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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Test case converted from bug report #3575448, identifying a memory leak in
* the CURLOPT_RESOLVE handling with the multi interface.
*/
#include "test.h"
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
int test(char *URL)
{
CURL *ehandle;
CURLM *multi_handle;
char redirect[160];
CURLcode result = CURLE_NOT_BUILT_IN;
int still_running; /* keep number of running handles */
CURLMsg *msg; /* for picking up messages with the transfer status */
int msgs_left; /* how many messages are left */
/* DNS cache injection */
struct curl_slist *dns_cache_list;
sprintf(redirect, "google.com:%s:%s", libtest_arg2, libtest_arg3);
fprintf(stderr, "Redirect: %s\n", redirect);
dns_cache_list = curl_slist_append(NULL, redirect);
/* Allocate one CURL handle per transfer */
ehandle = curl_easy_init();
/* set the options (I left out a few, you'll get the point anyway) */
curl_easy_setopt(ehandle, CURLOPT_URL, URL);
curl_easy_setopt(ehandle, CURLOPT_HEADER, 1L);
curl_easy_setopt(ehandle, CURLOPT_RESOLVE, dns_cache_list);
/* init a multi stack */
multi_handle = curl_multi_init();
/* add the individual transfers */
curl_multi_add_handle(multi_handle, ehandle);
/* we start some action by calling perform right away */
curl_multi_perform(multi_handle, &still_running);
do {
struct timeval timeout;
int rc; /* select() return code */
fd_set fdread;
fd_set fdwrite;
fd_set fdexcep;
int maxfd = -1;
long curl_timeo = -1;
FD_ZERO(&fdread);
FD_ZERO(&fdwrite);
FD_ZERO(&fdexcep);
/* set a suitable timeout to play around with */
timeout.tv_sec = 1;
timeout.tv_usec = 0;
curl_multi_timeout(multi_handle, &curl_timeo);
if(curl_timeo >= 0) {
int itimeout = (curl_timeo > (long)INT_MAX) ? INT_MAX : (int)curl_timeo;
timeout.tv_sec = itimeout / 1000;
if(timeout.tv_sec > 1)
timeout.tv_sec = 1;
else
timeout.tv_usec = (itimeout % 1000) * 1000;
}
/* get file descriptors from the transfers */
curl_multi_fdset(multi_handle, &fdread, &fdwrite, &fdexcep, &maxfd);
/* In a real-world program you OF COURSE check the return code of the
function calls. On success, the value of maxfd is guaranteed to be
greater or equal than -1. We call select(maxfd + 1, ...), specially in
case of (maxfd == -1), we call select(0, ...), which is basically equal
to sleep. */
rc = select(maxfd+1, &fdread, &fdwrite, &fdexcep, &timeout);
switch(rc) {
case -1:
/* select error */
break;
case 0: /* timeout */
default: /* action */
curl_multi_perform(multi_handle, &still_running);
break;
}
} while(still_running);
/* See how the transfers went */
while ((msg = curl_multi_info_read(multi_handle, &msgs_left))) {
if (msg->msg == CURLMSG_DONE)
result = msg->data.result;
}
curl_multi_cleanup(multi_handle);
/* Free the CURL handles */
curl_easy_cleanup(ehandle);
curl_slist_free_all(dns_cache_list);
return (int)result;
}
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