CURLINFO_PRIMARY_IP.3: add example

diff --git a/docs/libcurl/opts/CURLINFO_PRIMARY_IP.3 b/docs/libcurl/opts/CURLINFO_PRIMARY_IP.3
index 9d276ead0dc1c0f530f9282660aea4f91afdab6d..ec859d5d5a6604f4319f1cdd8508a4fef7bbe8c8 100644 (file)
--- a/docs/libcurl/opts/CURLINFO_PRIMARY_IP.3
+++ b/docs/libcurl/opts/CURLINFO_PRIMARY_IP.3
@@ -5,7 +5,7 @@
 .\" *                            | (__| |_| |  _ <| |___
 .\" *                             \___|\___/|_| \_\_____|
 .\" *
-.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2015, 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
 .\" *
 .\" * This software is licensed as described in the file COPYING, which
 .\" * you should have received as part of this distribution. The terms
@@ -38,8 +38,26 @@ The \fBip\fP pointer will be NULL or pointing to private memory you MUST NOT
 free - it gets freed when you call \fIcurl_easy_cleanup(3)\fP on the
 corresponding CURL handle.
 .SH PROTOCOLS
+All network based ones
 .SH EXAMPLE
-TODO
+.nf
+{
+  char *ip;
+
+  curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+
+  /* Perform the request, res will get the return code */
+  res = curl_easy_perform(curl);
+  /* Check for errors */
+  if((res == CURLE_OK) &&
+     !curl_easy_getinfo(curl, CURLINFO_PRIMARY_IP, &ip) && ip) {
+    printf("IP: %s\\n", ip);
+  }
+
+  /* always cleanup */
+  curl_easy_cleanup(curl);
+}
+.fi
 .SH AVAILABILITY
 Added in 7.19.0
 .SH RETURN VALUE