mirror of https://github.com/pkg/sftp.git
110 lines
2.3 KiB
Go
110 lines
2.3 KiB
Go
package sftp
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
var EBADF = syscall.NewError("fd out of range or not open")
|
|
|
|
func wrapPathError(filepath string, err error) error {
|
|
if errno, ok := err.(syscall.ErrorString); ok {
|
|
return &os.PathError{Path: filepath, Err: errno}
|
|
}
|
|
return err
|
|
}
|
|
|
|
// translateErrno translates a syscall error number to a SFTP error code.
|
|
func translateErrno(errno syscall.ErrorString) uint32 {
|
|
switch errno {
|
|
case "":
|
|
return sshFxOk
|
|
case syscall.ENOENT:
|
|
return sshFxNoSuchFile
|
|
case syscall.EPERM:
|
|
return sshFxPermissionDenied
|
|
}
|
|
|
|
return sshFxFailure
|
|
}
|
|
|
|
func translateSyscallError(err error) (uint32, bool) {
|
|
switch e := err.(type) {
|
|
case syscall.ErrorString:
|
|
return translateErrno(e), true
|
|
case *os.PathError:
|
|
debug("statusFromError,pathError: error is %T %#v", e.Err, e.Err)
|
|
if errno, ok := e.Err.(syscall.ErrorString); ok {
|
|
return translateErrno(errno), true
|
|
}
|
|
}
|
|
return 0, false
|
|
}
|
|
|
|
// isRegular returns true if the mode describes a regular file.
|
|
func isRegular(mode uint32) bool {
|
|
return mode&S_IFMT == syscall.S_IFREG
|
|
}
|
|
|
|
// toFileMode converts sftp filemode bits to the os.FileMode specification
|
|
func toFileMode(mode uint32) os.FileMode {
|
|
var fm = os.FileMode(mode & 0777)
|
|
switch mode & 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
|
|
}
|
|
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.ModeSocket != 0 {
|
|
ret |= syscall.S_IFSOCK
|
|
}
|
|
|
|
if mode&os.ModeType == 0 {
|
|
ret |= syscall.S_IFREG
|
|
}
|
|
ret |= uint32(mode & os.ModePerm)
|
|
|
|
return ret
|
|
}
|
|
|
|
// Plan 9 doesn't have setuid, setgid or sticky, but a Plan 9 client should
|
|
// be able to send these bits to a POSIX server.
|
|
const (
|
|
s_ISUID = 04000
|
|
s_ISGID = 02000
|
|
s_ISVTX = 01000
|
|
)
|