networking: consolidate the IP checksum code. -129 bytes.

[platform/upstream/busybox.git] / networking / udhcp / dhcpc.c

diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 4d755e6..3be09f4 100644 (file)
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -739,7 +739,7 @@ static NOINLINE int udhcp_recv_raw_packet(struct dhcp_packet *dhcp_pkt, int fd)
        /* verify IP checksum */
        check = packet.ip.check;
        packet.ip.check = 0;
-       if (check != udhcp_checksum(&packet.ip, sizeof(packet.ip))) {
+       if (check != inet_cksum((uint16_t *)&packet.ip, sizeof(packet.ip))) {
                log1("Bad IP header checksum, ignoring");
                return -2;
        }
@@ -750,7 +750,7 @@ static NOINLINE int udhcp_recv_raw_packet(struct dhcp_packet *dhcp_pkt, int fd)
        packet.ip.tot_len = packet.udp.len; /* yes, this is needed */
        check = packet.udp.check;
        packet.udp.check = 0;
-       if (check && check != udhcp_checksum(&packet, bytes)) {
+       if (check && check != inet_cksum((uint16_t *)&packet, bytes)) {
                log1("Packet with bad UDP checksum received, ignoring");
                return -2;
        }