[Global]: loading init

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

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+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLINFO_USED_PROXY
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_NOPROXY (3)
+  - CURLOPT_PROXY (3)
+  - curl_easy_getinfo (3)
+  - curl_easy_setopt (3)
+---
+
+# NAME
+
+CURLINFO_USED_PROXY - whether the transfer used a proxy
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_USED_PROXY,
+                           long *authp);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a long. It gets set to zero set if no proxy was used in the
+previous transfer or a non-zero value if a proxy was used.
+
+# PROTOCOLS
+
+HTTP(S)
+
+# EXAMPLE
+
+~~~c
+int main(int argc, char *argv[])
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+    curl_easy_setopt(curl, CURLOPT_PROXY, "http://127.0.0.1:80");
+    curl_easy_setopt(curl, CURLOPT_NOPROXY, "example.com");
+
+    res = curl_easy_perform(curl);
+
+    if(!res) {
+      /* extract the available proxy authentication types */
+      long used;
+      res = curl_easy_getinfo(curl, CURLINFO_USED_PROXY, &used);
+      if(!res) {
+        printf("The proxy was %sused\n", used ? "": "NOT ");
+      }
+    }
+    curl_easy_cleanup(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Added in 8.7.0
+
+# RETURN VALUE
+
+Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.