From 1bc460a64a0de0766d21f4f8660c6597bc410cbc Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Thu, 21 Jan 2016 15:37:08 +0000
Subject: Cutthrough: Fix bug with dot-only line

---
 src/src/receive.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/src/receive.c b/src/src/receive.c
index f2a94e0f8..a479e12cd 100644
--- a/src/src/receive.c
+++ b/src/src/receive.c
@@ -835,7 +835,15 @@ while ((ch = (receive_getc)()) != EOF)
       ch_state = 4;
       continue;
       }
-    ch_state = 1;                       /* The dot itself is removed */
+    /* The dot was removed at state 3. For a doubled dot, here, reinstate
+    it to cutthrough. The current ch, dot or not, is passed both to cutthrough
+    and to file below. */
+    if (ch == '.')
+      {
+      uschar c= ch;
+      (void) cutthrough_puts(&c, 1);
+      }
+    ch_state = 1;
     break;
 
     case 4:                             /* After [CR] LF . CR */
-- 
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