From d315b65d179dc3859996272c9e4a334f97421eec Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Sat, 7 Dec 2019 18:58:44 +0100
Subject: [PATCH] Brought xorriso-dd-target into GNU xorriso

---
 xorriso/README_gnu_xorriso         | 17 +++++++++++++++++
 xorriso/configure_ac.txt           | 16 ++++++++++++++++
 xorriso/make_xorriso_standalone.sh |  8 ++++++++
 xorriso/xorriso_makefile_am.txt    | 23 +++++++++++++++++++----
 4 files changed, 60 insertions(+), 4 deletions(-)

diff --git a/xorriso/README_gnu_xorriso b/xorriso/README_gnu_xorriso
index 2697c86f..11f9cce6 100644
--- a/xorriso/README_gnu_xorriso
+++ b/xorriso/README_gnu_xorriso
@@ -263,6 +263,23 @@ Prefix "mmc:" causes a path to be accepted only if it is a real optical drive
 which is accessible by generic SCSI/MMC commands.
 
 
+                         xorriso-dd-target
+
+GNU xorriso comes with a script named 
+  xorriso-dd-target/xorriso-dd-target
+which uses the util-linux program lsblk to find suitable hard-disk-like
+target devices for copying hard-disk bootable ISO images onto them. Such images
+are offered by GNU/Linux distributions for installing their system.
+
+xorriso-dd-target gets installed only if ./configure detects to run on a
+GNU/Linux system. It refuses to start on non-Linux kernels or if program lsblk
+is not found in /usr/sbin, /sbin, /usr/bin, /bin.
+
+For introduction, examples, and details see in the build directory
+  man xorriso-dd-target/xorriso-dd-target.1
+  info xorriso-dd-target/xorriso-dd-target.info
+
+
                               Testing
 
 For automated and manual tests of xorriso's functionality see file
diff --git a/xorriso/configure_ac.txt b/xorriso/configure_ac.txt
index 2aa0ff8f..c941899c 100644
--- a/xorriso/configure_ac.txt
+++ b/xorriso/configure_ac.txt
@@ -133,6 +133,22 @@ then
     AC_DEFINE([Libburn_os_has_statvfS], [])
 fi
 
+dnl xorriso-dd-target is addicted to the Linux kernel and util-linux lsblk
+if uname -s | grep '^Linux' >/dev/null
+then
+  XORRISO_DD_TARGET=xorriso-dd-target/xorriso-dd-target
+  XORRISO_DD_TARGET_MAN=xorriso-dd-target/xorriso-dd-target.1
+  XORRISO_DD_TARGET_TEXI=xorriso-dd-target/xorriso-dd-target.texi
+  echo "enabled  installation of xorriso-dd-target/xorriso-dd-target"
+else
+  XORRISO_DD_TARGET=
+  XORRISO_DD_TARGET_MAN=
+  XORRISO_DD_TARGET_TEXI=
+  echo "disabled installation of xorriso-dd-target/xorriso-dd-target"
+fi
+AC_SUBST(XORRISO_DD_TARGET)
+AC_SUBST(XORRISO_DD_TARGET_MAN)
+AC_SUBST(XORRISO_DD_TARGET_TEXI)
 
 dnl Add compiler-specific flags
 
diff --git a/xorriso/make_xorriso_standalone.sh b/xorriso/make_xorriso_standalone.sh
index 7bd42630..86359774 100755
--- a/xorriso/make_xorriso_standalone.sh
+++ b/xorriso/make_xorriso_standalone.sh
@@ -258,6 +258,14 @@ copy_files \
  frontend/grub-mkrescue-sed.sh \
  "$lone_dir"/frontend
 
+create_dir "$lone_dir"/xorriso-dd-target
+copy_files \
+ xorriso-dd-target/xorriso-dd-target \
+ xorriso-dd-target/xorriso-dd-target.texi \
+ xorriso-dd-target/xorriso-dd-target.info \
+ xorriso-dd-target/xorriso-dd-target.1 \
+ "$lone_dir"/xorriso-dd-target
+
 
 # releng
 
diff --git a/xorriso/xorriso_makefile_am.txt b/xorriso/xorriso_makefile_am.txt
index b3d753cf..119809a7 100644
--- a/xorriso/xorriso_makefile_am.txt
+++ b/xorriso/xorriso_makefile_am.txt
@@ -255,9 +255,12 @@ xorriso_make_xorriso_1_LDADD =
 xorriso_make_xorriso_1_SOURCES = xorriso/make_xorriso_1.c
 
 
-# A Proof-of-concept for frontends
+# A Proof-of-concept for frontends, and xorriso-dd-target if on Linux kernel
 bin_SCRIPTS = \
-	frontend/xorriso-tcltk
+	frontend/xorriso-tcltk \
+	$(XORRISO_DD_TARGET)
+
+EXTRA_SCRIPTS = xorriso-dd-target/xorriso-dd-target
 
 
 # Install symbolic links to the xorriso binary
@@ -315,13 +318,24 @@ man_MANS = \
 	xorriso/xorriso.1 \
 	xorriso/xorrisofs.1 \
 	xorriso/xorrecord.1 \
-	xorriso/xorriso-tcltk.1
+	xorriso/xorriso-tcltk.1 \
+	$(XORRISO_DD_TARGET_MAN)
+
+EXTRA_MANS = xorriso-dd-target/xorriso-dd-target.1
 
 info_TEXINFOS = \
 	xorriso/xorriso.texi \
 	xorriso/xorrisofs.texi \
 	xorriso/xorrecord.texi \
-	xorriso/xorriso-tcltk.texi
+	xorriso/xorriso-tcltk.texi \
+	xorriso-dd-target/xorriso-dd-target.texi
+
+# xorriso-dd-target.texi is hardcoded for now because of
+#   Makefile.am: error: texinfo file '@XORRISO_DD_TARGET_TEXI@' has
+#                       unrecognized extension
+#	$(XORRISO_DD_TARGET_TEXI)
+#
+# EXTRA_TEXINFOS = xorriso-dd-target/xorriso-dd-target.texi
 
 EXTRA_DIST = \
 	xorriso.pc.in \
@@ -346,6 +360,7 @@ EXTRA_DIST = \
 	frontend/sh_on_named_pipes.sh \
 	frontend/xorriso_broker.sh \
 	frontend/grub-mkrescue-sed.sh \
+	xorriso-dd-target/xorriso-dd-target \
 	libisofs/aaip-os-dummy.c \
 	libisofs/aaip-os-linux.c \
 	libisofs/aaip-os-freebsd.c \