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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/DeprecatedString.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <grp.h>
#include <string.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio rpath chown"));
char const* gid_arg = nullptr;
StringView path {};
bool dont_follow_symlinks = false;
Core::ArgsParser args_parser;
args_parser.set_general_help("Change the owning group for a file or directory.");
args_parser.add_option(dont_follow_symlinks, "Don't follow symlinks", "no-dereference", 'h');
args_parser.add_positional_argument(gid_arg, "Group ID", "gid");
args_parser.add_positional_argument(path, "Path to file", "path");
args_parser.parse(arguments);
gid_t new_gid = -1;
if (DeprecatedString(gid_arg).is_empty()) {
warnln("Empty gid option");
return 1;
}
auto number = DeprecatedString(gid_arg).to_uint();
if (number.has_value()) {
new_gid = number.value();
} else {
auto* group = getgrnam(gid_arg);
if (!group) {
warnln("Unknown group '{}'", gid_arg);
return 1;
}
new_gid = group->gr_gid;
}
if (dont_follow_symlinks) {
TRY(Core::System::lchown(path, -1, new_gid));
} else {
TRY(Core::System::chown(path, -1, new_gid));
}
return 0;
}
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