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

时间:2022-08-31 22:25:10

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


  • 转载请注明作者和出处: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

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;
}

系列教程持续发布中,欢迎订阅、关注、收藏、评论、点赞哦~~( ̄▽ ̄~)~

完的汪(∪。∪)。。。zzz