1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
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(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
}
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
)
|
