demo/a/practicle/severftp.c

#include<stdio.h>
#include<unistd.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<string.h>
#include<stdlib.h>
int main()
{
	int sd,port,i;
	char msg[80];
	FILE *fp;
	struct sockaddr_in cli;
	sd=socket(AF_INET,SOCK_STREAM,0);
	bzero(&cli,sizeof(cli));
	printf("enter the port no");
	scanf("%d",&port);
	cli.sin_port=port;
	cli.sin_addr.s_addr=inet_addr("127.0.0.1");
	cli.sin_family=AF_INET;
	connect(sd,(struct sockaddr*)&cli,sizeof(cli));
//	printf("\nenter the command\n");
//	scanf("%s",msg);
//	write(sd,msg,strlen(msg));
//	system(msg);
//	read(sd,msg,10);
//	printf("%s",msg);
	memset(msg,'\0',sizeof(msg));
	fp=fopen("out.txt","a+");
	read(sd,msg,10);
	for(i=0;i<strlen(msg);i++)
	{
		fputc(msg[i],fp);
	}
	fclose(fp);
	return 0;
}