[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit

Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/examples/smtp-multi.c b/ap/lib/libcurl/curl-7.54.1/docs/examples/smtp-multi.c
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+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2016, 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>
+ * SMTP example using the multi interface
+ * </DESC>
+ */
+
+#include <string.h>
+#include <curl/curl.h>
+
+/* This is an example showing how to send mail using libcurl's SMTP
+ * capabilities. It builds on the smtp-mail.c example to demonstrate how to use
+ * libcurl's multi interface.
+ *
+ * Note that this example requires libcurl 7.20.0 or above.
+ */
+
+#define FROM     "<sender@example.com>"
+#define TO       "<recipient@example.com>"
+#define CC       "<info@example.com>"
+
+#define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
+
+static const char *payload_text[] = {
+  "Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n",
+  "To: " TO "\r\n",
+  "From: " FROM "(Example User)\r\n",
+  "Cc: " CC "(Another example User)\r\n",
+  "Message-ID: <dcd7cb36-11db-487a-9f3a-e652a9458efd@"
+  "rfcpedant.example.org>\r\n",
+  "Subject: SMTP multi example message\r\n",
+  "\r\n", /* empty line to divide headers from body, see RFC5322 */
+  "The body of the message starts here.\r\n",
+  "\r\n",
+  "It could be a lot of lines, could be MIME encoded, whatever.\r\n",
+  "Check RFC5322.\r\n",
+  NULL
+};
+
+struct upload_status {
+  int lines_read;
+};
+
+static size_t payload_source(void *ptr, size_t size, size_t nmemb, void *userp)
+{
+  struct upload_status *upload_ctx = (struct upload_status *)userp;
+  const char *data;
+
+  if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
+    return 0;
+  }
+
+  data = payload_text[upload_ctx->lines_read];
+
+  if(data) {
+    size_t len = strlen(data);
+    memcpy(ptr, data, len);
+    upload_ctx->lines_read++;
+
+    return len;
+  }
+
+  return 0;
+}
+
+static struct timeval tvnow(void)
+{
+  struct timeval now;
+
+  /* time() returns the value of time in seconds since the epoch */
+  now.tv_sec = (long)time(NULL);
+  now.tv_usec = 0;
+
+  return now;
+}
+
+static long tvdiff(struct timeval newer, struct timeval older)
+{
+  return (newer.tv_sec - older.tv_sec) * 1000 +
+    (newer.tv_usec - older.tv_usec) / 1000;
+}
+
+int main(void)
+{
+  CURL *curl;
+  CURLM *mcurl;
+  int still_running = 1;
+  struct timeval mp_start;
+  struct curl_slist *recipients = NULL;
+  struct upload_status upload_ctx;
+
+  upload_ctx.lines_read = 0;
+
+  curl_global_init(CURL_GLOBAL_DEFAULT);
+
+  curl = curl_easy_init();
+  if(!curl)
+    return 1;
+
+  mcurl = curl_multi_init();
+  if(!mcurl)
+    return 2;
+
+  /* This is the URL for your mailserver */
+  curl_easy_setopt(curl, CURLOPT_URL, "smtp://mail.example.com");
+
+  /* Note that this option isn't strictly required, omitting it will result in
+   * libcurl sending the MAIL FROM command with empty sender data. All
+   * autoresponses should have an empty reverse-path, and should be directed
+   * to the address in the reverse-path which triggered them. Otherwise, they
+   * could cause an endless loop. See RFC 5321 Section 4.5.5 for more details.
+   */
+  curl_easy_setopt(curl, CURLOPT_MAIL_FROM, FROM);
+
+  /* Add two recipients, in this particular case they correspond to the
+   * To: and Cc: addressees in the header, but they could be any kind of
+   * recipient. */
+  recipients = curl_slist_append(recipients, TO);
+  recipients = curl_slist_append(recipients, CC);
+  curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
+
+  /* We're using a callback function to specify the payload (the headers and
+   * body of the message). You could just use the CURLOPT_READDATA option to
+   * specify a FILE pointer to read from. */
+  curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
+  curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
+  curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
+
+  /* Tell the multi stack about our easy handle */
+  curl_multi_add_handle(mcurl, curl);
+
+  /* Record the start time which we can use later */
+  mp_start = tvnow();
+
+  /* We start some action by calling perform right away */
+  curl_multi_perform(mcurl, &still_running);
+
+  while(still_running) {
+    struct timeval timeout;
+    fd_set fdread;
+    fd_set fdwrite;
+    fd_set fdexcep;
+    int maxfd = -1;
+    int rc;
+    CURLMcode mc; /* curl_multi_fdset() return code */
+
+    long curl_timeo = -1;
+
+    /* Initialise the file descriptors */
+    FD_ZERO(&fdread);
+    FD_ZERO(&fdwrite);
+    FD_ZERO(&fdexcep);
+
+    /* Set a suitable timeout to play around with */
+    timeout.tv_sec = 1;
+    timeout.tv_usec = 0;
+
+    curl_multi_timeout(mcurl, &curl_timeo);
+    if(curl_timeo >= 0) {
+      timeout.tv_sec = curl_timeo / 1000;
+      if(timeout.tv_sec > 1)
+        timeout.tv_sec = 1;
+      else
+        timeout.tv_usec = (curl_timeo % 1000) * 1000;
+    }
+
+    /* get file descriptors from the transfers */
+    mc = curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
+
+    if(mc != CURLM_OK) {
+      fprintf(stderr, "curl_multi_fdset() failed, code %d.\n", mc);
+      break;
+    }
+
+    /* On success the value of maxfd is guaranteed to be >= -1. We call
+       select(maxfd + 1, ...); specially in case of (maxfd == -1) there are
+       no fds ready yet so we call select(0, ...) --or Sleep() on Windows--
+       to sleep 100ms, which is the minimum suggested value in the
+       curl_multi_fdset() doc. */
+
+    if(maxfd == -1) {
+#ifdef _WIN32
+      Sleep(100);
+      rc = 0;
+#else
+      /* Portable sleep for platforms other than Windows. */
+      struct timeval wait = { 0, 100 * 1000 }; /* 100ms */
+      rc = select(0, NULL, NULL, NULL, &wait);
+#endif
+    }
+    else {
+      /* Note that on some platforms 'timeout' may be modified by select().
+         If you need access to the original value save a copy beforehand. */
+      rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
+    }
+
+    if(tvdiff(tvnow(), mp_start) > MULTI_PERFORM_HANG_TIMEOUT) {
+      fprintf(stderr,
+              "ABORTING: Since it seems that we would have run forever.\n");
+      break;
+    }
+
+    switch(rc) {
+    case -1:  /* select error */
+      break;
+    case 0:   /* timeout */
+    default:  /* action */
+      curl_multi_perform(mcurl, &still_running);
+      break;
+    }
+  }
+
+  /* Free the list of recipients */
+  curl_slist_free_all(recipients);
+
+  /* Always cleanup */
+  curl_multi_remove_handle(mcurl, curl);
+  curl_multi_cleanup(mcurl);
+  curl_easy_cleanup(curl);
+  curl_global_cleanup();
+
+  return 0;
+}