maint: update deps

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

@@ -0,0 +1,77 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLINFO_ACTIVESOCKET
+Section: 3
+Source: libcurl
+See-also:
+  - CURLINFO_LASTSOCKET (3)
+  - CURLOPT_CONNECT_ONLY (3)
+  - curl_easy_getinfo (3)
+  - curl_easy_setopt (3)
+---
+
+# NAME
+
+CURLINFO_ACTIVESOCKET - get the active socket
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_ACTIVESOCKET,
+                           curl_socket_t *socket);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a curl_socket_t to receive the most recently active socket
+used for the transfer connection by this curl session. If the socket is no
+longer valid, *CURL_SOCKET_BAD* is returned. When you are finished working
+with the socket, you must call curl_easy_cleanup(3) as usual on the easy
+handle and let libcurl close the socket and cleanup other resources associated
+with the handle. This option returns the active socket only after the transfer
+is complete, and is typically used in combination with
+CURLOPT_CONNECT_ONLY(3), which skips the transfer phase.
+
+CURLINFO_ACTIVESOCKET(3) was added as a replacement for
+CURLINFO_LASTSOCKET(3) since that one is not working on all platforms.
+
+# PROTOCOLS
+
+All
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_socket_t sockfd;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    /* Do not do the transfer - only connect to host */
+    curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
+    res = curl_easy_perform(curl);
+
+    /* Extract the socket from the curl handle */
+    res = curl_easy_getinfo(curl, CURLINFO_ACTIVESOCKET, &sockfd);
+
+    if(res != CURLE_OK) {
+      printf("Error: %s\n", curl_easy_strerror(res));
+      return 1;
+    }
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Added in 7.45.0
+
+# RETURN VALUE
+
+Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.