File fix-zero-byte-file-upload-via-ssl.patch of Package lftp.10482

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File fix-zero-byte-file-upload-via-ssl.patch of Package lftp.10482

From b934dbba0cb3a2b367549d0e17131538b90acbc5 Mon Sep 17 00:00:00 2001
From: "Alexander V. Lukyanov" <lavv17f@gmail.com>
Date: Tue, 20 Feb 2018 21:38:30 +0300
Subject: [PATCH] BufferSSL: handshake ssl even if we have no data to write
 (fix #420)

---
 src/buffer_ssl.cc | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/src/buffer_ssl.cc b/src/buffer_ssl.cc
index 5f466bd2..9e701c22 100644
--- a/src/buffer_ssl.cc
+++ b/src/buffer_ssl.cc
@@ -34,13 +34,25 @@ int IOBufferSSL::Do()
    if(Done() || Error())
       return m;
 
-   if(mode==PUT && Size()==0 && ssl->handshake_done && !eof)
-      return m;
-
-   // cannot use want_mask before trying to read/write, since ssl can be shared
-   if(!ssl->handshake_done || eof || Ready(ssl->fd,dir_mask()))
-      m|=super::Do();
-
+   if(mode==PUT && Size()==0)
+   {
+      // nothing to write, but may need to do handshake
+      if(!ssl->handshake_done)
+      {
+	 if(Put_LL("",0)<0)
+	    return MOVED;
+	 if(ssl->handshake_done && eof)
+	    ssl->shutdown();
+      }
+      if(ssl->handshake_done && !eof)
+	 return m;
+   }
+   else
+   {
+      // cannot use want_mask before trying to read/write, since ssl can be shared
+      if(!ssl->handshake_done || eof || Ready(ssl->fd,dir_mask()))
+	 m|=super::Do();
+   }
    Block(ssl->fd,block_mask());
    return m;
 }

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File fix-zero-byte-file-upload-via-ssl.patch of Package lftp.10482

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