diff options
Diffstat (limited to 'common/packet.c')
| -rw-r--r-- | common/packet.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/common/packet.c b/common/packet.c index 726d51e5..63b4ff8e 100644 --- a/common/packet.c +++ b/common/packet.c @@ -61,7 +61,7 @@ u_int32_t checksum (buf, nbytes, sum) /* Add carry. */ if (sum > 0xFFFF) sum -= 0xFFFF; - } + } /* If there's a single byte left over, checksum it, too. Network byte order is big-endian, so the remaining byte is the high byte. */ @@ -74,7 +74,7 @@ u_int32_t checksum (buf, nbytes, sum) if (sum > 0xFFFF) sum -= 0xFFFF; } - + return sum; } @@ -91,7 +91,7 @@ u_int32_t wrapsum (sum) #ifdef DEBUG_CHECKSUM_VERBOSE log_debug ("sum = %x", sum); #endif - + #ifdef DEBUG_CHECKSUM log_debug ("wrapsum returns %x", htons (sum)); #endif @@ -156,10 +156,10 @@ void assemble_udp_ip_header (interface, buf, bufix, ip.ip_sum = 0; ip.ip_src.s_addr = from; ip.ip_dst.s_addr = to; - + /* Checksum the IP header... */ ip.ip_sum = wrapsum (checksum ((unsigned char *)&ip, sizeof ip, 0)); - + /* Copy the ip header into the buffer... */ memcpy (&buf [*bufix], &ip, sizeof ip); *bufix += sizeof ip; @@ -181,7 +181,7 @@ void assemble_udp_ip_header (interface, buf, bufix, udp.uh_sum = wrapsum (checksum ((unsigned char *)&udp, sizeof udp, - checksum (data, len, + checksum (data, len, checksum ((unsigned char *) &ip.ip_src, 2 * sizeof ip.ip_src, |