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96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <bits/posix1_lim.h>
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#include <unistd.h>
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int main(int argc, char** argv)
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{
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bool fail = false;
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static bool flag_most_posix = false;
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static bool flag_portability = false;
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static bool flag_empty_name_and_leading_dash = false;
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if (pledge("stdio rpath", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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Vector<const char*> paths;
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Core::ArgsParser args_parser;
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args_parser.add_option(flag_most_posix, "Check for most POSIX systems", nullptr, 'p');
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args_parser.add_option(flag_empty_name_and_leading_dash, "Check for empty names and leading dash", nullptr, 'P');
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args_parser.add_option(flag_portability, "Check portability (equivalent to -p and -P)", "portability", '\0');
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args_parser.add_positional_argument(paths, "Path to check", "path", Core::ArgsParser::Required::Yes);
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args_parser.parse(argc, argv);
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if (flag_portability) {
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flag_most_posix = true;
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flag_empty_name_and_leading_dash = true;
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}
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for (auto& path : paths) {
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auto str_path = String(path);
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unsigned long path_max = flag_most_posix ? _POSIX_PATH_MAX : pathconf(str_path.characters(), _PC_PATH_MAX);
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unsigned long name_max = flag_most_posix ? _POSIX_NAME_MAX : pathconf(str_path.characters(), _PC_NAME_MAX);
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if (str_path.length() > path_max) {
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warnln("{}: limit {} exceeded by length {} of file name '{}'", argv[0], path_max, str_path.length(), str_path);
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fail = true;
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continue;
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}
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if (flag_most_posix) {
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// POSIX portable file name character set (a-z A-Z 0-9 . _ -)
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for (long unsigned i = 0; i < str_path.length(); ++i) {
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auto c = path[i];
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if (!(c >= 'a' && c <= 'z') && !(c >= 'A' && c <= 'Z') && !(c >= '0' && c <= '9') && c != '/' && c != '.' && c != '-' && c != '_') {
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warnln("{}: non-portable character '{}' in file name '{}'", argv[0], path[i], str_path);
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fail = true;
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continue;
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}
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}
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} else {
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struct stat st;
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if (lstat(str_path.characters(), &st) < 0) {
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if (errno != ENOENT) {
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warnln("{}: directory is not searchable '{}'", argv[0], str_path);
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fail = true;
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continue;
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}
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}
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}
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if (flag_empty_name_and_leading_dash) {
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if (str_path.is_empty()) {
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warnln("{}: empty file name", argv[0]);
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fail = true;
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continue;
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}
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}
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for (auto& component : str_path.split('/')) {
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if (flag_empty_name_and_leading_dash) {
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if (component.starts_with('-')) {
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warnln("{}: leading '-' in a component of file name '{}'", argv[0], str_path);
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fail = true;
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break;
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}
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}
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if (component.length() > name_max) {
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warnln("{}: limit {} exceeded by length {} of file name component '{}'", argv[0], name_max, component.length(), component.characters());
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fail = true;
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break;
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}
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}
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}
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return fail;
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}
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