1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 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.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 * SPDX-License-Identifier: curl
22 *
23 ***************************************************************************/
24 #include "test.h"
25
26 #include <limits.h>
27 #include <assert.h>
28
29 #include "testutil.h"
30 #include "warnless.h"
31 #include "memdebug.h"
32
33 #define TEST_HANG_TIMEOUT 60 * 1000
34 #define MAX_EASY_HANDLES 3
35
36 static int counter[MAX_EASY_HANDLES];
37 static CURL *easy[MAX_EASY_HANDLES];
38 static curl_socket_t sockets[MAX_EASY_HANDLES];
39 static CURLcode res = CURLE_OK;
40
callback(char * ptr,size_t size,size_t nmemb,void * data)41 static size_t callback(char *ptr, size_t size, size_t nmemb, void *data)
42 {
43 ssize_t idx = ((CURL **) data) - easy;
44 curl_socket_t sock;
45 long longdata;
46 CURLcode code;
47 const size_t failure = (size && nmemb) ? 0 : 1;
48 (void)ptr;
49
50 counter[idx] += (int)(size * nmemb);
51
52 /* Get socket being used for this easy handle, otherwise CURL_SOCKET_BAD */
53 CURL_IGNORE_DEPRECATION(
54 code = curl_easy_getinfo(easy[idx], CURLINFO_LASTSOCKET, &longdata);
55 )
56 if(CURLE_OK != code) {
57 fprintf(stderr, "%s:%d curl_easy_getinfo() failed, "
58 "with code %d (%s)\n",
59 __FILE__, __LINE__, (int)code, curl_easy_strerror(code));
60 res = TEST_ERR_MAJOR_BAD;
61 return failure;
62 }
63 if(longdata == -1L)
64 sock = CURL_SOCKET_BAD;
65 else
66 sock = (curl_socket_t)longdata;
67
68 if(sock != CURL_SOCKET_BAD) {
69 /* Track relationship between this easy handle and the socket. */
70 if(sockets[idx] == CURL_SOCKET_BAD) {
71 /* An easy handle without previous socket, record the socket. */
72 sockets[idx] = sock;
73 }
74 else if(sock != sockets[idx]) {
75 /* An easy handle with a socket different to previously
76 tracked one, log and fail right away. Known bug #37. */
77 fprintf(stderr, "Handle %d started on socket %d and moved to %d\n",
78 curlx_sztosi(idx), (int)sockets[idx], (int)sock);
79 res = TEST_ERR_MAJOR_BAD;
80 return failure;
81 }
82 }
83 return size * nmemb;
84 }
85
86 enum HandleState {
87 ReadyForNewHandle,
88 NeedSocketForNewHandle,
89 NoMoreHandles
90 };
91
test(char * url)92 CURLcode test(char *url)
93 {
94 CURLM *multi = NULL;
95 int running;
96 int i;
97 int num_handles = 0;
98 enum HandleState state = ReadyForNewHandle;
99 size_t urllen = strlen(url) + 4 + 1;
100 char *full_url = malloc(urllen);
101
102 start_test_timing();
103
104 if(!full_url) {
105 fprintf(stderr, "Not enough memory for full url\n");
106 return TEST_ERR_MAJOR_BAD;
107 }
108
109 for(i = 0; i < MAX_EASY_HANDLES; ++i) {
110 easy[i] = NULL;
111 sockets[i] = CURL_SOCKET_BAD;
112 }
113
114 res_global_init(CURL_GLOBAL_ALL);
115 if(res) {
116 free(full_url);
117 return res;
118 }
119
120 multi_init(multi);
121
122 for(;;) {
123 struct timeval interval;
124 fd_set fdread;
125 fd_set fdwrite;
126 fd_set fdexcep;
127 long timeout = -99;
128 int maxfd = -99;
129 bool found_new_socket = FALSE;
130
131 /* Start a new handle if we aren't at the max */
132 if(state == ReadyForNewHandle) {
133 easy_init(easy[num_handles]);
134
135 if(num_handles % 3 == 2) {
136 msnprintf(full_url, urllen, "%s0200", url);
137 easy_setopt(easy[num_handles], CURLOPT_HTTPAUTH, CURLAUTH_NTLM);
138 }
139 else {
140 msnprintf(full_url, urllen, "%s0100", url);
141 easy_setopt(easy[num_handles], CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
142 }
143 easy_setopt(easy[num_handles], CURLOPT_FRESH_CONNECT, 1L);
144 easy_setopt(easy[num_handles], CURLOPT_URL, full_url);
145 easy_setopt(easy[num_handles], CURLOPT_VERBOSE, 1L);
146 easy_setopt(easy[num_handles], CURLOPT_HTTPGET, 1L);
147 easy_setopt(easy[num_handles], CURLOPT_USERPWD, "testuser:testpass");
148 easy_setopt(easy[num_handles], CURLOPT_WRITEFUNCTION, callback);
149 easy_setopt(easy[num_handles], CURLOPT_WRITEDATA, easy + num_handles);
150 easy_setopt(easy[num_handles], CURLOPT_HEADER, 1L);
151
152 multi_add_handle(multi, easy[num_handles]);
153 num_handles += 1;
154 state = NeedSocketForNewHandle;
155 }
156
157 multi_perform(multi, &running);
158
159 fprintf(stderr, "%s:%d running %d state %d\n",
160 __FILE__, __LINE__, running, state);
161
162 abort_on_test_timeout();
163
164 if(!running && state == NoMoreHandles)
165 break; /* done */
166
167 FD_ZERO(&fdread);
168 FD_ZERO(&fdwrite);
169 FD_ZERO(&fdexcep);
170
171 multi_fdset(multi, &fdread, &fdwrite, &fdexcep, &maxfd);
172
173 /* At this point, maxfd is guaranteed to be greater or equal than -1. */
174
175 if(state == NeedSocketForNewHandle) {
176 if(maxfd != -1 && !found_new_socket) {
177 fprintf(stderr, "Warning: socket did not open immediately for new "
178 "handle (trying again)\n");
179 continue;
180 }
181 state = num_handles < MAX_EASY_HANDLES ? ReadyForNewHandle
182 : NoMoreHandles;
183 fprintf(stderr, "%s:%d new state %d\n",
184 __FILE__, __LINE__, state);
185 }
186
187 multi_timeout(multi, &timeout);
188
189 /* At this point, timeout is guaranteed to be greater or equal than -1. */
190
191 fprintf(stderr, "%s:%d num_handles %d timeout %ld running %d\n",
192 __FILE__, __LINE__, num_handles, timeout, running);
193
194 if(timeout != -1L) {
195 int itimeout;
196 #if LONG_MAX > INT_MAX
197 itimeout = (timeout > (long)INT_MAX) ? INT_MAX : (int)timeout;
198 #else
199 itimeout = (int)timeout;
200 #endif
201 interval.tv_sec = itimeout/1000;
202 interval.tv_usec = (itimeout%1000)*1000;
203 }
204 else {
205 interval.tv_sec = 0;
206 interval.tv_usec = 5000;
207
208 /* if there's no timeout and we get here on the last handle, we may
209 already have read the last part of the stream so waiting makes no
210 sense */
211 if(!running && num_handles == MAX_EASY_HANDLES) {
212 break;
213 }
214 }
215
216 select_test(maxfd + 1, &fdread, &fdwrite, &fdexcep, &interval);
217
218 abort_on_test_timeout();
219 }
220
221 test_cleanup:
222
223 /* proper cleanup sequence - type PB */
224
225 for(i = 0; i < MAX_EASY_HANDLES; i++) {
226 printf("Data connection %d: %d\n", i, counter[i]);
227 curl_multi_remove_handle(multi, easy[i]);
228 curl_easy_cleanup(easy[i]);
229 }
230
231 curl_multi_cleanup(multi);
232 curl_global_cleanup();
233
234 free(full_url);
235
236 return res;
237 }
238
