- 客户端
1 #define _CRT_SECURE_NO_WARNINGS 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <winsock.h> 5 #include <string.h> 6 #pragma comment(lib,"ws2_32.lib") 7 8 //定义端口 9 #define PORT 6666 10 //缓冲区大小 11 #define BUF_SIZE 1024 12 //文件名大小 13 #define FILENAMESIZE 512 14 //本地地址 15 #define SIP "192.168.1.108" 16 17 //主函数 18 void main() 19 { 20 //用于初始化网络 21 WSADATA wsadata; 22 //定义版本 23 WORD socketversion = MAKEWORD(2, 2); 24 //初始化网络 25 if (WSAStartup(socketversion,&wsadata)!=0) 26 { 27 printf("网络初始化失败"); 28 return; 29 } 30 //创建TCP通信 31 SOCKET client_socket = socket(AF_INET, SOCK_STREAM, 0); 32 //判断是否创建成功 33 if (client_socket==SOCKET_ERROR) 34 { 35 printf("网络创建通信socket出错"); 36 return; 37 } 38 //设定服务器信息 39 SOCKADDR_IN sever_addr; 40 sever_addr.sin_family = AF_INET; 41 sever_addr.sin_addr.S_un.S_addr = inet_addr(SIP); 42 //设定IP，端口 43 sever_addr.sin_port = htons(PORT); 44 //连接到服务器 45 if (connect(client_socket, (SOCKADDR*)&sever_addr, sizeof(sever_addr)) == SOCKET_ERROR) 46 { 47 puts("连接错误"); 48 return; 49 } 50 char filename[512] = { 0 }; 51 //初始化 52 scanf("%s", filename); 53 54 char buffer[1024] = { 0 }; 55 memset(buffer, 0, 1024); 56 strcpy(buffer, filename); 57 58 //传递文件名，请求下载 59 if (send(client_socket,buffer,1024,0) <0)//传输出错 60 { 61 puts("传输错误"); 62 return; 63 } 64 65 //写文件 66 FILE *pf= fopen(filename, "wb"); 67 if (pf==NULL) 68 { 69 puts("文件打开失败"); 70 return; 71 72 73 } 74 else 75 { 76 memset(buffer, 0, 1024); 77 int length = 0; 78 printf("文件开始传输"); 79 //不断接收 80 while ((length=recv(client_socket,buffer,1024,0))>0) 81 { 82 if (fwrite(buffer,sizeof(char),length,pf)<length) 83 { 84 puts("文件传输错误"); 85 } 86 memset(buffer, 0, 1024); 87 } 88 printf("文件传输成功"); 89 system("pause"); 90 system(filename); 91 } 92 //关闭文件网络，清理网络 93 fclose(pf); 94 closesocket(client_socket); 95 WSACleanup(); 96 }
- 服务器端
1 #define _CRT_SECURE_NO_WARNINGS 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <winsock.h> 5 #include <string.h> 6 #pragma comment(lib,"ws2_32.lib") 7 8 #define PORT 6666 9 #define BUF_SIZE 1024 10 #define FILENAMESIZE 512 11 #define SIP "169.254.29.232" 12 13 void main() 14 { 15 //初始化服务器ip地址与端口号并定义谁可以连接 16 SOCKADDR_IN server_addr; 17 server_addr.sin_family = AF_INET; 18 server_addr.sin_port = htons(PORT); 19 //本地ip地址 20 server_addr.sin_addr.S_un.S_addr = INADDR_ANY; 21 WSADATA wsadata; 22 WORD socketversion = MAKEWORD(2, 2);//定义版本 23 if (WSAStartup(socketversion, &wsadata) != 0) 24 { 25 printf("网络初始化失败"); 26 return; 27 } 28 //创建 29 SOCKET server_socket = socket(AF_INET, SOCK_STREAM, 0);//创建 30 if (server_socket == SOCKET_ERROR) 31 { 32 printf("网络创建通信socket出错"); 33 return; 34 } 35 //绑定 36 if (SOCKET_ERROR == bind(server_socket,(SOCKADDR*) &server_addr, sizeof(server_addr))) 37 { 38 printf("bind 出错"); 39 return; 40 } 41 //监听 42 if (SOCKET_ERROR == listen(server_socket,10)) 43 { 44 printf("listen 出错"); 45 return; 46 } 47 //传文件 48 49 while (1) 50 { 51 printf("进入listen，开始等待客户端"); 52 //客户端地址 53 SOCKADDR_IN client_addr; 54 int clientlength = sizeof(client_addr); 55 //接收连接 56 SOCKET new_socket = accept(server_socket, (SOCKADDR*)&client_addr, &clientlength); 57 if (SOCKET_ERROR == new_socket) 58 { 59 printf("服务器已经满或者链接失败"); 60 break; 61 } 62 char buffer[1024] = { 0 }; 63 char filename[512] = { 0 }; 64 //接收信息 65 if (recv(new_socket,buffer,1024,0)<0) 66 { 67 printf("收取文件名失败"); 68 break; 69 } 70 strcpy(filename, buffer); 71 72 //以二进制方式读取 73 FILE *pf = fopen(filename, "rb"); 74 if (pf == NULL) 75 { 76 printf("文件打开失败"); 77 break; 78 } 79 else 80 { 81 memset(buffer, 0, 1024);//清零 82 int recelength = 0; 83 while ((recelength = fread(buffer, sizeof(char), 1024, pf)>0)) 84 { 85 if (send(new_socket,buffer,1024,0)<0) 86 { 87 printf("文件传输失败"); 88 break; 89 } 90 memset(buffer, 0, 1024);//清零 91 } 92 fclose(pf); 93 printf("传输完成"); 94 95 } 96 97 closesocket(new_socket); 98 } 99 closesocket(server_socket); 100 system("pause"); 101 WSACleanup(); 102 }