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-rw-r--r--lib/gettimeofday.c123
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diff --git a/lib/gettimeofday.c b/lib/gettimeofday.c
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--- a/lib/gettimeofday.c
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-/* Work around the bug in some systems whereby gettimeofday clobbers the
- static buffer that localtime uses for it's return value. The gettimeofday
- function from Mac OS X 10.0.4, i.e. Darwin 1.3.7 has this problem.
- The tzset replacement is necessary for at least Solaris 2.5, 2.5.1, and 2.6.
- Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
-
-/* written by Jim Meyering */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-/* Disable the definitions of these functions (from config.h)
- so we can use the library versions here. */
-#undef gettimeofday
-#undef gmtime
-#undef localtime
-#undef tzset
-
-#include <sys/types.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#include <stdlib.h>
-
-static struct tm *localtime_buffer_addr;
-
-/* This is a wrapper for localtime. It is used only on systems for which
- gettimeofday clobbers the static buffer used for localtime's result.
-
- On the first call, record the address of the static buffer that
- localtime uses for its result. */
-
-struct tm *
-rpl_localtime (const time_t *timep)
-{
- struct tm *tm = localtime (timep);
-
- if (! localtime_buffer_addr)
- localtime_buffer_addr = tm;
-
- return tm;
-}
-
-/* Same as above, since gmtime and localtime use the same buffer. */
-struct tm *
-rpl_gmtime (const time_t *timep)
-{
- struct tm *tm = gmtime (timep);
-
- if (! localtime_buffer_addr)
- localtime_buffer_addr = tm;
-
- return tm;
-}
-
-/* This is a wrapper for gettimeofday. It is used only on systems for which
- gettimeofday clobbers the static buffer used for localtime's result.
-
- Save and restore the contents of the buffer used for localtime's result
- around the call to gettimeofday. */
-
-int
-rpl_gettimeofday (struct timeval *tv, struct timezone *tz)
-{
- struct tm save;
- int result;
-
- if (! localtime_buffer_addr)
- {
- time_t t = 0;
- localtime_buffer_addr = localtime (&t);
- }
-
- save = *localtime_buffer_addr;
- result = gettimeofday (tv, tz);
- *localtime_buffer_addr = save;
-
- return result;
-}
-
-/* This is a wrapper for tzset. It is used only on systems for which
- tzset may clobber the static buffer used for localtime's result.
- Save and restore the contents of the buffer used for localtime's
- result around the call to tzset. */
-void
-rpl_tzset (void)
-{
- struct tm save;
-
- if (! localtime_buffer_addr)
- {
- time_t t = 0;
- localtime_buffer_addr = localtime (&t);
- }
-
- save = *localtime_buffer_addr;
- tzset ();
- *localtime_buffer_addr = save;
-}