ASN1_item_unpack_ex
p7s = ASN1_item_unpack_ex(p12->authsafes->d.data,
return ASN1_item_unpack_ex(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
ret = ASN1_item_unpack_ex(bag->value.bag->value.octet,
ret = ASN1_item_unpack_ex(bag->value.bag->value.octet,
void *ASN1_item_unpack_ex(const ASN1_STRING *oct, const ASN1_ITEM *it,