mirror of
https://github.com/openfaas/faasd.git
synced 2025-06-18 12:06:36 +00:00
Migrate to containerd 1.54
Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>
This commit is contained in:
Alex Ellis (OpenFaaS Ltd)
committed by
Alex Ellis
Alex Ellis
parent
4c9c66812a
commit
2ae8b31ac0
128
vendor/github.com/containerd/continuity/sysx/file_posix.go
generated
vendored
128
vendor/github.com/containerd/continuity/sysx/file_posix.go
generated
vendored
@ -1,128 +0,0 @@
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/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package sysx
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import (
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"os"
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"path/filepath"
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"github.com/containerd/continuity/syscallx"
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)
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// Readlink returns the destination of the named symbolic link.
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// If there is an error, it will be of type *PathError.
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func Readlink(name string) (string, error) {
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for len := 128; ; len *= 2 {
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b := make([]byte, len)
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n, e := fixCount(syscallx.Readlink(fixLongPath(name), b))
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if e != nil {
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return "", &os.PathError{Op: "readlink", Path: name, Err: e}
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}
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if n < len {
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return string(b[0:n]), nil
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}
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}
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}
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// Many functions in package syscall return a count of -1 instead of 0.
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// Using fixCount(call()) instead of call() corrects the count.
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func fixCount(n int, err error) (int, error) {
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if n < 0 {
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n = 0
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}
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return n, err
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}
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// fixLongPath returns the extended-length (\\?\-prefixed) form of
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// path when needed, in order to avoid the default 260 character file
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// path limit imposed by Windows. If path is not easily converted to
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// the extended-length form (for example, if path is a relative path
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// or contains .. elements), or is short enough, fixLongPath returns
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// path unmodified.
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//
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// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath
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func fixLongPath(path string) string {
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// Do nothing (and don't allocate) if the path is "short".
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// Empirically (at least on the Windows Server 2013 builder),
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// the kernel is arbitrarily okay with < 248 bytes. That
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// matches what the docs above say:
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// "When using an API to create a directory, the specified
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// path cannot be so long that you cannot append an 8.3 file
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// name (that is, the directory name cannot exceed MAX_PATH
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// minus 12)." Since MAX_PATH is 260, 260 - 12 = 248.
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//
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// The MSDN docs appear to say that a normal path that is 248 bytes long
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// will work; empirically the path must be less then 248 bytes long.
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if len(path) < 248 {
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// Don't fix. (This is how Go 1.7 and earlier worked,
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// not automatically generating the \\?\ form)
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return path
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}
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// The extended form begins with \\?\, as in
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// \\?\c:\windows\foo.txt or \\?\UNC\server\share\foo.txt.
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// The extended form disables evaluation of . and .. path
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// elements and disables the interpretation of / as equivalent
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// to \. The conversion here rewrites / to \ and elides
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// . elements as well as trailing or duplicate separators. For
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// simplicity it avoids the conversion entirely for relative
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// paths or paths containing .. elements. For now,
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// \\server\share paths are not converted to
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// \\?\UNC\server\share paths because the rules for doing so
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// are less well-specified.
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if len(path) >= 2 && path[:2] == `\\` {
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// Don't canonicalize UNC paths.
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return path
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}
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if !filepath.IsAbs(path) {
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// Relative path
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return path
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}
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const prefix = `\\?`
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pathbuf := make([]byte, len(prefix)+len(path)+len(`\`))
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copy(pathbuf, prefix)
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n := len(path)
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r, w := 0, len(prefix)
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for r < n {
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switch {
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case os.IsPathSeparator(path[r]):
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// empty block
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r++
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case path[r] == '.' && (r+1 == n || os.IsPathSeparator(path[r+1])):
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// /./
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r++
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case r+1 < n && path[r] == '.' && path[r+1] == '.' && (r+2 == n || os.IsPathSeparator(path[r+2])):
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// /../ is currently unhandled
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return path
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default:
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pathbuf[w] = '\\'
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w++
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for ; r < n && !os.IsPathSeparator(path[r]); r++ {
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pathbuf[w] = path[r]
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w++
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}
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}
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}
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// A drive's root directory needs a trailing \
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if w == len(`\\?\c:`) {
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pathbuf[w] = '\\'
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w++
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}
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return string(pathbuf[:w])
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}
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2
vendor/github.com/containerd/continuity/sysx/nodata_unix.go
generated
vendored
2
vendor/github.com/containerd/continuity/sysx/nodata_unix.go
generated
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@ -1,4 +1,4 @@
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// +build darwin freebsd
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// +build darwin freebsd openbsd
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/*
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Copyright The containerd Authors.
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72
vendor/github.com/containerd/continuity/sysx/xattr.go
generated
vendored
72
vendor/github.com/containerd/continuity/sysx/xattr.go
generated
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@ -20,7 +20,6 @@ package sysx
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import (
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"bytes"
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"syscall"
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"golang.org/x/sys/unix"
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)
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@ -66,60 +65,53 @@ func LGetxattr(path, attr string) ([]byte, error) {
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return getxattrAll(path, attr, unix.Lgetxattr)
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}
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const defaultXattrBufferSize = 5
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const defaultXattrBufferSize = 128
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type listxattrFunc func(path string, dest []byte) (int, error)
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func listxattrAll(path string, listFunc listxattrFunc) ([]string, error) {
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var p []byte // nil on first execution
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for {
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n, err := listFunc(path, p) // first call gets buffer size.
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buf := make([]byte, defaultXattrBufferSize)
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n, err := listFunc(path, buf)
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for err == unix.ERANGE {
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// Buffer too small, use zero-sized buffer to get the actual size
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n, err = listFunc(path, []byte{})
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if err != nil {
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return nil, err
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}
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if n > len(p) {
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p = make([]byte, n)
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continue
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}
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p = p[:n]
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ps := bytes.Split(bytes.TrimSuffix(p, []byte{0}), []byte{0})
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var entries []string
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for _, p := range ps {
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s := string(p)
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if s != "" {
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entries = append(entries, s)
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}
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}
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return entries, nil
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buf = make([]byte, n)
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n, err = listFunc(path, buf)
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}
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if err != nil {
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return nil, err
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}
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ps := bytes.Split(bytes.TrimSuffix(buf[:n], []byte{0}), []byte{0})
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var entries []string
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for _, p := range ps {
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if len(p) > 0 {
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entries = append(entries, string(p))
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}
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}
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return entries, nil
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}
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type getxattrFunc func(string, string, []byte) (int, error)
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func getxattrAll(path, attr string, getFunc getxattrFunc) ([]byte, error) {
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p := make([]byte, defaultXattrBufferSize)
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for {
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n, err := getFunc(path, attr, p)
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buf := make([]byte, defaultXattrBufferSize)
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n, err := getFunc(path, attr, buf)
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for err == unix.ERANGE {
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// Buffer too small, use zero-sized buffer to get the actual size
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n, err = getFunc(path, attr, []byte{})
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if err != nil {
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if errno, ok := err.(syscall.Errno); ok && errno == syscall.ERANGE {
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p = make([]byte, len(p)*2) // this can't be ideal.
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continue // try again!
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}
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return nil, err
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}
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// realloc to correct size and repeat
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if n > len(p) {
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p = make([]byte, n)
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continue
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}
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return p[:n], nil
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buf = make([]byte, n)
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n, err = getFunc(path, attr, buf)
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}
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if err != nil {
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return nil, err
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}
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return buf[:n], nil
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}
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12
vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go
generated
vendored
12
vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go
generated
vendored
@ -23,7 +23,7 @@ import (
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"runtime"
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)
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var unsupported = errors.New("extended attributes unsupported on " + runtime.GOOS)
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var errUnsupported = errors.New("extended attributes unsupported on " + runtime.GOOS)
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// Listxattr calls syscall listxattr and reads all content
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// and returns a string array
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@ -33,17 +33,17 @@ func Listxattr(path string) ([]string, error) {
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// Removexattr calls syscall removexattr
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func Removexattr(path string, attr string) (err error) {
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return unsupported
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return errUnsupported
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}
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// Setxattr calls syscall setxattr
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func Setxattr(path string, attr string, data []byte, flags int) (err error) {
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return unsupported
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return errUnsupported
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}
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// Getxattr calls syscall getxattr
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func Getxattr(path, attr string) ([]byte, error) {
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return []byte{}, unsupported
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return []byte{}, errUnsupported
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}
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// LListxattr lists xattrs, not following symlinks
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@ -53,12 +53,12 @@ func LListxattr(path string) ([]string, error) {
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// LRemovexattr removes an xattr, not following symlinks
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func LRemovexattr(path string, attr string) (err error) {
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return unsupported
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return errUnsupported
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}
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// LSetxattr sets an xattr, not following symlinks
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func LSetxattr(path string, attr string, data []byte, flags int) (err error) {
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return unsupported
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return errUnsupported
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}
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// LGetxattr gets an xattr, not following symlinks
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