mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
b0df6c1fce
Cosmopolitan now supports 104 time zones. They're embedded inside any binary that links the localtime() function. Doing so adds about 100kb to the binary size. This change also gets time zones working properly on Windows for the first time. It's not needed to have /etc/localtime exist on Windows, since we can get this information from WIN32. We're also now updated to the latest version of Paul Eggert's TZ library.
241 lines
6.6 KiB
C
241 lines
6.6 KiB
C
/*
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* xxhsum - Command line interface for xxhash algorithms
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* Copyright (C) 2013-2021 Yann Collet
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*
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* GPL v2 License
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* You can contact the author at:
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* - xxHash homepage: https://www.xxhash.com
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* - xxHash source repository: https://github.com/Cyan4973/xxHash
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*/
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/*
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* This contains various configuration parameters and feature detection for
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* xxhsum.
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*
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* Similar to config.h in Autotools, this should be the first header included.
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*/
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#ifndef XSUM_CONFIG_H
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#define XSUM_CONFIG_H
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/* ************************************
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* Compiler Options
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**************************************/
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/*
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* Disable Visual C's warnings when using the "insecure" CRT functions instead
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* of the "secure" _s functions.
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*
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* These functions are not portable, and aren't necessary if you are using the
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* original functions properly.
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*/
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#if defined(_MSC_VER) || defined(_WIN32)
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# ifndef _CRT_SECURE_NO_WARNINGS
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# define _CRT_SECURE_NO_WARNINGS
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# endif
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#endif
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/* Under Linux at least, pull in the *64 commands */
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#ifndef _LARGEFILE64_SOURCE
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# define _LARGEFILE64_SOURCE
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#endif
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#ifndef _FILE_OFFSET_BITS
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# define _FILE_OFFSET_BITS 64
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#endif
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/*
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* So we can use __attribute__((__format__))
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*/
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#ifdef __GNUC__
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# define XSUM_ATTRIBUTE(x) __attribute__(x)
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#else
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# define XSUM_ATTRIBUTE(x)
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#endif
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#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) /* UNIX-like OS */ \
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|| defined(__midipix__) || defined(__VMS))
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# if (defined(__APPLE__) && defined(__MACH__)) || defined(__SVR4) || defined(_AIX) || defined(__hpux) /* POSIX.1-2001 (SUSv3) conformant */ \
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|| defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* BSD distros */
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# define XSUM_PLATFORM_POSIX_VERSION 200112L
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# else
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# if defined(__linux__) || defined(__linux)
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# ifndef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 200112L /* use feature test macro */
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# endif
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# endif
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#include "libc/calls/calls.h"
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#include "libc/calls/weirdtypes.h"
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#include "libc/runtime/pathconf.h"
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#include "libc/runtime/runtime.h"
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#include "libc/runtime/sysconf.h"
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#include "libc/sysv/consts/f.h"
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#include "libc/sysv/consts/fileno.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/ok.h"
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#include "libc/time.h"
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#include "third_party/musl/crypt.h"
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#include "third_party/musl/lockf.h" /* declares _POSIX_VERSION */
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# if defined(_POSIX_VERSION) /* POSIX compliant */
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# define XSUM_PLATFORM_POSIX_VERSION _POSIX_VERSION
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# else
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# define XSUM_PLATFORM_POSIX_VERSION 0
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# endif
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# endif
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#endif
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#if !defined(XSUM_PLATFORM_POSIX_VERSION)
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# define XSUM_PLATFORM_POSIX_VERSION -1
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#endif
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/**
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*
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* fzakaria: remove this
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*
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* #if !defined(S_ISREG)
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* # define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
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* #endif
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*/
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/* ************************************
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* Windows helpers
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**************************************/
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/*
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* Whether to use the Windows UTF-16 APIs instead of the portable libc 8-bit
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* ("ANSI") APIs.
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*
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* Windows is not UTF-8 clean by default, and the only way to access every file
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* on the OS is to use UTF-16.
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*
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* Do note that xxhsum uses UTF-8 internally and only uses UTF-16 for command
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* line arguments, console I/O, and opening files.
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*
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* Additionally, this guarantees all piped output is UTF-8.
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*/
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#if defined(XSUM_WIN32_USE_WCHAR) && !defined(_WIN32)
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/* We use Windows APIs, only use this on Windows. */
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# undef XSUM_WIN32_USE_WCHAR
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#endif
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#ifndef XSUM_WIN32_USE_WCHAR
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# if defined(_WIN32)
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#include "libc/fmt/conv.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/str/unicode.h"
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#include "libc/time.h"
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# if WCHAR_MAX == 0xFFFFU /* UTF-16 wchar_t */
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# define XSUM_WIN32_USE_WCHAR 1
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# else
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# define XSUM_WIN32_USE_WCHAR 0
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# endif
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# else
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# define XSUM_WIN32_USE_WCHAR 0
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# endif
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#endif
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#if !XSUM_WIN32_USE_WCHAR
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/*
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* It doesn't make sense to have one without the other.
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* Due to XSUM_WIN32_USE_WCHAR being undef'd, this also handles
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* non-WIN32 platforms.
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*/
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# undef XSUM_WIN32_USE_WMAIN
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# define XSUM_WIN32_USE_WMAIN 0
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#else
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/*
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* Whether to use wmain() or main().
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*
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* wmain() is preferred because we don't have to mess with internal hidden
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* APIs.
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*
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* It always works on MSVC, but in MinGW, it only works on MinGW-w64 with the
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* -municode flag.
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*
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* Therefore we have to use main() -- there is no better option.
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*/
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# ifndef XSUM_WIN32_USE_WMAIN
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# if defined(_UNICODE) || defined(UNICODE) /* MinGW -municode */ \
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|| defined(_MSC_VER) /* MSVC */
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# define XSUM_WIN32_USE_WMAIN 1
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# else
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# define XSUM_WIN32_USE_WMAIN 0
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# endif
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# endif
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/*
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* It is always good practice to define these to prevent accidental use of the
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* ANSI APIs, even if the program primarily uses UTF-8.
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*/
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# ifndef _UNICODE
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# define _UNICODE
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# endif
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# ifndef UNICODE
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# define UNICODE
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# endif
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#endif /* XSUM_WIN32_USE_WCHAR */
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#ifndef XSUM_API
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# ifdef XXH_INLINE_ALL
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# define XSUM_API static
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# else
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# define XSUM_API
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# endif
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#endif
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#ifndef XSUM_NO_TESTS
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# define XSUM_NO_TESTS 0
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#endif
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/* ***************************
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* Basic types
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* ***************************/
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#if defined(__cplusplus) /* C++ */ \
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|| (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) /* C99 */
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#include "libc/inttypes.h"
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#include "libc/limits.h"
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#include "libc/literal.h"
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typedef uint8_t XSUM_U8;
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typedef uint32_t XSUM_U32;
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typedef uint64_t XSUM_U64;
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# else
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#include "libc/limits.h"
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#include "libc/sysv/consts/_posix.h"
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#include "libc/sysv/consts/iov.h"
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#include "libc/sysv/consts/limits.h"
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#include "libc/sysv/consts/xopen.h"
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#include "libc/thread/thread.h"
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typedef unsigned char XSUM_U8;
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# if UINT_MAX == 0xFFFFFFFFUL
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typedef unsigned int XSUM_U32;
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# else
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typedef unsigned long XSUM_U32;
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# endif
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typedef unsigned long long XSUM_U64;
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#endif /* not C++/C99 */
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/* ***************************
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* Common constants
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* ***************************/
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#define KB *( 1<<10)
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#define MB *( 1<<20)
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#define GB *(1U<<30)
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#endif /* XSUM_CONFIG_H */
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