mirror of
https://github.com/jart/cosmopolitan.git
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116 lines
4.9 KiB
C
116 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 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/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/fds.h"
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#include "libc/intrin/nomultics.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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if (!(tio->c_lflag & ECHOE))
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__ttyconf.magic |= kTtyNoEchoe;
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if (!(tio->c_lflag & ECHOK))
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__ttyconf.magic |= kTtyNoEchok;
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if (!(tio->c_lflag & ECHOKE))
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__ttyconf.magic |= kTtyNoEchoke;
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if (!(tio->c_lflag & ECHOCTL))
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__ttyconf.magic |= kTtyEchoRaw;
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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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__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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// IEXTEN enables implementation-defined input processing. This flag,
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// as well as ICANON must be enabled for the special characters EOL2,
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// LNEXT, REPRINT, WERASE to be interpreted.
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if (!(tio->c_lflag & IEXTEN))
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__ttyconf.magic |= kTtyNoIexten;
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memcpy(__ttyconf.c_cc, tio->c_cc, NCCS);
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if ((tio->c_lflag & ISIG) && __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 while it is used
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inmode |= kNtEnableProcessedInput;
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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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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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