1/***************************************************************************
2 *                                  _   _ ____  _
3 *  Project                     ___| | | |  _ \| |
4 *                             / __| | | | |_) | |
5 *                            | (__| |_| |  _ <| |___
6 *                             \___|\___/|_| \_\_____|
7 *
8 * Copyright (C) 1998 - 2013, 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 http://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
30#define _MPRINTF_REPLACE /* use the internal *printf() functions */
31#include <curl/mprintf.h>
32
33#ifdef USE_ARES
34#  if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
35     (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
36#    define CARES_STATICLIB
37#  endif
38#  include <ares.h>
39#endif
40
41#ifdef USE_LIBIDN
42#include <stringprep.h>
43#endif
44
45#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
46#include <iconv.h>
47#endif
48
49#ifdef USE_LIBRTMP
50#include <librtmp/rtmp.h>
51#endif
52
53#ifdef USE_LIBSSH2
54#include <libssh2.h>
55#endif
56
57#ifdef HAVE_LIBSSH2_VERSION
58/* get it run-time if possible */
59#define CURL_LIBSSH2_VERSION libssh2_version(0)
60#else
61/* use build-time if run-time not possible */
62#define CURL_LIBSSH2_VERSION LIBSSH2_VERSION
63#endif
64
65char *curl_version(void)
66{
67  static char version[200];
68  char *ptr = version;
69  size_t len;
70  size_t left = sizeof(version);
71
72  strcpy(ptr, LIBCURL_NAME "/" LIBCURL_VERSION);
73  len = strlen(ptr);
74  left -= len;
75  ptr += len;
76
77  if(left > 1) {
78    len = Curl_ssl_version(ptr + 1, left - 1);
79
80    if(len > 0) {
81      *ptr = ' ';
82      left -= ++len;
83      ptr += len;
84    }
85  }
86
87#ifdef HAVE_LIBZ
88  len = snprintf(ptr, left, " zlib/%s", zlibVersion());
89  left -= len;
90  ptr += len;
91#endif
92#ifdef USE_ARES
93  /* this function is only present in c-ares, not in the original ares */
94  len = snprintf(ptr, left, " c-ares/%s", ares_version(NULL));
95  left -= len;
96  ptr += len;
97#endif
98#ifdef USE_LIBIDN
99  if(stringprep_check_version(LIBIDN_REQUIRED_VERSION)) {
100    len = snprintf(ptr, left, " libidn/%s", stringprep_check_version(NULL));
101    left -= len;
102    ptr += len;
103  }
104#endif
105#ifdef USE_WIN32_IDN
106  len = snprintf(ptr, left, " WinIDN");
107  left -= len;
108  ptr += len;
109#endif
110#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
111#ifdef _LIBICONV_VERSION
112  len = snprintf(ptr, left, " iconv/%d.%d",
113                 _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
114#else
115  /* version unknown */
116  len = snprintf(ptr, left, " iconv");
117#endif /* _LIBICONV_VERSION */
118  left -= len;
119  ptr += len;
120#endif
121#ifdef USE_LIBSSH2
122  len = snprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
123  left -= len;
124  ptr += len;
125#endif
126#ifdef USE_NGHTTP2
127  len = Curl_http2_ver(ptr, left);
128  left -= len;
129  ptr += len;
130#endif
131#ifdef USE_LIBRTMP
132  {
133    char suff[2];
134    if(RTMP_LIB_VERSION & 0xff) {
135      suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
136      suff[1] = '\0';
137    }
138    else
139      suff[0] = '\0';
140
141    snprintf(ptr, left, " librtmp/%d.%d%s",
142             RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
143             suff);
144/*
145  If another lib version is added below this one, this code would
146  also have to do:
147
148    len = what snprintf() returned
149
150    left -= len;
151    ptr += len;
152*/
153  }
154#endif
155
156  return version;
157}
158
159/* data for curl_version_info
160
161   Keep the list sorted alphabetically. It is also written so that each
162   protocol line has its own #if line to make things easier on the eye.
163 */
164
165static const char * const protocols[] = {
166#ifndef CURL_DISABLE_DICT
167  "dict",
168#endif
169#ifndef CURL_DISABLE_FILE
170  "file",
171#endif
172#ifndef CURL_DISABLE_FTP
173  "ftp",
174#endif
175#if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
176  "ftps",
177#endif
178#ifndef CURL_DISABLE_GOPHER
179  "gopher",
180#endif
181#ifndef CURL_DISABLE_HTTP
182  "http",
183#endif
184#if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
185  "https",
186#endif
187#ifndef CURL_DISABLE_IMAP
188  "imap",
189#endif
190#if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
191  "imaps",
192#endif
193#ifndef CURL_DISABLE_LDAP
194  "ldap",
195#if !defined(CURL_DISABLE_LDAPS) && \
196    ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
197     (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
198  "ldaps",
199#endif
200#endif
201#ifndef CURL_DISABLE_POP3
202  "pop3",
203#endif
204#if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
205  "pop3s",
206#endif
207#ifdef USE_LIBRTMP
208  "rtmp",
209#endif
210#ifndef CURL_DISABLE_RTSP
211  "rtsp",
212#endif
213#ifdef USE_LIBSSH2
214  "scp",
215#endif
216#ifdef USE_LIBSSH2
217  "sftp",
218#endif
219#ifndef CURL_DISABLE_SMTP
220  "smtp",
221#endif
222#if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
223  "smtps",
224#endif
225#ifndef CURL_DISABLE_TELNET
226  "telnet",
227#endif
228#ifndef CURL_DISABLE_TFTP
229  "tftp",
230#endif
231
232  NULL
233};
234
235static curl_version_info_data version_info = {
236  CURLVERSION_NOW,
237  LIBCURL_VERSION,
238  LIBCURL_VERSION_NUM,
239  OS, /* as found by configure or set by hand at build-time */
240  0 /* features is 0 by default */
241#ifdef ENABLE_IPV6
242  | CURL_VERSION_IPV6
243#endif
244#ifdef USE_SSL
245  | CURL_VERSION_SSL
246#endif
247#ifdef USE_NTLM
248  | CURL_VERSION_NTLM
249#endif
250#if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
251  | CURL_VERSION_NTLM_WB
252#endif
253#ifdef USE_WINDOWS_SSPI
254  | CURL_VERSION_SSPI
255#endif
256#ifdef HAVE_LIBZ
257  | CURL_VERSION_LIBZ
258#endif
259#ifdef USE_HTTP_NEGOTIATE
260  | CURL_VERSION_GSSNEGOTIATE
261#endif
262#ifdef DEBUGBUILD
263  | CURL_VERSION_DEBUG
264#endif
265#ifdef CURLDEBUG
266  | CURL_VERSION_CURLDEBUG
267#endif
268#ifdef CURLRES_ASYNCH
269  | CURL_VERSION_ASYNCHDNS
270#endif
271#ifdef HAVE_SPNEGO
272  | CURL_VERSION_SPNEGO
273#endif
274#if (CURL_SIZEOF_CURL_OFF_T > 4) && \
275    ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
276  | CURL_VERSION_LARGEFILE
277#endif
278#if defined(CURL_DOES_CONVERSIONS)
279  | CURL_VERSION_CONV
280#endif
281#if defined(USE_TLS_SRP)
282  | CURL_VERSION_TLSAUTH_SRP
283#endif
284#if defined(USE_NGHTTP2)
285  | CURL_VERSION_HTTP2
286#endif
287  ,
288  NULL, /* ssl_version */
289  0,    /* ssl_version_num, this is kept at zero */
290  NULL, /* zlib_version */
291  protocols,
292  NULL, /* c-ares version */
293  0,    /* c-ares version numerical */
294  NULL, /* libidn version */
295  0,    /* iconv version */
296  NULL, /* ssh lib version */
297};
298
299curl_version_info_data *curl_version_info(CURLversion stamp)
300{
301#ifdef USE_LIBSSH2
302  static char ssh_buffer[80];
303#endif
304
305#ifdef USE_SSL
306  static char ssl_buffer[80];
307  Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
308  version_info.ssl_version = ssl_buffer;
309#endif
310
311#ifdef HAVE_LIBZ
312  version_info.libz_version = zlibVersion();
313  /* libz left NULL if non-existing */
314#endif
315#ifdef USE_ARES
316  {
317    int aresnum;
318    version_info.ares = ares_version(&aresnum);
319    version_info.ares_num = aresnum;
320  }
321#endif
322#ifdef USE_LIBIDN
323  /* This returns a version string if we use the given version or later,
324     otherwise it returns NULL */
325  version_info.libidn = stringprep_check_version(LIBIDN_REQUIRED_VERSION);
326  if(version_info.libidn)
327    version_info.features |= CURL_VERSION_IDN;
328#elif defined(USE_WIN32_IDN)
329  version_info.features |= CURL_VERSION_IDN;
330#endif
331
332#if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
333#ifdef _LIBICONV_VERSION
334  version_info.iconv_ver_num = _LIBICONV_VERSION;
335#else
336  /* version unknown */
337  version_info.iconv_ver_num = -1;
338#endif /* _LIBICONV_VERSION */
339#endif
340
341#ifdef USE_LIBSSH2
342  snprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
343  version_info.libssh_version = ssh_buffer;
344#endif
345
346  (void)stamp; /* avoid compiler warnings, we don't use this */
347
348  return &version_info;
349}
350