NVIDIA Jetson TX1 系列开发教程之十一：TCP/IP文件传输

「爱情、让人受尽委屈。」 2022-06-10 13:43 176阅读 0赞

**NVIDIA Jetson TX1 系列开发教程之十一：TCP/IP文件传输**

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*  **转载请注明作者和出处：[http://blog.csdn.net/u011475210][http_blog.csdn.net_u011475210]**
 *  **嵌入式平台：NVIDIA Jetson TX1**
 *  **嵌入式系统：Ubuntu16.04**
 *  **虚拟机系统：Ubuntu14.04**
 *  **编者: WordZzzz**

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**写在前面：**  
本篇博文设计的内容是TCP/IP文件传输，只是简单的实现文档、图片等二进制文件的传输，并将大包进行分包发送，不涉及select等机制。

**一、服务端程序：**

/*
     * common.h
     *
     *  Created on: Aug 11, 2017
     *      Author: wordzzzz
     */
    
    #ifndef COMMON_H_
    #define COMMON_H_
    
    #include <stdio.h>
    #include <stdlib.h>
    #include <unistd.h>
    #include <string.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <sys/socket.h>
    #include <netinet/in.h>
    
    #define PORT 6000
    #define LISTENQ 20
    #define BUFFSIZE 4096
    #define FILE_NAME_MAX_SIZE 512
    
    #endif /* COMMON_H_ */

/*
     * fileserver.c
     *
     *  Created on: Aug 11, 2017
     *      Author: wordzzzz
     */
    
    #include "common.h"
    
    int main(int argc, char **argv[])
    {
        //Create socket
        int sockfd,connfd;
        struct sockaddr_in svraddr,clientaddr;
        bzero(&svraddr,sizeof(svraddr));
        bzero(&clientaddr,sizeof(clientaddr));
    
        svraddr.sin_family=AF_INET;
        svraddr.sin_addr.s_addr=htonl(INADDR_ANY);
        svraddr.sin_port=htons(PORT);
    
        sockfd=socket(AF_INET,SOCK_STREAM,0);
        if(sockfd<0)
        {
            perror("socket");
            exit(1);
        }
    
        //bind
        if(bind(sockfd,(struct sockaddr*)&svraddr,sizeof(svraddr))<0)
        {
            perror("bind");
            exit(1);
        }
    
        //listen
        if(listen(sockfd,LISTENQ)<0)
        {
            perror("listen");
            exit(1);
        }
    
        while(1)
        {
            socklen_t clientaddrlen=sizeof(clientaddr);
    
            //accept
            connfd=accept(sockfd,(struct sockaddr*)&clientaddr,&clientaddrlen);
            if(connfd<0)
            {
                perror("connect");
                exit(1);
            }
    
            //recv file imformation
            char buff[BUFFSIZE];
            char filename[FILE_NAME_MAX_SIZE];
            int count;
            bzero(buff,BUFFSIZE);
    
            count=recv(connfd,buff,BUFFSIZE,0);
            if(count<0)
            {
                perror("recv");
                exit(1);
            }
            strncpy(filename,buff,strlen(buff)>FILE_NAME_MAX_SIZE?FILE_NAME_MAX_SIZE:strlen(buff));
    
            printf("Preparing recv file : %s\n",filename);
    
            //recv file
            FILE *fd=fopen(filename,"wb+");
            if(NULL==fd)
            {
                perror("open");
                exit(1);
            }
            bzero(buff,BUFFSIZE);
    
            int length=0;
            while(length=recv(connfd,buff,BUFFSIZE,0))
            {
                if(length<0)
                {
                    perror("recv");
                    exit(1);
                }
                int writelen=fwrite(buff,sizeof(char),length,fd);
                if(writelen<length)
                {
                    perror("write");
                    exit(1);
                }
                bzero(buff,BUFFSIZE);
            }
            printf("Receieved file:%s finished!\n",filename);
    
            fclose(fd);
            close(connfd);
        }
        close(sockfd);
        return 0;
    }

**二、客户端程序：**

/*
     * fileclient.c
     *
     *  Created on: Aug 11, 2017
     *      Author: wordzzzz
     */
    
    #include "common.h"
    
    int main(int argc, char **argv[])
    {
        int clientfd;
    
        if(argc!=3)
        {
            fprintf(stderr,"Usage:./fileclient <IP_Address> <filename>\n");
            exit(1);
        }
    
        //Input the file name
        char filename[FILE_NAME_MAX_SIZE];
        bzero(filename,FILE_NAME_MAX_SIZE);
        strcpy(filename, argv[2]);
    
        struct sockaddr_in clientaddr;
        bzero(&clientaddr,sizeof(clientaddr));
    
        clientaddr.sin_family=AF_INET;
        clientaddr.sin_addr.s_addr=htons(INADDR_ANY);
        clientaddr.sin_port=htons(0);
    
        clientfd=socket(AF_INET,SOCK_STREAM,0);
    
        if(clientfd<0)
        {
            perror("socket");
            exit(1);
        }
    
        //bind
        if(bind(clientfd,(struct sockaddr*)&clientaddr,sizeof(clientaddr))<0)
        {
            perror("bind");
            exit(1);
        }
    
        struct sockaddr_in svraddr;
        bzero(&svraddr,sizeof(svraddr));
        if(inet_aton(argv[1],&svraddr.sin_addr)==0)
        {
            perror("inet_aton");
            exit(1);
        }
        svraddr.sin_family=AF_INET;
        svraddr.sin_port=htons(PORT);
    
        socklen_t svraddrlen=sizeof(svraddr);
        if(connect(clientfd,(struct sockaddr*)&svraddr,svraddrlen)<0)
        {
            perror("connect");
            exit(1);
        }
    
        //send file imformation
        char buff[BUFFSIZE];
        int count;
        bzero(buff,BUFFSIZE);
        strncpy(buff,filename,strlen(filename)>FILE_NAME_MAX_SIZE?FILE_NAME_MAX_SIZE:strlen(filename));
        count=send(clientfd,buff,BUFFSIZE,0);
        if(count<0)
        {
            perror("Send file information");
            exit(1);
        }
    
        //read file
        FILE *fd=fopen(filename,"rb");
        if(fd==NULL)
        {
            printf("File :%s not found!\n",filename);
        }
        else
        {
            bzero(buff,BUFFSIZE);
            int file_block_length=0;
            while((file_block_length=fread(buff,sizeof(char),BUFFSIZE,fd))>0)
            {
                printf("file_block_length:%d\n",file_block_length);
                if(send(clientfd,buff,file_block_length,0)<0)
                {
                    perror("Send");
                    exit(1);
                }
                bzero(buff,BUFFSIZE);
            }
            fclose(fd);
            printf("Transfer file finished !\n");
        }
    
        close(clientfd);
        return 0;
    }

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**完的汪(∪｡∪)｡｡｡zzz**

[http_blog.csdn.net_u011475210]: http://blog.csdn.net/u011475210