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-rw-r--r--plugins/mod_s2s/mod_s2s.lua4
1 files changed, 3 insertions, 1 deletions
diff --git a/plugins/mod_s2s/mod_s2s.lua b/plugins/mod_s2s/mod_s2s.lua
index b9c13ef2..42998c30 100644
--- a/plugins/mod_s2s/mod_s2s.lua
+++ b/plugins/mod_s2s/mod_s2s.lua
@@ -327,7 +327,9 @@ function stream_callbacks._streamopened(session, attr)
-- Send a reply stream header
-- Validate to/from
- local to, from = nameprep(attr.to), nameprep(attr.from);
+ local to, from = attr.to, attr.from;
+ if to then to = nameprep(attr.to); end
+ if from then from = nameprep(attr.from); end
if not to and attr.to then -- COMPAT: Some servers do not reliably set 'to' (especially on stream restarts)
session:close({ condition = "improper-addressing", text = "Invalid 'to' address" });
return;