Buffer overflows

api/melissa_api.c, line 594:

memcpy (field_data->name, field_name, MPI_MAX_PROCESSOR_NAME);

field_name is a null-terminated C string that is shorter than MPI_MAX_PROCESSOR_NAME in the heat example (see examples/heat_example/src/heat.c, line 111. Using memcpy will cause a memory over-read for all sufficiently short strings. The fix is to use strncpy:

strncpy(field_data->name, field_name, MPI_MAX_PROCESSOR_NAME);