Attached is a patch that implements tftp rate limitation logic.

The change to transfer.c is just a white-space indentation fixup.

This has been lightly tested and could use some review.

[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 8k -o /dev/null tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
   0 5304k 0 46080 0 0 7544 0 0:12:00 0:00:06 0:11:54 8147^C
[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 80k -o /dev/null tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
   5 5304k 5 293k 0 0 80874 0 0:01:07 0:00:03 0:01:04 80871^C
[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 800k -o /dev/null tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
  44 5304k 44 2347k 0 0 798k 0 0:00:06 0:00:02 0:00:04 798k^C
[greearb@ben-dt2 curl]$ ./src/curl -o /dev/null tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
100 5304k 100 5304k 0 0 2482k 0 0:00:02 0:00:02 --:--:-- 2482k

[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 8k -T "config.log" tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
   0 10.3M 0 0 0 34304 0 7485 0:12:05 0:00:04 0:12:01 7488^C
[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 80k -T "config.log" tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
   2 10.3M 0 0 5 273k 0 80964 0:01:07 0:00:03 0:01:04 80966^C
[greearb@ben-dt2 curl]$ ./src/curl --limit-rate 800k -T "config.log" tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
  26 10.3M 0 0 52 2806k 0 799k 0:00:06 0:00:03 0:00:03 799k^C
[greearb@ben-dt2 curl]$ ./src/curl -T "config.log" tftp://192.168.100.6/bthelper
   % Total % Received % Xferd Average Speed Time Time Time Current
                                  Dload Upload Total Spent Left Speed
  50 10.3M 0 0 100 5304k 0 2458k 0:00:02 0:00:02 --:--:-- 2458k

Thanks,
Ben

-- 
Ben Greear <greearb_at_candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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