On Sat, Oct 15, 2022 at 3:21 PM Chuck Hast <[email protected]> wrote:

> Folks,
> I have some WiFi devices that I am loading code into to convert
> them to something called AREDN, Amateur Radio Emergency
> Data Network. Most of them use tftp to upload the new image
> into the device. After doing several of them I tried to figure out
> how to write a small script to do the tftp uploads. The steps are
> as follows
> kp4djt@kp4djt64:~$ tftp 192.168.1.1
> tftp> bin    (set binary transfer)
> tftp> trace on   (set trace on)
> Packet tracing on.    (response)
> tftp> put /tftp/file.bin   (file to send to device)
>
> At this point it will either start showing blocks being
> sent or will time out
> I would like to write a script that just runs that, I would
> have 2 versions one for devices which default to 192.168.1.1
> and those who use .1.20, then it runs and all I have to do
> is either edit it and put the upload file in or have it stop
> and I paste/type the file name in and turn it loose.
>
> Of course as soon as you invoke tftp it jumps into it's own
> interface, I googled for writing scripts to control tftp, I saw
> some that embed it in a bash script but appears that you
> i have to make the tftp entries by hand with those scripts.
>
> Anyone have any idea of how to write a script to invoke
> tftp and insert commands to tftp?
>

Don't know about the trace on, but adapted from
https://superuser.com/questions/1116413/can-you-tftp-download-a-file-in-one-line

tftp -m binary  "192.168.1.1"  -c put "/tftp/file.bin"

Bill

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