On Wed, 27 Feb 2013, ogondza wrote:

> For 7.28 a probably couple of earlier versions this worked just fine:
>
> curl -F "file_input_filed=@/dev/null;filename="
>
> However, from 7.29 it gives "curl: (43) A libcurl function was given a bad
> argument" and sends nothing. This one seems to do the trick:
>
> curl -F "file_input_filed=@;filename="
>
> but it does not work in earlier versions of curl (curl: (26) couldn't open
> file ""). Is there any way to do the same in both versions?

Thanks for this report!

Ack. This is indeed a bug. It was introduced with commit f4cc54cb4746ae[*] in
an attempt to reject specifying a directory there but accidentally we also
removed this ability.

You up to attempting a fix for this?

[*] = https://github.com/bagder/curl/commit/f4cc54cb4746ae5a6d

-- 
  / daniel.haxx.se
-------------------------------------------------------------------
List admin: http://cool.haxx.se/list/listinfo/curl-users
FAQ:        http://curl.haxx.se/docs/faq.html
Etiquette:  http://curl.haxx.se/mail/etiquette.html