Re: How to printout CURL_VERSION_UNIX_SOCKETS

From: jian he via curl-library <curl-library_at_lists.haxx.se>
Date: Sun, 2 Oct 2022 22:56:43 +0530

On Sun, Oct 2, 2022 at 8:21 PM Matthew Bobowski via curl-library <
curl-library_at_lists.haxx.se> wrote:

> Jian,
>
>
>
> I’m not sure what you’re trying to accomplish. CURL_VERSION_UNIX_SOCKETS
> is a bit flag for features – not a version.
>
>
>
> Try this:
>
> auto data = curl_version_info(CURLVERSION_NOW);
>
> printf("Curl version: %s\n", data->version);
>
>
>
> if (data->features & CURL_VERSION_UNIX_SOCKETS)
>
> printf("Curl supports UNIX sockets.\n");
>
> else
>
> printf("Curl does NOT support UNIX sockets.\n");
>
>
>
>
>
> -Matt
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows
>
>
>
> *From: *jian he via curl-library <curl-library_at_lists.haxx.se>
> *Sent: *Sunday, October 2, 2022 5:39 AM
> *To: *curl-library_at_lists.haxx.se
> *Cc: *jian he <jian.universality_at_gmail.com>
> *Subject: *How to printout CURL_VERSION_UNIX_SOCKETS
>
>
>
> Hello world.
>
>
> In curl.h
>
> #define CURL_VERSION_UNIX_SOCKETS (1<<19) /* Unix domain sockets support */
>
>
>
> In https://curl.se/libcurl/c/curl_version_info.html
>
> CURL_VERSION_UNIX_SOCKETS
>
> libcurl was built with support for Unix domain sockets. (Added in 7.40.0)
>
> So from here, we can print out CURL_VERSION_UNIX_SOCKETS to 7.40.0?
>
>
>
> Here is what I tried:
>
> printf("CURL_VERSION_UNIX_SOCKETS version: %u.%u.%u\n"
> ,(CURL_VERSION_UNIX_SOCKETS >> 19 ) & 0xff
> ,(CURL_VERSION_UNIX_SOCKETS >> 16) & 0xff
> ,(CURL_VERSION_UNIX_SOCKETS >> 8) & 0xff
> );
>
>
>
> it print out: CURL_VERSION_UNIX_SOCKETS version: 1.8.0
>
>
>
> So it failed.
>
> overall, I don't understand: #define CURL_VERSION_UNIX_SOCKETS (1<<19) /*
> Unix domain sockets support */
>
>
>
>
>
> --
>
> I recommend David Deutsch's <<The Beginning of Infinity>>
>
>
>
> Jian
>
>
>
>
>
>
> --
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>

OK. now I got it. Thanks.

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Received on 2022-10-02