50 lines
1.2 KiB
Go
Executable File
50 lines
1.2 KiB
Go
Executable File
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build amd64
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package fsgofer
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import (
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"syscall"
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"unsafe"
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"gvisor.dev/gvisor/pkg/abi/linux"
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"gvisor.dev/gvisor/pkg/syserr"
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)
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func statAt(dirFd int, name string) (syscall.Stat_t, error) {
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nameBytes, err := syscall.BytePtrFromString(name)
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if err != nil {
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return syscall.Stat_t{}, err
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}
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namePtr := unsafe.Pointer(nameBytes)
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var stat syscall.Stat_t
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statPtr := unsafe.Pointer(&stat)
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if _, _, errno := syscall.Syscall6(
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syscall.SYS_NEWFSTATAT,
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uintptr(dirFd),
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uintptr(namePtr),
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uintptr(statPtr),
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linux.AT_SYMLINK_NOFOLLOW,
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0,
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0); errno != 0 {
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return syscall.Stat_t{}, syserr.FromHost(errno).ToError()
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}
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return stat, nil
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}
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