mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
b45d50b690
- Fix build flakes - Polyfill SIGWINCH on Windows - Fix an execve issue on Windows - Make strerror show more information - Improve cmd.exe setup/teardown on Windows - Support bracketed paste mode in Blinkenlights - Show keyboard shortcuts in Blinkenlights status bar - Fixed copy_file_range() and copyfile() w/ zip filesystem - Size optimize GetDosArgv() to keep life.com 12kb in size - Improve Blinkenlights ability to load weird ELF executables - Fix program_executable_name and add GetInterpreterExecutableName - Make Python in tiny mode fail better if docstrings are requested - Update Python test exclusions in tiny* modes such as tinylinux - Add bulletproof unbreakable kprintf() troubleshooting function - Remove "oldskool" keyword from ape.S for virus scanners - Fix issue that caused backtraces to not print sometimes - Improve Blinkenlights serial uart character i/o - Make clock_gettime() not clobber errno on xnu - Improve sha256 cpuid check for old computers - Integrate some bestline linenoise fixes - Show runit process names better in htop - Remove SIGPIPE from ShowCrashReports() - Make realpath() not clobber errno - Avoid attaching GDB on non-Linux - Improve img.com example
58 lines
2.9 KiB
C
58 lines
2.9 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 2021 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/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/winsize.h"
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#include "libc/calls/sysdebug.internal.h"
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#include "libc/errno.h"
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#include "libc/nt/struct/consolescreenbufferinfoex.h"
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#include "libc/str/str.h"
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static struct winsize __ws;
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textwindows bool _check_sigwinch(struct Fd *fd) {
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int e;
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siginfo_t si;
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struct winsize ws, old;
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struct NtConsoleScreenBufferInfoEx sbinfo;
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old = __ws;
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if (old.ws_row != 0xffff) {
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e = errno;
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if (ioctl_tiocgwinsz_nt(fd, &ws) != -1) {
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if (old.ws_col != ws.ws_col || old.ws_row != ws.ws_row) {
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__ws = ws;
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if (old.ws_col | old.ws_row) {
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SYSDEBUG("SIGWINCH %hhu×%hhu → %hhu×%hhu", old.ws_col, old.ws_row,
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ws.ws_col, ws.ws_row);
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if (__sighandrvas[SIGWINCH] >= kSigactionMinRva) {
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bzero(&si, sizeof(si));
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((sigaction_f)(_base + __sighandrvas[SIGWINCH]))(SIGWINCH, &si, 0);
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return true;
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}
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}
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}
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} else {
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errno = e;
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if (!old.ws_row && !old.ws_col) {
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__ws.ws_row = 0xffff;
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}
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}
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}
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return false;
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}
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