mirror of
https://github.com/SerenityOS/serenity
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40 lines
1.1 KiB
C++
40 lines
1.1 KiB
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 <AK/StringView.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Process.h>
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namespace Kernel {
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ErrorOr<FlatPtr> Process::sys$unlink(int dirfd, Userspace<char const*> user_path, size_t path_length, int flags)
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{
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VERIFY_NO_PROCESS_BIG_LOCK(this)
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TRY(require_promise(Pledge::cpath));
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auto path = TRY(get_syscall_path_argument(user_path, path_length));
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if (flags & ~AT_REMOVEDIR)
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return Error::from_errno(EINVAL);
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RefPtr<Custody> base;
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if (dirfd == AT_FDCWD) {
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base = current_directory();
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} else {
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auto base_description = TRY(open_file_description(dirfd));
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if (!base_description->custody())
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return Error::from_errno(EINVAL);
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base = base_description->custody();
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}
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if (flags & AT_REMOVEDIR)
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TRY(VirtualFileSystem::the().rmdir(path->view(), *base));
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else
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TRY(VirtualFileSystem::the().unlink(path->view(), *base));
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return 0;
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}
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}
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