Question

I’m trying to create a downloader/update tool for my C application.

My updater PDL:

1. Download update.xml from webserver
2. Check update version by using fscanf and storing floating point to a variable
3. Check variable with an if statement if the version is greater than release version defined in application
4. Download update if true
5. Display up to date if false

Does C have any built in functions to do this?
Is this possible in C?

Answer 1

cURL (libcurl) would be the easy option:
Download file using libcurl in C/C++
Downloading all files in directory using libcurl
http://curl.haxx.se/

If your software is based on Microsoft Windows, then you can also use Wininet APIs:
http://msdn.microsoft.com/en-us/library/aa385473.aspx