wehub-resource-sync
72 lines
2.2 KiB
Rust
72 lines
2.2 KiB
Rust
//! Verifies the read_file non-regular-file fix: reading a directory or an
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//! unbounded special file must return a CLEAN error and NOT poison the agent
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//! connection (previously a dir read bricked the machine; /dev/zero hung).
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use smolvm::embedded::{EmbeddedRuntime, MachineSpec};
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use smolvm::VmResources;
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use std::time::Duration;
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fn main() {
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let rt = EmbeddedRuntime::new().expect("runtime");
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let name = "readfile-fix-test";
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let _ = rt.create_machine(MachineSpec {
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name: name.into(),
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mounts: vec![],
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ports: vec![],
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resources: VmResources {
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cpus: 1,
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memory_mib: 512,
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network: false,
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..Default::default()
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},
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persistent: false,
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});
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rt.start_machine(name).expect("start");
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let echo = |label: &str| match rt.exec(
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name,
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vec!["echo".into(), label.into()],
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vec![],
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None,
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Some(Duration::from_secs(10)),
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) {
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Ok((code, out, _)) => println!(
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" {label}: HEALTHY exit={code} out={:?}",
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String::from_utf8_lossy(&out).trim()
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),
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Err(e) => println!(" {label}: POISONED → {e}"),
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};
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echo("before");
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match rt.read_file(name, "/tmp") {
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Ok(b) => println!("readFile(/tmp dir): UNEXPECTED ok ({} bytes)", b.len()),
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Err(e) => println!("readFile(/tmp dir): clean error → {e}"),
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}
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echo("after-dir");
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match rt.read_file(name, "/dev/zero") {
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Ok(b) => println!("readFile(/dev/zero): UNEXPECTED ok ({} bytes)", b.len()),
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Err(e) => println!("readFile(/dev/zero): clean error → {e}"),
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}
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echo("after-devzero");
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// sanity: a real file still reads
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let _ = rt.exec(
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name,
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vec![
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"sh".into(),
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"-c".into(),
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"echo content > /tmp/real.txt".into(),
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],
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vec![],
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None,
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None,
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);
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match rt.read_file(name, "/tmp/real.txt") {
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Ok(b) => println!(
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"readFile(/tmp/real.txt): ok → {:?}",
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String::from_utf8_lossy(&b).trim()
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),
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Err(e) => println!("readFile(/tmp/real.txt): UNEXPECTED error → {e}"),
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}
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rt.delete_machine(name).expect("delete");
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}
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