ladybird/Kernel/Syscalls/uname.cpp

54 lines
2 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <Kernel/Process.h>
namespace Kernel {
int Process::sys$uname(Userspace<utsname*> user_buf)
{
extern String* g_hostname;
extern Lock* g_hostname_lock;
REQUIRE_PROMISE(stdio);
LOCKER(*g_hostname_lock, Lock::Mode::Shared);
if (g_hostname->length() + 1 > sizeof(utsname::nodename))
return -ENAMETOOLONG;
utsname buf {};
memcpy(buf.sysname, "SerenityOS", 11);
memcpy(buf.release, "1.0-dev", 8);
memcpy(buf.version, "FIXME", 6);
memcpy(buf.machine, "i686", 5);
memcpy(buf.nodename, g_hostname->characters(), g_hostname->length() + 1);
if (!copy_to_user(user_buf, &buf))
return -EFAULT;
return 0;
}
}