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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, kleines Filmröllchen <filmroellchen@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypedTransfer.h>
#include <Kernel/Process.h>
#include <Kernel/Version.h>
namespace Kernel {
ErrorOr<FlatPtr> Process::sys$uname(Userspace<utsname*> user_buf)
{
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
utsname buf
{
"SerenityOS",
{}, // Hostname, filled in below.
{}, // "Release" (1.0-dev), filled in below.
{}, // "Revision" (git commit hash), filled in below.
#if ARCH(X86_64)
"x86_64",
#elif ARCH(AARCH64)
"AArch64",
#else
# error Unknown architecture
#endif
};
auto version_string = TRY(KString::formatted("{}.{}-dev", SERENITY_MAJOR_REVISION, SERENITY_MINOR_REVISION));
AK::TypedTransfer<u8>::copy(reinterpret_cast<u8*>(buf.release), version_string->bytes().data(), min(version_string->length(), UTSNAME_ENTRY_LEN - 1));
AK::TypedTransfer<u8>::copy(reinterpret_cast<u8*>(buf.version), SERENITY_VERSION.bytes().data(), min(SERENITY_VERSION.length(), UTSNAME_ENTRY_LEN - 1));
hostname().with_shared([&](auto const& name) {
auto length = min(name->length(), UTSNAME_ENTRY_LEN - 1);
AK::TypedTransfer<char>::copy(reinterpret_cast<char*>(buf.nodename), name->characters(), length);
buf.nodename[length] = '\0';
});
TRY(copy_to_user(user_buf, &buf));
return 0;
}
}
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