generator.sh: POSIX Compliant Update.2014.11

This change is to make the test script to be POSIX compliant.

Original patch comes from:

Lucas Dutra Nunes <ldnunes@ossystems.com.br>

Signed-off by: Botao Sun <botao.sun@linaro.org>

Change-Id: I5045bfb582a630699a39b077cfb4ee3f32263ae3

1 files changed, 30 insertions, 11 deletions

diff --git a/common/scripts/generator.sh b/common/scripts/generator.sh
index 61808c83..e06a1177 100755
--- a/common/scripts/generator.sh
+++ b/common/scripts/generator.sh
@@ -1,18 +1,35 @@
 #!/bin/sh
+#
+# Copyright (C) 2010 - 2014, Linaro Limited.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
 set -x
 usage()
 {
-	echo "usage:\n" \
-	     " - $1 (interface.Primary traffic output interface.)\n" \
-	     " - $2 (address.The IP address that the packages will be replayed to.)\n" \
-	     " - $3 (rate.Replay packets at a given packets/sec.It takes an integer number or 'max' as its argument.)\n" \
-	     " - $4 (loop number.Loop through the capture file X times.)"
+    echo "usage:"
+    echo " - $1 (interface.Primary traffic output interface.)"
+    echo " - $2 (address.The IP address that the packages will be replayed to.)"
+    echo " - $3 (rate.Replay packets at a given packets/sec.It takes an integer number or 'max' as its argument.)"
+    echo " - $4 (loop number.Loop through the capture file X times.)"
 }
 
 if [  $# -ne 4 ]; then
-	echo "param miss!"
-	usage
-	exit 1
+    echo "param miss!"
+    usage
+    exit 1
 fi
 
 INTF=$1
@@ -24,16 +41,18 @@ local_ip=$(ifconfig $INTF |grep "inet addr"|grep -v "127.0.0.1"|cut -d: -f2|cut
 remote_ip=$ADDR
 local_mac=$(ifconfig $INTF | grep "HWaddr" | awk '{print $5}')
 ping -c 1 ${remote_ip}
+
 if [ $? -ne 0 ]; then
-	echo "Address $remote_ip isn't reachable"
-	exit 1
+    echo "Address $remote_ip isn't reachable"
+    exit 1
 fi
 remote_mac=$(arp -a | grep "${remote_ip}" | awk '{print $4}')
 
 opt="-t"
 if [ $RATE != 'max' ]; then
-	opt="-p $RATE"
+    opt="-p $RATE"
 fi
+
 infile="./common/scripts/pcapfiles/iperf.pcap"
 tcpreplay -V
 tcpprep -a client -i $infile -o tmpcap.cache