curl-library
Re: Problem using RECORDFUNCTION
Date: Mon, 2 Jun 2014 17:17:47 -0400
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..
=> 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 donąt 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