Added intercept build file and sources

1 files changed, 54 insertions, 0 deletions

diff --git a/netcon/intercept b/netcon/intercept
new file mode 100755
index 00000000..3eb27ff7
--- /dev/null
+++ b/netcon/intercept
@@ -0,0 +1,54 @@
+#!/bin/sh
+# usage:
+# /usr/bin/intercept program <args>
+
+if [ $# = 0 ] ; then
+   echo "$0: insufficient arguments"
+   exit
+fi
+
+case "$1" in
+	on)
+		if [ -z "$LD_PRELOAD" ]
+			then
+				export LD_PRELOAD="/lib/libintercept.so.1.0"
+			else
+				echo $LD_PRELOAD | grep -q "/lib/libintercept\.so.1.0" || \
+				export LD_PRELOAD="/lib/libintercept.so $LD_PRELOAD"
+		fi
+	;;
+	off)
+		export LD_PRELOAD=`echo -n $LD_PRELOAD | sed 's/\/lib\/libintercept.so.1.0 \?//'`
+		if [ -z "$LD_PRELOAD" ]
+			then
+				unset LD_PRELOAD
+		fi
+	;;
+	show|sh)
+		echo "LD_PRELOAD=\"$LD_PRELOAD\""
+	;;
+	-h|-?)
+      echo ""
+   ;;
+	*)
+		if [ -z "$LD_PRELOAD" ]
+		then
+			export LD_PRELOAD="/lib/libintercept.so.1.0"
+		else
+			echo $LD_PRELOAD | grep -q "/lib/libintercept\.so.1.0" || \
+			export LD_PRELOAD="/lib/libintercept.so.1.0 $LD_PRELOAD"
+		fi
+
+		if [ $# = 0 ]
+		then
+			${SHELL:-/bin/sh}
+		fi
+
+		if [ $# -gt 0 ]
+		then
+			exec "$@"
+		fi
+	;;
+esac
+
+#EOF