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serenity/Userland/Libraries/LibSystem/Wrappers.cpp
Andreas Kling dc486fa3f9 LibSystem: Add pledge() and unveil() wrappers that return ErrorOr<void>
These will be more ergonomic to use together with TRY(). :^)
2021-11-22 18:34:08 +01:00

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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibSystem/Wrappers.h>
#include <LibSystem/syscall.h>
namespace System {
ErrorOr<void> pledge(StringView promises, StringView execpromises)
{
Syscall::SC_pledge_params params {
{ promises.characters_without_null_termination(), promises.length() },
{ execpromises.characters_without_null_termination(), execpromises.length() },
};
int rc = syscall(SC_pledge, &params);
if (rc < 0)
return Error::from_errno(-rc);
return {};
}
ErrorOr<void> unveil(StringView path, StringView permissions)
{
Syscall::SC_unveil_params params {
{ path.characters_without_null_termination(), path.length() },
{ permissions.characters_without_null_termination(), permissions.length() },
};
int rc = syscall(SC_unveil, &params);
if (rc < 0)
return Error::from_errno(-rc);
return {};
}
}