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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
106 lines
4.6 KiB
C
106 lines
4.6 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/assert.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/fd.internal.h"
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#include "libc/calls/struct/termios.h"
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#include "libc/calls/syscall-nt.internal.h"
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#include "libc/calls/ttydefaults.h"
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#include "libc/intrin/nomultics.internal.h"
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#include "libc/nt/console.h"
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#include "libc/nt/enum/consolemodeflags.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/baud.internal.h"
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#include "libc/sysv/consts/termios.h"
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#include "libc/sysv/errfuns.h"
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#ifdef __x86_64__
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textwindows int tcsetattr_nt(int fd, int opt, const struct termios *tio) {
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int64_t hInput, hOutput;
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uint32_t inmode, outmode;
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// validate file descriptor
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if (!__isfdopen(fd))
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return ebadf();
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if (!__isfdkind(fd, kFdConsole))
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return enotty();
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// then completely ignore it
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hInput = GetConsoleInputHandle();
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hOutput = GetConsoleOutputHandle();
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unassert(GetConsoleMode(hInput, &inmode));
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unassert(GetConsoleMode(hOutput, &outmode));
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if (opt == TCSAFLUSH)
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FlushConsoleInputBytes();
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// now work on the configuration
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inmode &= ~(kNtEnableLineInput | kNtEnableEchoInput |
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kNtEnableProcessedInput | kNtEnableVirtualTerminalInput);
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inmode |= kNtEnableWindowInput;
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__ttyconf.magic = 0;
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if (tio->c_lflag & ICANON) {
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inmode |= kNtEnableLineInput | kNtEnableQuickEditMode;
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} else {
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// protip: hold down shift and you can use the mouse normally
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inmode &= ~kNtEnableQuickEditMode;
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__ttyconf.magic |= kTtyUncanon;
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}
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if (!(tio->c_iflag & ICRNL)) {
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__ttyconf.magic |= kTtyNoCr2Nl;
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}
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if (!(tio->c_lflag & ECHOCTL)) {
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__ttyconf.magic |= kTtyEchoRaw;
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}
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if (tio->c_lflag & ECHO) {
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// "kNtEnableEchoInput can be used only if the
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// kNtEnableLineInput mode is also enabled." -MSDN
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if (tio->c_lflag & ICANON) {
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inmode |= kNtEnableEchoInput;
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}
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} else {
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__ttyconf.magic |= kTtySilence;
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}
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if (!(tio->c_lflag & ISIG)) {
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__ttyconf.magic |= kTtyNoIsigs;
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}
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memcpy(__ttyconf.c_cc, tio->c_cc, NCCS);
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if ((tio->c_lflag & ISIG) && //
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!(tio->c_lflag & ICANON) && //
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__ttyconf.vintr == CTRL('C')) {
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// allows ctrl-c to be delivered asynchronously via win32
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// we normally don't want win32 doing this 24/7 in the bg
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// because we don't have job control, tcsetpgrp, etc. yet
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// it's normally much better to let read-nt.c raise a sig
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// because read-nt only manages your tty whilst it's used
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inmode |= kNtEnableProcessedInput;
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}
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outmode &= ~kNtDisableNewlineAutoReturn;
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outmode |= kNtEnableProcessedOutput;
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if (!(tio->c_oflag & ONLCR)) {
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outmode |= kNtDisableNewlineAutoReturn;
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}
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outmode |= kNtEnableVirtualTerminalProcessing;
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// tune the win32 configuration
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unassert(SetConsoleMode(hInput, inmode));
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unassert(SetConsoleMode(hOutput, outmode));
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return 0;
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}
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#endif /* __x86_64__ */
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