Maxime “pep” Buquet
7fa4a2079a
To force the user to use .as_st so that it's more obvious that we don't take the ownership of the String. Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>
61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
// Copyright (C) 2020 "Maxime “pep” Buquet <pep@bouah.net>"
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU Affero General Public License as published by the
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// Free Software Foundation, either version 3 of the License, or (at your
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// option) any 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
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
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// for more 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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use std::convert::TryFrom;
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use std::fs;
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use std::path::PathBuf;
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use pkstrings::PKString;
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use structopt::StructOpt;
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#[derive(Debug, StructOpt)]
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#[structopt(name = "strings", about = "Display printable strings in [file(s)]")]
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struct Opt {
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#[structopt(parse(from_os_str), long, short)]
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files: Vec<PathBuf>,
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}
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fn print_buffer(offset: usize, buffer: &Vec<String>) {
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let mut res: String = String::new();
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for buf in buffer {
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res.push_str(buf.as_str());
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}
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println!("{}: {}", format!("{:#7x}", offset), res);
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}
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fn read_data(data: Vec<u8>) {
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let mut buffer: Vec<String> = Vec::new();
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for (offset, ord) in data.iter().enumerate() {
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// Read current chr
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if let Ok(pkstr) = PKString::try_from(&[*ord][..]) {
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buffer.push(String::from(pkstr));
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} else {
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if buffer.len() >= 4 {
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print_buffer(offset, &buffer);
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}
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buffer.clear();
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}
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}
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}
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fn main() {
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let opt = Opt::from_args();
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for file in opt.files {
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let data: Vec<u8> = fs::read(file).unwrap();
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read_data(data)
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}
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}
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