ports/net/libnet/files/patch-libnet_checksum.c
Dirk Meyer 481254d60d - fix UDP checksums in odd sized packets
PR:		165355
Submitted by:	Y.A.
Obtained from:	debian
2012-02-22 04:49:08 +00:00

23 lines
No EOL
471 B
C

--- src/libnet_checksum.c.orig Mon Mar 1 22:26:12 2004
+++ src/libnet_checksum.c Mon Aug 25 15:44:12 2008
@@ -42,8 +42,10 @@
libnet_in_cksum(u_int16_t *addr, int len)
{
int sum;
+ u_int16_t last_byte;
sum = 0;
+ last_byte = 0;
while (len > 1)
{
@@ -52,7 +54,8 @@
}
if (len == 1)
{
- sum += *(u_int16_t *)addr;
+ *(u_int8_t*)&last_byte = *(u_int8_t*)addr;
+ sum += last_byte;
}
return (sum);