[PATCH] packet.c: in_cksum(): fix checksumming for odd-sized IPv4 header

[Vitezslav Samel]

Commit "new ip checksum based on rfc1071 implementaion" introduced
a bug which incorrectly computes checksum in case of odd-sized
IPv4 header. This barely happens, so this remained unnoticed for
so long.

Signed-off-by: Vitezslav Samel 
---
 src/packet.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/packet.c b/src/packet.c
index 841a495..6df69b7 100644
--- a/src/packet.c
+++ b/src/packet.c
@@ -42,7 +42,7 @@ static int in_cksum(u_short * addr, int len)
    	len -= 2;
    }

-	if (len > 1)
+	if (len > 0)
    	sum += *(unsigned char *) addr;

while (sum >> 16)

[Nikola Pajkovsky]

Vitezslav Samel  writes:
> Commit "new ip checksum based on rfc1071 implementaion" introduced
> a bug which incorrectly computes checksum in case of odd-sized
> IPv4 header. This barely happens, so this remained unnoticed for
> so long.
> Signed-off-by: Vitezslav Samel
>
> src/packet.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)

applied.