mirror of https://github.com/pkg/sftp.git
98 lines
2.4 KiB
Go
98 lines
2.4 KiB
Go
package sftp
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// ssh_FXP_ATTRS support
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// see http://tools.ietf.org/html/draft-ietf-secsh-filexfer-02#section-5
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import (
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"os"
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"time"
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)
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const (
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sshFileXferAttrSize = 0x00000001
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sshFileXferAttrUIDGID = 0x00000002
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sshFileXferAttrPermissions = 0x00000004
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sshFileXferAttrACmodTime = 0x00000008
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sshFileXferAttrExtended = 0x80000000
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sshFileXferAttrAll = sshFileXferAttrSize | sshFileXferAttrUIDGID | sshFileXferAttrPermissions |
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sshFileXferAttrACmodTime | sshFileXferAttrExtended
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)
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// fileInfo is an artificial type designed to satisfy os.FileInfo.
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type fileInfo struct {
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name string
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size int64
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mode os.FileMode
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mtime time.Time
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sys interface{}
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}
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// Name returns the base name of the file.
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func (fi *fileInfo) Name() string { return fi.name }
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// Size returns the length in bytes for regular files; system-dependent for others.
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func (fi *fileInfo) Size() int64 { return fi.size }
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// Mode returns file mode bits.
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func (fi *fileInfo) Mode() os.FileMode { return fi.mode }
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// ModTime returns the last modification time of the file.
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func (fi *fileInfo) ModTime() time.Time { return fi.mtime }
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// IsDir returns true if the file is a directory.
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func (fi *fileInfo) IsDir() bool { return fi.Mode().IsDir() }
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func (fi *fileInfo) Sys() interface{} { return fi.sys }
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// FileStat holds the original unmarshalled values from a call to READDIR or
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// *STAT. It is exported for the purposes of accessing the raw values via
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// os.FileInfo.Sys(). It is also used server side to store the unmarshalled
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// values for SetStat.
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type FileStat struct {
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Size uint64
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Mode uint32
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Mtime uint32
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Atime uint32
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UID uint32
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GID uint32
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Extended []StatExtended
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}
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// StatExtended contains additional, extended information for a FileStat.
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type StatExtended struct {
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ExtType string
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ExtData string
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}
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func fileInfoFromStat(st *FileStat, name string) os.FileInfo {
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fs := &fileInfo{
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name: name,
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size: int64(st.Size),
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mode: toFileMode(st.Mode),
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mtime: time.Unix(int64(st.Mtime), 0),
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sys: st,
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}
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return fs
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}
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func fileStatFromInfo(fi os.FileInfo) (uint32, FileStat) {
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mtime := fi.ModTime().Unix()
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atime := mtime
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var flags uint32 = sshFileXferAttrSize |
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sshFileXferAttrPermissions |
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sshFileXferAttrACmodTime
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fileStat := FileStat{
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Size: uint64(fi.Size()),
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Mode: fromFileMode(fi.Mode()),
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Mtime: uint32(mtime),
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Atime: uint32(atime),
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}
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// os specific file stat decoding
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fileStatFromInfoOs(fi, &flags, &fileStat)
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return flags, fileStat
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}
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