On Mon, Jun 02, 2014 at 05:17:47PM -0400, Jon Lederman wrote:
> Hi,
>
> I am using chunked encoding. I looked at the debug output. It should be transferring 1 byte with each chunk. Yet the chunk size seems to indicate 31 hex=49. Why should this be? See below:
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 74 0d 0a 1..t..

0x31 is ASCII '1' which means one byte, which seems to be correct and matches
what you are expecting.

> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 68 0d 0a 1..h..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 69 0d 0a 1..i..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 73 0d 0a 1..s..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 69 0d 0a 1..i..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 73 0d 0a 1..s..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 77 0d 0a 1..w..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 68 0d 0a 1..h..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 61 0d 0a 1..a..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 74 0d 0a 1..t..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 77 0d 0a 1..w..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 65 0d 0a 1..e..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 70 0d 0a 1..p..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 6f 0d 0a 1..o..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 73 0d 0a 1..s..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 74 0d 0a 1..t..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 74 0d 0a 1..t..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 6f 0d 0a 1..o..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 74 0d 0a 1..t..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 68 0d 0a 1..h..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 65 0d 0a 1..e..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 73 0d 0a 1..s..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 69 0d 0a 1..i..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 6c 0d 0a 1..l..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 6c 0d 0a 1..l..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 79 0d 0a 1..y..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 77 0d 0a 1..w..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 65 0d 0a 1..e..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 62 0d 0a 1..b..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 20 0d 0a 1.. ..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 73 0d 0a 1..s..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 65 0d 0a 1..e..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 72 0d 0a 1..r..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 76 0d 0a 1..v..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 65 0d 0a 1..e..
> => Send data, 0000000006 bytes (0x00000006)
> 0000: 31 0d 0a 72 0d 0a 1..r..
> => Send data, 0000000005 bytes (0x00000005)
> 0000: 30 0d 0a 0d 0a 0....
> On Jun 2, 2014, at 3:07 PM, Dan Fandrich <dan_at_coneharvesters.com> wrote:
>
> > 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
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Received on 2014-06-02