On Mon, 17 Dec 2012, Jeff Pohlmeyer wrote:

>> if I have a const char* string literal in CURLOPT_POSTFIELDS it works. If
>> it's not coming from a literal, it fails.
>
> Are you using a local variable to store the paramsString? I think that won't
> work, the string must remain in scope until curl_easy_perform() returns.

... at least if a version earlier than 7.17.0 is used. After that version
libcurl copies provided strings.

-- 
  / daniel.haxx.se
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