On Thu, 31 Jan 2019, Michael Jungnickl via curl-library wrote:

> #define ZOTERO_PWP_URL "http://127.0.0.1:23116"     //
> scheme://host:port/path
> curl_easy_setopt(curl, CURLOPT_URL,             (char*) ZOTERO_PWP_URL);

> But I can't connect, in this way:

> #define ZOTERO_PWP_URL "http://127.0.0.1"        // scheme://host:port/path
> #define ZOTERO_PWP_PORT                23116
> curl_global_init(CURL_GLOBAL_ALL);
> curl = curl_easy_init();
> curl_easy_setopt(curl, CURLOPT_URL,             (char*) ZOTERO_PWP_URL);
> curl_easy_setopt(curl, CURLOPT_LOCALPORT,        (long) ZOTERO_PWP_PORT);

The documentation explains it:

  CURLOPT_LOCALPORT - set local port number to use for socket

Your two different takes are completely different.

In the first case you connect to TCP port 23116 on address 127.0.0.1 with a
random source port.

In the second case, you connect to TCP port 80 (the default HTTP port) on
address 127.0.0.1 with a fixed source port set to 23116.

I think you might be looking for CURLOPT_PORT, but why not just set it in the
URL as in the first case and be happy with that?

-- 
  / daniel.haxx.se

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Received on 2019-01-31