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helpers: Report internal error for failing buffer allocation

This commit is contained in:
Paweł Bylica 2019-07-04 12:18:54 +02:00
parent 9c4da27dfe
commit 03d0bbeac0
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GPG Key ID: 7A0C037434FE77EF
1 changed files with 15 additions and 3 deletions
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18
include/evmc/helpers.h
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@ -125,6 +125,9 @@ static void evmc_free_result_memory(const struct evmc_result* result)
/// The provided output is copied to memory allocated with malloc()
/// and the evmc_result::release function is set to one invoking free().
///
/// In case of memory allocation failure, the result has all fields zeroed
/// and only evmc_result::status_code is set to ::EVMC_OUT_OF_MEMORY internal error.
///
/// @param status_code The status code.
/// @param gas_left The amount of gas left.
/// @param output_data The pointer to the output.
@ -136,16 +139,25 @@ static inline struct evmc_result evmc_make_result(enum evmc_status_code status_c
{
struct evmc_result result;
memset(&result, 0, sizeof(result));
result.status_code = status_code;
result.gas_left = gas_left;
result.output_size = output_size;
if (output_size != 0)
{
uint8_t* buffer = (uint8_t*)malloc(output_size);
if (!buffer)
{
result.status_code = EVMC_OUT_OF_MEMORY;
return result;
}
memcpy(buffer, output_data, output_size);
result.output_data = buffer;
result.output_size = output_size;
result.release = evmc_free_result_memory;
}
result.status_code = status_code;
result.gas_left = gas_left;
return result;
}