Handle NULLs in SDKCall string return (Fixes #874) #906
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`SDKCall` has existing semantics that a `-1` retval indicates null, so use that and writes an empty string to the buffer. Consumers can tell the difference between `""` and `NULL` by checking if the return value is `0` or `-1`.
psychonic
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Oct 10, 2018
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Oct 10, 2018
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SDKCallhas existing semantics that a-1retval indicates null, so use that and write an empty string to the buffer.Consumers can tell the difference between
""andNULLby checking if the return value is0or-1.