windows 下实现socket编程_传送文件

windows 下实现socket编程_传送文件

其实，Windows下的socket编程与Linux下的类似，这里不再赘述！

参考：http://blog.csdn.net/chudongfang2015/article/details/51926999

下面直接上代码：

cilent.cpp:

/*************************************************************************   = File Name: Win_Client.c  ************************************************************************/ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <WinSock2.h> #define PORT 8087 //端口号#define SERVER_IP "127.0.0.1"//本地环回地址，#define BUFFER_SIZE 1024 #define FILE_NAME_MAX_SIZE 512 //文件名最大值#pragma comment(lib, "WS2_32")//加入相应的库  int main() {   // WSADATA wsaData; WORD socketVersion = MAKEWORD(2, 0); if(WSAStartup(socketVersion, &wsaData) != 0) { printf("Init socket dll error!"); exit(1); }   //创建socket SOCKET c_Socket = socket(AF_INET, SOCK_STREAM, 0); if (SOCKET_ERROR == c_Socket) //出错报错{ printf("Create Socket Error!"); system("pause"); exit(1); }   //指定服务端的地址 ，固定写法sockaddr_in server_addr; server_addr.sin_family = AF_INET; server_addr.sin_addr.S_un.S_addr = inet_addr(SERVER_IP); server_addr.sin_port = htons(PORT);   if (SOCKET_ERROR == connect(c_Socket, (LPSOCKADDR)&server_addr, sizeof(server_addr)))//连接client { printf("Can Not Connect To Server IP!\n"); system("pause"); exit(1); }   //输入文件名 char file_name[FILE_NAME_MAX_SIZE+1]; memset(file_name, 0, FILE_NAME_MAX_SIZE+1); printf("Please Input File Name On Server: \n"); scanf("%s",file_name);  //把文件名考到file_name中 char buffer[BUFFER_SIZE]; memset(buffer, 0, BUFFER_SIZE); strncpy(buffer, file_name, strlen(file_name)>BUFFER_SIZE ? BUFFER_SIZE:strlen(file_name));   //向服务器发送文件名 if(send(c_Socket, buffer, BUFFER_SIZE, 0) < 0) { printf("Send File Name Failed\n"); system("pause"); exit(1); }   //打开文件，准备写入 FILE * fp = fopen(file_name, "rt"); if(NULL == fp) { printf("File: %s Can Not Open To Write\n", file_name); system("pause"); exit(1); } else{ memset(buffer, 0, BUFFER_SIZE);//清空buffer区域， int length = 0;  //发送文件内容，直到读不到文件while((length = fread(buffer, sizeof(char), BUFFER_SIZE, fp)) > 0) { if (send(c_Socket, buffer, length, 0) < 0)//向服务端发送 { printf("Send File: %s Failed\n", file_name); break; } memset(buffer, 0, BUFFER_SIZE); } printf("File: %s Transfer Successful!\n", file_name); }   fclose(fp); //关闭文件closesocket(c_Socket);//关闭socket     //释放winsock库 WSACleanup();   system("pause"); return 0; } 

server.cpp:

/*************************************************************************   > File Name: Win_Server.c  ************************************************************************/  #include <stdio.h> #include <stdlib.h> #include <string.h> #include <WinSock2.h>   #define PORT 8087 //端口号#define SERVER_IP "127.0.0.1"//本地环回地址 #define BUFFER_SIZE 1024 #define FILE_NAME_MAX_SIZE 512 #pragma comment(lib, "WS2_32")   int main() { // 声明并初始化一个服务端(本地)的地址结构 sockaddr_in server_addr; server_addr.sin_family = AF_INET; server_addr.sin_addr.S_un.S_addr = INADDR_ANY; server_addr.sin_port = htons(PORT);   // 初始化socket dll WSADATA wsaData; WORD socketVersion = MAKEWORD(2, 0); if(WSAStartup(socketVersion, &wsaData) != 0) { printf("Init socket dll error!"); exit(1); }   // 创建socket SOCKET m_Socket = socket(AF_INET, SOCK_STREAM, 0);     if (SOCKET_ERROR == m_Socket)     {       printf("Create Socket Error!");   exit(1);     }   //绑定socket和服务端(本地)地址 if (SOCKET_ERROR == bind(m_Socket, (LPSOCKADDR)&server_addr, sizeof(server_addr))) { printf("Server Bind Failed: %d", WSAGetLastError()); exit(1); }   //监听 if (SOCKET_ERROR == listen(m_Socket, 10)) { printf("Server Listen Failed: %d", WSAGetLastError()); exit(1); }     while(1) { printf("Listening To Client...\n");  sockaddr_in client_addr; int client_addr_len = sizeof(client_addr); //得到客户端描述符SOCKET m_New_Socket = accept(m_Socket, (sockaddr *)&client_addr, &client_addr_len); if (SOCKET_ERROR == m_New_Socket) //创建新的套接字{ printf("Server Accept Failed: %d", WSAGetLastError());//？？？？？？？？？？？break; }   char buffer[BUFFER_SIZE]; memset(buffer, 0, BUFFER_SIZE); if (recv(m_New_Socket, buffer, BUFFER_SIZE, 0) < 0)//接受客户端发来的文件名 { printf("Server Receive Data Failed!"); break; }   char file_name[FILE_NAME_MAX_SIZE+1]; memset(file_name, 0, FILE_NAME_MAX_SIZE+1); strncpy(file_name, buffer, strlen(buffer)>FILE_NAME_MAX_SIZE ? FILE_NAME_MAX_SIZE:strlen(buffer)); printf("%s\n", file_name);   FILE * fp = fopen(file_name, "wt");//以写入的方式打开文件if (NULL == fp) { printf("File: %s Not Found\n", file_name); } else{ memset(buffer, 0, BUFFER_SIZE); int length = 0; //接受到客户端发来的文件数据while ((length = recv(m_New_Socket, buffer, BUFFER_SIZE, 0)) > 0) { //把发来的数据写入到文件中if (fwrite(buffer, sizeof(char), length, fp) < length) { printf("File: %s Write Failed\n", file_name); break; } memset(buffer, 0, BUFFER_SIZE); } printf("Receive File: %s From Server Successful!\n", file_name); } fclose(fp); //关闭文件描述符closesocket(m_New_Socket); }   closesocket(m_Socket); //释放winsock库 WSACleanup(); return 0; }