README: fix a typo and add some clarifications

[kinect-audio-setup.git] / kinect_fetch_fw

diff --git a/kinect_fetch_fw b/kinect_fetch_fw
index 061fa2f..1ec79cd 100755 (executable)
--- a/kinect_fetch_fw
+++ b/kinect_fetch_fw
@@ -10,19 +10,20 @@
 # To Public License, Version 2, as published by Sam Hocevar. See
 # http://sam.zoy.org/wtfpl/COPYING for more details.
 #
-# 7z from p7zip-full is needed, it can be installed with
-#   sudo aptitude install p7zip-full
+# wget and 7z from p7zip-full are needed, they can be installed with
+#   sudo aptitude install wget p7zip-full
 
 set -e
 
-SDK_URL=${SDK_URL:-"http://download.microsoft.com/download/8/4/C/84C9EF40-EE49-42C2-AE26-C6E30921182F/KinectSDK32.msi"}
+SDK_URL=${SDK_URL:-"http://download.microsoft.com/download/F/9/9/F99791F2-D5BE-478A-B77A-830AD14950C3/KinectSDK-v1.0-beta2-x86.msi"}
+SDK_MD5="40764fe9e00911bda5095e5be777e311"
 
-[ $# -lt 1 ] && { echo "usage: $(basename "$0") <firmware destdir> [<path of kinect_upload_fw binary>]"; exit 1; }
+[ $# -lt 1 ] && { echo "usage: $(basename "$0") <firmware destdir> [<path of kinect_upload_fw binary>]" 1>&2; exit 1; }
 FW_DESTDIR=$(readlink -f $1)
 LOADER_PATH=${2:-"/usr/local/sbin/kinect_upload_fw"}
 
-command -v wget >/dev/null 2>&1 || { echo "$(basename "$0"): command 'wget' is needed." ; exit 1; }
-command -v 7z >/dev/null 2>&1 || { echo "$(basename "$0"): command '7z' is needed." ; exit 1; }
+command -v wget >/dev/null 2>&1 || { echo "$(basename "$0"): command 'wget' is needed." 1>&2 ; exit 1; }
+command -v 7z >/dev/null 2>&1 || { echo "$(basename "$0"): command '7z' is needed." 1>&2; exit 1; }
 
 TEMPDIR=$(mktemp -d)
 trap 'rm -rf "$TEMPDIR" >/dev/null 2>&1' 0
@@ -31,7 +32,17 @@ trap "exit 2" 1 2 3 15
 cd "$TEMPDIR"
 ARCHIVE_NAME=$(basename "$SDK_URL")
 rm -f "$ARCHIVE_NAME" && wget "$SDK_URL" -O "$ARCHIVE_NAME"
-7z e -y -r "$ARCHIVE_NAME" "UACFirmware.*"
+
+ARCHIVE_MD5=$(md5sum "$ARCHIVE_NAME" | grep --only-matching -m 1 '^[0-9a-f]*')
+if [ "$ARCHIVE_MD5" != "$SDK_MD5" ];
+then
+  echo "$(basename "$0"): Invalid hash for file '$ARCHIVE_NAME'." 1>&2
+  exit 1
+fi
+
+echo -n "Extracting the UAC firmware..."
+7z e -y -r "$ARCHIVE_NAME" "UACFirmware.*" > /dev/null
+echo " done."
 
 FW_FILE=$(ls UACFirmware.* | cut -d ' ' -f 1)