苏嵌实训-嵌入式 linux C 第 10?天_综合

项目名称	【苏嵌实训-嵌入式 linux C 第 10 天】
今日进度以及任务	Linux 网络编程
本日任务完成情况（详细说明本日任务是否按计划完成，开发的代码量）	作业 server.c： #include <stdio.h> #include <stdlib.h> #include <strings.h> #include <string.h> #include <sys/types.h> #include <sys/socket.h> #include <arpa/inet.h> #define PORT 33333 int main() { int servfd; int cliefd; int opt; int cl_len; char buff[1024]; struct sockaddr_in servaddr; struct sockaddr_in clieaddr; servfd = socket(AF_INET, SOCK_STREAM, 0); if(servfd == -1) { perror("socket error:"); exit(1); } printf("socket success!\n"); bzero(&servaddr, sizeof(struct sockaddr_in)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(PORT); servaddr.sin_addr.s_addr = inet_addr("127.0.0.1"); opt = 1; setsockopt(servfd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)); if(bind(servfd, (struct sockaddr )(&servaddr), sizeof(struct sockaddr_in)) < 0) { perror("bind error:"); exit(1); } printf("bind success!\n"); if(listen(servfd, 3) < 0) { perror("listen error:"); exit(1); } printf("listen success!\n"); while(1){ memset(buff, 0, sizeof(buff)); bzero(&clieaddr, sizeof(struct sockaddr_in)); cl_len = sizeof(struct sockaddr_in); printf("accepting ........ \n"); cliefd = accept(servfd, (struct sockaddr )(&clieaddr), &cl_len); if(cliefd == -1) { perror("accept error:"); exit(1); } printf("ip: %s port: %d\n", inet_ntoa(clieaddr.sin_addr), ntohs(clieaddr.sin_port)); read(cliefd, buff, sizeof(buff)); printf("recv = %s\n", buff); usleep(2); write(cliefd, buff, strlen(buff)); } return 0; } client.c： #include <stdio.h> #include <stdlib.h> #include <strings.h> #include <string.h> #include <sys/types.h> #include <sys/socket.h> #include <arpa/inet.h> #define PORT 33333 int main() { int cliefd; char buff[1024]; struct sockaddr_in servaddr; cliefd = socket(AF_INET, SOCK_STREAM, 0); if(cliefd == -1) { perror("socket error:"); exit(1); } printf("socket success!\n"); bzero(&servaddr, sizeof(struct sockaddr_in)); servaddr.sin_family = AF_INET; servaddr.sin_port = htons(PORT); servaddr.sin_addr.s_addr = inet_addr("127.0.0.1"); if(connect(cliefd, (struct sockaddr *)(&servaddr), sizeof(struct sockaddr_in)) < 0) { perror("connection error:"); exit(1); } printf("connect success!\n"); write(cliefd, "hello world!", 13); memset(buff, 0, sizeof(buff)); read(cliefd, buff, sizeof(buff)); printf("recv = %s\n", buff); return 0; } 运行结果1：[vic@localhost note]$ ./server socket success! bind success! listen success! accepting ........ ip: 127.0.0.1 port: 46084 recv = hello world! accepting ........ ip: 127.0.0.1 port: 46086 recv = hello world! accepting ........ ip: 127.0.0.1 port: 46088 recv = hello world! accepting ........ ip: 127.0.0.1 port: 46090 recv = hello world! accepting ........ 运行结果2： [vic@localhost note]$ ./client socket success! connect success! recv = hello world! [vic@localhost note]$ ./client socket success! connect success! recv = hello world! [vic@localhost note]$ ./client socket success! connect success! recv = hello world! [vic@localhost note]$ ./client socket success! connect success! recv = hello world!
本日开发中出现的问题汇总	无
本日未解决问题	无
本日开发收获	1. 学会了 Linux网络结构等知识
其他	今后也要认真学习