Lennart Poettering
59f2725cc8
This changes dns_name_between() to deal properly with checking whether B is between A and C if A and C are equal. Previously we simply returned -EINVAL in this case, refusing checking. With this change we correct behaviour: if A and C are equal, then B is "between" both if it is different from them. That's logical, since we do < and > comparisons, not <= and >=, and that means that anything "right of A" and "left of C" lies in between with wrap-around at the ends. And if A and C are equal that means everything lies between, except for A itself. This fixes handling of domains using NSEC3 "white lies", for example the .it TLD. Fixes: #7421
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