#include "a.h" Rectangleboundsrect(Rectangle r){	return Rect(0, 0, Dx(r), Dy(r));} Image*ealloccolor(ulong col){	Image *b;		b = allocimage(display, Rect(0, 0, 1, 1), screen->chan, 1, col);	if(b == nil)		sysfatal("allocimage: %r");	return b;} void*emalloc(ulong n){	void *p;		p = malloc(n);	if(p == nil)		sysfatal("malloc: %r");	return p;} void*erealloc(void *p, ulong n){	void *t;		t = realloc(p, n);	if(t == nil)		sysfatal("realloc: %r");	return t;} char*slurp(char *path){	int fd;	long r, n, s;	char *buf; 	n = 0;	s = 8192;	buf = malloc(s);	if(buf == nil)		return nil;	fd = open(path, OREAD);	if(fd < 0)		return nil;	for(;;){		r = read(fd, buf + n, s - n);		if(r < 0)			return nil;		if(r == 0)			break;		n += r;		if(n == s){			s *= 1.5;			buf = realloc(buf, s);			if(buf == nil)				return nil;		}	}	buf[n] = 0;	close(fd);	return buf;} char*homedir(void){	Biobuf *bp;	char *s;		bp = Bopen("/env/home", OREAD);	s = Brdstr(bp, 0, 0);	Bterm(bp);	if(s == nil)		s = strdup("/tmp");	return s;} char*abspath(char *wd, char *p){	char *s; 	if(p[0]=='/')		s = strdup(p);	else		s = smprint("%s/%s", wd, p);	cleanname(s);	return s;} intwresize(int w, int h){	int fd, n;	char buf[255]; 	fd = open("/dev/wctl", OWRITE|OCEXEC);	if(fd < 0)		return -1;	n = snprint(buf, sizeof buf, "resize -dx %d -dy %d", w, h);	if(write(fd, buf, n) != n){		close(fd);		return -1;	}	close(fd);	return 0;}