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authorRick Deist <dreckard@users.noreply.github.com>2018-03-17 20:10:04 +0100
committerDaniel Stenberg <daniel@haxx.se>2018-03-17 20:44:14 +0100
commitd95f3dc0b117b0677700dae8dd51145c9b6f2d08 (patch)
treef1f044908f412bc3a946f61fa611884c0ff1611b /tests/unit
parentfb4f568b1e090c884eb63c3419322b558a38138e (diff)
downloadcurl-d95f3dc0b117b0677700dae8dd51145c9b6f2d08.tar.gz
resolve: add CURLOPT_DNS_SHUFFLE_ADDRESSES
This patch adds CURLOPT_DNS_SHUFFLE_ADDRESSES to explicitly request shuffling of IP addresses returned for a hostname when there is more than one. This is useful when the application knows that a round robin approach is appropriate and is willing to accept the consequences of potentially discarding some preference order returned by the system's implementation. Closes #1694
Diffstat (limited to 'tests/unit')
-rw-r--r--tests/unit/Makefile.inc6
-rw-r--r--tests/unit/unit1608.c70
2 files changed, 75 insertions, 1 deletions
diff --git a/tests/unit/Makefile.inc b/tests/unit/Makefile.inc
index 9a19f51d1..f77da7588 100644
--- a/tests/unit/Makefile.inc
+++ b/tests/unit/Makefile.inc
@@ -9,7 +9,8 @@ UNITPROGS = unit1300 unit1301 unit1302 unit1303 unit1304 unit1305 unit1307 \
unit1308 unit1309 unit1323 \
unit1330 unit1394 unit1395 unit1396 unit1397 unit1398 \
unit1399 \
- unit1600 unit1601 unit1602 unit1603 unit1604 unit1605 unit1606 unit1607
+ unit1600 unit1601 unit1602 unit1603 unit1604 unit1605 unit1606 unit1607 \
+ unit1608
unit1300_SOURCES = unit1300.c $(UNITFILES)
unit1300_CPPFLAGS = $(AM_CPPFLAGS)
@@ -88,3 +89,6 @@ unit1606_CPPFLAGS = $(AM_CPPFLAGS)
unit1607_SOURCES = unit1607.c $(UNITFILES)
unit1607_CPPFLAGS = $(AM_CPPFLAGS)
+
+unit1608_SOURCES = unit1608.c $(UNITFILES)
+unit1608_CPPFLAGS = $(AM_CPPFLAGS)
diff --git a/tests/unit/unit1608.c b/tests/unit/unit1608.c
new file mode 100644
index 000000000..9ae474ba9
--- /dev/null
+++ b/tests/unit/unit1608.c
@@ -0,0 +1,70 @@
+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2018, 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 https://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 "curlcheck.h"
+
+#include "hostip.h"
+
+#define NUM_ADDRS 8
+static struct Curl_addrinfo addrs[NUM_ADDRS];
+
+static CURLcode unit_setup(void)
+{
+ int i;
+ for(i = 0; i < NUM_ADDRS - 1; i++) {
+ addrs[i].ai_next = &addrs[i + 1];
+ }
+
+ return CURLE_OK;
+}
+
+static void unit_stop(void)
+{
+
+}
+
+UNITTEST_START
+{
+ int i;
+ CURLcode code;
+ struct Curl_addrinfo* addrhead = addrs;
+
+ struct Curl_easy *easy = curl_easy_init();
+ abort_unless(easy, "out of memory");
+
+ code = curl_easy_setopt(easy, CURLOPT_DNS_SHUFFLE_ADDRESSES, 1L);
+ abort_unless(code == CURLE_OK, "curl_easy_setopt failed");
+
+ /* Shuffle repeatedly and make sure that the list changes */
+ for(i = 0; i < 10; i++) {
+ if(CURLE_OK != Curl_shuffle_addr(easy, &addrhead))
+ break;
+ if(addrhead != addrs)
+ break;
+ }
+
+ curl_easy_cleanup(easy);
+
+ abort_unless(addrhead != addrs, "addresses are not being reordered");
+
+ return 0;
+}
+UNITTEST_STOP