CodeSampleX

Sample

wasi 0.11.1+wasi-snapshot-preview1: wasi::FILETYPE_CHARACTER_DEVICE

Verified sample for cargo wasi 0.11.1+wasi-snapshot-preview1: wasi::FILETYPE_CHARACTER_DEVICE. The contract ran on rust 1 · linux alpine/x64 · docker and…

sha256:dca33460e87f7b71d4c0ea97a23b1a8c3ab88423b3744ac8d2969c54175df121

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux · alpine · musl x64 cargo

Verification-run environments

Environment Contract Stages Run
rust 1 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · cargo@1rust:1-alpine@sha256:a10e64dd139b…
2026-09-19

Case

HOW
Goal
verify wasi::FILETYPE_CHARACTER_DEVICE in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1
Packages
Symbols
  • wasi::FILETYPE_CHARACTER_DEVICE
Created
2026-09-18T05:30:20Z

Contract

  1. FILETYPE_CHARACTER_DEVICE has raw identifier value 2
  2. FILETYPE_CHARACTER_DEVICE has name CHARACTER_DEVICE
  3. FILETYPE_CHARACTER_DEVICE has descriptive message for character device inode
  4. FILETYPE_CHARACTER_DEVICE implements Copy, Clone, Eq, Ord and Hash
  5. FILETYPE_CHARACTER_DEVICE is distinct from other Filetype variants

Files

  • Cargo.lock
  • Cargo.toml
  • PROMPT.md
  • csx.json
  • spec.json
  • src/lib.rs
  • test/contract.rs

Download the source artifact (tar.gz)

Source

Cargo.lock
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4

[[package]]
name = "sample-wasi"
version = "1.0.0"
dependencies = [
 "wasi",
]

[[package]]
name = "wasi"
version = "0.11.1+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
Cargo.toml
[package]
name = "sample-wasi"
version = "1.0.0"
edition = "2021"
publish = false

[dependencies]
wasi = "=0.11.1+wasi-snapshot-preview1"

[[bin]]
name = "contract"
path = "test/contract.rs"
PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify wasi::FILETYPE_CHARACTER_DEVICE in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1
Demonstrate these symbols/APIs:
  - wasi::FILETYPE_CHARACTER_DEVICE

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:83dfc6cae7893c3fce7145e695a996907f3c2bb916cba069d21ad15008298f97","contract":["FILETYPE_CHARACTER_DEVICE has raw identifier value 2","FILETYPE_CHARACTER_DEVICE has name CHARACTER_DEVICE","FILETYPE_CHARACTER_DEVICE has descriptive message for character device inode","FILETYPE_CHARACTER_DEVICE implements Copy, Clone, Eq, Ord and Hash","FILETYPE_CHARACTER_DEVICE is distinct from other Filetype variants"],"goal":"verify wasi::FILETYPE_CHARACTER_DEVICE in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1","kind":"HOW","packages":["pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1"],"schemaVersion":1,"symbols":["wasi::FILETYPE_CHARACTER_DEVICE"]},"contractCommand":["cargo","run","--offline"],"environment":{"arch":"x64","distro":"alpine","ecosystem":"cargo","libc":"musl","os":"linux","packageManager":"cargo","schemaVersion":1},"license":"MIT-0","packages":["pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1"],"schemaVersion":1,"subject":"pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1","symbols":["wasi::FILETYPE_CHARACTER_DEVICE"],"verifierAdapter":"cargo@1"}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify wasi::FILETYPE_CHARACTER_DEVICE in pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1",
  "kind": "HOW",
  "packages": [
    "pkg:cargo/wasi@0.11.1+wasi-snapshot-preview1"
  ],
  "symbols": [
    "wasi::FILETYPE_CHARACTER_DEVICE"
  ]
}
src/lib.rs
//! Clean-room verification sample for wasi::FILETYPE_CHARACTER_DEVICE.

pub use wasi::*;
test/contract.rs
use std::collections::HashSet;
use wasi::{
    Filetype, FILETYPE_BLOCK_DEVICE, FILETYPE_CHARACTER_DEVICE, FILETYPE_DIRECTORY,
    FILETYPE_REGULAR_FILE, FILETYPE_SOCKET_DGRAM, FILETYPE_SOCKET_STREAM,
    FILETYPE_SYMBOLIC_LINK, FILETYPE_UNKNOWN,
};

fn main() {
    // 1. FILETYPE_CHARACTER_DEVICE has raw identifier value 2
    let ft = FILETYPE_CHARACTER_DEVICE;
    assert_eq!(ft.raw(), 2);

    // 2. FILETYPE_CHARACTER_DEVICE has name CHARACTER_DEVICE
    assert_eq!(ft.name(), "CHARACTER_DEVICE");

    // 3. FILETYPE_CHARACTER_DEVICE has descriptive message for character device inode
    assert_eq!(
        ft.message(),
        "The file descriptor or file refers to a character device inode."
    );

    // 4. FILETYPE_CHARACTER_DEVICE implements Copy, Clone, Eq, Ord and Hash
    let copied: Filetype = ft;
    assert_eq!(copied, ft);
    assert_eq!(copied.cmp(&ft), std::cmp::Ordering::Equal);

    let mut set = HashSet::new();
    set.insert(ft);
    assert!(set.contains(&copied));

    let debug_str = format!("{:?}", ft);
    assert!(debug_str.contains("code: 2"));
    assert!(debug_str.contains("CHARACTER_DEVICE"));

    // 5. FILETYPE_CHARACTER_DEVICE is distinct from other Filetype variants
    assert_ne!(ft, FILETYPE_UNKNOWN);
    assert_ne!(ft, FILETYPE_BLOCK_DEVICE);
    assert_ne!(ft, FILETYPE_DIRECTORY);
    assert_ne!(ft, FILETYPE_REGULAR_FILE);
    assert_ne!(ft, FILETYPE_SOCKET_DGRAM);
    assert_ne!(ft, FILETYPE_SOCKET_STREAM);
    assert_ne!(ft, FILETYPE_SYMBOLIC_LINK);
    assert!(ft > FILETYPE_UNKNOWN);
    assert!(ft > FILETYPE_BLOCK_DEVICE);
    assert!(ft < FILETYPE_DIRECTORY);

    println!("All wasi::FILETYPE_CHARACTER_DEVICE contract assertions passed.");
}

Origin Seeder

anonymous