void trans_server(){
	char a;
	//client get or send or quit
	recv(sockad,&a,1,0);


	for(;a!='Q'&&a!='q';){
		if(a=='S'||a=='s'){
			trans_s_get();
		}
		else if(a=='G'||a=='g'){
			trans_s_send();
		}
		recv(sockad,&a,1,0);
	}
	printf("exit trans_server\n");
}

void trans_s_get(){
	printf("trans_get is running\n");
	FILE *f;
	char *name;
	char *s;
	int i;
	int sock_status;
	char a;
	char *num_send;
	int num_sen;
	a='a';
	num_send=(char *)malloc(4*sizeof(char));
	name=(char *)malloc(sizeof(char)*128);
	s=(char *)malloc(sizeof(char)*1024);
	int num_name;
	memset(name,0,128*sizeof(char));
	memset(s,0,1024*sizeof(char));
	sock_status=recv(sockad,name,128,0);
	for(;sock_status<0;){
		sock_status=recv(sockad,name,128,0);
	}
	printf("get name : %s\n",name);


	f=fopen(name,"w+");
	printf("opening text\n");

	for(;a!='Q';){
		sock_status=recv(sockad,num_send,4,0);
		for(;sock_status<0;){
			sock_status=recv(sockad,num_send,4,0);
		}
		num_sen=char_to_int(num_send);

		sock_status=recv(sockad,s,num_sen,0);
		for(;sock_status<0;){
			sock_status=recv(sockad,s,num_sen,0);
		}
		sock_status=recv(sockad,&a,1,0);
		for(;sock_status<0;){
			sock_status=recv(sockad,&a,1,0);
		}
		printf("get this chars:%s\n",s);
		printf("get a: %c\n",a);
		fprintf(f,"%s",s);
		memset(s,0,1024*sizeof(char));
	}
	printf("write done\n");
	free(name);
	free(s);
	fclose(f);

	printf("exit trans\n");
}

void trans_s_send(){
	char *name;
	name=(char *)malloc(sizeof(char)*128);
	int num_name;
	memset(name,0,128*sizeof(char));
	num_name=recv(sockad,name,128,0);
	free(name);

}

int char_to_int(char *num_send){
	int i;
	int a;
	int m;
	int d;
	int s=0;
	for(i=0;i<4;i++){
		a=3-i;
		for(d=1;a>0;a--){
			d=d*10;
		}
		m=num_send[i]-48;
		s=s+m*d;
	}

	return s;
}