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2b814cde29
This adds a file to regression-test the previously introduced off-by-one error in the check on read for a colormapped PNG with an out-of-range index (equal or greater than the length of the PLTE). Previous tests covered all cases except the 8-bit palette case; the "small" test file contains the "bad" entry at index 254, not 255 so it passes even if the final byte is not checked. The new file has the erroneous entry in the last byte. Signed-off-by: John Bowler <jbowler@acm.org>
This "contrib" directory contains contributions which are not necessarily under the libpng license, although all are open source. They are not part of libpng proper and are not used for building the library, although some are used for testing the library via "make check".