#include <xenctrl.h>#include <xenguest.h>#include <stdio.h>#include <errno.h>#include <stdlib.h>#include <string.h>#include <ctype.h>#include <xs.h>#include <fcntl.h>#include <sys/mman.h>#define RING_SIZE 4096*8int xc;int main(int argc, char** argv){	char* b= (char*) mmap(0,RING_SIZE, PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0,0);	char* a = b;	unsigned int n=RING_SIZE;	int i;	xc = xc_interface_open();	xc_readconsolering(xc,&b,&n,1);	for(i=0; i<n; i++) if(!isascii(a[i])) a[i]=' ';	a[n]='\0';	xc_interface_close(xc);	puts(a);	return 0;}