From e9f25ddd0063f7ea65595178d04370d27344305c Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Wed, 9 Nov 2016 11:09:16 +0100
Subject: Avoid ugly exception in log on unknown inv type

It is unexpected behavior for `ToString` to raise an exception. It
is expected to do a best-effort attempt at formatting but never fail.

Catch the exception and simply print unknown inv types as hexadecimal.

Fixes #9110.
---
 src/protocol.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/protocol.cpp b/src/protocol.cpp
index 54ad62b1a2..87d6e06848 100644
--- a/src/protocol.cpp
+++ b/src/protocol.cpp
@@ -181,7 +181,11 @@ std::string CInv::GetCommand() const
 
 std::string CInv::ToString() const
 {
-    return strprintf("%s %s", GetCommand(), hash.ToString());
+    try {
+        return strprintf("%s %s", GetCommand(), hash.ToString());
+    } catch(const std::out_of_range &) {
+        return strprintf("0x%08x %s", type, hash.ToString());
+    }
 }
 
 const std::vector<std::string> &getAllNetMessageTypes()
-- 
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