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Fix lookup and overflow in simplefs_ext_search #86

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Fix lookup and overflow in simplefs_ext_search #86

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5 changes: 3 additions & 2 deletions extent.c
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Original file line number Diff line number Diff line change
Expand Up @@ -64,9 +64,10 @@ uint32_t simplefs_ext_search(struct simplefs_file_ei_block *index,
*/
end_block = index->extents[end].ee_block;
end_len = index->extents[end].ee_len;
if (iblock >= end_block && iblock < end_len)

if (iblock >= end_block && iblock < end_block + end_len)
return end;
if (boundary < SIMPLEFS_MAX_EXTENTS)
return boundary;
return boundary;
return -1;
}
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