FA-3662 / Binary formats / Member archive
A byte-count prefix is trusted without checking body size · case 02
A byte-count prefix is trusted without checking body size.
Case contract
Decode one-byte length and exact payload; return payload bytes or None.
Why this case matters
A local executable model for consumers of structured text; oracle values are authored literals, not outputs copied from the repaired implementation.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| boundary 1 | [65] | null | Failed |
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