1eebc65c9e
Currently we don't actually sandbox the memory at all, so you can do evil things like read and write the host's memory. We also don't support growing memory or cranelift-compatible ABI that passes the memory offset as an argument. We also always immediately allocate the buffer when encountering a memory section, there is preliminary support for translating a buffer which can then have the real offset replaced using relocations (and returning a different type when doing so) but I haven't written the code that actually does relocation so it doesn't work yet.
34 lines
764 B
Rust
34 lines
764 B
Rust
use capstone;
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use wasmparser::BinaryReaderError;
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#[derive(Fail, PartialEq, Eq, Clone, Debug)]
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pub enum Error {
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#[fail(display = "Disassembler error: {}", _0)]
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Disassembler(String),
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#[fail(display = "Assembler error: {}", _0)]
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Assembler(String),
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#[fail(display = "Input error: {}", _0)]
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Input(String),
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}
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impl From<BinaryReaderError> for Error {
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fn from(e: BinaryReaderError) -> Self {
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let BinaryReaderError { message, offset } = e;
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Error::Input(format!("At wasm offset {}: {}", offset, message))
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}
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}
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impl From<!> for Error {
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fn from(other: !) -> Self {
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other
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}
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}
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impl From<capstone::Error> for Error {
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fn from(e: capstone::Error) -> Self {
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Error::Disassembler(e.to_string())
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}
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}
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