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      1 /***************************************************************************
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      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel (at) 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  * This source code is used for lib1502, lib1503, lib1504 and lib1505 with
     24  * only #ifdefs controlling the cleanup sequence.
     25  *
     26  * Test case 1502 converted from bug report #3575448, identifying a memory
     27  * leak in the CURLOPT_RESOLVE handling with the multi interface.
     28  */
     29 
     30 #include "test.h"
     31 
     32 #ifdef HAVE_LIMITS_H
     33 #include <limits.h>
     34 #endif
     35 
     36 #include "testutil.h"
     37 #include "warnless.h"
     38 #include "memdebug.h"
     39 
     40 #define TEST_HANG_TIMEOUT 60 * 1000
     41 
     42 int test(char *URL)
     43 {
     44   CURL* easy = NULL;
     45   CURLM* multi = NULL;
     46   int still_running;
     47   int res = 0;
     48 
     49   char redirect[160];
     50 
     51   /* DNS cache injection */
     52   struct curl_slist *dns_cache_list;
     53 
     54   snprintf(redirect, sizeof(redirect), "google.com:%s:%s", libtest_arg2,
     55            libtest_arg3);
     56 
     57   start_test_timing();
     58 
     59   dns_cache_list = curl_slist_append(NULL, redirect);
     60   if(!dns_cache_list) {
     61     fprintf(stderr, "curl_slist_append() failed\n");
     62     return TEST_ERR_MAJOR_BAD;
     63   }
     64 
     65   res_global_init(CURL_GLOBAL_ALL);
     66   if(res) {
     67     curl_slist_free_all(dns_cache_list);
     68     return res;
     69   }
     70 
     71   easy_init(easy);
     72 
     73   easy_setopt(easy, CURLOPT_URL, URL);
     74   easy_setopt(easy, CURLOPT_HEADER, 1L);
     75   easy_setopt(easy, CURLOPT_RESOLVE, dns_cache_list);
     76 
     77   multi_init(multi);
     78 
     79   multi_add_handle(multi, easy);
     80 
     81   multi_perform(multi, &still_running);
     82 
     83   abort_on_test_timeout();
     84 
     85   while(still_running) {
     86     struct timeval timeout;
     87     fd_set fdread;
     88     fd_set fdwrite;
     89     fd_set fdexcep;
     90     int maxfd = -99;
     91 
     92     FD_ZERO(&fdread);
     93     FD_ZERO(&fdwrite);
     94     FD_ZERO(&fdexcep);
     95     timeout.tv_sec = 1;
     96     timeout.tv_usec = 0;
     97 
     98     multi_fdset(multi, &fdread, &fdwrite, &fdexcep, &maxfd);
     99 
    100     /* At this point, maxfd is guaranteed to be greater or equal than -1. */
    101 
    102     select_test(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
    103 
    104     abort_on_test_timeout();
    105 
    106     multi_perform(multi, &still_running);
    107 
    108     abort_on_test_timeout();
    109   }
    110 
    111 test_cleanup:
    112 
    113 #ifdef LIB1502
    114   /* undocumented cleanup sequence - type UA */
    115   curl_multi_cleanup(multi);
    116   curl_easy_cleanup(easy);
    117   curl_global_cleanup();
    118 #endif
    119 
    120 #ifdef LIB1503
    121   /* proper cleanup sequence - type PA */
    122   curl_multi_remove_handle(multi, easy);
    123   curl_multi_cleanup(multi);
    124   curl_easy_cleanup(easy);
    125   curl_global_cleanup();
    126 #endif
    127 
    128 #ifdef LIB1504
    129   /* undocumented cleanup sequence - type UB */
    130   curl_easy_cleanup(easy);
    131   curl_multi_cleanup(multi);
    132   curl_global_cleanup();
    133 #endif
    134 
    135 #ifdef LIB1505
    136   /* proper cleanup sequence - type PB */
    137   curl_multi_remove_handle(multi, easy);
    138   curl_easy_cleanup(easy);
    139   curl_multi_cleanup(multi);
    140   curl_global_cleanup();
    141 #endif
    142 
    143   curl_slist_free_all(dns_cache_list);
    144 
    145   return res;
    146 }
    147