btfaddr: reject malformed descriptors instead of throwing (#8)

VerifyDescriptor() parses descriptors received from untrusted peers over
Nostr relays. Only json::parse() was guarded; the field extractions
(get<std::string>, get<uint64_t>) ran unguarded, so a descriptor with a
wrong-typed field (e.g. a numeric "pubkey") threw an uncaught
nlohmann::json::type_error -- a remotely triggerable crash vector.

Validate each field's type up front and wrap the whole parse in try/catch
so any malformed descriptor is rejected (return false), never thrown.

0 files changed, 0 insertions, 0 deletions