#!/bin/sh
# insmod wrapper for loadmap trickery
# usage:
#	1) rename insmod to insmod-real
#	2) copy or symlink this script to insmod
#
# then the script will dump all module loadmaps to $MAPDIR
#
# requires:
#	getopt, basename, date
#	you might have to copy them to your root filesystem
#
#######################################################################

# destination directory
MAPDIR=/lib/modules/loadmaps

# the real thing
INSMOD=/sbin/insmod-real

#######################################################################
OPTS=""
ARGS=""
MAP=""
DEST=""

CALLED="$0 $*"

set -- `getopt fkmpsxXvo: $*` || exit 1
while [ "$1" != "" ]; do
	case $1 in
		-f | -k | -p | -x | -X | -v)
			# pass throuth
			OPTS="$OPTS $1"; shift ;;
		-o)
			# pass throuth with arg, note name
			OPTS="$OPTS $1 $2"; DEST="$2"; shift; shift;;
		-m)
			# note this, no file but stdout for loadmap
			OPTS="$OPTS $1"; MAP="nofile"; shift ;;
		-s)
			# skip - no syslog becauce we want dump to a file
			shift;;
		--)
			# grab module name for loadmap filename
			MOD=$2; shift; shift;;
		*=*)
			# some module arg
			ARGS="$ARGS $1"; shift;;
		*)
			# Huh?
			echo "insmod-wrapper: what the heck is '$1' ???"
			echo "command line: $CALLED"
			exit 1;;
	esac
done

if [ "$MAP" = "nofile" ]; then
	# -m on command line -- dump loadmap to stdout (to make it
	# work like people expect from docs)
	$INSMOD $OPTS $MOD $ARGS
else
	# dump it to our directory
	[ "$DEST" = "" ] && DEST="`basename $MOD .o`"
	DESTFILE="$MAPDIR/$DEST"
	echo "orig     : $CALLED"			>  $DESTFILE
	echo "calling  : $INSMOD $OPTS -m $MOD $ARGS"	>> $DESTFILE
	echo "timestamp: `date`"			>> $DESTFILE
	echo "--"					>> $DESTFILE
	$INSMOD $OPTS -m $MOD $ARGS			>> $DESTFILE
fi