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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 2013, Linus Nielsen Feltzing <linus (at) 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     snprintf(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     snprintf(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 }
    138