[msitools] msidump: learn --signature

[Marc-Andre Lureau <malureau src gnome org>]

commit 08b8bb37465991f91f72aae7a073e95d9dedef83
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Thu Feb 14 03:24:55 2013 +0100

    msidump: learn --signature

 tools/msidump.in |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/tools/msidump.in b/tools/msidump.in
index c675f02..5edab46 100644
--- a/tools/msidump.in
+++ b/tools/msidump.in
@@ -23,6 +23,7 @@ set -e
 
 tables=
 streams=
+signature=
 destdir=.
 
 version()
@@ -50,11 +51,12 @@ Usage: msidump [OPTION]... MSI-FILE
 Options:
   -t, --tables         Dump tables.  This is the default.
   -s, --streams        Dump streams
+  -S, --signature      Dump asn1parse of digital signature.
   -d, --directory DIR  Dump to given directory DIR
   -h, --help           Print help message and exit.
   -v, --version        Print version information and exit.
 
-More than one of -t or -s may be specified.
+More than one of -t, -s or -S may be specified.
 EOF
 }
 
@@ -66,6 +68,9 @@ while true ; do
         -s|--streams)
             streams=true
             ;;
+        -S|--signature)
+            signature=true
+            ;;
         -d|--directory)
             destdir=$2
             shift
@@ -103,12 +108,13 @@ if [[ ! -d $destdir ]] ; then
 fi
 
 # Tables mode is the default.
-if [[ -z $tables$streams ]] ; then
+if [[ -z $tables$streams$signature ]] ; then
     tables=true
 else
     tables=${tables:-false}
 fi
 streams=${streams:-false}
+signature=${signature:-false}
 
 
 # Here we go
@@ -129,3 +135,10 @@ if $streams ; then
         msiinfo extract "$1" "$i" > "$destdir/_Streams/$i"
     done
 fi
+
+if $signature ; then
+    signature="$destdir/signature"
+    echo "Exporting asn1parsed $signature ..."
+    rm -f "$signature"
+    (msiinfo extract "$1" $'\005DigitalSignature' 2>/dev/null | openssl asn1parse -i -inform de > 
"$signature") || true
+fi