Added checks for MaxRecursion#1264
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There is presently no limit for the max-recursion scan option. Selecting a max-recursion limit that is too high will cause confusing errors. E.g.: /home/aragusa/install.alz/bin/clamscan -d clamav.hdb . --max-recursion=9999999999 LibClamAV Error: fmap_fd: Attempted to get fd for NULL fmap /home/aragusa/issue/clamav.hdb: Can't allocate memory ERROR LibClamAV Error: fmap_fd: Attempted to get fd for NULL fmap /home/aragusa/issue/test.sh: Can't allocate memory ERROR This commit prevents setting the max-recursion limit higher than 100.
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This change sets a limit on the max-recursion config option. Users will no longer be able to set max-recursion higher than 100.
Setting max-recursion to high may memory allocation errors on startup and attempting to scan a file with too many layers of recursion may cause a stack overflow crash.