2c4ae3b0a4
Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для неё не нужна. Module path github.com/sagernet/gvisor сохранён намеренно: на него опирается replace-директива суперпроекта. Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show и переносилась на новый пин копированием. SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright 2022 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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// Package fsutil contains filesystem utilities that can be shared between the
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// sentry and other sandbox components.
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package fsutil
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import "golang.org/x/sys/unix"
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// DirentHandler is a function that handles a dirent.
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type DirentHandler func(ino uint64, off int64, ftype uint8, name string, reclen uint16)
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// ForEachDirent retrieves all dirents from dirfd using getdents64(2) and
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// invokes handleDirent on them.
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func ForEachDirent(dirfd int, handleDirent DirentHandler) error {
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var direntsBuf [8192]byte
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for {
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n, err := unix.Getdents(dirfd, direntsBuf[:])
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if err != nil {
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return err
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}
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if n <= 0 {
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return nil
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}
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ParseDirents(direntsBuf[:n], handleDirent)
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}
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}
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// DirentNames retrieves all dirents from dirfd using getdents64(2) and returns
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// all the recorded dirent names.
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func DirentNames(dirfd int) ([]string, error) {
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var names []string
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err := ForEachDirent(dirfd, func(_ uint64, _ int64, _ uint8, name string, _ uint16) {
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names = append(names, name)
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})
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return names, err
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}
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