From: Keir Fraser <keir.fraser@citrix.com>
Date: Mon, 19 Apr 2010 08:00:30 +0000 (+0100)
Subject: Calling awk and not gawk in the Xen scripts
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~12347
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=f770264fe1f91d685499179e0e9c339fa0aaa6a8;p=xen.git

Calling awk and not gawk in the Xen scripts

I noticed that 2 scripts in Xen 4.0.0 are calling "gawk". Normally, in
most distributions, gawk is considered a specific version of awk.
Calling "gawk" and not "awk" generally means that you need
specificities of the "g" version of awk, as opposed to "mawk" which is
another implementation of the same tool.

So, unless I misread the scripts, Xen doesn't need to use gawk but
just any implementation of awk, and the attached patch can safely be
applied.

If I am wrong (which I don't think I am at the first look) and that
there's a reason why gawk is used and not awk, then IMHO, the toplevel
README should mention it in the prerequisites.

From: Thomas Goirand <thomas@goirand.fr>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
---

diff --git a/tools/hotplug/Linux/network-bridge b/tools/hotplug/Linux/network-bridge
index d47c7b2b5c..070a9f9feb 100644
--- a/tools/hotplug/Linux/network-bridge
+++ b/tools/hotplug/Linux/network-bridge
@@ -80,7 +80,7 @@ find_alt_device () {
     local interf=$1
     local prefix=${interf%[[:digit:]]}
     local ifs=$(ip link show | grep " $prefix" |\
-                gawk '{ printf ("%s",substr($2,1,length($2)-1)) }' |\
+                awk '{ printf ("%s",substr($2,1,length($2)-1)) }' |\
                 sed s/$interf//)
     echo "$ifs"
 }
diff --git a/tools/hotplug/Linux/vtpm-common.sh b/tools/hotplug/Linux/vtpm-common.sh
index a45868eefd..d0d7935faf 100644
--- a/tools/hotplug/Linux/vtpm-common.sh
+++ b/tools/hotplug/Linux/vtpm-common.sh
@@ -98,7 +98,7 @@ function vtpmdb_is_free_instancenum () {
 		avail=0
 	else
 		instances=$(cat $VTPMDB |                \
-		           gawk                          \
+		           awk                          \
 		           '{                            \
 		               if (1 != index($1,"#")) { \
 		                 printf("%s ",$2);       \
@@ -120,7 +120,7 @@ function vtpmdb_is_free_instancenum () {
 function vtpmdb_get_free_instancenum () {
 	local ctr instances don found
 	instances=$(cat $VTPMDB |                \
-	           gawk                          \
+	           awk                          \
 	           '{                            \
 	               if (1 != index($1,"#")) { \
 	                 printf("%s ",$2);       \
@@ -174,7 +174,7 @@ function vtpmdb_validate_entry () {
 	inst=$2
 
 	res=$(cat $VTPMDB |            \
-	     gawk -vvmname=$vmname     \
+	     awk -vvmname=$vmname     \
 	          -vinst=$inst         \
 	     '{                        \
 	         if ( 1 == index($1,"#")) {\
@@ -209,7 +209,7 @@ function vtpmdb_remove_entry () {
 	VTPMDB_TMP="$VTPMDB".tmp
 
 	$(cat $VTPMDB |            \
-	 gawk -vvmname=$vmname     \
+	 awk -vvmname=$vmname     \
 	 '{                        \
 	    if ( $1 != vmname ) {  \
 	      print $0;            \
@@ -350,13 +350,13 @@ function vtpm_delete_instance () {
 function vtpm_isLocalAddress() {
 	local addr res
 	addr=$(ping $1 -c 1 |  \
-	       gawk '{ print substr($3,2,length($3)-2); exit }')
+	       awk '{ print substr($3,2,length($3)-2); exit }')
 	if [ "$addr" == "" ]; then
 		echo "-1"
 		return
 	fi
 	res=$(ifconfig | grep "inet addr" |  \
-	     gawk -vaddr=$addr               \
+	     awk -vaddr=$addr               \
 	     '{                              \
 	        if ( addr == substr($2, 6)) {\
 	          print "1";                 \