quickjs-tart

quickjs-based runtime for wallet-core logic
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imap-append.c (3795B)

      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
      9  *
     10  * This software is licensed as described in the file COPYING, which
     11  * you should have received as part of this distribution. The terms
     12  * are also available at https://curl.se/docs/copyright.html.
     13  *
     14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
     15  * copies of the Software, and permit persons to whom the Software is
     16  * furnished to do so, under the terms of the COPYING file.
     17  *
     18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
     19  * KIND, either express or implied.
     20  *
     21  * SPDX-License-Identifier: curl
     22  *
     23  ***************************************************************************/
     24 
     25 /* <DESC>
     26  * Send email with IMAP
     27  * </DESC>
     28  */
     29 
     30 #include <stdio.h>
     31 #include <string.h>
     32 #include <curl/curl.h>
     33 
     34 /* This is a simple example showing how to send mail using libcurl's IMAP
     35  * capabilities.
     36  *
     37  * Note that this example requires libcurl 7.30.0 or above.
     38  */
     39 
     40 #define FROM    "<sender@example.org>"
     41 #define TO      "<addressee@example.net>"
     42 #define CC      "<info@example.org>"
     43 
     44 static const char *payload_text =
     45   "Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n"
     46   "To: " TO "\r\n"
     47   "From: " FROM "(Example User)\r\n"
     48   "Cc: " CC "(Another example User)\r\n"
     49   "Message-ID: "
     50   "<dcd7cb36-11db-487a-9f3a-e652a9458efd@rfcpedant.example.org>\r\n"
     51   "Subject: IMAP example message\r\n"
     52   "\r\n" /* empty line to divide headers from body, see RFC 5322 */
     53   "The body of the message starts here.\r\n"
     54   "\r\n"
     55   "It could be a lot of lines, could be MIME encoded, whatever.\r\n"
     56   "Check RFC 5322.\r\n";
     57 
     58 struct upload_status {
     59   size_t bytes_read;
     60 };
     61 
     62 static size_t payload_source(char *ptr, size_t size, size_t nmemb, void *userp)
     63 {
     64   struct upload_status *upload_ctx = (struct upload_status *)userp;
     65   const char *data;
     66   size_t room = size * nmemb;
     67 
     68   if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
     69     return 0;
     70   }
     71 
     72   data = &payload_text[upload_ctx->bytes_read];
     73 
     74   if(*data) {
     75     size_t len = strlen(data);
     76     if(room < len)
     77       len = room;
     78     memcpy(ptr, data, len);
     79     upload_ctx->bytes_read += len;
     80 
     81     return len;
     82   }
     83 
     84   return 0;
     85 }
     86 
     87 int main(void)
     88 {
     89   CURL *curl;
     90   CURLcode res = CURLE_OK;
     91 
     92   curl = curl_easy_init();
     93   if(curl) {
     94     size_t filesize;
     95     long infilesize = LONG_MAX;
     96     struct upload_status upload_ctx = { 0 };
     97 
     98     /* Set username and password */
     99     curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
    100     curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
    101 
    102     /* This creates a new message in folder "Sent". */
    103     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/Sent");
    104 
    105     /* In this case, we are using a callback function to specify the data. You
    106      * could just use the CURLOPT_READDATA option to specify a FILE pointer to
    107      * read from. */
    108     curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
    109     curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
    110     curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
    111 
    112     filesize = strlen(payload_text);
    113     if(filesize <= LONG_MAX)
    114       infilesize = (long)filesize;
    115     curl_easy_setopt(curl, CURLOPT_INFILESIZE, infilesize);
    116 
    117     /* Perform the append */
    118     res = curl_easy_perform(curl);
    119 
    120     /* Check for errors */
    121     if(res != CURLE_OK)
    122       fprintf(stderr, "curl_easy_perform() failed: %s\n",
    123               curl_easy_strerror(res));
    124 
    125     /* Always cleanup */
    126     curl_easy_cleanup(curl);
    127   }
    128 
    129   return (int)res;
    130 }