ladybird/Userland/Utilities/errno.cpp
Linus Groh 6e19ab2bbc AK+Everywhere: Rename String to DeprecatedString
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 :^)
2022-12-06 08:54:33 +01:00

58 lines
1.5 KiB
C++

/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibMain/Main.h>
#include <string.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
bool list = false;
bool search = false;
StringView keyword;
Core::ArgsParser args_parser;
args_parser.add_positional_argument(keyword, "Error number or string to search", "keyword", Core::ArgsParser::Required::No);
args_parser.add_option(list, "List all errno values", "list", 'l');
args_parser.add_option(search, "Search for error descriptions containing keyword", "search", 's');
args_parser.parse(arguments);
if (list) {
for (int i = 0; i < sys_nerr; i++) {
outln("{} {}", i, strerror(i));
}
return 0;
}
if (keyword.is_empty())
return 0;
if (search) {
for (int i = 0; i < sys_nerr; i++) {
auto error = DeprecatedString::formatted("{}", strerror(i));
if (error.contains(keyword, CaseSensitivity::CaseInsensitive)) {
outln("{} {}", i, error);
}
}
return 0;
}
auto maybe_errno = keyword.to_int();
if (!maybe_errno.has_value()) {
warnln("ERROR: Not understood: {}", keyword);
return 1;
}
auto error = DeprecatedString::formatted("{}", strerror(maybe_errno.value()));
if (error == "Unknown error"sv) {
warnln("ERROR: Unknown errno: {}", keyword);
return 1;
}
outln("{} {}", keyword, error);
return 0;
}