raiguard/tcom

git clone https://git.raiguard.me/raiguard/tcom

Caleb HeuerRename project to tcomd0570cc

trunk
branchestrunkall refs →
2.2 KiB70 linesraw
1// TODO: Finish porting
2
3#+ignore
4
5// Based on implementations from musl libc: https://musl.libc.org
6//
7// MIT License:
8//
9// Copyright © 2005-2020 Rich Felker, et al.
10//
11// Permission is hereby granted, free of charge, to any person obtaining
12// a copy of this software and associated documentation files (the
13// "Software"), to deal in the Software without restriction, including
14// without limitation the rights to use, copy, modify, merge, publish,
15// distribute, sublicense, and/or sell copies of the Software, and to
16// permit persons to whom the Software is furnished to do so, subject to
17// the following conditions:
18
19// The above copyright notice and this permission notice shall be
20// included in all copies or substantial portions of the Software.
21
22// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
25// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
26// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
27// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
28// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29
30package tcom
31
32import "core:fmt"
33import "core:sys/posix"
34import "core:sys/linux"
35
36openpty :: proc(pm, ps: ^posix.FD, tio: ^posix.termios, allocator := context.temp_allocator) -> (success: bool) {
37	cs: posix.Cancel_State
38
39	m := posix.open("/dev/ptmx", {.RDWR, .NOCTTY});
40	if m < 0 do return false;
41	defer if !success do posix.close(m)
42
43	posix.pthread_setcancelstate(.DISABLE, &cs);
44	defer posix.pthread_setcancelstate(cs, nil)
45
46	TIOCSPTLCK :: 0x40045431
47	TIOCGPTN :: 0x80045430
48
49	n: int
50	if linux.ioctl(linux.Fd(m), TIOCSPTLCK, uintptr(&n)) != 0 || linux.ioctl(linux.Fd(m), TIOCGPTN, uintptr(&n)) != 0 {
51		return false
52	}
53
54	buf: [20]byte
55	fmt.bprintf(buf[:], "/dev/pts/%d", n);
56	buf[len(buf)-1] = 0 // Ensure null terminator
57
58	s := posix.open(cstring(raw_data(buf[:])), {.RDWR, .NOCTTY})
59	if s < 0 do return false
60
61	// if tio != nil do libc.tcsetattr(s, TCSANOW, tio)
62	// // if (ws) ioctl(s, TIOCSWINSZ, ws);
63
64	pm^ = m
65	ps^ = s
66
67	return true;
68}
69
70forkpty :: proc()