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stb_image: JPEG: Accept DNL segment

pull/423/head
Jeremy Sawicki 2017-03-03 00:13:27 -08:00
parent 59a5a155b4
commit 2219a6da29
1 changed files with 5 additions and 0 deletions
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5
stb_image.h
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@ -3129,6 +3129,11 @@ static int stbi__decode_jpeg_image(stbi__jpeg *j)
}
// if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0
}
} else if (stbi__DNL(m)) {
int Ld = stbi__get16be(j->s);
stbi__uint32 NL = stbi__get16be(j->s);
if (Ld != 4) stbi__err("bad DNL len", "Corrupt JPEG");
if (NL != j->s->img_y) stbi__err("bad DNL height", "Corrupt JPEG");
} else {
if (!stbi__process_marker(j, m)) return 0;
}