From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Tue, 13 Aug 2013 09:42:41 +0000 (+0200)
Subject: Warn on large Metacube blocks.
X-Git-Tag: 1.0.0~30
X-Git-Url: https://git.sesse.net/?p=cubemap;a=commitdiff_plain;h=8b466d2b206f26aedf802b06fe93ba1b67960c93;hp=9ec4c94b5d2071b1eacfe09f1cf99824bb8e3868

Warn on large Metacube blocks.
---

diff --git a/httpinput.cpp b/httpinput.cpp
index 6de67b2..c346a14 100644
--- a/httpinput.cpp
+++ b/httpinput.cpp
@@ -458,6 +458,11 @@ void HTTPInput::process_data(char *ptr, size_t bytes)
 		uint32_t size = ntohl(hdr->size);
 		uint32_t flags = ntohl(hdr->flags);
 
+		if (size > 65535) {
+			log(WARNING, "[%s] Metacube block of %x bytes (flags=%x); corrupted header?",
+				url.c_str(), size, flags);
+		}
+
 		// See if we have the entire block. If not, wait for more data.
 		if (pending_data.size() < sizeof(metacube_block_header) + size) {
 			return;