Struct syscallz::Comparator

pub struct Comparator { /* private fields */ }

A compare rule to restrict an argument syscall

Implementations

impl Comparator

pub fn new(arg: u32, op: Cmp, datum_a: u64, datum_b: Option<u64>) -> Self

Set a constraint for a syscall argument.

• The first argument is the syscall argument index, 0 would be the first argument.
• The second argument selects a compare operation like equals-to, greather-than, etc.
• The third argument is the value it’s going to be compared to.
• The forth argument is only used when using Cmp::MaskedEq, where datum_a is used as a mask and datum_b is the value the result is compared to.

Trait Implementations

impl Clone for Comparator

fn clone(&self) -> Comparator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Comparator

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

Formats the value using the given formatter.

impl From<Comparator> for scmp_arg_cmp

fn from(cmp: Comparator) -> scmp_arg_cmp

Converts to this type from the input type.