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authorRoland McGrath <roland@gnu.org>1995-09-18 19:00:32 +0000
committerRoland McGrath <roland@gnu.org>1995-09-18 19:00:32 +0000
commitc22164805d6fed3359e7f606c02974ae53d5e3de (patch)
tree90275c9f8c053c60c4a88d28f8692e67d2dbbefa /time/localtime.c
parentaa9109070f2919ab519de474e00274c9fff5dcff (diff)
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Mon Sep 18 12:39:22 1995 Paul Eggert <eggert@twinsun.com>
* mktime.c (localtime_r): Add substitute if the system doesn't provide one. Mon Sep 18 14:39:20 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * time/gmtime.c (gmtime_r): Define as weak alias. * time/localtime.c (localtime_r): Define as weak alias. * time/time.h [__USE_REENTRANT] (gmtime_r, localtime_r): Declare them. * errno.h: Only define _ERRNO_H #ifndef __need_Emath. #undef __need_Emath after including errnos.h. [_ERRNO_H]: Protect decls with this. Sun Sep 17 08:22:12 1995 Paul Eggert <eggert@twinsun.com> Fix mktime so that it does not write over localtime's returned value. * localtime.c (__localtime_r): New function, with extra arg specifying where to store result. (localtime): Use it. (_tmbuf): New var. * gmtime.c (__gmtime_r, gmtime, _tmbuf): Likewise. * mktime.c (__mktime_internal): Conversion function is now __localtime_r style, not localtime style. (mktime): Pass __localtime_r, not localtime. * timegm.c (timegm): Pass __gmtime_r, not gmtime. * offtime.c (__offtime): New arg specifying where to store result. * time.h (__mktime_internal, __offtime): Adjust decls accordingly. (__gmtime_r, __localtime_r): New decls. * time/localtime.c: <stddef.h>, <ctype.h>, <stdio.h>, <stdlib.h>, <string.h>: Remove includes. <errno.h>: Add include. * time/mktime.c, time/time.h, time/timegm.c (__mktime_internal): Renamed from _mktime_internal to avoid namespace pollution. * time/gmtime.c: Clear tm_isdst. * misc/efgcvt_r.c (ecvt_r, fcvt_r): Last arg is size_t, not int. * stdlib/stdlib.h (ecvt_r, fcvt_r): Fix type of last arg: make it size_t. * sysdeps/mach/hurd/fpathconf.c: Call __io_pathconf instead of __file_pathconf. * sysdeps/mach/hurd/pathconf.c: Likewise.
Diffstat (limited to 'time/localtime.c')
-rw-r--r--time/localtime.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/time/localtime.c b/time/localtime.c
index 5743347641..4c68ab22dc 100644
--- a/time/localtime.c
+++ b/time/localtime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -16,24 +16,29 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <stddef.h>
-#include <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <errno.h>
#include <time.h>
+/* The C Standard says that localtime and gmtime return the same pointer. */
+struct tm _tmbuf;
/* Return the `struct tm' representation of *TIMER in the local timezone. */
struct tm *
localtime (timer)
const time_t *timer;
{
+ return __localtime_r (timer, &_tmbuf);
+}
+
+struct tm *
+__localtime_r (timer, tp)
+ const time_t *timer;
+ struct tm *tp;
+{
extern int __use_tzfile;
extern int __tz_compute __P ((time_t timer, struct tm *tp));
extern int __tzfile_compute __P ((time_t timer,
long int *leap_correct, int *leap_hit));
- register struct tm *tp;
long int leap_correction;
int leap_extra_secs;
@@ -57,21 +62,22 @@ localtime (timer)
}
else
{
- tp = gmtime (timer);
- if (tp == NULL)
+ struct tm *gmtp = __gmtime_r (timer, tp);
+ if (gmtp == NULL)
return NULL;
- if (! __tz_compute (*timer, tp))
+ if (! __tz_compute (*timer, gmtp))
return NULL;
leap_correction = 0L;
leap_extra_secs = 0;
}
- tp = __offtime (timer, __timezone - leap_correction);
+ __offtime (timer, __timezone - leap_correction, tp);
tp->tm_sec += leap_extra_secs;
tp->tm_isdst = __daylight;
tp->tm_gmtoff = __timezone;
tp->tm_zone = __tzname[__daylight];
return tp;
}
+weak_alias (__localtime_r, localtime_r)