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client.cc
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client.cc
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#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/stat.h>
#include<fcntl.h>
#include<unistd.h>
int main(void)
{
int sockfd,length;
char data[1024];
char serverIP[15];
char buf[BUFSIZ];
struct sockaddr_in myaddr;
struct sockaddr_in servaddr;
if((sockfd = socket(AF_INET,SOCK_STREAM.0))<0){
printf("socket error\n");
return 0;
}
memset((char*)&myaddr,0,sizeof(myaddr));
myaddr.sin_family = AF_INET;
myaddr.sin_addr.s_addr = htonl(INADDR_ANY);
myaddr.sin_port = htons(0);
if (bind(sockfd,(struct sockaddr*)&myaddr,sizeof(myaddr))<0){
printf("bind error\n");
return 0;
}
memset((char*)&servaddr,0,sizeof(servaddr));
printf("Enter Server IP:");
scanf("%s",serverIP);
servaddr.sin_family = AF_INET;
servaddr.sin_port = htons(1234);
servaddr.sin_addr.s_addr = inet_addr(serverIP);
if (connect(sockfd,(struct sockaddr*)&servaddr,sizeof(servaddr))<0){
printf("connect failed !");
return 0;
}
printf("Send Data : ");
scanf("%s",data);
if (write(sockfd,data,strlen(data))<0){
printf("write error!\n");
return 0;
}
printf("Receive Data : %s\n",buf );
close(sockfd);
return 0;
}