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45 lines
1.7 KiB
C++
45 lines
1.7 KiB
C++
/*
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/MappedFile.h>
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#include <LibCore/System.h>
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#include <LibELF/Image.h>
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#include <LibMain/Main.h>
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static ErrorOr<bool> is_dynamically_linked_executable(StringView filename)
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{
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auto executable = TRY(Core::System::resolve_executable_from_environment(filename));
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auto file = TRY(Core::MappedFile::map(executable));
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ELF::Image elf_image(file->bytes());
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return elf_image.is_dynamic();
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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DeprecatedString promises;
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Vector<StringView> command;
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bool add_promises_for_dynamic_linker;
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Core::ArgsParser args_parser;
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args_parser.add_option(promises, "Space-separated list of pledge promises", "promises", 'p', "promises");
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args_parser.add_option(add_promises_for_dynamic_linker, "Add temporary promises for dynamic linker", "dynamic-linker-promises", 'd');
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args_parser.add_positional_argument(command, "Command to execute", "command");
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args_parser.parse(arguments);
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if (add_promises_for_dynamic_linker && TRY(is_dynamically_linked_executable(command[0]))) {
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auto constexpr loader_promises = "stdio rpath prot_exec"sv;
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MUST(Core::System::setenv("_LOADER_PLEDGE_PROMISES"sv, loader_promises, true));
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MUST(Core::System::setenv("_LOADER_MAIN_PROGRAM_PLEDGE_PROMISES"sv, promises, true));
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promises = DeprecatedString::formatted("{} {}", promises, loader_promises);
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}
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TRY(Core::System::pledge(StringView(), promises));
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TRY(Core::System::exec(command[0], command.span(), Core::System::SearchInPath::Yes));
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return 0;
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}
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