diff options
Diffstat (limited to 'vendor/github.com/pkg/sftp/attrs.go')
| -rw-r--r-- | vendor/github.com/pkg/sftp/attrs.go | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/vendor/github.com/pkg/sftp/attrs.go b/vendor/github.com/pkg/sftp/attrs.go deleted file mode 100644 index 18412e33..00000000 --- a/vendor/github.com/pkg/sftp/attrs.go +++ /dev/null @@ -1,241 +0,0 @@ -package sftp - -// ssh_FXP_ATTRS support -// see http://tools.ietf.org/html/draft-ietf-secsh-filexfer-02#section-5 - -import ( - "os" - "syscall" - "time" -) - -const ( - ssh_FILEXFER_ATTR_SIZE = 0x00000001 - ssh_FILEXFER_ATTR_UIDGID = 0x00000002 - ssh_FILEXFER_ATTR_PERMISSIONS = 0x00000004 - ssh_FILEXFER_ATTR_ACMODTIME = 0x00000008 - ssh_FILEXFER_ATTR_EXTENDED = 0x80000000 -) - -// fileInfo is an artificial type designed to satisfy os.FileInfo. -type fileInfo struct { - name string - size int64 - mode os.FileMode - mtime time.Time - sys interface{} -} - -// Name returns the base name of the file. -func (fi *fileInfo) Name() string { return fi.name } - -// Size returns the length in bytes for regular files; system-dependent for others. -func (fi *fileInfo) Size() int64 { return fi.size } - -// Mode returns file mode bits. -func (fi *fileInfo) Mode() os.FileMode { return fi.mode } - -// ModTime returns the last modification time of the file. -func (fi *fileInfo) ModTime() time.Time { return fi.mtime } - -// IsDir returns true if the file is a directory. -func (fi *fileInfo) IsDir() bool { return fi.Mode().IsDir() } - -func (fi *fileInfo) Sys() interface{} { return fi.sys } - -// FileStat holds the original unmarshalled values from a call to READDIR or *STAT. -// It is exported for the purposes of accessing the raw values via os.FileInfo.Sys() -type FileStat struct { - Size uint64 - Mode uint32 - Mtime uint32 - Atime uint32 - UID uint32 - GID uint32 - Extended []StatExtended -} - -// StatExtended contains additional, extended information for a FileStat. -type StatExtended struct { - ExtType string - ExtData string -} - -func fileInfoFromStat(st *FileStat, name string) os.FileInfo { - fs := &fileInfo{ - name: name, - size: int64(st.Size), - mode: toFileMode(st.Mode), - mtime: time.Unix(int64(st.Mtime), 0), - sys: st, - } - return fs -} - -func fileStatFromInfo(fi os.FileInfo) (uint32, FileStat) { - mtime := fi.ModTime().Unix() - atime := mtime - var flags uint32 = ssh_FILEXFER_ATTR_SIZE | - ssh_FILEXFER_ATTR_PERMISSIONS | - ssh_FILEXFER_ATTR_ACMODTIME - - fileStat := FileStat{ - Size: uint64(fi.Size()), - Mode: fromFileMode(fi.Mode()), - Mtime: uint32(mtime), - Atime: uint32(atime), - } - - // os specific file stat decoding - fileStatFromInfoOs(fi, &flags, &fileStat) - - return flags, fileStat -} - -func unmarshalAttrs(b []byte) (*FileStat, []byte) { - flags, b := unmarshalUint32(b) - return getFileStat(flags, b) -} - -func getFileStat(flags uint32, b []byte) (*FileStat, []byte) { - var fs FileStat - if flags&ssh_FILEXFER_ATTR_SIZE == ssh_FILEXFER_ATTR_SIZE { - fs.Size, b = unmarshalUint64(b) - } - if flags&ssh_FILEXFER_ATTR_UIDGID == ssh_FILEXFER_ATTR_UIDGID { - fs.UID, b = unmarshalUint32(b) - } - if flags&ssh_FILEXFER_ATTR_UIDGID == ssh_FILEXFER_ATTR_UIDGID { - fs.GID, b = unmarshalUint32(b) - } - if flags&ssh_FILEXFER_ATTR_PERMISSIONS == ssh_FILEXFER_ATTR_PERMISSIONS { - fs.Mode, b = unmarshalUint32(b) - } - if flags&ssh_FILEXFER_ATTR_ACMODTIME == ssh_FILEXFER_ATTR_ACMODTIME { - fs.Atime, b = unmarshalUint32(b) - fs.Mtime, b = unmarshalUint32(b) - } - if flags&ssh_FILEXFER_ATTR_EXTENDED == ssh_FILEXFER_ATTR_EXTENDED { - var count uint32 - count, b = unmarshalUint32(b) - ext := make([]StatExtended, count) - for i := uint32(0); i < count; i++ { - var typ string - var data string - typ, b = unmarshalString(b) - data, b = unmarshalString(b) - ext[i] = StatExtended{typ, data} - } - fs.Extended = ext - } - return &fs, b -} - -func marshalFileInfo(b []byte, fi os.FileInfo) []byte { - // attributes variable struct, and also variable per protocol version - // spec version 3 attributes: - // uint32 flags - // uint64 size present only if flag SSH_FILEXFER_ATTR_SIZE - // uint32 uid present only if flag SSH_FILEXFER_ATTR_UIDGID - // uint32 gid present only if flag SSH_FILEXFER_ATTR_UIDGID - // uint32 permissions present only if flag SSH_FILEXFER_ATTR_PERMISSIONS - // uint32 atime present only if flag SSH_FILEXFER_ACMODTIME - // uint32 mtime present only if flag SSH_FILEXFER_ACMODTIME - // uint32 extended_count present only if flag SSH_FILEXFER_ATTR_EXTENDED - // string extended_type - // string extended_data - // ... more extended data (extended_type - extended_data pairs), - // so that number of pairs equals extended_count - - flags, fileStat := fileStatFromInfo(fi) - - b = marshalUint32(b, flags) - if flags&ssh_FILEXFER_ATTR_SIZE != 0 { - b = marshalUint64(b, fileStat.Size) - } - if flags&ssh_FILEXFER_ATTR_UIDGID != 0 { - b = marshalUint32(b, fileStat.UID) - b = marshalUint32(b, fileStat.GID) - } - if flags&ssh_FILEXFER_ATTR_PERMISSIONS != 0 { - b = marshalUint32(b, fileStat.Mode) - } - if flags&ssh_FILEXFER_ATTR_ACMODTIME != 0 { - b = marshalUint32(b, fileStat.Atime) - b = marshalUint32(b, fileStat.Mtime) - } - - return b -} - -// toFileMode converts sftp filemode bits to the os.FileMode specification -func toFileMode(mode uint32) os.FileMode { - var fm = os.FileMode(mode & 0777) - switch mode & syscall.S_IFMT { - case syscall.S_IFBLK: - fm |= os.ModeDevice - case syscall.S_IFCHR: - fm |= os.ModeDevice | os.ModeCharDevice - case syscall.S_IFDIR: - fm |= os.ModeDir - case syscall.S_IFIFO: - fm |= os.ModeNamedPipe - case syscall.S_IFLNK: - fm |= os.ModeSymlink - case syscall.S_IFREG: - // nothing to do - case syscall.S_IFSOCK: - fm |= os.ModeSocket - } - if mode&syscall.S_ISGID != 0 { - fm |= os.ModeSetgid - } - if mode&syscall.S_ISUID != 0 { - fm |= os.ModeSetuid - } - if mode&syscall.S_ISVTX != 0 { - fm |= os.ModeSticky - } - return fm -} - -// fromFileMode converts from the os.FileMode specification to sftp filemode bits -func fromFileMode(mode os.FileMode) uint32 { - ret := uint32(0) - - if mode&os.ModeDevice != 0 { - if mode&os.ModeCharDevice != 0 { - ret |= syscall.S_IFCHR - } else { - ret |= syscall.S_IFBLK - } - } - if mode&os.ModeDir != 0 { - ret |= syscall.S_IFDIR - } - if mode&os.ModeSymlink != 0 { - ret |= syscall.S_IFLNK - } - if mode&os.ModeNamedPipe != 0 { - ret |= syscall.S_IFIFO - } - if mode&os.ModeSetgid != 0 { - ret |= syscall.S_ISGID - } - if mode&os.ModeSetuid != 0 { - ret |= syscall.S_ISUID - } - if mode&os.ModeSticky != 0 { - ret |= syscall.S_ISVTX - } - if mode&os.ModeSocket != 0 { - ret |= syscall.S_IFSOCK - } - - if mode&os.ModeType == 0 { - ret |= syscall.S_IFREG - } - ret |= uint32(mode & os.ModePerm) - - return ret -} |