mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-03-03 23:48:21 +00:00
33d280c8ba
- Blocking read operations on the Windows Console can now EINTR - Blocking read operations on Windows pipes now EINTR more reliably - setitimer() will no longer be inherited across fork() on Windows - It's now possible to use ECHO when the console is in raw mode - The ECHOCTL flag now works correctly on the Windows Console - The ICRNL flag now works correctly on the Windows Console - pread() and pwrite() will now raise ESPIPE on Windows - Opening /dev/tty on Windows is improved (untested) - Overlapped I/O is now implemented in a better way
117 lines
4.9 KiB
C
117 lines
4.9 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net 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/calls/internal.h"
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#include "libc/calls/struct/metatermios.internal.h"
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#include "libc/calls/termios.internal.h"
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#include "libc/intrin/describeflags.internal.h"
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#include "libc/intrin/strace.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/nt/enum/version.h"
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#include "libc/nt/version.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/termios.h"
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#include "libc/sysv/errfuns.h"
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textwindows int tcsetattr_nt(int fd, int opt, const struct termios *tio) {
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bool32 ok;
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int ttymagic;
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int64_t hInput, hOutput;
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uint32_t inmode, outmode;
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if (__isfdkind(fd, kFdConsole)) {
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// program manually opened /dev/tty in O_RDWR mode for cmd.exe
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hInput = g_fds.p[fd].handle;
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hOutput = g_fds.p[fd].extra;
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} else if (fd == 0 || fd == 1) {
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// otherwise just assume cmd.exe console stdio
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// there's no serial port support yet
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hInput = g_fds.p[0].handle;
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hOutput = g_fds.p[1].handle;
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fd = 0;
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} else {
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STRACE("tcsetattr(fd) must be 0, 1, or open'd /dev/tty");
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return enotty();
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}
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if (GetConsoleMode(hInput, &inmode) && GetConsoleMode(hOutput, &outmode)) {
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if (opt == TCSAFLUSH) {
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FlushConsoleInputBuffer(hInput);
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}
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inmode &=
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~(kNtEnableLineInput | kNtEnableEchoInput | kNtEnableProcessedInput);
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inmode |= kNtEnableWindowInput;
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ttymagic = 0;
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if (tio->c_lflag & ICANON) {
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inmode |= kNtEnableLineInput;
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} else {
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ttymagic |= kFdTtyMunging;
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if (tio->c_cc[VMIN] != 1) {
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STRACE("tcsetattr c_cc[VMIN] must be 1 on Windows");
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return einval();
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}
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}
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if (!(tio->c_iflag & ICRNL)) {
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ttymagic |= kFdTtyNoCr2Nl;
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}
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if (!(tio->c_lflag & ECHOCTL)) {
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ttymagic |= kFdTtyEchoRaw;
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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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} else {
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// If ECHO is enabled in raw mode, then read(0) needs to
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// magically write(1) to simulate echoing. This normally
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// visualizes control codes, e.g. \r → ^M unless ECHOCTL
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// hasn't been specified.
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ttymagic |= kFdTtyEchoing;
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}
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}
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if (tio->c_lflag & (IEXTEN | ISIG)) {
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inmode |= kNtEnableProcessedInput;
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}
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if (IsAtLeastWindows10()) {
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inmode |= kNtEnableVirtualTerminalInput;
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}
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g_fds.p[fd].ttymagic = ttymagic;
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ok = SetConsoleMode(hInput, inmode);
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(void)ok;
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NTTRACE("SetConsoleMode(%p, %s) → %hhhd", hInput,
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DescribeNtConsoleInFlags(inmode), ok);
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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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if (IsAtLeastWindows10()) {
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outmode |= kNtEnableVirtualTerminalProcessing;
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}
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ok = SetConsoleMode(hOutput, outmode);
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(void)ok;
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NTTRACE("SetConsoleMode(%p, %s) → %hhhd", hOutput,
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DescribeNtConsoleOutFlags(outmode), ok);
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return 0;
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} else {
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return enotty();
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}
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}
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