libmpq is a library for manipulating MPQ (MoPaQ) archives, which are used by Blizzard in most of their games (e.g., Diablo, Diablo 2, StarCraft, WarCraft 3, and World of Warcraft).
Remove the block_open_offset() and block_close_offset() public functions, effectively everybody should use *block_read() only for block processing and this function should handle low-level block processing itself.
Remove the block_open_offset() and block_close_offset() public functions, effectively everybody should use *block_read() only for block processing and this function should handle low-level block processing itself.