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c5598d4721
* sysdeps/unix/make-syscalls.sh: Generate libc_hidden_def or libc_hidden_weak for every system call symbol defined. * include/time.h: Use libc_hidden_proto for time, asctime, mktime, timelocal, localtime, strftime. * time/asctime.c: Add libc_hidden_def. * time/mktime.c: Likewise. * time/localtime.c: Likewise. * time/strftime.c: Likewise. * time/strptime.c: Likewise. * sysdeps/generic/time.c: Likewise. * sysdeps/unix/time.c: Likewise. * sysdeps/unix/sysv/i386/time.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/time.S: Likewise. * include/arpa/inet.h: Use libc_hidden_proto for inet_ntop, inet_pton. inet_makeaddr, inet_netof, inet_addr, __inet_addr. * resolv/inet_ntop.c: Likewise. * resolv/inet_pton.c: Likewise. * inet/inet_mkadr.c: Add libc_hidden_def. * inet/inet_netof.c: Likewise. * resolv/inet_addr.c: Likewise. * include/libc-symbols.h: Remove `defined HAVE_BROKEN_ALIAS_ATTRIBUTE' clauses from conditionals for now. Will have to be fixed later for older compilers.
1383 lines
33 KiB
C
1383 lines
33 KiB
C
/* Copyright (C) 1991-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef _LIBC
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# define HAVE_LIMITS_H 1
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# define HAVE_MBLEN 1
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# define HAVE_MBRLEN 1
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# define HAVE_STRUCT_ERA_ENTRY 1
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# define HAVE_TM_GMTOFF 1
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# define HAVE_TM_ZONE 1
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# define HAVE_TZNAME 1
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# define HAVE_TZSET 1
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# define MULTIBYTE_IS_FORMAT_SAFE 1
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# define STDC_HEADERS 1
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# include "../locale/localeinfo.h"
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#endif
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#if defined emacs && !defined HAVE_BCOPY
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# define HAVE_MEMCPY 1
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#endif
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#include <ctype.h>
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#include <sys/types.h> /* Some systems define `time_t' here. */
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#ifdef TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#if HAVE_TZNAME
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extern char *tzname[];
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#endif
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/* Do multibyte processing if multibytes are supported, unless
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multibyte sequences are safe in formats. Multibyte sequences are
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safe if they cannot contain byte sequences that look like format
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conversion specifications. The GNU C Library uses UTF8 multibyte
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encoding, which is safe for formats, but strftime.c can be used
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with other C libraries that use unsafe encodings. */
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#define DO_MULTIBYTE (HAVE_MBLEN && ! MULTIBYTE_IS_FORMAT_SAFE)
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#if DO_MULTIBYTE
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# if HAVE_MBRLEN
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# include <wchar.h>
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# else
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/* Simulate mbrlen with mblen as best we can. */
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# define mbstate_t int
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# define mbrlen(s, n, ps) mblen (s, n)
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# define mbsinit(ps) (*(ps) == 0)
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# endif
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static const mbstate_t mbstate_zero;
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#endif
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#if HAVE_LIMITS_H
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# include <limits.h>
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#endif
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#if STDC_HEADERS
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# include <stddef.h>
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# include <stdlib.h>
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# include <string.h>
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#else
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# ifndef HAVE_MEMCPY
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# define memcpy(d, s, n) bcopy ((s), (d), (n))
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# endif
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#endif
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#ifdef COMPILE_WIDE
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# include <endian.h>
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# define CHAR_T wchar_t
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# define UCHAR_T unsigned int
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# define L_(Str) L##Str
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# define NLW(Sym) _NL_W##Sym
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# define MEMCPY(d, s, n) __wmemcpy (d, s, n)
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# define STRLEN(s) __wcslen (s)
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#else
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# define CHAR_T char
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# define UCHAR_T unsigned char
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# define L_(Str) Str
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# define NLW(Sym) Sym
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# if !defined STDC_HEADERS && !defined HAVE_MEMCPY
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# define MEMCPY(d, s, n) bcopy ((s), (d), (n))
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# else
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# define MEMCPY(d, s, n) memcpy ((d), (s), (n))
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# endif
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# define STRLEN(s) strlen (s)
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# ifdef _LIBC
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# define MEMPCPY(d, s, n) __mempcpy (d, s, n)
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# else
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# ifndef HAVE_MEMPCPY
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# define MEMPCPY(d, s, n) ((void *) ((char *) memcpy (d, s, n) + (n)))
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# endif
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# endif
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#endif
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#ifndef __P
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# if defined __GNUC__ || (defined __STDC__ && __STDC__)
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# define __P(args) args
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# else
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# define __P(args) ()
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# endif /* GCC. */
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#endif /* Not __P. */
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#ifndef PTR
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# ifdef __STDC__
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# define PTR void *
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# else
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# define PTR char *
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# endif
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#endif
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#ifndef CHAR_BIT
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# define CHAR_BIT 8
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#endif
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#ifndef NULL
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# define NULL 0
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#endif
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#define TYPE_SIGNED(t) ((t) -1 < 0)
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/* Bound on length of the string representing an integer value of type t.
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Subtract one for the sign bit if t is signed;
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302 / 1000 is log10 (2) rounded up;
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add one for integer division truncation;
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add one more for a minus sign if t is signed. */
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#define INT_STRLEN_BOUND(t) \
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((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 + 1 + TYPE_SIGNED (t))
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#define TM_YEAR_BASE 1900
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#ifndef __isleap
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/* Nonzero if YEAR is a leap year (every 4 years,
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except every 100th isn't, and every 400th is). */
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# define __isleap(year) \
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((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
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#endif
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#ifdef _LIBC
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# define my_strftime_gmtime_r __gmtime_r
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# define my_strftime_localtime_r __localtime_r
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# define tzname __tzname
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# define tzset __tzset
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#else
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/* If we're a strftime substitute in a GNU program, then prefer gmtime
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to gmtime_r, since many gmtime_r implementations are buggy.
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Similarly for localtime_r. */
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# if ! HAVE_TM_GMTOFF
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static struct tm *my_strftime_gmtime_r __P ((const time_t *, struct tm *));
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static struct tm *
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my_strftime_gmtime_r (t, tp)
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const time_t *t;
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struct tm *tp;
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{
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struct tm *l = gmtime (t);
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if (! l)
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return 0;
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*tp = *l;
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return tp;
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}
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# endif /* ! HAVE_TM_GMTOFF */
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static struct tm *my_strftime_localtime_r __P ((const time_t *, struct tm *));
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static struct tm *
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my_strftime_localtime_r (t, tp)
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const time_t *t;
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struct tm *tp;
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{
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struct tm *l = localtime (t);
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if (! l)
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return 0;
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*tp = *l;
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return tp;
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}
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#endif /* ! defined _LIBC */
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#if !defined memset && !defined HAVE_MEMSET && !defined _LIBC
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/* Some systems lack the `memset' function and we don't want to
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introduce additional dependencies. */
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/* The SGI compiler reportedly barfs on the trailing null
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if we use a string constant as the initializer. 28 June 1997, rms. */
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static const CHAR_T spaces[16] = /* " " */
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{
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L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),
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L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' '),L_(' ')
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};
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static const CHAR_T zeroes[16] = /* "0000000000000000" */
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{
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L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),
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L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0'),L_('0')
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};
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# define memset_space(P, Len) \
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do { \
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int _len = (Len); \
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\
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do \
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{ \
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int _this = _len > 16 ? 16 : _len; \
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(P) = MEMPCPY ((P), spaces, _this * sizeof (CHAR_T)); \
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_len -= _this; \
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} \
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while (_len > 0); \
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} while (0)
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# define memset_zero(P, Len) \
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do { \
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int _len = (Len); \
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\
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do \
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{ \
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int _this = _len > 16 ? 16 : _len; \
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(P) = MEMPCPY ((P), zeroes, _this * sizeof (CHAR_T)); \
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_len -= _this; \
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} \
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while (_len > 0); \
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} while (0)
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#else
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# ifdef COMPILE_WIDE
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# define memset_space(P, Len) (wmemset ((P), L' ', (Len)), (P) += (Len))
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# define memset_zero(P, Len) (wmemset ((P), L'0', (Len)), (P) += (Len))
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# else
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# define memset_space(P, Len) (memset ((P), ' ', (Len)), (P) += (Len))
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# define memset_zero(P, Len) (memset ((P), '0', (Len)), (P) += (Len))
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# endif
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#endif
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#define add(n, f) \
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do \
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{ \
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int _n = (n); \
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int _delta = width - _n; \
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int _incr = _n + (_delta > 0 ? _delta : 0); \
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if (i + _incr >= maxsize) \
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return 0; \
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if (p) \
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{ \
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if (_delta > 0) \
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{ \
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if (pad == L_('0')) \
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memset_zero (p, _delta); \
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else \
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memset_space (p, _delta); \
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} \
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f; \
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p += _n; \
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} \
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i += _incr; \
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} while (0)
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#define cpy(n, s) \
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add ((n), \
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if (to_lowcase) \
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memcpy_lowcase (p, (s), _n); \
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else if (to_uppcase) \
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memcpy_uppcase (p, (s), _n); \
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else \
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MEMCPY ((PTR) p, (const PTR) (s), _n))
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#ifdef COMPILE_WIDE
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# define widen(os, ws, l) \
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{ \
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mbstate_t __st; \
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const char *__s = os; \
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memset (&__st, '\0', sizeof (__st)); \
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l = __mbsrtowcs (NULL, &__s, 0, &__st); \
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ws = alloca ((l + 1) * sizeof (wchar_t)); \
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(void) __mbsrtowcs (ws, &__s, l, &__st); \
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}
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#endif
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#ifdef COMPILE_WIDE
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# define TOUPPER(Ch) towupper (Ch)
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# define TOLOWER(Ch) towlower (Ch)
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#else
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# ifdef _LIBC
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# define TOUPPER(Ch) toupper (Ch)
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# define TOLOWER(Ch) tolower (Ch)
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# else
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# define TOUPPER(Ch) (islower (Ch) ? toupper (Ch) : (Ch))
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# define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch))
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# endif
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#endif
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/* We don't use `isdigit' here since the locale dependent
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interpretation is not what we want here. We only need to accept
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the arabic digits in the ASCII range. One day there is perhaps a
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more reliable way to accept other sets of digits. */
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#define ISDIGIT(Ch) ((unsigned int) (Ch) - L_('0') <= 9)
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static CHAR_T *memcpy_lowcase __P ((CHAR_T *dest, const CHAR_T *src,
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size_t len));
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static CHAR_T *
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memcpy_lowcase (dest, src, len)
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CHAR_T *dest;
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const CHAR_T *src;
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size_t len;
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{
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while (len-- > 0)
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dest[len] = TOLOWER ((UCHAR_T) src[len]);
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return dest;
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}
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static CHAR_T *memcpy_uppcase __P ((CHAR_T *dest, const CHAR_T *src,
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size_t len));
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static CHAR_T *
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memcpy_uppcase (dest, src, len)
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CHAR_T *dest;
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const CHAR_T *src;
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size_t len;
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{
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while (len-- > 0)
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dest[len] = TOUPPER ((UCHAR_T) src[len]);
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return dest;
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}
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#if ! HAVE_TM_GMTOFF
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/* Yield the difference between *A and *B,
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measured in seconds, ignoring leap seconds. */
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# define tm_diff ftime_tm_diff
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static int tm_diff __P ((const struct tm *, const struct tm *));
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static int
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tm_diff (a, b)
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const struct tm *a;
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const struct tm *b;
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{
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/* Compute intervening leap days correctly even if year is negative.
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Take care to avoid int overflow in leap day calculations,
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but it's OK to assume that A and B are close to each other. */
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int a4 = (a->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (a->tm_year & 3);
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int b4 = (b->tm_year >> 2) + (TM_YEAR_BASE >> 2) - ! (b->tm_year & 3);
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int a100 = a4 / 25 - (a4 % 25 < 0);
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int b100 = b4 / 25 - (b4 % 25 < 0);
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int a400 = a100 >> 2;
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int b400 = b100 >> 2;
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int intervening_leap_days = (a4 - b4) - (a100 - b100) + (a400 - b400);
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int years = a->tm_year - b->tm_year;
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int days = (365 * years + intervening_leap_days
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+ (a->tm_yday - b->tm_yday));
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return (60 * (60 * (24 * days + (a->tm_hour - b->tm_hour))
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+ (a->tm_min - b->tm_min))
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+ (a->tm_sec - b->tm_sec));
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}
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#endif /* ! HAVE_TM_GMTOFF */
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/* The number of days from the first day of the first ISO week of this
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year to the year day YDAY with week day WDAY. ISO weeks start on
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Monday; the first ISO week has the year's first Thursday. YDAY may
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be as small as YDAY_MINIMUM. */
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#define ISO_WEEK_START_WDAY 1 /* Monday */
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#define ISO_WEEK1_WDAY 4 /* Thursday */
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#define YDAY_MINIMUM (-366)
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static int iso_week_days __P ((int, int));
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#ifdef __GNUC__
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__inline__
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#endif
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static int
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iso_week_days (yday, wday)
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int yday;
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int wday;
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{
|
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/* Add enough to the first operand of % to make it nonnegative. */
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int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7;
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return (yday
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- (yday - wday + ISO_WEEK1_WDAY + big_enough_multiple_of_7) % 7
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+ ISO_WEEK1_WDAY - ISO_WEEK_START_WDAY);
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}
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|
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|
#if !(defined _NL_CURRENT || HAVE_STRFTIME)
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|
static CHAR_T const weekday_name[][10] =
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|
{
|
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L_("Sunday"), L_("Monday"), L_("Tuesday"), L_("Wednesday"),
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L_("Thursday"), L_("Friday"), L_("Saturday")
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|
};
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|
static CHAR_T const month_name[][10] =
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{
|
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L_("January"), L_("February"), L_("March"), L_("April"), L_("May"),
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L_("June"), L_("July"), L_("August"), L_("September"), L_("October"),
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|
L_("November"), L_("December")
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|
};
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#endif
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|
|
|
|
#ifdef emacs
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|
# define my_strftime emacs_strftimeu
|
|
# define ut_argument , ut
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|
# define ut_argument_spec int ut;
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|
# define ut_argument_spec_iso , int ut
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|
#else
|
|
# ifdef COMPILE_WIDE
|
|
# define my_strftime wcsftime
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|
# else
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|
# define my_strftime strftime
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|
# endif
|
|
# define ut_argument
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|
# define ut_argument_spec
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|
# define ut_argument_spec_iso
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|
/* We don't have this information in general. */
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|
# define ut 0
|
|
#endif
|
|
|
|
#if !defined _LIBC && HAVE_TZNAME && HAVE_TZSET
|
|
/* Solaris 2.5 tzset sometimes modifies the storage returned by localtime.
|
|
Work around this bug by copying *tp before it might be munged. */
|
|
size_t _strftime_copytm __P ((char *, size_t, const char *,
|
|
const struct tm * ut_argument_spec_iso));
|
|
size_t
|
|
my_strftime (s, maxsize, format, tp ut_argument)
|
|
CHAR_T *s;
|
|
size_t maxsize;
|
|
const CHAR_T *format;
|
|
const struct tm *tp;
|
|
ut_argument_spec
|
|
{
|
|
struct tm tmcopy;
|
|
tmcopy = *tp;
|
|
return _strftime_copytm (s, maxsize, format, &tmcopy ut_argument);
|
|
}
|
|
# undef my_strftime
|
|
# define my_strftime _strftime_copytm
|
|
#endif
|
|
|
|
|
|
/* Write information from TP into S according to the format
|
|
string FORMAT, writing no more that MAXSIZE characters
|
|
(including the terminating '\0') and returning number of
|
|
characters written. If S is NULL, nothing will be written
|
|
anywhere, so to determine how many characters would be
|
|
written, use NULL for S and (size_t) UINT_MAX for MAXSIZE. */
|
|
size_t
|
|
my_strftime (s, maxsize, format, tp ut_argument)
|
|
CHAR_T *s;
|
|
size_t maxsize;
|
|
const CHAR_T *format;
|
|
const struct tm *tp;
|
|
ut_argument_spec
|
|
{
|
|
int hour12 = tp->tm_hour;
|
|
#ifdef _NL_CURRENT
|
|
/* We cannot make the following values variables since we must delay
|
|
the evaluation of these values until really needed since some
|
|
expressions might not be valid in every situation. The `struct tm'
|
|
might be generated by a strptime() call that initialized
|
|
only a few elements. Dereference the pointers only if the format
|
|
requires this. Then it is ok to fail if the pointers are invalid. */
|
|
# define a_wkday \
|
|
((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABDAY_1) + tp->tm_wday))
|
|
# define f_wkday \
|
|
((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(DAY_1) + tp->tm_wday))
|
|
# define a_month \
|
|
((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ABMON_1) + tp->tm_mon))
|
|
# define f_month \
|
|
((const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(MON_1) + tp->tm_mon))
|
|
# define ampm \
|
|
((const CHAR_T *) _NL_CURRENT (LC_TIME, tp->tm_hour > 11 \
|
|
? NLW(PM_STR) : NLW(AM_STR)))
|
|
|
|
# define aw_len STRLEN (a_wkday)
|
|
# define am_len STRLEN (a_month)
|
|
# define ap_len STRLEN (ampm)
|
|
#else
|
|
# if !HAVE_STRFTIME
|
|
# define f_wkday (weekday_name[tp->tm_wday])
|
|
# define f_month (month_name[tp->tm_mon])
|
|
# define a_wkday f_wkday
|
|
# define a_month f_month
|
|
# define ampm (L_("AMPM") + 2 * (tp->tm_hour > 11))
|
|
|
|
size_t aw_len = 3;
|
|
size_t am_len = 3;
|
|
size_t ap_len = 2;
|
|
# endif
|
|
#endif
|
|
const char *zone;
|
|
size_t i = 0;
|
|
CHAR_T *p = s;
|
|
const CHAR_T *f;
|
|
#if DO_MULTIBYTE && !defined COMPILE_WIDE
|
|
const char *format_end = NULL;
|
|
#endif
|
|
|
|
zone = NULL;
|
|
#if HAVE_TM_ZONE
|
|
/* The POSIX test suite assumes that setting
|
|
the environment variable TZ to a new value before calling strftime()
|
|
will influence the result (the %Z format) even if the information in
|
|
TP is computed with a totally different time zone.
|
|
This is bogus: though POSIX allows bad behavior like this,
|
|
POSIX does not require it. Do the right thing instead. */
|
|
zone = (const char *) tp->tm_zone;
|
|
#endif
|
|
#if HAVE_TZNAME
|
|
if (ut)
|
|
{
|
|
if (! (zone && *zone))
|
|
zone = "GMT";
|
|
}
|
|
else
|
|
{
|
|
/* POSIX.1 requires that local time zone information is used as
|
|
though strftime called tzset. */
|
|
# if HAVE_TZSET
|
|
tzset ();
|
|
# endif
|
|
}
|
|
#endif
|
|
|
|
if (hour12 > 12)
|
|
hour12 -= 12;
|
|
else
|
|
if (hour12 == 0)
|
|
hour12 = 12;
|
|
|
|
for (f = format; *f != '\0'; ++f)
|
|
{
|
|
int pad = 0; /* Padding for number ('-', '_', or 0). */
|
|
int modifier; /* Field modifier ('E', 'O', or 0). */
|
|
int digits; /* Max digits for numeric format. */
|
|
int number_value; /* Numeric value to be printed. */
|
|
int negative_number; /* 1 if the number is negative. */
|
|
const CHAR_T *subfmt;
|
|
CHAR_T *bufp;
|
|
CHAR_T buf[1 + (sizeof (int) < sizeof (time_t)
|
|
? INT_STRLEN_BOUND (time_t)
|
|
: INT_STRLEN_BOUND (int))];
|
|
int width = -1;
|
|
int to_lowcase = 0;
|
|
int to_uppcase = 0;
|
|
int change_case = 0;
|
|
int format_char;
|
|
|
|
#if DO_MULTIBYTE && !defined COMPILE_WIDE
|
|
switch (*f)
|
|
{
|
|
case L_('%'):
|
|
break;
|
|
|
|
case L_('\b'): case L_('\t'): case L_('\n'):
|
|
case L_('\v'): case L_('\f'): case L_('\r'):
|
|
case L_(' '): case L_('!'): case L_('"'): case L_('#'): case L_('&'):
|
|
case L_('\''): case L_('('): case L_(')'): case L_('*'): case L_('+'):
|
|
case L_(','): case L_('-'): case L_('.'): case L_('/'): case L_('0'):
|
|
case L_('1'): case L_('2'): case L_('3'): case L_('4'): case L_('5'):
|
|
case L_('6'): case L_('7'): case L_('8'): case L_('9'): case L_(':'):
|
|
case L_(';'): case L_('<'): case L_('='): case L_('>'): case L_('?'):
|
|
case L_('A'): case L_('B'): case L_('C'): case L_('D'): case L_('E'):
|
|
case L_('F'): case L_('G'): case L_('H'): case L_('I'): case L_('J'):
|
|
case L_('K'): case L_('L'): case L_('M'): case L_('N'): case L_('O'):
|
|
case L_('P'): case L_('Q'): case L_('R'): case L_('S'): case L_('T'):
|
|
case L_('U'): case L_('V'): case L_('W'): case L_('X'): case L_('Y'):
|
|
case L_('Z'): case L_('['): case L_('\\'): case L_(']'): case L_('^'):
|
|
case L_('_'): case L_('a'): case L_('b'): case L_('c'): case L_('d'):
|
|
case L_('e'): case L_('f'): case L_('g'): case L_('h'): case L_('i'):
|
|
case L_('j'): case L_('k'): case L_('l'): case L_('m'): case L_('n'):
|
|
case L_('o'): case L_('p'): case L_('q'): case L_('r'): case L_('s'):
|
|
case L_('t'): case L_('u'): case L_('v'): case L_('w'): case L_('x'):
|
|
case L_('y'): case L_('z'): case L_('{'): case L_('|'): case L_('}'):
|
|
case L_('~'):
|
|
/* The C Standard requires these 98 characters (plus '%') to
|
|
be in the basic execution character set. None of these
|
|
characters can start a multibyte sequence, so they need
|
|
not be analyzed further. */
|
|
add (1, *p = *f);
|
|
continue;
|
|
|
|
default:
|
|
/* Copy this multibyte sequence until we reach its end, find
|
|
an error, or come back to the initial shift state. */
|
|
{
|
|
mbstate_t mbstate = mbstate_zero;
|
|
size_t len = 0;
|
|
size_t fsize;
|
|
|
|
if (! format_end)
|
|
format_end = f + strlen (f) + 1;
|
|
fsize = format_end - f;
|
|
|
|
do
|
|
{
|
|
size_t bytes = mbrlen (f + len, fsize - len, &mbstate);
|
|
|
|
if (bytes == 0)
|
|
break;
|
|
|
|
if (bytes == (size_t) -2)
|
|
{
|
|
len += strlen (f + len);
|
|
break;
|
|
}
|
|
|
|
if (bytes == (size_t) -1)
|
|
{
|
|
len++;
|
|
break;
|
|
}
|
|
|
|
len += bytes;
|
|
}
|
|
while (! mbsinit (&mbstate));
|
|
|
|
cpy (len, f);
|
|
f += len - 1;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
#else /* ! DO_MULTIBYTE */
|
|
|
|
/* Either multibyte encodings are not supported, they are
|
|
safe for formats, so any non-'%' byte can be copied through,
|
|
or this is the wide character version. */
|
|
if (*f != L_('%'))
|
|
{
|
|
add (1, *p = *f);
|
|
continue;
|
|
}
|
|
|
|
#endif /* ! DO_MULTIBYTE */
|
|
|
|
/* Check for flags that can modify a format. */
|
|
while (1)
|
|
{
|
|
switch (*++f)
|
|
{
|
|
/* This influences the number formats. */
|
|
case L_('_'):
|
|
case L_('-'):
|
|
case L_('0'):
|
|
pad = *f;
|
|
continue;
|
|
|
|
/* This changes textual output. */
|
|
case L_('^'):
|
|
to_uppcase = 1;
|
|
continue;
|
|
case L_('#'):
|
|
change_case = 1;
|
|
continue;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* As a GNU extension we allow to specify the field width. */
|
|
if (ISDIGIT (*f))
|
|
{
|
|
width = 0;
|
|
do
|
|
{
|
|
width *= 10;
|
|
width += *f - L_('0');
|
|
++f;
|
|
}
|
|
while (ISDIGIT (*f));
|
|
}
|
|
|
|
/* Check for modifiers. */
|
|
switch (*f)
|
|
{
|
|
case L_('E'):
|
|
case L_('O'):
|
|
modifier = *f++;
|
|
break;
|
|
|
|
default:
|
|
modifier = 0;
|
|
break;
|
|
}
|
|
|
|
/* Now do the specified format. */
|
|
format_char = *f;
|
|
switch (format_char)
|
|
{
|
|
#define DO_NUMBER(d, v) \
|
|
digits = width == -1 ? d : width; \
|
|
number_value = v; goto do_number
|
|
#define DO_NUMBER_SPACEPAD(d, v) \
|
|
digits = width == -1 ? d : width; \
|
|
number_value = v; goto do_number_spacepad
|
|
|
|
case L_('%'):
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
add (1, *p = *f);
|
|
break;
|
|
|
|
case L_('a'):
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 1;
|
|
to_lowcase = 0;
|
|
}
|
|
#if defined _NL_CURRENT || !HAVE_STRFTIME
|
|
cpy (aw_len, a_wkday);
|
|
break;
|
|
#else
|
|
goto underlying_strftime;
|
|
#endif
|
|
|
|
case 'A':
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 1;
|
|
to_lowcase = 0;
|
|
}
|
|
#if defined _NL_CURRENT || !HAVE_STRFTIME
|
|
cpy (STRLEN (f_wkday), f_wkday);
|
|
break;
|
|
#else
|
|
goto underlying_strftime;
|
|
#endif
|
|
|
|
case L_('b'):
|
|
case L_('h'):
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 1;
|
|
to_lowcase = 0;
|
|
}
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
#if defined _NL_CURRENT || !HAVE_STRFTIME
|
|
cpy (am_len, a_month);
|
|
break;
|
|
#else
|
|
goto underlying_strftime;
|
|
#endif
|
|
|
|
case L_('B'):
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 1;
|
|
to_lowcase = 0;
|
|
}
|
|
#if defined _NL_CURRENT || !HAVE_STRFTIME
|
|
cpy (STRLEN (f_month), f_month);
|
|
break;
|
|
#else
|
|
goto underlying_strftime;
|
|
#endif
|
|
|
|
case L_('c'):
|
|
if (modifier == L_('O'))
|
|
goto bad_format;
|
|
#ifdef _NL_CURRENT
|
|
if (! (modifier == 'E'
|
|
&& (*(subfmt =
|
|
(const CHAR_T *) _NL_CURRENT (LC_TIME,
|
|
NLW(ERA_D_T_FMT)))
|
|
!= '\0')))
|
|
subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_T_FMT));
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# else
|
|
subfmt = L_("%a %b %e %H:%M:%S %Y");
|
|
# endif
|
|
#endif
|
|
|
|
subformat:
|
|
{
|
|
CHAR_T *old_start = p;
|
|
size_t len = my_strftime (NULL, (size_t) -1, subfmt,
|
|
tp ut_argument);
|
|
add (len, my_strftime (p, maxsize - i, subfmt,
|
|
tp ut_argument));
|
|
|
|
if (to_uppcase)
|
|
while (old_start < p)
|
|
{
|
|
*old_start = TOUPPER ((UCHAR_T) *old_start);
|
|
++old_start;
|
|
}
|
|
}
|
|
break;
|
|
|
|
#if HAVE_STRFTIME && ! (defined _NL_CURRENT && HAVE_STRUCT_ERA_ENTRY)
|
|
underlying_strftime:
|
|
{
|
|
/* The relevant information is available only via the
|
|
underlying strftime implementation, so use that. */
|
|
char ufmt[4];
|
|
char *u = ufmt;
|
|
char ubuf[1024]; /* enough for any single format in practice */
|
|
size_t len;
|
|
/* Make sure we're calling the actual underlying strftime.
|
|
In some cases, config.h contains something like
|
|
"#define strftime rpl_strftime". */
|
|
# ifdef strftime
|
|
# undef strftime
|
|
size_t strftime ();
|
|
# endif
|
|
|
|
*u++ = '%';
|
|
if (modifier != 0)
|
|
*u++ = modifier;
|
|
*u++ = format_char;
|
|
*u = '\0';
|
|
len = strftime (ubuf, sizeof ubuf, ufmt, tp);
|
|
if (len == 0 && ubuf[0] != '\0')
|
|
return 0;
|
|
cpy (len, ubuf);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case L_('C'):
|
|
if (modifier == L_('O'))
|
|
goto bad_format;
|
|
if (modifier == L_('E'))
|
|
{
|
|
#if HAVE_STRUCT_ERA_ENTRY
|
|
struct era_entry *era = _nl_get_era_entry (tp);
|
|
if (era)
|
|
{
|
|
# ifdef COMPILE_WIDE
|
|
size_t len = __wcslen (era->era_wname);
|
|
cpy (len, era->era_wname);
|
|
# else
|
|
size_t len = strlen (era->era_name);
|
|
cpy (len, era->era_name);
|
|
# endif
|
|
break;
|
|
}
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
{
|
|
int year = tp->tm_year + TM_YEAR_BASE;
|
|
DO_NUMBER (1, year / 100 - (year % 100 < 0));
|
|
}
|
|
|
|
case L_('x'):
|
|
if (modifier == L_('O'))
|
|
goto bad_format;
|
|
#ifdef _NL_CURRENT
|
|
if (! (modifier == L_('E')
|
|
&& (*(subfmt =
|
|
(const CHAR_T *)_NL_CURRENT (LC_TIME, NLW(ERA_D_FMT)))
|
|
!= L_('\0'))))
|
|
subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(D_FMT));
|
|
goto subformat;
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# else
|
|
/* Fall through. */
|
|
# endif
|
|
#endif
|
|
case L_('D'):
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
subfmt = L_("%m/%d/%y");
|
|
goto subformat;
|
|
|
|
case L_('d'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, tp->tm_mday);
|
|
|
|
case L_('e'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER_SPACEPAD (2, tp->tm_mday);
|
|
|
|
/* All numeric formats set DIGITS and NUMBER_VALUE and then
|
|
jump to one of these two labels. */
|
|
|
|
do_number_spacepad:
|
|
/* Force `_' flag unless overwritten by `0' flag. */
|
|
if (pad != L_('0'))
|
|
pad = L_('_');
|
|
|
|
do_number:
|
|
/* Format the number according to the MODIFIER flag. */
|
|
|
|
if (modifier == L_('O') && 0 <= number_value)
|
|
{
|
|
#ifdef _NL_CURRENT
|
|
/* Get the locale specific alternate representation of
|
|
the number NUMBER_VALUE. If none exist NULL is returned. */
|
|
# ifdef COMPILE_WIDE
|
|
const wchar_t *cp = _nl_get_walt_digit (number_value);
|
|
# else
|
|
const char *cp = _nl_get_alt_digit (number_value);
|
|
# endif
|
|
|
|
if (cp != NULL)
|
|
{
|
|
size_t digitlen = STRLEN (cp);
|
|
if (digitlen != 0)
|
|
{
|
|
cpy (digitlen, cp);
|
|
break;
|
|
}
|
|
}
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# endif
|
|
#endif
|
|
}
|
|
{
|
|
unsigned int u = number_value;
|
|
|
|
bufp = buf + sizeof (buf) / sizeof (buf[0]);
|
|
negative_number = number_value < 0;
|
|
|
|
if (negative_number)
|
|
u = -u;
|
|
|
|
do
|
|
*--bufp = u % 10 + L_('0');
|
|
while ((u /= 10) != 0);
|
|
}
|
|
|
|
do_number_sign_and_padding:
|
|
if (negative_number)
|
|
*--bufp = L_('-');
|
|
|
|
if (pad != L_('-'))
|
|
{
|
|
int padding = digits - (buf + (sizeof (buf) / sizeof (buf[0]))
|
|
- bufp);
|
|
|
|
if (pad == L_('_'))
|
|
{
|
|
while (0 < padding--)
|
|
*--bufp = L_(' ');
|
|
}
|
|
else
|
|
{
|
|
bufp += negative_number;
|
|
while (0 < padding--)
|
|
*--bufp = L_('0');
|
|
if (negative_number)
|
|
*--bufp = L_('-');
|
|
}
|
|
}
|
|
|
|
cpy (buf + sizeof (buf) / sizeof (buf[0]) - bufp, bufp);
|
|
break;
|
|
|
|
case L_('F'):
|
|
if (modifier != 0)
|
|
goto bad_format;
|
|
subfmt = L_("%Y-%m-%d");
|
|
goto subformat;
|
|
|
|
case L_('H'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, tp->tm_hour);
|
|
|
|
case L_('I'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, hour12);
|
|
|
|
case L_('k'): /* GNU extension. */
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER_SPACEPAD (2, tp->tm_hour);
|
|
|
|
case L_('l'): /* GNU extension. */
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER_SPACEPAD (2, hour12);
|
|
|
|
case L_('j'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (3, 1 + tp->tm_yday);
|
|
|
|
case L_('M'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, tp->tm_min);
|
|
|
|
case L_('m'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, tp->tm_mon + 1);
|
|
|
|
case L_('n'):
|
|
add (1, *p = L_('\n'));
|
|
break;
|
|
|
|
case L_('P'):
|
|
to_lowcase = 1;
|
|
#if !defined _NL_CURRENT && HAVE_STRFTIME
|
|
format_char = L_('p');
|
|
#endif
|
|
/* FALLTHROUGH */
|
|
|
|
case L_('p'):
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 0;
|
|
to_lowcase = 1;
|
|
}
|
|
#if defined _NL_CURRENT || !HAVE_STRFTIME
|
|
cpy (ap_len, ampm);
|
|
break;
|
|
#else
|
|
goto underlying_strftime;
|
|
#endif
|
|
|
|
case L_('R'):
|
|
subfmt = L_("%H:%M");
|
|
goto subformat;
|
|
|
|
case L_('r'):
|
|
#ifdef _NL_CURRENT
|
|
if (*(subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME,
|
|
NLW(T_FMT_AMPM)))
|
|
== L_('\0'))
|
|
#endif
|
|
subfmt = L_("%I:%M:%S %p");
|
|
goto subformat;
|
|
|
|
case L_('S'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, tp->tm_sec);
|
|
|
|
case L_('s'): /* GNU extension. */
|
|
{
|
|
struct tm ltm;
|
|
time_t t;
|
|
|
|
ltm = *tp;
|
|
t = mktime (<m);
|
|
|
|
/* Generate string value for T using time_t arithmetic;
|
|
this works even if sizeof (long) < sizeof (time_t). */
|
|
|
|
bufp = buf + sizeof (buf) / sizeof (buf[0]);
|
|
negative_number = t < 0;
|
|
|
|
do
|
|
{
|
|
int d = t % 10;
|
|
t /= 10;
|
|
|
|
if (negative_number)
|
|
{
|
|
d = -d;
|
|
|
|
/* Adjust if division truncates to minus infinity. */
|
|
if (0 < -1 % 10 && d < 0)
|
|
{
|
|
t++;
|
|
d += 10;
|
|
}
|
|
}
|
|
|
|
*--bufp = d + L_('0');
|
|
}
|
|
while (t != 0);
|
|
|
|
digits = 1;
|
|
goto do_number_sign_and_padding;
|
|
}
|
|
|
|
case L_('X'):
|
|
if (modifier == L_('O'))
|
|
goto bad_format;
|
|
#ifdef _NL_CURRENT
|
|
if (! (modifier == L_('E')
|
|
&& (*(subfmt =
|
|
(const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(ERA_T_FMT)))
|
|
!= L_('\0'))))
|
|
subfmt = (const CHAR_T *) _NL_CURRENT (LC_TIME, NLW(T_FMT));
|
|
goto subformat;
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# else
|
|
/* Fall through. */
|
|
# endif
|
|
#endif
|
|
case L_('T'):
|
|
subfmt = L_("%H:%M:%S");
|
|
goto subformat;
|
|
|
|
case L_('t'):
|
|
add (1, *p = L_('\t'));
|
|
break;
|
|
|
|
case L_('u'):
|
|
DO_NUMBER (1, (tp->tm_wday - 1 + 7) % 7 + 1);
|
|
|
|
case L_('U'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, (tp->tm_yday - tp->tm_wday + 7) / 7);
|
|
|
|
case L_('V'):
|
|
case L_('g'):
|
|
case L_('G'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
{
|
|
int year = tp->tm_year + TM_YEAR_BASE;
|
|
int days = iso_week_days (tp->tm_yday, tp->tm_wday);
|
|
|
|
if (days < 0)
|
|
{
|
|
/* This ISO week belongs to the previous year. */
|
|
year--;
|
|
days = iso_week_days (tp->tm_yday + (365 + __isleap (year)),
|
|
tp->tm_wday);
|
|
}
|
|
else
|
|
{
|
|
int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)),
|
|
tp->tm_wday);
|
|
if (0 <= d)
|
|
{
|
|
/* This ISO week belongs to the next year. */
|
|
year++;
|
|
days = d;
|
|
}
|
|
}
|
|
|
|
switch (*f)
|
|
{
|
|
case L_('g'):
|
|
DO_NUMBER (2, (year % 100 + 100) % 100);
|
|
|
|
case L_('G'):
|
|
DO_NUMBER (1, year);
|
|
|
|
default:
|
|
DO_NUMBER (2, days / 7 + 1);
|
|
}
|
|
}
|
|
|
|
case L_('W'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (2, (tp->tm_yday - (tp->tm_wday - 1 + 7) % 7 + 7) / 7);
|
|
|
|
case L_('w'):
|
|
if (modifier == L_('E'))
|
|
goto bad_format;
|
|
|
|
DO_NUMBER (1, tp->tm_wday);
|
|
|
|
case L_('Y'):
|
|
if (modifier == 'E')
|
|
{
|
|
#if HAVE_STRUCT_ERA_ENTRY
|
|
struct era_entry *era = _nl_get_era_entry (tp);
|
|
if (era)
|
|
{
|
|
# ifdef COMPILE_WIDE
|
|
subfmt = era->era_wformat;
|
|
# else
|
|
subfmt = era->era_format;
|
|
# endif
|
|
goto subformat;
|
|
}
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# endif
|
|
#endif
|
|
}
|
|
if (modifier == L_('O'))
|
|
goto bad_format;
|
|
else
|
|
DO_NUMBER (1, tp->tm_year + TM_YEAR_BASE);
|
|
|
|
case L_('y'):
|
|
if (modifier == L_('E'))
|
|
{
|
|
#if HAVE_STRUCT_ERA_ENTRY
|
|
struct era_entry *era = _nl_get_era_entry (tp);
|
|
if (era)
|
|
{
|
|
int delta = tp->tm_year - era->start_date[0];
|
|
DO_NUMBER (1, (era->offset
|
|
+ delta * era->absolute_direction));
|
|
}
|
|
#else
|
|
# if HAVE_STRFTIME
|
|
goto underlying_strftime;
|
|
# endif
|
|
#endif
|
|
}
|
|
DO_NUMBER (2, (tp->tm_year % 100 + 100) % 100);
|
|
|
|
case L_('Z'):
|
|
if (change_case)
|
|
{
|
|
to_uppcase = 0;
|
|
to_lowcase = 1;
|
|
}
|
|
|
|
#if HAVE_TZNAME
|
|
/* The tzset() call might have changed the value. */
|
|
if (!(zone && *zone) && tp->tm_isdst >= 0)
|
|
zone = tzname[tp->tm_isdst];
|
|
#endif
|
|
if (! zone)
|
|
zone = "";
|
|
|
|
#ifdef COMPILE_WIDE
|
|
{
|
|
/* The zone string is always given in multibyte form. We have
|
|
to transform it first. */
|
|
wchar_t *wczone;
|
|
size_t len;
|
|
widen (zone, wczone, len);
|
|
cpy (len, wczone);
|
|
}
|
|
#else
|
|
cpy (strlen (zone), zone);
|
|
#endif
|
|
break;
|
|
|
|
case L_('z'):
|
|
if (tp->tm_isdst < 0)
|
|
break;
|
|
|
|
{
|
|
int diff;
|
|
#if HAVE_TM_GMTOFF
|
|
diff = tp->tm_gmtoff;
|
|
#else
|
|
if (ut)
|
|
diff = 0;
|
|
else
|
|
{
|
|
struct tm gtm;
|
|
struct tm ltm;
|
|
time_t lt;
|
|
|
|
ltm = *tp;
|
|
lt = mktime (<m);
|
|
|
|
if (lt == (time_t) -1)
|
|
{
|
|
/* mktime returns -1 for errors, but -1 is also a
|
|
valid time_t value. Check whether an error really
|
|
occurred. */
|
|
struct tm tm;
|
|
|
|
if (! my_strftime_localtime_r (<, &tm)
|
|
|| ((ltm.tm_sec ^ tm.tm_sec)
|
|
| (ltm.tm_min ^ tm.tm_min)
|
|
| (ltm.tm_hour ^ tm.tm_hour)
|
|
| (ltm.tm_mday ^ tm.tm_mday)
|
|
| (ltm.tm_mon ^ tm.tm_mon)
|
|
| (ltm.tm_year ^ tm.tm_year)))
|
|
break;
|
|
}
|
|
|
|
if (! my_strftime_gmtime_r (<, >m))
|
|
break;
|
|
|
|
diff = tm_diff (<m, >m);
|
|
}
|
|
#endif
|
|
|
|
if (diff < 0)
|
|
{
|
|
add (1, *p = L_('-'));
|
|
diff = -diff;
|
|
}
|
|
else
|
|
add (1, *p = L_('+'));
|
|
|
|
diff /= 60;
|
|
DO_NUMBER (4, (diff / 60) * 100 + diff % 60);
|
|
}
|
|
|
|
case L_('\0'): /* GNU extension: % at end of format. */
|
|
--f;
|
|
/* Fall through. */
|
|
default:
|
|
/* Unknown format; output the format, including the '%',
|
|
since this is most likely the right thing to do if a
|
|
multibyte string has been misparsed. */
|
|
bad_format:
|
|
{
|
|
int flen;
|
|
for (flen = 1; f[1 - flen] != L_('%'); flen++)
|
|
continue;
|
|
cpy (flen, &f[1 - flen]);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (p && maxsize != 0)
|
|
*p = L_('\0');
|
|
return i;
|
|
}
|
|
#ifdef _LIBC
|
|
libc_hidden_def (strftime)
|
|
#endif
|
|
|
|
|
|
#ifdef emacs
|
|
/* For Emacs we have a separate interface which corresponds to the normal
|
|
strftime function and does not have the extra information whether the
|
|
TP arguments comes from a `gmtime' call or not. */
|
|
size_t
|
|
emacs_strftime (s, maxsize, format, tp)
|
|
char *s;
|
|
size_t maxsize;
|
|
const char *format;
|
|
const struct tm *tp;
|
|
{
|
|
return my_strftime (s, maxsize, format, tp, 0);
|
|
}
|
|
#endif
|