- GetIfEntry, GetIfTable and GetNumberOfInterfaces answer from the host's interfaces. GetIfEntry names one by the index the record handed in carries, GetIfTable puts the rows behind a count, and a table that does not fit is refused with ERROR_INSUFFICIENT_BUFFER and the size it needs.
- The interface walk moved out of host_api.cpp into interfaces.cpp, so the records GetAdaptersAddresses reports and the rows these calls report come from one enumeration of the host rather than two.
- interfaces_test checks the record against the MIB_IFROW offsets Windows declares and the cutting of a long name. The new guest fixture interface_client.c reads the tables through the runtime, in 64-bit and 32-bit builds: it checks that the count, the rows and GetIfEntry agree, that a sorted table lists the rows by index, and that an unknown index and a short table fail as Windows fails them.
Assisted-by: Claude Code:deepseek-v4.1-flash-1017
AI-Scope: Read the MIB_IFROW and MIB_IFTABLE layouts, moved the interface enumeration into interfaces.cpp, wrote the three handlers and both tests, and checked them with ctest (native_interface_table_contract, native_interface_table_client, native_interface_table_client_x32).
