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/* timehead.h - from the autoconf docs: sanely include the right time headers everywhere
Copyright (C) 2001 Russell Kroll <rkroll@exploits.org>
2005 Arnaud Quette <arnaud.quette@free.fr>
2020-2025 Jim Klimov <jimklimov+nut@gmail.com>
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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef NUT_TIMEHEAD_H_SEEN
#define NUT_TIMEHEAD_H_SEEN 1
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#ifndef HAVE_STRPTIME
/* Use fallback implementation provided in e.g. libcommon(client).la: */
char * strptime(const char *buf, const char *fmt, struct tm *tm);
#endif
#if !(defined HAVE_LOCALTIME_R && HAVE_LOCALTIME_R) && !(defined HAVE_DECL_LOCALTIME_R && HAVE_DECL_LOCALTIME_R)
# if (defined HAVE_LOCALTIME_S && HAVE_LOCALTIME_S) || (defined HAVE_DECL_LOCALTIME_S && HAVE_DECL_LOCALTIME_S)
/* A bit of a silly trick, but should help on MSYS2 builds it seems
* errno_t localtime_s(struct tm *_Tm, const time_t *_Time)
*/
# define localtime_r(timer, buf) (localtime_s(buf, timer) ? NULL : buf)
# else
# include <string.h> /* memcpy */
static inline struct tm *localtime_r( const time_t *timer, struct tm *buf ) {
/* Note NUT_WIN32_INCOMPLETE : not thread-safe per se! */
struct tm *tmp = localtime (timer);
memcpy(buf, tmp, sizeof(struct tm));
return buf;
}
# endif
#endif
#if !(defined HAVE_GMTIME_R && HAVE_GMTIME_R) && !(defined HAVE_DECL_GMTIME_R && HAVE_DECL_GMTIME_R)
# if (defined HAVE_GMTIME_S && HAVE_GMTIME_S) || (defined HAVE_DECL_GMTIME_S && HAVE_DECL_GMTIME_S)
/* See comment above */
# define gmtime_r(timer, buf) (gmtime_s(buf, timer) ? NULL : buf)
# else
# include <string.h> /* memcpy */
static inline struct tm *gmtime_r( const time_t *timer, struct tm *buf ) {
/* Note NUT_WIN32_INCOMPLETE : not thread-safe per se! */
struct tm *tmp = gmtime (timer);
memcpy(buf, tmp, sizeof(struct tm));
return buf;
}
# endif
#endif
#if !(defined HAVE_TIMEGM && HAVE_TIMEGM) && !(defined HAVE_DECL_TIMEGM && HAVE_DECL_TIMEGM)
# if (defined HAVE__MKGMTIME && HAVE__MKGMTIME) || (defined HAVE_DECL__MKGMTIME && HAVE_DECL__MKGMTIME)
# define timegm(tm) _mkgmtime(tm)
# else
# ifdef WANT_TIMEGM_FALLBACK
/* use an implementation from fallbacks in NUT codebase */
# define timegm(tm) timegm_fallback(tm)
# else
# error "No fallback implementation for timegm"
# endif
# endif
#endif
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#endif /* NUT_TIMEHEAD_H_SEEN */
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