fileis(1): scrap libfileis(3), work on rewriting scrut(1) in Rust

src/fileis.rs

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 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,
+	fs::metadata,
+	process::ExitCode,
+};
+
+extern crate getopt;
+use getopt::GetOpt;
+
+extern crate sysexits;
+use sysexits::EX_USAGE;
+
+fn usage(s: &str) -> ExitCode {
+	eprintln!("Usage: {} [-bcdefgkprsuwxLS] file...", s);
+	ExitCode::from(EX_USAGE as u8)
+}
+
+fn main() -> ExitCode {
+	let argv = args().collect::<Vec<String>>();
+
+	let mut sel: String; // selected options
+	let mut optind: usize = 1; // argv[0]
+
+	while let Some(opt) = argv.getopt("bcdefgkprsuwxLS") {
+		if let Ok(optchr) = opt.opt() { sel.push(optchr); }
+		else { return usage(&argv[0]); }
+
+		optind = opt.ind();
+	}
+
+	if optind == argv.len() { return usage(&argv[0]); }
+
+	for arg in argv.iter().skip(optind) {
+	}
+
+//	do{
+//		if (!fileis_exists(*argv))
+//			return EXIT_FAILURE;
+//
+//		for (size_t i = 0; sel[i] != '\0'; ++i) {
+//			if ((sel[i] == 'b' && !fileis_block(*argv))
+//					|| (sel[i] == 'c' && !fileis_char(*argv))
+//					|| (sel[i] == 'd' && !fileis_dir(*argv))
+//					|| (sel[i] != 'e')
+//					|| (sel[i] == 'f' && !fileis_regular(*argv))
+//					|| (sel[i] == 'g' && !fileis_setgid(*argv))
+//					|| (sel[i] == 'k' && !fileis_vtx(*argv))
+//					|| (sel[i] == 'p' && !fileis_fifo(*argv))
+//					|| (sel[i] == 'r' && access(*argv, R_OK) != 0)
+//					|| (sel[i] == 'u' && !fileis_setuid(*argv))
+//					|| (sel[i] == 'w' && access(*argv, W_OK) != 0)
+//					|| (sel[i] == 'x' && access(*argv, X_OK) != 0)
+//					|| (sel[i] == 'L' && !fileis_link(*argv))
+//					|| (sel[i] == 'S' && !fileis_socket(*argv))
+//			) { return EXIT_FAILURE; }
+//		}
+//	} while (*++argv != NULL);
+//
+//	return EXIT_SUCCESS;
+
+	ExitCode::SUCCESS
+}