h" int main(void) { int sock; if ((sock = socket(PF_INET, SOCKSTREAM, IPPROTO_TCP)) < 0) ERR_EXIT("socket); struct sockaddr_in servaddr; memset(&servaddr, 0, sizeof(servaddr)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(5188); servaddr.sin_addr.s_addr...
int listenfd; if ((listenfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) { ERR_EXIT("socket"); } // 2. 分配套接字地址 struct sockaddr_in servaddr; memset(&servaddr, 0, sizeof servaddr); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(6666); servaddr.sin_a...
int connect_timeout(int fd, struct sockaddr_in *addr, unsigned int wait_seconds); #endif ===NetworkProgramming-master (1)\LinuxNetworkProgramming\P16Timeout\srv.c=== #include <unistd.h> #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> ...
<iostream> #include <poll.h> using namespace std; int main() // 基于多路复用select函数实现的并行服务器 { // 1 创建监听的fd int lfd = socket(AF_INET, SOCK_STREAM, 0); // 2 绑定 struct sockaddr_in addr; // struct sockaddr_in是用于表示IPv4地址的结构体,它是基于struct sockaddr的扩展...
#include<sys/types.h>#include<sys/socket.h>#include<netinet/in.h>#include<arpa/inet.h>#include<signal.h>#include<stdlib.h>#include<stdio.h>#include<errno.h>#include<string.h>#defineERR_EXIT(m)\do\{\perror(m);\exit(EXIT_FAILURE);\}while(0)intmain(void){intcount=0;while(1){int...
simba@ubuntu:~/Documents/code/linux_programming/UNP/socket$ ./echocli_recv_peek local ip=127.0.0.1 port=54005 可以先查看一下网络状态, simba@ubuntu:~$ netstat -an | greptcp| grep 5188 tcp 0 0 0.0.0.0:5188 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:54005 127.0.0.1:5188 ESTABLISHED tcp 0 0...
//保存Socket信息对象的数组(Socket集合),FD_SETSIZE表示SELECT模型中允许的最大Socket数量(64); LPSOCKET_INFORMATION SocketArray[FD_SETSIZE]; SOCKET ListenSocket; // 监听套接字 SOCKET AcceptSocket; // 与客户端进行通信的套接字 SOCKADDR_IN InternetAddr; // 服务器的地址 WSADATA wsaData; // 用于初...
篇幅有限select和poll代码在下面这个链接: select mode in c, socket programming on macOS poll mode in c, socket programming on macOS
* 连接SOCKET服务器,如果出错返回-1,否则返回socket处理代码 * server:服务器地址(域名或者IP),serverport:端口 * ***/intconnect_socket(char* server,intserverPort){intsockfd=0;structsockaddr_in addr;structhostent *phost;//向系统注册,通知系统建立一个通信端口//AF_INET表示使用IPv4协议//SOCK_STREAM...
simba@ubuntu:~/Documents/code/linux_programming/UNP/socket$ ./echocli_timeout connect_timeout: Connection refused 很明显是connect_timeout 函数返回了-1,我们也可以推算出connect_timeout 函数中,select返回1,但却是套接字发生错误的情况,errno = ECONNREFUSED,所以打印出Connection refused。