peer_linux.go RawHistoryFolder

1//go:build linux
2
3package uidriver
4
5import (
6	"net"
7	"os"
8	"syscall"
9)
10
11func peerIsCurrentUser(conn *net.UnixConn) bool {
12	raw, err := conn.SyscallConn()
13	if err != nil {
14		return false
15	}
16	var credential *syscall.Ucred
17	var controlErr error
18	if err := raw.Control(func(fd uintptr) {
19		credential, controlErr = syscall.GetsockoptUcred(int(fd), syscall.SOL_SOCKET, syscall.SO_PEERCRED)
20	}); err != nil || controlErr != nil || credential == nil {
21		return false
22	}
23	return uint32(os.Geteuid()) == credential.Uid
24}