read_label
if (setjmp(read_label))
longjmp(read_label, 1);
static jmp_buf read_label;
error = read_label(d, offset);
if (read_label(d) == 0) {
error = read_label(d);
error = read_label(fp, label, size, NULL);
error = read_label(fp, label, size, volpath);