From fa7a0d17d98695332a9bd3c87a655a7eda730d8f Mon Sep 17 00:00:00 2001
From: Masaq- <tilt@techie.com>
Date: Fri, 22 Feb 2019 11:48:55 +0000
Subject: fix segmentation fault when network is unreachable
---
src/ptunnel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/ptunnel.c b/src/ptunnel.c
index 640df74..87dcc39 100644
--- a/src/ptunnel.c
+++ b/src/ptunnel.c
@@ -668,7 +668,7 @@ void* pt_proxy(void *args) {
cur->dst_ip, cur->dst_port, kProto_ack | cur->type_flag,
&cur->dest_addr, cur->next_remote_seq, &cur->send_first_ack, &cur->ping_seq, cur->window_size);
cur->xfer.icmp_ack_out++;
- if (cur->send_ring[idx].pkt_len > sizeof(icmp_echo_packet_t) && cur->send_ring[idx].pkt->type == 8) {
+ if (cur->send_ring[idx].pkt && cur->send_ring[idx].pkt->type == kICMP_echo_request) {
for (uint16_t e = 0; e < opts.empty_pings; e++) {
cur->send_ring[idx].pkt->seq = htons(cur->ping_seq);
cur->ping_seq++;
--
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