[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/ftpgetresp.c b/ap/lib/libcurl/curl-7.86.0/docs/examples/ftpgetresp.c
new file mode 100755
index 0000000..1bee903
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.86.0/docs/examples/ftpgetresp.c
@@ -0,0 +1,79 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  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>
+ * Similar to ftpget.c but also stores the received response-lines
+ * in a separate file using our own callback!
+ * </DESC>
+ */
+static size_t
+write_response(void *ptr, size_t size, size_t nmemb, void *data)
+{
+  FILE *writehere = (FILE *)data;
+  return fwrite(ptr, size, nmemb, writehere);
+}
+
+#define FTPBODY "ftp-list"
+#define FTPHEADERS "ftp-responses"
+
+int main(void)
+{
+  CURL *curl;
+  CURLcode res;
+  FILE *ftpfile;
+  FILE *respfile;
+
+  /* local file name to store the file as */
+  ftpfile = fopen(FTPBODY, "wb"); /* b is binary, needed on win32 */
+
+  /* local file name to store the FTP server's response lines in */
+  respfile = fopen(FTPHEADERS, "wb"); /* b is binary, needed on win32 */
+
+  curl = curl_easy_init();
+  if(curl) {
+    /* Get a file listing from sunet */
+    curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.example.com/");
+    curl_easy_setopt(curl, CURLOPT_WRITEDATA, ftpfile);
+    /* If you intend to use this on windows with a libcurl DLL, you must use
+       CURLOPT_WRITEFUNCTION as well */
+    curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, write_response);
+    curl_easy_setopt(curl, CURLOPT_HEADERDATA, respfile);
+    res = curl_easy_perform(curl);
+    /* Check for errors */
+    if(res != CURLE_OK)
+      fprintf(stderr, "curl_easy_perform() failed: %s\n",
+              curl_easy_strerror(res));
+
+    /* always cleanup */
+    curl_easy_cleanup(curl);
+  }
+
+  fclose(ftpfile); /* close the local file */
+  fclose(respfile); /* close the response file */
+
+  return 0;
+}