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package sftp
import (
"os"
sshfx "github.com/pkg/sftp/internal/encoding/ssh/filexfer"
)
// isRegular returns true if the mode describes a regular file.
func isRegular(mode uint32) bool {
return sshfx.FileMode(mode)&sshfx.ModeType == sshfx.ModeRegular
}
// toFileMode converts sftp filemode bits to the os.FileMode specification
func toFileMode(mode uint32) os.FileMode {
var fm = os.FileMode(mode & 0777)
switch sshfx.FileMode(mode) & sshfx.ModeType {
case sshfx.ModeDevice:
fm |= os.ModeDevice
case sshfx.ModeCharDevice:
fm |= os.ModeDevice | os.ModeCharDevice
case sshfx.ModeDir:
fm |= os.ModeDir
case sshfx.ModeNamedPipe:
fm |= os.ModeNamedPipe
case sshfx.ModeSymlink:
fm |= os.ModeSymlink
case sshfx.ModeRegular:
// nothing to do
case sshfx.ModeSocket:
fm |= os.ModeSocket
}
if sshfx.FileMode(mode)&sshfx.ModeSetUID != 0 {
fm |= os.ModeSetuid
}
if sshfx.FileMode(mode)&sshfx.ModeSetGID != 0 {
fm |= os.ModeSetgid
}
if sshfx.FileMode(mode)&sshfx.ModeSticky != 0 {
fm |= os.ModeSticky
}
return fm
}
// fromFileMode converts from the os.FileMode specification to sftp filemode bits
func fromFileMode(mode os.FileMode) uint32 {
ret := sshfx.FileMode(mode & os.ModePerm)
switch mode & os.ModeType {
case os.ModeDevice | os.ModeCharDevice:
ret |= sshfx.ModeCharDevice
case os.ModeDevice:
ret |= sshfx.ModeDevice
case os.ModeDir:
ret |= sshfx.ModeDir
case os.ModeNamedPipe:
ret |= sshfx.ModeNamedPipe
case os.ModeSymlink:
ret |= sshfx.ModeSymlink
case 0:
ret |= sshfx.ModeRegular
case os.ModeSocket:
ret |= sshfx.ModeSocket
}
if mode&os.ModeSetuid != 0 {
ret |= sshfx.ModeSetUID
}
if mode&os.ModeSetgid != 0 {
ret |= sshfx.ModeSetGID
}
if mode&os.ModeSticky != 0 {
ret |= sshfx.ModeSticky
}
return uint32(ret)
}
const (
s_ISUID = uint32(sshfx.ModeSetUID)
s_ISGID = uint32(sshfx.ModeSetGID)
s_ISVTX = uint32(sshfx.ModeSticky)
)
// S_IFMT is a legacy export, and was brought in to support GOOS environments whose sysconfig.S_IFMT may be different from the value used internally by SFTP standards.
// There should be no reason why you need to import it, or use it, but unexporting it could cause code to break in a way that cannot be readily fixed.
// As such, we continue to export this value as the value used in the SFTP standard.
//
// Deprecated: Remove use of this value, and avoid any future use as well.
// There is no alternative provided, you should never need to access this value.
const S_IFMT = uint32(sshfx.ModeType)
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