func getUcred(fd int) (uint32, uint32, int32, error) {
cred, err := syscall.GetsockoptUcred(fd, syscall.SOL_SOCKET, syscall.SO_PEERCRED)
if err != nil {
return 0, 0, -1, err
}
return cred.Uid, cred.Gid, cred.Pid, nil
}
func getPid(conn *net.UnixConn) (int32, error) {
fd := extractUnderlyingFd(conn)
cred, err := syscall.GetsockoptUcred(fd, syscall.SOL_SOCKET, syscall.SO_PEERCRED)
if err != nil {
return -1, err
}
return cred.Pid, nil
}
// Return the uid/gid of the other side of a unix connection.
// This may have to be factored out into OS-specific syscalls.
func getpeereid(conn interface{}) (uid, gid string, err error) {
sock, ok := conn.(*net.UnixConn)
if !ok {
return "", "", errSocketConn
}
file, err := sock.File()
if err != nil {
return "", "", err
}
fd := int(file.Fd())
acct, err := syscall.GetsockoptUcred(fd, syscall.SOL_SOCKET, syscall.SO_PEERCRED)
file.Close()
if err != nil {
return "", "", err
}
uid = strconv.FormatUint(uint64(acct.Uid), 10)
gid = strconv.FormatUint(uint64(acct.Gid), 10)
return uid, gid, nil
}