Add polygonToCellsNoHoles fuzzer#557
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isaacbrodsky merged 36 commits intouber:masterfrom Jan 23, 2022
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dfellis
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Jan 17, 2022
nrabinowitz
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Jan 22, 2022
| geoPolygon.numHoles = 0; | ||
| geoPolygon.holes = NULL; | ||
| geoPolygon.geoloop.numVerts = numVerts; | ||
| geoPolygon.geoloop.verts = (LatLng *)(data + 1); |
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For my info - why + 1? Oh, because the first uint_8 is the res? Might be worth a comment.
I imagine that most fuzzer runs would error quickly on an invalid res here, and never exercise the polyfill...
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This is still better than fuzzerPoylgonToCells.c which is very difficult for the fuzzer to make progress on; here it only needs to guess one byte correctly (polygonToCells actually takes an int but I don't think that's quite as relevant) which I believe is very doable.
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Based on #553. This adds a second fuzzer for polygonToCells which does not require the fuzzer to guess the correct number of cells.