zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/examples/post-callback.c b/ap/lib/libcurl/curl-7.54.1/docs/examples/post-callback.c
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index 0000000..dbf2491
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+++ b/ap/lib/libcurl/curl-7.54.1/docs/examples/post-callback.c
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+/***************************************************************************
+ * _ _ ____ _
+ * Project ___| | | | _ \| |
+ * / __| | | | |_) | |
+ * | (__| |_| | _ <| |___
+ * \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2015, 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.
+ *
+ ***************************************************************************/
+/* <DESC>
+ * An example source code that issues a HTTP POST and we provide the actual
+ * data through a read callback.
+ * </DESC>
+ */
+#include <stdio.h>
+#include <string.h>
+#include <curl/curl.h>
+
+static const char data[]="this is what we post to the silly web server";
+
+struct WriteThis {
+ const char *readptr;
+ long sizeleft;
+};
+
+static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
+{
+ struct WriteThis *pooh = (struct WriteThis *)userp;
+
+ if(size*nmemb < 1)
+ return 0;
+
+ if(pooh->sizeleft) {
+ *(char *)ptr = pooh->readptr[0]; /* copy one single byte */
+ pooh->readptr++; /* advance pointer */
+ pooh->sizeleft--; /* less data left */
+ return 1; /* we return 1 byte at a time! */
+ }
+
+ return 0; /* no more data left to deliver */
+}
+
+int main(void)
+{
+ CURL *curl;
+ CURLcode res;
+
+ struct WriteThis pooh;
+
+ pooh.readptr = data;
+ pooh.sizeleft = (long)strlen(data);
+
+ /* In windows, this will init the winsock stuff */
+ res = curl_global_init(CURL_GLOBAL_DEFAULT);
+ /* Check for errors */
+ if(res != CURLE_OK) {
+ fprintf(stderr, "curl_global_init() failed: %s\n",
+ curl_easy_strerror(res));
+ return 1;
+ }
+
+ /* get a curl handle */
+ curl = curl_easy_init();
+ if(curl) {
+ /* First set the URL that is about to receive our POST. */
+ curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/index.cgi");
+
+ /* Now specify we want to POST data */
+ curl_easy_setopt(curl, CURLOPT_POST, 1L);
+
+ /* we want to use our own read function */
+ curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
+
+ /* pointer to pass to our read function */
+ curl_easy_setopt(curl, CURLOPT_READDATA, &pooh);
+
+ /* get verbose debug output please */
+ curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+
+ /*
+ If you use POST to a HTTP 1.1 server, you can send data without knowing
+ the size before starting the POST if you use chunked encoding. You
+ enable this by adding a header like "Transfer-Encoding: chunked" with
+ CURLOPT_HTTPHEADER. With HTTP 1.0 or without chunked transfer, you must
+ specify the size in the request.
+ */
+#ifdef USE_CHUNKED
+ {
+ struct curl_slist *chunk = NULL;
+
+ chunk = curl_slist_append(chunk, "Transfer-Encoding: chunked");
+ res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
+ /* use curl_slist_free_all() after the *perform() call to free this
+ list again */
+ }
+#else
+ /* Set the expected POST size. If you want to POST large amounts of data,
+ consider CURLOPT_POSTFIELDSIZE_LARGE */
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, pooh.sizeleft);
+#endif
+
+#ifdef DISABLE_EXPECT
+ /*
+ Using POST with HTTP 1.1 implies the use of a "Expect: 100-continue"
+ header. You can disable this header with CURLOPT_HTTPHEADER as usual.
+ NOTE: if you want chunked transfer too, you need to combine these two
+ since you can only set one list of headers with CURLOPT_HTTPHEADER. */
+
+ /* A less good option would be to enforce HTTP 1.0, but that might also
+ have other implications. */
+ {
+ struct curl_slist *chunk = NULL;
+
+ chunk = curl_slist_append(chunk, "Expect:");
+ res = curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
+ /* use curl_slist_free_all() after the *perform() call to free this
+ list again */
+ }
+#endif
+
+ /* Perform the request, res will get the return code */
+ 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);
+ }
+ curl_global_cleanup();
+ return 0;
+}