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      7  *
      8  * Copyright (C) 1998 - 2018, 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 #include <limits.h>
     33 
     34 #include "testutil.h"
     35 #include "warnless.h"
     36 #include "memdebug.h"
     37 
     38 #define TEST_HANG_TIMEOUT 60 * 1000
     39 
     40 int test(char *URL)
     41 {
     42   CURL *easy = NULL;
     43   CURL *dup;
     44   CURLM *multi = NULL;
     45   int still_running;
     46   int res = 0;
     47 
     48   char redirect[160];
     49 
     50   /* DNS cache injection */
     51   struct curl_slist *dns_cache_list;
     52 
     53   msnprintf(redirect, sizeof(redirect), "google.com:%s:%s", libtest_arg2,
     54             libtest_arg3);
     55 
     56   start_test_timing();
     57 
     58   dns_cache_list = curl_slist_append(NULL, redirect);
     59   if(!dns_cache_list) {
     60     fprintf(stderr, "curl_slist_append() failed\n");
     61     return TEST_ERR_MAJOR_BAD;
     62   }
     63 
     64   res_global_init(CURL_GLOBAL_ALL);
     65   if(res) {
     66     curl_slist_free_all(dns_cache_list);
     67     return res;
     68   }
     69 
     70   easy_init(easy);
     71 
     72   easy_setopt(easy, CURLOPT_URL, URL);
     73   easy_setopt(easy, CURLOPT_HEADER, 1L);
     74   easy_setopt(easy, CURLOPT_RESOLVE, dns_cache_list);
     75 
     76   dup = curl_easy_duphandle(easy);
     77   if(dup) {
     78     curl_easy_cleanup(easy);
     79     easy = dup;
     80   }
     81   else {
     82     curl_slist_free_all(dns_cache_list);
     83     curl_easy_cleanup(easy);
     84     return CURLE_OUT_OF_MEMORY;
     85   }
     86 
     87   multi_init(multi);
     88 
     89   multi_add_handle(multi, easy);
     90 
     91   multi_perform(multi, &still_running);
     92 
     93   abort_on_test_timeout();
     94 
     95   while(still_running) {
     96     struct timeval timeout;
     97     fd_set fdread;
     98     fd_set fdwrite;
     99     fd_set fdexcep;
    100     int maxfd = -99;
    101 
    102     FD_ZERO(&fdread);
    103     FD_ZERO(&fdwrite);
    104     FD_ZERO(&fdexcep);
    105     timeout.tv_sec = 1;
    106     timeout.tv_usec = 0;
    107 
    108     multi_fdset(multi, &fdread, &fdwrite, &fdexcep, &maxfd);
    109 
    110     /* At this point, maxfd is guaranteed to be greater or equal than -1. */
    111 
    112     select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &timeout);
    113 
    114     abort_on_test_timeout();
    115 
    116     multi_perform(multi, &still_running);
    117 
    118     abort_on_test_timeout();
    119   }
    120 
    121 test_cleanup:
    122 
    123 #ifdef LIB1502
    124   /* undocumented cleanup sequence - type UA */
    125   curl_multi_cleanup(multi);
    126   curl_easy_cleanup(easy);
    127   curl_global_cleanup();
    128 #endif
    129 
    130 #ifdef LIB1503
    131   /* proper cleanup sequence - type PA */
    132   curl_multi_remove_handle(multi, easy);
    133   curl_multi_cleanup(multi);
    134   curl_easy_cleanup(easy);
    135   curl_global_cleanup();
    136 #endif
    137 
    138 #ifdef LIB1504
    139   /* undocumented cleanup sequence - type UB */
    140   curl_easy_cleanup(easy);
    141   curl_multi_cleanup(multi);
    142   curl_global_cleanup();
    143 #endif
    144 
    145 #ifdef LIB1505
    146   /* proper cleanup sequence - type PB */
    147   curl_multi_remove_handle(multi, easy);
    148   curl_easy_cleanup(easy);
    149   curl_multi_cleanup(multi);
    150   curl_global_cleanup();
    151 #endif
    152 
    153   curl_slist_free_all(dns_cache_list);
    154 
    155   return res;
    156 }
    157