diff options
Diffstat (limited to 'nuttx/net/uip/uip-udpsend.c')
| -rw-r--r-- | nuttx/net/uip/uip-udpsend.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/nuttx/net/uip/uip-udpsend.c b/nuttx/net/uip/uip-udpsend.c index 8f77f78a2..8936c64bd 100644 --- a/nuttx/net/uip/uip-udpsend.c +++ b/nuttx/net/uip/uip-udpsend.c @@ -95,7 +95,7 @@ void uip_udpsend(struct uip_driver_s *dev, struct uip_udp_conn *conn) { - if (dev->d_sndlen == 0) + if (dev->d_sndlen > 0) { /* The total lenth to send is the size of the application data plus * the IP and UDP headers (and, eventually, the ethernet header) @@ -131,8 +131,8 @@ void uip_udpsend(struct uip_driver_s *dev, struct uip_udp_conn *conn) UDPBUF->ipid[1] = g_ipid & 0xff; UDPBUF->ipoffset[0] = 0; UDPBUF->ipoffset[1] = 0; - UDPBUF->ttl = conn->ttl; - UDPBUF->proto = UIP_PROTO_UDP; + UDPBUF->ttl = conn->ttl; + UDPBUF->proto = UIP_PROTO_UDP; /* Calculate IP checksum. */ @@ -146,20 +146,21 @@ void uip_udpsend(struct uip_driver_s *dev, struct uip_udp_conn *conn) /* Initialize the UDP header */ - UDPBUF->srcport = conn->lport; - UDPBUF->destport = conn->rport; - UDPBUF->udplen = HTONS(dev->d_sndlen + UIP_UDPH_LEN); + UDPBUF->srcport = conn->lport; + UDPBUF->destport = conn->rport; + UDPBUF->udplen = HTONS(dev->d_sndlen + UIP_UDPH_LEN); #ifdef CONFIG_NET_UDP_CHECKSUMS /* Calculate UDP checksum. */ - UDPBUF->udpchksum = ~(uip_udpchksum(dev)); + UDPBUF->udpchksum = 0; + UDPBUF->udpchksum = ~(uip_udpchksum(dev)); if (UDPBUF->udpchksum == 0) { UDPBUF->udpchksum = 0xffff; } #else - UDPBUF->udpchksum = 0; + UDPBUF->udpchksum = 0; #endif vdbg("Outgoing UDP packet length: %d (%d)\n", |