diff options
Diffstat (limited to 'contrib/bloom/blutils.c')
| -rw-r--r-- | contrib/bloom/blutils.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/contrib/bloom/blutils.c b/contrib/bloom/blutils.c index b86f51fb825..f301f415ab2 100644 --- a/contrib/bloom/blutils.c +++ b/contrib/bloom/blutils.c @@ -177,7 +177,7 @@ myRand() /* * Compute x = (7^5 * x) mod (2^31 - 1) * without overflowing 31 bits: - * (2^31 - 1) = 127773 * (7^5) + 2836 + * (2^31 - 1) = 127773 * (7^5) + 2836 * From "Random number generators: good ones are hard to find", * Park and Miller, Communications of the ACM, vol. 31, no. 10, * October 1988, p. 1195. @@ -370,8 +370,11 @@ adjustBloomOptions(BloomOptions *opts) /* Default length of bloom filter is 5 of 16-bit integers */ if (opts->bloomLength <= 0) opts->bloomLength = 5; - else - opts->bloomLength = opts->bloomLength; + else if (opts->bloomLength > MAX_BLOOM_LENGTH) + ereport(ERROR, + (errcode(ERRCODE_INVALID_PARAMETER_VALUE), + errmsg("length of bloom signature (%d) is greater than maximum %d", + opts->bloomLength, MAX_BLOOM_LENGTH))); /* Check singnature length */ for (i = 0; i < INDEX_MAX_KEYS; i++) @@ -382,7 +385,7 @@ adjustBloomOptions(BloomOptions *opts) * with 2 bits default. */ if (opts->bitSize[i] <= 0 - || opts->bitSize[i] >= opts->bloomLength * sizeof(SignType)) + || opts->bitSize[i] >= opts->bloomLength * sizeof(SignType) * BITS_PER_BYTE) opts->bitSize[i] = 2; } } |