feat(iroh-dns): fall back to default resolver config on wasi - #1
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hickory-resolver cfg-gates `system_conf::read_system_conf` out on wasi, so `system_config()` does not compile there. Use an empty `ResolverConfig` plus default options instead: resolver construction succeeds, lookups fail. Relay-only deployments (the current wasi consumers) never issue lookups. Part of running iroh on wasm32-wasip2 components (polymorph-components/polymorph-iroh#25).
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The iroh/iroh-relay/iroh-dns deltas now live as reviewable PR branches on the fork (lann/iroh#1 iroh-dns resolver-config fallback, #2 relay connect over the datagram pipe, #3 net_report probe gate), merged into its `polymorph-iroh` branch: upstream main at the same pinned rev (735958f8) plus exactly the patches the vendor tree carried, verified byte-identical before the swap. The three guests consume the branch as a git dependency; iroh-base is patched to the same branch in the blobs and ping-demo guests so iroh and iroh-blobs share one copy of its types (crates-io iroh-base 1.0.3 otherwise coexists as a second, type-incompatible instance). netwatch stays vendored: its upstream is n0-computer/net-tools, not the iroh repo, so it is out of scope for the fork. Verified: all three guests build; iroh-relay-ws Node and browser runs (migration 51ms, phase-2 p50 410-664us), iroh-blobs verified fetches across the migration, and the full ping-demo Playwright suite pass.
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hickory-resolver cfg-gates
system_conf::read_system_confout on wasi, sosystem_config()does not compile for wasm32-wasip2. Use an emptyResolverConfigplus defaultResolverOptsinstead: resolver construction succeeds, lookups fail. Relay-only deployments — the current wasi consumers — never issue lookups.Smallest of the wasi enablement set from polymorph-components/polymorph-iroh#25; staged here for eventual upstreaming. Siblings: the relay datagram-pipe seam and the net_report probe gate. Merged together into the long-lived
polymorph-irohbranch that the component experiments consume.