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Fix the computation of the maximum array bound for the decoding array

This commit is contained in:
A.J. Beamon 2022-09-20 14:49:22 -07:00
parent 22e24582f1
commit 11a4f8a672
1 changed files with 2 additions and 2 deletions
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4
contrib/libb64/cdecode.c
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@ -12,9 +12,9 @@ int base64_decode_value(int value_in) {
-1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 };
static const int decoding_size = sizeof(decoding);
static const int decoding_size = sizeof(decoding) / sizeof(decoding[0]);
value_in -= 43;
if (value_in < 0 || value_in > decoding_size)
if (value_in < 0 || value_in >= decoding_size)
return -1;
return decoding[value_in];
}