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[Henrik Riomar]

On Thu, Apr 21, 2022 at 1:11 PM Richard W.M. Jones <rjones at redhat.com> wrote:
>
> On Thu, Apr 21, 2022 at 12:54:42PM +0200, Henrik Riomar wrote:
> > On Wed, Apr 20, 2022 at 3:42 PM Richard W.M. Jones <rjones at redhat.com> wrote:
> > >
> > > On Wed, Apr 20, 2022 at 09:33:03AM -0400, Cole Robinson wrote:
> > > > On 4/19/22 1:25 PM, Henrik Riomar wrote:

> > I now note that commit b7cc3d93a613ef6d0ac5ccd6e32cc3d66e057243, that
> > is part of v1.22 introduced two bashisms:
> >
> > possible bashism in ./virt-what line 119 (echo -e):
> >                                   │
> >     if ( { echo -e "GET /latest/meta-datainstance/instance-type
> > HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" │
> > >&3; grep -sq 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then                         │
> > possible bashism in ./virt-what line 119 (/dev/(tcp|udp)):
> >                                   │
> >     if ( { echo -e "GET /latest/meta-datainstance/instance-type
> > HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" │
> > >&3; grep -sq 'ebm' <&3 ; } 3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then
> >
> > Can this be fixed? as that is the only bashisms in virt-what.
>
> Can you send a patch to fix it?
>

Not tested on Alibaba cloud but something like this could work, note
the nc timeout is set to 1 second.
--- a/virt-what.in
+++ b/virt-what.in
@@ -116,7 +116,7 @@ arch=$(uname -m | sed -e 's/i.86/i386/' | sed -e
's/arm.*/arm/')
 # Check for Alibaba Cloud
 if echo "$dmi" | grep -q 'Manufacturer: Alibaba'; then
     # Check for Alibaba Cloud ECS Bare Metal (EBM) Instance
-    if ( { echo -e "GET /latest/meta-datainstance/instance-type
HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" >&3; grep -sq 'ebm' <&3 ; }
3<> /dev/tcp/100.100.100.200/80 ) 2>/dev/null ; then
+    if ( printf "%b\n" "GET /latest/meta-datainstance/instance-type
HTTP/1.0\r\nHost: 100.100.100.200\r\n\r" | nc -w1 100.100.100.200 80 |
grep -sq 'ebm' ) 2>/dev/null ; then
         echo "alibaba_cloud-ebm"
     else
         echo "alibaba_cloud"

/ Henrik