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/*
* Copyright (c) <2002-2005> <Jean-Philippe Barrette-LaPierre>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (curlpp), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file
* WriteFunction option using free function.
* Writing to FILE*
*
*/
#include <curlpp/cURLpp.hpp>
#include <curlpp/Easy.hpp>
#include <curlpp/Options.hpp>
#include <curlpp/Exception.hpp>
#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <cerrno>
/// Callback must be declared static, otherwise it won't link...
size_t WriteCallback(char* ptr, size_t size, size_t nmemb, void *f)
{
FILE *file = (FILE *)f;
return fwrite(ptr, size, nmemb, file);
};
int main(int argc, char *argv[])
{
if(argc < 2)
{
std::cerr << "Example 11: Wrong number of arguments" << std::endl
<< "Example 11: Usage: example11 url [file]"
<< std::endl;
return EXIT_FAILURE;
}
char *url = argv[1];
char *filename = NULL;
if(argc >= 3)
{
filename = argv[2];
}
try
{
curlpp::Cleanup cleaner;
curlpp::Easy request;
/// Set the writer callback to enable cURL to write result in a memory area
curlpp::options::WriteFunctionCurlFunction
myFunction(WriteCallback);
FILE *file = stdout;
if(filename != NULL)
{
file = fopen(filename, "wb");
if(file == NULL)
{
fprintf(stderr, "%s/n", strerror(errno));
return EXIT_FAILURE;
}
}
curlpp::OptionTrait<void *, CURLOPT_WRITEDATA>
myData(file);
request.setOpt(myFunction);
request.setOpt(myData);
/// Setting the URL to retrive.
request.setOpt(new curlpp::options::Url(url));
request.setOpt(new curlpp::options::Verbose(true));
request.perform();
}
catch (curlpp::LogicError & e)
{
std::cout << e.what() << std::endl;
}
catch (curlpp::RuntimeError & e)
{
std::cout << e.what() << std::endl;
}
}
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