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|
//go:build !plan9
// +build !plan9
package sftp
import (
"os"
"syscall"
)
const EBADF = syscall.EBADF
func wrapPathError(filepath string, err error) error {
if errno, ok := err.(syscall.Errno); 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.Errno) uint32 {
switch errno {
case 0:
return sshFxOk
case syscall.ENOENT:
return sshFxNoSuchFile
case syscall.EACCES, syscall.EPERM:
return sshFxPermissionDenied
}
return sshFxFailure
}
func translateSyscallError(err error) (uint32, bool) {
switch e := err.(type) {
case syscall.Errno:
return translateErrno(e), true
case *os.PathError:
debug("statusFromError,pathError: error is %T %#v", e.Err, e.Err)
if errno, ok := e.Err.(syscall.Errno); 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
}
if mode&syscall.S_ISUID != 0 {
fm |= os.ModeSetuid
}
if mode&syscall.S_ISGID != 0 {
fm |= os.ModeSetgid
}
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(mode & os.ModePerm)
switch mode & os.ModeType {
case os.ModeDevice | os.ModeCharDevice:
ret |= syscall.S_IFCHR
case os.ModeDevice:
ret |= syscall.S_IFBLK
case os.ModeDir:
ret |= syscall.S_IFDIR
case os.ModeNamedPipe:
ret |= syscall.S_IFIFO
case os.ModeSymlink:
ret |= syscall.S_IFLNK
case 0:
ret |= syscall.S_IFREG
case os.ModeSocket:
ret |= syscall.S_IFSOCK
}
if mode&os.ModeSetuid != 0 {
ret |= syscall.S_ISUID
}
if mode&os.ModeSetgid != 0 {
ret |= syscall.S_ISGID
}
if mode&os.ModeSticky != 0 {
ret |= syscall.S_ISVTX
}
return ret
}
const (
s_ISUID = syscall.S_ISUID
s_ISGID = syscall.S_ISGID
s_ISVTX = syscall.S_ISVTX
)
|
