diff options
| -rw-r--r-- | sys/net/if_tun.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index 675995f..a9db860 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -431,9 +431,11 @@ tunioctl(dev, cmd, data, flag, p) break; case FIONREAD: s = splimp(); - if (tp->tun_if.if_snd.ifq_head) - *(int *)data = tp->tun_if.if_snd.ifq_head->m_len; - else + if (tp->tun_if.if_snd.ifq_head) { + struct mbuf *mb = tp->tun_if.if_snd.ifq_head; + for( *(int *)data = 0; mb != 0; mb = mb->m_next) + *(int *)data += mb->m_len; + } else *(int *)data = 0; splx(s); break; |
