device: Iphone 6s plus, os:IOS 10.1.1,output:error code:65,rason:no route to host. device: Iphone 7, os:IOS 10.1.1,output:error code:65,rason:no route to host. But I test in ios simulator, output:success I can’t see any obvious reason why this would fail. device: Iphone 6s p...
Before iphone upgrade to ios10.2, all going well, after upgrade can not connect. sendto returns -1 and errno is 1(EPERM). When I connect a NAT64 wifi, all going well again, why? Please help me! zaffixclosed this ascompletedJan 9, 2019 ...
intlwip_sendto(int s,constvoid*data,size_t size,int flags,conststruct sockaddr*to,socklen_t tolen){...sock=get_socket(s);if(!sock){return-1;}if(NETCONNTYPE_GROUP(netconn_type(sock->conn))==NETCONN_TCP){#ifLWIP_TCPreturnlwip_send(s,data,size,flags);#else/* LWIP_TCP */LWIP_U...
return tmp; skb->sk = NULL; /* to avoid changing sk->saddr */ skb->free = 1;//发送完后数据包立即释放,udp不提供超时重传 skb->localroute = sk->localroute|(rt&MSG_DONTROUTE);//指定路由类型 /* * Now build the IP and MAC header. */ buff = skb->data;//udp首部和有效负载 saddr...
send_sig(SIGPIPE, current, 1); return(-EPIPE); } if(sk->prot->sendto == NULL) return(-EOPNOTSUPP); if(sk->err) returninet_error(sk); /* We may need to bind the socket. */ //自动绑定一个本地端口号 if(inet_autobind(sk)!=0) ...
bind函数不是server端的专利,客户端也可以bind一个指定端口。只要在aockaddr_in中指定一个端口(比如4000端口)就可以.sockaddr_in结构关键的几个字段 sin_family = AF_INET；sin_addr.s_addr = INADDR_ANY；sin_port = htons(你要的端口)；...