#include "lib9.h"#include "draw.h"#include "bio.h" static ulonggetval(char **p){	ulong v;	char *q; 	v = strtoul(*p, &q, 0);	v |= v<<8;	v |= v<<16;	*p = q;	return v;} voidreadcolmap(Display *d, RGB *colmap){	int i;	char *p, *q;	Biobuf *b;	char buf[128]; 	sprint(buf, "/dev/draw/%d/colormap", d->dirno);	b = Bopen(buf, OREAD);	if(b == 0)		drawerror(d, "rdcolmap: can't open colormap device"); 	for(;;) {		p = Brdline(b, '\n');		if(p == 0)			break;		i = strtoul(p, &q, 0);		if(i < 0 || i > 255) {			_drawprint(2, "rdcolmap: bad index\n");			exits("bad");		}		p = q;		colmap[255-i].red = getval(&p);		colmap[255-i].green = getval(&p);		colmap[255-i].blue = getval(&p);	}	Bterm(b);}