21 lines
733 B
Rust
21 lines
733 B
Rust
use std::io::{self, Read, Write};
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use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
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pub fn read_string<R: Read>(mut reader: R) -> io::Result<String> {
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// Strings are written as <littleendian> len + bytes
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let str_len = reader.read_u64::<LittleEndian>()?;
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let mut str_bytes = vec![0; str_len as usize];
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reader.read_exact(&mut str_bytes)?;
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let str = String::from_utf8(str_bytes).map_err(|e| {
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io::Error::new(io::ErrorKind::InvalidData, e.to_string())
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})?;
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Ok(str)
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}
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pub fn write_string<W: Write>(mut writer: W, s: &String) -> io::Result<()> {
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// Strings are written as len + utf8
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writer.write_u64::<LittleEndian>(s.as_bytes().len() as u64)?;
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writer.write_all(s.as_bytes())
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} |