttis[0] = sp->ttis[1] = zttinfo;
- 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;
- sp->defaulttype = 0;
- timecnt = 0;
- janfirst = 0;
- yearlim = EPOCH_YEAR + YEARSPERREPEAT;
- for (year = EPOCH_YEAR; year < yearlim; year++) {
- int_fast32_t
- starttime = transtime(year, &start, stdoffset),
- endtime = transtime(year, &end, dstoffset);
- int_fast32_t
- yearsecs = (year_lengths[isleap(year)]
- * SECSPERDAY);
- int reversed = endtime < starttime;
- if (reversed) {
- int_fast32_t swap = starttime;
- starttime = endtime;
- endtime = swap;
- }
- if (reversed
- || (starttime < endtime
- && (endtime - starttime
- < (yearsecs
- + (stdoffset - dstoffset))))) {
- if (TZ_MAX_TIMES - 2 < timecnt)
- break;
- yearlim = year + YEARSPERREPEAT + 1;
- sp->ats[timecnt] = janfirst;
- if (increment_overflow_time
- (&sp->ats[timecnt], starttime))
- break;
- sp->types[timecnt++] = reversed;
- sp->ats[timecnt] = janfirst;
- if (increment_overflow_time
- (&sp->ats[timecnt], endtime))
- break;
- sp->types[timecnt++] = !reversed;
- }
- if (increment_overflow_time(&janfirst, yearsecs))
- break;
- }
- sp->timecnt = timecnt;
- if (!timecnt)
- sp->typecnt = 1; /* Perpetual DST. */
- } else {
- register int_fast32_t theirstdoffset;
- register int_fast32_t theirdstoffset;
- register int_fast32_t theiroffset;
- register int isdst;
- register int i;
- register 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.
- */
- sp->ttis[0] = sp->ttis[1] = zttinfo;
- 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;
- sp->defaulttype = 0;
- }
- } else {
- dstlen = 0;
- sp->typecnt = 1; /* only standard time */
- sp->timecnt = 0;
- sp->ttis[0] = zttinfo;
- sp->ttis[0].tt_gmtoff = -stdoffset;
- sp->ttis[0].tt_isdst = 0;
- sp->ttis[0].tt_abbrind = 0;
- sp->defaulttype = 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';
- }
+ if (name && ! name[0]) {
+ /*
+ ** User wants it fast rather than right.
+ */
+ sp->leapcnt = 0; /* so, we're off a little */
+ sp->timecnt = 0;
+ sp->typecnt = 0;
+ sp->charcnt = 0;
+ sp->goback = sp->goahead = false;
+ init_ttinfo(&sp->ttis[0], 0, false, 0);
+ strcpy(sp->chars, gmt);
+ sp->defaulttype = 0;
return 0;
+ } else {
+ int err = tzload(name, sp, true);
+ if (err != 0 && name && name[0] != ':' && tzparse(name, sp, false))
+ err = 0;
+ if (err == 0)
+ scrub_abbrs(sp);
+ return err;
+ }
}
static void
-gmtload(struct state * const sp)
+tzsetlcl(char const *name)
{
- if (tzload(gmt, sp, TRUE) != 0)
- (void) tzparse(gmt, sp, TRUE);
+ struct state *sp = lclptr;
+ int lcl = name ? strlen(name) < sizeof lcl_TZname : -1;
+ if (lcl < 0
+ ? lcl_is_set < 0
+ : 0 < lcl_is_set && strcmp(lcl_TZname, name) == 0)
+ return;
+#ifdef ALL_STATE
+ if (! sp)
+ lclptr = sp = malloc(sizeof *lclptr);
+#endif /* defined ALL_STATE */
+ if (sp) {
+ if (zoneinit(sp, name) != 0)
+ zoneinit(sp, "");
+ if (0 < lcl)
+ strcpy(lcl_TZname, name);
+ }
+ settzname();
+ lcl_is_set = lcl;
}
-#ifndef STD_INSPIRED
-/*
-** A non-static declaration of tzsetwall in a system header file
-** may cause a warning about this upcoming static declaration...
-*/
-static
-#endif /* !defined STD_INSPIRED */
+#ifdef STD_INSPIRED
void
tzsetwall(void)
{
- if (lcl_is_set < 0)
- return;
- lcl_is_set = -1;
-
-#ifdef ALL_STATE
- if (lclptr == NULL) {
- lclptr = malloc(sizeof *lclptr);
- if (lclptr == NULL) {
- settzname(); /* all we can do */
- return;
- }
- }
-#endif /* defined ALL_STATE */
- if (tzload(NULL, lclptr, TRUE) != 0)
- gmtload(lclptr);
- settzname();
+ if (lock() != 0)
+ return;
+ tzsetlcl(NULL);
+ unlock();
}
+#endif
-#include <stdbool.h>
+#if defined(__ANDROID__)
#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
#include <sys/_system_properties.h> // For __system_property_serial.
+#endif
static void
-tzset_locked(void)
+tzset_unlocked(void)
{
- register const char * name;
-
- name = getenv("TZ");
+#if defined(__ANDROID__)
+ const char * name = getenv("TZ");
- // try the "persist.sys.timezone" system property first
- if (name == NULL) {
- static const prop_info *pi;
+ // Try the "persist.sys.timezone" system property.
+ if (name == NULL) {
+ static const prop_info *pi;
- if (!pi) {
- pi = __system_property_find("persist.sys.timezone");
- }
- if (pi) {
- static char buf[PROP_VALUE_MAX];
- static uint32_t s = -1;
- static bool ok = false;
- uint32_t serial;
-
- serial = __system_property_serial(pi);
- if (serial != s) {
- ok = __system_property_read(pi, 0, buf) > 0;
- s = serial;
- }
- if (ok) {
- name = buf;
- }
- }
+ if (!pi) {
+ pi = __system_property_find("persist.sys.timezone");
}
-
- if (name == NULL) {
- tzsetwall();
- return;
+ if (pi) {
+ static char buf[PROP_VALUE_MAX];
+ static uint32_t s = -1;
+ static bool ok = false;
+ uint32_t serial = __system_property_serial(pi);
+ if (serial != s) {
+ ok = __system_property_read(pi, 0, buf) > 0;
+ s = serial;
+ }
+ if (ok) {
+ name = buf;
+ }
}
+ }
+
+ tzsetlcl(name);
+#else
+ tzsetlcl(getenv("TZ"));
+#endif
+}
- 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);
+void
+tzset(void)
+{
+ if (lock() != 0)
+ return;
+ tzset_unlocked();
+ unlock();
+}
+static void
+gmtcheck(void)
+{
+ static bool gmt_is_set;
+ if (lock() != 0)
+ return;
+ if (! gmt_is_set) {
#ifdef ALL_STATE
- if (lclptr == NULL) {
- lclptr = malloc(sizeof *lclptr);
- if (lclptr == NULL) {
- settzname(); /* all we can do */
- return;
- }
+ gmtptr = malloc(sizeof *gmtptr);
+#endif
+ if (gmtptr)
+ gmtload(gmtptr);
+ gmt_is_set = true;
+ }
+ unlock();
+}
+
+#if NETBSD_INSPIRED
+
+timezone_t
+tzalloc(char const *name)
+{
+ timezone_t sp = malloc(sizeof *sp);
+ if (sp) {
+ int err = zoneinit(sp, name);
+ if (err != 0) {
+ free(sp);
+ errno = err;
+ return NULL;
}
-#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);
- lclptr->defaulttype = 0;
- } else if (tzload(name, lclptr, TRUE) != 0)
- if (name[0] == ':' || tzparse(name, lclptr, FALSE) != 0)
- (void) gmtload(lclptr);
- settzname();
+ }
+ return sp;
}
void
-tzset(void)
+tzfree(timezone_t sp)
{
- _tzLock();
- tzset_locked();
- _tzUnlock();
+ free(sp);
}
/*
+** NetBSD 6.1.4 has ctime_rz, but omit it because POSIX says ctime and
+** ctime_r are obsolescent and have potential security problems that
+** ctime_rz would share. Callers can instead use localtime_rz + strftime.
+**
+** NetBSD 6.1.4 has tzgetname, but omit it because it doesn't work
+** in zones with three or more time zone abbreviations.
+** Callers can instead use localtime_rz + strftime.
+*/
+
+#endif
+
+/*
** 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--
+** 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.
+** If successful and SETNAME is nonzero,
+** set the applicable parts of tzname, timezone and altzone;
+** however, it's OK to omit this step if the time zone is POSIX-compatible,
+** since in that case tzset should have already done this step correctly.
+** SETNAME's type is intfast32_t for compatibility with gmtsub,
+** but it is actually a boolean and its value should be 0 or 1.
*/
/*ARGSUSED*/
static struct tm *
-localsub(const time_t * const timep, const int_fast32_t offset,
- struct tm * const tmp, struct state * sp) // android-changed: added sp.
+localsub(struct state const *sp, time_t const *timep, int_fast32_t setname,
+ struct tm *const tmp)
{
- register const struct ttinfo * ttisp;
- register int i;
- register struct tm * result;
- const time_t t = *timep;
-
- // BEGIN android-changed: support user-supplied sp.
- if (sp == NULL) {
- sp = lclptr;
- }
- // END android-changed
- if (sp == NULL)
- return gmtsub(timep, offset, tmp, sp); // android-changed: added sp.
- if ((sp->goback && t < sp->ats[0]) ||
- (sp->goahead && t > sp->ats[sp->timecnt - 1])) {
- time_t newt = t;
- register time_t seconds;
- register time_t years;
-
- if (t < sp->ats[0])
- seconds = sp->ats[0] - t;
- else seconds = t - sp->ats[sp->timecnt - 1];
- --seconds;
- years = (seconds / SECSPERREPEAT + 1) * YEARSPERREPEAT;
- seconds = years * AVGSECSPERYEAR;
- if (t < sp->ats[0])
- newt += seconds;
- else newt -= seconds;
- if (newt < sp->ats[0] ||
- newt > sp->ats[sp->timecnt - 1])
- return NULL; /* "cannot happen" */
- result = localsub(&newt, offset, tmp, sp); // android-changed: added sp.
- if (result == tmp) {
- register time_t newy;
-
- newy = tmp->tm_year;
- if (t < sp->ats[0])
- newy -= years;
- else newy += years;
- tmp->tm_year = newy;
- if (tmp->tm_year != newy)
- return NULL;
- }
- return result;
- }
- if (sp->timecnt == 0 || t < sp->ats[0]) {
- i = sp->defaulttype;
- } else {
- register int lo = 1;
- register int hi = sp->timecnt;
-
- while (lo < hi) {
- register int mid = (lo + hi) >> 1;
-
- if (t < sp->ats[mid])
- hi = mid;
- else lo = mid + 1;
- }
- i = (int) sp->types[lo - 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);
- */
- result = timesub(&t, ttisp->tt_gmtoff, sp, tmp);
- tmp->tm_isdst = ttisp->tt_isdst;
- tzname[tmp->tm_isdst] = &sp->chars[ttisp->tt_abbrind];
+ register const struct ttinfo * ttisp;
+ register int i;
+ register struct tm * result;
+ const time_t t = *timep;
+
+ if (sp == NULL) {
+ /* Don't bother to set tzname etc.; tzset has already done it. */
+ return gmtsub(gmtptr, timep, 0, tmp);
+ }
+ if ((sp->goback && t < sp->ats[0]) ||
+ (sp->goahead && t > sp->ats[sp->timecnt - 1])) {
+ time_t newt = t;
+ register time_t seconds;
+ register time_t years;
+
+ if (t < sp->ats[0])
+ seconds = sp->ats[0] - t;
+ else seconds = t - sp->ats[sp->timecnt - 1];
+ --seconds;
+ years = (seconds / SECSPERREPEAT + 1) * YEARSPERREPEAT;
+ seconds = years * AVGSECSPERYEAR;
+ if (t < sp->ats[0])
+ newt += seconds;
+ else newt -= seconds;
+ if (newt < sp->ats[0] ||
+ newt > sp->ats[sp->timecnt - 1])
+ return NULL; /* "cannot happen" */
+ result = localsub(sp, &newt, setname, tmp);
+ if (result) {
+ register int_fast64_t newy;
+
+ newy = result->tm_year;
+ if (t < sp->ats[0])
+ newy -= years;
+ else newy += years;
+ if (! (INT_MIN <= newy && newy <= INT_MAX))
+ return NULL;
+ result->tm_year = newy;
+ }
+ return result;
+ }
+ if (sp->timecnt == 0 || t < sp->ats[0]) {
+ i = sp->defaulttype;
+ } else {
+ register int lo = 1;
+ register int hi = sp->timecnt;
+
+ while (lo < hi) {
+ register int mid = (lo + hi) >> 1;
+
+ if (t < sp->ats[mid])
+ hi = mid;
+ else lo = mid + 1;
+ }
+ i = (int) sp->types[lo - 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);
+ */
+ result = timesub(&t, ttisp->tt_gmtoff, sp, tmp);
+ if (result) {
+ result->tm_isdst = ttisp->tt_isdst;
#ifdef TM_ZONE
- tmp->TM_ZONE = &sp->chars[ttisp->tt_abbrind];
+ result->TM_ZONE = (char *) &sp->chars[ttisp->tt_abbrind];
#endif /* defined TM_ZONE */
- return result;
+ if (setname)
+ update_tzname_etc(sp, ttisp);
+ }
+ return result;
}
+#if NETBSD_INSPIRED
+
struct tm *
-localtime(const time_t * const timep)
+localtime_rz(struct state *sp, time_t const *timep, struct tm *tmp)
{
- return localtime_r(timep, &tmGlobal);
+ return localsub(sp, timep, 0, tmp);
}
-/*
-** Re-entrant version of localtime.
-*/
+#endif
-struct tm *
-localtime_r(const time_t * const timep, struct tm * tmp)
+static struct tm *
+localtime_tzset(time_t const *timep, struct tm *tmp, bool setname)
{
- struct tm* result;
+ int err = lock();
+ if (err) {
+ errno = err;
+ return NULL;
+ }
+ if (setname || !lcl_is_set)
+ tzset_unlocked();
+ tmp = localsub(lclptr, timep, setname, tmp);
+ unlock();
+ return tmp;
+}
- _tzLock();
- tzset_locked();
- result = localsub(timep, 0L, tmp, NULL); // android-changed: extra parameter.
- _tzUnlock();
+struct tm *
+localtime(const time_t *timep)
+{
+ return localtime_tzset(timep, &tm, true);
+}
- return result;
+struct tm *
+localtime_r(const time_t *timep, struct tm *tmp)
+{
+ return localtime_tzset(timep, tmp, false);
}
/*
*/
static struct tm *
-gmtsub(const time_t * const timep, const int_fast32_t offset,
- struct tm *const tmp, struct state * sp __unused) // android-changed: added sp.
+gmtsub(struct state const *sp, time_t const *timep, int_fast32_t offset,
+ struct tm *tmp)
{
- register struct tm * result;
+ register struct tm * result;
- if (!gmt_is_set) {
-#ifdef ALL_STATE
- gmtptr = malloc(sizeof *gmtptr);
- gmt_is_set = gmtptr != NULL;
-#else
- gmt_is_set = TRUE;
-#endif /* defined ALL_STATE */
- if (gmt_is_set)
- gmtload(gmtptr);
- }
- result = timesub(timep, offset, gmtptr, tmp);
+ result = timesub(timep, offset, gmtptr, tmp);
#ifdef TM_ZONE
- /*
- ** Could get fancy here and deliver something such as
- ** "UT+xxxx" or "UT-xxxx" if offset is non-zero,
- ** but this is no time for a treasure hunt.
- */
- tmp->TM_ZONE = offset ? wildabbr : gmtptr ? gmtptr->chars : gmt;
+ /*
+ ** Could get fancy here and deliver something such as
+ ** "UT+xxxx" or "UT-xxxx" if offset is non-zero,
+ ** but this is no time for a treasure hunt.
+ */
+ tmp->TM_ZONE = ((char *)
+ (offset ? wildabbr : gmtptr ? gmtptr->chars : gmt));
#endif /* defined TM_ZONE */
- return result;
-}
-
-struct tm *
-gmtime(const time_t * const timep)
-{
- return gmtime_r(timep, &tmGlobal);
+ return result;
}
/*
*/
struct tm *
-gmtime_r(const time_t * const timep, struct tm * tmp)
+gmtime_r(const time_t *timep, struct tm *tmp)
{
- struct tm* result;
-
- _tzLock();
- result = gmtsub(timep, 0L, tmp, NULL); // android-changed: extra parameter.
- _tzUnlock();
+ gmtcheck();
+ return gmtsub(gmtptr, timep, 0, tmp);
+}
- return result;
+struct tm *
+gmtime(const time_t *timep)
+{
+ return gmtime_r(timep, &tm);
}
#ifdef STD_INSPIRED
struct tm *
-offtime(const time_t *const timep, const long offset)
+offtime(const time_t *timep, long offset)
{
- return gmtsub(timep, offset, &tmGlobal, NULL); // android-changed: extra parameter.
+ gmtcheck();
+ return gmtsub(gmtptr, timep, offset, &tm);
}
#endif /* defined STD_INSPIRED */
** where, to make the math easy, the answer for year zero is defined as zero.
*/
-static int
+static int ATTRIBUTE_PURE
leaps_thru_end_of(register const int y)
{
- return (y >= 0) ? (y / 4 - y / 100 + y / 400) :
- -(leaps_thru_end_of(-(y + 1)) + 1);
+ return (y >= 0) ? (y / 4 - y / 100 + y / 400) :
+ -(leaps_thru_end_of(-(y + 1)) + 1);
}
static struct tm *
-timesub(const time_t *const timep, const int_fast32_t offset,
- register const struct state *const sp,
- register struct tm *const tmp)
+timesub(const time_t *timep, int_fast32_t offset,
+ const struct state *sp, struct tm *tmp)
{
- register const struct lsinfo * lp;
- register time_t tdays;
- register int idays; /* unsigned would be so 2003 */
- register int_fast64_t rem;
- int y;
- register const int * ip;
- register int_fast64_t corr;
- register int hit;
- register int i;
-
- corr = 0;
- hit = 0;
- i = (sp == NULL) ? 0 : sp->leapcnt;
- 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;
- }
- }
- y = EPOCH_YEAR;
- tdays = *timep / SECSPERDAY;
- rem = *timep - tdays * SECSPERDAY;
- while (tdays < 0 || tdays >= year_lengths[isleap(y)]) {
- int newy;
- register time_t tdelta;
- register int idelta;
- register int leapdays;
-
- tdelta = tdays / DAYSPERLYEAR;
- if (! ((! TYPE_SIGNED(time_t) || INT_MIN <= tdelta)
- && tdelta <= INT_MAX))
- return NULL;
- idelta = tdelta;
- if (idelta == 0)
- idelta = (tdays < 0) ? -1 : 1;
- newy = y;
- if (increment_overflow(&newy, idelta))
- return NULL;
- leapdays = leaps_thru_end_of(newy - 1) -
- leaps_thru_end_of(y - 1);
- tdays -= ((time_t) newy - y) * DAYSPERNYEAR;
- tdays -= leapdays;
- y = newy;
- }
- {
- register int_fast32_t seconds;
-
- seconds = tdays * SECSPERDAY;
- tdays = seconds / SECSPERDAY;
- rem += seconds - tdays * SECSPERDAY;
- }
- /*
- ** Given the range, we can now fearlessly cast...
- */
- idays = tdays;
- rem += offset - corr;
- while (rem < 0) {
- rem += SECSPERDAY;
- --idays;
- }
- while (rem >= SECSPERDAY) {
- rem -= SECSPERDAY;
- ++idays;
- }
- while (idays < 0) {
- if (increment_overflow(&y, -1))
- return NULL;
- idays += year_lengths[isleap(y)];
- }
- while (idays >= year_lengths[isleap(y)]) {
- idays -= year_lengths[isleap(y)];
- if (increment_overflow(&y, 1))
- return NULL;
- }
- tmp->tm_year = y;
- if (increment_overflow(&tmp->tm_year, -TM_YEAR_BASE))
- return NULL;
- tmp->tm_yday = idays;
- /*
- ** The "extra" mods below avoid overflow problems.
- */
- tmp->tm_wday = EPOCH_WDAY +
- ((y - EPOCH_YEAR) % DAYSPERWEEK) *
- (DAYSPERNYEAR % DAYSPERWEEK) +
- leaps_thru_end_of(y - 1) -
- leaps_thru_end_of(EPOCH_YEAR - 1) +
- idays;
- tmp->tm_wday %= DAYSPERWEEK;
- if (tmp->tm_wday < 0)
- tmp->tm_wday += DAYSPERWEEK;
- tmp->tm_hour = (int) (rem / SECSPERHOUR);
- 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;
- ip = mon_lengths[isleap(y)];
- for (tmp->tm_mon = 0; idays >= ip[tmp->tm_mon]; ++(tmp->tm_mon))
- idays -= ip[tmp->tm_mon];
- tmp->tm_mday = (int) (idays + 1);
- tmp->tm_isdst = 0;
+ register const struct lsinfo * lp;
+ register time_t tdays;
+ register int idays; /* unsigned would be so 2003 */
+ register int_fast64_t rem;
+ int y;
+ register const int * ip;
+ register int_fast64_t corr;
+ register bool hit;
+ register int i;
+
+ corr = 0;
+ hit = false;
+ i = (sp == NULL) ? 0 : sp->leapcnt;
+ 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;
+ }
+ }
+ y = EPOCH_YEAR;
+ tdays = *timep / SECSPERDAY;
+ rem = *timep % SECSPERDAY;
+ while (tdays < 0 || tdays >= year_lengths[isleap(y)]) {
+ int newy;
+ register time_t tdelta;
+ register int idelta;
+ register int leapdays;
+
+ tdelta = tdays / DAYSPERLYEAR;
+ if (! ((! TYPE_SIGNED(time_t) || INT_MIN <= tdelta)
+ && tdelta <= INT_MAX))
+ goto out_of_range;
+ idelta = tdelta;
+ if (idelta == 0)
+ idelta = (tdays < 0) ? -1 : 1;
+ newy = y;
+ if (increment_overflow(&newy, idelta))
+ goto out_of_range;
+ leapdays = leaps_thru_end_of(newy - 1) -
+ leaps_thru_end_of(y - 1);
+ tdays -= ((time_t) newy - y) * DAYSPERNYEAR;
+ tdays -= leapdays;
+ y = newy;
+ }
+ /*
+ ** Given the range, we can now fearlessly cast...
+ */
+ idays = tdays;
+ rem += offset - corr;
+ while (rem < 0) {
+ rem += SECSPERDAY;
+ --idays;
+ }
+ while (rem >= SECSPERDAY) {
+ rem -= SECSPERDAY;
+ ++idays;
+ }
+ while (idays < 0) {
+ if (increment_overflow(&y, -1))
+ goto out_of_range;
+ idays += year_lengths[isleap(y)];
+ }
+ while (idays >= year_lengths[isleap(y)]) {
+ idays -= year_lengths[isleap(y)];
+ if (increment_overflow(&y, 1))
+ goto out_of_range;
+ }
+ tmp->tm_year = y;
+ if (increment_overflow(&tmp->tm_year, -TM_YEAR_BASE))
+ goto out_of_range;
+ tmp->tm_yday = idays;
+ /*
+ ** The "extra" mods below avoid overflow problems.
+ */
+ tmp->tm_wday = EPOCH_WDAY +
+ ((y - EPOCH_YEAR) % DAYSPERWEEK) *
+ (DAYSPERNYEAR % DAYSPERWEEK) +
+ leaps_thru_end_of(y - 1) -
+ leaps_thru_end_of(EPOCH_YEAR - 1) +
+ idays;
+ tmp->tm_wday %= DAYSPERWEEK;
+ if (tmp->tm_wday < 0)
+ tmp->tm_wday += DAYSPERWEEK;
+ tmp->tm_hour = (int) (rem / SECSPERHOUR);
+ 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;
+ ip = mon_lengths[isleap(y)];
+ for (tmp->tm_mon = 0; idays >= ip[tmp->tm_mon]; ++(tmp->tm_mon))
+ idays -= ip[tmp->tm_mon];
+ tmp->tm_mday = (int) (idays + 1);
+ tmp->tm_isdst = 0;
#ifdef TM_GMTOFF
- tmp->TM_GMTOFF = offset;
+ tmp->TM_GMTOFF = offset;
#endif /* defined TM_GMTOFF */
- return tmp;
+ return tmp;
+
+ out_of_range:
+ errno = EOVERFLOW;
+ return NULL;
}
char *
-ctime(const time_t * const timep)
+ctime(const time_t *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))
+** 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));
+ struct tm *tmp = localtime(timep);
+ return tmp ? asctime(tmp) : NULL;
}
char *
-ctime_r(const time_t * const timep, char * buf)
+ctime_r(const time_t *timep, char *buf)
{
- struct tm mytm;
-
- return asctime_r(localtime_r(timep, &mytm), buf);
+ struct tm mytm;
+ struct tm *tmp = localtime_r(timep, &mytm);
+ return tmp ? asctime_r(tmp, buf) : NULL;
}
/*
** 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.
-** 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).
+** 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.
+** 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)
+#define WRONG (-1)
#endif /* !defined WRONG */
/*
** Normalize logic courtesy Paul Eggert.
*/
-static int
-increment_overflow(int *const ip, int j)
+static bool
+increment_overflow(int *ip, int j)
{
- register int const i = *ip;
-
- /*
- ** If i >= 0 there can only be overflow if i + j > INT_MAX
- ** or if j > INT_MAX - i; given i >= 0, INT_MAX - i cannot overflow.
- ** If i < 0 there can only be overflow if i + j < INT_MIN
- ** or if j < INT_MIN - i; given i < 0, INT_MIN - i cannot overflow.
- */
- if ((i >= 0) ? (j > INT_MAX - i) : (j < INT_MIN - i))
- return TRUE;
- *ip += j;
- return FALSE;
+ register int const i = *ip;
+
+ /*
+ ** If i >= 0 there can only be overflow if i + j > INT_MAX
+ ** or if j > INT_MAX - i; given i >= 0, INT_MAX - i cannot overflow.
+ ** If i < 0 there can only be overflow if i + j < INT_MIN
+ ** or if j < INT_MIN - i; given i < 0, INT_MIN - i cannot overflow.
+ */
+ if ((i >= 0) ? (j > INT_MAX - i) : (j < INT_MIN - i))
+ return true;
+ *ip += j;
+ return false;
}
-static int
+static bool
increment_overflow32(int_fast32_t *const lp, int const m)
{
- register int_fast32_t const l = *lp;
+ register int_fast32_t const l = *lp;
- if ((l >= 0) ? (m > INT_FAST32_MAX - l) : (m < INT_FAST32_MIN - l))
- return TRUE;
- *lp += m;
- return FALSE;
+ if ((l >= 0) ? (m > INT_FAST32_MAX - l) : (m < INT_FAST32_MIN - l))
+ return true;
+ *lp += m;
+ return false;
}
-static int
+static bool
increment_overflow_time(time_t *tp, int_fast32_t j)
{
- /*
- ** This is like
- ** 'if (! (time_t_min <= *tp + j && *tp + j <= time_t_max)) ...',
- ** except that it does the right thing even if *tp + j would overflow.
- */
- if (! (j < 0
- ? (TYPE_SIGNED(time_t) ? time_t_min - j <= *tp : -1 - j < *tp)
- : *tp <= time_t_max - j))
- return TRUE;
- *tp += j;
- return FALSE;
+ /*
+ ** This is like
+ ** 'if (! (time_t_min <= *tp + j && *tp + j <= time_t_max)) ...',
+ ** except that it does the right thing even if *tp + j would overflow.
+ */
+ if (! (j < 0
+ ? (TYPE_SIGNED(time_t) ? time_t_min - j <= *tp : -1 - j < *tp)
+ : *tp <= time_t_max - j))
+ return true;
+ *tp += j;
+ return false;
}
-static int
+static bool
normalize_overflow(int *const tensptr, int *const unitsptr, const int base)
{
- register int tensdelta;
+ register int tensdelta;
- tensdelta = (*unitsptr >= 0) ?
- (*unitsptr / base) :
- (-1 - (-1 - *unitsptr) / base);
- *unitsptr -= tensdelta * base;
- return increment_overflow(tensptr, tensdelta);
+ tensdelta = (*unitsptr >= 0) ?
+ (*unitsptr / base) :
+ (-1 - (-1 - *unitsptr) / base);
+ *unitsptr -= tensdelta * base;
+ return increment_overflow(tensptr, tensdelta);
}
-static int
-normalize_overflow32(int_fast32_t *const tensptr, int *const unitsptr,
- const int base)
+static bool
+normalize_overflow32(int_fast32_t *tensptr, int *unitsptr, int base)
{
- register int tensdelta;
+ register int tensdelta;
- tensdelta = (*unitsptr >= 0) ?
- (*unitsptr / base) :
- (-1 - (-1 - *unitsptr) / base);
- *unitsptr -= tensdelta * base;
- return increment_overflow32(tensptr, tensdelta);
+ tensdelta = (*unitsptr >= 0) ?
+ (*unitsptr / base) :
+ (-1 - (-1 - *unitsptr) / base);
+ *unitsptr -= tensdelta * base;
+ return increment_overflow32(tensptr, tensdelta);
}
static int
-tmcomp(register const struct tm * const atmp,
- register const struct tm * const btmp)
+tmcomp(register const struct tm *const atmp,
+ register const struct tm *const btmp)
{
- register int result;
-
- if (atmp->tm_year != btmp->tm_year)
- return atmp->tm_year < btmp->tm_year ? -1 : 1;
- if ((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;
+ register int result;
+
+ if (atmp->tm_year != btmp->tm_year)
+ return atmp->tm_year < btmp->tm_year ? -1 : 1;
+ if ((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(struct tm * const tmp,
- struct tm *(*const funcp)(const time_t*, int_fast32_t, struct tm*, struct state*),
- const int_fast32_t offset,
- int * const okayp,
- const int do_norm_secs, struct state * sp) // android-changed: added sp
+time2sub(struct tm *const tmp,
+ struct tm *(*funcp)(struct state const *, time_t const *,
+ int_fast32_t, struct tm *),
+ struct state const *sp,
+ const int_fast32_t offset,
+ bool *okayp,
+ bool do_norm_secs)
{
- register int dir;
- register int i, j;
- register int saved_seconds;
- register int_fast32_t li;
- register time_t lo;
- register time_t hi;
- int_fast32_t y;
- 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;
- y = yourtm.tm_year;
- if (normalize_overflow32(&y, &yourtm.tm_mon, MONSPERYEAR))
- return WRONG;
- /*
- ** Turn y into an actual year number for now.
- ** It is converted back to an offset from TM_YEAR_BASE later.
- */
- if (increment_overflow32(&y, TM_YEAR_BASE))
- return WRONG;
- while (yourtm.tm_mday <= 0) {
- if (increment_overflow32(&y, -1))
- return WRONG;
- li = y + (1 < yourtm.tm_mon);
- yourtm.tm_mday += year_lengths[isleap(li)];
- }
- while (yourtm.tm_mday > DAYSPERLYEAR) {
- li = y + (1 < yourtm.tm_mon);
- yourtm.tm_mday -= year_lengths[isleap(li)];
- if (increment_overflow32(&y, 1))
- return WRONG;
- }
- for ( ; ; ) {
- i = mon_lengths[isleap(y)][yourtm.tm_mon];
- if (yourtm.tm_mday <= i)
- break;
- yourtm.tm_mday -= i;
- if (++yourtm.tm_mon >= MONSPERYEAR) {
- yourtm.tm_mon = 0;
- if (increment_overflow32(&y, 1))
- return WRONG;
- }
- }
- if (increment_overflow32(&y, -TM_YEAR_BASE))
- return WRONG;
- yourtm.tm_year = y;
- if (yourtm.tm_year != y)
- return WRONG;
- if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN)
- saved_seconds = 0;
- else if (y + 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;
- }
- /*
- ** Do a binary search (this works whatever time_t's type is).
- */
- if (!TYPE_SIGNED(time_t)) {
- lo = 0;
- hi = lo - 1;
- } else {
- lo = 1;
- for (i = 0; i < (int) TYPE_BIT(time_t) - 1; ++i)
- lo *= 2;
- hi = -(lo + 1);
- }
- for ( ; ; ) {
- t = lo / 2 + hi / 2;
- if (t < lo)
- t = lo;
- else if (t > hi)
- t = hi;
- if ((*funcp)(&t, offset, &mytm, sp) == NULL) { // android-changed: added sp.
- /*
- ** Assume that t is too extreme to be represented in
- ** a struct tm; arrange things so that it is less
- ** extreme on the next pass.
- */
- dir = (t > 0) ? 1 : -1;
- } else dir = tmcomp(&mytm, &yourtm);
- if (dir != 0) {
- if (t == lo) {
- if (t == time_t_max)
- return WRONG;
- ++t;
- ++lo;
- } else if (t == hi) {
- if (t == time_t_min)
- return WRONG;
- --t;
- --hi;
- }
- if (lo > hi)
- return WRONG;
- if (dir > 0)
- hi = t;
- else lo = t;
- 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.
- */
- // BEGIN android-changed: support user-supplied sp
- if (sp == NULL) {
- sp = (struct state *)
- ((funcp == localsub) ? lclptr : gmtptr);
- }
- // END android-changed
- if (sp == NULL)
- return WRONG;
- 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;
- if ((*funcp)(&newt, offset, &mytm, sp) == NULL) // android-changed: added sp.
- continue;
- if (tmcomp(&mytm, &yourtm) != 0)
- continue;
- if (mytm.tm_isdst != yourtm.tm_isdst)
- continue;
- /*
- ** We have a match.
- */
- t = newt;
- goto label;
- }
- }
- return WRONG;
- }
+ register int dir;
+ register int i, j;
+ register int saved_seconds;
+ register int_fast32_t li;
+ register time_t lo;
+ register time_t hi;
+ int_fast32_t y;
+ 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;
+ y = yourtm.tm_year;
+ if (normalize_overflow32(&y, &yourtm.tm_mon, MONSPERYEAR))
+ return WRONG;
+ /*
+ ** Turn y into an actual year number for now.
+ ** It is converted back to an offset from TM_YEAR_BASE later.
+ */
+ if (increment_overflow32(&y, TM_YEAR_BASE))
+ return WRONG;
+ while (yourtm.tm_mday <= 0) {
+ if (increment_overflow32(&y, -1))
+ return WRONG;
+ li = y + (1 < yourtm.tm_mon);
+ yourtm.tm_mday += year_lengths[isleap(li)];
+ }
+ while (yourtm.tm_mday > DAYSPERLYEAR) {
+ li = y + (1 < yourtm.tm_mon);
+ yourtm.tm_mday -= year_lengths[isleap(li)];
+ if (increment_overflow32(&y, 1))
+ return WRONG;
+ }
+ for ( ; ; ) {
+ i = mon_lengths[isleap(y)][yourtm.tm_mon];
+ if (yourtm.tm_mday <= i)
+ break;
+ yourtm.tm_mday -= i;
+ if (++yourtm.tm_mon >= MONSPERYEAR) {
+ yourtm.tm_mon = 0;
+ if (increment_overflow32(&y, 1))
+ return WRONG;
+ }
+ }
+ if (increment_overflow32(&y, -TM_YEAR_BASE))
+ return WRONG;
+ if (! (INT_MIN <= y && y <= INT_MAX))
+ return WRONG;
+ yourtm.tm_year = y;
+ if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN)
+ saved_seconds = 0;
+ else if (y + 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;
+ }
+ /*
+ ** Do a binary search (this works whatever time_t's type is).
+ */
+ lo = time_t_min;
+ hi = time_t_max;
+ for ( ; ; ) {
+ t = lo / 2 + hi / 2;
+ if (t < lo)
+ t = lo;
+ else if (t > hi)
+ t = hi;
+ if (! funcp(sp, &t, offset, &mytm)) {
+ /*
+ ** Assume that t is too extreme to be represented in
+ ** a struct tm; arrange things so that it is less
+ ** extreme on the next pass.
+ */
+ dir = (t > 0) ? 1 : -1;
+ } else dir = tmcomp(&mytm, &yourtm);
+ if (dir != 0) {
+ if (t == lo) {
+ if (t == time_t_max)
+ return WRONG;
+ ++t;
+ ++lo;
+ } else if (t == hi) {
+ if (t == time_t_min)
+ return WRONG;
+ --t;
+ --hi;
+ }
+ if (lo > hi)
+ return WRONG;
+ if (dir > 0)
+ hi = t;
+ else lo = t;
+ continue;
+ }
+#if defined TM_GMTOFF && ! UNINIT_TRAP
+ if (mytm.TM_GMTOFF != yourtm.TM_GMTOFF
+ && (yourtm.TM_GMTOFF < 0
+ ? (-SECSPERDAY <= yourtm.TM_GMTOFF
+ && (mytm.TM_GMTOFF <=
+ (SMALLEST (INT_FAST32_MAX, LONG_MAX)
+ + yourtm.TM_GMTOFF)))
+ : (yourtm.TM_GMTOFF <= SECSPERDAY
+ && ((BIGGEST (INT_FAST32_MIN, LONG_MIN)
+ + yourtm.TM_GMTOFF)
+ <= mytm.TM_GMTOFF)))) {
+ /* MYTM matches YOURTM except with the wrong UTC offset.
+ YOURTM.TM_GMTOFF is plausible, so try it instead.
+ It's OK if YOURTM.TM_GMTOFF contains uninitialized data,
+ since the guess gets checked. */
+ time_t altt = t;
+ int_fast32_t diff = mytm.TM_GMTOFF - yourtm.TM_GMTOFF;
+ if (!increment_overflow_time(&altt, diff)) {
+ struct tm alttm;
+ if (funcp(sp, &altt, offset, &alttm)
+ && alttm.tm_isdst == mytm.tm_isdst
+ && alttm.TM_GMTOFF == yourtm.TM_GMTOFF
+ && tmcomp(&alttm, &yourtm) == 0) {
+ t = altt;
+ mytm = alttm;
+ }
+ }
+ }
+#endif
+ 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.
+ */
+ if (sp == NULL)
+ return WRONG;
+ 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;
+ if (! funcp(sp, &newt, offset, &mytm))
+ continue;
+ 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;
- if ((*funcp)(&t, offset, tmp, sp)) // android-changed: added sp.
- *okayp = TRUE;
- return t;
+ newt = t + saved_seconds;
+ if ((newt < t) != (saved_seconds < 0))
+ return WRONG;
+ t = newt;
+ if (funcp(sp, &t, offset, tmp))
+ *okayp = true;
+ return t;
}
static time_t
-time2(struct tm * const tmp,
- struct tm * (*const funcp)(const time_t *, int_fast32_t, struct tm *, struct state *), // android-changed: added sp.
+time2(struct tm * const tmp,
+ struct tm *(*funcp)(struct state const *, time_t const *,
+ int_fast32_t, struct tm *),
+ struct state const *sp,
const int_fast32_t offset,
- int *const okayp, struct state* sp) // android-changed: added sp.
+ bool *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, sp);
- return *okayp ? t : time2sub(tmp, funcp, offset, okayp, TRUE, sp);
+ 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, sp, offset, okayp, false);
+ return *okayp ? t : time2sub(tmp, funcp, sp, offset, okayp, true);
}
static time_t
-time1(struct tm * const tmp,
- struct tm * (* const funcp) (const time_t *, int_fast32_t, struct tm *, struct state *), // android-changed: added sp.
- const int_fast32_t offset, struct state * sp) // android-changed: added sp.
+time1(struct tm *const tmp,
+ struct tm *(*funcp) (struct state const *, time_t const *,
+ int_fast32_t, struct tm *),
+ struct state const *sp,
+ const int_fast32_t offset)
{
- register time_t t;
- register int samei, otheri;
- register int sameind, otherind;
- register int i;
- register int nseen;
- char seen[TZ_MAX_TYPES];
- unsigned char types[TZ_MAX_TYPES];
- int okay;
-
- if (tmp == NULL) {
- errno = EINVAL;
- return WRONG;
- }
- if (tmp->tm_isdst > 1)
- tmp->tm_isdst = 1;
- t = time2(tmp, funcp, offset, &okay, sp); // android-changed: added sp.
- if (okay)
- return t;
- if (tmp->tm_isdst < 0)
+ register time_t t;
+ register int samei, otheri;
+ register int sameind, otherind;
+ register int i;
+ register int nseen;
+ char seen[TZ_MAX_TYPES];
+ unsigned char types[TZ_MAX_TYPES];
+ bool okay;
+
+ if (tmp == NULL) {
+ errno = EINVAL;
+ return WRONG;
+ }
+ if (tmp->tm_isdst > 1)
+ tmp->tm_isdst = 1;
+ t = time2(tmp, funcp, sp, offset, &okay);
+ if (okay)
+ return t;
+ if (tmp->tm_isdst < 0)
#ifdef PCTS
- /*
- ** POSIX Conformance Test Suite code courtesy Grant Sullivan.
- */
- tmp->tm_isdst = 0; /* reset to std and try again */
+ /*
+ ** POSIX Conformance Test Suite code courtesy Grant Sullivan.
+ */
+ tmp->tm_isdst = 0; /* reset to std and try again */
#else
- return t;
+ 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.
- */
- // BEGIN android-changed: support user-supplied sp.
- if (sp == NULL) {
- sp = (struct state *) ((funcp == localsub) ? lclptr : gmtptr);
- }
- // BEGIN android-changed
- if (sp == NULL)
- return WRONG;
- 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, sp); // android-changed: added sp.
- 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;
+ /*
+ ** 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.
+ */
+ if (sp == NULL)
+ return WRONG;
+ 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, sp, 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;
}
-time_t
-mktime(struct tm * const tmp)
+static time_t
+mktime_tzname(struct state *sp, struct tm *tmp, bool setname)
{
- _tzLock();
- tzset_locked();
- time_t result = time1(tmp, localsub, 0L, NULL); // android-changed: extra parameter.
- _tzUnlock();
- return result;
+ if (sp)
+ return time1(tmp, localsub, sp, setname);
+ else {
+ gmtcheck();
+ return time1(tmp, gmtsub, gmtptr, 0);
+ }
}
-#ifdef STD_INSPIRED
+#if NETBSD_INSPIRED
time_t
-timelocal(struct tm * const tmp)
+mktime_z(struct state *sp, struct tm *tmp)
{
- if (tmp != NULL)
- tmp->tm_isdst = -1; /* in case it wasn't initialized */
- return mktime(tmp);
+ return mktime_tzname(sp, tmp, false);
}
+#endif
+
time_t
-timegm(struct tm * const tmp)
+mktime(struct tm *tmp)
{
- time_t result;
+ time_t t;
+ int err = lock();
+ if (err) {
+ errno = err;
+ return -1;
+ }
+ tzset_unlocked();
+ t = mktime_tzname(lclptr, tmp, true);
+ unlock();
+ return t;
+}
- if (tmp != NULL)
- tmp->tm_isdst = 0;
- _tzLock();
- result = time1(tmp, gmtsub, 0L, NULL); // android-changed: extra parameter.
- _tzUnlock();
+#ifdef STD_INSPIRED
- return result;
+time_t
+timelocal(struct tm *tmp)
+{
+ if (tmp != NULL)
+ tmp->tm_isdst = -1; /* in case it wasn't initialized */
+ return mktime(tmp);
}
time_t
-timeoff(struct tm *const tmp, const long offset)
+timegm(struct tm *tmp)
{
- if (tmp != NULL)
- tmp->tm_isdst = 0;
- return time1(tmp, gmtsub, offset, NULL); // android-changed: extra parameter.
+ return timeoff(tmp, 0);
}
-#endif /* defined STD_INSPIRED */
-
-#ifdef CMUCS
-
-/*
-** The following is supplied for compatibility with
-** previous versions of the CMUCS runtime library.
-*/
-
-long
-gtime(struct tm * const tmp)
+time_t
+timeoff(struct tm *tmp, long offset)
{
- const time_t t = mktime(tmp);
-
- if (t == WRONG)
- return -1;
- return t;
+ if (tmp)
+ tmp->tm_isdst = 0;
+ gmtcheck();
+ return time1(tmp, gmtsub, gmtptr, offset);
}
-#endif /* defined CMUCS */
+#endif /* defined STD_INSPIRED */
/*
** XXX--is the below the right way to conditionalize??
*/
static int_fast64_t
-leapcorr(time_t * timep)
+leapcorr(struct state const *sp, time_t t)
{
- register struct state * sp;
- register struct lsinfo * lp;
- register 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;
+ register struct lsinfo const * lp;
+ register int i;
+
+ i = sp->leapcnt;
+ while (--i >= 0) {
+ lp = &sp->lsis[i];
+ if (t >= lp->ls_trans)
+ return lp->ls_corr;
+ }
+ return 0;
+}
+
+NETBSD_INSPIRED_EXTERN time_t ATTRIBUTE_PURE
+time2posix_z(struct state *sp, time_t t)
+{
+ return t - leapcorr(sp, t);
}
time_t
time2posix(time_t t)
{
- tzset();
- return t - leapcorr(&t);
+ int err = lock();
+ if (err) {
+ errno = err;
+ return -1;
+ }
+ if (!lcl_is_set)
+ tzset_unlocked();
+ if (lclptr)
+ t = time2posix_z(lclptr, t);
+ unlock();
+ return t;
+}
+
+NETBSD_INSPIRED_EXTERN time_t ATTRIBUTE_PURE
+posix2time_z(struct state *sp, time_t t)
+{
+ time_t x;
+ time_t y;
+ /*
+ ** 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(sp, t);
+ y = x - leapcorr(sp, x);
+ if (y < t) {
+ do {
+ x++;
+ y = x - leapcorr(sp, x);
+ } while (y < t);
+ x -= y != t;
+ } else if (y > t) {
+ do {
+ --x;
+ y = x - leapcorr(sp, x);
+ } while (y > t);
+ x += y != t;
+ }
+ return x;
}
time_t
posix2time(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;
+ int err = lock();
+ if (err) {
+ errno = err;
+ return -1;
+ }
+ if (!lcl_is_set)
+ tzset_unlocked();
+ if (lclptr)
+ t = posix2time_z(lclptr, t);
+ unlock();
+ return t;
}
#endif /* defined STD_INSPIRED */
+#ifdef time_tz
+
+/* Convert from the underlying system's time_t to the ersatz time_tz,
+ which is called 'time_t' in this file. */
+
+time_t
+time(time_t *p)
+{
+ time_t r = sys_time(0);
+ if (p)
+ *p = r;
+ return r;
+}
+
+#endif
+
// BEGIN android-added
#include <assert.h>
#include <arpa/inet.h> // For ntohl(3).
static int __bionic_open_tzdata_path(const char* path_prefix_variable, const char* path_suffix,
- const char* olson_id, int* data_size) {
+ const char* olson_id) {
const char* path_prefix = getenv(path_prefix_variable);
if (path_prefix == NULL) {
fprintf(stderr, "%s: %s not set!\n", __FUNCTION__, path_prefix_variable);
snprintf(path, path_length, "%s/%s", path_prefix, path_suffix);
int fd = TEMP_FAILURE_RETRY(open(path, OPEN_MODE));
if (fd == -1) {
- XLOG(("%s: could not open \"%s\": %s\n", __FUNCTION__, path, strerror(errno)));
free(path);
return -2; // Distinguish failure to find any data from failure to find a specific id.
}
if (strcmp(this_id, olson_id) == 0) {
specific_zone_offset = ntohl(entry->start) + ntohl(header.data_offset);
- *data_size = ntohl(entry->length);
break;
}
free(index);
if (specific_zone_offset == -1) {
- XLOG(("%s: couldn't find zone \"%s\"\n", __FUNCTION__, olson_id));
free(path);
close(fd);
return -1;
return fd;
}
-static int __bionic_open_tzdata(const char* olson_id, int* data_size) {
- int fd = __bionic_open_tzdata_path("ANDROID_DATA", "/misc/zoneinfo/current/tzdata", olson_id, data_size);
+static int __bionic_open_tzdata(const char* olson_id) {
+ int fd = __bionic_open_tzdata_path("ANDROID_DATA", "/misc/zoneinfo/current/tzdata", olson_id);
if (fd < 0) {
- fd = __bionic_open_tzdata_path("ANDROID_ROOT", "/usr/share/zoneinfo/tzdata", olson_id, data_size);
+ fd = __bionic_open_tzdata_path("ANDROID_ROOT", "/usr/share/zoneinfo/tzdata", olson_id);
if (fd == -2) {
// The first thing that 'recovery' does is try to format the current time. It doesn't have
// any tzdata available, so we must not abort here --- doing so breaks the recovery image!
// Caches the most recent timezone (http://b/8270865).
static int __bionic_tzload_cached(const char* name, struct state* const sp, const int doextend) {
- _tzLock();
+ lock();
// Our single-item cache.
static char* g_cached_time_zone_name;
// Do we already have this timezone cached?
if (g_cached_time_zone_name != NULL && strcmp(name, g_cached_time_zone_name) == 0) {
*sp = g_cached_time_zone;
- _tzUnlock();
+ unlock();
return 0;
}
g_cached_time_zone = *sp;
}
- _tzUnlock();
+ unlock();
return rc;
}
if (st == NULL)
return 0;
- if (__bionic_tzload_cached(tz, st, TRUE) != 0) {
+ if (__bionic_tzload_cached(tz, st, true) != 0) {
// TODO: not sure what's best here, but for now, we fall back to gmt.
gmtload(st);
}
- return_value = time1(tmp, localsub, 0L, st);
+ return_value = time1(tmp, localsub, st, 0L);
free(st);
return return_value;
}
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