Struct UserCString 

pub struct UserCString {
    addr: usize,
}

A pointer to a null-terminated C-style string in user-space.

This struct provides a safe abstraction for reading strings from user-space. It iterates over the bytes until a null-terminator (0x00) is encountered, converting the byte sequence into a valid UTF-8 String.

Fields

addr: usize

Implementations

impl UserCString

pub fn new(addr: usize) -> Self

Creates a new UserCString instance with the given user-space address.

pub fn read(self) -> Result<String, KernelError>

Reads a null-terminated string from the user-space address.

This function iterates over user-space memory, collecting bytes until a null terminator (0x00) is found. It then attempts to convert the byte sequence into a UTF-8 String.

Returns Some(String) if successful, otherwise None if the operation fails.

Trait Implementations

impl Debug for UserCString

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

Formats the value using the given formatter.

impl Ord for UserCString

fn cmp(&self, other: &UserCString) -> Ordering

This method returns an [Ordering] between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for UserCString

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for UserCString

fn partial_cmp(&self, other: &UserCString) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for UserCString

impl StructuralPartialEq for UserCString