ladybird/Userland/Utilities/hostname.cpp
sin-ack 60f6bc902b Userland: Convert command line arguments to String/StringView
StringView was used where possible. Some utilities still use libc
functions which expect null-terminated strings, so String objects were
used there instead.
2022-07-12 23:11:35 +02:00

34 lines
873 B
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments args)
{
StringView hostname {};
Core::ArgsParser args_parser;
args_parser.add_positional_argument(hostname, "Hostname to set", "hostname", Core::ArgsParser::Required::No);
args_parser.parse(args);
if (hostname.is_empty()) {
outln("{}", TRY(Core::System::gethostname()));
} else {
if (hostname.length() >= HOST_NAME_MAX) {
warnln("Hostname must be less than {} characters", HOST_NAME_MAX);
return 1;
}
TRY(Core::System::sethostname(hostname));
}
return 0;
}