source: azure_iot_hub/trunk/curl-7.57.0/lib/version.c@ 389

Last change on this file since 389 was 389, checked in by coas-nagasima, 5 years ago

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1/***************************************************************************
2 * _ _ ____ _
3 * Project ___| | | | _ \| |
4 * / __| | | | |_) | |
5 * | (__| |_| | _ <| |___
6 * \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2017, 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_LIBIDN2
40#include <idn2.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#ifdef HAVE_ZLIB_H
68#include <zlib.h>
69#ifdef __SYMBIAN32__
70/* zlib pollutes the namespace with this definition */
71#undef WIN32
72#endif
73#endif
74
75#ifdef HAVE_BROTLI
76#include <brotli/decode.h>
77#endif
78
79void Curl_version_init(void);
80
81/* For thread safety purposes this function is called by global_init so that
82 the static data in both version functions is initialized. */
83void Curl_version_init(void)
84{
85 curl_version();
86 curl_version_info(CURLVERSION_NOW);
87}
88
89#ifdef HAVE_BROTLI
90static size_t brotli_version(char *buf, size_t bufsz)
91{
92 uint32_t brotli_version = BrotliDecoderVersion();
93 unsigned int major = brotli_version >> 24;
94 unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12;
95 unsigned int patch = brotli_version & 0x00000FFF;
96
97 return snprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
98}
99#endif
100
101char *curl_version(void)
102{
103 static bool initialized;
104 static char version[200];
105 char *ptr = version;
106 size_t len;
107 size_t left = sizeof(version);
108
109 if(initialized)
110 return version;
111
112 strcpy(ptr, LIBCURL_NAME "/" LIBCURL_VERSION);
113 len = strlen(ptr);
114 left -= len;
115 ptr += len;
116
117 if(left > 1) {
118 len = Curl_ssl_version(ptr + 1, left - 1);
119
120 if(len > 0) {
121 *ptr = ' ';
122 left -= ++len;
123 ptr += len;
124 }
125 }
126
127#ifdef HAVE_LIBZ
128 len = snprintf(ptr, left, " zlib/%s", zlibVersion());
129 left -= len;
130 ptr += len;
131#endif
132#ifdef HAVE_BROTLI
133 len = snprintf(ptr, left, "%s", " brotli/");
134 left -= len;
135 ptr += len;
136 len = brotli_version(ptr, left);
137 left -= len;
138 ptr += len;
139#endif
140#ifdef USE_ARES
141 /* this function is only present in c-ares, not in the original ares */
142 len = snprintf(ptr, left, " c-ares/%s", ares_version(NULL));
143 left -= len;
144 ptr += len;
145#endif
146#ifdef USE_LIBIDN2
147 if(idn2_check_version(IDN2_VERSION)) {
148 len = snprintf(ptr, left, " libidn2/%s", idn2_check_version(NULL));
149 left -= len;
150 ptr += len;
151 }
152#endif
153#ifdef USE_LIBPSL
154 len = snprintf(ptr, left, " libpsl/%s", psl_get_version());
155 left -= len;
156 ptr += len;
157#endif
158#ifdef USE_WIN32_IDN
159 len = snprintf(ptr, left, " WinIDN");
160 left -= len;
161 ptr += len;
162#endif
163#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
164#ifdef _LIBICONV_VERSION
165 len = snprintf(ptr, left, " iconv/%d.%d",
166 _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
167#else
168 /* version unknown */
169 len = snprintf(ptr, left, " iconv");
170#endif /* _LIBICONV_VERSION */
171 left -= len;
172 ptr += len;
173#endif
174#ifdef USE_LIBSSH2
175 len = snprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
176 left -= len;
177 ptr += len;
178#endif
179#ifdef USE_NGHTTP2
180 len = Curl_http2_ver(ptr, left);
181 left -= len;
182 ptr += len;
183#endif
184#ifdef USE_LIBRTMP
185 {
186 char suff[2];
187 if(RTMP_LIB_VERSION & 0xff) {
188 suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
189 suff[1] = '\0';
190 }
191 else
192 suff[0] = '\0';
193
194 snprintf(ptr, left, " librtmp/%d.%d%s",
195 RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
196 suff);
197/*
198 If another lib version is added below this one, this code would
199 also have to do:
200
201 len = what snprintf() returned
202
203 left -= len;
204 ptr += len;
205*/
206 }
207#endif
208
209 initialized = true;
210 return version;
211}
212
213/* data for curl_version_info
214
215 Keep the list sorted alphabetically. It is also written so that each
216 protocol line has its own #if line to make things easier on the eye.
217 */
218
219static const char * const protocols[] = {
220#ifndef CURL_DISABLE_DICT
221 "dict",
222#endif
223#ifndef CURL_DISABLE_FILE
224 "file",
225#endif
226#ifndef CURL_DISABLE_FTP
227 "ftp",
228#endif
229#if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
230 "ftps",
231#endif
232#ifndef CURL_DISABLE_GOPHER
233 "gopher",
234#endif
235#ifndef CURL_DISABLE_HTTP
236 "http",
237#endif
238#if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
239 "https",
240#endif
241#ifndef CURL_DISABLE_IMAP
242 "imap",
243#endif
244#if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
245 "imaps",
246#endif
247#ifndef CURL_DISABLE_LDAP
248 "ldap",
249#if !defined(CURL_DISABLE_LDAPS) && \
250 ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
251 (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
252 "ldaps",
253#endif
254#endif
255#ifndef CURL_DISABLE_POP3
256 "pop3",
257#endif
258#if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
259 "pop3s",
260#endif
261#ifdef USE_LIBRTMP
262 "rtmp",
263#endif
264#ifndef CURL_DISABLE_RTSP
265 "rtsp",
266#endif
267#ifdef USE_LIBSSH2
268 "scp",
269#endif
270#ifdef USE_LIBSSH2
271 "sftp",
272#endif
273#if !defined(CURL_DISABLE_SMB) && defined(USE_NTLM) && \
274 (CURL_SIZEOF_CURL_OFF_T > 4) && \
275 (!defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO))
276 "smb",
277# ifdef USE_SSL
278 "smbs",
279# endif
280#endif
281#ifndef CURL_DISABLE_SMTP
282 "smtp",
283#endif
284#if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
285 "smtps",
286#endif
287#ifndef CURL_DISABLE_TELNET
288 "telnet",
289#endif
290#ifndef CURL_DISABLE_TFTP
291 "tftp",
292#endif
293
294 NULL
295};
296
297static curl_version_info_data version_info = {
298 CURLVERSION_NOW,
299 LIBCURL_VERSION,
300 LIBCURL_VERSION_NUM,
301 OS, /* as found by configure or set by hand at build-time */
302 0 /* features is 0 by default */
303#ifdef ENABLE_IPV6
304 | CURL_VERSION_IPV6
305#endif
306#ifdef USE_SSL
307 | CURL_VERSION_SSL
308#endif
309#ifdef USE_NTLM
310 | CURL_VERSION_NTLM
311#endif
312#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
313 defined(NTLM_WB_ENABLED)
314 | CURL_VERSION_NTLM_WB
315#endif
316#ifdef USE_SPNEGO
317 | CURL_VERSION_SPNEGO
318#endif
319#ifdef USE_KERBEROS5
320 | CURL_VERSION_KERBEROS5
321#endif
322#ifdef HAVE_GSSAPI
323 | CURL_VERSION_GSSAPI
324#endif
325#ifdef USE_WINDOWS_SSPI
326 | CURL_VERSION_SSPI
327#endif
328#ifdef HAVE_LIBZ
329 | CURL_VERSION_LIBZ
330#endif
331#ifdef DEBUGBUILD
332 | CURL_VERSION_DEBUG
333#endif
334#ifdef CURLDEBUG
335 | CURL_VERSION_CURLDEBUG
336#endif
337#ifdef CURLRES_ASYNCH
338 | CURL_VERSION_ASYNCHDNS
339#endif
340#if (CURL_SIZEOF_CURL_OFF_T > 4) && \
341 ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
342 | CURL_VERSION_LARGEFILE
343#endif
344#if defined(CURL_DOES_CONVERSIONS)
345 | CURL_VERSION_CONV
346#endif
347#if defined(USE_TLS_SRP)
348 | CURL_VERSION_TLSAUTH_SRP
349#endif
350#if defined(USE_NGHTTP2)
351 | CURL_VERSION_HTTP2
352#endif
353#if defined(USE_UNIX_SOCKETS)
354 | CURL_VERSION_UNIX_SOCKETS
355#endif
356#if defined(USE_LIBPSL)
357 | CURL_VERSION_PSL
358#endif
359#if defined(CURL_WITH_MULTI_SSL)
360 | CURL_VERSION_MULTI_SSL
361#endif
362#if defined(HAVE_BROTLI)
363 | CURL_VERSION_BROTLI
364#endif
365 ,
366 NULL, /* ssl_version */
367 0, /* ssl_version_num, this is kept at zero */
368 NULL, /* zlib_version */
369 protocols,
370 NULL, /* c-ares version */
371 0, /* c-ares version numerical */
372 NULL, /* libidn version */
373 0, /* iconv version */
374 NULL, /* ssh lib version */
375 0, /* brotli_ver_num */
376 NULL, /* brotli version */
377};
378
379curl_version_info_data *curl_version_info(CURLversion stamp)
380{
381 static bool initialized;
382#ifdef USE_LIBSSH2
383 static char ssh_buffer[80];
384#endif
385#ifdef USE_SSL
386 static char ssl_buffer[80];
387#endif
388#ifdef HAVE_BROTLI
389 static char brotli_buffer[80];
390#endif
391
392 if(initialized)
393 return &version_info;
394
395#ifdef USE_SSL
396 Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
397 version_info.ssl_version = ssl_buffer;
398 if(Curl_ssl->support_https_proxy)
399 version_info.features |= CURL_VERSION_HTTPS_PROXY;
400 else
401 version_info.features &= ~CURL_VERSION_HTTPS_PROXY;
402#endif
403
404#ifdef HAVE_LIBZ
405 version_info.libz_version = zlibVersion();
406 /* libz left NULL if non-existing */
407#endif
408#ifdef USE_ARES
409 {
410 int aresnum;
411 version_info.ares = ares_version(&aresnum);
412 version_info.ares_num = aresnum;
413 }
414#endif
415#ifdef USE_LIBIDN2
416 /* This returns a version string if we use the given version or later,
417 otherwise it returns NULL */
418 version_info.libidn = idn2_check_version(IDN2_VERSION);
419 if(version_info.libidn)
420 version_info.features |= CURL_VERSION_IDN;
421#elif defined(USE_WIN32_IDN)
422 version_info.features |= CURL_VERSION_IDN;
423#endif
424
425#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
426#ifdef _LIBICONV_VERSION
427 version_info.iconv_ver_num = _LIBICONV_VERSION;
428#else
429 /* version unknown */
430 version_info.iconv_ver_num = -1;
431#endif /* _LIBICONV_VERSION */
432#endif
433
434#ifdef USE_LIBSSH2
435 snprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
436 version_info.libssh_version = ssh_buffer;
437#endif
438
439#ifdef HAVE_BROTLI
440 version_info.brotli_ver_num = BrotliDecoderVersion();
441 brotli_version(brotli_buffer, sizeof brotli_buffer);
442 version_info.brotli_version = brotli_buffer;
443#endif
444
445 (void)stamp; /* avoid compiler warnings, we don't use this */
446
447 initialized = true;
448 return &version_info;
449}
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