I think there is an error in the function smiFreeData in lib/data.c. For a MIB of mine, smidump had a segmentation fault there, while the memory was being freed on exit. The code is:
if (objectPtr->typePtr) { if ((objectPtr->typePtr->export.basetype == SMI_BASETYPE_OCTETSTRING || objectPtr->typePtr->export.basetype == SMI_BASETYPE_BITS)) { smiFree(objectPtr->export.value.value.ptr);
It seems to be the case that for SMI_BASETYPE_OCTETSTRING, the contents is not a pointer, but an integer, and shouldn't be freed with smiFree. Then the correct code would be:
if (objectPtr->typePtr) { if ((objectPtr->typePtr->export.basetype == SMI_BASETYPE_OCTETSTRING)) { smiFree(objectPtr->export.value.value.ptr);