Download file libcurl

Thanks in advance! The example you are using is wrong. That's why closing fp causes problems - it's not even opened. Updated: as suggested by rsethc types. Just for those interested you can avoid writing custom function by passing NULL as last parameter if you do not intend to do extra processing of returned data. In this case default internal function is used. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

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Visit chat. Related 5. Hot Network Questions. With synchronous downloading, all requests are executed in a strict sequence. First of all, we need to initialize global libcurl variables by calling the following function:. We start with creating a curl easy handle for setting connection options and transferring data.

At this step, we set options for easy handles. Next, we need to deal with SSL connections. Note : Nevertheless, curl provides multiple options for verifying server certificates.

By default, curl will print downloaded data to the console, which is useful for testing purposes. Once the request is executed, libcurl will check everything for errors and output the error string to the std::cerr object. In asynchronous file downloading, all requests are executed in an arbitrary order.

For asynchronous downloading, we still need to create curl easy handles and set options for them. So the first seven steps will be the same as for synchronous downloading. However, asynchronous downloading in libcurl can be achieved through the curl-multi interface. Improve this answer. P Anton. P 2, 3 3 gold badges 19 19 silver badges 40 40 bronze badges. This link shows how to store data in memory and not in a file.

It seems that i use the same functions to get data, the difference is that they store the data in memory. Yes, what I meant is that apart from the memory storage they are using what I am using to fetch data and store it. I don't see the difference in the fetching, am I missing something? I am using that function, look at the code I posted. I am a beginner on libcurl so don't be afraid to tell me obvious things if I am missing something.

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