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Make setting numlock work on BSD + less homebrew interop

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Signed-off-by: AnErrupTion <anerruption@disroot.org>
This commit is contained in:
AnErrupTion
2024-07-30 18:38:21 +02:00
parent b1bf89a4cf
commit 3fedb59fdb
4 changed files with 67 additions and 65 deletions
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91
src/interop.zig
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@@ -21,11 +21,25 @@ pub const unistd = @cImport({
@cInclude("unistd.h");
});
// Exists for FreeBSD only
// FreeBSD-specific headers
pub const logincap = @cImport({
@cInclude("login_cap.h");
});
// BSD-specific headers
pub const kbio = @cImport({
@cInclude("sys/kbio.h");
});
// Linux-specific headers
pub const kd = @cImport({
@cInclude("sys/kd.h");
});
pub const vt = @cImport({
@cInclude("sys/vt.h");
});
pub const c_size = usize;
pub const c_uid = u32;
pub const c_gid = u32;
@@ -41,37 +55,12 @@ pub const tm = extern struct {
tm_yday: c_int,
tm_isdst: c_int,
};
pub const passwd = extern struct {
pw_name: [*:0]u8,
pw_passwd: [*:0]u8,
pw_uid: c_uid,
pw_gid: c_gid,
pw_gecos: [*:0]u8,
pw_dir: [*:0]u8,
pw_shell: [*:0]u8,
};
pub const VT_ACTIVATE: c_int = 0x5606;
pub const VT_WAITACTIVE: c_int = 0x5607;
pub const KDGETLED: c_int = 0x4B31;
pub const KDSETLED: c_int = 0x4B32;
pub const KDGKBLED: c_int = 0x4B64;
pub const KDSKBLED: c_int = 0x4B65;
pub const LED_NUM: c_int = 0x02;
pub const LED_CAP: c_int = 0x04;
pub const K_NUMLOCK: c_int = 0x02;
pub const K_CAPSLOCK: c_int = 0x04;
pub extern "c" fn localtime(timer: *const c_time) *tm;
pub extern "c" fn strftime(str: [*:0]u8, maxsize: c_size, format: [*:0]const u8, timeptr: *const tm) c_size;
pub extern "c" fn setenv(name: [*:0]const u8, value: [*:0]const u8, overwrite: c_int) c_int;
pub extern "c" fn setenv(name: [*:0]const u8, value: ?[*:0]const u8, overwrite: c_int) c_int;
pub extern "c" fn putenv(name: [*:0]u8) c_int;
pub extern "c" fn getuid() c_uid;
pub extern "c" fn getpwnam(name: [*:0]const u8) ?*passwd;
pub extern "c" fn endpwent() void;
pub extern "c" fn setusershell() void;
pub extern "c" fn getusershell() [*:0]u8;
@@ -88,27 +77,34 @@ pub fn timeAsString(buf: [:0]u8, format: [:0]const u8) ![]u8 {
return buf[0..len];
}
pub fn getLockState(console_dev: [:0]const u8) !struct {
pub fn switchTty(console_dev: []const u8, tty: u8) !void {
const fd = try std.posix.open(console_dev, .{ .ACCMODE = .WRONLY }, 0);
defer std.posix.close(fd);
_ = std.c.ioctl(fd, vt.VT_ACTIVATE, tty);
_ = std.c.ioctl(fd, vt.VT_WAITACTIVE, tty);
}
pub fn getLockState(console_dev: []const u8) !struct {
numlock: bool,
capslock: bool,
} {
const fd = std.c.open(console_dev, .{ .ACCMODE = .RDONLY });
if (fd < 0) return error.CannotOpenConsoleDev;
defer _ = std.c.close(fd);
const fd = try std.posix.open(console_dev, .{ .ACCMODE = .RDONLY }, 0);
defer std.posix.close(fd);
var numlock = false;
var capslock = false;
if (builtin.os.tag.isBSD()) {
var led: c_int = undefined;
_ = std.c.ioctl(fd, KDGETLED, &led);
numlock = (led & LED_NUM) != 0;
capslock = (led & LED_CAP) != 0;
_ = std.c.ioctl(fd, kbio.KDGETLED, &led);
numlock = (led & kbio.LED_NUM) != 0;
capslock = (led & kbio.LED_CAP) != 0;
} else {
var led: c_char = undefined;
_ = std.c.ioctl(fd, KDGKBLED, &led);
numlock = (led & K_NUMLOCK) != 0;
capslock = (led & K_CAPSLOCK) != 0;
_ = std.c.ioctl(fd, kd.KDGKBLED, &led);
numlock = (led & kd.K_NUMLOCK) != 0;
capslock = (led & kd.K_CAPSLOCK) != 0;
}
return .{
@@ -118,12 +114,25 @@ pub fn getLockState(console_dev: [:0]const u8) !struct {
}
pub fn setNumlock(val: bool) !void {
var led: c_char = undefined;
_ = std.c.ioctl(0, KDGKBLED, &led);
if (builtin.os.tag.isBSD()) {
var led: c_int = undefined;
_ = std.c.ioctl(0, kbio.KDGETLED, &led);
const numlock = (led & K_NUMLOCK) != 0;
const numlock = (led & kbio.LED_NUM) != 0;
if (numlock != val) {
const status = std.c.ioctl(std.posix.STDIN_FILENO, kbio.KDSETLED, led ^ kbio.LED_NUM);
if (status != 0) return error.FailedToSetNumlock;
}
return;
}
var led: c_char = undefined;
_ = std.c.ioctl(0, kd.KDGKBLED, &led);
const numlock = (led & kd.K_NUMLOCK) != 0;
if (numlock != val) {
const status = std.c.ioctl(std.posix.STDIN_FILENO, KDSKBLED, led ^ K_NUMLOCK);
const status = std.c.ioctl(std.posix.STDIN_FILENO, kd.KDSKBLED, led ^ kd.K_NUMLOCK);
if (status != 0) return error.FailedToSetNumlock;
}
}