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Enforce maximum size of 400Mp (QOI_PIXELS_MAX)

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This commit is contained in:
Ivan Smirnov 2021-12-29 16:00:16 +03:00
commit 4d0d760f92
4 changed files with 14 additions and 3 deletions
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7
src/error.rs
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@ -2,12 +2,13 @@ use std::error::Error as StdError;
use std::fmt::{self, Display};
use std::result::Result as StdResult;
use crate::consts::QOI_MAGIC;
use crate::consts::{QOI_MAGIC, QOI_PIXELS_MAX};
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum Error {
InvalidChannels { channels: u8 },
EmptyImage { width: u32, height: u32 },
ImageTooLarge { width: u32, height: u32 },
BadEncodingDataSize { size: usize, expected: usize },
InputBufferTooSmall { size: usize, required: usize },
OutputBufferTooSmall { size: usize, required: usize },
@ -27,6 +28,10 @@ impl Display for Error {
Self::EmptyImage { width, height } => {
write!(f, "image contains no pixels: {}x{}", width, height)
}
Self::ImageTooLarge { width, height } => {
let mp = QOI_PIXELS_MAX / 1_000_000;
write!(f, "image is too large: {}x{} (max={}Mp)", width, height, mp)
}
Self::BadEncodingDataSize { size, expected } => {
write!(f, "bad data size when encoding: {} (expected: {})", size, expected)
}