105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* A more-standard <time.h>. 205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 305436638acc7c010349a69c3395f1a57c642dc62Ying Wang Copyright (C) 2007-2012 Free Software Foundation, Inc. 405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 505436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is free software; you can redistribute it and/or modify 605436638acc7c010349a69c3395f1a57c642dc62Ying Wang it under the terms of the GNU General Public License as published by 705436638acc7c010349a69c3395f1a57c642dc62Ying Wang the Free Software Foundation; either version 3, or (at your option) 805436638acc7c010349a69c3395f1a57c642dc62Ying Wang any later version. 905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1005436638acc7c010349a69c3395f1a57c642dc62Ying Wang This program is distributed in the hope that it will be useful, 1105436638acc7c010349a69c3395f1a57c642dc62Ying Wang but WITHOUT ANY WARRANTY; without even the implied warranty of 1205436638acc7c010349a69c3395f1a57c642dc62Ying Wang MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1305436638acc7c010349a69c3395f1a57c642dc62Ying Wang GNU General Public License for more details. 1405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1505436638acc7c010349a69c3395f1a57c642dc62Ying Wang You should have received a copy of the GNU General Public License 1605436638acc7c010349a69c3395f1a57c642dc62Ying Wang along with this program; if not, see <http://www.gnu.org/licenses/>. */ 1705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 1805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if __GNUC__ >= 3 1905436638acc7c010349a69c3395f1a57c642dc62Ying Wang@PRAGMA_SYSTEM_HEADER@ 2005436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 2105436638acc7c010349a69c3395f1a57c642dc62Ying Wang@PRAGMA_COLUMNS@ 2205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 2305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Don't get in the way of glibc when it includes time.h merely to 2405436638acc7c010349a69c3395f1a57c642dc62Ying Wang declare a few standard symbols, rather than to declare all the 2505436638acc7c010349a69c3395f1a57c642dc62Ying Wang symbols. Also, Solaris 8 <time.h> eventually includes itself 2605436638acc7c010349a69c3395f1a57c642dc62Ying Wang recursively; if that is happening, just include the system <time.h> 2705436638acc7c010349a69c3395f1a57c642dc62Ying Wang without adding our own declarations. */ 2805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#if (defined __need_time_t || defined __need_clock_t \ 2905436638acc7c010349a69c3395f1a57c642dc62Ying Wang || defined __need_timespec \ 3005436638acc7c010349a69c3395f1a57c642dc62Ying Wang || defined _@GUARD_PREFIX@_TIME_H) 3105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# @INCLUDE_NEXT@ @NEXT_TIME_H@ 3305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3405436638acc7c010349a69c3395f1a57c642dc62Ying Wang#else 3505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define _@GUARD_PREFIX@_TIME_H 3705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 3805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# @INCLUDE_NEXT@ @NEXT_TIME_H@ 3905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* NetBSD 5.0 mis-defines NULL. */ 4105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <stddef.h> 4205436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4305436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 4405436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4505436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definition of _GL_ARG_NONNULL is copied here. */ 4605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4705436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The definition of _GL_WARN_ON_USE is copied here. */ 4805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 4905436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Some systems don't define struct timespec (e.g., AIX 4.1, Ultrix 4.3). 5005436638acc7c010349a69c3395f1a57c642dc62Ying Wang Or they define it with the wrong member names or define it in <sys/time.h> 5105436638acc7c010349a69c3395f1a57c642dc62Ying Wang (e.g., FreeBSD circa 1997). Stock Mingw does not define it, but the 5205436638acc7c010349a69c3395f1a57c642dc62Ying Wang pthreads-win32 library defines it in <pthread.h>. */ 5305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @TIME_H_DEFINES_STRUCT_TIMESPEC@ 5405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @SYS_TIME_H_DEFINES_STRUCT_TIMESPEC@ 5505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <sys/time.h> 5605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# elif @PTHREAD_H_DEFINES_STRUCT_TIMESPEC@ 5705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# include <pthread.h> 5805436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* The pthreads-win32 <pthread.h> also defines a couple of broken macros. */ 5905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef asctime_r 6005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ctime_r 6105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef gmtime_r 6205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef localtime_r 6305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef rand_r 6405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef strtok_r 6505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 6605436638acc7c010349a69c3395f1a57c642dc62Ying Wang 6705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef __cplusplus 6805436638acc7c010349a69c3395f1a57c642dc62Ying Wangextern "C" { 6905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 7005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 7105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !GNULIB_defined_struct_timespec 7205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef timespec 7305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define timespec rpl_timespec 7405436638acc7c010349a69c3395f1a57c642dc62Ying Wangstruct timespec 7505436638acc7c010349a69c3395f1a57c642dc62Ying Wang{ 7605436638acc7c010349a69c3395f1a57c642dc62Ying Wang time_t tv_sec; 7705436638acc7c010349a69c3395f1a57c642dc62Ying Wang long int tv_nsec; 7805436638acc7c010349a69c3395f1a57c642dc62Ying Wang}; 7905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define GNULIB_defined_struct_timespec 1 8005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 8105436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# ifdef __cplusplus 8305436638acc7c010349a69c3395f1a57c642dc62Ying Wang} 8405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 8505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 8705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 8805436638acc7c010349a69c3395f1a57c642dc62Ying Wang 8905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !GNULIB_defined_struct_time_t_must_be_integral 9005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Per http://austingroupbugs.net/view.php?id=327, POSIX requires 9105436638acc7c010349a69c3395f1a57c642dc62Ying Wang time_t to be an integer type, even though C99 permits floating 9205436638acc7c010349a69c3395f1a57c642dc62Ying Wang point. We don't know of any implementation that uses floating 9305436638acc7c010349a69c3395f1a57c642dc62Ying Wang point, and it is much easier to write code that doesn't have to 9405436638acc7c010349a69c3395f1a57c642dc62Ying Wang worry about that corner case, so we force the issue. */ 9505436638acc7c010349a69c3395f1a57c642dc62Ying Wangstruct __time_t_must_be_integral { 9605436638acc7c010349a69c3395f1a57c642dc62Ying Wang unsigned int __floating_time_t_unsupported : (time_t) 1; 9705436638acc7c010349a69c3395f1a57c642dc62Ying Wang}; 9805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define GNULIB_defined_struct_time_t_must_be_integral 1 9905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 10005436638acc7c010349a69c3395f1a57c642dc62Ying Wang 10105436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Sleep for at least RQTP seconds unless interrupted, If interrupted, 10205436638acc7c010349a69c3395f1a57c642dc62Ying Wang return -1 and store the remaining time into RMTP. See 10305436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.opengroup.org/susv3xsh/nanosleep.html>. */ 10405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @GNULIB_NANOSLEEP@ 10505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @REPLACE_NANOSLEEP@ 10605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 10705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define nanosleep rpl_nanosleep 10805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 10905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (nanosleep, int, 11005436638acc7c010349a69c3395f1a57c642dc62Ying Wang (struct timespec const *__rqtp, struct timespec *__rmtp) 11105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 11205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (nanosleep, int, 11305436638acc7c010349a69c3395f1a57c642dc62Ying Wang (struct timespec const *__rqtp, struct timespec *__rmtp)); 11405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 11505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @HAVE_NANOSLEEP@ 11605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (nanosleep, int, 11705436638acc7c010349a69c3395f1a57c642dc62Ying Wang (struct timespec const *__rqtp, struct timespec *__rmtp) 11805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1))); 11905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 12005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (nanosleep, int, 12105436638acc7c010349a69c3395f1a57c642dc62Ying Wang (struct timespec const *__rqtp, struct timespec *__rmtp)); 12205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 12305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (nanosleep); 12405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 12505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 12605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Return the 'time_t' representation of TP and normalize TP. */ 12705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @GNULIB_MKTIME@ 12805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @REPLACE_MKTIME@ 12905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 13005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define mktime rpl_mktime 13105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 13205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (mktime, time_t, (struct tm *__tp) _GL_ARG_NONNULL ((1))); 13305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (mktime, time_t, (struct tm *__tp)); 13405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 13505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (mktime, time_t, (struct tm *__tp)); 13605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 13705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (mktime); 13805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 13905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 14005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Convert TIMER to RESULT, assuming local time and UTC respectively. See 14105436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.opengroup.org/susv3xsh/localtime_r.html> and 14205436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.opengroup.org/susv3xsh/gmtime_r.html>. */ 14305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @GNULIB_TIME_R@ 14405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @REPLACE_LOCALTIME_R@ 14505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 14605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef localtime_r 14705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define localtime_r rpl_localtime_r 14805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 14905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, 15005436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result) 15105436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 15205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (localtime_r, struct tm *, (time_t const *restrict __timer, 15305436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result)); 15405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 15505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @HAVE_DECL_LOCALTIME_R@ 15605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, 15705436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result) 15805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 15905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 16005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (localtime_r, struct tm *, (time_t const *restrict __timer, 16105436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result)); 16205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 16305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @HAVE_DECL_LOCALTIME_R@ 16405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (localtime_r); 16505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 16605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @REPLACE_LOCALTIME_R@ 16705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 16805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef gmtime_r 16905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define gmtime_r rpl_gmtime_r 17005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 17105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, 17205436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result) 17305436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 17405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (gmtime_r, struct tm *, (time_t const *restrict __timer, 17505436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result)); 17605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 17705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @HAVE_DECL_LOCALTIME_R@ 17805436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, 17905436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result) 18005436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2))); 18105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 18205436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (gmtime_r, struct tm *, (time_t const *restrict __timer, 18305436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __result)); 18405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 18505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @HAVE_DECL_LOCALTIME_R@ 18605436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (gmtime_r); 18705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 18805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 18905436638acc7c010349a69c3395f1a57c642dc62Ying Wang 19005436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Parse BUF as a time stamp, assuming FORMAT specifies its layout, and store 19105436638acc7c010349a69c3395f1a57c642dc62Ying Wang the resulting broken-down time into TM. See 19205436638acc7c010349a69c3395f1a57c642dc62Ying Wang <http://www.opengroup.org/susv3xsh/strptime.html>. */ 19305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @GNULIB_STRPTIME@ 19405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @HAVE_STRPTIME@ 19505436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (strptime, char *, (char const *restrict __buf, 19605436638acc7c010349a69c3395f1a57c642dc62Ying Wang char const *restrict __format, 19705436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __tm) 19805436638acc7c010349a69c3395f1a57c642dc62Ying Wang _GL_ARG_NONNULL ((1, 2, 3))); 19905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 20005436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (strptime, char *, (char const *restrict __buf, 20105436638acc7c010349a69c3395f1a57c642dc62Ying Wang char const *restrict __format, 20205436638acc7c010349a69c3395f1a57c642dc62Ying Wang struct tm *restrict __tm)); 20305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (strptime); 20405436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 20505436638acc7c010349a69c3395f1a57c642dc62Ying Wang 20605436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Convert TM to a time_t value, assuming UTC. */ 20705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @GNULIB_TIMEGM@ 20805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if @REPLACE_TIMEGM@ 20905436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 21005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef timegm 21105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# define timegm rpl_timegm 21205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 21305436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_RPL (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); 21405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_RPL (timegm, time_t, (struct tm *__tm)); 21505436638acc7c010349a69c3395f1a57c642dc62Ying Wang# else 21605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if ! @HAVE_TIMEGM@ 21705436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_FUNCDECL_SYS (timegm, time_t, (struct tm *__tm) _GL_ARG_NONNULL ((1))); 21805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 21905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIAS_SYS (timegm, time_t, (struct tm *__tm)); 22005436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 22105436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_CXXALIASWARN (timegm); 22205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 22305436638acc7c010349a69c3395f1a57c642dc62Ying Wang 22405436638acc7c010349a69c3395f1a57c642dc62Ying Wang/* Encourage applications to avoid unsafe functions that can overrun 22505436638acc7c010349a69c3395f1a57c642dc62Ying Wang buffers when given outlandish struct tm values. Portable 22605436638acc7c010349a69c3395f1a57c642dc62Ying Wang applications should use strftime (or even sprintf) instead. */ 22705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined GNULIB_POSIXCHECK 22805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef asctime 22905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (asctime, "asctime can overrun buffers in some cases - " 23005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "better use strftime (or even sprintf) instead"); 23105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 23205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined GNULIB_POSIXCHECK 23305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef asctime_r 23405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (asctime, "asctime_r can overrun buffers in some cases - " 23505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "better use strftime (or even sprintf) instead"); 23605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 23705436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined GNULIB_POSIXCHECK 23805436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ctime 23905436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (asctime, "ctime can overrun buffers in some cases - " 24005436638acc7c010349a69c3395f1a57c642dc62Ying Wang "better use strftime (or even sprintf) instead"); 24105436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 24205436638acc7c010349a69c3395f1a57c642dc62Ying Wang# if defined GNULIB_POSIXCHECK 24305436638acc7c010349a69c3395f1a57c642dc62Ying Wang# undef ctime_r 24405436638acc7c010349a69c3395f1a57c642dc62Ying Wang_GL_WARN_ON_USE (asctime, "ctime_r can overrun buffers in some cases - " 24505436638acc7c010349a69c3395f1a57c642dc62Ying Wang "better use strftime (or even sprintf) instead"); 24605436638acc7c010349a69c3395f1a57c642dc62Ying Wang# endif 24705436638acc7c010349a69c3395f1a57c642dc62Ying Wang 24805436638acc7c010349a69c3395f1a57c642dc62Ying Wang#endif 249