From 88838dd28200b53c4da7a558975b195fd41ba446 Mon Sep 17 00:00:00 2001
From: "Christoph M. Becker" <cmb@php.net>
Date: Sat, 23 Jul 2016 19:29:43 +0200
Subject: [PATCH] Fix #68712: suspicious if-else statements

---
 NEWS                            |  1 +
 ext/gd/libgd/gd_interpolation.c | 36 ++++++++-------------------------
 2 files changed, 9 insertions(+), 28 deletions(-)

diff --git a/NEWS b/NEWS
index b3000bd745876..6fe4d5c78b0a1 100644
--- a/NEWS
+++ b/NEWS
@@ -33,6 +33,7 @@ PHP                                                                        NEWS
   . Fixed bug #43828 (broken transparency of imagearc for truecolor in
     blendingmode). (cmb)
   . Fixed bug #66555 (Always false condition in ext/gd/libgd/gdkanji.c). (cmb)
+  . Fixed bug #68712 (suspicious if-else statements). (cmb)
 
 - Intl:
   . Partially fixed #72506 (idn_to_ascii for UTS #46 incorrect for long domain
diff --git a/ext/gd/libgd/gd_interpolation.c b/ext/gd/libgd/gd_interpolation.c
index 833e7fc093b7b..4c11213a8eb71 100644
--- a/ext/gd/libgd/gd_interpolation.c
+++ b/ext/gd/libgd/gd_interpolation.c
@@ -1509,13 +1509,8 @@ gdImagePtr gdImageScaleBicubicFixed(gdImagePtr src, const unsigned int width, co
 				src_offset_y[0] = m;
 			}
 
-			if (m < 1) {
-				src_offset_x[1] = n;
-				src_offset_y[1] = m;
-			} else {
-				src_offset_x[1] = n;
-				src_offset_y[1] = m;
-			}
+			src_offset_x[1] = n;
+			src_offset_y[1] = m;
 
 			if ((m < 1) || (n >= src_w - 1)) {
 				src_offset_x[2] = n;
@@ -1567,13 +1562,8 @@ gdImagePtr gdImageScaleBicubicFixed(gdImagePtr src, const unsigned int width, co
 				src_offset_y[8] = m;
 			}
 
-			if (m >= src_h - 1) {
-				src_offset_x[9] = n;
-				src_offset_y[9] = m;
-			} else {
-				src_offset_x[9] = n;
-				src_offset_y[9] = m;
-			}
+			src_offset_x[9] = n;
+			src_offset_y[9] = m;
 
 			if ((m >= src_h-1) || (n >= src_w-1)) {
 				src_offset_x[10] = n;
@@ -1599,13 +1589,8 @@ gdImagePtr gdImageScaleBicubicFixed(gdImagePtr src, const unsigned int width, co
 				src_offset_y[12] = m;
 			}
 
-			if (m >= src_h - 2) {
-				src_offset_x[13] = n;
-				src_offset_y[13] = m;
-			} else {
-				src_offset_x[13] = n;
-				src_offset_y[13] = m;
-			}
+			src_offset_x[13] = n;
+			src_offset_y[13] = m;
 
 			if ((m >= src_h - 2) || (n >= src_w - 1)) {
 				src_offset_x[14] = n;
@@ -2014,13 +1999,8 @@ gdImagePtr gdImageRotateBicubicFixed(gdImagePtr src, const float degrees, const
 					src_offset_y[0] = m;
 				}
 
-				if (m < 1) {
-					src_offset_x[1] = n;
-					src_offset_y[1] = m;
-				} else {
-					src_offset_x[1] = n;
-					src_offset_y[1] = m ;
-				}
+				src_offset_x[1] = n;
+				src_offset_y[1] = m;
 
 				if ((m < 1) || (n >= src_w-1)) {
 					src_offset_x[2] = - 1;