cosmopolitan/libc/calls/ioctl-tiocgwinsz-nt.c

63 lines
3.2 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 "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/termios.h"
#include "libc/calls/struct/winsize.h"
#include "libc/nt/console.h"
#include "libc/nt/enum/startf.h"
#include "libc/nt/struct/consolescreenbufferinfoex.h"
#include "libc/str/str.h"
#include "libc/sysv/errfuns.h"
textwindows int ioctl$tiocgwinsz$nt(int fd, struct winsize *ws) {
int i, fds[3];
uint32_t mode;
struct NtConsoleScreenBufferInfoEx sbinfo;
fds[0] = fd, fds[1] = 1, fds[2] = 0;
for (i = 0; i < ARRAYLEN(fds); ++i) {
if (__isfdkind(fds[i], kFdFile) || __isfdkind(fds[i], kFdConsole)) {
if (GetConsoleMode(g_fds.p[fds[i]].handle, &mode)) {
memset(&sbinfo, 0, sizeof(sbinfo));
sbinfo.cbSize = sizeof(sbinfo);
if (GetConsoleScreenBufferInfoEx(g_fds.p[fds[i]].handle, &sbinfo)) {
ws->ws_col = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1;
ws->ws_row = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1;
ws->ws_xpixel = 0;
ws->ws_ypixel = 0;
return 0;
} else if (g_ntstartupinfo.dwFlags & kNtStartfUsecountchars) {
ws->ws_col = g_ntstartupinfo.dwXCountChars;
ws->ws_row = g_ntstartupinfo.dwYCountChars;
ws->ws_xpixel = 0;
ws->ws_ypixel = 0;
return 0;
} else {
__winerr();
}
} else {
enotty();
}
} else {
ebadf();
}
}
return -1;
}