mirror of https://github.com/pkg/sftp.git
94 lines
2.1 KiB
Go
94 lines
2.1 KiB
Go
package sftp
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import (
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"os"
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sshfx "github.com/pkg/sftp/internal/encoding/ssh/filexfer"
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)
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// isRegular returns true if the mode describes a regular file.
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func isRegular(mode uint32) bool {
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return sshfx.FileMode(mode)&sshfx.ModeType == sshfx.ModeRegular
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}
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// toFileMode converts sftp filemode bits to the os.FileMode specification
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func toFileMode(mode uint32) os.FileMode {
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var fm = os.FileMode(mode & 0777)
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switch sshfx.FileMode(mode) & sshfx.ModeType {
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case sshfx.ModeDevice:
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fm |= os.ModeDevice
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case sshfx.ModeCharDevice:
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fm |= os.ModeDevice | os.ModeCharDevice
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case sshfx.ModeDir:
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fm |= os.ModeDir
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case sshfx.ModeNamedPipe:
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fm |= os.ModeNamedPipe
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case sshfx.ModeSymlink:
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fm |= os.ModeSymlink
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case sshfx.ModeRegular:
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// nothing to do
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case sshfx.ModeSocket:
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fm |= os.ModeSocket
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}
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if sshfx.FileMode(mode)&sshfx.ModeSetUID != 0 {
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fm |= os.ModeSetuid
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}
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if sshfx.FileMode(mode)&sshfx.ModeSetGID != 0 {
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fm |= os.ModeSetgid
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}
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if sshfx.FileMode(mode)&sshfx.ModeSticky != 0 {
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fm |= os.ModeSticky
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}
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return fm
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}
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// fromFileMode converts from the os.FileMode specification to sftp filemode bits
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func fromFileMode(mode os.FileMode) uint32 {
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ret := sshfx.FileMode(mode & os.ModePerm)
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switch mode & os.ModeType {
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case os.ModeDevice | os.ModeCharDevice:
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ret |= sshfx.ModeCharDevice
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case os.ModeDevice:
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ret |= sshfx.ModeDevice
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case os.ModeDir:
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ret |= sshfx.ModeDir
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case os.ModeNamedPipe:
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ret |= sshfx.ModeNamedPipe
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case os.ModeSymlink:
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ret |= sshfx.ModeSymlink
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case 0:
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ret |= sshfx.ModeRegular
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case os.ModeSocket:
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ret |= sshfx.ModeSocket
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}
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if mode&os.ModeSetuid != 0 {
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ret |= sshfx.ModeSetUID
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}
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if mode&os.ModeSetgid != 0 {
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ret |= sshfx.ModeSetGID
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}
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if mode&os.ModeSticky != 0 {
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ret |= sshfx.ModeSticky
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}
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return uint32(ret)
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}
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const (
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s_ISUID = uint32(sshfx.ModeSetUID)
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s_ISGID = uint32(sshfx.ModeSetGID)
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s_ISVTX = uint32(sshfx.ModeSticky)
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)
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// Legacy export:
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//
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// Go defines S_IFMT on windows, plan9 and js/wasm as 0x1f000 instead of
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// 0xf000. None of the the other S_IFxyz values include the "1" (in 0x1f000)
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// which prevents them from matching the bitmask.
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const S_IFMT = uint32(sshfx.ModeType)
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