2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/* $NetBSD: wcsftime.c,v 1.3 2007/05/21 15:32:17 tnozaki Exp $ */
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/*-
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* Copyright (c) 2002 Tim J. Robbins
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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__FBSDID("$FreeBSD: src/lib/libc/locale/wcsftime.c,v 1.4 2004/04/07 09:47:56 tjr Exp $");
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#else
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__RCSID("$NetBSD: wcsftime.c,v 1.3 2007/05/21 15:32:17 tnozaki Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include <errno.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <time.h>
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#include <wchar.h>
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/*
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* Convert date and time to a wide-character string.
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*
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* This is the wide-character counterpart of strftime(). So that we do not
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* have to duplicate the code of strftime(), we convert the format string to
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* multibyte, call strftime(), then convert the result back into wide
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* characters.
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*
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* This technique loses in the presence of stateful multibyte encoding if any
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* of the conversions in the format string change conversion state. When
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* stateful encoding is implemented, we will need to reset the state between
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* format specifications in the format string.
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*/
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size_t
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wcsftime(wchar_t *wcs, size_t maxsize,
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const wchar_t *format, const struct tm *timeptr)
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{
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char *dst, *dstp, *sformat;
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size_t n, sflen;
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int sverrno;
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sformat = dst = NULL;
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/*
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* Convert the supplied format string to a multibyte representation
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* for strftime(), which only handles single-byte characters.
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*/
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sflen = wcstombs(NULL, format, 0);
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if (sflen == (size_t)-1)
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goto error;
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if ((sformat = malloc(sflen + 1)) == NULL)
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goto error;
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wcstombs(sformat, format, sflen + 1);
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/*
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* Allocate memory for longest multibyte sequence that will fit
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* into the caller's buffer and call strftime() to fill it.
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* Then, copy and convert the result back into wide characters in
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* the caller's buffer.
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*/
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if (SIZE_T_MAX / MB_CUR_MAX <= maxsize) {
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/* maxsize is preposterously large - avoid int. overflow. */
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errno = EINVAL;
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goto error;
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}
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dst = malloc(maxsize * MB_CUR_MAX);
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if (dst == NULL)
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goto error;
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if (strftime(dst, maxsize, sformat, timeptr) == 0)
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goto error;
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dstp = dst;
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n = mbstowcs(wcs, dstp, maxsize);
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if (n == (size_t)-2 || n == (size_t)-1)
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goto error;
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free(sformat);
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free(dst);
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return n;
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error:
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sverrno = errno;
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free(sformat);
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free(dst);
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errno = sverrno;
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return 0;
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}
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