1 /***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2021, 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 ***************************************************************************/
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 "vssh/ssh.h"
30 #include "quic.h"
31 #include "curl_printf.h"
32
33 #ifdef USE_ARES
34 # if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
35 defined(WIN32)
36 # define CARES_STATICLIB
37 # endif
38 # include <ares.h>
39 #endif
40
41 #ifdef USE_LIBIDN2
42 #include <idn2.h>
43 #endif
44
45 #ifdef USE_LIBPSL
46 #include <libpsl.h>
47 #endif
48
49 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
50 #include <iconv.h>
51 #endif
52
53 #ifdef USE_LIBRTMP
54 #include <librtmp/rtmp.h>
55 #endif
56
57 #ifdef HAVE_ZLIB_H
58 #include <zlib.h>
59 #endif
60
61 #ifdef HAVE_BROTLI
62 #include <brotli/decode.h>
63 #endif
64
65 #ifdef HAVE_ZSTD
66 #include <zstd.h>
67 #endif
68
69 #ifdef USE_GSASL
70 #include <gsasl.h>
71 #endif
72
73 #ifdef USE_OPENLDAP
74 #include <ldap.h>
75 #endif
76
77 #ifdef HAVE_BROTLI
brotli_version(char * buf,size_t bufsz)78 static void brotli_version(char *buf, size_t bufsz)
79 {
80 uint32_t brotli_version = BrotliDecoderVersion();
81 unsigned int major = brotli_version >> 24;
82 unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12;
83 unsigned int patch = brotli_version & 0x00000FFF;
84 (void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
85 }
86 #endif
87
88 #ifdef HAVE_ZSTD
zstd_version(char * buf,size_t bufsz)89 static void zstd_version(char *buf, size_t bufsz)
90 {
91 unsigned long zstd_version = (unsigned long)ZSTD_versionNumber();
92 unsigned int major = (unsigned int)(zstd_version / (100 * 100));
93 unsigned int minor = (unsigned int)((zstd_version -
94 (major * 100 * 100)) / 100);
95 unsigned int patch = (unsigned int)(zstd_version -
96 (major * 100 * 100) - (minor * 100));
97 (void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
98 }
99 #endif
100
101 /*
102 * curl_version() returns a pointer to a static buffer.
103 *
104 * It is implemented to work multi-threaded by making sure repeated invokes
105 * generate the exact same string and never write any temporary data like
106 * zeros in the data.
107 */
108
109 #define VERSION_PARTS 17 /* number of substrings we can concatenate */
110
curl_version(void)111 char *curl_version(void)
112 {
113 static char out[300];
114 char *outp;
115 size_t outlen;
116 const char *src[VERSION_PARTS];
117 #ifdef USE_SSL
118 char ssl_version[200];
119 #endif
120 #ifdef HAVE_LIBZ
121 char z_version[40];
122 #endif
123 #ifdef HAVE_BROTLI
124 char br_version[40] = "brotli/";
125 #endif
126 #ifdef HAVE_ZSTD
127 char zst_version[40] = "zstd/";
128 #endif
129 #ifdef USE_ARES
130 char cares_version[40];
131 #endif
132 #if defined(USE_LIBIDN2)
133 char idn_version[40];
134 #endif
135 #ifdef USE_LIBPSL
136 char psl_version[40];
137 #endif
138 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
139 char iconv_version[40]="iconv";
140 #endif
141 #ifdef USE_SSH
142 char ssh_version[40];
143 #endif
144 #ifdef USE_NGHTTP2
145 char h2_version[40];
146 #endif
147 #ifdef ENABLE_QUIC
148 char h3_version[40];
149 #endif
150 #ifdef USE_LIBRTMP
151 char rtmp_version[40];
152 #endif
153 #ifdef USE_HYPER
154 char hyper_buf[30];
155 #endif
156 #ifdef USE_GSASL
157 char gsasl_buf[30];
158 #endif
159 #ifdef USE_OPENLDAP
160 char ldap_buf[30];
161 #endif
162 int i = 0;
163 int j;
164
165 #ifdef DEBUGBUILD
166 /* Override version string when environment variable CURL_VERSION is set */
167 const char *debugversion = getenv("CURL_VERSION");
168 if(debugversion) {
169 strncpy(out, debugversion, sizeof(out)-1);
170 out[sizeof(out)-1] = '\0';
171 return out;
172 }
173 #endif
174
175 src[i++] = LIBCURL_NAME "/" LIBCURL_VERSION;
176 #ifdef USE_SSL
177 Curl_ssl_version(ssl_version, sizeof(ssl_version));
178 src[i++] = ssl_version;
179 #endif
180 #ifdef HAVE_LIBZ
181 msnprintf(z_version, sizeof(z_version), "zlib/%s", zlibVersion());
182 src[i++] = z_version;
183 #endif
184 #ifdef HAVE_BROTLI
185 brotli_version(&br_version[7], sizeof(br_version) - 7);
186 src[i++] = br_version;
187 #endif
188 #ifdef HAVE_ZSTD
189 zstd_version(&zst_version[5], sizeof(zst_version) - 5);
190 src[i++] = zst_version;
191 #endif
192 #ifdef USE_ARES
193 msnprintf(cares_version, sizeof(cares_version),
194 "c-ares/%s", ares_version(NULL));
195 src[i++] = cares_version;
196 #endif
197 #ifdef USE_LIBIDN2
198 msnprintf(idn_version, sizeof(idn_version),
199 "libidn2/%s", idn2_check_version(NULL));
200 src[i++] = idn_version;
201 #elif defined(USE_WIN32_IDN)
202 src[i++] = (char *)"WinIDN";
203 #endif
204
205 #ifdef USE_LIBPSL
206 msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version());
207 src[i++] = psl_version;
208 #endif
209 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
210 #ifdef _LIBICONV_VERSION
211 msnprintf(iconv_version, sizeof(iconv_version), "iconv/%d.%d",
212 _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
213 #else
214 /* version unknown, let the default stand */
215 #endif /* _LIBICONV_VERSION */
216 src[i++] = iconv_version;
217 #endif
218 #ifdef USE_SSH
219 Curl_ssh_version(ssh_version, sizeof(ssh_version));
220 src[i++] = ssh_version;
221 #endif
222 #ifdef USE_NGHTTP2
223 Curl_http2_ver(h2_version, sizeof(h2_version));
224 src[i++] = h2_version;
225 #endif
226 #ifdef ENABLE_QUIC
227 Curl_quic_ver(h3_version, sizeof(h3_version));
228 src[i++] = h3_version;
229 #endif
230 #ifdef USE_LIBRTMP
231 {
232 char suff[2];
233 if(RTMP_LIB_VERSION & 0xff) {
234 suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
235 suff[1] = '\0';
236 }
237 else
238 suff[0] = '\0';
239
240 msnprintf(rtmp_version, sizeof(rtmp_version), "librtmp/%d.%d%s",
241 RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
242 suff);
243 src[i++] = rtmp_version;
244 }
245 #endif
246 #ifdef USE_HYPER
247 msnprintf(hyper_buf, sizeof(hyper_buf), "Hyper/%s", hyper_version());
248 src[i++] = hyper_buf;
249 #endif
250 #ifdef USE_GSASL
251 msnprintf(gsasl_buf, sizeof(gsasl_buf), "libgsasl/%s",
252 gsasl_check_version(NULL));
253 src[i++] = gsasl_buf;
254 #endif
255 #ifdef USE_OPENLDAP
256 {
257 LDAPAPIInfo api;
258 api.ldapai_info_version = LDAP_API_INFO_VERSION;
259
260 if(ldap_get_option(NULL, LDAP_OPT_API_INFO, &api) == LDAP_OPT_SUCCESS) {
261 unsigned int patch = api.ldapai_vendor_version % 100;
262 unsigned int major = api.ldapai_vendor_version / 10000;
263 unsigned int minor =
264 ((api.ldapai_vendor_version - major * 10000) - patch) / 100;
265 msnprintf(ldap_buf, sizeof(ldap_buf), "%s/%u.%u.%u",
266 api.ldapai_vendor_name, major, minor, patch);
267 src[i++] = ldap_buf;
268 ldap_memfree(api.ldapai_vendor_name);
269 ber_memvfree((void **)api.ldapai_extensions);
270 }
271 }
272 #endif
273
274 DEBUGASSERT(i <= VERSION_PARTS);
275
276 outp = &out[0];
277 outlen = sizeof(out);
278 for(j = 0; j < i; j++) {
279 size_t n = strlen(src[j]);
280 /* we need room for a space, the string and the final zero */
281 if(outlen <= (n + 2))
282 break;
283 if(j) {
284 /* prepend a space if not the first */
285 *outp++ = ' ';
286 outlen--;
287 }
288 memcpy(outp, src[j], n);
289 outp += n;
290 outlen -= n;
291 }
292 *outp = 0;
293
294 return out;
295 }
296
297 /* data for curl_version_info
298
299 Keep the list sorted alphabetically. It is also written so that each
300 protocol line has its own #if line to make things easier on the eye.
301 */
302
303 static const char * const protocols[] = {
304 #ifndef CURL_DISABLE_DICT
305 "dict",
306 #endif
307 #ifndef CURL_DISABLE_FILE
308 "file",
309 #endif
310 #ifndef CURL_DISABLE_FTP
311 "ftp",
312 #endif
313 #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
314 "ftps",
315 #endif
316 #ifndef CURL_DISABLE_GOPHER
317 "gopher",
318 #endif
319 #if defined(USE_SSL) && !defined(CURL_DISABLE_GOPHER)
320 "gophers",
321 #endif
322 #ifndef CURL_DISABLE_HTTP
323 "http",
324 #endif
325 #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
326 "https",
327 #endif
328 #ifndef CURL_DISABLE_IMAP
329 "imap",
330 #endif
331 #if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
332 "imaps",
333 #endif
334 #ifndef CURL_DISABLE_LDAP
335 "ldap",
336 #if !defined(CURL_DISABLE_LDAPS) && \
337 ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
338 (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
339 "ldaps",
340 #endif
341 #endif
342 #ifndef CURL_DISABLE_MQTT
343 "mqtt",
344 #endif
345 #ifndef CURL_DISABLE_POP3
346 "pop3",
347 #endif
348 #if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
349 "pop3s",
350 #endif
351 #ifdef USE_LIBRTMP
352 "rtmp",
353 #endif
354 #ifndef CURL_DISABLE_RTSP
355 "rtsp",
356 #endif
357 #if defined(USE_SSH) && !defined(USE_WOLFSSH)
358 "scp",
359 #endif
360 #ifdef USE_SSH
361 "sftp",
362 #endif
363 #if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \
364 (SIZEOF_CURL_OFF_T > 4)
365 "smb",
366 # ifdef USE_SSL
367 "smbs",
368 # endif
369 #endif
370 #ifndef CURL_DISABLE_SMTP
371 "smtp",
372 #endif
373 #if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
374 "smtps",
375 #endif
376 #ifndef CURL_DISABLE_TELNET
377 "telnet",
378 #endif
379 #ifndef CURL_DISABLE_TFTP
380 "tftp",
381 #endif
382
383 NULL
384 };
385
386 static curl_version_info_data version_info = {
387 CURLVERSION_NOW,
388 LIBCURL_VERSION,
389 LIBCURL_VERSION_NUM,
390 OS, /* as found by configure or set by hand at build-time */
391 0 /* features is 0 by default */
392 #ifdef ENABLE_IPV6
393 | CURL_VERSION_IPV6
394 #endif
395 #ifdef USE_SSL
396 | CURL_VERSION_SSL
397 #endif
398 #ifdef USE_NTLM
399 | CURL_VERSION_NTLM
400 #endif
401 #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
402 defined(NTLM_WB_ENABLED)
403 | CURL_VERSION_NTLM_WB
404 #endif
405 #ifdef USE_SPNEGO
406 | CURL_VERSION_SPNEGO
407 #endif
408 #ifdef USE_KERBEROS5
409 | CURL_VERSION_KERBEROS5
410 #endif
411 #ifdef HAVE_GSSAPI
412 | CURL_VERSION_GSSAPI
413 #endif
414 #ifdef USE_WINDOWS_SSPI
415 | CURL_VERSION_SSPI
416 #endif
417 #ifdef HAVE_LIBZ
418 | CURL_VERSION_LIBZ
419 #endif
420 #ifdef DEBUGBUILD
421 | CURL_VERSION_DEBUG
422 #endif
423 #ifdef CURLDEBUG
424 | CURL_VERSION_CURLDEBUG
425 #endif
426 #ifdef CURLRES_ASYNCH
427 | CURL_VERSION_ASYNCHDNS
428 #endif
429 #if (SIZEOF_CURL_OFF_T > 4) && \
430 ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
431 | CURL_VERSION_LARGEFILE
432 #endif
433 #if defined(WIN32) && defined(UNICODE) && defined(_UNICODE)
434 | CURL_VERSION_UNICODE
435 #endif
436 #if defined(CURL_DOES_CONVERSIONS)
437 | CURL_VERSION_CONV
438 #endif
439 #if defined(USE_TLS_SRP)
440 | CURL_VERSION_TLSAUTH_SRP
441 #endif
442 #if defined(USE_NGHTTP2) || defined(USE_HYPER)
443 | CURL_VERSION_HTTP2
444 #endif
445 #if defined(ENABLE_QUIC)
446 | CURL_VERSION_HTTP3
447 #endif
448 #if defined(USE_UNIX_SOCKETS)
449 | CURL_VERSION_UNIX_SOCKETS
450 #endif
451 #if defined(USE_LIBPSL)
452 | CURL_VERSION_PSL
453 #endif
454 #if defined(CURL_WITH_MULTI_SSL)
455 | CURL_VERSION_MULTI_SSL
456 #endif
457 #if defined(HAVE_BROTLI)
458 | CURL_VERSION_BROTLI
459 #endif
460 #if defined(HAVE_ZSTD)
461 | CURL_VERSION_ZSTD
462 #endif
463 #ifndef CURL_DISABLE_ALTSVC
464 | CURL_VERSION_ALTSVC
465 #endif
466 #ifndef CURL_DISABLE_HSTS
467 | CURL_VERSION_HSTS
468 #endif
469 #if defined(USE_GSASL)
470 | CURL_VERSION_GSASL
471 #endif
472 ,
473 NULL, /* ssl_version */
474 0, /* ssl_version_num, this is kept at zero */
475 NULL, /* zlib_version */
476 protocols,
477 NULL, /* c-ares version */
478 0, /* c-ares version numerical */
479 NULL, /* libidn version */
480 0, /* iconv version */
481 NULL, /* ssh lib version */
482 0, /* brotli_ver_num */
483 NULL, /* brotli version */
484 0, /* nghttp2 version number */
485 NULL, /* nghttp2 version string */
486 NULL, /* quic library string */
487 #ifdef CURL_CA_BUNDLE
488 CURL_CA_BUNDLE, /* cainfo */
489 #else
490 NULL,
491 #endif
492 #ifdef CURL_CA_PATH
493 CURL_CA_PATH, /* capath */
494 #else
495 NULL,
496 #endif
497 0, /* zstd_ver_num */
498 NULL, /* zstd version */
499 NULL, /* Hyper version */
500 NULL /* gsasl version */
501 };
502
curl_version_info(CURLversion stamp)503 curl_version_info_data *curl_version_info(CURLversion stamp)
504 {
505 #if defined(USE_SSH)
506 static char ssh_buffer[80];
507 #endif
508 #ifdef USE_SSL
509 #ifdef CURL_WITH_MULTI_SSL
510 static char ssl_buffer[200];
511 #else
512 static char ssl_buffer[80];
513 #endif
514 #endif
515 #ifdef HAVE_BROTLI
516 static char brotli_buffer[80];
517 #endif
518 #ifdef HAVE_ZSTD
519 static char zstd_buffer[80];
520 #endif
521
522 #ifdef USE_SSL
523 Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
524 version_info.ssl_version = ssl_buffer;
525 #ifndef CURL_DISABLE_PROXY
526 if(Curl_ssl->supports & SSLSUPP_HTTPS_PROXY)
527 version_info.features |= CURL_VERSION_HTTPS_PROXY;
528 else
529 version_info.features &= ~CURL_VERSION_HTTPS_PROXY;
530 #endif
531 #endif
532
533 #ifdef HAVE_LIBZ
534 version_info.libz_version = zlibVersion();
535 /* libz left NULL if non-existing */
536 #endif
537 #ifdef USE_ARES
538 {
539 int aresnum;
540 version_info.ares = ares_version(&aresnum);
541 version_info.ares_num = aresnum;
542 }
543 #endif
544 #ifdef USE_LIBIDN2
545 /* This returns a version string if we use the given version or later,
546 otherwise it returns NULL */
547 version_info.libidn = idn2_check_version(IDN2_VERSION);
548 if(version_info.libidn)
549 version_info.features |= CURL_VERSION_IDN;
550 #elif defined(USE_WIN32_IDN)
551 version_info.features |= CURL_VERSION_IDN;
552 #endif
553
554 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
555 #ifdef _LIBICONV_VERSION
556 version_info.iconv_ver_num = _LIBICONV_VERSION;
557 #else
558 /* version unknown */
559 version_info.iconv_ver_num = -1;
560 #endif /* _LIBICONV_VERSION */
561 #endif
562
563 #if defined(USE_SSH)
564 Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer));
565 version_info.libssh_version = ssh_buffer;
566 #endif
567
568 #ifdef HAVE_BROTLI
569 version_info.brotli_ver_num = BrotliDecoderVersion();
570 brotli_version(brotli_buffer, sizeof(brotli_buffer));
571 version_info.brotli_version = brotli_buffer;
572 #endif
573
574 #ifdef HAVE_ZSTD
575 version_info.zstd_ver_num = (unsigned int)ZSTD_versionNumber();
576 zstd_version(zstd_buffer, sizeof(zstd_buffer));
577 version_info.zstd_version = zstd_buffer;
578 #endif
579
580 #ifdef USE_NGHTTP2
581 {
582 nghttp2_info *h2 = nghttp2_version(0);
583 version_info.nghttp2_ver_num = h2->version_num;
584 version_info.nghttp2_version = h2->version_str;
585 }
586 #endif
587
588 #ifdef ENABLE_QUIC
589 {
590 static char quicbuffer[80];
591 Curl_quic_ver(quicbuffer, sizeof(quicbuffer));
592 version_info.quic_version = quicbuffer;
593 }
594 #endif
595
596 #ifdef USE_HYPER
597 {
598 static char hyper_buffer[30];
599 msnprintf(hyper_buffer, sizeof(hyper_buffer), "Hyper/%s", hyper_version());
600 version_info.hyper_version = hyper_buffer;
601 }
602 #endif
603
604 #ifdef USE_GSASL
605 {
606 version_info.gsasl_version = gsasl_check_version(NULL);
607 }
608 #endif
609
610 (void)stamp; /* avoid compiler warnings, we don't use this */
611 return &version_info;
612 }
613