Fix FTBFS and a couple of cleanups

Fix FTBFS
  Resolves: rhbz#1799496
Fix wrong S-o-B tag in patch
Fix warning about using unversioned Obsoletes

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>

0010-Fix-GCC-warnings-about-possible-string-truncations-a.patch

@@ -1,5 +1,5 @@
 From 00241c65a5c0b4bb32a847a6abb5a86d0c704a8f Mon Sep 17 00:00:00 2001
-From: no one <noone@example.com>
+From: Javier Martinez Canillas <javierm@redhat.com>
 Date: Tue, 5 Feb 2019 20:08:43 +0100
 Subject: [PATCH] Fix GCC warnings about possible string truncations and buffer
  overflows
@@ -10,7 +10,7 @@ leads to GCC complaining about possible string truncation and overflows.
 Fix this by using memcpy(), explicitly calculating the buffers lenghts
 and set a NUL byte terminator after copying the buffers.
 
-Signed-off-by: no one <noone@example.com>
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
 ---
  grubby.c | 35 +++++++++++++++++++++++++++--------
  1 file changed, 27 insertions(+), 8 deletions(-)

0011-Fix-stringop-overflow-warning.patch

@@ -0,0 +1,72 @@
+From ed5e255c023c9b78120d9ff2246d6516f652d4b7 Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Mon, 10 Feb 2020 19:32:39 +0100
+Subject: [PATCH] Fix stringop-overflow warning
+
+GCC gives the following compile warning:
+
+grubby.c: In function 'main':
+grubby.c:4508:27: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=]
+ 4508 |     saved_command_line[0] = '\0';
+      |     ~~~~~~~~~~~~~~~~~~~~~~^~~~~~
+grubby.c:4503:26: note: at offset 0 to an object with size 0 allocated by 'malloc' here
+ 4503 |     saved_command_line = malloc(i);
+          |                          ^~~~~~~~~
+cc1: all warnings being treated as errors
+make: *** [Makefile:38: grubby.o] Error 1
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grubby.c | 35 +++++++++++++++++++----------------
+ 1 file changed, 19 insertions(+), 16 deletions(-)
+
+diff --git a/grubby.c b/grubby.c
+index 5ca689539cf..0c0f67a0ae5 100644
+--- a/grubby.c
++++ b/grubby.c
+@@ -4500,23 +4500,26 @@ int main(int argc, const char ** argv) {
+     int i = 0;
+     for (int j = 1; j < argc; j++)
+ 	i += strlen(argv[j]) + 1;
+-    saved_command_line = malloc(i);
+-    if (!saved_command_line) {
+-	fprintf(stderr, "grubby: %m\n");
+-	exit(1);
+-    }
+-    saved_command_line[0] = '\0';
+-    int cmdline_len = 0, arg_len;
+-    for (int j = 1; j < argc; j++) {
+-	arg_len = strlen(argv[j]);
+-	memcpy(saved_command_line + cmdline_len, argv[j], arg_len);
+-	cmdline_len += arg_len;
+-	if (j != argc - 1) {
+-	    memcpy(saved_command_line + cmdline_len, " ", 1);
+-	    cmdline_len++;
+-	}
++
++    if (i > 0) {
++	    saved_command_line = malloc(i);
++	    if (!saved_command_line) {
++		    fprintf(stderr, "grubby: %m\n");
++		    exit(1);
++	    }
++	    saved_command_line[0] = '\0';
++	    int cmdline_len = 0, arg_len;
++	    for (int j = 1; j < argc; j++) {
++		    arg_len = strlen(argv[j]);
++		    memcpy(saved_command_line + cmdline_len, argv[j], arg_len);
++		    cmdline_len += arg_len;
++		    if (j != argc - 1) {
++			    memcpy(saved_command_line + cmdline_len, " ", 1);
++			    cmdline_len++;
++		    }
++	    }
++	    saved_command_line[cmdline_len] = '\0';
+     }
+-    saved_command_line[cmdline_len] = '\0';
+ 
+     optCon = poptGetContext("grubby", argc, argv, options, 0);
+     poptReadDefaultConfig(optCon, 1);
+-- 
+2.24.1
+

0012-Fix-maybe-uninitialized-warning.patch

@@ -0,0 +1,35 @@
+From ee9f80190d4c458a09309fbd9a88d2756dc2d3fa Mon Sep 17 00:00:00 2001
+From: Javier Martinez Canillas <javierm@redhat.com>
+Date: Mon, 10 Feb 2020 20:13:13 +0100
+Subject: [PATCH] Fix maybe-uninitialized warning
+
+GCC gives the following compile warning:
+
+grubby.c: In function 'suseGrubConfGetBoot':
+grubby.c:2770:5: error: 'grubDevice' may be used uninitialized in this function [-Werror=maybe-uninitialized]
+ 2770 |     free(grubDevice);
+      |     ^~~~~~~~~~~~~~~~
+cc1: all warnings being treated as errors
+make: *** [Makefile:38: grubby.o] Error 1
+
+Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
+---
+ grubby.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/grubby.c b/grubby.c
+index 0c0f67a0ae5..779c25a2bf9 100644
+--- a/grubby.c
++++ b/grubby.c
+@@ -2755,7 +2755,7 @@ int grubGetBootFromDeviceMap(const char * device,
+ }
+ 
+ int suseGrubConfGetBoot(const char * path, char ** bootPtr) {
+-    char * grubDevice;
++    char * grubDevice = NULL;
+ 
+     if (suseGrubConfGetInstallDevice(path, &grubDevice))
+ 	dbgPrintf("error looking for grub installation device\n");
+-- 
+2.24.1
+

grubby.spec

@@ -1,6 +1,6 @@
 Name: grubby
 Version: 8.40
-Release: 39%{?dist}
+Release: 40%{?dist}
 Summary: Command line tool for updating bootloader configs
 License: GPLv2+
 URL: https://github.com/rhinstaller/grubby
@@ -24,6 +24,8 @@ Patch0007: 0007-Make-installkernel-to-use-kernel-install-scripts-on-.patch
 Patch0008: 0008-Add-usr-libexec-rpm-sort.patch
 Patch0009: 0009-Improve-man-page-for-info-option.patch
 Patch0010: 0010-Fix-GCC-warnings-about-possible-string-truncations-a.patch
+Patch0011: 0011-Fix-stringop-overflow-warning.patch
+Patch0012: 0012-Fix-maybe-uninitialized-warning.patch
 
 BuildRequires: gcc
 BuildRequires: pkgconfig glib2-devel popt-devel 
@@ -42,7 +44,7 @@ Requires: s390utils-base
 Requires: findutils
 Requires: util-linux
 
-Obsoletes:	%{name}-bls
+Obsoletes:	%{name}-bls < %{version}-%{release}
 
 %description
 This package provides a grubby compatibility script that manages
@@ -131,6 +133,12 @@ current boot environment.
  %{_mandir}/man8/*.8*
 
 %changelog
+* Mon Feb 10 2020 Javier Martinez Canillas <javierm@redhat.com> - 8.40-40
+- Fix FTBFS
+  Resolves: rhbz#1799496
+- Fix wrong S-o-B tag in patch
+- Fix warning about using unversioned Obsoletes
+
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 8.40-39
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild