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16 Commits

Author SHA1 Message Date
Freddie Chopin 3305f35570 Fix 32-bit overflow in mktime() when time_t is 64-bits long 
When converting number of days since epoch (32-bits) to seconds,
calculations using 32-bit `long` overflow for years above 2038. Solve
this by casting number of days to `time_t` just before final
multiplication.

Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>
 2018-05-29 15:27:03 +02:00
Yaakov Selkowitz 9087163804 ansification: remove _DEFUN 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2018-01-17 11:47:26 -06:00
Yaakov Selkowitz 0bda30e1ff ansification: remove _CONST 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2018-01-17 11:47:08 -06:00
Yaakov Selkowitz 5aa2434de0 time: remove TRAD_SYNOPSIS 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2017-12-01 03:41:53 -06:00
Corinna Vinschen b3a09ae34b Avoid excessive locking and calling tzset in time functions. 
* libc/time/lcltime_r.c (localtime_r): Call _tzset_unlocked inside
	TZ lock.
	* libc/time/mktime.c (mktime):  Ditto.
	* libc/time/strftime.c (strftime, wcsftime): Ditto.  Guard against
	calling _tzset_unlocked more than once (baring recursion).

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
 2015-04-23 21:57:08 +02:00
Craig Howland 382fa90fe1 Move tzset calls to time functions. 
* libc/stdlib/setenv_r.c (_setenv_r): Remove tzset() call for TZ
	definition.
	* libc/time/lcltime_r.c (localtime_r): Add tzset() call
	* libc/time/mktime.c (mktime):  Ditto.
	* libc/time/strftime.c (strftime, wcsftime): Ditto.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
 2015-04-23 21:57:08 +02:00
Corinna Vinschen f13f2da4ee * libc/time/mktm_r.c: (__tzcalc_limits) Fix Julian day calculation. 
* libc/time/mktime.c: (mktime) Fix tm_yday, tm_mday updating when
	timezone causes roll over.
 2011-10-11 11:28:05 +00:00
Corinna Vinschen 6648762916 * libc/time/mktime.c (validate_structure): Account for tm_mon possibly 
being given as negative.
	(mktime): Set tm_isdst=0 when !daylight.
 2011-08-19 14:14:18 +00:00
Corinna Vinschen 7e055fdf39 * libc/time/mktime.c (mktime): Lock global timezone info while 
accessing it.
 2011-06-27 10:13:11 +00:00
Jeff Johnston 7dd0c33097 2008-12-11 Craig Howland <howland@LGSInnovations.com> 
* libc/include/sys/lock.h:  Add void cast to avoid "statement has no
        effect" warnings from gcc.
        * libc/include/sys/stdio.h:  Ditto.
        * libc/include/sys/time.h:  Correct gettimeofday() prototype.
        * libc/stdlib/__exp10.c:  Add #include "std.h" for function prototype.
        * libc/stdlib/__ten_mu.c:  Ditto.
        * libc/stdlib/std.h:  Correct __exp10's ANSI prototype.
        * libc/stdlib/ldtoa.c:  Change eiisinf definition to ANSI form.  (Are
        already others in file without _ansi method, so did not bother.)
        * libc/stdlib/system.c:  Use _ansi forms for function prototypes and
        definitions.
        * libc/time/mktime.c:  Ditto.
        * libc/misc/__dprintf.c:  Ditto.
        * libc/include/stdio.h:  Add function prototypes for _fgetc_r,
        _fgetpos_r, _fsetpos_r, _freopen_r, _rewind_r, freopen64, _freopen64_r,
        _funopen_r, and _fopencookie_r.
        * libc/include/reent.h:  Add function prototype for _stat64_r, align
        _execve_r prototype with POSIX definition for execve.
        * libc/reent/execr.c:  Align function prototype with POSIX definition.
        * libc/stdio/asniprintf.c:  Add #include "local.h".
        * libc/stdio/vasniprintf.c:  Ditto.
        * libc/stdio/fread.c:  Remove unused variable newcount.
        * libc/stdio/local.h:  Add function prototype for __sccl.
        * libc/stdio/open_memstream.c:  Remove unused variable flags.
        * libc/stdio/vfscanf.c:  Proper prototyping for ccfn, remove prototype
        for __sccl since now in local.h.
        * libc/string/memcpy.c:  Add #include <string.h> (for real and for
        traditional synopsis), remove extraneous stddef.h and limits.h.
        * libc/syscalls/sysclose.c:  Add #include <unistd.h>.
        * libc/syscalls/sysfork.c:  Ditto.
        * libc/syscalls/sysgetpid.c:  Ditto.
        * libc/syscalls/sysexecve.c:  Add #include <unistd.h>, align function
        prototype with POSIX definition.
        * libc/syscalls/sysfstat.c:  Add #include <sys/stat.h>.
        * libc/syscalls/sysgettod.c:  Correct sys/times.h to sys/time.h.
        * libc/syscalls/syskill.c:  Add #include <signal.h>.
        * libc/syscalls/syslink.c:  Add #include <unistd.h>, fix prototype.
        * libc/syscalls/sysunlink.c:  Ditto.
        * libc/syscalls/sysstat.c:  Add #include <sys/stat.h>, fix prototype.
        * libc/syscalls/syswait.c:  Add #include <sys/wait.h>, fix prototype.
 2008-12-11 17:27:56 +00:00
Jeff Johnston b6ab3057f6 2008-08-28 Craig Howland <howland@LGSInnovations.com> 
* libc/time/mktime.c (mktime): Fix tm_isdst value usage (allowing
        any positive value from user (per std) rather than depending
        upon 1).
 2008-08-28 18:18:12 +00:00
Jeff Johnston 1139537a25 2005-02-25 Eric Blake <ebb9@byu.net> 
* libc/include/time.h (__tzrule_struct): Make offset long, since
        a 16-bit int overflows on a 12-hour offset.
        * libc/sys/linux/include/time.h: Ditto.
        * libc/time/mktime.c (mktime): Use new type of __tzrule.offset.
        * libc/time/mktm_r.c: Ditto.
        * libc/time/gettzinfo.c: Ditto.
        * libc/time/strftime.c (strftime): Fix '%x' to deal with negative
        years.  Fix '%z' to use long, not int.
 2005-02-25 22:31:21 +00:00
Jeff Johnston 6b9a74f9e6 2005-02-23 Jeff Johnston <jjohnstn@redhat.com> 
* libc/include/time.h [!CYGWIN](_timezone): Change to long.
        (__tzrule_type, __tzinfo_type): New types.
        (__gettzinfo): New function.
        * libc/sys/linux/include/time.h: Ditto.
        * libc/time/Makefile.am: Add gettzinfo.c.
        * libc/time/Makefile.in: Regenerated.
        * libc/time/local.h: Moved __tzrule_type to time.h.
        * libc/time/mktime.c: Call __gettzinfo to reference
        __tznorth, __tzyear, and __tzrule array.
        * libc/time/mktm_r.c: Ditto.
        * libc/time/strftime.c: Ditto.
        * libc/time/tzset_r.c: Ditto.  Also remove definition
        of __tzrule which is now in gettzinfo.c.  Change _timezone
        references to not cast to time_t.
        * libc/time/gettzinfo.c: New file.
 2005-02-23 19:08:58 +00:00
Jeff Johnston 10d0021609 2002-04-17 Jeff Johnston <jjohnstn@redhat.com> 
*  libc/include/time.h (tzset, _tzset_r): Added prototypes.
        (strptime): Moved prototype to be within !__STRICT_ANSI__.
        (_tzname, _daylight, _timezone): No long __CYGWIN__ only.
        (tzname): Defined for all platforms.
        (daylight, timezone): Defined only for CYGWIN.
        *  libc/sys/linux/machine/i386/crt0.c: Add call to tzset() after
        environment set up.
        * libc/stdlib/setenv_r.c (_setenv_r): Call tzset() if the TZ
        environment variable is set.
        *  libc/time/Makefile.am: Add support for tzset.c, tzlock.c, and
        tzset_r.c.
        *  libc/time/Makefile.in: Regenerated.
        *  libc/time/gmtime.c (gmtime): Changed to call gmtime_r.
        *  libc/time/gmtime_r.c (gmtime_r): Changed to call _mktm_r.
        *  libc/time/lcltime_r.c (lcltime_r): Ditto.
        *  libc/time/local.h: New local header file.
        *  libc/time/mktime.c (mktime): Add timezone support.
        *  libc/time/mktm_r.c: New file which is the common engine
        for gmtime_r and lcltime_r.  This code has timezone support.
        *  libc/time/strftime.c (strftime): Add %Z timezone support.
        *  libc/time/tzlock.c: New file containing timezone lock stubs.
        *  libc/time/tzset.c: New file containing tzset() routine.
        *  libc/time/tzset_r.c: New file containing _tzset_r and
        internal routine for calculating timezone changes for specified year.
 2002-04-17 21:23:31 +00:00
Jeff Johnston 6249353a4c 2001-03-05 Jeff Johnston <jjohnstn@redhat.com> 
* libc/time/mktime.c: Add L suffix to _SEC_IN_xxxx constants.
 2001-03-05 21:07:20 +00:00
Christopher Faylor 8a0efa53e4 import newlib-2000-02-17 snapshot 2000-02-17 19:39:52 +00:00