1 files changed, 18 insertions, 0 deletions
diff --git a/lib/url.c b/lib/url.c
index 395055f4e..c89234d74 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -748,6 +748,13 @@ CURLcode Curl_init_userdefined(struct UserDefined *set)
   set->chunk_bgn      = ZERO_NULL;
   set->chunk_end      = ZERO_NULL;
 
+  /* tcp keepalives are disabled by default, but provide reasonable values for
+   * the interval and idle times.
+   */
+  set->tcp_keepalive = 0;
+  set->tcp_keepintvl = 60;
+  set->tcp_keepidle = 60;
+
   return res;
 }
 
@@ -811,6 +818,7 @@ CURLcode Curl_open(struct SessionHandle **curl)
        multi stack. */
   }
 
+
   if(res) {
     Curl_resolver_cleanup(data->state.resolver);
     if(data->state.headerbuff)
@@ -2545,6 +2553,16 @@ CURLcode Curl_setopt(struct SessionHandle *data, CURLoption option,
     result = Curl_set_dns_servers(data, va_arg(param, char *));
     break;
 
+  case CURLOPT_TCP_KEEPALIVE:
+    data->set.tcp_keepalive = (0 != va_arg(param, long))?TRUE:FALSE;
+    break;
+  case CURLOPT_TCP_KEEPIDLE:
+    data->set.tcp_keepidle = va_arg(param, long);
+    break;
+  case CURLOPT_TCP_KEEPINTVL:
+    data->set.tcp_keepintvl = va_arg(param, long);
+    break;
+
   default:
     /* unknown tag and its companion, just ignore: */
     result = CURLE_UNKNOWN_OPTION;