ladybird/Userland/Utilities/errno.cpp
2021-05-15 23:51:50 +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 <LibCore/File.h>
#include <stdlib.h>
int main(int argc, char** argv)
{
bool list = false;
bool search = false;
const char* keyword = nullptr;
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(argc, argv);
if (list) {
for (int i = 0; i < sys_nerr; i++) {
outln("{} {}", i, strerror(i));
}
return 0;
}
if (keyword == nullptr)
return 0;
if (search) {
for (int i = 0; i < sys_nerr; i++) {
auto error = String::formatted("{}", strerror(i));
if (error.contains(keyword, CaseSensitivity::CaseInsensitive)) {
outln("{} {}", i, error);
}
}
return 0;
}
auto maybe_errno = StringView { keyword }.to_int();
if (!maybe_errno.has_value()) {
warnln("ERROR: Not understood: {}", keyword);
return 1;
}
auto error = String::formatted("{}", strerror(maybe_errno.value()));
if (error == "Unknown error") {
warnln("ERROR: Unknown errno: {}", keyword);
return 1;
}
outln("{} {}", keyword, error);
return 0;
}