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94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/ByteBuffer.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <ctype.h>
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int main(int argc, char** argv)
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{
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Core::ArgsParser args_parser;
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const char* path = nullptr;
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args_parser.add_positional_argument(path, "Input", "input", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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RefPtr<Core::File> file;
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if (!path) {
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file = Core::File::standard_input();
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} else {
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auto file_or_error = Core::File::open(path, Core::File::ReadOnly);
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if (file_or_error.is_error()) {
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warnln("Failed to open {}: {}", path, file_or_error.error());
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return 1;
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}
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file = file_or_error.value();
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}
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auto contents = file->read_all();
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Vector<u8, 16> line;
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auto print_line = [&] {
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for (size_t i = 0; i < 16; ++i) {
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if (i < line.size())
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printf("%02x ", line[i]);
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else
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printf(" ");
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if (i == 7)
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printf(" ");
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}
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printf(" ");
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for (size_t i = 0; i < 16; ++i) {
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if (i < line.size() && isprint(line[i]))
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putchar(line[i]);
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else
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putchar(' ');
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}
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putchar('\n');
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};
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for (size_t i = 0; i < contents.size(); ++i) {
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line.append(contents[i]);
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if (line.size() == 16) {
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print_line();
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line.clear();
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}
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}
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if (!line.is_empty())
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print_line();
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return 0;
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}
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