On Mon, Jun 02, 2014 at 08:50:54AM -0400, Jon Lederman wrote: > I am trying to mimic the following command line curl request in libcurl > programatically in C/C++. Instead of reading data from a file though, I want > to send binary data from a buffer in memory: > curl "https://website.net:443/Command?appId=XXX&appKey=YYY5&id=ZZZ"; -H > "Content-Type: AAA;codec=BBB" -H "Accept-Language: ENUS" -H > "Transfer-Encoding: chunked" -H "Accept: application/xml" -H "Accept-Topic: > New" -k --data-binary @data.bin -v > > I am using post-callback.c as a model. I am have set up the headers > correctly. What I don’t fully understand is how to use READFUNCTION. When I > use the technique in post-callback, I get the following error below. Could > you point me to an example of how to use READFUNCTION with binary data from a > buffer? I would like to see more examples.
There are 12 example programs using CURLOPT_READFUNCTION in docs/examples/. Also, the --libcurl curl option will write a little example program for you, although not the callback functions. > Thanks in advance. > > < > <html> > <head> > <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/> > <title>Error 500 x-a-sessionidf38693fc-e97b-4d43-abea-907790367183 > Received QueryRetry: 2 AUDIO_INFO</title> > </head> > <body><h2>HTTP ERROR 500</h2> > <p>Problem accessing /XXX. Reason: > <pre> x-XXX-sessionidf38693fc-e97b-4d43-abea-907790367183 > Received QueryRetry: 2 AUDIO_INFO</pre></p><hr /><i><small>Powered by > Jetty://</small></i><br/> This likely means that the server didn't like what it was sent and returned an error. Try comparing the output of libcurl (using a debug callback or network trace tool) with a successful transfer by a browser or other and see where the differences lie. >>> Dan ------------------------------------------------------------------- List admin: http://cool.haxx.se/list/listinfo/curl-library Etiquette: http://curl.haxx.se/mail/etiquette.html
