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于镜面边缘回望

我们都是行走在镜面边缘的人。 低下头看到的,是半个迷茫的自己,和半个不见底的深渊。 到哪里,会不会跌倒,是到终点还是滑进深渊,都不知道。 唯一确定的是,自己只有一个人。

MSI、UEFI与0000424F

你肯定要问,0000424F是什么东西。 一切起源于这个 MSI MAG Z390M MORTAR。 一开始我还在用Windows 10,后来换成了openSUSE Tumbleweed,再后来是AOSC OS。 在安装AOSC OS时,我把ESP分区合并到了 /boot 当中,也就是说,我的文件系统长这样:

Passing integers on 64-bits machines

Now is the world of 64-bits architectures, x86-64, AArch64, RISC-V 64, everywhere is 64-bits architectures. However, even on 64-bits platforms, the int and unsigned int in C are still 32-bits integers. In the real world, there are lots of code processing int (32-bits integer), short (16-bits), char (8-bits), bool (1-bit) and their unsigned variants. In Zig, things are more customizable, you can…

Managing a troop of repositories

When I am getting deeper and deeper in the open-source community, I find software bugs or need new features more and more frequently. Generally, I will make a issue, submit a PR, or maintain a fork if I think those code are not suitable for being upstreamed. What if we also want to fork some extensions? It can happen in the real world. In my MediaWiki setup, I have to patch extensions frequently…

The rename of my GitHub account

Since many years ago, since my first meeting with smart phones and the Internet, I have been using the name “xtex”. It has no special meaning, except for it is a sequence of random typed letters and it looked perfect in my eyes. But soon, I found that many websites require at least six characters for user names. Thus I chose another random word “Chooser” and appended to my…

一只 OIer 的记忆碎片

梦该醒了。 昨天,2024年11月30日,是 NOIP 2024 举办的日子。 与之前的几次比赛不同,这次对我而言是特别的一次,也是我参加信息学竞赛以来对我而言最特别的一次,亦是最后一次。

The migration from neko.ci

TL; DR: I am migrating my account at @xtexchooser@neko.ci to @xtex@fe.disroot.org . If you have once followed the old account, please follow the new one. So, after a long hesitation, I finally decided to do the migration. Why? The primary motivation is that, neko.ci has been down for about a month. I found I can’t live without the fediverse. However, I have been tired with Misskey for a…

qy.yjzqy.net Filter Bypass Vulnerability Disclosure

As qy.yjzqy.net is only available in Chinese and only used in Mainland, China regions, I only provide simplified Chinese edition of this document. PDF | typst source | appendix source code PDF | typst 源文件 | 附录源代码 Please note that online PDF preview may not function well. 请注意,在线PDF预览可能无法正常工作。 This document has been assigned with DOI 10.17605/OSF.IO/G4A6D .

NOIP 2023 游记

Day 0 还是纪中,请了假周五晚上出发,老师有事没去 这次碰上纪中初中家长会,不给闲逛了 T1 没仔细看题,浪费1h,1.5h做完 T2 上搜索但是写的很乱很怪 T3 尝试特判点1但是没仔细看题,没清空导致每分

CSP-S 2023 第二轮 游记

迟到的游记 Day 0 刚好周六考试前一天周五考完月考,双休,因为我家离学校有点远就没回去(高一第一次双休没了.ogg 晚上没睡好,早上爬起来吃早餐回教室, 不想去自习,一个人在(我们班的)教室里面睡了一会儿,差不多8:00出学校

CSP-S 2023 第一轮 游记

这是重写的游记,上一篇被我不小心 git reset --hard 没了 Day -INF 怎么说呢,这是我第一次参加OI类的比赛 今年刚好初中毕业,八月用一些奇怪的方式联系上了高中学校的指导老师

XTEXX.ML to XTEXX.EU.ORG Migration

Today, ML. cTLD suddenly stopped responding NS records of most subdomains, without an announcement. I believe that it is not a mistake because it is not fixed in time and the NS server of ML is still online and responding NS records for GOUV.ML. I understand the challenge and difficulties that Mali are facing. However, considering that Gabon stopped the free service of GA cTLD a few months ago, I…

AmateursCTF Writeup

AmateursCTF 2023 misc/Discord rules sanity check Join the discord and read the rules! found Good job for reading the rules. Here’s your sanity check flag: amateursCTF{be_honest._did_you_actually_read_the_rules?} misc/guessctf 不做了就1分 tutorial level…

Crew CTF 2023 Writeup

link to CrewCTF 题解有关资源 ( .sig , Internet Archive ) Misc Sanity Join our discord : https://discord.gg/eaPVRtf3Pt #general#announcement的描述, crew{1n54n1ty_0r_s4n1ty} findme 可以看到EXIF一片空白

New SSH & GPG keys enabled

Hey, now 2023-06-29 08:32:24 CST. SSH I just enabled a new sk-ssh-ed25519@openssh.com SSH key. The public key is sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIBec9mnzRi149os0tSb2zA0aJf/c7/6wF6W5weK8+fHPAAAABHNzaDo= xtex.sk@xtexx.ml . Currently, there are two SSH-keys in use. sk-ssh-ed25519@openssh.com…

Migrated to Home

You are visiting a page that have been moved. Calm, this is not 404. For about & contact page, see https://xtexx.eu.org/ For dn42 peering, see https://w.xvnet.eu.org/wiki/DN42 Sorry for the inconvenience.

Blog重构

诶嘿,新的blog来喽 Why? 旧的blog使用的是 hexo ,主题是自制的 hexo-theme-flavor ,由Vercel部署。 这套方案主要有以下问题 nodejs在build时吃内存&慢,非常慢 node_modules ,**** 咋地我就是不喜欢node虽然我以前也经常用现在也经常用 Vercel虽然免费 但是感觉不是很Libre(cc @wikipedia_zh_cs 旧的主题不支持深色模式 New! 新的blog使用 hugo ,Golang yes!

Hackergame 2022 Writeup

签到 只需要查看页面的源代码不难找到一个 timeLimit data : { digits : [ 0 , 1 , 2 , 3 ]. map ( i => ({ touches : new Map (), context : null , timeLimit : TIME_LIMITS [ i ], timeLeft : TIME_LIMITS [ i ], timeState : 0 , // 0: before, 1: during, 2: after timeCallbackId : null , result : '?' , recognitionState : 0 , // 0: not running, 1: running and clean, 2: running and dirty })), contextForRecognition : null ,…

Burble DN42 Ping Challenge Writeup

Ping Challenge | burble.dn42 的解题思路 剧透警告 ,尽量做的时候别看 耗时三天,暑假,回校前一天上午完成(2022/8/21 10:49)。IYKYK(懂得都懂),看不懂也没关系就不是写来让你看的(

Some simply crackmes Writeup

文件链接 简单使用 这是一个由用户名和 License-Key 组成的校验程序,其中,LicKey 需要至少 17 位且其中包含 KEY ,校验失败后会重试,直接扔进 Ghidra 定位 Ghidra 直接自动识别出了 _main 函数,点进去就是了,然后反编译的代码中往下翻可以找到 Username: 和 License-Key 字样,简单的命名之后是这样的

从零开始的Hexo主题

本主题已被弃用,见 blog 重构 xtexChooser/hexo-theme-flavor on GitHub 起因 今天中午补档了一个 4 月 9 日那篇关于 OpenGL3.2 软件渲染的文章,然后 GitHub Actions 和 Vercel 构建都失败了 Hexo 构建失败打印完错误还会输出空白文件并正常退出,然后还上传到了腾讯云的 COS 上面

Hello World

Blog created! 历史 2021.8.23:删除 Hexo HelloWorld 内容 2021.8.23:添加简介 2021.8.23:自制博客主题 2023.6.11:使用Hugo重构

在不支持OpenGL3.2的设备上用软件渲染玩MC1.17

注意: 因为使用了软件渲染,对 CPU 的负担会加重,所以游戏可能会变卡 过老的版本(远古版)在此方法设置后将无法启动 测试: rd-132211(目前可下载最老版本):不可启动 4k(2009/12/1,old_alpha):可启动但黑屏 b1.4(2011/3/30 发布,old_beta):可启动 1.12:可启动 21w13a:可启动 起因 在 Minecraft 的 1.17 快照开始,Minecraft 要求使用 OpenGL3.2 以上的版本 OpenGL2.0 且有正版还玩了 n 年的我笑了(虽然这是 n 年前的版本但是我 也没钱换电脑 现在已经换了)经过一个周末的研究后得到了这个方法

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