[Feature][ZXW-88]merge P50 version

Only Configure: No
Affected branch: master
Affected module: unknown
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I34667719d9e0e7e29e8e4368848601cde0a48408
diff --git a/ap/lib/libcurl/curl-7.86.0/tests/unit/unit1323.c b/ap/lib/libcurl/curl-7.86.0/tests/unit/unit1323.c
new file mode 100755
index 0000000..b089282
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/tests/unit/unit1323.c
@@ -0,0 +1,68 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2022, 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.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.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+#include "curlcheck.h"
+
+#include "timeval.h"
+
+static CURLcode unit_setup(void)
+{
+  return CURLE_OK;
+}
+
+static void unit_stop(void)
+{
+
+}
+
+struct a {
+  struct curltime first;
+  struct curltime second;
+  time_t result;
+};
+
+UNITTEST_START
+{
+  struct a tests[] = {
+    { {36762, 8345 }, {36761, 995926 }, 13 },
+    { {36761, 995926 }, {36762, 8345 }, -13 },
+    { {36761, 995926 }, {0, 0}, 36761995 },
+    { {0, 0}, {36761, 995926 }, -36761995 },
+  };
+  size_t i;
+
+  for(i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
+    timediff_t result = Curl_timediff(tests[i].first, tests[i].second);
+    if(result != tests[i].result) {
+      printf("%d.%06u to %d.%06u got %d, but expected %d\n",
+             tests[i].first.tv_sec,
+             tests[i].first.tv_usec,
+             tests[i].second.tv_sec,
+             tests[i].second.tv_usec,
+             result,
+             tests[i].result);
+      fail("unexpected result!");
+    }
+  }
+}
+UNITTEST_STOP