tcsh-6.20.00-004-do-not-use-old-pointer-tricks.patch added

> Don't play pointer tricks that are undefined in modern c (Brooks Davis)

tcsh-6.20.00-004-do-not-use-old-pointer-tricks.patch

@@ -0,0 +1,28 @@
+From 2309245d647853442f6a5450130f56499698176e Mon Sep 17 00:00:00 2001
+From: Christos Zoulas <christos@zoulas.com>
+Date: Wed, 7 Dec 2016 02:52:27 +0000
+Subject: [PATCH] Don't play pointer tricks that are undefined in modern c
+ (Brooks Davis)
+
+---
+ tw.init.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/tw.init.c b/tw.init.c
+index 68adbb9..d9525c5 100644
+--- a/tw.init.c
++++ b/tw.init.c
+@@ -125,9 +125,8 @@ tw_str_add(stringlist_t *sl, size_t len)
+ 	sl->buff = xrealloc(sl->buff, sl->tbuff * sizeof(Char));
+ 	/* Re-thread the new pointer list, if changed */
+ 	if (ptr != NULL && ptr != sl->buff) {
+-	    intptr_t offs = sl->buff - ptr;
+ 	    for (i = 0; i < sl->nlist; i++)
+-		sl->list[i] += offs;
++		sl->list[i] = sl->buff + (sl->list[i] - ptr);
+ 	}
+ 	disabled_cleanup(&pintr_disabled);
+     }
+-- 
+2.9.3
+

tcsh.spec

@@ -1,7 +1,7 @@
 Name:             tcsh
 Summary:          An enhanced version of csh, the C shell
 Version:          6.20.00
-Release:          4%{?dist}
+Release:          5%{?dist}
 License:          BSD
 
 URL:              http://www.tcsh.org/
@@ -45,6 +45,7 @@ Patch000: tcsh-6.20.00-000-add-all-flags-for-gethost-build.patch
 Patch001: tcsh-6.20.00-001-delay-arginp-interpreting.patch
 Patch002: tcsh-6.20.00-002-type-of-read-in-prompt-confirm.patch
 Patch003: tcsh-6.20.00-003-fix-out-of-bounds-read.patch
+Patch004: tcsh-6.20.00-004-do-not-use-old-pointer-tricks.patch
 
 
 # Downstream patches -- these should be always included when doing rebase:
@@ -171,6 +172,10 @@ fi
 
 
 %changelog
+* Tue Feb 28 2017 David Kaspar [Dee'Kej] <dkaspar@redhat.com> - 6.20.00-5
+- Added multiple upstream patches:
+    tcsh-6.20.00-004-do-not-use-old-pointer-tricks.patch
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 6.20.00-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild