request assistance resolving a std.net.curl segmentation fault

[kdevel]

On Friday, 19 May 2023 at 23:36:28 UTC, anonymouse wrote:
> [...]
> The reason I used a while loop was to detect loss of internet 
> connection and resume the process once the connection is 
> re-established.

What if the internet connection is not re-established within an 
reasonable amount of time? What if the resource is no longer 
available on the server (HTTP eror 404 [1])? If there is an 
interactive user: Wouldn't it be better have the user restart the 
download at his discretion?

> What would have been a better approach?

That depends on where you want to use that download function. If 
it is intended to download a full software update of a modern 
e-vehicle I would suggest not to use such an endless loop. I 
would limit the retries to a low single-digit number greater than 
one and of log the event.

[1] The 404 or other errors are not detected by default.

```
curl.set(CurlOption.failonerror, 1);
```

must be set. In case of error an exception is thrown. This 
unfortunately does not contain the required error information. It 
seems that one must supply an error buffer

```
ubyte [<?>] buf;
curl.set (CurlOption.errorbuffer, buf.ptr);
```

to store that result.