Christian Glombek
a4b109f01f
The existing case only covered a fully-uncompressed re-occurrence. Every DNS-SD name shares an in-range suffix, so also pin that a name first seen beyond the pointer range still compresses from its mapped suffix -- one label plus a two-byte pointer per occurrence, map unchanged, and the pointer addressing the suffix's prior occurrence rather than any in-range octet. A padding helper puts the next append at a chosen offset, for the two sides of the boundary: at 0x3FFF the name is still mapped and re-occurs as a pointer whose wire bytes are checked independently of the parser; one past it, it is not mapped.
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