cosmopolitan/dsp/tty/hidecursor.c
Justine Tunney af645fcbec Make exciting improvements
- Add Lua backtraces to redbean!
- Wipe serving keys after redbean forks
- Audit redbean to remove free via exit
- Log SSL client ciphersuite preferences
- Increase ASAN malloc() backtrace depth
- Make GetSslRoots() behave as a singleton
- Move leaks.c from LIBC_TESTLIB to LIBC_LOG
- Add undocumented %n to printf() for newlines
- Fix redbean memory leak reindexing inode change
- Fix redbean memory leak with Fetch() DNS object
- Restore original environ after __cxa_finalize()
- Make backtrace always work after __cxa_finalize()
- Introduce COUNTEXPR() diagnostic / benchmark tool
- Fix a few more instances of errno being clobbered
- Consolidate the ANSI color disabling internal APIs
2022-03-18 03:02:00 -07:00

56 lines
2.7 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/tty/tty.h"
#include "libc/bits/pushpop.h"
#include "libc/dce.h"
#include "libc/log/internal.h"
#include "libc/log/log.h"
#include "libc/nt/console.h"
#include "libc/nt/runtime.h"
#include "libc/nt/struct/consolecursorinfo.h"
#include "libc/runtime/runtime.h"
/* TODO(jart): DELETE */
static int ttysetcursor(int fd, bool visible) {
struct NtConsoleCursorInfo ntcursor;
char code[8] = "\e[?25l";
if (__nocolor) return 0;
if (visible) code[5] = 'h';
if (SupportsWindows()) {
GetConsoleCursorInfo(GetStdHandle(kNtStdOutputHandle), &ntcursor);
ntcursor.bVisible = visible;
SetConsoleCursorInfo(GetStdHandle(kNtStdOutputHandle), &ntcursor);
}
return ttysend(fd, code);
}
/**
* Asks teletypewriter to hide blinking box.
*/
int ttyhidecursor(int fd) {
return ttysetcursor(fd, false);
}
/**
* Asks teletypewriter to restore blinking box.
*/
int ttyshowcursor(int fd) {
return ttysetcursor(fd, true);
}