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https://github.com/LadybirdBrowser/ladybird.git
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6e19ab2bbc
We have a new, improved string type coming up in AK (OOM aware, no null state), and while it's going to use UTF-8, the name UTF8String is a mouthful - so let's free up the String name by renaming the existing class. Making the old one have an annoying name will hopefully also help with quick adoption :^)
92 lines
3.2 KiB
C++
92 lines
3.2 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/DeprecatedString.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <bits/posix1_lim.h>
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#include <unistd.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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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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Vector<DeprecatedString> 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(arguments);
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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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unsigned long path_max = flag_most_posix ? _POSIX_PATH_MAX : pathconf(path.characters(), _PC_PATH_MAX);
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unsigned long name_max = flag_most_posix ? _POSIX_NAME_MAX : pathconf(path.characters(), _PC_NAME_MAX);
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if (path.length() > path_max) {
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warnln("Limit {} exceeded by length {} of filename '{}'", path_max, path.length(), 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 filename character set (a-z A-Z 0-9 . _ -)
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for (long unsigned i = 0; i < 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 filename '{}'", path[i], 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(path.characters(), &st) < 0) {
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if (errno != ENOENT) {
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warnln("Directory is not searchable '{}'", 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 (path.is_empty()) {
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warnln("Empty filename");
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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 : 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 filename '{}'", 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 filename component '{}'", 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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