[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/docs/examples/ftpsget.c b/ap/lib/libcurl/curl-7.86.0/docs/examples/ftpsget.c
new file mode 100755
index 0000000..521ad5c
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/docs/examples/ftpsget.c
@@ -0,0 +1,101 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  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 <stdio.h>
+
+#include <curl/curl.h>
+
+/* <DESC>
+ * Get a single file from an FTPS server.
+ * </DESC>
+ */
+
+struct FtpFile {
+  const char *filename;
+  FILE *stream;
+};
+
+static size_t my_fwrite(void *buffer, size_t size, size_t nmemb,
+                        void *stream)
+{
+  struct FtpFile *out = (struct FtpFile *)stream;
+  if(!out->stream) {
+    /* open file for writing */
+    out->stream = fopen(out->filename, "wb");
+    if(!out->stream)
+      return -1; /* failure, cannot open file to write */
+  }
+  return fwrite(buffer, size, nmemb, out->stream);
+}
+
+
+int main(void)
+{
+  CURL *curl;
+  CURLcode res;
+  struct FtpFile ftpfile = {
+    "yourfile.bin", /* name to store the file as if successful */
+    NULL
+  };
+
+  curl_global_init(CURL_GLOBAL_DEFAULT);
+
+  curl = curl_easy_init();
+  if(curl) {
+    /*
+     * You better replace the URL with one that works! Note that we use an
+     * FTP:// URL with standard explicit FTPS. You can also do FTPS:// URLs if
+     * you want to do the rarer kind of transfers: implicit.
+     */
+    curl_easy_setopt(curl, CURLOPT_URL,
+                     "ftp://user@server/home/user/file.txt");
+    /* Define our callback to get called when there's data to be written */
+    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_fwrite);
+    /* Set a pointer to our struct to pass to the callback */
+    curl_easy_setopt(curl, CURLOPT_WRITEDATA, &ftpfile);
+
+    /* We activate SSL and we require it for both control and data */
+    curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_ALL);
+
+    /* Switch on full protocol/debug output */
+    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+
+    res = curl_easy_perform(curl);
+
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+
+    if(CURLE_OK != res) {
+      /* we failed */
+      fprintf(stderr, "curl told us %d\n", res);
+    }
+  }
+
+  if(ftpfile.stream)
+    fclose(ftpfile.stream); /* close the local file */
+
+  curl_global_cleanup();
+
+  return 0;
+}