fileis(1): scrap libfileis(3), work on rewriting scrut(1) in Rust
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parent
0f12dcc552
commit
0819eeb75d
17
Makefile
17
Makefile
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@ -32,7 +32,7 @@ RUSTLIBS = --extern getopt=build/o/libgetopt.rlib \
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CFLAGS += -I$(SYSEXITS) -Iinclude
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.PHONY: all
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all: dj false fop hru intcmp mm npc rpn scrut str strcmp swab true
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all: dj false fileis fop hru intcmp mm npc rpn scrut str strcmp swab true
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# keep build/include until bindgen(1) has stdin support
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# https://github.com/rust-lang/rust-bindgen/issues/2703
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@ -87,11 +87,6 @@ build/o/libsysexits.rlib: build/include/sysexits.h
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build/include/sysexits.h: build $(SYSEXITS)sysexits.h
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printf '\043define EXIT_FAILURE 1\n' | cat - $(SYSEXITS)sysexits.h > $@
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.PHONY: libfileis
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libfileis: build/o/libfileis.o
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build/o/libfileis.o: build src/libfileis.c
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$(CC) $(CFLAGS) -c -o $@ src/libfileis.c
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.PHONY: dj
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dj: build/bin/dj
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build/bin/dj: src/dj.c build
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@ -102,6 +97,11 @@ false: build/bin/false
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build/bin/false: src/false.c build
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$(CC) $(CFLAGS) -o $@ src/false.c
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.PHONY: fileis
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fileis: build/bin/fileis
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build/bin/fileis: src/fileis.rs build
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$(RUSTC) $(RUSTFLAGS) $(RUSTLIBS) -o $@ src/fileis.rs
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.PHONY: fop
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fop: build/bin/fop
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build/bin/fop: src/fop.rs build rustlibs
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@ -132,11 +132,6 @@ rpn: build/bin/rpn
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build/bin/rpn: src/rpn.rs build rustlibs
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$(RUSTC) $(RUSTFLAGS) $(RUSTLIBS) -o $@ src/rpn.rs
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.PHONY: scrut
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scrut: build/bin/scrut
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build/bin/scrut: src/scrut.c build libfileis
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$(CC) $(CFLAGS) -o $@ src/scrut.c build/o/libfileis.o
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.PHONY: str
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str: build/bin/str
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build/bin/str: src/str.c build
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80
src/fileis.rs
Normal file
80
src/fileis.rs
Normal file
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@ -0,0 +1,80 @@
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/*
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* Copyright (c) 2024 DTB <trinity@trinity.moe>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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use std::{
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env::args,
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fs::metadata,
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process::ExitCode,
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};
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extern crate getopt;
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use getopt::GetOpt;
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extern crate sysexits;
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use sysexits::EX_USAGE;
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fn usage(s: &str) -> ExitCode {
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eprintln!("Usage: {} [-bcdefgkprsuwxLS] file...", s);
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ExitCode::from(EX_USAGE as u8)
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}
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fn main() -> ExitCode {
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let argv = args().collect::<Vec<String>>();
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let mut sel: String; // selected options
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let mut optind: usize = 1; // argv[0]
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while let Some(opt) = argv.getopt("bcdefgkprsuwxLS") {
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if let Ok(optchr) = opt.opt() { sel.push(optchr); }
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else { return usage(&argv[0]); }
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optind = opt.ind();
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}
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if optind == argv.len() { return usage(&argv[0]); }
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for arg in argv.iter().skip(optind) {
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}
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// do{
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// if (!fileis_exists(*argv))
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// return EXIT_FAILURE;
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//
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// for (size_t i = 0; sel[i] != '\0'; ++i) {
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// if ((sel[i] == 'b' && !fileis_block(*argv))
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// || (sel[i] == 'c' && !fileis_char(*argv))
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// || (sel[i] == 'd' && !fileis_dir(*argv))
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// || (sel[i] != 'e')
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// || (sel[i] == 'f' && !fileis_regular(*argv))
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// || (sel[i] == 'g' && !fileis_setgid(*argv))
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// || (sel[i] == 'k' && !fileis_vtx(*argv))
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// || (sel[i] == 'p' && !fileis_fifo(*argv))
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// || (sel[i] == 'r' && access(*argv, R_OK) != 0)
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// || (sel[i] == 'u' && !fileis_setuid(*argv))
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// || (sel[i] == 'w' && access(*argv, W_OK) != 0)
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// || (sel[i] == 'x' && access(*argv, X_OK) != 0)
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// || (sel[i] == 'L' && !fileis_link(*argv))
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// || (sel[i] == 'S' && !fileis_socket(*argv))
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// ) { return EXIT_FAILURE; }
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// }
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// } while (*++argv != NULL);
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//
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// return EXIT_SUCCESS;
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ExitCode::SUCCESS
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}
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@ -1,27 +0,0 @@
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#include <stddef.h> /* NULL */
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#include <sys/stat.h> /* lstat(3), stat struct, S_ISBLK, S_ISCHR, S_ISDIR,
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* S_ISFIFO, S_ISGID, S_ISREG, S_ISLNK, S_ISSOCK,
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* S_ISUID, S_ISVTX */
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static char *ofn = NULL;
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static struct stat s;
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int
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fileis_exists(char *fn){
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if (fn == NULL || fn == ofn) { return ofn != NULL; }
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if (lstat(fn, &s) == -1) { return 0; }
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ofn = fn; return 1;
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}
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int fileis_block(char *fn) { return fileis_exists(fn) && S_ISBLK(s.st_mode); }
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int fileis_char(char *fn) { return fileis_exists(fn) && S_ISCHR(s.st_mode); }
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int fileis_dir(char *fn) { return fileis_exists(fn) && S_ISDIR(s.st_mode); }
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/* fileis_exec(char *fn) { return fileis_exists(fn) && } */
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int fileis_fifo(char *fn) { return fileis_exists(fn) && S_ISFIFO(s.st_mode); }
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int fileis_setgid(char *fn) { return fileis_exists(fn) && (s.st_mode & S_ISGID); }
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int fileis_link(char *fn) { return fileis_exists(fn) && S_ISLNK(s.st_mode); }
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/* fileis_read(char *fn) { return fileis_exists(fn) && } */
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int fileis_regular(char *fn){ return fileis_exists(fn) && S_ISREG(s.st_mode); }
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int fileis_socket(char *fn) { return fileis_exists(fn) && S_ISSOCK(s.st_mode); }
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int fileis_setuid(char *fn) { return fileis_exists(fn) && (s.st_mode & S_ISUID); }
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int fileis_vtx(char *fn) { return fileis_exists(fn) && (s.st_mode & S_ISVTX); }
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/* fileis_write(char *fn) { return fileis_exists(fn) && } */
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84
src/scrut.c
84
src/scrut.c
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@ -1,84 +0,0 @@
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/*
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* Copyright (c) 2023–2024 DTB <trinity@trinity.moe>
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* Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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#include <assert.h> /* assert(3) */
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#include <stdio.h> /* fprintf(3), stderr, NULL */
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#include <stdlib.h> /* EXIT_FAILURE, EXIT_SUCCESS */
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#include <string.h> /* memset(3), strchr(3) */
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#include <sysexits.h> /* EX_USAGE */
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#include <unistd.h> /* access(3), getopt(3), R_OK, W_OK, X_OK */
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#include <libfileis.h>
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char *program_name = "scrut";
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static char opts[] = "bcdefgkprsuwxLS";
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static int usage(char *s){
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fprintf(stderr, "Usage: %s [-%s] file...\n", s, opts);
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return EX_USAGE;
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}
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int main(int argc, char *argv[]){
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char sel[(sizeof opts) / (sizeof *opts)];
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if (argc > 0) { program_name = argv[0]; }
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if (argc < 2) { return usage(program_name); }
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memset(sel, '\0', sizeof sel);
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{
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int c;
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char *p = sel;
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while ((c = getopt(argc, argv, opts)) != -1) {
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if ((strchr(opts, c)) == NULL) { return usage(program_name); }
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else if ((strchr(sel, c)) == NULL) { *p++ = c; }
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assert(p - sel < (sizeof opts) / (sizeof *opts));
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}
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}
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if (optind == argc) { return usage(program_name); }
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argv += optind;
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do{
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if (!fileis_exists(*argv))
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return EXIT_FAILURE;
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for (size_t i = 0; sel[i] != '\0'; ++i) {
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if ((sel[i] == 'b' && !fileis_block(*argv))
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|| (sel[i] == 'c' && !fileis_char(*argv))
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|| (sel[i] == 'd' && !fileis_dir(*argv))
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|| (sel[i] != 'e')
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|| (sel[i] == 'f' && !fileis_regular(*argv))
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|| (sel[i] == 'g' && !fileis_setgid(*argv))
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|| (sel[i] == 'k' && !fileis_vtx(*argv))
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|| (sel[i] == 'p' && !fileis_fifo(*argv))
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|| (sel[i] == 'r' && access(*argv, R_OK) != 0)
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|| (sel[i] == 'u' && !fileis_setuid(*argv))
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|| (sel[i] == 'w' && access(*argv, W_OK) != 0)
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|| (sel[i] == 'x' && access(*argv, X_OK) != 0)
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|| (sel[i] == 'L' && !fileis_link(*argv))
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|| (sel[i] == 'S' && !fileis_socket(*argv))
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) { return EXIT_FAILURE; }
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}
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} while (*++argv != NULL);
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return EXIT_SUCCESS;
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}
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