On Thu, 4 Nov 2010, Lucas wrote:

> I'm doing a simple file download and have it working fine, except that I
> have to 'hardcode' the local filename, because otherwise I seem unable to
> have the download work. I'm basing this on the example found at
> http://curl.haxx.se/libcurl/c/ftpget.html.

This problem seems to be entirely within your program and C programming, and
isn't really a libcurl issue...

> This works fine, but if I want to instead assign a variable value to the
> filename, it doesn't work. I've tried various ways of getting a variable
> string into the filename of the struct FtpFile and am obviously missing
> something simple:
>
> char categoryName[32];
> int categoryNumber;
> char buffer[128];
>
> sprintf(buffer, "%s_%d.zip", categoryName, categoryNumber);
> ftpfile.filename = buffer;

This should work, assuming that buffer is still around when you want to read
out the file name. And beware of buffer overflow.

> strcpy(ftpfile.filename, buffer)

That's probably not what you want.

> A related question is how do I download a file using it's existing filename?

Well, you give libcurl the full URL so surely you know the filename?

> The requested filename in the URL call allows me to use variable names, so
> is there an option to simply save the file locally using the same name
> without having to specify the name directly, which is what's causing my
> problem above?

No, there's no such magic option.

-- 
  / daniel.haxx.se
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