Thanks everyone! This makes way more sense now. I didn’t realize libcurl specify path required the file handle upfront.
Tried your suggestions and got it working with `fopen()` + `CURLOPT_READDATA`. Still weird that the docs don’t scream "YOU NEED A FILE HANDLE" though.
Quick follow-up: What’s the best way to handle errors if `fopen()` fails? Should I just bail out, or is there a libcurl-specific way to handle it?
Also, big thanks for the Windows/Linux tips—saved me a ton of time!
Tried your suggestions and got it working with `fopen()` + `CURLOPT_READDATA`. Still weird that the docs don’t scream "YOU NEED A FILE HANDLE" though.
Quick follow-up: What’s the best way to handle errors if `fopen()` fails? Should I just bail out, or is there a libcurl-specific way to handle it?
Also, big thanks for the Windows/Linux tips—saved me a ton of time!