/*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * Copyright (C) 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. * * SPDX-License-Identifier: curl * ***************************************************************************/ #include "curl_setup.h" #ifdef USE_NGHTTP2 #include #endif #include #include "urldata.h" #include "vtls/vtls.h" #include "http2.h" #include "vssh/ssh.h" #include "vquic/vquic.h" #include "curl_printf.h" #include "easy_lock.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 #ifdef USE_LIBRTMP #include #include "curl_rtmp.h" #endif #ifdef HAVE_LIBZ #include #endif #ifdef HAVE_BROTLI #if defined(__GNUC__) /* Ignore -Wvla warnings in brotli headers */ #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wvla" #endif #include #if defined(__GNUC__) #pragma GCC diagnostic pop #endif #endif #ifdef HAVE_ZSTD #include #endif #ifdef USE_GSASL #include #endif #ifdef USE_OPENLDAP #include #endif #ifdef HAVE_BROTLI static void 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; (void)msnprintf(buf, bufsz, "%u.%u.%u", major, minor, patch); } #endif #ifdef HAVE_ZSTD static void 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)); (void)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 16 /* 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 #ifdef USE_SSH char ssh_version[40]; #endif #ifdef USE_NGHTTP2 char h2_version[40]; #endif #ifdef USE_HTTP3 char h3_version[40]; #endif #ifdef USE_LIBRTMP char rtmp_version[40]; #endif #ifdef USE_HYPER char hyper_buf[30]; #endif #ifdef USE_GSASL char gsasl_buf[30]; #endif #ifdef USE_OPENLDAP char ldap_buf[30]; #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) { msnprintf(out, sizeof(out), "%s", debugversion); 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"; #elif defined(USE_APPLE_IDN) src[i++] = (char *)"AppleIDN"; #endif #ifdef USE_LIBPSL { #if defined(PSL_VERSION_MAJOR) && (PSL_VERSION_MAJOR > 0 || \ PSL_VERSION_MINOR >= 11) int num = psl_check_version_number(0); msnprintf(psl_version, sizeof(psl_version), "libpsl/%d.%d.%d", num >> 16, (num >> 8) & 0xff, num & 0xff); #else msnprintf(psl_version, sizeof(psl_version), "libpsl/%s", psl_get_version()); #endif src[i++] = psl_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 USE_HTTP3 Curl_quic_ver(h3_version, sizeof(h3_version)); src[i++] = h3_version; #endif #ifdef USE_LIBRTMP Curl_rtmp_version(rtmp_version, sizeof(rtmp_version)); src[i++] = rtmp_version; #endif #ifdef USE_HYPER msnprintf(hyper_buf, sizeof(hyper_buf), "Hyper/%s", hyper_version()); src[i++] = hyper_buf; #endif #ifdef USE_GSASL msnprintf(gsasl_buf, sizeof(gsasl_buf), "libgsasl/%s", gsasl_check_version(NULL)); src[i++] = gsasl_buf; #endif #ifdef USE_OPENLDAP { LDAPAPIInfo api; api.ldapai_info_version = LDAP_API_INFO_VERSION; if(ldap_get_option(NULL, LDAP_OPT_API_INFO, &api) == LDAP_OPT_SUCCESS) { unsigned int patch = (unsigned int)(api.ldapai_vendor_version % 100); unsigned int major = (unsigned int)(api.ldapai_vendor_version / 10000); unsigned int minor = (((unsigned int)api.ldapai_vendor_version - major * 10000) - patch) / 100; msnprintf(ldap_buf, sizeof(ldap_buf), "%s/%u.%u.%u", api.ldapai_vendor_name, major, minor, patch); src[i++] = ldap_buf; ldap_memfree(api.ldapai_vendor_name); ber_memvfree((void **)api.ldapai_extensions); } } #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 supported_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", "rtmpe", "rtmps", "rtmpt", "rtmpte", "rtmpts", #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) "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 #ifndef CURL_DISABLE_HTTP /* WebSocket support relies on HTTP */ #ifndef CURL_DISABLE_WEBSOCKETS "ws", #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_WEBSOCKETS) "wss", #endif #endif NULL }; /* * Feature presence runtime check functions. * * Warning: the value returned by these should not change between * curl_global_init() and curl_global_cleanup() calls. */ #if defined(USE_LIBIDN2) static int idn_present(curl_version_info_data *info) { return info->libidn != NULL; } #else #define idn_present NULL #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_PROXY) && \ !defined(CURL_DISABLE_HTTP) static int https_proxy_present(curl_version_info_data *info) { (void) info; return Curl_ssl_supports(NULL, SSLSUPP_HTTPS_PROXY); } #endif #if defined(USE_SSL) && defined(USE_ECH) static int ech_present(curl_version_info_data *info) { (void) info; return Curl_ssl_supports(NULL, SSLSUPP_ECH); } #endif /* * Features table. * * Keep the features alphabetically sorted. * Use FEATURE() macro to define an entry: this allows documentation check. */ #define FEATURE(name, present, bitmask) {(name), (present), (bitmask)} struct feat { const char *name; int (*present)(curl_version_info_data *info); int bitmask; }; static const struct feat features_table[] = { #ifndef CURL_DISABLE_ALTSVC FEATURE("alt-svc", NULL, CURL_VERSION_ALTSVC), #endif #ifdef CURLRES_ASYNCH FEATURE("AsynchDNS", NULL, CURL_VERSION_ASYNCHDNS), #endif #ifdef HAVE_BROTLI FEATURE("brotli", NULL, CURL_VERSION_BROTLI), #endif #ifdef DEBUGBUILD FEATURE("Debug", NULL, CURL_VERSION_DEBUG), #endif #if defined(USE_SSL) && defined(USE_ECH) FEATURE("ECH", ech_present, 0), #endif #ifdef USE_GSASL FEATURE("gsasl", NULL, CURL_VERSION_GSASL), #endif #ifdef HAVE_GSSAPI FEATURE("GSS-API", NULL, CURL_VERSION_GSSAPI), #endif #ifndef CURL_DISABLE_HSTS FEATURE("HSTS", NULL, CURL_VERSION_HSTS), #endif #if defined(USE_NGHTTP2) FEATURE("HTTP2", NULL, CURL_VERSION_HTTP2), #endif #if defined(USE_HTTP3) FEATURE("HTTP3", NULL, CURL_VERSION_HTTP3), #endif #if defined(USE_SSL) && !defined(CURL_DISABLE_PROXY) && \ !defined(CURL_DISABLE_HTTP) FEATURE("HTTPS-proxy", https_proxy_present, CURL_VERSION_HTTPS_PROXY), #endif #if defined(USE_LIBIDN2) || defined(USE_WIN32_IDN) || defined(USE_APPLE_IDN) FEATURE("IDN", idn_present, CURL_VERSION_IDN), #endif #ifdef USE_IPV6 FEATURE("IPv6", NULL, CURL_VERSION_IPV6), #endif #ifdef USE_KERBEROS5 FEATURE("Kerberos", NULL, CURL_VERSION_KERBEROS5), #endif #if (SIZEOF_CURL_OFF_T > 4) && \ ( (SIZEOF_OFF_T > 4) || defined(USE_WIN32_LARGE_FILES) ) FEATURE("Largefile", NULL, CURL_VERSION_LARGEFILE), #endif #ifdef HAVE_LIBZ FEATURE("libz", NULL, CURL_VERSION_LIBZ), #endif #ifdef CURL_WITH_MULTI_SSL FEATURE("MultiSSL", NULL, CURL_VERSION_MULTI_SSL), #endif #ifdef USE_NTLM FEATURE("NTLM", NULL, CURL_VERSION_NTLM), #endif #if defined(USE_LIBPSL) FEATURE("PSL", NULL, CURL_VERSION_PSL), #endif #ifdef USE_SPNEGO FEATURE("SPNEGO", NULL, CURL_VERSION_SPNEGO), #endif #ifdef USE_SSL FEATURE("SSL", NULL, CURL_VERSION_SSL), #endif #ifdef USE_WINDOWS_SSPI FEATURE("SSPI", NULL, CURL_VERSION_SSPI), #endif #ifdef GLOBAL_INIT_IS_THREADSAFE FEATURE("threadsafe", NULL, CURL_VERSION_THREADSAFE), #endif #ifdef USE_TLS_SRP FEATURE("TLS-SRP", NULL, CURL_VERSION_TLSAUTH_SRP), #endif #ifdef CURLDEBUG FEATURE("TrackMemory", NULL, CURL_VERSION_CURLDEBUG), #endif #if defined(_WIN32) && defined(UNICODE) && defined(_UNICODE) FEATURE("Unicode", NULL, CURL_VERSION_UNICODE), #endif #ifdef USE_UNIX_SOCKETS FEATURE("UnixSockets", NULL, CURL_VERSION_UNIX_SOCKETS), #endif #ifdef HAVE_ZSTD FEATURE("zstd", NULL, CURL_VERSION_ZSTD), #endif {NULL, NULL, 0} }; static const char *feature_names[sizeof(features_table) / sizeof(features_table[0])] = {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 bitmask is built at runtime */ NULL, /* ssl_version */ 0, /* ssl_version_num, this is kept at zero */ NULL, /* zlib_version */ supported_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 */ NULL, /* Hyper version */ NULL, /* gsasl version */ feature_names, NULL /* rtmp version */ }; curl_version_info_data *curl_version_info(CURLversion stamp) { size_t n; const struct feat *p; int features = 0; #if defined(USE_SSH) static char ssh_buf[80]; /* 'ssh_buffer' clashes with libssh/libssh.h */ #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 (void)stamp; /* avoid compiler warnings, we do not use this */ #ifdef USE_SSL Curl_ssl_version(ssl_buffer, sizeof(ssl_buffer)); version_info.ssl_version = ssl_buffer; #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); #endif #if defined(USE_SSH) Curl_ssh_version(ssh_buf, sizeof(ssh_buf)); version_info.libssh_version = ssh_buf; #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 = (unsigned int)h2->version_num; version_info.nghttp2_version = h2->version_str; } #endif #ifdef USE_HTTP3 { static char quicbuffer[80]; Curl_quic_ver(quicbuffer, sizeof(quicbuffer)); version_info.quic_version = quicbuffer; } #endif #ifdef USE_HYPER { static char hyper_buffer[30]; msnprintf(hyper_buffer, sizeof(hyper_buffer), "Hyper/%s", hyper_version()); version_info.hyper_version = hyper_buffer; } #endif #ifdef USE_GSASL { version_info.gsasl_version = gsasl_check_version(NULL); } #endif /* Get available features, build bitmask and names array. */ n = 0; for(p = features_table; p->name; p++) if(!p->present || p->present(&version_info)) { features |= p->bitmask; feature_names[n++] = p->name; } feature_names[n] = NULL; /* Terminate array. */ version_info.features = features; #ifdef USE_LIBRTMP { static char rtmp_version[30]; Curl_rtmp_version(rtmp_version, sizeof(rtmp_version)); version_info.rtmp_version = rtmp_version; } #endif return &version_info; }