Fix character boundary issues in preview1 host adapter #7011
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This fixes two separate issues in the preview1-to-preview2 host-side adapter in the `wasmtime-wasi` crate. Both instances were copying a truncated string to the guest program but the truncation was happening in the middle of a unicode character so truncation now happens on bytes instead of a string.
Try to weed out any accidental string-related issues for the future.
pchickey
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Sep 20, 2023
eduardomourar
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Sep 22, 2023
…nce#7011) * Fix character boundary issues in preview1 host adapter This fixes two separate issues in the preview1-to-preview2 host-side adapter in the `wasmtime-wasi` crate. Both instances were copying a truncated string to the guest program but the truncation was happening in the middle of a unicode character so truncation now happens on bytes instead of a string. * Update `write_bytes` to take `&[u8]` Try to weed out any accidental string-related issues for the future.
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This fixes two separate issues in the preview1-to-preview2 host-side adapter in the
wasmtime-wasicrate. Both instances were copying a truncated string to the guest program but the truncation was happening in the middle of a unicode character so truncation now happens on bytes instead of a string.Closes #7006