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    1: /***************************************************************************
    2:  *                                  _   _ ____  _
    3:  *  Project                     ___| | | |  _ \| |
    4:  *                             / __| | | | |_) | |
    5:  *                            | (__| |_| |  _ <| |___
    6:  *                             \___|\___/|_| \_\_____|
    7:  *
    8:  * Copyright (C) 2013 - 2018, Linus Nielsen Feltzing <linus@haxx.se>
    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 "testutil.h"
   25: #include "warnless.h"
   26: #include "memdebug.h"
   27: 
   28: #define TEST_HANG_TIMEOUT 60 * 1000
   29: 
   30: #define NUM_HANDLES 4
   31: 
   32: int test(char *URL)
   33: {
   34:   int res = 0;
   35:   CURL *curl[NUM_HANDLES] = {0};
   36:   int running;
   37:   CURLM *m = NULL;
   38:   int i;
   39:   char target_url[256];
   40:   char dnsentry[256];
   41:   struct curl_slist *slist = NULL, *slist2;
   42:   char *port = libtest_arg3;
   43:   char *address = libtest_arg2;
   44: 
   45:   (void)URL;
   46: 
   47:   /* Create fake DNS entries for serverX.example.com for all handles */
   48:   for(i = 0; i < NUM_HANDLES; i++) {
   49:     msnprintf(dnsentry, sizeof(dnsentry), "server%d.example.com:%s:%s",
   50:               i + 1, port, address);
   51:     printf("%s\n", dnsentry);
   52:     slist2 = curl_slist_append(slist, dnsentry);
   53:     if(!slist2) {
   54:       fprintf(stderr, "curl_slist_append() failed\n");
   55:       goto test_cleanup;
   56:     }
   57:     slist = slist2;
   58:   }
   59: 
   60:   start_test_timing();
   61: 
   62:   global_init(CURL_GLOBAL_ALL);
   63: 
   64:   multi_init(m);
   65: 
   66:   multi_setopt(m, CURLMOPT_MAXCONNECTS, 3L);
   67: 
   68:   /* get NUM_HANDLES easy handles */
   69:   for(i = 0; i < NUM_HANDLES; i++) {
   70:     /* get an easy handle */
   71:     easy_init(curl[i]);
   72:     /* specify target */
   73:     msnprintf(target_url, sizeof(target_url),
   74:               "http://server%d.example.com:%s/path/1506%04i",
   75:               i + 1, port, i + 1);
   76:     target_url[sizeof(target_url) - 1] = '\0';
   77:     easy_setopt(curl[i], CURLOPT_URL, target_url);
   78:     /* go verbose */
   79:     easy_setopt(curl[i], CURLOPT_VERBOSE, 1L);
   80:     /* include headers */
   81:     easy_setopt(curl[i], CURLOPT_HEADER, 1L);
   82: 
   83:     easy_setopt(curl[i], CURLOPT_RESOLVE, slist);
   84:   }
   85: 
   86:   fprintf(stderr, "Start at URL 0\n");
   87: 
   88:   for(i = 0; i < NUM_HANDLES; i++) {
   89:     /* add handle to multi */
   90:     multi_add_handle(m, curl[i]);
   91: 
   92:     for(;;) {
   93:       struct timeval interval;
   94:       fd_set rd, wr, exc;
   95:       int maxfd = -99;
   96: 
   97:       interval.tv_sec = 1;
   98:       interval.tv_usec = 0;
   99: 
  100:       multi_perform(m, &running);
  101: 
  102:       abort_on_test_timeout();
  103: 
  104:       if(!running)
  105:         break; /* done */
  106: 
  107:       FD_ZERO(&rd);
  108:       FD_ZERO(&wr);
  109:       FD_ZERO(&exc);
  110: 
  111:       multi_fdset(m, &rd, &wr, &exc, &maxfd);
  112: 
  113:       /* At this point, maxfd is guaranteed to be greater or equal than -1. */
  114: 
  115:       select_test(maxfd + 1, &rd, &wr, &exc, &interval);
  116: 
  117:       abort_on_test_timeout();
  118:     }
  119:     wait_ms(1); /* to ensure different end times */
  120:   }
  121: 
  122: test_cleanup:
  123: 
  124:   /* proper cleanup sequence - type PB */
  125: 
  126:   for(i = 0; i < NUM_HANDLES; i++) {
  127:     curl_multi_remove_handle(m, curl[i]);
  128:     curl_easy_cleanup(curl[i]);
  129:   }
  130: 
  131:   curl_slist_free_all(slist);
  132: 
  133:   curl_multi_cleanup(m);
  134:   curl_global_cleanup();
  135: 
  136:   return res;
  137: }