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    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 1998 - 2020, 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: #include "test.h"
   23: 
   24: #include "memdebug.h"
   25: 
   26: static char data[]=
   27: #ifdef CURL_DOES_CONVERSIONS
   28:   /* ASCII representation with escape sequences for non-ASCII platforms */
   29:   "\x64\x75\x6d\x6d\x79\x0a";
   30: #else
   31:   "dummy\n";
   32: #endif
   33: 
   34: struct WriteThis {
   35:   char *readptr;
   36:   curl_off_t sizeleft;
   37:   int freecount;
   38: };
   39: 
   40: static void free_callback(void *userp)
   41: {
   42:   struct WriteThis *pooh = (struct WriteThis *) userp;
   43: 
   44:   pooh->freecount++;
   45: }
   46: 
   47: static size_t read_callback(char *ptr, size_t size, size_t nmemb, void *userp)
   48: {
   49:   struct WriteThis *pooh = (struct WriteThis *)userp;
   50:   int eof = !*pooh->readptr;
   51: 
   52:   if(size*nmemb < 1)
   53:     return 0;
   54: 
   55:   eof = pooh->sizeleft <= 0;
   56:   if(!eof)
   57:     pooh->sizeleft--;
   58: 
   59:   if(!eof) {
   60:     *ptr = *pooh->readptr;           /* copy one single byte */
   61:     pooh->readptr++;                 /* advance pointer */
   62:     return 1;                        /* we return 1 byte at a time! */
   63:   }
   64: 
   65:   return 0;                         /* no more data left to deliver */
   66: }
   67: 
   68: int test(char *URL)
   69: {
   70:   CURL *easy = NULL;
   71:   CURL *easy2 = NULL;
   72:   curl_mime *mime = NULL;
   73:   curl_mimepart *part;
   74:   struct curl_slist *hdrs = NULL;
   75:   CURLcode result;
   76:   int res = TEST_ERR_FAILURE;
   77:   struct WriteThis pooh;
   78: 
   79:   /*
   80:    * Check proper copy/release of mime post data bound to a duplicated
   81:    * easy handle.
   82:    */
   83: 
   84:   if(curl_global_init(CURL_GLOBAL_ALL) != CURLE_OK) {
   85:     fprintf(stderr, "curl_global_init() failed\n");
   86:     return TEST_ERR_MAJOR_BAD;
   87:   }
   88: 
   89:   easy = curl_easy_init();
   90: 
   91:   /* First set the URL that is about to receive our POST. */
   92:   test_setopt(easy, CURLOPT_URL, URL);
   93: 
   94:   /* get verbose debug output please */
   95:   test_setopt(easy, CURLOPT_VERBOSE, 1L);
   96: 
   97:   /* include headers in the output */
   98:   test_setopt(easy, CURLOPT_HEADER, 1L);
   99: 
  100:   /* Prepare the callback structure. */
  101:   pooh.readptr = data;
  102:   pooh.sizeleft = (curl_off_t) strlen(data);
  103:   pooh.freecount = 0;
  104: 
  105:   /* Build the mime tree. */
  106:   mime = curl_mime_init(easy);
  107:   part = curl_mime_addpart(mime);
  108:   curl_mime_data(part, "hello", CURL_ZERO_TERMINATED);
  109:   curl_mime_name(part, "greeting");
  110:   curl_mime_type(part, "application/X-Greeting");
  111:   curl_mime_encoder(part, "base64");
  112:   hdrs = curl_slist_append(hdrs, "X-Test-Number: 654");
  113:   curl_mime_headers(part, hdrs, TRUE);
  114:   part = curl_mime_addpart(mime);
  115:   curl_mime_filedata(part, "log/file654.txt");
  116:   part = curl_mime_addpart(mime);
  117:   curl_mime_data_cb(part, (curl_off_t) -1, read_callback, NULL, free_callback,
  118:                     &pooh);
  119: 
  120:   /* Bind mime data to its easy handle. */
  121:   test_setopt(easy, CURLOPT_MIMEPOST, mime);
  122: 
  123:   /* Duplicate the handle. */
  124:   easy2 = curl_easy_duphandle(easy);
  125:   if(!easy2) {
  126:     fprintf(stderr, "curl_easy_duphandle() failed\n");
  127:     res = TEST_ERR_FAILURE;
  128:     goto test_cleanup;
  129:   }
  130: 
  131:   /* Now free the mime structure: it should unbind it from the first
  132:      easy handle. */
  133:   curl_mime_free(mime);
  134:   mime = NULL;  /* Already cleaned up. */
  135: 
  136:   /* Perform on the first handle: should not send any data. */
  137:   result = curl_easy_perform(easy);
  138:   if(result) {
  139:     fprintf(stderr, "curl_easy_perform(original) failed\n");
  140:     res = (int) result;
  141:     goto test_cleanup;
  142:   }
  143: 
  144:   /* Perform on the second handle: if the bound mime structure has not been
  145:      duplicated properly, it should cause a valgrind error. */
  146:   result = curl_easy_perform(easy2);
  147:   if(result) {
  148:     fprintf(stderr, "curl_easy_perform(duplicated) failed\n");
  149:     res = (int) result;
  150:     goto test_cleanup;
  151:   }
  152: 
  153:   /* Free the duplicated handle: it should call free_callback again.
  154:      If the mime copy was bad or not automatically released, valgrind
  155:      will signal it. */
  156:   curl_easy_cleanup(easy2);
  157:   easy2 = NULL;  /* Already cleaned up. */
  158: 
  159:   if(pooh.freecount != 2) {
  160:     fprintf(stderr, "free_callback() called %d times instead of 2\n",
  161:             pooh.freecount);
  162:     res = TEST_ERR_FAILURE;
  163:     goto test_cleanup;
  164:   }
  165: 
  166: test_cleanup:
  167:   curl_easy_cleanup(easy);
  168:   curl_easy_cleanup(easy2);
  169:   curl_mime_free(mime);
  170:   curl_global_cleanup();
  171:   return res;
  172: }