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EVM-C: Limit functionality of output in message 

Do not allow passing debug and error messages in message.output. We should keep the output buffer for passing consensus-critical data only. We still need to design tracing / debugging subsystem for EVM-C. The place of error messages is there.
This commit is contained in:
Paweł Bylica 2017-08-07 18:19:05 +02:00
parent 262161eb42
commit a1fb5e8299
1 changed files with 3 additions and 10 deletions
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13
include/evm.h
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@ -131,21 +131,14 @@ struct evm_result {
/// The amount of gas left after the execution.
///
/// The value is valid only if evm_result::code is ::EVM_SUCCESS
/// or ::EVM_REVERT. In other cases all provided gas is assumed to have been
/// used.
/// If evm_result::code is not ::EVM_SUCCESS nor ::EVM_REVERT
/// the value MUST be 0.
int64_t gas_left;
/// The reference to output data.
///
/// The output contains data coming from RETURN opcode (iff evm_result::code
/// field is ::EVM_SUCCESS) or from REVERT opcode (iff evm_result::code
/// field is ::EVM_REVERT).
///
/// In case the evm_result::code field signals
/// a failure the output MAY contain optional explanation of the failure
/// for debugging or tracing purposes. In case the explanation is provided
/// and contains human-readable text then UTF-8 encoding SHOULD be used.
/// field is ::EVM_SUCCESS) or from REVERT opcode.
///
/// The memory containing the output data is owned by EVM and has to be
/// freed with evm_result::release().