ladybird/Userland/Utilities/pledge.cpp
Ali Mohammad Pur 5e1499d104 Everywhere: Rename {Deprecated => Byte}String
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).

This commit is auto-generated:
  $ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
    Meta Ports Ladybird Tests Kernel)
  $ perl -pie 's/\bDeprecatedString\b/ByteString/g;
    s/deprecated_string/byte_string/g' $xs
  $ clang-format --style=file -i \
    $(git diff --name-only | grep \.cpp\|\.h)
  $ gn format $(git ls-files '*.gn' '*.gni')
2023-12-17 18:25:10 +03:30

45 lines
1.7 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibCore/ArgsParser.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 executable = TRY(Core::System::resolve_executable_from_environment(filename));
auto file = TRY(Core::MappedFile::map(executable));
ELF::Image elf_image(file->bytes());
return elf_image.is_dynamic();
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
ByteString 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 = ByteString::formatted("{} {}", promises, loader_promises);
}
TRY(Core::System::pledge(StringView(), promises));
TRY(Core::System::exec(command[0], command.span(), Core::System::SearchInPath::Yes));
return 0;
}