This fixes a bug that would miss a hop after an ICMP packet too big message,
since it would continue increase the TTL without probing again.
---
tracepath.c | 6 ++++++
tracepath6.c | 6 ++++++
2 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/tracepath.c b/tracepath.c
index d035a1e..19b2c6b 100644
--- a/tracepath.c
+++ b/tracepath.c
@@ -352,8 +352,14 @@ main(int argc, char **argv)
exit(1);
}
+restart:
for (i=0; i<3; i++) {
+ int old_mtu;
+
+ old_mtu = mtu;
res = probe_ttl(fd, ttl);
+ if (mtu != old_mtu)
+ goto restart;
if (res == 0)
goto done;
if (res > 0)
diff --git a/tracepath6.c b/tracepath6.c
index a010218..65c4a4a 100644
--- a/tracepath6.c
+++ b/tracepath6.c
@@ -422,8 +422,14 @@ int main(int argc, char **argv)
exit(1);
}
+restart:
for (i=0; i<3; i++) {
+ int old_mtu;
+
+ old_mtu = mtu;
res = probe_ttl(fd, ttl);
+ if (mtu != old_mtu)
+ goto restart;
if (res == 0)
goto done;
if (res > 0)
--
1.5.0.2.gc260-dirty
-
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