msg_parser 0.3.1

Outlook Email Message (.msg) parser
Documentation 
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impl<'ole> super::ole::Reader<'ole> {
    pub(crate) fn read_sector(&self, sector_index: usize) -> Result<&[u8], super::error::Error> {
        let result: Result<&[u8], super::error::Error>;
        let sector_size = self.sec_size.unwrap();
        let offset = sector_size * sector_index;
        let max_size = offset + sector_size;

        let body_size: usize = if let Some(ref body) = self.body {
            body.len()
        } else {
            0
        };

        // Check if the sector has already been read
        let sector: &[u8];
        if body_size >= max_size {
            let body = self.body.as_ref().unwrap();
            sector = &body[offset..offset + sector_size];
            result = Ok(sector);
        } else {
            result = Err(super::error::Error::BadSizeValue("File is too short"));
        }

        result
    }
}