Windows网络编程：winsock文件传输范例

基于TCP流协议的winsock网络文件传输Demo：

实现：C语言

功能：文件传输（可以传任何格式的文件）

/*************************************************************************

	> File Name: Win_Server.c

	> Author: SongLee

	> E-mail: lisong.shine@qq.com

	> Created Time: 2014年03月16日 星期日 19时43分44秒

    > Personal Blog: http://songlee24.github.io/

 ************************************************************************/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <WinSock2.h>

#define PORT 8087

#define SERVER_IP "127.0.0.1"

#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);

		SOCKET m_New_Socket = accept(m_Socket, (sockaddr *)&client_addr, &client_addr_len);

		if (SOCKET_ERROR == m_New_Socket)

		{

			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)

		{

			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, "rb");  //windows下是"rb",表示打开一个只读的二进制文件

		if (NULL == fp)

		{

			printf("File: %s Not Found\n", file_name);

		}

                else

		{

			memset(buffer, 0, BUFFER_SIZE);

			int length = 0;

			while ((length = fread(buffer, sizeof(char), BUFFER_SIZE, fp)) > 0)

			{

				if (send(m_New_Socket, buffer, length, 0) < 0)

				{

					printf("Send File: %s Failed\n", file_name);

					break;

				}

				memset(buffer, 0, BUFFER_SIZE);

			}

			fclose(fp);

			printf("File: %s Transfer Successful!\n", file_name);

		}

		closesocket(m_New_Socket);

	}

	closesocket(m_Socket);

	//释放winsock库

	WSACleanup();

	return 0;

}

/*************************************************************************

	> File Name: Win_Client.c

	> Author: SongLee

	> E-mail: lisong.shine@qq.com

	> Created Time: 2014年03月16日 星期日 20时12分10秒

    > Personal Blog: http://songlee24.github.io/

 ************************************************************************/

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <WinSock2.h>

#define PORT 8087

#define SERVER_IP "127.0.0.1"

#define BUFFER_SIZE 1024

#define FILE_NAME_MAX_SIZE 512

#pragma comment(lib, "WS2_32")

int main()

{

	// 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 c_Socket = socket(AF_INET, SOCK_STREAM, 0);

	if (SOCKET_ERROR == c_Socket)

	{

		printf("Create Socket Error!");

		system("pause");

		exit(1);

	}

	//指定服务端的地址

	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)))

	{

		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: ");

	scanf("%s", &file_name);

	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, "wb"); //windows下是"wb",表示打开一个只写的二进制文件

	if(NULL == fp)

	{

		printf("File: %s Can Not Open To Write\n", file_name);

		system("pause");

		exit(1);

	}

	else

	{

		memset(buffer, 0, BUFFER_SIZE);

		int length = 0;

		while ((length = recv(c_Socket, buffer, BUFFER_SIZE, 0)) > 0)

		{

			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);

	closesocket(c_Socket);

	//释放winsock库

	WSACleanup();

	system("pause");

	return 0;

}

巴特西

Windows网络编程：winsock文件传输范例

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