[mutt] - Fix unhandled strchr output (rhbz#833044)

[Honza Horak]

commit 524e7176af2ae82d32028ed0daaaa995ae8f9d87
Author: Honza Horák <hhorak at redhat.com>
Date:   Mon Jun 25 14:48:22 2012 +0200

    - Fix unhandled strchr output
    (rhbz#833044)

 mutt-1.5.21-writehead.patch |   12 ++++++++++++
 mutt.spec                   |    4 ++++
 2 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/mutt-1.5.21-writehead.patch b/mutt-1.5.21-writehead.patch
new file mode 100644
index 0000000..4c10170
--- /dev/null
+++ b/mutt-1.5.21-writehead.patch
@@ -0,0 +1,12 @@
+diff -up mutt-1.5.21/sendlib.c.writehead mutt-1.5.21/sendlib.c
+--- mutt-1.5.21/sendlib.c.writehead	2012-06-25 14:41:34.681483226 +0200
++++ mutt-1.5.21/sendlib.c	2012-06-25 14:41:44.485408610 +0200
+@@ -1799,7 +1799,7 @@ static int write_one_header (FILE *fp, i
+   else
+   {
+     t = strchr (start, ':');
+-    if (t > end)
++    if (t == NULL || t > end)
+     {
+       dprint (1, (debugfile, "mwoh: warning: header not in "
+ 		  "'key: value' format!\n"));
diff --git a/mutt.spec b/mutt.spec
index 942dab4..dea10f5 100644
--- a/mutt.spec
+++ b/mutt.spec
@@ -36,6 +36,7 @@ Patch10: mutt-1.5.21-pophash.patch
 Patch11: mutt-1.5.21-certscomp.patch
 Patch12: mutt-1.5.21-notation.patch
 Patch13: mutt-1.5.21-syncdebug.patch
+Patch14: mutt-1.5.21-writehead.patch
 Url: http://www.mutt.org/
 Requires: mailcap urlview
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -84,6 +85,7 @@ for selecting groups of messages.
 %patch11 -p1 -b .certscomp
 %patch12 -p1 -b .notation
 %patch13 -p1 -b .syncdebug
+%patch14 -p1 -b .writehead
 
 sed -i.gpgerror 's/`$GPGME_CONFIG --libs`/"\0 -lgpg-error"/' configure
 
@@ -169,6 +171,8 @@ rm -rf $RPM_BUILD_ROOT
 * Thu May 10 2012 Honza Horak <hhorak at redhat.com> - 5:1.5.21-12
 - Fix segmentation fault while syncing mailbox
   (rhbz#691719)
+- Fix unhandled strchr output
+  (rhbz#833044)
 
 * Wed Apr 25 2012 Honza Horak <hhorak at redhat.com> - 5:1.5.21-11
 - Patch from Petr Pisar fixing verification of PGP signatures