From cd4832257daf222833ae172b3923268fec5b71b9 Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Sat, 3 Dec 2016 16:50:02 +0000
Subject: [PATCH] * tools/tiffcp.c: replace assert( (bps % 8) == 0 ) by a non
 assert check. Reported by Agostino Sarubbo. Fixes
 http://bugzilla.maptools.org/show_bug.cgi?id=2605

---
 ChangeLog      |  6 ++++++
 tools/tiffcp.c | 17 +++++++++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/tools/tiffcp.c b/tools/tiffcp.c
index 6d96bb89f555..49c9d37125a6 100644
--- a/tools/tiffcp.c
+++ b/tools/tiffcp.c
@@ -45,7 +45,6 @@
 #include <string.h>
 
 #include <ctype.h>
-#include <assert.h>
 
 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
@@ -1393,7 +1392,12 @@ DECLAREreadFunc(readSeparateTilesIntoBuffer)
             status = 0;
             goto done;
         }
-	assert( bps % 8 == 0 );
+        if( (bps % 8) != 0 )
+        {
+            TIFFError(TIFFFileName(in), "Error, cannot handle BitsPerSample that is not a multiple of 8");
+            status = 0;
+            goto done;
+        }
 	bytes_per_sample = bps/8;
 
 	for (row = 0; row < imagelength; row += tl) {
@@ -1584,7 +1588,12 @@ DECLAREwriteFunc(writeBufferToSeparateTiles)
             _TIFFfree(obuf);
             return 0;
         }
-	assert( bps % 8 == 0 );
+        if( (bps % 8) != 0 )
+        {
+            TIFFError(TIFFFileName(out), "Error, cannot handle BitsPerSample that is not a multiple of 8");
+            _TIFFfree(obuf);
+            return 0;
+        }
 	bytes_per_sample = bps/8;
 
 	for (row = 0; row < imagelength; row += tl) {
-- 
2.12.0