Re: Confusing output when using `--retry-connrefused`
Date: Thu, 19 Mar 2020 08:30:48 -0400
On Thu, Mar 19, 2020 at 8:17 AM Matthias Endler via curl-users <
curl-users_at_cool.haxx.se> wrote:
> Something is odd when I try to use `--retry-connrefused`.
>
> Consider this request:
>
> ```
>
> curl --write-out '%{http_code}' --output /dev/null --silent http://example.com
>
> 200
>
> ```
>
> Adding --retry-connrefused 1, I get the following output:
>
> ```
>
> curl --write-out '%{http_code}' --output /dev/null --silent --retry-connrefused 1 http://example.com
>
> --retry-connrefused doesn't expect a value, so your commandline is the
equivalent of writing:
curl --write-out '%{http_code}' --output /dev/null --silent
--retry-connrefused http://0.0.0.1 http://example.com
curl writes out:
1) the empty response body from http://0.0.0.1 to /dev/null (that's what
you asked it to do)
2) "000" as the response code from the failed request to http://0.0.0.1
3) the output of http://example.com to stdout (because there's no other
instructions for where to write the body).
4) "200" as the response code from the successful request to
http://example.com
>
> 000<!doctype html>
> <html>
> <head>
> <title>Example Domain</title>
> <meta charset="utf-8" />
> <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
> <meta name="viewport" content="width=device-width, initial-scale=1" />
> <style type="text/css">
> body {
> background-color: #f0f0f2;
> margin: 0;
> padding: 0;
> font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
> }
> div {
> width: 600px;
> margin: 5em auto;
> padding: 2em;
> background-color: #fdfdff;
> border-radius: 0.5em;
> box-shadow: 2px 3px 7px 2px rgba(0,0,0,0.02);
> }
> a:link, a:visited {
> color: #38488f;
> text-decoration: none;
> }
> @media (max-width: 700px) {
> div {
> margin: 0 auto;
> width: auto;
> }
> }
> </style>
> </head>
> <body>
> <div>
> <h1>Example Domain</h1>
> <p>This domain is for use in illustrative examples in documents. You may use this
> domain in literature without prior coordination or asking for permission.</p>
> <p>More information...</p>
> </div>
> </body>
> </html>
> 200%
>
> ```
>
> Is that expected behavior or did I trigger a bug?
>
> Cheers,
>
> Matthias
>
>
>
>
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Received on 2020-03-19