101 lines
3.2 KiB
Zig
101 lines
3.2 KiB
Zig
const std = @import("std");
|
|
const c_sysinfo = @cImport(@cInclude("sys/sysinfo.h"));
|
|
const c_utsname = @cImport(@cInclude("sys/utsname.h"));
|
|
|
|
/// Struct representing system uptime in days, hours, and minutes.
|
|
pub const SystemUptime = struct {
|
|
days: i8,
|
|
hours: i8,
|
|
minutes: i8,
|
|
};
|
|
|
|
/// Struct representing Kernel informations
|
|
pub const KernelInfo = struct {
|
|
kernel_name: []u8,
|
|
kernel_release: []u8,
|
|
};
|
|
|
|
pub fn getHostname(allocator: std.mem.Allocator) ![]u8 {
|
|
var buf: [std.posix.HOST_NAME_MAX]u8 = undefined;
|
|
const hostnameEnv = try std.posix.gethostname(&buf);
|
|
|
|
const hostname = try allocator.dupe(u8, hostnameEnv);
|
|
|
|
return hostname;
|
|
}
|
|
|
|
pub fn getLocale(allocator: std.mem.Allocator) ![]u8 {
|
|
const locale = std.process.getEnvVarOwned(allocator, "LANG") catch |err| if (err == error.EnvironmentVariableNotFound) {
|
|
return allocator.dupe(u8, "Unknown");
|
|
} else return err;
|
|
return locale;
|
|
}
|
|
|
|
/// Returns the system uptime.
|
|
///
|
|
/// Uses `sysinfo` to fetch the system uptime and calculates the elapsed time.
|
|
pub fn getSystemUptime() !SystemUptime {
|
|
const seconds_per_day: f64 = 86400.0;
|
|
const hours_per_day: f64 = 24.0;
|
|
const seconds_per_hour: f64 = 3600.0;
|
|
const seconds_per_minute: f64 = 60.0;
|
|
|
|
var info: c_sysinfo.struct_sysinfo = undefined;
|
|
if (c_sysinfo.sysinfo(&info) != 0) {
|
|
return error.SysinfoFailed;
|
|
}
|
|
|
|
const uptime_seconds: f64 = @as(f64, @floatFromInt(info.uptime));
|
|
|
|
var remainig_seconds: f64 = uptime_seconds;
|
|
const days: f64 = @floor(remainig_seconds / seconds_per_day);
|
|
|
|
remainig_seconds = (remainig_seconds / seconds_per_day) - days;
|
|
const hours = @floor(remainig_seconds * hours_per_day);
|
|
|
|
remainig_seconds = (remainig_seconds * hours_per_day) - hours;
|
|
const minutes = @floor((remainig_seconds * seconds_per_hour) / seconds_per_minute);
|
|
|
|
return SystemUptime{
|
|
.days = @as(i8, @intFromFloat(days)),
|
|
.hours = @as(i8, @intFromFloat(hours)),
|
|
.minutes = @as(i8, @intFromFloat(minutes)),
|
|
};
|
|
}
|
|
|
|
pub fn getKernelInfo(allocator: std.mem.Allocator) !KernelInfo {
|
|
var uts: c_utsname.struct_utsname = undefined;
|
|
if (c_utsname.uname(&uts) != 0) {
|
|
return error.UnameFailed;
|
|
}
|
|
|
|
return KernelInfo{
|
|
.kernel_name = try allocator.dupe(u8, std.mem.sliceTo(&uts.sysname, 0)),
|
|
.kernel_release = try allocator.dupe(u8, std.mem.sliceTo(&uts.release, 0)),
|
|
};
|
|
}
|
|
|
|
pub fn getOsInfo(allocator: std.mem.Allocator) ![]u8 {
|
|
const os_release_path = "/etc/os-release";
|
|
const file = try std.fs.cwd().openFile(os_release_path, .{});
|
|
defer file.close();
|
|
const os_release_data = try file.readToEndAlloc(allocator, std.math.maxInt(usize));
|
|
defer allocator.free(os_release_data);
|
|
|
|
var pretty_name: ?[]const u8 = null;
|
|
|
|
var lines = std.mem.splitScalar(u8, os_release_data, '\n');
|
|
while (lines.next()) |line| {
|
|
if (std.mem.startsWith(u8, line, "PRETTY_NAME")) {
|
|
var parts = std.mem.splitScalar(u8, line, '=');
|
|
_ = parts.next(); // discard the key
|
|
if (parts.next()) |value| {
|
|
pretty_name = std.mem.trim(u8, value, "\"");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return try allocator.dupe(u8, pretty_name orelse "Unknown");
|
|
}
|