소켓 프로그래밍에서 구조체를 넘길 때 데이터가 안넘어옵니다.

/*
	C socket server example
*/
 
#include<stdio.h>
#include<string.h>	//strlen
#include<sys/socket.h>
#include<arpa/inet.h>	//inet_addr
#include<unistd.h>	//write
 
typedef struct s_connection {
    int sock;
    int index;
    int age;
    char mbti[4];
    char rname[32];
    char nick[32];
}Connection;
 
int main(int argc , char *argv[])
{
	int socket_desc , client_sock , c , read_size;
	struct sockaddr_in server , client;
	char client_message[2000];
 
	//Create socket
	socket_desc = socket(AF_INET , SOCK_STREAM , 0);
	if (socket_desc == -1)
	{
		printf("Could not create socket");
	}
	puts("Socket created");
 
	//Prepare the sockaddr_in structure
	server.sin_family = AF_INET;
	server.sin_addr.s_addr = INADDR_ANY;
	server.sin_port = htons( 8888 );
 
	//Bind
	if( bind(socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0)
	{
		//print the error message
		perror("bind failed. Error");
		return 1;
	}
	puts("bind done");
 
	//Listen
	listen(socket_desc , 3);
 
	//Accept and incoming connection
	puts("Waiting for incoming connections...");
	c = sizeof(struct sockaddr_in);
 
	//accept connection from an incoming client
	client_sock = accept(socket_desc, (struct sockaddr *)&client, (socklen_t*)&c);
	if (client_sock < 0)
	{
		perror("accept failed");
		return 1;
	}
	puts("Connection accepted");
 
	//Receive a message from client
	read_size = recv(client_sock , client_message , 2000 , 0);
 
	if(read_size == 0)
	{
		puts("Client disconnected");
		fflush(stdout);
	}
	else if(read_size == -1)
	{
		perror("recv failed");
	}
	else if (read_size > 0)
	{
		client_message[read_size] = '\0';
	}
 
	Connection* tmp = (Connection*)client_message;
 
	printf("name : %s\n", tmp->rname);
 
	return 0;
}

/*
	C client example using sockets
*/
#include <stdio.h>	//printf
#include <string.h>	//strlen
#include <sys/socket.h>	//socket
#include <arpa/inet.h>	//inet_addr
#include <unistd.h>
 
typedef struct s_connection {
    int sock;
    int index;
    int age;
    char mbti[4];
    char rname[32];
    char nick[32];
}Connection;
 
int main(int argc , char *argv[])
{
	int sock;
	struct sockaddr_in server;
	char message[1000] , server_reply[2000];
 
	//Create socket
	sock = socket(AF_INET , SOCK_STREAM , 0);
	if (sock == -1)
	{
		printf("Could not create socket");
	}
	puts("Socket created");
 
	server.sin_addr.s_addr = inet_addr("127.0.0.1");
	server.sin_family = AF_INET;
	server.sin_port = htons( 8888 );
 
	//Connect to remote server
	if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0)
	{
		perror("connect failed. Error");
		return 1;
	}
 
	puts("Connected\n");
 
	Connection client;
	strcpy(client.rname, "test");
 
	//Send some data
	if( send(sock , (char*)&client , sizeof(client) , 0) < 0)
	{
		puts("Send failed");
		return 1;
	}
 
	close(sock);
	return 0;
}

Socket created
Connected

Socket created
bind done
Waiting for incoming connections...
Connection accepted
name : test