[Qemu-devel] [RFC PATCH v2 03/11] Add a script to extract VSS SDK headers on POSIX system

[Tomoki Sekiyama <tsekiyam@redhat.com>]

VSS SDK(*) setup.exe is only runnable on Windows. This adds a script
to extract VSS SDK headers on POSIX-systems using msitools.

  * http://www.microsoft.com/en-us/download/details.aspx?id=23490

From: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
---
 scripts/extract-vsssdk-headers |   25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100755 scripts/extract-vsssdk-headers

diff --git a/scripts/extract-vsssdk-headers b/scripts/extract-vsssdk-headers
new file mode 100755
index 0000000..5877137
--- /dev/null
+++ b/scripts/extract-vsssdk-headers
@@ -0,0 +1,25 @@
+#! /bin/bash
+
+# extract-vsssdk-headers
+# Author: Paolo Bonzini <pbonzini@redhat.com>
+
+set -e
+if test $# = 0 || ! test -f "$1"; then
+  echo 'Usage: extract-vsssdk-headers /path/to/setup.exe'
+  exit 1
+fi
+
+# Extract .MSI file in the .exe, looking for the OLE compound
+# document signature.  Extra data at the end does not matter.
+export LC_ALL=C
+MAGIC=$'\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1'
+offset=`grep -abom1 "$MAGIC" "$1" | sed -n 's/:/\n/; P' `
+(dd of=/dev/null skip=$offset bs=1 count=0; cat) < "$1" > vsssdk.msi
+
+# Now extract the files.
+tmpdir=tmp$$
+mkdir $tmpdir
+msiextract -C $tmpdir vsssdk.msi
+mv "$tmpdir/Program Files/Microsoft/VSSSDK72/inc" inc
+rm -rf $tmpdir vsssdk.msi
+exit 0