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      1 /***************************************************************************
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      3  *  Project                     ___| | | |  _ \| |
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      5  *                            | (__| |_| |  _ <| |___
      6  *                             \___|\___/|_| \_\_____|
      7  *
      8  * Copyright (C) 1998 - 2017, 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 #include "test.h"
     23 
     24 #include <limits.h>
     25 
     26 #include "testutil.h"
     27 #include "warnless.h"
     28 #include "memdebug.h"
     29 
     30 #define TEST_HANG_TIMEOUT 5 * 1000
     31 
     32 /*
     33  * Test case for below scenario:
     34  *   - Connect to an FTP server using CONNECT_ONLY option
     35  *   - transfer some files with re-using the connection (omitted in test case)
     36  *   - Disconnect from FTP server with sending QUIT command
     37  *
     38  * The test case originated for verifying CONNECT_ONLY option shall not
     39  * block after protocol connect is done, but it returns the message
     40  * with function curl_multi_info_read().
     41  */
     42 
     43 enum {
     44   CONNECT_ONLY_PHASE = 0,
     45   QUIT_PHASE,
     46   LAST_PHASE
     47 };
     48 
     49 int test(char *URL)
     50 {
     51   CURL *easy = NULL;
     52   CURLM *multi = NULL;
     53   int res = 0;
     54   int running;
     55   int msgs_left;
     56   int phase;
     57   CURLMsg *msg;
     58 
     59   start_test_timing();
     60 
     61   global_init(CURL_GLOBAL_ALL);
     62 
     63   easy_init(easy);
     64 
     65   multi_init(multi);
     66 
     67   for(phase = CONNECT_ONLY_PHASE; phase < LAST_PHASE; ++phase) {
     68     /* go verbose */
     69     easy_setopt(easy, CURLOPT_VERBOSE, 1L);
     70 
     71     /* specify target */
     72     easy_setopt(easy, CURLOPT_URL, URL);
     73 
     74     /* enable 'CONNECT_ONLY' option when in connect phase */
     75     if(phase == CONNECT_ONLY_PHASE)
     76       easy_setopt(easy, CURLOPT_CONNECT_ONLY, 1L);
     77 
     78     /* enable 'NOBODY' option to send 'QUIT' command in quit phase */
     79     if(phase == QUIT_PHASE) {
     80       easy_setopt(easy, CURLOPT_CONNECT_ONLY, 0L);
     81       easy_setopt(easy, CURLOPT_NOBODY, 1L);
     82       easy_setopt(easy, CURLOPT_FORBID_REUSE, 1L);
     83     }
     84 
     85     multi_add_handle(multi, easy);
     86 
     87     for(;;) {
     88       struct timeval interval;
     89       fd_set fdread;
     90       fd_set fdwrite;
     91       fd_set fdexcep;
     92       long timeout = -99;
     93       int maxfd = -99;
     94 
     95       multi_perform(multi, &running);
     96 
     97       abort_on_test_timeout();
     98 
     99       if(!running)
    100         break; /* done */
    101 
    102       FD_ZERO(&fdread);
    103       FD_ZERO(&fdwrite);
    104       FD_ZERO(&fdexcep);
    105 
    106       multi_fdset(multi, &fdread, &fdwrite, &fdexcep, &maxfd);
    107 
    108       /* At this point, maxfd is guaranteed to be greater or equal than -1. */
    109 
    110       multi_timeout(multi, &timeout);
    111 
    112       /* At this point, timeout is guaranteed to be greater or equal than
    113          -1. */
    114 
    115       if(timeout != -1L) {
    116         int itimeout = (timeout > (long)INT_MAX) ? INT_MAX : (int)timeout;
    117         interval.tv_sec = itimeout/1000;
    118         interval.tv_usec = (itimeout%1000)*1000;
    119       }
    120       else {
    121         interval.tv_sec = TEST_HANG_TIMEOUT/1000 + 1;
    122         interval.tv_usec = 0;
    123       }
    124 
    125       select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &interval);
    126 
    127       abort_on_test_timeout();
    128     }
    129 
    130     msg = curl_multi_info_read(multi, &msgs_left);
    131     if(msg)
    132       res = msg->data.result;
    133 
    134     multi_remove_handle(multi, easy);
    135   }
    136 
    137 test_cleanup:
    138 
    139   /* undocumented cleanup sequence - type UA */
    140 
    141   curl_multi_cleanup(multi);
    142   curl_easy_cleanup(easy);
    143   curl_global_cleanup();
    144 
    145   return res;
    146 }
    147