argued(1): re-write in Rust

Makefile

@@ -89,8 +89,8 @@ build/include/sysexits.h: build $(SYSEXITS)sysexits.h
 
 .PHONY: argued
 argued: build/bin/argued
-build/bin/argued: src/argued.c build
+build/bin/argued: src/argued.rs build
-	$(CC) $(CFLAGS) -o $@ src/argued.c
+	$(RUSTC) $(RUSTFLAGS) -o $@ src/argued.rs
 
 .PHONY: dj
 dj: build/bin/dj

src/argued.c

@@ -1,9 +0,0 @@
-/*
- * Copyright (c) 2022–2024 DTB <trinity@trinity.moe>
- * SPDX-License-Identifier: CC0
- *
- * This work is marked with CC0 1.0. To view a copy of this license, visit
- * <http://creativecommons.org/publicdomain/zero/1.0>.
- */
-
-int main(int argc, char *argv[]){ return !(argc > 1); }

src/argued.rs

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2022_2024 DTB <trinity@trinity.moe>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/.
+ */
+
+ use std::{ env::args, process::ExitCode };
+
+ fn main() -> ExitCode {
+ 	let argv = args().collect::<Vec<String>>();
+
+ 	match argv.len() {
+ 		0 | 1 => ExitCode::FAILURE,
+ 		_ =>     ExitCode::SUCCESS
+ 	}
+ }