104 lines
2.3 KiB
Go
104 lines
2.3 KiB
Go
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package sftp
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import (
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"os"
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"syscall"
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)
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var EBADF = syscall.NewError("fd out of range or not open")
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func wrapPathError(filepath string, err error) error {
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if errno, ok := err.(syscall.ErrorString); ok {
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return &os.PathError{Path: filepath, Err: errno}
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}
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return err
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}
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// translateErrno translates a syscall error number to a SFTP error code.
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func translateErrno(errno syscall.ErrorString) uint32 {
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switch errno {
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case "":
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return sshFxOk
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case syscall.ENOENT:
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return sshFxNoSuchFile
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case syscall.EPERM:
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return sshFxPermissionDenied
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}
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return sshFxFailure
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}
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func translateSyscallError(err error) (uint32, bool) {
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switch e := err.(type) {
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case syscall.ErrorString:
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return translateErrno(e), true
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case *os.PathError:
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debug("statusFromError,pathError: error is %T %#v", e.Err, e.Err)
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if errno, ok := e.Err.(syscall.ErrorString); ok {
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return translateErrno(errno), true
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}
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}
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return 0, false
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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 mode&S_IFMT == syscall.S_IFREG
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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 mode & S_IFMT {
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case syscall.S_IFBLK:
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fm |= os.ModeDevice
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case syscall.S_IFCHR:
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fm |= os.ModeDevice | os.ModeCharDevice
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case syscall.S_IFDIR:
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fm |= os.ModeDir
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case syscall.S_IFIFO:
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fm |= os.ModeNamedPipe
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case syscall.S_IFLNK:
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fm |= os.ModeSymlink
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case syscall.S_IFREG:
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// nothing to do
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case syscall.S_IFSOCK:
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fm |= os.ModeSocket
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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 := uint32(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 |= syscall.S_IFCHR
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case os.ModeDevice:
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ret |= syscall.S_IFBLK
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case os.ModeDir:
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ret |= syscall.S_IFDIR
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case os.ModeNamedPipe:
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ret |= syscall.S_IFIFO
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case os.ModeSymlink:
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ret |= syscall.S_IFLNK
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case 0:
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ret |= syscall.S_IFREG
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case os.ModeSocket:
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ret |= syscall.S_IFSOCK
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}
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return ret
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}
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// Plan 9 doesn't have setuid, setgid or sticky, but a Plan 9 client should
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// be able to send these bits to a POSIX server.
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const (
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s_ISUID = 04000
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s_ISGID = 02000
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s_ISVTX = 01000
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)
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