Client程序从stdin读取数据并通过网络发送到Server程序,Server程序在收到数据后直接再发送回Client程序,Client程序收到Server发回的数据后再从stdout输出。 三、UDP Server程序 1、编写UDP Server程序的步骤 (1)使用socket()来建立一个UDP socket,第二个参数为SOCK_DGRAM。 (2)初始化sockaddr_in结构的变量,并赋值。s...
1、unsigned short int htons(unsigned short int hostshort);将参数指定的16位hostshort转换成网络字符顺序。 2、int inet_aton(const char * cp,struct in_addr *inp);将参数cp所指的网络地址字符串转换成网络使用的二进制的数字, 然后存于参数inp所指的in_addr结构中。
client_num = -1; signal(SIGCHLD,SIG_IGN); /* socket */ sock_fd = socket(AF_INET, SOCK_STREAM, 0);//AF_INET:IPV4;SOCK_STREAM:TCP if (-1 == sock_fd) { fprintf(stderr,"socket error:%s\n\a", strerror(errno)); exit(1); } /* set server sockaddr_in */ memset(&server_...
999, 0, (struct sockaddr *)&server_addr, &addr_len); if (recv_len <= 0) { fprintf(stderr, "recvfrom error:%s\n\a", strerror(errno)); close(sock_fd); exit(1); } else { recv_buf[recv_len] = '\0'; printf("Get msg from client%d: %s\n", client_num, recv_buf); } ...
Simple cross-platform client/server program forwarding UDP datagrams through a TCP connection (aka tunnel). The client joins a multicast group and forwards the received datagrams to the server, which in turns multicasts them on its own subnet. Designed with simplicity in mind Tested on OSX 10.1...
SSL Server certificate SSL Client certificate Diffie-Hellman key exchange Features Cross platform (Linux, MacOS, Windows) Asynchronous communication Supported transport protocols: TCP, SSL, UDP, UDP multicast, Unix Domain Socket Supported Web protocols: HTTP, HTTPS, WebSocket, WebSocket secure Supported ...
5269/tcp XMPP/Jabber - server connection 5351/tcp,udp NAT Port Mapping Protocol - client-requested configuration for inbound connections through network address translators 5353/udp mDNS - multicastDNS 5402/tcp,udp StarBurst AutoCast MFTP 5405/tcp,udp NetSupport 5421/tcp,udp Net Support 2 5432/tcp...
XMPP/Jabber - server connection 5351/tcp,udp NAT Port Mapping Protocol - client-requested configuration for inbound connections through network address translators 5353/udp mDNS - multicastDNS 5402/tcp,udp StarBurst AutoCast MFTP 5405/tcp,udp NetSupport 5421/tcp,udp Net Support 2 5432/tcp PostgreSQL...
hp-client 优化设备ID 2年前 hp-common bug 2年前 hp-proxy 更新域名 2年前 hp-server 优化调整,按用户进行精准控制鉴别 2年前 proto 添加UDP协议支持,golang客服端完善中 3年前 queue 内网穿透 web管理界面端 4年前 .gitignore 内网穿透 web管理界面端 ...
By doing this, you create a fifo at /tmp/f and make nc listen at port 1234 of address 127.0.0.1 on `server' side, when a `client' establishes a connection successfully to that port, /bin/sh gets executed on `server' side and the shell prompt is given to `client' side. ...