/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 1998 - 2020, Daniel Stenberg, , et al. * * This software is licensed as described in the file COPYING, which * you should have received as part of this distribution. The terms * are also available at https://curl.se/docs/copyright.html. * * You may opt to use, copy, modify, merge, publish, distribute and/or sell * copies of the Software, and permit persons to whom the Software is * furnished to do so, under the terms of the COPYING file. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ***************************************************************************/ #include "curl_setup.h" #include #include "urldata.h" #include "vtls/vtls.h" #include "http2.h" #include "vssh/ssh.h" #include "quic.h" #include "curl_printf.h" #ifdef USE_ARES # if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \ defined(WIN32) # define CARES_STATICLIB # endif # include #endif #ifdef USE_LIBIDN2 #include #endif #ifdef USE_LIBPSL #include #endif #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS) #include #endif #ifdef USE_LIBRTMP #include #endif #ifdef HAVE_ZLIB_H #include #endif #ifdef HAVE_BROTLI #include #endif #ifdef HAVE_ZSTD #include #endif #ifdef HAVE_BROTLI static size_t brotli_version(char *buf, size_t bufsz) { uint32_t brotli_version = BrotliDecoderVersion(); unsigned int major = brotli_version >> 24; unsigned int minor = (brotli_version & 0x00FFFFFF) >> 12; unsigned int patch = brotli_version & 0x00000FFF; return msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch); } #endif #ifdef HAVE_ZSTD static size_t zstd_version(char *buf, size_t bufsz) { unsigned long zstd_version = (unsigned long)ZSTD_versionNumber(); unsigned int major = (unsigned int)(zstd_version / (100 * 100)); unsigned int minor = (unsigned int)((zstd_version - (major * 100 * 100)) / 100); unsigned int patch = (unsigned int)(zstd_version - (major * 100 * 100) - (minor * 100)); return msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch); } #endif /* * curl_version() returns a pointer to a static buffer. * * It is implemented to work multi-threaded by making sure repeated invokes * generate the exact same string and never write any temporary data like * zeros in the data. */ #define VERSION_PARTS 14 /* number of substrings we can concatenate */ char *curl_version(void) { static char out[300]; char *outp; size_t outlen; const char *src[VERSION_PARTS]; #ifdef USE_SSL char ssl_version[200]; #endif #ifdef HAVE_LIBZ char z_version[40]; #endif #ifdef HAVE_BROTLI char br_version[40] = "brotli/"; #endif #ifdef HAVE_ZSTD char zst_version[40] = "zstd/"; #endif #ifdef USE_ARES char cares_version[40]; #endif #if defined(USE_LIBIDN2) char idn_version[40]; #endif #ifdef USE_LIBPSL char psl_version[40]; #endif #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS) char iconv_version[40]="iconv"; #endif #ifdef USE_SSH char ssh_version[40]; #endif #ifdef USE_NGHTTP2 char h2_version[40]; #endif #ifdef ENABLE_QUIC char h3_version[40]; #endif #ifdef USE_LIBRTMP char rtmp_version[40]; #endif int i = 0; int j; #ifdef DEBUGBUILD /* Override version string when environment variable CURL_VERSION is set */ const char *debugversion = getenv("CURL_VERSION"); if(debugversion) { strncpy(out, debugversion, sizeof(out)-1); out[sizeof(out)-1] = '\0'; return out; } #endif src[i++] = LIBCURL_NAME "/" LIBCURL_VERSION; #ifdef USE_SSL Curl_ssl_version(ssl_version, sizeof(ssl_version)); src[i++] = ssl_version; #endif #ifdef HAVE_LIBZ msnprintf(z_version, sizeof(z_version), "zlib/%s", zlibVersion()); src[i++] = z_version; #endif #ifdef HAVE_BROTLI brotli_version(&br_version[7], sizeof(br_version) - 7); src[i++] = br_version; #endif #ifdef HAVE_ZSTD zstd_version(&zst_version[5], sizeof(zst_version) - 5); src[i++] = zst_version; #endif #ifdef USE_ARES msnprintf(cares_version, sizeof(cares_version), "c-ares/%s", ares_version(NULL)); src[i++] = cares_version; #endif #ifdef USE_LIBIDN2 msnprintf(idn_version, sizeof(idn_version), "libidn2/%s", idn2_check_version(NULL)); src[i++] = idn_version; #elif defined(USE_WIN32_IDN) src[i++] = (char *)"WinIDN"; #endif #ifdef USE_LIBPSL msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version()); src[i++] = psl_version; #endif #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS) #ifdef _LIBICONV_VERSION msnprintf(iconv_version, sizeof(iconv_version), "iconv/%d.%d", _LIBICONV_VERSION >> 8, _LIBICONV_VERSION & 255); #else /* version unknown, let the default stand */ #endif /* _LIBICONV_VERSION */ src[i++] = iconv_version; #endif #ifdef USE_SSH Curl_ssh_version(ssh_version, sizeof(ssh_version)); src[i++] = ssh_version; #endif #ifdef USE_NGHTTP2 Curl_http2_ver(h2_version, sizeof(h2_version)); src[i++] = h2_version; #endif #ifdef ENABLE_QUIC Curl_quic_ver(h3_version, sizeof(h3_version)); src[i++] = h3_version; #endif #ifdef USE_LIBRTMP { char suff[2]; if(RTMP_LIB_VERSION & 0xff) { suff[0] = (RTMP_LIB_VERSION & 0xff) + 'a' - 1; suff[1] = '\0'; } else suff[0] = '\0'; msnprintf(rtmp_version, sizeof(rtmp_version), "librtmp/%d.%d%s", RTMP_LIB_VERSION >> 16, (RTMP_LIB_VERSION >> 8) & 0xff, suff); src[i++] = rtmp_version; } #endif DEBUGASSERT(i <= VERSION_PARTS); outp = &out[0]; outlen = sizeof(out); for(j = 0; j < i; j++) { size_t n = strlen(src[j]); /* we need room for a space, the string and the final zero */ if(outlen <= (n + 2)) break; if(j) { /* prepend a space if not the first */ *outp++ = ' '; outlen--; } memcpy(outp, src[j], n); outp += n; outlen -= n; } *outp = 0; return out; } /* data for curl_version_info Keep the list sorted alphabetically. It is also written so that each protocol line has its own #if line to make things easier on the eye. */ static const char * const protocols[] = { #ifndef CURL_DISABLE_DICT "dict", #endif #ifndef CURL_DISABLE_FILE "file", #endif #ifndef CURL_DISABLE_FTP "ftp", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_FTP) "ftps", #endif #ifndef CURL_DISABLE_GOPHER "gopher", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_GOPHER) "gophers", #endif #ifndef CURL_DISABLE_HTTP "http", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_HTTP) "https", #endif #ifndef CURL_DISABLE_IMAP "imap", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_IMAP) "imaps", #endif #ifndef CURL_DISABLE_LDAP "ldap", #if !defined(CURL_DISABLE_LDAPS) && \ ((defined(USE_OPENLDAP) && defined(USE_SSL)) || \ (!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL))) "ldaps", #endif #endif #ifndef CURL_DISABLE_MQTT "mqtt", #endif #ifndef CURL_DISABLE_POP3 "pop3", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_POP3) "pop3s", #endif #ifdef USE_LIBRTMP "rtmp", #endif #ifndef CURL_DISABLE_RTSP "rtsp", #endif #if defined(USE_SSH) && !defined(USE_WOLFSSH) "scp", #endif #ifdef USE_SSH "sftp", #endif #if !defined(CURL_DISABLE_SMB) && defined(USE_CURL_NTLM_CORE) && \ (CURL_SIZEOF_CURL_OFF_T > 4) "smb", # ifdef USE_SSL "smbs", # endif #endif #ifndef CURL_DISABLE_SMTP "smtp", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_SMTP) "smtps", #endif #ifndef CURL_DISABLE_TELNET "telnet", #endif #ifndef CURL_DISABLE_TFTP "tftp", #endif NULL }; static curl_version_info_data version_info = { CURLVERSION_NOW, LIBCURL_VERSION, LIBCURL_VERSION_NUM, OS, /* as found by configure or set by hand at build-time */ 0 /* features is 0 by default */ #ifdef ENABLE_IPV6 | CURL_VERSION_IPV6 #endif #ifdef USE_SSL | CURL_VERSION_SSL #endif #ifdef USE_NTLM | CURL_VERSION_NTLM #endif #if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \ defined(NTLM_WB_ENABLED) | CURL_VERSION_NTLM_WB #endif #ifdef USE_SPNEGO | CURL_VERSION_SPNEGO #endif #ifdef USE_KERBEROS5 | CURL_VERSION_KERBEROS5 #endif #ifdef HAVE_GSSAPI | CURL_VERSION_GSSAPI #endif #ifdef USE_WINDOWS_SSPI | CURL_VERSION_SSPI #endif #ifdef HAVE_LIBZ | CURL_VERSION_LIBZ #endif #ifdef DEBUGBUILD | CURL_VERSION_DEBUG #endif #ifdef CURLDEBUG | CURL_VERSION_CURLDEBUG #endif #ifdef CURLRES_ASYNCH | CURL_VERSION_ASYNCHDNS #endif #if (CURL_SIZEOF_CURL_OFF_T > 4) && \ ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) ) | CURL_VERSION_LARGEFILE #endif #if defined(WIN32) && defined(UNICODE) && defined(_UNICODE) | CURL_VERSION_UNICODE #endif #if defined(CURL_DOES_CONVERSIONS) | CURL_VERSION_CONV #endif #if defined(USE_TLS_SRP) | CURL_VERSION_TLSAUTH_SRP #endif #if defined(USE_NGHTTP2) | CURL_VERSION_HTTP2 #endif #if defined(ENABLE_QUIC) | CURL_VERSION_HTTP3 #endif #if defined(USE_UNIX_SOCKETS) | CURL_VERSION_UNIX_SOCKETS #endif #if defined(USE_LIBPSL) | CURL_VERSION_PSL #endif #if defined(CURL_WITH_MULTI_SSL) | CURL_VERSION_MULTI_SSL #endif #if defined(HAVE_BROTLI) | CURL_VERSION_BROTLI #endif #if defined(HAVE_ZSTD) | CURL_VERSION_ZSTD #endif #ifndef CURL_DISABLE_ALTSVC | CURL_VERSION_ALTSVC #endif #if defined(USE_HSTS) | CURL_VERSION_HSTS #endif , NULL, /* ssl_version */ 0, /* ssl_version_num, this is kept at zero */ NULL, /* zlib_version */ protocols, NULL, /* c-ares version */ 0, /* c-ares version numerical */ NULL, /* libidn version */ 0, /* iconv version */ NULL, /* ssh lib version */ 0, /* brotli_ver_num */ NULL, /* brotli version */ 0, /* nghttp2 version number */ NULL, /* nghttp2 version string */ NULL, /* quic library string */ #ifdef CURL_CA_BUNDLE CURL_CA_BUNDLE, /* cainfo */ #else NULL, #endif #ifdef CURL_CA_PATH CURL_CA_PATH, /* capath */ #else NULL, #endif 0, /* zstd_ver_num */ NULL /* zstd version */ }; curl_version_info_data *curl_version_info(CURLversion stamp) { #if defined(USE_SSH) static char ssh_buffer[80]; #endif #ifdef USE_SSL #ifdef CURL_WITH_MULTI_SSL static char ssl_buffer[200]; #else static char ssl_buffer[80]; #endif #endif #ifdef HAVE_BROTLI static char brotli_buffer[80]; #endif #ifdef HAVE_ZSTD static char zstd_buffer[80]; #endif #ifdef USE_SSL Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer)); version_info.ssl_version = ssl_buffer; #ifndef CURL_DISABLE_PROXY if(Curl_ssl->supports & SSLSUPP_HTTPS_PROXY) version_info.features |= CURL_VERSION_HTTPS_PROXY; else version_info.features &= ~CURL_VERSION_HTTPS_PROXY; #endif #endif #ifdef HAVE_LIBZ version_info.libz_version = zlibVersion(); /* libz left NULL if non-existing */ #endif #ifdef USE_ARES { int aresnum; version_info.ares = ares_version(&aresnum); version_info.ares_num = aresnum; } #endif #ifdef USE_LIBIDN2 /* This returns a version string if we use the given version or later, otherwise it returns NULL */ version_info.libidn = idn2_check_version(IDN2_VERSION); if(version_info.libidn) version_info.features |= CURL_VERSION_IDN; #elif defined(USE_WIN32_IDN) version_info.features |= CURL_VERSION_IDN; #endif #if defined(HAVE_ICONV) && defined(CURL_DOES_CONVERSIONS) #ifdef _LIBICONV_VERSION version_info.iconv_ver_num = _LIBICONV_VERSION; #else /* version unknown */ version_info.iconv_ver_num = -1; #endif /* _LIBICONV_VERSION */ #endif #if defined(USE_SSH) Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer)); version_info.libssh_version = ssh_buffer; #endif #ifdef HAVE_BROTLI version_info.brotli_ver_num = BrotliDecoderVersion(); brotli_version(brotli_buffer, sizeof(brotli_buffer)); version_info.brotli_version = brotli_buffer; #endif #ifdef HAVE_ZSTD version_info.zstd_ver_num = (unsigned int)ZSTD_versionNumber(); zstd_version(zstd_buffer, sizeof(zstd_buffer)); version_info.zstd_version = zstd_buffer; #endif #ifdef USE_NGHTTP2 { nghttp2_info *h2 = nghttp2_version(0); version_info.nghttp2_ver_num = h2->version_num; version_info.nghttp2_version = h2->version_str; } #endif #ifdef ENABLE_QUIC { static char quicbuffer[80]; Curl_quic_ver(quicbuffer, sizeof(quicbuffer)); version_info.quic_version = quicbuffer; } #endif (void)stamp; /* avoid compiler warnings, we don't use this */ return &version_info; }