1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2016, 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
23 #include "curl_setup.h"
24
25 #include <curl/curl.h>
26 #include "urldata.h"
27 #include "vtls/vtls.h"
28 #include "http2.h"
29 #include "curl_printf.h"
30
31 #ifdef USE_ARES
32 # if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
33 (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
34 # define CARES_STATICLIB
35 # endif
36 # include <ares.h>
37 #endif
38
39 #ifdef USE_LIBIDN
40 #include <stringprep.h>
41 #endif
42
43 #ifdef USE_LIBPSL
44 #include <libpsl.h>
45 #endif
46
47 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
48 #include <iconv.h>
49 #endif
50
51 #ifdef USE_LIBRTMP
52 #include <librtmp/rtmp.h>
53 #endif
54
55 #ifdef USE_LIBSSH2
56 #include <libssh2.h>
57 #endif
58
59 #ifdef HAVE_LIBSSH2_VERSION
60 /* get it run-time if possible */
61 #define CURL_LIBSSH2_VERSION libssh2_version(0)
62 #else
63 /* use build-time if run-time not possible */
64 #define CURL_LIBSSH2_VERSION LIBSSH2_VERSION
65 #endif
66
67 void Curl_version_init(void);
68
69 /* For thread safety purposes this function is called by global_init so that
70 the static data in both version functions is initialized. */
Curl_version_init(void)71 void Curl_version_init(void)
72 {
73 curl_version();
74 curl_version_info(CURLVERSION_NOW);
75 }
76
curl_version(void)77 char *curl_version(void)
78 {
79 static bool initialized;
80 static char version[200];
81 char *ptr = version;
82 size_t len;
83 size_t left = sizeof(version);
84
85 if(initialized)
86 return version;
87
88 strcpy(ptr, LIBCURL_NAME "/" LIBCURL_VERSION);
89 len = strlen(ptr);
90 left -= len;
91 ptr += len;
92
93 if(left > 1) {
94 len = Curl_ssl_version(ptr + 1, left - 1);
95
96 if(len > 0) {
97 *ptr = ' ';
98 left -= ++len;
99 ptr += len;
100 }
101 }
102
103 #ifdef HAVE_LIBZ
104 len = snprintf(ptr, left, " zlib/%s", zlibVersion());
105 left -= len;
106 ptr += len;
107 #endif
108 #ifdef USE_ARES
109 /* this function is only present in c-ares, not in the original ares */
110 len = snprintf(ptr, left, " c-ares/%s", ares_version(NULL));
111 left -= len;
112 ptr += len;
113 #endif
114 #ifdef USE_LIBIDN
115 if(stringprep_check_version(LIBIDN_REQUIRED_VERSION)) {
116 len = snprintf(ptr, left, " libidn/%s", stringprep_check_version(NULL));
117 left -= len;
118 ptr += len;
119 }
120 #endif
121 #ifdef USE_LIBPSL
122 len = snprintf(ptr, left, " libpsl/%s", psl_get_version());
123 left -= len;
124 ptr += len;
125 #endif
126 #ifdef USE_WIN32_IDN
127 len = snprintf(ptr, left, " WinIDN");
128 left -= len;
129 ptr += len;
130 #endif
131 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
132 #ifdef _LIBICONV_VERSION
133 len = snprintf(ptr, left, " iconv/%d.%d",
134 _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
135 #else
136 /* version unknown */
137 len = snprintf(ptr, left, " iconv");
138 #endif /* _LIBICONV_VERSION */
139 left -= len;
140 ptr += len;
141 #endif
142 #ifdef USE_LIBSSH2
143 len = snprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
144 left -= len;
145 ptr += len;
146 #endif
147 #ifdef USE_NGHTTP2
148 len = Curl_http2_ver(ptr, left);
149 left -= len;
150 ptr += len;
151 #endif
152 #ifdef USE_LIBRTMP
153 {
154 char suff[2];
155 if(RTMP_LIB_VERSION & 0xff) {
156 suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
157 suff[1] = '\0';
158 }
159 else
160 suff[0] = '\0';
161
162 snprintf(ptr, left, " librtmp/%d.%d%s",
163 RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
164 suff);
165 /*
166 If another lib version is added below this one, this code would
167 also have to do:
168
169 len = what snprintf() returned
170
171 left -= len;
172 ptr += len;
173 */
174 }
175 #endif
176
177 initialized = true;
178 return version;
179 }
180
181 /* data for curl_version_info
182
183 Keep the list sorted alphabetically. It is also written so that each
184 protocol line has its own #if line to make things easier on the eye.
185 */
186
187 static const char * const protocols[] = {
188 #ifndef CURL_DISABLE_DICT
189 "dict",
190 #endif
191 #ifndef CURL_DISABLE_FILE
192 "file",
193 #endif
194 #ifndef CURL_DISABLE_FTP
195 "ftp",
196 #endif
197 #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
198 "ftps",
199 #endif
200 #ifndef CURL_DISABLE_GOPHER
201 "gopher",
202 #endif
203 #ifndef CURL_DISABLE_HTTP
204 "http",
205 #endif
206 #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
207 "https",
208 #endif
209 #ifndef CURL_DISABLE_IMAP
210 "imap",
211 #endif
212 #if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
213 "imaps",
214 #endif
215 #ifndef CURL_DISABLE_LDAP
216 "ldap",
217 #if !defined(CURL_DISABLE_LDAPS) && \
218 ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
219 (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
220 "ldaps",
221 #endif
222 #endif
223 #ifndef CURL_DISABLE_POP3
224 "pop3",
225 #endif
226 #if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
227 "pop3s",
228 #endif
229 #ifdef USE_LIBRTMP
230 "rtmp",
231 #endif
232 #ifndef CURL_DISABLE_RTSP
233 "rtsp",
234 #endif
235 #ifdef USE_LIBSSH2
236 "scp",
237 #endif
238 #ifdef USE_LIBSSH2
239 "sftp",
240 #endif
241 #if !defined(CURL_DISABLE_SMB) && defined(USE_NTLM) && \
242 (CURL_SIZEOF_CURL_OFF_T > 4) && \
243 (!defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO))
244 "smb",
245 # ifdef USE_SSL
246 "smbs",
247 # endif
248 #endif
249 #ifndef CURL_DISABLE_SMTP
250 "smtp",
251 #endif
252 #if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
253 "smtps",
254 #endif
255 #ifndef CURL_DISABLE_TELNET
256 "telnet",
257 #endif
258 #ifndef CURL_DISABLE_TFTP
259 "tftp",
260 #endif
261
262 NULL
263 };
264
265 static curl_version_info_data version_info = {
266 CURLVERSION_NOW,
267 LIBCURL_VERSION,
268 LIBCURL_VERSION_NUM,
269 OS, /* as found by configure or set by hand at build-time */
270 0 /* features is 0 by default */
271 #ifdef ENABLE_IPV6
272 | CURL_VERSION_IPV6
273 #endif
274 #ifdef USE_SSL
275 | CURL_VERSION_SSL
276 #endif
277 #ifdef USE_NTLM
278 | CURL_VERSION_NTLM
279 #endif
280 #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
281 defined(NTLM_WB_ENABLED)
282 | CURL_VERSION_NTLM_WB
283 #endif
284 #ifdef USE_SPNEGO
285 | CURL_VERSION_SPNEGO
286 #endif
287 #ifdef USE_KERBEROS5
288 | CURL_VERSION_KERBEROS5
289 #endif
290 #ifdef HAVE_GSSAPI
291 | CURL_VERSION_GSSAPI
292 #endif
293 #ifdef USE_WINDOWS_SSPI
294 | CURL_VERSION_SSPI
295 #endif
296 #ifdef HAVE_LIBZ
297 | CURL_VERSION_LIBZ
298 #endif
299 #ifdef DEBUGBUILD
300 | CURL_VERSION_DEBUG
301 #endif
302 #ifdef CURLDEBUG
303 | CURL_VERSION_CURLDEBUG
304 #endif
305 #ifdef CURLRES_ASYNCH
306 | CURL_VERSION_ASYNCHDNS
307 #endif
308 #if (CURL_SIZEOF_CURL_OFF_T > 4) && \
309 ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
310 | CURL_VERSION_LARGEFILE
311 #endif
312 #if defined(CURL_DOES_CONVERSIONS)
313 | CURL_VERSION_CONV
314 #endif
315 #if defined(USE_TLS_SRP)
316 | CURL_VERSION_TLSAUTH_SRP
317 #endif
318 #if defined(USE_NGHTTP2)
319 | CURL_VERSION_HTTP2
320 #endif
321 #if defined(USE_UNIX_SOCKETS)
322 | CURL_VERSION_UNIX_SOCKETS
323 #endif
324 #if defined(USE_LIBPSL)
325 | CURL_VERSION_PSL
326 #endif
327 ,
328 NULL, /* ssl_version */
329 0, /* ssl_version_num, this is kept at zero */
330 NULL, /* zlib_version */
331 protocols,
332 NULL, /* c-ares version */
333 0, /* c-ares version numerical */
334 NULL, /* libidn version */
335 0, /* iconv version */
336 NULL, /* ssh lib version */
337 };
338
curl_version_info(CURLversion stamp)339 curl_version_info_data *curl_version_info(CURLversion stamp)
340 {
341 static bool initialized;
342 #ifdef USE_LIBSSH2
343 static char ssh_buffer[80];
344 #endif
345 #ifdef USE_SSL
346 static char ssl_buffer[80];
347 #endif
348
349 if(initialized)
350 return &version_info;
351
352 #ifdef USE_SSL
353 Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
354 version_info.ssl_version = ssl_buffer;
355 #endif
356
357 #ifdef HAVE_LIBZ
358 version_info.libz_version = zlibVersion();
359 /* libz left NULL if non-existing */
360 #endif
361 #ifdef USE_ARES
362 {
363 int aresnum;
364 version_info.ares = ares_version(&aresnum);
365 version_info.ares_num = aresnum;
366 }
367 #endif
368 #ifdef USE_LIBIDN
369 /* This returns a version string if we use the given version or later,
370 otherwise it returns NULL */
371 version_info.libidn = stringprep_check_version(LIBIDN_REQUIRED_VERSION);
372 if(version_info.libidn)
373 version_info.features |= CURL_VERSION_IDN;
374 #elif defined(USE_WIN32_IDN)
375 version_info.features |= CURL_VERSION_IDN;
376 #endif
377
378 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
379 #ifdef _LIBICONV_VERSION
380 version_info.iconv_ver_num = _LIBICONV_VERSION;
381 #else
382 /* version unknown */
383 version_info.iconv_ver_num = -1;
384 #endif /* _LIBICONV_VERSION */
385 #endif
386
387 #ifdef USE_LIBSSH2
388 snprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
389 version_info.libssh_version = ssh_buffer;
390 #endif
391
392 (void)stamp; /* avoid compiler warnings, we don't use this */
393
394 initialized = true;
395 return &version_info;
396 }
397