酸柠檬猹 SourLemonJuice
SourLemonJuice
/ undefined-jock.c
Last active
June 9, 2024 19:17
What is the result of (++i)+(++i)? Is Undifined.
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| // side note: https://www.bilibili.com/video/BV1ZL411n7Yd | |
| // in clang you will get: | |
| // warning: multiple unsequenced modifications to 'i' | |
| #include <stdio.h> | |
| int main(void) | |
| { | |
| int i,b; | |
| i = 1; | |
| b = (++i)+(++i); |
SourLemonJuice
/ .clang-format
Last active
October 31, 2024 08:34
A clang-format config file(.clang-format) for SourLemonJuice(myself).
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| --- | |
| BasedOnStyle: Microsoft | |
| IndentWidth: 4 | |
| UseTab: Never | |
| LineEnding: DeriveLF | |
| MaxEmptyLinesToKeep: 1 | |
| BreakBeforeBraces: Linux | |
| AllowShortBlocksOnASingleLine: Never | |
| AllowShortIfStatementsOnASingleLine: Never | |
| IndentCaseLabels: false |
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| #include <Arduino.h> | |
| void setup() | |
| { | |
| // put your setup code here, to run once: | |
| pinMode(LED_BUILTIN, OUTPUT); | |
| } | |
| void loop() | |
| { |
SourLemonJuice
/ clash_permission.sh
Created
July 10, 2024 00:34
快速为普通用户配置 clash 运行 tun 模式的执行权限。详情在注释链接的 issue 里，这个活本身是 GUI 软件干的，但不也是有点用对吧。
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| # https://github.com/zzzgydi/clash-verge/issues/182 | |
| # as root | |
| setcap cap_net_bind_service,cap_net_admin=+ep /usr/bin/clash |
SourLemonJuice
/ main.c
Last active
August 19, 2024 19:07
It's an example, of using a UDP socket to receive server messages on port 1907. Example server command: "netcat -l -u -p 1907 localhost"
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| #include <error.h> | |
| #include <stdbool.h> | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| #include <unistd.h> | |
| #include <netinet/in.h> | |
| #include <sys/socket.h> |
SourLemonJuice
/ strnstr.c
Created
September 22, 2024 06:06
A strnstr() function in C. I was going to use this: https://stackoverflow.com/a/25705264/25416550, but its "n" start with "needle". So I implemented my own version
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| // This is free and unencumbered software released into the public domain. | |
| /* | |
| Search "needle" in "haystack", limited to the first "len" chars of haystack | |
| */ | |
| char *strnstr(char haystack[const restrict static 1], char needle[const restrict static 1], int len) | |
| { | |
| if (len <= 0) | |
| return NULL; |
SourLemonJuice
/ .prettierrc.yaml
Last active
May 10, 2025 17:45
SourLemonJuice's .prettierrc file, a JavaScript formatter
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| useTabs: false | |
| tabWidth: 2 | |
| trailingComma: all | |
| printWidth: 120 | |
| singleQuote: true | |
| semi: false |
SourLemonJuice
/ hello.asm
Last active
December 3, 2024 11:15
x86_64 Linux assmbely(nasm) example for printing Hello World.
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| ; Thanks for: | |
| ; https://p403n1x87.github.io/getting-started-with-x86-64-assembly-on-linux.html | |
| global _start | |
| SYS_WRITE equ 1 | |
| SYS_EXIT equ 60 | |
| STDOUT equ 1 | |
| SECTION .data |
SourLemonJuice
/ chrony.conf
Last active
August 16, 2025 20:46
Some example configs of Chrony NTP client. Those config files come from ArchWiki and Fedora default configurations.
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| # /etc/chrony.conf | |
| # cloudflare time server with NTS | |
| server time.cloudflare.com iburst nts | |
| driftfile /var/lib/chrony/drift | |
| rtcfile /var/lib/chrony/rtc | |
| # storage UTC time to RTC | |
| rtconutc |
SourLemonJuice
/ activate-linux.service
Last active
October 26, 2025 03:37
An example systemd user unit for activate-linux, make this watermark autostart. It's really funny, haha.
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| # put it in: /etc/systemd/user/ | |
| # and reload units(run as user self): systemctl --user daemon-reload | |
| # use for: https://github.com/MrGlockenspiel/activate-linux | |
| # | |
| # that reminds me of this: https://github.com/USSURATONCACHI/activate-linux-toggle | |
| # well, I don't like that "toggle", you can use `systemctl --user <operation> <unit-name>` to control any user unit. | |
| [Unit] | |
| Description=Activate Windows Watermark on Linux | |
| After=graphical-session.target |
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