diff --git a/vendor.conf b/vendor.conf index 361a196351..7f4a62a9da 100755 --- a/vendor.conf +++ b/vendor.conf @@ -4,7 +4,7 @@ github.com/Azure/go-ansiterm d6e3b3328b783f23731bc4d05887 github.com/beorn7/perks 37c8de3658fcb183f997c4e13e8337516ab753e6 # v1.0.1 github.com/containerd/console 8375c3424e4d7b114e8a90a4a40c8e1b40d1d4e6 # v1.0.0 github.com/containerd/containerd c80284d4b5291a351bb471bcdabb5c1d95e7a583 # master / v1.4.0-dev -github.com/containerd/continuity 26c1120b8d4107d2471b93ad78ef7ce1fc84c4c4 +github.com/containerd/continuity efbc4488d8fe1bdc16bde3b2d2990d9b3a899165 github.com/containerd/cgroups 44306b6a1d46985d916b48b4199f93a378af314f github.com/coreos/etcd d57e8b8d97adfc4a6c224fe116714bf1a1f3beb9 # v3.3.12 github.com/cpuguy83/go-md2man/v2 f79a8a8ca69da163eee19ab442bedad7a35bba5a # v2.0.0 diff --git a/vendor/github.com/containerd/continuity/fs/path.go b/vendor/github.com/containerd/continuity/fs/path.go index 8863caa9df..c26be79898 100644 --- a/vendor/github.com/containerd/continuity/fs/path.go +++ b/vendor/github.com/containerd/continuity/fs/path.go @@ -117,15 +117,13 @@ func sameFile(f1, f2 *currentPath) (bool, error) { // If the timestamp may have been truncated in both of the // files, check content of file to determine difference if t1.Nanosecond() == 0 && t2.Nanosecond() == 0 { - var eq bool if (f1.f.Mode() & os.ModeSymlink) == os.ModeSymlink { - eq, err = compareSymlinkTarget(f1.fullPath, f2.fullPath) - } else if f1.f.Size() > 0 { - eq, err = compareFileContent(f1.fullPath, f2.fullPath) + return compareSymlinkTarget(f1.fullPath, f2.fullPath) } - if err != nil || !eq { - return eq, err + if f1.f.Size() == 0 { // if file sizes are zero length, the files are the same by definition + return true, nil } + return compareFileContent(f1.fullPath, f2.fullPath) } else if t1.Nanosecond() != t2.Nanosecond() { return false, nil } diff --git a/vendor/github.com/containerd/continuity/go.mod b/vendor/github.com/containerd/continuity/go.mod index 86a7f148cb..75a061aaac 100644 --- a/vendor/github.com/containerd/continuity/go.mod +++ b/vendor/github.com/containerd/continuity/go.mod @@ -1,6 +1,6 @@ module github.com/containerd/continuity -go 1.11 +go 1.13 require ( bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898 diff --git a/vendor/github.com/containerd/continuity/syscallx/syscall_unix.go b/vendor/github.com/containerd/continuity/syscallx/syscall_unix.go deleted file mode 100644 index 0bfa6a0409..0000000000 --- a/vendor/github.com/containerd/continuity/syscallx/syscall_unix.go +++ /dev/null @@ -1,26 +0,0 @@ -// +build !windows - -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package syscallx - -import "syscall" - -// Readlink returns the destination of the named symbolic link. -func Readlink(path string, buf []byte) (n int, err error) { - return syscall.Readlink(path, buf) -} diff --git a/vendor/github.com/containerd/continuity/syscallx/syscall_windows.go b/vendor/github.com/containerd/continuity/syscallx/syscall_windows.go deleted file mode 100644 index 2ba8149905..0000000000 --- a/vendor/github.com/containerd/continuity/syscallx/syscall_windows.go +++ /dev/null @@ -1,112 +0,0 @@ -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package syscallx - -import ( - "syscall" - "unsafe" -) - -type reparseDataBuffer struct { - ReparseTag uint32 - ReparseDataLength uint16 - Reserved uint16 - - // GenericReparseBuffer - reparseBuffer byte -} - -type mountPointReparseBuffer struct { - SubstituteNameOffset uint16 - SubstituteNameLength uint16 - PrintNameOffset uint16 - PrintNameLength uint16 - PathBuffer [1]uint16 -} - -type symbolicLinkReparseBuffer struct { - SubstituteNameOffset uint16 - SubstituteNameLength uint16 - PrintNameOffset uint16 - PrintNameLength uint16 - Flags uint32 - PathBuffer [1]uint16 -} - -const ( - _IO_REPARSE_TAG_MOUNT_POINT = 0xA0000003 - _SYMLINK_FLAG_RELATIVE = 1 -) - -// Readlink returns the destination of the named symbolic link. -func Readlink(path string, buf []byte) (n int, err error) { - fd, err := syscall.CreateFile(syscall.StringToUTF16Ptr(path), syscall.GENERIC_READ, 0, nil, syscall.OPEN_EXISTING, - syscall.FILE_FLAG_OPEN_REPARSE_POINT|syscall.FILE_FLAG_BACKUP_SEMANTICS, 0) - if err != nil { - return -1, err - } - defer syscall.CloseHandle(fd) - - rdbbuf := make([]byte, syscall.MAXIMUM_REPARSE_DATA_BUFFER_SIZE) - var bytesReturned uint32 - err = syscall.DeviceIoControl(fd, syscall.FSCTL_GET_REPARSE_POINT, nil, 0, &rdbbuf[0], uint32(len(rdbbuf)), &bytesReturned, nil) - if err != nil { - return -1, err - } - - rdb := (*reparseDataBuffer)(unsafe.Pointer(&rdbbuf[0])) - var s string - switch rdb.ReparseTag { - case syscall.IO_REPARSE_TAG_SYMLINK: - data := (*symbolicLinkReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) - p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) - s = syscall.UTF16ToString(p[data.SubstituteNameOffset/2 : (data.SubstituteNameOffset+data.SubstituteNameLength)/2]) - if data.Flags&_SYMLINK_FLAG_RELATIVE == 0 { - if len(s) >= 4 && s[:4] == `\??\` { - s = s[4:] - switch { - case len(s) >= 2 && s[1] == ':': // \??\C:\foo\bar - // do nothing - case len(s) >= 4 && s[:4] == `UNC\`: // \??\UNC\foo\bar - s = `\\` + s[4:] - default: - // unexpected; do nothing - } - } else { - // unexpected; do nothing - } - } - case _IO_REPARSE_TAG_MOUNT_POINT: - data := (*mountPointReparseBuffer)(unsafe.Pointer(&rdb.reparseBuffer)) - p := (*[0xffff]uint16)(unsafe.Pointer(&data.PathBuffer[0])) - s = syscall.UTF16ToString(p[data.SubstituteNameOffset/2 : (data.SubstituteNameOffset+data.SubstituteNameLength)/2]) - if len(s) >= 4 && s[:4] == `\??\` { // \??\C:\foo\bar - if len(s) < 48 || s[:11] != `\??\Volume{` { - s = s[4:] - } - } else { - // unexpected; do nothing - } - default: - // the path is not a symlink or junction but another type of reparse - // point - return -1, syscall.ENOENT - } - n = copy(buf, []byte(s)) - - return n, nil -} diff --git a/vendor/github.com/containerd/continuity/sysx/file_posix.go b/vendor/github.com/containerd/continuity/sysx/file_posix.go deleted file mode 100644 index e28f3a1b57..0000000000 --- a/vendor/github.com/containerd/continuity/sysx/file_posix.go +++ /dev/null @@ -1,128 +0,0 @@ -/* - Copyright The containerd Authors. - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. -*/ - -package sysx - -import ( - "os" - "path/filepath" - - "github.com/containerd/continuity/syscallx" -) - -// Readlink returns the destination of the named symbolic link. -// If there is an error, it will be of type *PathError. -func Readlink(name string) (string, error) { - for len := 128; ; len *= 2 { - b := make([]byte, len) - n, e := fixCount(syscallx.Readlink(fixLongPath(name), b)) - if e != nil { - return "", &os.PathError{Op: "readlink", Path: name, Err: e} - } - if n < len { - return string(b[0:n]), nil - } - } -} - -// Many functions in package syscall return a count of -1 instead of 0. -// Using fixCount(call()) instead of call() corrects the count. -func fixCount(n int, err error) (int, error) { - if n < 0 { - n = 0 - } - return n, err -} - -// fixLongPath returns the extended-length (\\?\-prefixed) form of -// path when needed, in order to avoid the default 260 character file -// path limit imposed by Windows. If path is not easily converted to -// the extended-length form (for example, if path is a relative path -// or contains .. elements), or is short enough, fixLongPath returns -// path unmodified. -// -// See https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx#maxpath -func fixLongPath(path string) string { - // Do nothing (and don't allocate) if the path is "short". - // Empirically (at least on the Windows Server 2013 builder), - // the kernel is arbitrarily okay with < 248 bytes. That - // matches what the docs above say: - // "When using an API to create a directory, the specified - // path cannot be so long that you cannot append an 8.3 file - // name (that is, the directory name cannot exceed MAX_PATH - // minus 12)." Since MAX_PATH is 260, 260 - 12 = 248. - // - // The MSDN docs appear to say that a normal path that is 248 bytes long - // will work; empirically the path must be less then 248 bytes long. - if len(path) < 248 { - // Don't fix. (This is how Go 1.7 and earlier worked, - // not automatically generating the \\?\ form) - return path - } - - // The extended form begins with \\?\, as in - // \\?\c:\windows\foo.txt or \\?\UNC\server\share\foo.txt. - // The extended form disables evaluation of . and .. path - // elements and disables the interpretation of / as equivalent - // to \. The conversion here rewrites / to \ and elides - // . elements as well as trailing or duplicate separators. For - // simplicity it avoids the conversion entirely for relative - // paths or paths containing .. elements. For now, - // \\server\share paths are not converted to - // \\?\UNC\server\share paths because the rules for doing so - // are less well-specified. - if len(path) >= 2 && path[:2] == `\\` { - // Don't canonicalize UNC paths. - return path - } - if !filepath.IsAbs(path) { - // Relative path - return path - } - - const prefix = `\\?` - - pathbuf := make([]byte, len(prefix)+len(path)+len(`\`)) - copy(pathbuf, prefix) - n := len(path) - r, w := 0, len(prefix) - for r < n { - switch { - case os.IsPathSeparator(path[r]): - // empty block - r++ - case path[r] == '.' && (r+1 == n || os.IsPathSeparator(path[r+1])): - // /./ - r++ - case r+1 < n && path[r] == '.' && path[r+1] == '.' && (r+2 == n || os.IsPathSeparator(path[r+2])): - // /../ is currently unhandled - return path - default: - pathbuf[w] = '\\' - w++ - for ; r < n && !os.IsPathSeparator(path[r]); r++ { - pathbuf[w] = path[r] - w++ - } - } - } - // A drive's root directory needs a trailing \ - if w == len(`\\?\c:`) { - pathbuf[w] = '\\' - w++ - } - return string(pathbuf[:w]) -} diff --git a/vendor/github.com/containerd/continuity/sysx/xattr.go b/vendor/github.com/containerd/continuity/sysx/xattr.go index 9e4326dcfe..db6fe70fe9 100644 --- a/vendor/github.com/containerd/continuity/sysx/xattr.go +++ b/vendor/github.com/containerd/continuity/sysx/xattr.go @@ -20,7 +20,6 @@ package sysx import ( "bytes" - "syscall" "golang.org/x/sys/unix" ) @@ -66,60 +65,53 @@ func LGetxattr(path, attr string) ([]byte, error) { return getxattrAll(path, attr, unix.Lgetxattr) } -const defaultXattrBufferSize = 5 +const defaultXattrBufferSize = 128 type listxattrFunc func(path string, dest []byte) (int, error) func listxattrAll(path string, listFunc listxattrFunc) ([]string, error) { - var p []byte // nil on first execution - - for { - n, err := listFunc(path, p) // first call gets buffer size. + buf := make([]byte, defaultXattrBufferSize) + n, err := listFunc(path, buf) + for err == unix.ERANGE { + // Buffer too small, use zero-sized buffer to get the actual size + n, err = listFunc(path, []byte{}) if err != nil { return nil, err } - - if n > len(p) { - p = make([]byte, n) - continue - } - - p = p[:n] - - ps := bytes.Split(bytes.TrimSuffix(p, []byte{0}), []byte{0}) - var entries []string - for _, p := range ps { - s := string(p) - if s != "" { - entries = append(entries, s) - } - } - - return entries, nil + buf = make([]byte, n) + n, err = listFunc(path, buf) } + if err != nil { + return nil, err + } + + ps := bytes.Split(bytes.TrimSuffix(buf[:n], []byte{0}), []byte{0}) + var entries []string + for _, p := range ps { + if len(p) > 0 { + entries = append(entries, string(p)) + } + } + + return entries, nil } type getxattrFunc func(string, string, []byte) (int, error) func getxattrAll(path, attr string, getFunc getxattrFunc) ([]byte, error) { - p := make([]byte, defaultXattrBufferSize) - for { - n, err := getFunc(path, attr, p) + buf := make([]byte, defaultXattrBufferSize) + n, err := getFunc(path, attr, buf) + for err == unix.ERANGE { + // Buffer too small, use zero-sized buffer to get the actual size + n, err = getFunc(path, attr, []byte{}) if err != nil { - if errno, ok := err.(syscall.Errno); ok && errno == syscall.ERANGE { - p = make([]byte, len(p)*2) // this can't be ideal. - continue // try again! - } - return nil, err } - - // realloc to correct size and repeat - if n > len(p) { - p = make([]byte, n) - continue - } - - return p[:n], nil + buf = make([]byte, n) + n, err = getFunc(path, attr, buf) } + if err != nil { + return nil, err + } + return buf[:n], nil } diff --git a/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go b/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go index c9ef3a1d25..f8fa8c63fb 100644 --- a/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go +++ b/vendor/github.com/containerd/continuity/sysx/xattr_unsupported.go @@ -23,7 +23,7 @@ import ( "runtime" ) -var unsupported = errors.New("extended attributes unsupported on " + runtime.GOOS) +var errUnsupported = errors.New("extended attributes unsupported on " + runtime.GOOS) // Listxattr calls syscall listxattr and reads all content // and returns a string array @@ -33,17 +33,17 @@ func Listxattr(path string) ([]string, error) { // Removexattr calls syscall removexattr func Removexattr(path string, attr string) (err error) { - return unsupported + return errUnsupported } // Setxattr calls syscall setxattr func Setxattr(path string, attr string, data []byte, flags int) (err error) { - return unsupported + return errUnsupported } // Getxattr calls syscall getxattr func Getxattr(path, attr string) ([]byte, error) { - return []byte{}, unsupported + return []byte{}, errUnsupported } // LListxattr lists xattrs, not following symlinks @@ -53,12 +53,12 @@ func LListxattr(path string) ([]string, error) { // LRemovexattr removes an xattr, not following symlinks func LRemovexattr(path string, attr string) (err error) { - return unsupported + return errUnsupported } // LSetxattr sets an xattr, not following symlinks func LSetxattr(path string, attr string, data []byte, flags int) (err error) { - return unsupported + return errUnsupported } // LGetxattr gets an xattr, not following symlinks