1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@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 "curlcheck.h"
23
24 #include "urldata.h"
25 #include "connect.h"
26 #include "share.h"
27
28 /* retrieves ip address and port from a sockaddr structure.
29 note it calls Curl_inet_ntop which sets errno on fail, not SOCKERRNO. */
30 bool getaddressinfo(struct sockaddr *sa, char *addr, long *port);
31
32 #include "memdebug.h" /* LAST include file */
33
34 static struct Curl_easy *easy;
35 static struct curl_hash *hostcache;
36
unit_stop(void)37 static void unit_stop(void)
38 {
39 curl_easy_cleanup(easy);
40 curl_global_cleanup();
41 }
42
unit_setup(void)43 static CURLcode unit_setup(void)
44 {
45 int res = CURLE_OK;
46
47 global_init(CURL_GLOBAL_ALL);
48
49 easy = curl_easy_init();
50 if(!easy) {
51 curl_global_cleanup();
52 return CURLE_OUT_OF_MEMORY;
53 }
54
55 hostcache = Curl_global_host_cache_init();
56 if(!hostcache) {
57 unit_stop();
58 return CURLE_OUT_OF_MEMORY;
59 }
60
61 return res;
62 }
63
64 struct testcase {
65 /* host:port:address[,address]... */
66 const char *optval;
67
68 /* lowercase host and port to retrieve the addresses from hostcache */
69 const char *host;
70 int port;
71
72 /* 0 to 9 addresses expected from hostcache */
73 const char *address[10];
74 };
75
76
77 /* In builds without IPv6 support CURLOPT_RESOLVE should skip over those
78 addresses, so we have to do that as well. */
79 static const char skip = 0;
80 #ifdef ENABLE_IPV6
81 #define IPV6ONLY(x) x
82 #else
83 #define IPV6ONLY(x) &skip
84 #endif
85
86 /* CURLOPT_RESOLVE address parsing tests */
87 static const struct testcase tests[] = {
88 /* spaces aren't allowed, for now */
89 { "test.com:80:127.0.0.1, 127.0.0.2",
90 "test.com", 80, { NULL, }
91 },
92 { "TEST.com:80:,,127.0.0.1,,,127.0.0.2,,,,::1,,,",
93 "test.com", 80, { "127.0.0.1", "127.0.0.2", IPV6ONLY("::1"), }
94 },
95 { "test.com:80:::1,127.0.0.1",
96 "test.com", 80, { IPV6ONLY("::1"), "127.0.0.1", }
97 },
98 { "test.com:80:[::1],127.0.0.1",
99 "test.com", 80, { IPV6ONLY("::1"), "127.0.0.1", }
100 },
101 { "test.com:80:::1",
102 "test.com", 80, { IPV6ONLY("::1"), }
103 },
104 { "test.com:80:[::1]",
105 "test.com", 80, { IPV6ONLY("::1"), }
106 },
107 { "test.com:80:127.0.0.1",
108 "test.com", 80, { "127.0.0.1", }
109 },
110 { "test.com:80:,127.0.0.1",
111 "test.com", 80, { "127.0.0.1", }
112 },
113 { "test.com:80:127.0.0.1,",
114 "test.com", 80, { "127.0.0.1", }
115 },
116 { "test.com:0:127.0.0.1",
117 "test.com", 0, { "127.0.0.1", }
118 },
119 };
120
121 UNITTEST_START
122 int i;
123 int testnum = sizeof(tests) / sizeof(struct testcase);
124
125 for(i = 0; i < testnum; ++i, curl_easy_reset(easy)) {
126 int j;
127 int addressnum = sizeof(tests[i].address) / sizeof(*tests[i].address);
128 struct Curl_addrinfo *addr;
129 struct Curl_dns_entry *dns;
130 struct curl_slist *list;
131 void *entry_id;
132 bool problem = false;
133
134 Curl_hostcache_clean(easy, hostcache);
135 easy->dns.hostcache = hostcache;
136 easy->dns.hostcachetype = HCACHE_GLOBAL;
137
138 list = curl_slist_append(NULL, tests[i].optval);
139 if(!list)
140 goto unit_test_abort;
141 curl_easy_setopt(easy, CURLOPT_RESOLVE, list);
142
143 Curl_loadhostpairs(easy);
144
145 entry_id = (void *)aprintf("%s:%d", tests[i].host, tests[i].port);
146 if(!entry_id) {
147 curl_slist_free_all(list);
148 goto unit_test_abort;
149 }
150 dns = Curl_hash_pick(easy->dns.hostcache, entry_id, strlen(entry_id) + 1);
151 free(entry_id);
152 entry_id = NULL;
153
154 addr = dns ? dns->addr : NULL;
155
156 for(j = 0; j < addressnum; ++j) {
157 long port = 0;
158 char ipaddress[MAX_IPADR_LEN] = {0};
159
160 if(!addr && !tests[i].address[j])
161 break;
162
163 if(tests[i].address[j] == &skip)
164 continue;
165
166 if(addr && !getaddressinfo(addr->ai_addr,
167 ipaddress, &port)) {
168 fprintf(stderr, "%s:%d tests[%d] failed. getaddressinfo failed.\n",
169 __FILE__, __LINE__, i);
170 problem = true;
171 break;
172 }
173
174 if(addr && !tests[i].address[j]) {
175 fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
176 "is %s but tests[%d].address[%d] is NULL.\n",
177 __FILE__, __LINE__, i, ipaddress, i, j);
178 problem = true;
179 break;
180 }
181
182 if(!addr && tests[i].address[j]) {
183 fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
184 "is NULL but tests[%d].address[%d] is %s.\n",
185 __FILE__, __LINE__, i, i, j, tests[i].address[j]);
186 problem = true;
187 break;
188 }
189
190 if(!curl_strequal(ipaddress, tests[i].address[j])) {
191 fprintf(stderr, "%s:%d tests[%d] failed. the retrieved addr "
192 "%s is not equal to tests[%d].address[%d] %s.\n",
193 __FILE__, __LINE__, i, ipaddress, i, j, tests[i].address[j]);
194 problem = true;
195 break;
196 }
197
198 if(port != tests[i].port) {
199 fprintf(stderr, "%s:%d tests[%d] failed. the retrieved port "
200 "for tests[%d].address[%d] is %ld but tests[%d].port is %d.\n",
201 __FILE__, __LINE__, i, i, j, port, i, tests[i].port);
202 problem = true;
203 break;
204 }
205
206 if(dns->timestamp != 0) {
207 fprintf(stderr, "%s:%d tests[%d] failed. the timestamp is not zero. "
208 "for tests[%d].address[%d\n",
209 __FILE__, __LINE__, i, i, j);
210 problem = true;
211 break;
212 }
213
214 addr = addr->ai_next;
215 }
216
217 Curl_hostcache_clean(easy, easy->dns.hostcache);
218 curl_slist_free_all(list);
219
220 if(problem) {
221 unitfail++;
222 continue;
223 }
224 }
225 UNITTEST_STOP
226