From e5404d4bf621c1e8bbdfd47381ce3f609d10b20a Mon Sep 17 00:00:00 2001
From: Sebastian Lackner <sebastian@fds-team.de>
Date: Fri, 29 Apr 2016 17:55:43 +0200
Subject: [PATCH] mscoree: Avoid buffer overflow when mono print handler
 returns huge string at once.

Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Vincent Povirk <vincent@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
---
 dlls/mscoree/metahost.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dlls/mscoree/metahost.c b/dlls/mscoree/metahost.c
index 252740d29b3..30b9739e70b 100644
--- a/dlls/mscoree/metahost.c
+++ b/dlls/mscoree/metahost.c
@@ -272,7 +272,13 @@ static void CDECL mono_shutdown_callback_fn(MonoProfiler *prof)
 
 static void CDECL mono_print_handler_fn(const char *string, INT is_stdout)
 {
-    wine_dbg_printf("%s", string);
+    const char *p;
+    for (; *string; string = p)
+    {
+        if ((p = strstr(string, "\n"))) p++;
+        else p = string + strlen(string);
+        wine_dbg_printf("%.*s", (int)(p - string), string);
+    }
 }
 
 static HRESULT CLRRuntimeInfo_GetRuntimeHost(CLRRuntimeInfo *This, RuntimeHost **result)