https://git.ruby-lang.org/ruby.git/commit/?id=578bacc471

From 578bacc471fa3fa14f8607fe67adccce21e81657 Mon Sep 17 00:00:00 2001
From: nagachika <nagachika@r...>
Date: Sat, 25 Jul 2020 21:42:20 +0900
Subject: merge revision(s) 5e81e8675a020ecd493620a4ff38db8fcf4b972a: [Backport
 #16780]

	Ignore exceptions when closing data connections [Bug #16780]

	Patch by koshigoe (Masataka SUZUKI). Thanks!

diff --git a/lib/net/ftp.rb b/lib/net/ftp.rb
index d1e545c..610027d 100644
--- a/lib/net/ftp.rb
+++ b/lib/net/ftp.rb
@@ -634,9 +634,9 @@ module Net https://github.com/ruby/ruby/blob/trunk/lib/net/ftp.rb#L634
             while data = conn.read(blocksize)
               yield(data)
             end
-            conn.shutdown(Socket::SHUT_WR)
+            conn.shutdown(Socket::SHUT_WR) rescue nil
             conn.read_timeout = 1
-            conn.read
+            conn.read rescue nil
           ensure
             conn.close if conn
           end
@@ -659,9 +659,9 @@ module Net https://github.com/ruby/ruby/blob/trunk/lib/net/ftp.rb#L659
             while line = conn.gets
               yield(line.sub(/\r?\n\z/, ""), !line.match(/\n\z/).nil?)
             end
-            conn.shutdown(Socket::SHUT_WR)
+            conn.shutdown(Socket::SHUT_WR) rescue nil
             conn.read_timeout = 1
-            conn.read
+            conn.read rescue nil
           ensure
             conn.close if conn
           end
@@ -688,9 +688,9 @@ module Net https://github.com/ruby/ruby/blob/trunk/lib/net/ftp.rb#L688
               conn.write(buf)
               yield(buf) if block_given?
             end
-            conn.shutdown(Socket::SHUT_WR)
+            conn.shutdown(Socket::SHUT_WR) rescue nil
             conn.read_timeout = 1
-            conn.read
+            conn.read rescue nil
           ensure
             conn.close if conn
           end
@@ -724,9 +724,9 @@ module Net https://github.com/ruby/ruby/blob/trunk/lib/net/ftp.rb#L724
               conn.write(buf)
               yield(buf) if block_given?
             end
-            conn.shutdown(Socket::SHUT_WR)
+            conn.shutdown(Socket::SHUT_WR) rescue nil
             conn.read_timeout = 1
-            conn.read
+            conn.read rescue nil
           ensure
             conn.close if conn
           end
diff --git a/version.h b/version.h
index c92be32..a53458d 100644
--- a/version.h
+++ b/version.h
@@ -2,7 +2,7 @@ https://github.com/ruby/ruby/blob/trunk/version.h#L2
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 1
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 111
+#define RUBY_PATCHLEVEL 112
 
 #define RUBY_RELEASE_YEAR 2020
 #define RUBY_RELEASE_MONTH 7
-- 
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