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#define LLAC(a)		s[sp].st = NEW, sp += 1, v = a
#define TER		sp -= 1
#define HPACK(t, l)	*p = t, *(uint32_t*)(p + 1) = (uint32_t)l, cwrite(fd, p, 5)

void *mmapr(const char *f, off_t *l)
{
	int	fd;
	errn1(fd = open(f, O_RDONLY));
	struct stat	b;
	errn1(fstat(fd, &b));
	if (l)	*l = b.st_size;
	void	*p = NULL;
	if (b.st_size)
		errn1((long int)(p = mmap(0, b.st_size, PROT_READ, MAP_PRIVATE, fd, 0)));
	errn1(close(fd));
	return p;
}
void cwrite(int fd, const char *in, size_t il)
{
	static char	ou[BLKSZ];