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Annotation of embedaddon/curl/docs/examples/imap-append.c, revision 1.1

1.1     ! misho       1: /***************************************************************************
        !             2:  *                                  _   _ ____  _
        !             3:  *  Project                     ___| | | |  _ \| |
        !             4:  *                             / __| | | | |_) | |
        !             5:  *                            | (__| |_| |  _ <| |___
        !             6:  *                             \___|\___/|_| \_\_____|
        !             7:  *
        !             8:  * Copyright (C) 1998 - 2019, 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.haxx.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:  ***************************************************************************/
        !            22: 
        !            23: /* <DESC>
        !            24:  * IMAP example showing how to send e-mails
        !            25:  * </DESC>
        !            26:  */
        !            27: 
        !            28: #include <stdio.h>
        !            29: #include <string.h>
        !            30: #include <curl/curl.h>
        !            31: 
        !            32: /* This is a simple example showing how to send mail using libcurl's IMAP
        !            33:  * capabilities.
        !            34:  *
        !            35:  * Note that this example requires libcurl 7.30.0 or above.
        !            36:  */
        !            37: 
        !            38: #define FROM    "<sender@example.org>"
        !            39: #define TO      "<addressee@example.net>"
        !            40: #define CC      "<info@example.org>"
        !            41: 
        !            42: static const char *payload_text[] = {
        !            43:   "Date: Mon, 29 Nov 2010 21:54:29 +1100\r\n",
        !            44:   "To: " TO "\r\n",
        !            45:   "From: " FROM "(Example User)\r\n",
        !            46:   "Cc: " CC "(Another example User)\r\n",
        !            47:   "Message-ID: "
        !            48:   "<dcd7cb36-11db-487a-9f3a-e652a9458efd@rfcpedant.example.org>\r\n",
        !            49:   "Subject: IMAP example message\r\n",
        !            50:   "\r\n", /* empty line to divide headers from body, see RFC5322 */
        !            51:   "The body of the message starts here.\r\n",
        !            52:   "\r\n",
        !            53:   "It could be a lot of lines, could be MIME encoded, whatever.\r\n",
        !            54:   "Check RFC5322.\r\n",
        !            55:   NULL
        !            56: };
        !            57: 
        !            58: struct upload_status {
        !            59:   int lines_read;
        !            60: };
        !            61: 
        !            62: static size_t payload_source(void *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: 
        !            67:   if((size == 0) || (nmemb == 0) || ((size*nmemb) < 1)) {
        !            68:     return 0;
        !            69:   }
        !            70: 
        !            71:   data = payload_text[upload_ctx->lines_read];
        !            72: 
        !            73:   if(data) {
        !            74:     size_t len = strlen(data);
        !            75:     memcpy(ptr, data, len);
        !            76:     upload_ctx->lines_read++;
        !            77: 
        !            78:     return len;
        !            79:   }
        !            80: 
        !            81:   return 0;
        !            82: }
        !            83: 
        !            84: int main(void)
        !            85: {
        !            86:   CURL *curl;
        !            87:   CURLcode res = CURLE_OK;
        !            88: 
        !            89:   curl = curl_easy_init();
        !            90:   if(curl) {
        !            91:     const char **p;
        !            92:     long infilesize;
        !            93:     struct upload_status upload_ctx;
        !            94: 
        !            95:     upload_ctx.lines_read = 0;
        !            96: 
        !            97:     /* Set username and password */
        !            98:     curl_easy_setopt(curl, CURLOPT_USERNAME, "user");
        !            99:     curl_easy_setopt(curl, CURLOPT_PASSWORD, "secret");
        !           100: 
        !           101:     /* This will create a new message 100. Note that you should perform an
        !           102:      * EXAMINE command to obtain the UID of the next message to create and a
        !           103:      * SELECT to ensure you are creating the message in the OUTBOX. */
        !           104:     curl_easy_setopt(curl, CURLOPT_URL, "imap://imap.example.com/100");
        !           105: 
        !           106:     /* In this case, we're using a callback function to specify the data. You
        !           107:      * could just use the CURLOPT_READDATA option to specify a FILE pointer to
        !           108:      * read from. */
        !           109:     curl_easy_setopt(curl, CURLOPT_READFUNCTION, payload_source);
        !           110:     curl_easy_setopt(curl, CURLOPT_READDATA, &upload_ctx);
        !           111:     curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
        !           112: 
        !           113:     infilesize = 0;
        !           114:     for(p = payload_text; *p; ++p) {
        !           115:       infilesize += (long)strlen(*p);
        !           116:     }
        !           117:     curl_easy_setopt(curl, CURLOPT_INFILESIZE, infilesize);
        !           118: 
        !           119:     /* Perform the append */
        !           120:     res = curl_easy_perform(curl);
        !           121: 
        !           122:     /* Check for errors */
        !           123:     if(res != CURLE_OK)
        !           124:       fprintf(stderr, "curl_easy_perform() failed: %s\n",
        !           125:               curl_easy_strerror(res));
        !           126: 
        !           127:     /* Always cleanup */
        !           128:     curl_easy_cleanup(curl);
        !           129:   }
        !           130: 
        !           131:   return (int)res;
        !           132: }