mirror of
https://github.com/jart/cosmopolitan.git
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3e4fd4b0ad
This change also pays off some of the remaining technical debt with stdio, file descriptors, and memory managemnt polyfills.
64 lines
3.3 KiB
C
64 lines
3.3 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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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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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/termios.h"
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#include "libc/calls/struct/winsize.h"
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#include "libc/nt/console.h"
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#include "libc/nt/enum/startf.h"
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#include "libc/nt/struct/consolescreenbufferinfoex.h"
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#include "libc/str/str.h"
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#include "libc/sysv/errfuns.h"
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textwindows int ioctl$tiocgwinsz$nt(int fd, struct winsize *ws) {
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int i, fds[3];
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uint32_t mode;
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struct NtConsoleScreenBufferInfoEx sbinfo;
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fds[0] = fd, fds[1] = 1, fds[2] = 0;
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for (i = 0; i < ARRAYLEN(fds); ++i) {
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if (__isfdkind(fds[i], kFdFile) || __isfdkind(fds[i], kFdConsole)) {
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if (GetConsoleMode(g_fds.p[fds[i]].handle, &mode)) {
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memset(&sbinfo, 0, sizeof(sbinfo));
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sbinfo.cbSize = sizeof(sbinfo);
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if (GetConsoleScreenBufferInfoEx(g_fds.p[fds[i]].handle, &sbinfo)) {
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ws->ws_col = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1;
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ws->ws_row = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1;
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ws->ws_xpixel = 0;
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ws->ws_ypixel = 0;
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return 0;
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} else if (g_ntstartupinfo.dwFlags & kNtStartfUsecountchars) {
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ws->ws_col = g_ntstartupinfo.dwXCountChars;
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ws->ws_row = g_ntstartupinfo.dwYCountChars;
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ws->ws_xpixel = 0;
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ws->ws_ypixel = 0;
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return 0;
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} else {
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__winerr();
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}
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} else {
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enotty();
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}
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} else {
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ebadf();
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}
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}
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return -1;
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}
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