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
|
//go:build linux
package proc
import (
"os"
"strconv"
"strings"
"syscall"
)
func readUser(pid int) string {
path := "/proc/" + strconv.Itoa(pid)
info, err := os.Stat(path)
if err != nil {
return "unknown"
}
stat, ok := info.Sys().(*syscall.Stat_t)
if !ok {
return "unknown"
}
uid := int(stat.Uid)
if uid == 0 {
return "root"
}
// Try to resolve username from /etc/passwd
uidStr := strconv.Itoa(uid)
passwd, err := os.ReadFile("/etc/passwd")
if err == nil {
for line := range strings.Lines(string(passwd)) {
fields := strings.Split(line, ":")
if len(fields) > 2 && fields[2] == uidStr {
return fields[0]
}
}
}
return uidStr
}
|
