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Utilities: Add "pledge" utility for launching a sandboxed command

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This new command allows you to run any command with an initial set
of pledge promises.

Note that dynamically linked executables won't be able to bootstrap
without at least "stdio rpath prot_exec".

Inspired by http://justine.lol/pledge/ :^)
This commit is contained in:
Andreas Kling 2022-07-14 21:49:26 +02:00
parent 976562b817
commit ed9b2a85ed
2 changed files with 25 additions and 0 deletions
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24
Userland/Utilities/pledge.cpp Normal file
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/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/ArgsParser.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
StringView promises;
Vector<StringView> command;
Core::ArgsParser args_parser;
args_parser.add_option(promises, "Space-separated list of pledge promises", "promises", 'p', "promises");
args_parser.add_positional_argument(command, "Command to execute", "command");
args_parser.parse(arguments);
TRY(Core::System::pledge(StringView(), promises));
TRY(Core::System::exec(command[0], command.span(), Core::System::SearchInPath::Yes));
return 0;
}