curl/tests/unit/unit1607.c
Anders Bakken 50d1b3379a CURLOPT_RESOLVE: Add support for multiple IP addresses per entry
This enables users to preresolve but still take advantage of happy
eyeballs and trying multiple addresses if some are not connecting.

Ref: https://github.com/curl/curl/pull/2260
2018-02-20 04:24:28 -05:00

204 lines
5.6 KiB
C

/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, 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 https://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.
*
***************************************************************************/
#include "curlcheck.h"
#include "urldata.h"
#include "connect.h"
#include "share.h"
#include "memdebug.h" /* LAST include file */
static struct Curl_easy *easy;
struct curl_hash *hostcache;
static CURLcode unit_setup(void)
{
int res = CURLE_OK;
global_init(CURL_GLOBAL_ALL);
easy = curl_easy_init();
if(!easy)
return CURLE_OUT_OF_MEMORY;
hostcache = Curl_global_host_cache_init();
if(!hostcache)
return CURLE_OUT_OF_MEMORY;
return res;
}
static void unit_stop(void)
{
curl_easy_cleanup(easy);
curl_global_cleanup();
}
struct testcase {
/* host:port:address[,address]... */
const char *optval;
/* lowercase host and port to retrieve the addresses from hostcache */
const char *host;
int port;
/* 0 to 9 addresses expected from hostcache */
const char *address[10];
};
/* In builds without IPv6 support CURLOPT_RESOLVE should skip over those
addresses, so we have to do that as well. */
static const char skip = 0;
#ifdef ENABLE_IPV6
#define IPV6ONLY(x) x
#else
#define IPV6ONLY(x) &skip
#endif
/* CURLOPT_RESOLVE address parsing tests */
static const struct testcase tests[] = {
/* spaces aren't allowed, for now */
{ "test.com:80:127.0.0.1, 127.0.0.2",
"test.com", 80, { NULL, }
},
{ "TEST.com:80:,,127.0.0.1,,,127.0.0.2,,,,::1,,,",
"test.com", 80, { "127.0.0.1", "127.0.0.2", IPV6ONLY("::1"), }
},
{ "test.com:80:::1,127.0.0.1",
"test.com", 80, { IPV6ONLY("::1"), "127.0.0.1", }
},
{ "test.com:80:[::1],127.0.0.1",
"test.com", 80, { IPV6ONLY("::1"), "127.0.0.1", }
},
{ "test.com:80:::1",
"test.com", 80, { IPV6ONLY("::1"), }
},
{ "test.com:80:[::1]",
"test.com", 80, { IPV6ONLY("::1"), }
},
{ "test.com:80:127.0.0.1",
"test.com", 80, { "127.0.0.1", }
},
{ "test.com:80:,127.0.0.1",
"test.com", 80, { "127.0.0.1", }
},
{ "test.com:80:127.0.0.1,",
"test.com", 80, { "127.0.0.1", }
},
{ "test.com:0:127.0.0.1",
"test.com", 0, { "127.0.0.1", }
},
};
UNITTEST_START
int i;
int testnum = sizeof(tests) / sizeof(struct testcase);
for(i = 0; i < testnum; ++i, curl_easy_reset(easy)) {
int j;
int addressnum = sizeof tests[i].address / sizeof *tests[i].address;
struct Curl_addrinfo *addr;
struct Curl_dns_entry *dns;
struct curl_slist *list;
void *entry_id;
bool problem = false;
Curl_hostcache_clean(easy, hostcache);
easy->dns.hostcache = hostcache;
easy->dns.hostcachetype = HCACHE_GLOBAL;
list = curl_slist_append(NULL, tests[i].optval);
curl_easy_setopt(easy, CURLOPT_RESOLVE, list);
Curl_loadhostpairs(easy);
entry_id = (void *)aprintf("%s:%d", tests[i].host, tests[i].port);
dns = Curl_hash_pick(easy->dns.hostcache, entry_id, strlen(entry_id) + 1);
free(entry_id);
entry_id = NULL;
addr = dns ? dns->addr : NULL;
for(j = 0; j < addressnum; ++j) {
long port = 0;
char ipaddress[MAX_IPADR_LEN] = {0};
if(!addr && !tests[i].address[j])
break;
if(tests[i].address[j] == &skip)
continue;
if(addr && !Curl_getaddressinfo(addr->ai_addr,
ipaddress, &port)) {
fprintf(stderr, "%s:%d tests[%d] failed. getaddressinfo failed.\n",
__FILE__, __LINE__, i);
problem = true;
break;
}
if(addr && !tests[i].address[j]) {
fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
"is %s but tests[%d].address[%d] is NULL.\n",
__FILE__, __LINE__, i, ipaddress, i, j);
problem = true;
break;
}
if(!addr && tests[i].address[j]) {
fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
"is NULL but tests[%d].address[%d] is %s.\n",
__FILE__, __LINE__, i, i, j, tests[i].address[j]);
problem = true;
break;
}
if(!curl_strequal(ipaddress, tests[i].address[j])) {
fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
"%s is not equal to tests[%d].address[%d] %s.\n",
__FILE__, __LINE__, i, ipaddress, i, j, tests[i].address[j]);
problem = true;
break;
}
if(port != tests[i].port) {
fprintf(stderr, "%s:%d tests[%d] failed. the retrieved port "
"for tests[%d].address[%d] is %ld but tests[%d].port is %d.\n",
__FILE__, __LINE__, i, i, j, port, i, tests[i].port);
problem = true;
break;
}
addr = addr->ai_next;
}
Curl_hostcache_clean(easy, easy->dns.hostcache);
curl_slist_free_all(list);
if(problem) {
unitfail++;
continue;
}
}
UNITTEST_STOP