#include <u.h>#include <libc.h>#include <bin.h>#include <httpd.h> inthurlfmt(Fmt *f){	char buf[HMaxWord*2];	Rune r;	char *s;	int t; 	s = va_arg(f->args, char*);	for(t = 0; t < sizeof(buf) - 8; ){		s += chartorune(&r, s);		if(r == 0)			break;		if(r <= ' ' || r == '%' || r >= Runeself)			t += snprint(&buf[t], sizeof(buf)-t, "%%%2.2x", r);		else			buf[t++] = r;	}	buf[t] = 0;	return fmtstrcpy(f, buf);}