Disable SHA256 header-only digest generation temporarily (#1480407)

There's a bug in rpm 4.13.x rpmkeys -K signature checking that chokes
on unknown tags it's supposed to ignore like older rpm versions do.
Unfortunately that means all active Fedora versions are affected,
so disabling the SHA256 header-only digest generation temporarily to
give time to deal with the other versions.

rpm-4.14-disable-sha256hdr.patch

@@ -0,0 +1,32 @@
+diff --git a/lib/signature.c b/lib/signature.c
+index b91baf628..ddfa969c9 100644
+--- a/lib/signature.c
++++ b/lib/signature.c
+@@ -120,6 +120,7 @@ rpmRC rpmGenerateSignature(char *SHA256, char *SHA1, uint8_t *MD5,
+     int gpgSize = rpmExpandNumeric("%{__gpg_reserved_space}");
+ 
+     /* Prepare signature */
++#if 0 /* rpm 4.13.x signature checking trips up on this, disable temporarily */
+     if (SHA256) {
+ 	rpmtdReset(&td);
+ 	td.tag = RPMSIGTAG_SHA256;
+@@ -128,6 +129,7 @@ rpmRC rpmGenerateSignature(char *SHA256, char *SHA1, uint8_t *MD5,
+ 	td.data = SHA256;
+ 	headerPut(sig, &td, HEADERPUT_DEFAULT);
+     }
++#endif
+ 
+     if (SHA1) {
+ 	rpmtdReset(&td);
+diff --git a/tests/rpmsigdig.at b/tests/rpmsigdig.at
+index bf6bfd01a..75b9bc110 100644
+--- a/tests/rpmsigdig.at
++++ b/tests/rpmsigdig.at
+@@ -123,7 +123,6 @@ runroot rpmkeys -Kv /build/RPMS/noarch/attrtest-1.0-1.noarch.rpm
+ [0],
+ [/build/RPMS/noarch/attrtest-1.0-1.noarch.rpm:
+     Header SHA1 digest: OK
+-    Header SHA256 digest: OK
+     Payload SHA256 digest: OK
+     MD5 digest: OK
+ ],

rpm.spec

@@ -29,7 +29,7 @@
 Summary: The RPM package management system
 Name: rpm
 Version: %{rpmver}
-Release: %{?snapver:0.%{snapver}.}1%{?dist}
+Release: %{?snapver:0.%{snapver}.}2%{?dist}
 Group: System Environment/Base
 Url: http://www.rpm.org/
 Source0: http://ftp.rpm.org/releases/%{srcdir}/%{name}-%{srcver}.tar.bz2
@@ -50,6 +50,9 @@ Patch3: rpm-4.9.90-no-man-dirs.patch
 Patch4: rpm-4.8.1-use-gpg2.patch
 # Temporary band-aid for rpm2cpio whining on payload size mismatch (#1142949)
 Patch5: rpm-4.12.0-rpm2cpio-hack.patch
+# rpm 4.13 rpmkeys -K is buggy and chokes on the new sha256 header digest,
+# disable its generation until fixed in other fedora versions (#1480407)
+Patch6: rpm-4.14-disable-sha256hdr.patch
 
 # Patches already upstream:
 
@@ -565,6 +568,9 @@ exit 0
 %doc doc/librpm/html/*
 
 %changelog
+* Fri Aug 11 2017 Panu Matilainen <pmatilai@redhat.com> - 4.13.90-0.git14000.2
+- Disable SHA256 header-only digest generation temporarily (#1480407)
+
 * Thu Aug 10 2017 Panu Matilainen <pmatilai@redhat.com> - 4.13.90-0.git14000.1
 - Rebase to rpm 4.13.90 aka 4.14.0-alpha (#1474836)