453 lines
16 KiB
C
453 lines
16 KiB
C
|
/* A more-standard <time.h>.
|
||
|
|
|
||
|
|
Copyright (C) 2007-2022 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is free software: you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU Lesser General Public License as
|
||
|
|
published by the Free Software Foundation; either version 2.1 of the
|
||
|
|
License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This file 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 Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public License
|
||
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#if __GNUC__ >= 3
|
||
|
|
@PRAGMA_SYSTEM_HEADER@
|
||
|
|
#endif
|
||
|
|
@PRAGMA_COLUMNS@
|
||
|
|
|
||
|
|
/* Don't get in the way of glibc when it includes time.h merely to
|
||
|
|
declare a few standard symbols, rather than to declare all the
|
||
|
|
symbols. (However, skip this for MinGW as it treats __need_time_t
|
||
|
|
incompatibly.) Also, Solaris 8 <time.h> eventually includes itself
|
||
|
|
recursively; if that is happening, just include the system <time.h>
|
||
|
|
without adding our own declarations. */
|
||
|
|
#if (((defined __need_time_t || defined __need_clock_t \
|
||
|
|
|| defined __need_timespec) \
|
||
|
|
&& !defined __MINGW32__) \
|
||
|
|
|| defined _@GUARD_PREFIX@_TIME_H)
|
||
|
|
|
||
|
|
# @INCLUDE_NEXT@ @NEXT_TIME_H@
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
# define _@GUARD_PREFIX@_TIME_H
|
||
|
|
|
||
|
|
/* mingw's <time.h> provides the functions asctime_r, ctime_r, gmtime_r,
|
||
|
|
localtime_r only if <unistd.h> or <pthread.h> has been included before. */
|
||
|
|
# if defined __MINGW32__
|
||
|
|
# include <unistd.h>
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# @INCLUDE_NEXT@ @NEXT_TIME_H@
|
||
|
|
|
||
|
|
/* NetBSD 5.0 mis-defines NULL. */
|
||
|
|
# include <stddef.h>
|
||
|
|
|
||
|
|
/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
|
||
|
|
|
||
|
|
/* The definition of _GL_ARG_NONNULL is copied here. */
|
||
|
|
|
||
|
|
/* The definition of _GL_WARN_ON_USE is copied here. */
|
||
|
|
|
||
|
|
/* Some systems don't define struct timespec (e.g., AIX 4.1).
|
||
|
|
Or they define it with the wrong member names or define it in <sys/time.h>
|
||
|
|
(e.g., FreeBSD circa 1997). Stock Mingw prior to 3.0 does not define it,
|
||
|
|
but the pthreads-win32 library defines it in <pthread.h>. */
|
||
|
|
# if ! @TIME_H_DEFINES_STRUCT_TIMESPEC@
|
||
|
|
# if @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@
|
||
|
|
# include <sys/time.h>
|
||
|
|
# elif @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@
|
||
|
|
# include <pthread.h>
|
||
|
|
# elif @UNISTD_H_DEFINES_STRUCT_TIMESPEC@
|
||
|
|
# include <unistd.h>
|
||
|
|
# else
|
||
|
|
|
||
|
|
# ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if !GNULIB_defined_struct_timespec
|
||
|
|
# undef timespec
|
||
|
|
# define timespec rpl_timespec
|
||
|
|
struct timespec
|
||
|
|
{
|
||
|
|
time_t tv_sec;
|
||
|
|
long int tv_nsec;
|
||
|
|
};
|
||
|
|
# define GNULIB_defined_struct_timespec 1
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# ifdef __cplusplus
|
||
|
|
}
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if !GNULIB_defined_struct_time_t_must_be_integral
|
||
|
|
/* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_types.h.html
|
||
|
|
requires time_t to be an integer type, even though C99 permits floating
|
||
|
|
point. We don't know of any implementation that uses floating
|
||
|
|
point, and it is much easier to write code that doesn't have to
|
||
|
|
worry about that corner case, so we force the issue. */
|
||
|
|
struct __time_t_must_be_integral {
|
||
|
|
unsigned int __floating_time_t_unsupported : (time_t) 1;
|
||
|
|
};
|
||
|
|
# define GNULIB_defined_struct_time_t_must_be_integral 1
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Define TIME_UTC, a positive integer constant used for timespec_get(). */
|
||
|
|
# if ! @TIME_H_DEFINES_TIME_UTC@
|
||
|
|
# if !GNULIB_defined_TIME_UTC
|
||
|
|
# define TIME_UTC 1
|
||
|
|
# define GNULIB_defined_TIME_UTC 1
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Set *TS to the current time, and return BASE.
|
||
|
|
Upon failure, return 0. */
|
||
|
|
# if @GNULIB_TIMESPEC_GET@
|
||
|
|
# if ! @HAVE_TIMESPEC_GET@
|
||
|
|
_GL_FUNCDECL_SYS (timespec_get, int, (struct timespec *ts, int base)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (timespec_get, int, (struct timespec *ts, int base));
|
||
|
|
_GL_CXXALIASWARN (timespec_get);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Set *TS to the current time resolution, and return BASE.
|
||
|
|
Upon failure, return 0. */
|
||
|
|
# if @GNULIB_TIMESPEC_GETRES@
|
||
|
|
# if ! @HAVE_TIMESPEC_GETRES@
|
||
|
|
_GL_FUNCDECL_SYS (timespec_getres, int, (struct timespec *ts, int base)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (timespec_getres, int, (struct timespec *ts, int base));
|
||
|
|
_GL_CXXALIASWARN (timespec_getres);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Sleep for at least RQTP seconds unless interrupted, If interrupted,
|
||
|
|
return -1 and store the remaining time into RMTP. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/nanosleep.html>. */
|
||
|
|
# if @GNULIB_NANOSLEEP@
|
||
|
|
# if @REPLACE_NANOSLEEP@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define nanosleep rpl_nanosleep
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (nanosleep, int,
|
||
|
|
(struct timespec const *__rqtp, struct timespec *__rmtp)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (nanosleep, int,
|
||
|
|
(struct timespec const *__rqtp, struct timespec *__rmtp));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_NANOSLEEP@
|
||
|
|
_GL_FUNCDECL_SYS (nanosleep, int,
|
||
|
|
(struct timespec const *__rqtp, struct timespec *__rmtp)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (nanosleep, int,
|
||
|
|
(struct timespec const *__rqtp, struct timespec *__rmtp));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (nanosleep);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Initialize time conversion information. */
|
||
|
|
# if @GNULIB_TZSET@
|
||
|
|
# if @REPLACE_TZSET@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef tzset
|
||
|
|
# define tzset rpl_tzset
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (tzset, void, (void));
|
||
|
|
_GL_CXXALIAS_RPL (tzset, void, (void));
|
||
|
|
# elif defined _WIN32 && !defined __CYGWIN__
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef tzset
|
||
|
|
# define tzset _tzset
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_MDA (tzset, void, (void));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (tzset, void, (void));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (tzset);
|
||
|
|
# elif @GNULIB_MDA_TZSET@
|
||
|
|
/* On native Windows, map 'tzset' to '_tzset', so that -loldnames is not
|
||
|
|
required. In C++ with GNULIB_NAMESPACE, avoid differences between
|
||
|
|
platforms by defining GNULIB_NAMESPACE::tzset always. */
|
||
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef tzset
|
||
|
|
# define tzset _tzset
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_MDA (tzset, void, (void));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (tzset, void, (void));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (tzset);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Return the 'time_t' representation of TP and normalize TP. */
|
||
|
|
# if @GNULIB_MKTIME@
|
||
|
|
# if @REPLACE_MKTIME@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define mktime rpl_mktime
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (mktime);
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Convert TIMER to RESULT, assuming local time and UTC respectively. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime_r.html> and
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gmtime_r.html>. */
|
||
|
|
# if @GNULIB_TIME_R@
|
||
|
|
# if @REPLACE_LOCALTIME_R@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef localtime_r
|
||
|
|
# define localtime_r rpl_localtime_r
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_DECL_LOCALTIME_R@
|
||
|
|
_GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result));
|
||
|
|
# endif
|
||
|
|
# if @HAVE_DECL_LOCALTIME_R@
|
||
|
|
_GL_CXXALIASWARN (localtime_r);
|
||
|
|
# endif
|
||
|
|
# if @REPLACE_LOCALTIME_R@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef gmtime_r
|
||
|
|
# define gmtime_r rpl_gmtime_r
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
_GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_DECL_LOCALTIME_R@
|
||
|
|
_GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result)
|
||
|
|
_GL_ARG_NONNULL ((1, 2)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result));
|
||
|
|
# endif
|
||
|
|
# if @HAVE_DECL_LOCALTIME_R@
|
||
|
|
_GL_CXXALIASWARN (gmtime_r);
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Convert TIMER to RESULT, assuming local time and UTC respectively. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/localtime.html> and
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/gmtime.html>. */
|
||
|
|
# if @GNULIB_LOCALTIME@ || @REPLACE_LOCALTIME@
|
||
|
|
# if @REPLACE_LOCALTIME@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef localtime
|
||
|
|
# define localtime rpl_localtime
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (localtime, struct tm *, (time_t const *__timer)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (localtime, struct tm *, (time_t const *__timer));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (localtime, struct tm *, (time_t const *__timer));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (localtime);
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if 0 || @REPLACE_GMTIME@
|
||
|
|
# if @REPLACE_GMTIME@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef gmtime
|
||
|
|
# define gmtime rpl_gmtime
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (gmtime, struct tm *, (time_t const *__timer)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (gmtime, struct tm *, (time_t const *__timer));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (gmtime, struct tm *, (time_t const *__timer));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (gmtime);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Parse BUF as a timestamp, assuming FORMAT specifies its layout, and store
|
||
|
|
the resulting broken-down time into TM. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/strptime.html>. */
|
||
|
|
# if @GNULIB_STRPTIME@
|
||
|
|
# if ! @HAVE_STRPTIME@
|
||
|
|
_GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf,
|
||
|
|
char const *restrict __format,
|
||
|
|
struct tm *restrict __tm)
|
||
|
|
_GL_ARG_NONNULL ((1, 2, 3)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf,
|
||
|
|
char const *restrict __format,
|
||
|
|
struct tm *restrict __tm));
|
||
|
|
_GL_CXXALIASWARN (strptime);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Convert *TP to a date and time string. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/ctime.html>. */
|
||
|
|
# if @GNULIB_CTIME@
|
||
|
|
# if @REPLACE_CTIME@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define ctime rpl_ctime
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (ctime, char *, (time_t const *__tp)
|
||
|
|
_GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (ctime, char *, (time_t const *__tp));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (ctime, char *, (time_t const *__tp));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (ctime);
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Convert *TP to a date and time string. See
|
||
|
|
<https://pubs.opengroup.org/onlinepubs/9699919799/functions/strftime.html>. */
|
||
|
|
# if @GNULIB_STRFTIME@
|
||
|
|
# if @REPLACE_STRFTIME@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# define strftime rpl_strftime
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (strftime, size_t,
|
||
|
|
(char *restrict __buf, size_t __bufsize,
|
||
|
|
const char *restrict __fmt, const struct tm *restrict __tp)
|
||
|
|
_GL_ARG_NONNULL ((1, 3, 4)));
|
||
|
|
_GL_CXXALIAS_RPL (strftime, size_t,
|
||
|
|
(char *restrict __buf, size_t __bufsize,
|
||
|
|
const char *restrict __fmt, const struct tm *restrict __tp));
|
||
|
|
# else
|
||
|
|
_GL_CXXALIAS_SYS (strftime, size_t,
|
||
|
|
(char *restrict __buf, size_t __bufsize,
|
||
|
|
const char *restrict __fmt, const struct tm *restrict __tp));
|
||
|
|
# endif
|
||
|
|
# if __GLIBC__ >= 2
|
||
|
|
_GL_CXXALIASWARN (strftime);
|
||
|
|
# endif
|
||
|
|
# endif
|
||
|
|
|
||
|
|
# if defined _GNU_SOURCE && @GNULIB_TIME_RZ@ && ! @HAVE_TIMEZONE_T@
|
||
|
|
/* Functions that use a first-class time zone data type, instead of
|
||
|
|
relying on an implicit global time zone.
|
||
|
|
Inspired by NetBSD. */
|
||
|
|
|
||
|
|
/* Represents a time zone.
|
||
|
|
(timezone_t) NULL stands for UTC. */
|
||
|
|
typedef struct tm_zone *timezone_t;
|
||
|
|
|
||
|
|
/* tzalloc (name)
|
||
|
|
Returns a time zone object for the given time zone NAME. This object
|
||
|
|
represents the time zone that other functions would use it the TZ
|
||
|
|
environment variable was set to NAME.
|
||
|
|
If NAME is NULL, the result represents the time zone that other functions
|
||
|
|
would use it the TZ environment variable was unset.
|
||
|
|
May return NULL if NAME is invalid (this is platform dependent) or
|
||
|
|
upon memory allocation failure. */
|
||
|
|
_GL_FUNCDECL_SYS (tzalloc, timezone_t, (char const *__name));
|
||
|
|
_GL_CXXALIAS_SYS (tzalloc, timezone_t, (char const *__name));
|
||
|
|
|
||
|
|
/* tzfree (tz)
|
||
|
|
Frees a time zone object.
|
||
|
|
The argument must have been returned by tzalloc(). */
|
||
|
|
_GL_FUNCDECL_SYS (tzfree, void, (timezone_t __tz));
|
||
|
|
_GL_CXXALIAS_SYS (tzfree, void, (timezone_t __tz));
|
||
|
|
|
||
|
|
/* localtime_rz (tz, &t, &result)
|
||
|
|
Converts an absolute time T to a broken-down time RESULT, assuming the
|
||
|
|
time zone TZ.
|
||
|
|
This function is like 'localtime_r', but relies on the argument TZ instead
|
||
|
|
of an implicit global time zone. */
|
||
|
|
_GL_FUNCDECL_SYS (localtime_rz, struct tm *,
|
||
|
|
(timezone_t __tz, time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result) _GL_ARG_NONNULL ((2, 3)));
|
||
|
|
_GL_CXXALIAS_SYS (localtime_rz, struct tm *,
|
||
|
|
(timezone_t __tz, time_t const *restrict __timer,
|
||
|
|
struct tm *restrict __result));
|
||
|
|
|
||
|
|
/* mktime_z (tz, &tm)
|
||
|
|
Normalizes the broken-down time TM and converts it to an absolute time,
|
||
|
|
assuming the time zone TZ. Returns the absolute time.
|
||
|
|
This function is like 'mktime', but relies on the argument TZ instead
|
||
|
|
of an implicit global time zone. */
|
||
|
|
_GL_FUNCDECL_SYS (mktime_z, time_t,
|
||
|
|
(timezone_t __tz, struct tm *restrict __tm)
|
||
|
|
_GL_ARG_NONNULL ((2)));
|
||
|
|
_GL_CXXALIAS_SYS (mktime_z, time_t,
|
||
|
|
(timezone_t __tz, struct tm *restrict __tm));
|
||
|
|
|
||
|
|
/* Time zone abbreviation strings (returned by 'localtime_rz' or 'mktime_z'
|
||
|
|
in the 'tm_zone' member of 'struct tm') are valid as long as
|
||
|
|
- the 'struct tm' argument is not destroyed or overwritten,
|
||
|
|
and
|
||
|
|
- the 'timezone_t' argument is not freed through tzfree(). */
|
||
|
|
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Convert TM to a time_t value, assuming UTC. */
|
||
|
|
# if @GNULIB_TIMEGM@
|
||
|
|
# if @REPLACE_TIMEGM@
|
||
|
|
# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
|
||
|
|
# undef timegm
|
||
|
|
# define timegm rpl_timegm
|
||
|
|
# endif
|
||
|
|
_GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1)));
|
||
|
|
_GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm));
|
||
|
|
# else
|
||
|
|
# if ! @HAVE_TIMEGM@
|
||
|
|
_GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1)));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm));
|
||
|
|
# endif
|
||
|
|
_GL_CXXALIASWARN (timegm);
|
||
|
|
# endif
|
||
|
|
|
||
|
|
/* Encourage applications to avoid unsafe functions that can overrun
|
||
|
|
buffers when given outlandish struct tm values. Portable
|
||
|
|
applications should use strftime (or even sprintf) instead. */
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
# undef asctime
|
||
|
|
_GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - "
|
||
|
|
"better use strftime (or even sprintf) instead");
|
||
|
|
# endif
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
# undef asctime_r
|
||
|
|
_GL_WARN_ON_USE (asctime_r, "asctime_r can overrun buffers in some cases - "
|
||
|
|
"better use strftime (or even sprintf) instead");
|
||
|
|
# endif
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
# undef ctime
|
||
|
|
_GL_WARN_ON_USE (ctime, "ctime can overrun buffers in some cases - "
|
||
|
|
"better use strftime (or even sprintf) instead");
|
||
|
|
# endif
|
||
|
|
# if defined GNULIB_POSIXCHECK
|
||
|
|
# undef ctime_r
|
||
|
|
_GL_WARN_ON_USE (ctime_r, "ctime_r can overrun buffers in some cases - "
|
||
|
|
"better use strftime (or even sprintf) instead");
|
||
|
|
# endif
|
||
|
|
|
||
|
|
#endif
|