Patch from mdm@google.com...

third_party/xdg-utils/tests/include/tempfile.sh

+## Created 7/14/2006 by Tom Whipple <tom.whipple@intel.com>
+
+## create a globally unique identifier (GUID)
+## note that this is LIKELY to be unique, but not 100% guaranteed.
+get_guid() {
+        prefix=$1
+        now=`date '+%F-%H%M%S.%N'`
+        GUID="$prefix$now-$RANDOM"
+}
+
+get_tmpsubdir() {
+        if [ ! -z "$1" ] ; then
+                tmp="$1"
+        else
+                tmp=${TMPDIR-/tmp}
+        fi
+        if [ -z "$GUID" ] ; then
+                get_guid
+        fi
+        TMPSUBDIR="$tmp/$GUID-$$"
+        (umask 000 && mkdir -p $TMPSUBDIR) || {
+                echo "Could not create temporary directory!" >&2 
+                exit 255
+        }
+}
+
+get_shortid() {
+        seqfile=$1
+
+        today=`date '+%m-%d'`
+
+        if [ -f "$seqfile" ] ; then     
+                seqdate=`cat $seqfile | cut -d '+' -f 1 -`
+                if [ "$today" = "$seqdate" ] ; then
+                        seq=$(( `cat $seqfile | cut -d '+' -f 2 -` + 1 ))
+                else
+                        seq=1
+                fi
+        else
+                seq=1
+        fi
+
+        SHORTID="$today+$seq"
+        echo "$SHORTID" > "$seqfile"
+        
+}
+