#include <sys/socket.h> #include <netinet/in.h> #include <string.h> int main(){ int clientSocket, portNum, nBytes; char buffer[1024]; struct sockaddr_in serverAddr; socklen_t addr_size; /*Create UDP socket*/ clientSocket = socket(PF_INET, SOCK_DGRAM, 0); /*Configure settings in...
// client code for UDP socket programming#include<arpa/inet.h>#include<netinet/in.h>#include<stdio.h>#include<stdlib.h>#include<string.h>#include<sys/socket.h>#include<sys/types.h>#include<unistd.h>#defineIP_Protocol 0#defineIP_Address"127.0.0.1"// localhost#definePort_No 15050#defineN...
<?php /* Simple php udp socket client */ //Reduce errors error_reporting(~E_WARNING); $server = '127.0.0.1'; $port = 9999; if(!($sock = socket_create(AF_INET, SOCK_DGRAM, 0))) { $errorcode = socket_last_error(); $errormsg = socket_strerror($errorcode); die("Couldn't cre...
if ((sock = socket(PF_INET, SOCK_DGRAM, 0))< 0); ERR_EXIT("socket"); //三个参数:地址族,端口,本机ip地址 struct sockaddr_in servaddr; memset(&servaddr, 0, servaddr); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(5188); servaddr.sin_addr.s_addr = htons(INADDR_...
#include<sys/socket.h> #include<netinet/in.h> #include<string.h> #define ERR_EXIT(m) \ do { \ perror(m); \ exit(EXIT_FAILURE); \ } while (0) void echo_ser(int sock) { char recvbuf[1024] = {0}; struct sockaddr_in peeraddr; ...
在C++中实现UDP发送和接收可以使用socket编程。下面是一个简单的示例代码: 发送UDP数据包: #include <iostream> #include <string> #include <cstring> #include <unistd.h> #include <sys/socket.h> #include <netinet/in.h> int main() { int sockfd; struct sockaddr_in serverAddr; // 创建UDP socket...
22: sockaddr_in is a structure containing an Internet socket address. Basically, it contains: an address family (always AF_INET for our purposes) a port number an IP address si_me defines the socket where the server will listen. si_other defines the socket at the other end of the link ...
简单理解Socket 以前只知道TCP、UDP会用到Socket,可以用来建立连接、发送报文 这里简单进一步了解下Socket端口多指虚拟的网络端口。指的是TCP/IP协议的端口,端口号从0到65535Socket对TCP/IP进行了抽象和实现,为应用层提供接口socket和端口的关系socket就像是快递员,端口就像是门牌号 ...
TCP UDP 在传输层 Linux socket 本地进程间通信 socket起源于Unix,而Unix/Linux基本哲学之一就是“一切皆文件”,都可以用“打开open –> 读写write/read –> 关闭close”模式来操作。Socket就是该模式的一个实现, socket即... 【socket】socket 套接字 ...
echoser_udp.c: #include<stdio.h> #include<stdlib.h> #include<unistd.h> #include<errno.h> #include<sys/types.h> #include<sys/socket.h> #include<netinet/in.h> #include<string.h> #define ERR_EXIT(m) \ do { \ perror(m); \ ...