+++ /dev/null
-/* $NetBSD: wcsftime.c,v 1.2 2006/10/04 14:19:16 tnozaki Exp $ */\r
-/*-\r
- * Copyright (c) 2002 Tim J. Robbins\r
- * All rights reserved.\r
- *\r
- * Redistribution and use in source and binary forms, with or without\r
- * modification, are permitted provided that the following conditions\r
- * are met:\r
- * 1. Redistributions of source code must retain the above copyright\r
- * notice, this list of conditions and the following disclaimer.\r
- * 2. Redistributions in binary form must reproduce the above copyright\r
- * notice, this list of conditions and the following disclaimer in the\r
- * documentation and/or other materials provided with the distribution.\r
- *\r
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND\r
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE\r
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
- * SUCH DAMAGE.\r
- */\r
-#include <LibConfig.h>\r
-#include <sys/EfiCdefs.h>\r
-#if defined(LIBC_SCCS) && !defined(lint)\r
-#if 0\r
-__FBSDID("$FreeBSD: src/lib/libc/locale/wcsftime.c,v 1.4 2004/04/07 09:47:56 tjr Exp $");\r
-#else\r
-__RCSID("$NetBSD: wcsftime.c,v 1.2 2006/10/04 14:19:16 tnozaki Exp $");\r
-#endif\r
-#endif /* LIBC_SCCS and not lint */\r
-\r
-#include <errno.h>\r
-#include <limits.h>\r
-#include <stdlib.h>\r
-#include <time.h>\r
-#include <wchar.h>\r
-#include <machine/int_limits.h>\r
-\r
-/*\r
- * Convert date and time to a wide-character string.\r
- *\r
- * This is the wide-character counterpart of strftime(). So that we do not\r
- * have to duplicate the code of strftime(), we convert the format string to\r
- * multibyte, call strftime(), then convert the result back into wide\r
- * characters.\r
- *\r
- * This technique loses in the presence of stateful multibyte encoding if any\r
- * of the conversions in the format string change conversion state. When\r
- * stateful encoding is implemented, we will need to reset the state between\r
- * format specifications in the format string.\r
- */\r
-size_t\r
-wcsftime(wchar_t *wcs, size_t maxsize,\r
- const wchar_t *format, const struct tm *timeptr)\r
-{\r
- char *dst, *dstp, *sformat;\r
- size_t n, sflen;\r
- int sverrno;\r
-\r
- sformat = dst = NULL;\r
-\r
- /*\r
- * Convert the supplied format string to a multibyte representation\r
- * for strftime(), which only handles single-byte characters.\r
- */\r
- sflen = wcstombs(NULL, format, 0);\r
- if (sflen == (size_t)-1)\r
- goto error;\r
- if ((sformat = malloc(sflen + 1)) == NULL)\r
- goto error;\r
- wcstombs(sformat, format, sflen + 1);\r
-\r
- /*\r
- * Allocate memory for longest multibyte sequence that will fit\r
- * into the caller's buffer and call strftime() to fill it.\r
- * Then, copy and convert the result back into wide characters in\r
- * the caller's buffer.\r
- */\r
- if (SIZE_T_MAX / MB_CUR_MAX <= maxsize) {\r
- /* maxsize is preposturously large - avoid int. overflow. */\r
- errno = EINVAL;\r
- goto error;\r
- }\r
- dst = malloc(maxsize * MB_CUR_MAX);\r
- if (dst == NULL)\r
- goto error;\r
- if (strftime(dst, maxsize, sformat, timeptr) == 0)\r
- goto error;\r
- dstp = dst;\r
- n = mbstowcs(wcs, dstp, maxsize);\r
- if (n == (size_t)-2 || n == (size_t)-1)\r
- goto error;\r
-\r
- free(sformat);\r
- free(dst);\r
- return n;\r
-\r
-error:\r
- sverrno = errno;\r
- free(sformat);\r
- free(dst);\r
- errno = sverrno;\r
- return 0;\r
-}\r
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