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