From 9a0a462ceb4ab96c909b182f3052de2ef13fbe3a Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 11 Sep 1997 12:09:10 +0000 Subject: Update. 1997-09-11 04:36 Ulrich Drepper * db2/db_int.h: Define __set_errno if not yet available. * db2/btree/bt_rec.c: Use __set_errno to set errno value. * db2/clib/getlong.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log_archive.c: Likewise. * elf/dl-profile.c: Implement mcount function. * gmon/gmon.c: Use __profil not profil because of namespace pollution. * gmon/mcount.c: Remove BSD kernel code. Use compare&swap instruction if possible to change state variable. Optimize frompc folding. * gmon/sys/gmon.h (struct gmonparam): Change state field to long int. * sysdeps/i386/i486/atomicity.h: New file. * sysdeps/stub/atomicity.h: New file. * sysdeps/mach/hurd/profil.c: Define function as __profil and make profil weak alias. * sysdeps/posix/profil.c: Likewise. * string/bits/string2.h: New file. * include/bits/string2.h: New file. * string/Makefile (routines): Add mempcpy. (tests): Add inl-tester. Remove _D__NO_STRING_INLINES from CFLAGS-* variables. * sysdeps/generic/mempcpy.c: New file. * sysdeps/generic/memccpy.c: Undef function name to enable definition as macro. * sysdeps/generic/memchr.c: Likewise. * sysdeps/generic/memcmp.c: Likewise. * sysdeps/generic/memmem.c: Likewise. * sysdeps/generic/memmove.c: Likewise. * sysdeps/generic/strcat.c: Likewise. * sysdeps/generic/strchr.c: Likewise. * sysdeps/generic/strcmp.c: Likewise. * sysdeps/generic/strcpy.c: Likewise. * sysdeps/generic/strcspn.c: Likewise. * sysdeps/generic/strlen.c: Likewise. * sysdeps/generic/strncat.c: Likewise. * sysdeps/generic/strncmp.c: Likewise. * sysdeps/generic/strncpy.c: Likewise. * sysdeps/generic/strpbrk.c: Likewise. * sysdeps/generic/strrchr.c: Likewise. * sysdeps/generic/strsep.c: Likewise. * sysdeps/generic/strspn.c: Likewise. * sysdeps/generic/strstr.c: Likewise. * sysdeps/generic/strtok.c: Likewise. * sysdeps/generic/strtok_r.c: Likewise. * sysdeps/i386/memset.c: Likewise. * sysdeps/i386/bits/string.h: Correct a few types and constraints. * sysdeps/i386/i486/bits/string.h: Heavy rewrites and optimizations. * string/stratcliff.c: Undefine __USE_STRING_INLINES. * string/tst-strlen.c: Likewise. * string/string.h: Add prototype for mempcpy. Include bits/string2.h header always if optimizing. * intl/dcgettext.c: Don't unconditionally define stpcpy, only if not yet defined. * intl/l10nflist.c: Likewise. * string/tester.c: Add copyright and make little cleanups. * inet/test_ifindex.c: Change type of ni variable to unsigned int. * locale/programs/ld-ctype.c (struct locale_ctype_t): Change type of fields map_collection_max and map_collection_act to size_t. * nss/libnss_files.map: Group entries. * posix/unistd.h: Add prototype for __setpgid and __profil. * sysdeps/generic/crypt.h: Declare __crypt_r. * sysdeps/i386/bits/select.h: Fix fatal bugs, use correct casts now. * sysdeps/i386/fpu/bits/mathinline.h (isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered): Optimize a bit. * sysdeps/stub/ftruncate.c: Include missing header for prototype. * sysdeps/stub/getdents.c: Likewise. * sysdeps/stub/reboot.c: Likewise. * sysdeps/stub/swapon.c: Likewise. * sysdeps/stub/syscall.c: Likewise. * sysdeps/stub/ualarm.c: Likewise. * sysdeps/stub/usleep.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Don't compile or use opensock if SIOGIFINDEX and SIOGIFNAME are not defined. * sysdeps/unix/sysv/linux/net/if.h: Add IFF_PORTSEL and IFF_AUTOMEDIA according to recent kernel changes. 1997-09-10 21:32 Klaus Espenlaub * Makeconfig: Use $(have-initfini) instead of $(elf) to figure out the installed name of the startup code. (common-generated): Add version.mk. * Makefile (distclean-1): Add glibcbug. * Makerules: Replace -lgcc by $(gnulib). * catgets/Makefile (generated): Add xmalloc.o. * csu/Makefile (generated): Replace align.h and end.h by defs.h to match the generated file. * manual/Makefile (mostlyclean): Add stub-manual and stamp.o. (realclean): Changed to remove chapters-incl[12]. * po/Makefile (realclean): New rule to remove the generated .mo files. * time/Makefile: Only include zonefile dependencies if $(no_deps) is not true to avoid make clean failure when directory time doesn't exist yet. (generated): Add tzselect. * stdio/fgets.c (fgets): Add casts to reduce gcc warning noise. * stdio/internals.c (flushbuf): Likewise. * stdio/linewrap.c (lwupdate): Likewise. * stdio/memstream.c (enlarge_buffer): Likewise. * stdio-common/vfscanf.c (_IO_vfscanf): Likewise. * time/tzset.c (compute_change): Likewise. * misc/init-misc.c (__init_misc): Only declare static if HAVE_GNU_LD is defined. * sysdeps/posix/pipestream.c (FUNC): Change to generate ANSI C style functions. * sysdeps/stub/init-posix.c: Likewise. * sysdeps/stub/profil.c: Likewise. * munch-tmpl.c (__libc_init): Convert to ANSI C style declaration to reduce gcc warning noise. * stdio/glue.c (_filbuf, _flsbuf): Likewise. * stdio/obstream.c (grow, seek, input, init_obstream): Likewise. * stdio/vasprintf.c (enlarge_buffer): Likewise. * sysdeps/generic/sysd-stdio.c (__stdio_read, __stdio_write, __stdio_seek, __stdio_close, __stdio_fileno, __stdio_open, __stdio_reopen): Likewise. * sysdeps/posix/defs.c (_cleanup): Likewise. * time/offtime.c (__offtime): Add cast. * posix/getopt.c: Don't use text_set_element if not defined. * configure.in: Provide a check for underscores before user labels that works even when the compiler used for building doesn't work (like when there is no C library). Use the old way if the compiler works. 1997-09-10 05:08 David S. Miller * sysdeps/unix/sysv/linux/sparc/bits/ioctls.h: The TC* ioctls use 'T' not 't' on SparcLinux. * sysdeps/unix/sysv/linux/sparc/bits/termios.h: tcflag_t is 32 bits. * sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add aliases for _longjmp and siglongjmp. 1997-09-09 Andreas Schwab * libio/stdio.h: Add format attributes to the extra printf and scanf like functions. * stdio/stdio.h: Likewise. 1997-09-09 Andreas Schwab * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Print tablename_val, not tablename_len. * nis/nss_nisplus/nisplus-ethers.c (_nss_nisplus_getntohost_r): Use sprintf instead of sprintf, the string always fits. * nis/nss_nisplus/nisplus-hosts.c (_nss_nisplus_gethostbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_getnetbyaddr_r): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_getprotobynumber_r): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_getrpcbynumber_r): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_getservbynumber_r): Likewise. * nis/nss_nisplus/nisplus-alias.c (_nss_create_tablename): Use __stpcpy, __stpncpy and __strdup instead of public names. * nis/nss_nisplus/nisplus-ethers.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-grp.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-hosts.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-netgrp.c (_nss_nisplus_parse_netgroup): Likewise. * nis/nss_nisplus/nisplus-network.c (_nss_nisplus_parse_netent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-proto.c (_nss_nisplus_parse_protoent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-pwd.c (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-rpc.c (_nss_nisplus_parse_rpcent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-service.c (_nss_nisplus_parse_servent): Likewise. (_nss_create_tablename): Likewise. * nis/nss_nisplus/nisplus-spwd.c (_nss_create_tablename): Likewise. * libc.map: Export __stpcpy and __strdup. 1997-09-09 Andreas Schwab * math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c, CFLAGS-test-ldouble.c): Pass -ffloat-store to avoid excessive precision. 1997-09-09 Andreas Schwab * include/rpc/auth_des.h: New file. 1997-09-09 Paul Eggert * time/mktime.c (__mktime_internal): Declare sec_requested even if !LEAP_SECONDS_POSSIBLE, since it's needed at the end when checking for time_t overflow. 1997-09-09 22:11 Ulrich Drepper * sysdeps/posix/getcwd.c: Correct test for too small buffer. Reported by Erik Troan . * elf/dl-close.c: Include , not . * elf/dl-open.c: Likewise. 1997-09-07 17:09 Richard Henderson * sysdeps/alpha/Makefile: Kill setjmp_aux. * sysdeps/alpha/bits/setjmp.h: Rewrite in terms of an array. * sysdeps/alpha/__longjmp.c: Remove. * sysdeps/alpha/setjmp_aux.c: Remove. * sysdeps/alpha/__longjmp.S: New file. * sysdeps/alpha/bsd-_setjmp.S: Stub out. * sysdeps/alpha/bsd-setjmp.S: Likewise. * sysdeps/alpha/setjmp.S: Do the work; don't call __setjmp_aux. Move _setjmp and setjmp from bsd-*.S. 1997-09-06 20:20 Ulrich Drepper * include/rpc/auth.h: New file. * include/rpc/auth_unix.h: New file. 1997-09-06 Paul Eggert Fix gmtime so that it reports leap seconds when TZ indicates that leap seconds are desired. * time/gmtime.c (): Remove unnecessary include. (gmtime): Put after gmtime_r, to help the compiler inline. (__tz_convert): New decl. (gmtime_r): Use __tz_convert instead of __offtime, so that leap seconds are handled correctly. * time/localtime.c (, ): Remove includes that are now unnecessary. (__tzset_internal, __tz_compute, __tzfile_compute, __use_tzfile, __tzset_lock): Remove extern decls that are now unnecessary. (localtime_internal): Moved to __tz_convert in tzset.c. so that localtime and gmtime can both use it easily. (localtime): Put after localtime_r, to help the compiler inline. (localtime_r): Use __tz_convert instead of localtime_internal. * time/strftime.c (__tz_compute): Remove unused (and now incorrect) decl. * time/tzfile.c (__tzfile_compute): New arg USE_LOCALTIME. * time/tzset.c (): Include. (_tmbuf): New decl. (__tzfile_compute): New function. (tz_compute): Renamed from __tz_compute. No longer extern. Remove redundant call to tzset_internal. (tzset_internal): Renamed from __tzset_internal. No longer extern. (tzset_lock): Renamed from __tzset_lock. No longer extern. (__tz_convert): New function, containing functionality of old localtime_internal function, plus locking and optional UTC. 1997-09-06 Paul Eggert * time/tzfile.c (__tzfile_read): Don't read a file if TZ is the empty string, just use UTC without leap seconds. This is for compatibility with the Olson code. 1997-09-06 Paul Eggert * time/tzset.c (__tzname_max): Lock tz data structures before invoking tzset_internal. * time/tzfile.c: Define compute_tzname_max statically. 1997-09-07 10:57 Thorsten Kukuk * nis/nis_call.c: Remove not longer necessary HAVE_SECURE_RPC ifdefs. * nis/nis_intern.h: Likewise. * nis/nss_nis/nis-publickey.c: Likewise. * nis/nss_nisplus/nisplus-publickey.c: Likewise. * nis/ypclnt.c: Likewise. * sunrpc/auth_des.c: Don't dereference NULL pointer, initialize ad->ad_timediff. * sunrpc/auth_none.c: Don't define our own prototypes, use the one from the header files. * sunrpc/auth_unix.c: Likewise. * sunrpc/clnt_raw.c: Likewise. * sunrpc/clnt_tcp.c: Likewise. * sunrpc/rpc_cmsg.c: Likewise. * sunrpc/key_call.c: Fix signal handling. * sunrpc/openchild.c: Don't use /bin/sh to start /usr/etc/keyenvoy, or we will get a deadlock with NIS+. * sunrpc/rpc/auth.h: Add prototype for xdr_opaque_auth, don't define HAVE_SECURE_RPC. 1997-09-07 15:51 Ulrich Drepper * sysdeps/i386/bits/select.h [__GNUC__] (__FD_ZERO, __FD_SET, __FD_CLR, __FD_ISSET): Use correct casts to address array correctly. Reported by urbanw@cs.umu.se. 1997-09-07 05:07 Ulrich Drepper * elf/dl-close.c: Include , not . * elf/dl-open.c: Likewise. * sysdeps/i386/memset.c: Undefine memset in case the header with the optimized functions is included. Patches by NIIBE Yutaka . * sysdeps/i386/bits/string.h [__PIC__] (strcspn, strspn, strpbrk, strsep): Use register for second parameter. * sysdeps/i386/i486/bits/string.h: Likewise. Reported by NIIBE Yutaka . 1997-09-03 09:48 Geoff Keating * math/libm-test.c: Change various tolerances to match what the tested routines can actually provide. * math/Makefile: Add new tests. * math/atest-sincos.c: New file. * math/atest-exp.c: New file. * csu/Makefile: Give initfini.s and initfiniS.s their own CFLAGS-* macros so they can be overridden. * sysdeps/powerpc/Makefile [subdir=csu]: Override flags for initfiniS.s to use -fpic instead of -fPIC, because the sed script breaks otherwise. * sysdeps/powerpc/Makefile [build-shared]: Use -fpic not -fPIC for efficiency. * sysdeps/powerpc/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE): Don't use register 0, to let _mcount be in a shared object. * sysdeps/powerpc/dl-machine.h: Use full sentences in comments. Generally clean up. Suppress some code we don't need when relocating ld.so. * sysdeps/powerpc/test-arith.c: Change loop indices to size_t when appropriate to suppress gcc warning. * resolv/res_send.c: Suppress warning. * sunrpc/xdr_sizeof.c: Suppress warning. * FAQ: Add ppc-linux. * manual/maint.texi: Add ppc-linux. Explain that gcc can't build it yet. * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Correct for current kernels. 1997-08-15 07:45 Geoff Keating * stdlib/fmtmsg.c: Use two parameters for __libc_once_define. * sysdeps/i386/machine-gmon.h: Correct typo. * sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Change to match kernel. * sysdeps/generic/dl-sysdep.c: Add hook for bizzare PPC argument hack. * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Rewrite to use sysdeps/linux/dl-sysdep.c. * sysdeps/powerpc/Makefile [subdir=gmon]: Compile ppc-mcount. * sysdeps/powerpc/machine-gmon.h: Use ppc-mcount. * sysdeps/powerpc/ppc-mcount: New file. The following are mostly changes to allow profiling: * sysdeps/powerpc/add_n.S: Added. * sysdeps/powerpc/add_n.s: Removed. * sysdeps/powerpc/addmul_1.S: Added. * sysdeps/powerpc/addmul_1.s: Removed. * sysdeps/powerpc/bsd-_setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/bsd-setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/lshift.S: Added. * sysdeps/powerpc/lshift.s: Removed. * sysdeps/powerpc/memset.S: Added. * sysdeps/powerpc/memset.s: Removed. * sysdeps/powerpc/mul_1.S: Added. * sysdeps/powerpc/mul_1.s: Removed. * sysdeps/powerpc/rshift.S: Added. * sysdeps/powerpc/rshift.s: Removed. * sysdeps/powerpc/s_copysign.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/s_fabs.S: Use ENTRY, END, weak_alias macros. * sysdeps/powerpc/setjmp.S: Use JUMPTARGET macro. * sysdeps/powerpc/strchr.S: Added. * sysdeps/powerpc/strchr.s: Removed. * sysdeps/powerpc/strcmp.S: Added. * sysdeps/powerpc/strcmp.s: Removed. * sysdeps/powerpc/strlen.S: Added. * sysdeps/powerpc/strlen.s: Removed. * sysdeps/powerpc/sub_n.S: Added. * sysdeps/powerpc/sub_n.s: Removed. * sysdeps/powerpc/submul_1.S: Added. * sysdeps/powerpc/submul_1.s: Removed. * sysdeps/unix/sysv/linux/powerpc/_exit.S: Removed. * sysdeps/unix/sysv/linux/powerpc/brk.S: Added. * sysdeps/unix/sysv/linux/powerpc/brk.c: Removed. * sysdeps/unix/sysv/linux/powerpc/clone.S: Use new macros. Fix various bugs. Document that it isn't tested. * sysdeps/unix/sysv/linux/powerpc/sigreturn.S: Make look like sysdeps/unix/_exit.S. * sysdeps/unix/sysv/linux/powerpc/socket.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/syscall.S: Use new macros. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Define some new macros to make assembler (possibly) more portable, allow profiling, etc. --- time/Makefile | 3 ++ time/README | 4 +- time/gmtime.c | 29 +++++++-------- time/localtime.c | 99 +++++++------------------------------------------- time/mktime.c | 2 +- time/offtime.c | 6 +-- time/strftime.c | 1 - time/tzfile.c | 30 ++++++++------- time/tzset.c | 109 +++++++++++++++++++++++++++++++++++++++++++++---------- 9 files changed, 142 insertions(+), 141 deletions(-) (limited to 'time') diff --git a/time/Makefile b/time/Makefile index 123ba2d08a..c4945f7e4b 100644 --- a/time/Makefile +++ b/time/Makefile @@ -59,7 +59,9 @@ define nl endef +ifneq ($(no_deps),t) -include $(addprefix $(objpfx)z.,$(tzfiles)) +endif # Make these absolute file names. installed-localtime-file := $(firstword $(filter /%,$(inst_localtime-file)) \ @@ -80,6 +82,7 @@ endif ifeq ($(have-ksh),yes) install-others += $(inst_zonedir)/iso3166.tab $(inst_zonedir)/zone.tab install-bin += tzselect +generated += tzselect endif include ../Rules diff --git a/time/README b/time/README index c15f4f6f63..c189555c40 100644 --- a/time/README +++ b/time/README @@ -3,7 +3,7 @@ The source files `zdump.c' `tzselect.ksh' `checktab.awk' -come from the tzcode1997f package by Arthur David Olsen et.al. +come from the tzcode1997g package by Arthur David Olsen et.al. The files `africa' @@ -25,4 +25,4 @@ The files `zone.tab' `leapseconds' `yearistype' -come from the tzdata1997g package by Arthur David Olsen et.al. +come from the tzdata1997h package by Arthur David Olsen et.al. diff --git a/time/gmtime.c b/time/gmtime.c index f9627e7b62..2b388befb1 100644 --- a/time/gmtime.c +++ b/time/gmtime.c @@ -1,4 +1,5 @@ -/* Copyright (C) 1991, 1993, 1995, 1996, 1997 Free Software Foundation, Inc. +/* Convert `time_t' to `struct tm' in UTC. + Copyright (C) 1991, 1993, 1995, 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -16,19 +17,14 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include #include /* Defined in localtime.c. */ extern struct tm _tmbuf; -/* Return the `struct tm' representation of *T in UTC. */ -struct tm * -gmtime (t) - const time_t *t; -{ - return __gmtime_r (t, &_tmbuf); -} +/* Prototype for the internal function to get information based on TZ. */ +extern struct tm *__tz_convert __P ((const time_t *t, int use_localtime, + struct tm *tp)); /* Return the `struct tm' representation of *T in UTC, @@ -38,12 +34,15 @@ __gmtime_r (t, tp) const time_t *t; struct tm *tp; { - __offtime (t, 0L, tp); + return __tz_convert (t, 0, tp); +} +weak_alias (__gmtime_r, gmtime_r) - tp->tm_isdst = 0; - tp->tm_gmtoff = 0L; - tp->tm_zone = "GMT"; - return tp; +/* Return the `struct tm' representation of *T in UTC. */ +struct tm * +gmtime (t) + const time_t *t; +{ + return __tz_convert (t, 0, &_tmbuf); } -weak_alias (__gmtime_r, gmtime_r) diff --git a/time/localtime.c b/time/localtime.c index 6b7c9f394c..3d8d8fbd10 100644 --- a/time/localtime.c +++ b/time/localtime.c @@ -17,106 +17,33 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include #include -#include /* The C Standard says that localtime and gmtime return the same pointer. */ struct tm _tmbuf; /* Prototype for the internal function to get information based on TZ. */ -extern void __tzset_internal __P ((int always)); -extern int __tz_compute __P ((time_t timer, struct tm *tp)); -extern int __tzfile_compute __P ((time_t timer, - long int *leap_correct, int *leap_hit)); +extern struct tm *__tz_convert __P ((const time_t *t, int use_localtime, + struct tm *tp)); -extern int __use_tzfile; -/* This lock is defined in tzset.c and locks all the data defined there - and in tzfile.c; the internal functions do no locking themselves. - This lock is only taken here and in `tzset'. */ -__libc_lock_define (extern, __tzset_lock) - - -/* Return the `struct tm' representation of *TIMER in the local timezone. */ -static struct tm * -localtime_internal (const time_t *timer, struct tm *tp) -{ - long int leap_correction; - int leap_extra_secs; - - if (timer == NULL) - { - __set_errno (EINVAL); - return NULL; - } - - if (__use_tzfile) - { - if (! __tzfile_compute (*timer, &leap_correction, &leap_extra_secs)) - tp = NULL; - } - else - { - tp = __gmtime_r (timer, tp); - if (tp && ! __tz_compute (*timer, tp)) - tp = NULL; - leap_correction = 0L; - leap_extra_secs = 0; - } - - if (tp) - { - __offtime (timer, __timezone - leap_correction, tp); - tp->tm_sec += leap_extra_secs; - tp->tm_isdst = __daylight; - tp->tm_gmtoff = __timezone; - tp->tm_zone = __tzname[__daylight]; - } - - return tp; -} - - -/* POSIX.1 8.3.7.2 says that localtime_r is not required to set - tzname. This is a good idea since this allows at least a bit more - parallelism. */ +/* Return the `struct tm' representation of *T in local time, + using *TP to store the result. */ struct tm * -localtime (timer) - const time_t *timer; +__localtime_r (t, tp) + const time_t *t; + struct tm *tp; { - struct tm *result; - - __libc_lock_lock (__tzset_lock); - - /* Update internal database according to current TZ setting. */ - __tzset_internal (1); - - result = localtime_internal (timer, &_tmbuf); - - __libc_lock_unlock (__tzset_lock); - - return result; + return __tz_convert (t, 1, tp); } +weak_alias (__localtime_r, localtime_r) +/* Return the `struct tm' representation of *T in local time. */ struct tm * -__localtime_r (timer, tp) - const time_t *timer; - struct tm *tp; +localtime (t) + const time_t *t; { - struct tm *result; - - __libc_lock_lock (__tzset_lock); - - /* Make sure the database is initialized. */ - __tzset_internal (0); - - result = localtime_internal (timer, tp); - - __libc_lock_unlock (__tzset_lock); - - return result; + return __tz_convert (t, 1, &_tmbuf); } -weak_alias (__localtime_r, localtime_r) diff --git a/time/mktime.c b/time/mktime.c index 5012888967..1573cc79a9 100644 --- a/time/mktime.c +++ b/time/mktime.c @@ -225,10 +225,10 @@ __mktime_internal (tp, convert, offset) [mon_remainder + 12 * negative_mon_remainder]) + mday - 1); + int sec_requested = sec; #if LEAP_SECONDS_POSSIBLE /* Handle out-of-range seconds specially, since ydhms_tm_diff assumes every minute has 60 seconds. */ - int sec_requested = sec; if (sec < 0) sec = 0; if (59 < sec) diff --git a/time/offtime.c b/time/offtime.c index f13c8a38ae..a4b59ed209 100644 --- a/time/offtime.c +++ b/time/offtime.c @@ -33,8 +33,8 @@ __offtime (t, offset, tp) long int offset; struct tm *tp; { - register long int days, rem, y; - register const unsigned short int *ip; + long int days, rem, y; + const unsigned short int *ip; days = *t / SECS_PER_DAY; rem = *t % SECS_PER_DAY; @@ -75,7 +75,7 @@ __offtime (t, offset, tp) tp->tm_year = y - 1900; tp->tm_yday = days; ip = __mon_yday[__isleap(y)]; - for (y = 11; days < ip[y]; --y) + for (y = 11; days < (long int) ip[y]; --y) continue; days -= ip[y]; tp->tm_mon = y; diff --git a/time/strftime.c b/time/strftime.c index 891d301f5c..4ecbc5a519 100644 --- a/time/strftime.c +++ b/time/strftime.c @@ -132,7 +132,6 @@ extern char *tzname[]; #ifdef _LIBC # define gmtime_r __gmtime_r # define localtime_r __localtime_r -extern int __tz_compute __P ((time_t timer, const struct tm *tm)); # define tzname __tzname # define tzset __tzset #else diff --git a/time/tzfile.c b/time/tzfile.c index aeec637b3b..9289de63a0 100644 --- a/time/tzfile.c +++ b/time/tzfile.c @@ -112,8 +112,8 @@ __tzfile_read (const char *file) /* No user specification; use the site-wide default. */ file = TZDEFAULT; else if (*file == '\0') - /* User specified the empty string; use UTC explicitly. */ - file = "Universal"; + /* User specified the empty string; use UTC with no leap seconds. */ + return; else { /* We must not allow to read an arbitrary file in a setuid @@ -411,19 +411,23 @@ find_transition (time_t timer) } int -__tzfile_compute (time_t timer, long int *leap_correct, int *leap_hit) +__tzfile_compute (time_t timer, int use_localtime, + long int *leap_correct, int *leap_hit) { - struct ttinfo *info; register size_t i; - info = find_transition (timer); - __daylight = info->isdst; - __timezone = info->offset; - for (i = 0; i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]); - ++i) - __tzname[types[i].isdst] = &zone_names[types[i].idx]; - if (info->isdst < sizeof (__tzname) / sizeof (__tzname[0])) - __tzname[info->isdst] = &zone_names[info->idx]; + if (use_localtime) + { + struct ttinfo *info = find_transition (timer); + __daylight = info->isdst; + __timezone = info->offset; + for (i = 0; + i < num_types && i < sizeof (__tzname) / sizeof (__tzname[0]); + ++i) + __tzname[types[i].isdst] = &zone_names[types[i].idx]; + if (info->isdst < sizeof (__tzname) / sizeof (__tzname[0])) + __tzname[info->isdst] = &zone_names[info->idx]; + } *leap_correct = 0L; *leap_hit = 0; @@ -455,7 +459,7 @@ __tzfile_compute (time_t timer, long int *leap_correct, int *leap_hit) return 1; } -void +static void compute_tzname_max (size_t chars) { extern size_t __tzname_cur_max; /* Defined in tzset.c. */ diff --git a/time/tzset.c b/time/tzset.c index 49935c04d3..6c16091ef5 100644 --- a/time/tzset.c +++ b/time/tzset.c @@ -17,6 +17,8 @@ Boston, MA 02111-1307, USA. */ #include +#include +#include #include #include #include @@ -26,15 +28,19 @@ /* Defined in mktime.c. */ extern const unsigned short int __mon_yday[2][13]; +/* Defined in localtime.c. */ +extern struct tm _tmbuf; + #define NOID #include "tzfile.h" extern int __use_tzfile; extern void __tzfile_read __P ((const char *file)); +extern int __tzfile_compute __P ((time_t timer, int use_localtime, + long int *leap_correct, int *leap_hit)); extern void __tzfile_default __P ((const char *std, const char *dst, long int stdoff, long int dstoff)); extern char * __tzstring __P ((const char *string)); -extern int __tz_compute __P ((time_t timer, const struct tm *tm)); char *__tzname[2] = { (char *) "GMT", (char *) "GMT" }; int __daylight = 0; @@ -44,6 +50,9 @@ weak_alias (__tzname, tzname) weak_alias (__daylight, daylight) weak_alias (__timezone, timezone) +/* This locks all the state variables in tzfile.c and this file. */ +__libc_lock_define (static, tzset_lock) + #define min(a, b) ((a) < (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b)) @@ -74,6 +83,8 @@ static tz_rule tz_rules[2]; static int compute_change __P ((tz_rule *rule, int year)); +static int tz_compute __P ((time_t timer, const struct tm *tm)); +static void tzset_internal __P ((int always)); /* Header for a list of buffers containing time zone strings. */ struct tzstring_head @@ -139,9 +150,8 @@ __tzstring (string) static char *old_tz = NULL; /* Interpret the TZ envariable. */ -void __tzset_internal __P ((int always)); -void -__tzset_internal (always) +static void +tzset_internal (always) int always; { static int is_initialized = 0; @@ -426,7 +436,11 @@ size_t __tzname_cur_max; long int __tzname_max () { - __tzset_internal (0); + __libc_lock_lock (tzset_lock); + + tzset_internal (0); + + __libc_lock_unlock (tzset_lock); return __tzname_cur_max; } @@ -473,8 +487,9 @@ compute_change (rule, year) case M: /* Mm.n.d - Nth "Dth day" of month M. */ { - register int i, d, m1, yy0, yy1, yy2, dow; - register const unsigned short int *myday = + unsigned int i; + int d, m1, yy0, yy1, yy2, dow; + const unsigned short int *myday = &__mon_yday[__isleap (year)][rule->m]; /* First add SECSPERDAY for each day in months before M. */ @@ -496,7 +511,7 @@ compute_change (rule, year) d += 7; for (i = 1; i < rule->n; ++i) { - if (d + 7 >= myday[0] - myday[-1]) + if (d + 7 >= (int) myday[0] - myday[-1]) break; d += 7; } @@ -519,13 +534,11 @@ compute_change (rule, year) /* Figure out the correct timezone for *TIMER and TM (which must be the same) and set `__tzname', `__timezone', and `__daylight' accordingly. Return nonzero on success, zero on failure. */ -int -__tz_compute (timer, tm) +static int +tz_compute (timer, tm) time_t timer; const struct tm *tm; { - __tzset_internal (0); - if (! compute_change (&tz_rules[0], 1900 + tm->tm_year) || ! compute_change (&tz_rules[1], 1900 + tm->tm_year)) return 0; @@ -548,20 +561,15 @@ __tz_compute (timer, tm) return 1; } -#include - -/* This locks all the state variables in tzfile.c and this file. */ -__libc_lock_define (, __tzset_lock) - /* Reinterpret the TZ environment variable and set `tzname'. */ #undef tzset void __tzset (void) { - __libc_lock_lock (__tzset_lock); + __libc_lock_lock (tzset_lock); - __tzset_internal (1); + tzset_internal (1); if (!__use_tzfile) { @@ -570,6 +578,67 @@ __tzset (void) __tzname[1] = (char *) tz_rules[1].name; } - __libc_lock_unlock (__tzset_lock); + __libc_lock_unlock (tzset_lock); } weak_alias (__tzset, tzset) + +/* Return the `struct tm' representation of *TIMER in the local timezone. + Use local time if USE_LOCALTIME is nonzero, UTC otherwise. */ +struct tm * +__tz_convert (const time_t *timer, int use_localtime, struct tm *tp) +{ + long int leap_correction; + int leap_extra_secs; + + if (timer == NULL) + { + __set_errno (EINVAL); + return NULL; + } + + __libc_lock_lock (tzset_lock); + + /* Update internal database according to current TZ setting. + POSIX.1 8.3.7.2 says that localtime_r is not required to set tzname. + This is a good idea since this allows at least a bit more parallelism. + By analogy we apply the same rule to gmtime_r. */ + tzset_internal (tp == &_tmbuf); + + if (__use_tzfile) + { + if (! __tzfile_compute (*timer, use_localtime, + &leap_correction, &leap_extra_secs)) + tp = NULL; + } + else + { + __offtime (timer, 0, tp); + if (! tz_compute (*timer, tp)) + tp = NULL; + leap_correction = 0L; + leap_extra_secs = 0; + } + + if (tp) + { + if (use_localtime) + { + tp->tm_isdst = __daylight; + tp->tm_zone = __tzname[__daylight]; + tp->tm_gmtoff = __timezone; + } + else + { + tp->tm_isdst = 0; + tp->tm_zone = "GMT"; + tp->tm_gmtoff = 0L; + } + + __offtime (timer, tp->tm_gmtoff - leap_correction, tp); + tp->tm_sec += leap_extra_secs; + } + + __libc_lock_unlock (tzset_lock); + + return tp; +} -- cgit 1.4.1