Imported Upstream version 7.59.0

[platform/upstream/curl.git] / docs / examples / externalsocket.c

diff --git a/docs/examples/externalsocket.c b/docs/examples/externalsocket.c
index 918f082..0ac113d 100644 (file)
--- a/docs/examples/externalsocket.c
+++ b/docs/examples/externalsocket.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 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
@@ -38,7 +38,7 @@
 #include <sys/types.h>        /*  socket types              */
 #include <sys/socket.h>       /*  socket definitions        */
 #include <netinet/in.h>
-#include <arpa/inet.h>        /*  inet (3) funtions         */
+#include <arpa/inet.h>        /*  inet (3) functions         */
 #include <unistd.h>           /*  misc. Unix functions      */
 #endif
 
@@ -58,6 +58,13 @@ static size_t write_data(void *ptr, size_t size, size_t nmemb, void *stream)
   return written;
 }
 
+static int closecb(void *clientp, curl_socket_t item)
+{
+  (void)clientp;
+  printf("libcurl wants to close %d now\n", (int)item);
+  return 0;
+}
+
 static curl_socket_t opensocket(void *clientp,
                                 curlsocktype purpose,
                                 struct curl_sockaddr *address)
@@ -137,6 +144,10 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket);
     curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sockfd);
 
+    /* call this function to close sockets */
+    curl_easy_setopt(curl, CURLOPT_CLOSESOCKETFUNCTION, closecb);
+    curl_easy_setopt(curl, CURLOPT_CLOSESOCKETDATA, &sockfd);
+
     /* call this function to set options for the socket */
     curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);