Method read_cstring_until_null

crates/tinywasm/src/reference.rs:299–307

Reads a C-style string from memory, stopping at the first null byte.

(&self, store: &Store, offset: usize, max_len: usize)

    /// Reads a C-style string from memory, stopping at the first null byte.
    pub fn read_cstring_until_null(&self, store: &Store, offset: usize, max_len: usize) -> Result<CString> {
        let bytes = self.read_vec(store, offset, max_len)?;
        let Some(null) = bytes.iter().position(|byte| *byte == 0) else {
            return Err(crate::Error::Other("Invalid C-style string: missing null terminator".to_string()));
        };

        CString::from_vec_with_nul(bytes[..=null].to_vec())
            .map_err(|e| crate::Error::Other(format!("Invalid C-style string: {e}")))
    }

    /// Reads a UTF-8 string from memory.
    pub fn read_string(&self, store: &Store, offset: usize, len: usize) -> Result<String> {