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EnvGuard

Struct EnvGuard 

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pub struct EnvGuard { /* private fields */ }
Expand description

The policy applied to a set of secrets before they reach a child.

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impl EnvGuard

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pub fn strict() -> Self

The default policy: loader-controlling names are refused.

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pub fn permissive() -> Self

The policy --allow-unsafe-env selects.

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pub fn check(self, name: &str) -> Result<(), GuardError>

Checks a single name against the policy.

§Errors

Returns GuardError::LoaderControlled for a name the loader or a language runtime interprets, unless the guard is permissive.

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pub fn check_all<'a>( self, names: impl IntoIterator<Item = &'a str>, ) -> Result<(), GuardError>

Checks every name, failing on the first refusal.

Fails the whole launch rather than dropping the offending variable: a child started with a silently missing variable is a debugging problem, and a child started with a silently present one is a breach.

§Errors

See EnvGuard::check.

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impl Clone for EnvGuard

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fn clone(&self) -> EnvGuard

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for EnvGuard

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impl Debug for EnvGuard

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for EnvGuard

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fn default() -> EnvGuard

Returns the “default value” for a type. Read more
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impl Eq for EnvGuard

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impl PartialEq for EnvGuard

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fn eq(&self, other: &EnvGuard) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for EnvGuard

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.