forked from mudler/yip
-
Notifications
You must be signed in to change notification settings - Fork 2
/
user.go
48 lines (43 loc) · 1.01 KB
/
user.go
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
package utils
import (
"errors"
"fmt"
osuser "os/user"
"strconv"
"strings"
)
// GetUserDataFromString retrieves uid and gid from a string. The string
// have to be in the "user:group" syntax, or just "user".
func GetUserDataFromString(s string) (int, int, error) {
user := s
var u, g string
if strings.Contains(s, ":") {
dat := strings.Split(user, ":")
us, err := osuser.Lookup(dat[0])
if err != nil {
return 0, 0, fmt.Errorf("failed looking up user %s", dat[0])
}
u = us.Uid
group, err := osuser.LookupGroup(dat[1])
if err != nil {
return 0, 0, fmt.Errorf("failed looking up group %s", dat[1])
}
g = group.Gid
} else {
us, err := osuser.Lookup(s)
if err != nil {
return 0, 0, fmt.Errorf("failed looking up user %s", s)
}
u = us.Uid
g = us.Gid
}
uid, err := strconv.Atoi(u)
if err != nil {
return 0, 0, errors.New("failed converting uid to int")
}
gid, err := strconv.Atoi(g)
if err != nil {
return 0, 0, errors.New("failed converting gid to int")
}
return uid, gid, nil
}