[Global]: loading init

deps/curl/docs/libcurl/opts/CURLOPT_PRIVATE.md

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+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_PRIVATE
+Section: 3
+Source: libcurl
+See-also:
+  - CURLINFO_PRIVATE (3)
+  - CURLOPT_STDERR (3)
+  - CURLOPT_VERBOSE (3)
+---
+
+# NAME
+
+CURLOPT_PRIVATE - store a private pointer
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PRIVATE, void *pointer);
+~~~
+
+# DESCRIPTION
+
+Pass a void * as parameter, pointing to data that should be associated with
+this curl handle. The pointer can subsequently be retrieved using
+curl_easy_getinfo(3) with the CURLINFO_PRIVATE(3) option. libcurl itself
+never does anything with this data.
+
+# DEFAULT
+
+NULL
+
+# PROTOCOLS
+
+All
+
+# EXAMPLE
+
+~~~c
+struct private {
+  void *custom;
+};
+
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  struct private secrets;
+  if(curl) {
+    struct private *extracted;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    /* store a pointer to our private struct */
+    curl_easy_setopt(curl, CURLOPT_PRIVATE, &secrets);
+
+    curl_easy_perform(curl);
+
+    /* we can extract the private pointer again too */
+    curl_easy_getinfo(curl, CURLINFO_PRIVATE, &extracted);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Added in 7.10.3
+
+# RETURN VALUE
+
+Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.