From 19d30c170e65c6a2aa66404333b266c78fd74bc6 Mon Sep 17 00:00:00 2001
From: Marcus Brinkmann <m.brinkmann@semantics.de>
Date: Thu, 17 Nov 2016 13:43:11 +0100
Subject: [PATCH 1/3] Test for libtiff, n_frames and seek.

---
 Tests/test_file_libtiff.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py
index 6e40d4b37..04b36f8df 100644
--- a/Tests/test_file_libtiff.py
+++ b/Tests/test_file_libtiff.py
@@ -399,6 +399,19 @@ class TestFileLibTiff(LibTiffTestCase):
 
         TiffImagePlugin.READ_LIBTIFF = False
 
+    def test_multipage_nframes(self):
+        # issue #862
+        TiffImagePlugin.READ_LIBTIFF = True
+        im = Image.open('Tests/images/multipage.tiff')
+        frames = im.n_frames
+        self.assertEqual(frames, 3)
+        for idx in range(frames):
+            im.seek(0)
+            # Should not raise ValueError: I/O operation on closed file
+            im.load()
+
+        TiffImagePlugin.READ_LIBTIFF = False
+
     def test__next(self):
         TiffImagePlugin.READ_LIBTIFF = True
         im = Image.open('Tests/images/hopper.tif')
@@ -521,7 +534,7 @@ class TestFileLibTiff(LibTiffTestCase):
         except:
             self.fail("Should not get permission error here")
 
-    
+
 
 
 if __name__ == '__main__':

From 4e8778a0a077b11a2ade7009ff87f2476ec66a48 Mon Sep 17 00:00:00 2001
From: Marcus Brinkmann <m.brinkmann@semantics.de>
Date: Thu, 17 Nov 2016 13:47:44 +0100
Subject: [PATCH 2/3] Do not close fp in libtiff case prematurely.

---
 PIL/TiffImagePlugin.py | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/PIL/TiffImagePlugin.py b/PIL/TiffImagePlugin.py
index d442c3766..03203c2eb 100644
--- a/PIL/TiffImagePlugin.py
+++ b/PIL/TiffImagePlugin.py
@@ -1096,10 +1096,6 @@ class TiffImageFile(ImageFile.ImageFile):
 
         self.tile = []
         self.readonly = 0
-        # libtiff closed the fp in a, we need to close self.fp, if possible
-        if hasattr(self.fp, 'close'):
-            if not self.__next:
-                self.fp.close()
         self.fp = None  # might be shared
 
         if err < 0:

From 5bab56ca16f6b93d457de9cd592a8b4be78a0f2b Mon Sep 17 00:00:00 2001
From: Marcus Brinkmann <m.brinkmann@semantics.de>
Date: Thu, 17 Nov 2016 15:37:50 +0100
Subject: [PATCH 3/3] Fix test.

---
 Tests/test_file_libtiff.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py
index 04b36f8df..bf1840e1e 100644
--- a/Tests/test_file_libtiff.py
+++ b/Tests/test_file_libtiff.py
@@ -370,7 +370,8 @@ class TestFileLibTiff(LibTiffTestCase):
         fn = im.fp.fileno()
 
         os.fstat(fn)
-        im.load()  # this should close it.
+        im.load()
+        im.close() # this should close it.
         self.assertRaises(OSError, lambda: os.fstat(fn))
         im = None  # this should force even more closed.
         self.assertRaises(OSError, lambda: os.fstat(fn))