#include "lib9.h"#include "kernel.h"#include "draw.h" Font*openfont(Display *d, char *name){	Font *fnt;	int fd, i, n;	char *buf;	Dir *dir; 	fd = libopen(name, OREAD);	if(fd < 0)		return 0; 	if((dir = libdirfstat(fd)) == nil){    Err0:		libclose(fd);		return 0;	}	n = dir->length;	free(dir);	buf = malloc(n+1);	if(buf == 0)		goto Err0;	buf[n] = 0;	i = libreadn(fd, buf, n);	libclose(fd);	if(i != n){		free(buf);		return 0;	}	fnt = buildfont(d, buf, name);	free(buf);	return fnt;}