Annotation of embedaddon/curl/lib/version.c, revision 1.1.1.1

1.1       misho       1: /***************************************************************************
                      2:  *                                  _   _ ____  _
                      3:  *  Project                     ___| | | |  _ \| |
                      4:  *                             / __| | | | |_) | |
                      5:  *                            | (__| |_| |  _ <| |___
                      6:  *                             \___|\___/|_| \_\_____|
                      7:  *
                      8:  * Copyright (C) 1998 - 2020, 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 "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) || defined(__SYMBIAN32__))
                     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: #ifdef __SYMBIAN32__
                     60: /* zlib pollutes the namespace with this definition */
                     61: #undef WIN32
                     62: #endif
                     63: #endif
                     64: 
                     65: #ifdef HAVE_BROTLI
                     66: #include <brotli/decode.h>
                     67: #endif
                     68: 
                     69: #ifdef HAVE_BROTLI
                     70: static size_t brotli_version(char *buf, size_t bufsz)
                     71: {
                     72:   uint32_t brotli_version = BrotliDecoderVersion();
                     73:   unsigned int major = brotli_version >> 24;
                     74:   unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12;
                     75:   unsigned int patch = brotli_version & 0x00000FFF;
                     76: 
                     77:   return msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch);
                     78: }
                     79: #endif
                     80: 
                     81: /*
                     82:  * curl_version() returns a pointer to a static buffer.
                     83:  *
                     84:  * It is implemented to work multi-threaded by making sure repeated invokes
                     85:  * generate the exact same string and never write any temporary data like
                     86:  * zeros in the data.
                     87:  */
                     88: 
                     89: #define VERSION_PARTS 14 /* number of substrings we can concatenate */
                     90: 
                     91: char *curl_version(void)
                     92: {
                     93:   static char out[300];
                     94:   char *outp;
                     95:   size_t outlen;
                     96:   const char *src[VERSION_PARTS];
                     97: #ifdef USE_SSL
                     98:   char ssl_version[200];
                     99: #endif
                    100: #ifdef HAVE_LIBZ
                    101:   char z_version[40];
                    102: #endif
                    103: #ifdef HAVE_BROTLI
                    104:   char br_version[40] = "brotli/";
                    105: #endif
                    106: #ifdef USE_ARES
                    107:   char cares_version[40];
                    108: #endif
                    109: #if defined(USE_LIBIDN2)
                    110:   char idn_version[40];
                    111: #endif
                    112: #ifdef USE_LIBPSL
                    113:   char psl_version[40];
                    114: #endif
                    115: #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
                    116:   char iconv_version[40]="iconv";
                    117: #endif
                    118: #ifdef USE_SSH
                    119:   char ssh_version[40];
                    120: #endif
                    121: #ifdef USE_NGHTTP2
                    122:   char h2_version[40];
                    123: #endif
                    124: #ifdef ENABLE_QUIC
                    125:   char h3_version[40];
                    126: #endif
                    127: #ifdef USE_LIBRTMP
                    128:   char rtmp_version[40];
                    129: #endif
                    130:   int i = 0;
                    131:   int j;
                    132: 
                    133: #ifdef DEBUGBUILD
                    134:   /* Override version string when environment variable CURL_VERSION is set */
                    135:   const char *debugversion = getenv("CURL_VERSION");
                    136:   if(debugversion) {
                    137:     strncpy(out, debugversion, sizeof(out)-1);
                    138:     out[sizeof(out)-1] = '\0';
                    139:     return out;
                    140:   }
                    141: #endif
                    142: 
                    143:   src[i++] = LIBCURL_NAME "/" LIBCURL_VERSION;
                    144: #ifdef USE_SSL
                    145:   Curl_ssl_version(ssl_version, sizeof(ssl_version));
                    146:   src[i++] = ssl_version;
                    147: #endif
                    148: #ifdef HAVE_LIBZ
                    149:   msnprintf(z_version, sizeof(z_version), "zlib/%s", zlibVersion());
                    150:   src[i++] = z_version;
                    151: #endif
                    152: #ifdef HAVE_BROTLI
                    153:   brotli_version(&br_version[7], sizeof(br_version) - 7);
                    154:   src[i++] = br_version;
                    155: #endif
                    156: #ifdef USE_ARES
                    157:   msnprintf(cares_version, sizeof(cares_version),
                    158:             "c-ares/%s", ares_version(NULL));
                    159:   src[i++] = cares_version;
                    160: #endif
                    161: #ifdef USE_LIBIDN2
                    162:   msnprintf(idn_version, sizeof(idn_version),
                    163:             "libidn2/%s", idn2_check_version(NULL));
                    164:   src[i++] = idn_version;
                    165: #elif defined(USE_WIN32_IDN)
                    166:   src[i++] = (char *)"WinIDN";
                    167: #endif
                    168: 
                    169: #ifdef USE_LIBPSL
                    170:   msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version());
                    171:   src[i++] = psl_version;
                    172: #endif
                    173: #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
                    174: #ifdef _LIBICONV_VERSION
                    175:   msnprintf(iconv_version, sizeof(iconv_version), "iconv/%d.%d",
                    176:             _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255);
                    177: #else
                    178:   /* version unknown, let the default stand */
                    179: #endif /* _LIBICONV_VERSION */
                    180:   src[i++] = iconv_version;
                    181: #endif
                    182: #ifdef USE_SSH
                    183:   Curl_ssh_version(ssh_version, sizeof(ssh_version));
                    184:   src[i++] = ssh_version;
                    185: #endif
                    186: #ifdef USE_NGHTTP2
                    187:   Curl_http2_ver(h2_version, sizeof(h2_version));
                    188:   src[i++] = h2_version;
                    189: #endif
                    190: #ifdef ENABLE_QUIC
                    191:   Curl_quic_ver(h3_version, sizeof(h3_version));
                    192:   src[i++] = h3_version;
                    193: #endif
                    194: #ifdef USE_LIBRTMP
                    195:   {
                    196:     char suff[2];
                    197:     if(RTMP_LIB_VERSION & 0xff) {
                    198:       suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1;
                    199:       suff[1] = '\0';
                    200:     }
                    201:     else
                    202:       suff[0] = '\0';
                    203: 
                    204:     msnprintf(rtmp_version, sizeof(rtmp_version), "librtmp/%d.%d%s",
                    205:               RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff,
                    206:               suff);
                    207:     src[i++] = rtmp_version;
                    208:   }
                    209: #endif
                    210: 
                    211:   DEBUGASSERT(i <= VERSION_PARTS);
                    212: 
                    213:   outp = &out[0];
                    214:   outlen = sizeof(out);
                    215:   for(j = 0; j < i; j++) {
                    216:     size_t n = strlen(src[j]);
                    217:     /* we need room for a space, the string and the final zero */
                    218:     if(outlen <= (n + 2))
                    219:       break;
                    220:     if(j) {
                    221:       /* prepend a space if not the first */
                    222:       *outp++ = ' ';
                    223:       outlen--;
                    224:     }
                    225:     memcpy(outp, src[j], n);
                    226:     outp += n;
                    227:     outlen -= n;
                    228:   }
                    229:   *outp = 0;
                    230: 
                    231:   return out;
                    232: }
                    233: 
                    234: /* data for curl_version_info
                    235: 
                    236:    Keep the list sorted alphabetically. It is also written so that each
                    237:    protocol line has its own #if line to make things easier on the eye.
                    238:  */
                    239: 
                    240: static const char * const protocols[] = {
                    241: #ifndef CURL_DISABLE_DICT
                    242:   "dict",
                    243: #endif
                    244: #ifndef CURL_DISABLE_FILE
                    245:   "file",
                    246: #endif
                    247: #ifndef CURL_DISABLE_FTP
                    248:   "ftp",
                    249: #endif
                    250: #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP)
                    251:   "ftps",
                    252: #endif
                    253: #ifndef CURL_DISABLE_GOPHER
                    254:   "gopher",
                    255: #endif
                    256: #ifndef CURL_DISABLE_HTTP
                    257:   "http",
                    258: #endif
                    259: #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP)
                    260:   "https",
                    261: #endif
                    262: #ifndef CURL_DISABLE_IMAP
                    263:   "imap",
                    264: #endif
                    265: #if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP)
                    266:   "imaps",
                    267: #endif
                    268: #ifndef CURL_DISABLE_LDAP
                    269:   "ldap",
                    270: #if !defined(CURL_DISABLE_LDAPS) && \
                    271:     ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
                    272:      (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
                    273:   "ldaps",
                    274: #endif
                    275: #endif
                    276: #ifdef CURL_ENABLE_MQTT
                    277:   "mqtt",
                    278: #endif
                    279: #ifndef CURL_DISABLE_POP3
                    280:   "pop3",
                    281: #endif
                    282: #if defined(USE_SSL) && !defined(CURL_DISABLE_POP3)
                    283:   "pop3s",
                    284: #endif
                    285: #ifdef USE_LIBRTMP
                    286:   "rtmp",
                    287: #endif
                    288: #ifndef CURL_DISABLE_RTSP
                    289:   "rtsp",
                    290: #endif
                    291: #if defined(USE_SSH) && !defined(USE_WOLFSSH)
                    292:   "scp",
                    293: #endif
                    294: #ifdef USE_SSH
                    295:   "sftp",
                    296: #endif
                    297: #if !defined(CURL_DISABLE_SMB) && defined(USE_NTLM) && \
                    298:    (CURL_SIZEOF_CURL_OFF_T > 4) && \
                    299:    (!defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO))
                    300:   "smb",
                    301: #  ifdef USE_SSL
                    302:   "smbs",
                    303: #  endif
                    304: #endif
                    305: #ifndef CURL_DISABLE_SMTP
                    306:   "smtp",
                    307: #endif
                    308: #if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP)
                    309:   "smtps",
                    310: #endif
                    311: #ifndef CURL_DISABLE_TELNET
                    312:   "telnet",
                    313: #endif
                    314: #ifndef CURL_DISABLE_TFTP
                    315:   "tftp",
                    316: #endif
                    317: 
                    318:   NULL
                    319: };
                    320: 
                    321: static curl_version_info_data version_info = {
                    322:   CURLVERSION_NOW,
                    323:   LIBCURL_VERSION,
                    324:   LIBCURL_VERSION_NUM,
                    325:   OS, /* as found by configure or set by hand at build-time */
                    326:   0 /* features is 0 by default */
                    327: #ifdef ENABLE_IPV6
                    328:   | CURL_VERSION_IPV6
                    329: #endif
                    330: #ifdef USE_SSL
                    331:   | CURL_VERSION_SSL
                    332: #endif
                    333: #ifdef USE_NTLM
                    334:   | CURL_VERSION_NTLM
                    335: #endif
                    336: #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
                    337:   defined(NTLM_WB_ENABLED)
                    338:   | CURL_VERSION_NTLM_WB
                    339: #endif
                    340: #ifdef USE_SPNEGO
                    341:   | CURL_VERSION_SPNEGO
                    342: #endif
                    343: #ifdef USE_KERBEROS5
                    344:   | CURL_VERSION_KERBEROS5
                    345: #endif
                    346: #ifdef HAVE_GSSAPI
                    347:   | CURL_VERSION_GSSAPI
                    348: #endif
                    349: #ifdef USE_WINDOWS_SSPI
                    350:   | CURL_VERSION_SSPI
                    351: #endif
                    352: #ifdef HAVE_LIBZ
                    353:   | CURL_VERSION_LIBZ
                    354: #endif
                    355: #ifdef DEBUGBUILD
                    356:   | CURL_VERSION_DEBUG
                    357: #endif
                    358: #ifdef CURLDEBUG
                    359:   | CURL_VERSION_CURLDEBUG
                    360: #endif
                    361: #ifdef CURLRES_ASYNCH
                    362:   | CURL_VERSION_ASYNCHDNS
                    363: #endif
                    364: #if (CURL_SIZEOF_CURL_OFF_T > 4) && \
                    365:     ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) )
                    366:   | CURL_VERSION_LARGEFILE
                    367: #endif
                    368: #if defined(CURL_DOES_CONVERSIONS)
                    369:   | CURL_VERSION_CONV
                    370: #endif
                    371: #if defined(USE_TLS_SRP)
                    372:   | CURL_VERSION_TLSAUTH_SRP
                    373: #endif
                    374: #if defined(USE_NGHTTP2)
                    375:   | CURL_VERSION_HTTP2
                    376: #endif
                    377: #if defined(ENABLE_QUIC)
                    378:   | CURL_VERSION_HTTP3
                    379: #endif
                    380: #if defined(USE_UNIX_SOCKETS)
                    381:   | CURL_VERSION_UNIX_SOCKETS
                    382: #endif
                    383: #if defined(USE_LIBPSL)
                    384:   | CURL_VERSION_PSL
                    385: #endif
                    386: #if defined(CURL_WITH_MULTI_SSL)
                    387:   | CURL_VERSION_MULTI_SSL
                    388: #endif
                    389: #if defined(HAVE_BROTLI)
                    390:   | CURL_VERSION_BROTLI
                    391: #endif
                    392: #if defined(USE_ALTSVC)
                    393:   | CURL_VERSION_ALTSVC
                    394: #endif
                    395:   ,
                    396:   NULL, /* ssl_version */
                    397:   0,    /* ssl_version_num, this is kept at zero */
                    398:   NULL, /* zlib_version */
                    399:   protocols,
                    400:   NULL, /* c-ares version */
                    401:   0,    /* c-ares version numerical */
                    402:   NULL, /* libidn version */
                    403:   0,    /* iconv version */
                    404:   NULL, /* ssh lib version */
                    405:   0,    /* brotli_ver_num */
                    406:   NULL, /* brotli version */
                    407:   0,    /* nghttp2 version number */
                    408:   NULL, /* nghttp2 version string */
                    409:   NULL, /* quic library string */
                    410: #ifdef CURL_CA_BUNDLE
                    411:   CURL_CA_BUNDLE, /* cainfo */
                    412: #else
                    413:   NULL,
                    414: #endif
                    415: #ifdef CURL_CA_PATH
                    416:   CURL_CA_PATH  /* capath */
                    417: #else
                    418:   NULL
                    419: #endif
                    420: };
                    421: 
                    422: curl_version_info_data *curl_version_info(CURLversion stamp)
                    423: {
                    424: #if defined(USE_SSH)
                    425:   static char ssh_buffer[80];
                    426: #endif
                    427: #ifdef USE_SSL
                    428: #ifdef CURL_WITH_MULTI_SSL
                    429:   static char ssl_buffer[200];
                    430: #else
                    431:   static char ssl_buffer[80];
                    432: #endif
                    433: #endif
                    434: #ifdef HAVE_BROTLI
                    435:   static char brotli_buffer[80];
                    436: #endif
                    437: 
                    438: #ifdef USE_SSL
                    439:   Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer));
                    440:   version_info.ssl_version = ssl_buffer;
                    441:   if(Curl_ssl->supports & SSLSUPP_HTTPS_PROXY)
                    442:     version_info.features |= CURL_VERSION_HTTPS_PROXY;
                    443:   else
                    444:     version_info.features &= ~CURL_VERSION_HTTPS_PROXY;
                    445: #endif
                    446: 
                    447: #ifdef HAVE_LIBZ
                    448:   version_info.libz_version = zlibVersion();
                    449:   /* libz left NULL if non-existing */
                    450: #endif
                    451: #ifdef USE_ARES
                    452:   {
                    453:     int aresnum;
                    454:     version_info.ares = ares_version(&aresnum);
                    455:     version_info.ares_num = aresnum;
                    456:   }
                    457: #endif
                    458: #ifdef USE_LIBIDN2
                    459:   /* This returns a version string if we use the given version or later,
                    460:      otherwise it returns NULL */
                    461:   version_info.libidn = idn2_check_version(IDN2_VERSION);
                    462:   if(version_info.libidn)
                    463:     version_info.features |= CURL_VERSION_IDN;
                    464: #elif defined(USE_WIN32_IDN)
                    465:   version_info.features |= CURL_VERSION_IDN;
                    466: #endif
                    467: 
                    468: #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS)
                    469: #ifdef _LIBICONV_VERSION
                    470:   version_info.iconv_ver_num = _LIBICONV_VERSION;
                    471: #else
                    472:   /* version unknown */
                    473:   version_info.iconv_ver_num = -1;
                    474: #endif /* _LIBICONV_VERSION */
                    475: #endif
                    476: 
                    477: #if defined(USE_SSH)
                    478:   Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer));
                    479:   version_info.libssh_version = ssh_buffer;
                    480: #endif
                    481: 
                    482: #ifdef HAVE_BROTLI
                    483:   version_info.brotli_ver_num = BrotliDecoderVersion();
                    484:   brotli_version(brotli_buffer, sizeof(brotli_buffer));
                    485:   version_info.brotli_version = brotli_buffer;
                    486: #endif
                    487: 
                    488: #ifdef USE_NGHTTP2
                    489:   {
                    490:     nghttp2_info *h2 = nghttp2_version(0);
                    491:     version_info.nghttp2_ver_num = h2->version_num;
                    492:     version_info.nghttp2_version = h2->version_str;
                    493:   }
                    494: #endif
                    495: 
                    496: #ifdef ENABLE_QUIC
                    497:   {
                    498:     static char quicbuffer[80];
                    499:     Curl_quic_ver(quicbuffer, sizeof(quicbuffer));
                    500:     version_info.quic_version = quicbuffer;
                    501:   }
                    502: #endif
                    503: 
                    504:   (void)stamp; /* avoid compiler warnings, we don't use this */
                    505:   return &version_info;
                    506: }

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