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1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2012, 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 "sslgen.h"
28
29 #define _MPRINTF_REPLACE /* use the internal *printf() functions */
30 #include <curl/mprintf.h>
31
32 #ifdef USE_ARES
33 #  if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
34      (defined(WIN32) || defined(_WIN32) || defined(__SYMBIAN32__))
35 #    define CARES_STATICLIB
36 #  endif
37 #  include <ares.h>
38 #endif
39
40 #ifdef USE_LIBIDN
41 #include <stringprep.h>
42 #endif
43
44 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
45 #include <iconv.h>
46 #endif
47
48 #ifdef USE_LIBRTMP
49 #include <librtmp/rtmp.h>
50 #endif
51
52 #ifdef USE_LIBSSH2
53 #include <libssh2.h>
54 #endif
55
56 #ifdef HAVE_LIBSSH2_VERSION
57 /* get it run-time if possible */
58 #define CURL_LIBSSH2_VERSION libssh2_version(0)
59 #else
60 /* use build-time if run-time not possible */
61 #define CURL_LIBSSH2_VERSION LIBSSH2_VERSION
62 #endif
63
64 char *curl_version(void)
65 {
66   static char version[200];
67   char *ptr = version;
68   size_t len;
69   size_t left = sizeof(version);
70
71   strcpy(ptr, LIBCURL_NAME "/" LIBCURL_VERSION);
72   len = strlen(ptr);
73   left -= len;
74   ptr += len;
75
76   if(left > 1) {
77     len = Curl_ssl_version(ptr + 1, left - 1);
78
79     if(len > 0) {
80       *ptr = ' ';
81       left -= ++len;
82       ptr += len;
83     }
84   }
85
86 #ifdef HAVE_LIBZ
87   len = snprintf(ptr, left, " zlib/%s", zlibVersion());
88   left -= len;
89   ptr += len;
90 #endif
91 #ifdef USE_ARES
92   /* this function is only present in c-ares, not in the original ares */
93   len = snprintf(ptr, left, " c-ares/%s", ares_version(NULL));
94   left -= len;
95   ptr += len;
96 #endif
97 #ifdef USE_LIBIDN
98   if(stringprep_check_version(LIBIDN_REQUIRED_VERSION)) {
99     len = snprintf(ptr, left, " libidn/%s", stringprep_check_version(NULL));
100     left -= len;
101     ptr += len;
102   }
103 #endif
104 #ifdef USE_WIN32_IDN
105   len = snprintf(ptr, left, " WinIDN");
106   left -= len;
107   ptr += len;
108 #endif
109 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
110 #ifdef _LIBICONV_VERSION
111   len = snprintf(ptr, left, " iconv/%d.%d",
112                  _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
113 #else
114   /* version unknown */
115   len = snprintf(ptr, left, " iconv");
116 #endif /* _LIBICONV_VERSION */
117   left -= len;
118   ptr += len;
119 #endif
120 #ifdef USE_LIBSSH2
121   len = snprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
122   left -= len;
123   ptr += len;
124 #endif
125 #ifdef USE_LIBRTMP
126   {
127     char suff[2];
128     if(RTMP_LIB_VERSION & 0xff) {
129       suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
130       suff[1] = '\0';
131     }
132     else
133       suff[0] = '\0';
134
135     snprintf(ptr, left, " librtmp/%d.%d%s",
136              RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
137              suff);
138 /*
139   If another lib version is added below this one, this code would
140   also have to do:
141
142     len = what snprintf() returned
143
144     left -= len;
145     ptr += len;
146 */
147   }
148 #endif
149
150   return version;
151 }
152
153 /* data for curl_version_info
154
155    Keep the list sorted alphabetically. It is also written so that each
156    protocol line has its own #if line to make things easier on the eye.
157  */
158
159 static const char * const protocols[] = {
160 #ifndef CURL_DISABLE_DICT
161   "dict",
162 #endif
163 #ifndef CURL_DISABLE_FILE
164   "file",
165 #endif
166 #ifndef CURL_DISABLE_FTP
167   "ftp",
168 #endif
169 #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
170   "ftps",
171 #endif
172 #ifndef CURL_DISABLE_GOPHER
173   "gopher",
174 #endif
175 #ifndef CURL_DISABLE_HTTP
176   "http",
177 #endif
178 #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
179   "https",
180 #endif
181 #ifndef CURL_DISABLE_IMAP
182   "imap",
183 #endif
184 #if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
185   "imaps",
186 #endif
187 #ifndef CURL_DISABLE_LDAP
188   "ldap",
189 #if !defined(CURL_DISABLE_LDAPS) && \
190     ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
191      (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
192   "ldaps",
193 #endif
194 #endif
195 #ifndef CURL_DISABLE_POP3
196   "pop3",
197 #endif
198 #if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
199   "pop3s",
200 #endif
201 #ifdef USE_LIBRTMP
202   "rtmp",
203 #endif
204 #ifndef CURL_DISABLE_RTSP
205   "rtsp",
206 #endif
207 #ifdef USE_LIBSSH2
208   "scp",
209 #endif
210 #ifdef USE_LIBSSH2
211   "sftp",
212 #endif
213 #ifndef CURL_DISABLE_SMTP
214   "smtp",
215 #endif
216 #if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
217   "smtps",
218 #endif
219 #ifndef CURL_DISABLE_TELNET
220   "telnet",
221 #endif
222 #ifndef CURL_DISABLE_TFTP
223   "tftp",
224 #endif
225
226   NULL
227 };
228
229 static curl_version_info_data version_info = {
230   CURLVERSION_NOW,
231   LIBCURL_VERSION,
232   LIBCURL_VERSION_NUM,
233   OS, /* as found by configure or set by hand at build-time */
234   0 /* features is 0 by default */
235 #ifdef ENABLE_IPV6
236   | CURL_VERSION_IPV6
237 #endif
238 #ifdef HAVE_KRB4
239   | CURL_VERSION_KERBEROS4
240 #endif
241 #ifdef USE_SSL
242   | CURL_VERSION_SSL
243 #endif
244 #ifdef USE_NTLM
245   | CURL_VERSION_NTLM
246 #endif
247 #if defined(USE_NTLM) && defined(NTLM_WB_ENABLED)
248   | CURL_VERSION_NTLM_WB
249 #endif
250 #ifdef USE_WINDOWS_SSPI
251   | CURL_VERSION_SSPI
252 #endif
253 #ifdef HAVE_LIBZ
254   | CURL_VERSION_LIBZ
255 #endif
256 #ifdef USE_HTTP_NEGOTIATE
257   | CURL_VERSION_GSSNEGOTIATE
258 #endif
259 #ifdef DEBUGBUILD
260   | CURL_VERSION_DEBUG
261 #endif
262 #ifdef CURLDEBUG
263   | CURL_VERSION_CURLDEBUG
264 #endif
265 #ifdef CURLRES_ASYNCH
266   | CURL_VERSION_ASYNCHDNS
267 #endif
268 #ifdef HAVE_SPNEGO
269   | CURL_VERSION_SPNEGO
270 #endif
271 #if (CURL_SIZEOF_CURL_OFF_T > 4) && \
272     ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
273   | CURL_VERSION_LARGEFILE
274 #endif
275 #if defined(CURL_DOES_CONVERSIONS)
276   | CURL_VERSION_CONV
277 #endif
278 #if defined(USE_TLS_SRP)
279   | CURL_VERSION_TLSAUTH_SRP
280 #endif
281   ,
282   NULL, /* ssl_version */
283   0,    /* ssl_version_num, this is kept at zero */
284   NULL, /* zlib_version */
285   protocols,
286   NULL, /* c-ares version */
287   0,    /* c-ares version numerical */
288   NULL, /* libidn version */
289   0,    /* iconv version */
290   NULL, /* ssh lib version */
291 };
292
293 curl_version_info_data *curl_version_info(CURLversion stamp)
294 {
295 #ifdef USE_LIBSSH2
296   static char ssh_buffer[80];
297 #endif
298
299 #ifdef USE_SSL
300   static char ssl_buffer[80];
301   Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
302   version_info.ssl_version = ssl_buffer;
303 #endif
304
305 #ifdef HAVE_LIBZ
306   version_info.libz_version = zlibVersion();
307   /* libz left NULL if non-existing */
308 #endif
309 #ifdef USE_ARES
310   {
311     int aresnum;
312     version_info.ares = ares_version(&aresnum);
313     version_info.ares_num = aresnum;
314   }
315 #endif
316 #ifdef USE_LIBIDN
317   /* This returns a version string if we use the given version or later,
318      otherwise it returns NULL */
319   version_info.libidn = stringprep_check_version(LIBIDN_REQUIRED_VERSION);
320   if(version_info.libidn)
321     version_info.features |= CURL_VERSION_IDN;
322 #elif defined(USE_WIN32_IDN)
323   version_info.features |= CURL_VERSION_IDN;
324 #endif
325
326 #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
327 #ifdef _LIBICONV_VERSION
328   version_info.iconv_ver_num = _LIBICONV_VERSION;
329 #else
330   /* version unknown */
331   version_info.iconv_ver_num = -1;
332 #endif /* _LIBICONV_VERSION */
333 #endif
334
335 #ifdef USE_LIBSSH2
336   snprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
337   version_info.libssh_version = ssh_buffer;
338 #endif
339
340   (void)stamp; /* avoid compiler warnings, we don't use this */
341
342   return &version_info;
343 }