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      1 /***************************************************************************
      2  *                                  _   _ ____  _
      3  *  Project                     ___| | | |  _ \| |
      4  *                             / __| | | | |_) | |
      5  *                            | (__| |_| |  _ <| |___
      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 #include "test.h"
     23 
     24 #include "testutil.h"
     25 #include "warnless.h"
     26 #include "memdebug.h"
     27 
     28 /*
     29  * This is the list of basic details you need to tweak to get things right.
     30  */
     31 #define USERNAME "user (at) example.com"
     32 #define PASSWORD "123qwerty"
     33 #define RECIPIENT "<1507-recipient (at) example.com>"
     34 #define MAILFROM "<1507-realuser (at) example.com>"
     35 
     36 #define MULTI_PERFORM_HANG_TIMEOUT 60 * 1000
     37 
     38 static size_t read_callback(void *ptr, size_t size, size_t nmemb, void *userp)
     39 {
     40   (void)ptr;
     41   (void)size;
     42   (void)nmemb;
     43   (void)userp;
     44   return CURL_READFUNC_ABORT;
     45 }
     46 
     47 static struct timeval tvnow(void)
     48 {
     49   /*
     50   ** time() returns the value of time in seconds since the Epoch.
     51   */
     52   struct timeval now;
     53   now.tv_sec = (long)time(NULL);
     54   now.tv_usec = 0;
     55   return now;
     56 }
     57 
     58 static long tvdiff(struct timeval newer, struct timeval older)
     59 {
     60   return (newer.tv_sec-older.tv_sec)*1000+
     61     (newer.tv_usec-older.tv_usec)/1000;
     62 }
     63 
     64 int test(char *URL)
     65 {
     66    int res = 0;
     67    CURL *curl = NULL;
     68    CURLM *mcurl = NULL;
     69    int still_running = 1;
     70    struct timeval mp_start;
     71    struct curl_slist *rcpt_list = NULL;
     72 
     73    curl_global_init(CURL_GLOBAL_DEFAULT);
     74 
     75    easy_init(curl);
     76 
     77    multi_init(mcurl);
     78 
     79    rcpt_list = curl_slist_append(rcpt_list, RECIPIENT);
     80    /* more addresses can be added here
     81       rcpt_list = curl_slist_append(rcpt_list, "<others (at) example.com>");
     82    */
     83 
     84    curl_easy_setopt(curl, CURLOPT_URL, URL);
     85 #if 0
     86    curl_easy_setopt(curl, CURLOPT_USERNAME, USERNAME);
     87    curl_easy_setopt(curl, CURLOPT_PASSWORD, PASSWORD);
     88 #endif
     89    curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
     90    curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_callback);
     91    curl_easy_setopt(curl, CURLOPT_MAIL_FROM, MAILFROM);
     92    curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, rcpt_list);
     93    curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
     94    multi_add_handle(mcurl, curl);
     95 
     96    mp_start = tvnow();
     97 
     98   /* we start some action by calling perform right away */
     99   curl_multi_perform(mcurl, &still_running);
    100 
    101   while(still_running) {
    102     struct timeval timeout;
    103     int rc; /* select() return code */
    104 
    105     fd_set fdread;
    106     fd_set fdwrite;
    107     fd_set fdexcep;
    108     int maxfd = -1;
    109 
    110     long curl_timeo = -1;
    111 
    112     FD_ZERO(&fdread);
    113     FD_ZERO(&fdwrite);
    114     FD_ZERO(&fdexcep);
    115 
    116     /* set a suitable timeout to play around with */
    117     timeout.tv_sec = 1;
    118     timeout.tv_usec = 0;
    119 
    120     curl_multi_timeout(mcurl, &curl_timeo);
    121     if(curl_timeo >= 0) {
    122       timeout.tv_sec = curl_timeo / 1000;
    123       if(timeout.tv_sec > 1)
    124         timeout.tv_sec = 1;
    125       else
    126         timeout.tv_usec = (curl_timeo % 1000) * 1000;
    127     }
    128 
    129     /* get file descriptors from the transfers */
    130     curl_multi_fdset(mcurl, &fdread, &fdwrite, &fdexcep, &maxfd);
    131 
    132     /* In a real-world program you OF COURSE check the return code of the
    133        function calls.  On success, the value of maxfd is guaranteed to be
    134        greater or equal than -1.  We call select(maxfd + 1, ...), specially in
    135        case of (maxfd == -1), we call select(0, ...), which is basically equal
    136        to sleep. */
    137 
    138     rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
    139 
    140     if(tvdiff(tvnow(), mp_start) > MULTI_PERFORM_HANG_TIMEOUT) {
    141       fprintf(stderr, "ABORTING TEST, since it seems "
    142               "that it would have run forever.\n");
    143       break;
    144     }
    145 
    146     switch(rc) {
    147     case -1:
    148       /* select error */
    149       break;
    150     case 0: /* timeout */
    151     default: /* action */
    152       curl_multi_perform(mcurl, &still_running);
    153       break;
    154     }
    155   }
    156 
    157 test_cleanup:
    158 
    159   curl_slist_free_all(rcpt_list);
    160   curl_multi_remove_handle(mcurl, curl);
    161   curl_multi_cleanup(mcurl);
    162   curl_easy_cleanup(curl);
    163   curl_global_cleanup();
    164 
    165   return res;
    166 }
    167 
    168 
    169