curl: use new library-side TCP_KEEPALIVE options

Use the new library CURLOPT_TCP_KEEPALIVE rather than disabling this via
the sockopt callback. If --keepalive-time is used, apply the value to
CURLOPT_TCP_KEEPIDLE and CURLOPT_TCP_KEEPINTVL.

1 files changed, 0 insertions, 97 deletions

diff --git a/src/tool_cb_skt.c b/src/tool_cb_skt.c
deleted file mode 100644
index 156c1108e..000000000
--- a/src/tool_cb_skt.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2011, 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
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-#include "setup.h"
-
-#include <curl/curl.h>
-
-#ifdef HAVE_SYS_SOCKET_H
-#  include <sys/socket.h>
-#endif
-
-#define ENABLE_CURLX_PRINTF
-/* use our own printf() functions */
-#include "curlx.h"
-
-#include "tool_cfgable.h"
-#include "tool_msgs.h"
-#include "tool_cb_skt.h"
-
-#include "memdebug.h" /* keep this as LAST include */
-
-/*
-** callback for CURLOPT_SOCKOPTFUNCTION
-*/
-
-int tool_sockopt_cb(void *userdata, curl_socket_t curlfd, curlsocktype purpose)
-{
-  struct Configurable *config = userdata;
-
-  int onoff = 1; /* this callback is only used if we ask for keepalives on the
-                    connection */
-
-#if defined(TCP_KEEPIDLE) || defined(TCP_KEEPINTVL)
-  int keepidle = (int)config->alivetime;
-#endif
-
-  switch(purpose) {
-  case CURLSOCKTYPE_IPCXN:
-    if(setsockopt(curlfd, SOL_SOCKET, SO_KEEPALIVE, (void *)&onoff,
-                  sizeof(onoff)) < 0) {
-      /* don't abort operation, just issue a warning */
-      SET_SOCKERRNO(0);
-      warnf(config, "Could not set SO_KEEPALIVE!\n");
-      return 0;
-    }
-    else {
-      if(config->alivetime) {
-#ifdef TCP_KEEPIDLE
-        if(setsockopt(curlfd, IPPROTO_TCP, TCP_KEEPIDLE, (void *)&keepidle,
-                      sizeof(keepidle)) < 0) {
-          /* don't abort operation, just issue a warning */
-          SET_SOCKERRNO(0);
-          warnf(config, "Could not set TCP_KEEPIDLE!\n");
-          return 0;
-        }
-#endif
-#ifdef TCP_KEEPINTVL
-        if(setsockopt(curlfd, IPPROTO_TCP, TCP_KEEPINTVL, (void *)&keepidle,
-                      sizeof(keepidle)) < 0) {
-          /* don't abort operation, just issue a warning */
-          SET_SOCKERRNO(0);
-          warnf(config, "Could not set TCP_KEEPINTVL!\n");
-          return 0;
-        }
-#endif
-#if !defined(TCP_KEEPIDLE) || !defined(TCP_KEEPINTVL)
-        warnf(config, "Keep-alive functionality somewhat crippled due to "
-              "missing support in your operating system!\n");
-#endif
-      }
-    }
-    break;
-  default:
-    break;
-  }
-
-  return 0;
-}
-