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https://github.com/jart/cosmopolitan.git
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e4d25d68e4
Microsoft caused some very gentle breakages for Cosmopolitan. They removed the version information from the PEB which caused uname to report WINDOWS 0.0.0. We should have called GetVersionExW but that doesn't really exist anymore either. Windows policy is now to give whatever version we used in ape/ape.S. Windows8 has been EOL since 2023-01-10 so lets avoid our modern executables being relegated to legacy infrastructure. Requiring Windows 10+ going forward lets us remove runtime compatibility bloat from the codebase. Further note Cosmopolitan maintains a Windows Vista branch on GitHub, so anyone preferring the older versions, can still have a future with Cosmo. Another neat thing this fixes is UTF-8 support in the console. The changes Microsoft made broke the if statement that enabled UTF8 in terminals. This explains why bug reports had broken arrows. In the future this should be less of an issue, since the PEB code is gone which means we more strictly conform to only Microsoft's WIN32 API
54 lines
3 KiB
C
54 lines
3 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/dce.h"
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#include "libc/log/internal.h"
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#include "libc/runtime/runtime.h"
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#define IsDumb(s) \
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(s[0] == 'd' && s[1] == 'u' && s[2] == 'm' && s[3] == 'b' && !s[4])
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/**
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* Indicates if ANSI terminal colors are inappropriate.
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*
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* Normally this variable should be false. We only set it to true if
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* we're running on an old version of Windows or the environment
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* variable `TERM` is set to `dumb`.
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*
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* We think colors should be the norm, since most software is usually
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* too conservative about removing them. Rather than using `isatty`
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* consider using sed for instances where color must be removed:
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*
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* sed 's/\x1b\[[;[:digit:]]*m//g' <color.txt >uncolor.txt
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*
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* For some reason, important software is configured by default in many
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* operating systems, to not only disable colors, but utf-8 too! Here's
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* an example of how a wrapper script can fix that for `less`.
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*
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* #!/bin/sh
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* LESSCHARSET=UTF-8 exec /usr/bin/less -RS "$@"
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*
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* Thank you for using colors!
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*/
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bool __nocolor;
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__attribute__((__constructor__(20))) optimizesize textstartup void
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__nocolor_init(int argc, char **argv, char **envp, intptr_t *auxv) {
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char *s;
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__nocolor = IsWindows() || ((s = getenv("TERM")) && IsDumb(s));
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}
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