dpiDataBuffer__toOracleNumberFromText overruns 1 byte for a negative number whose number of digits is 39. · Issue #67 · oracle/odpi (original) (raw)

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Description

When a negative number whose number of digits is 39 such as -123456789012345678901234567890123456789 is converted to an Oracle number, dpiDataBuffer__toOracleNumberFromText() overruns 1 byte.

How to check it.

1. Change here as follows.
   if (appendSentinel) {
   target = 102;
   fprintf(stderr, "offset = %d\n", target - (uint8_t)oracleValue);
   }
2. Download this file and run it.
   Edited: The posted file doesn't provide the issue. Change a number in the file as my next post to reproduce it.

The program prints offset = 22. So the sentinel 102 was written at 23th byte. However the size of Oracle number is 22.