fix(registry): coreutils stat/chmod/ls show real permission bits#266
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fix(registry): coreutils stat/chmod/ls show real permission bits#266NathanFlurry wants to merge 2 commits into
NathanFlurry wants to merge 2 commits into
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Teach the VM's filesystem layer POSIX permission semantics so native C tools (vim, coreutils) behave like Linux: - wasi-libc patch exposes host permission bits through new host_fs.fd_mode / path_mode imports so stat/fstat/lstat return real mode bits (0644/0755) - chmod/fchmod implemented via the host_fs bridge (previously ENOSYS) - access() reflects the mode's rwx bits (X_OK no longer always succeeds) - truncate/ftruncate update the size stat reports; fd metadata stays coherent - fixes an intermittent EFAULT on create/write under wasm heap growth This fixes vim opening every file readonly and 'touch: Bad address', with a comprehensive fs_probe.c that is diffed 1:1 against native Linux.
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🚅 Deployed to the secure-exec-pr-266 environment in secure-exec
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Summary
host_fsmode/chmod imports.Validation
cd registry/native && make cmd/stat cmd/chmod cmd/ls cmd/touchjust registry-build coreutilscd registry/native && make clean-vendor && make vendor && ./scripts/patch-vendor.shjust shelltmux proof:statshows 0644,chmod 600,stat/stat -cshow 0600, andls -lshows-rw-------.cd agentos/packages/core && AGENTOS_WASM_SNAPSHOT_RUNNER=off AGENTOS_SIDECAR_BIN=/home/nathan/workspaces/shell/agentos/target/debug/agentos-sidecar pnpm exec vitest run tests/fs-native-parity.test.ts tests/vim-render.test.ts