[logic-finder]

$ ud --message="마인크래프트해킹버전1.13.2" --iterate=5
download: 마인크래프트해킹버전1.13.2.dll
unzip: 마인크래프트해킹버전1.13.2.jpeg
build: 마인크래프트해킹버전1.13.2.obj
extract: 마인크래프트해킹버전1.13.2.exe
remove: 마인크래프트해킹버전1.13.2.txt

So basically all the outputs take this form: <action>: <msg>.<extension>.

<action> ::= "download" | "unzip" | "build" | "extract" | "remove" | etc...
<extension> ::= "dll" | "exe" | "zip" | "obj" | "txt" | "jpeg" | etc...

[logic-finder]

It'd be nice to allow mutiple -m options like:

$ ud -m 마크립버전1.13.1 -m 로블록스립버전1.13.2 -m 어몽어스립버전1.13.3 -i5
download: 마크립버전1.13.1.dll
unzip: 로블록스립버전1.13.2.jpeg
build: 어몽어스립버전1.13.3.obj
extract: 로블록스립버전1.13.2.exe
remove: 어몽어스립버전1.13.3.txt

To implement this, let the config struct have array_t *msgs field and stores each string into msgs.

[Copilot]

🟡 Changes recommended

Negative iteration counts can trigger SIZE_MAX output lines instead of being rejected, while documented options are unrecognized and the help fallback references a missing manual.

4 open issues

• Reject negative iteration counts before conversion · New
• Register the documented --message option · New
• Register the documented --iterate option · New
• Provide or avoid the missing text manual fallback · New

What changed in this PR

Introduces ud, a fake updater for the Utils suite that prints messages in <action>: <message>.<extension> format.

Changes:

• Adds a C implementation with configurable messages, iteration counts, and English/Korean actions.
• Integrates ud into the suite’s build targets.
• Adds introductory documentation and a manual-page skeleton.

File	Description
vars.mk	Registers the ud target.
ud/​ud.1	Adds the manual-page skeleton.
ud/​README.md	Introduces the utility.
ud/​c/​ud.internals.h	Defines action translations and file extensions.
ud/​c/​ud.c	Implements startup, usage, and output generation.
ud/​c/​Makefile	Adds build and cleanup rules.
ud/​c/​global.h	Defines executable and manual paths.
ud/​c/​config.internals.h	Declares configuration helpers and shared state.
ud/​c/​config.h	Defines configuration types and interfaces.
ud/​c/​config.c	Implements defaults, validation, and manual display.
ud/​c/​argp_drivers.internals.h	Registers command-line options.
ud/​c/​argp_drivers.h	Exposes option metadata.
ud/​c/​argp_drivers.c	Handles option values and diagnostics.
ud/​c/​.gitignore	Excludes generated build artifacts.
README.md	Adds ud to the utility list.

_{Review effort: Balanced}

[logic-finder]

@lshqqytiger Done.

[Copilot]

🔵 Needs a closer look

The documented --message option is rejected, the help fallback depends on a missing file, and the unseeded random generator repeats the same update sequence across invocations.

No open issues 🎉

1 previously missed issue

In code that hasn't changed since last review

Seed the random generator before generating actions

ud/​c/​ud.c:37

rand_range() calls rand(), but this program never seeds the generator. Consequently, separate invocations with the same arguments always choose the same actions, extensions, and messages, rather than varying the fake update sequence. Call the existing seed() helper once before work(), as the other randomized utilities do.

4 resolved since last review

• Reject negative iteration counts before conversion
• Provide or avoid the missing text manual fallback
• Register the documented --iterate option
• Register the documented --message option

_{Review effort: Balanced}