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7c87891c06
Instead of copying a Vector everytime we need to enumerate a Process' file descriptions, we can just temporarily lock so it won't change.
33 lines
893 B
C++
33 lines
893 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/FileSystem/FileDescription.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$fchown(int fd, uid_t uid, gid_t gid)
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{
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REQUIRE_PROMISE(chown);
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auto description = fds().file_description(fd);
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if (!description)
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return EBADF;
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return description->chown(uid, gid);
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}
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KResultOr<FlatPtr> Process::sys$chown(Userspace<const Syscall::SC_chown_params*> user_params)
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{
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REQUIRE_PROMISE(chown);
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Syscall::SC_chown_params params;
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if (!copy_from_user(¶ms, user_params))
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return EFAULT;
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auto path = get_syscall_path_argument(params.path);
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if (path.is_error())
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return path.error();
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return VFS::the().chown(path.value()->view(), params.uid, params.gid, current_directory());
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}
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}
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