Nobody expects the Ziguanas (#517)

* Add build.zig, remove makefile, add .idea directory to .gitignore

* Remove submodules, add projects directly

* Remove submodules

* Add projects

* Rename sub/ to dep/, remove makefiles

* Rewrite main.c

* Remove Argoat dependency

* Remove unused dependencies

* Rewrite config.c

* Add files

* Change default fg to 8 in config.ini

* Partially rewrite utils.c

* Use Zig package manager

* Rewrite INPUTS enum in Zig

* Commit unfinished full rewrite (Zig 0.11.0)
What needs to be dealt with:
- Matrix animation
- Authentication part
- Testing on actual TTY (not just virtual console)

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Implement more (untested) authentication code

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Fix some bugs (hopefully)

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Try to fix some more bugs

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Oops, forgot to allocate hehe

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Changes in the Zig rewrite (#596)

* Everything

* make matrix.zig a bit cleaner

* make long lines shorter and add changelog

* vi mode

* update changelog

* get errors from child process and (hopefully) fix some other things

* fix utmp entry

* run authentication in a child process

* update changelog

* small code improvements

* change that

* clear terminal on SIGTERM

* Remove LogFile

* moved ini to a lib, fixed alternative langs

* fix logging out

* oops

* code improvements

* consistency

* clearing the env isn't needed anymore (afaik)

* replace vi_mode with a bool

* type aliases, avoiding zeroes(), breaking a long line

* lowercase insert/normal, merge conditionals, code improvements

* Add experimental save file migrator + bug fixes + add "-dev" version suffix

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Resolve conflicts

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Clean up when SIGTERM is received (#597)

* clean up child processes on SIGTERM

* small code improvement

* consistency.. i guess?

* Properly set XDG_CURRENT_DESKTOP

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Zig 0.12.0 and more! (#599)

* less alloc, update migrator, get DesktopNames from .desktop

* small cleanup

* Update zigini to improve compatibility with old config

* Code improvements

* Update to zig version 0.12.0

* Some fixes

* tiny changes

* remove useless comment

* migrator changes, and small things

* set XDG env vars differently

* free memory on error when appending environments

* Fix out of bounds issue when using the Delete key

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Update zig-ini to fix configuration issue (#603)

* Mention display-manager-init for Gentoo/OpenRC in readme.md

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Tidy up readme.md

Signed-off-by: AnErrupTion <anerruption@disroot.org>

* Fix authentication in a few edge cases (#604)

* fix loginConv and auth

* fix potential mem leak with configs

* BIG changes

---------

Signed-off-by: AnErrupTion <anerruption@disroot.org>
Co-authored-by: アシュ <120780645+Kawaii-Ash@users.noreply.github.com>

src/interop.zig

@@ -0,0 +1,108 @@
+const std = @import("std");
+const builtin = @import("builtin");
+const Allocator = std.mem.Allocator;
+
+pub const termbox = @cImport({
+    @cInclude("termbox.h");
+});
+
+pub const pam = @cImport({
+    @cInclude("security/pam_appl.h");
+});
+
+pub const utmp = @cImport({
+    @cInclude("utmp.h");
+});
+
+pub const xcb = @cImport({
+    @cInclude("xcb/xcb.h");
+});
+
+pub const c_size = u64;
+pub const c_uid = u32;
+pub const c_gid = u32;
+pub const c_time = c_long;
+pub const tm = extern struct {
+    tm_sec: c_int,
+    tm_min: c_int,
+    tm_hour: c_int,
+    tm_mday: c_int,
+    tm_mon: c_int,
+    tm_year: c_int,
+    tm_wday: c_int,
+    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 KDGKBLED: c_int = 0x4B64;
+
+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 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;
+pub extern "c" fn endusershell() void;
+pub extern "c" fn initgroups(user: [*:0]const u8, group: c_gid) c_int;
+
+pub fn timeAsString(buf: [:0]u8, format: [:0]const u8) ![]u8 {
+    const timer = std.time.timestamp();
+    const tm_info = localtime(&timer);
+
+    const len = strftime(buf, buf.len, format, tm_info);
+    if (len < 0) return error.CannotGetFormattedTime;
+
+    return buf[0..len];
+}
+
+pub fn getLockState(console_dev: [:0]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);
+
+    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;
+    } else {
+        var led: c_char = undefined;
+        _ = std.c.ioctl(fd, KDGKBLED, &led);
+        numlock = (led & K_NUMLOCK) != 0;
+        capslock = (led & K_CAPSLOCK) != 0;
+    }
+
+    return .{
+        .numlock = numlock,
+        .capslock = capslock,
+    };
+}