/*************************************************************************** * _ _ ____ _ * 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 "tool_setup.h" #include "strcase.h" #include "curlx.h" #include "tool_libinfo.h" #include "memdebug.h" /* keep this as LAST include */ /* global variable definitions, for libcurl runtime info */ static const char *no_protos = NULL; curl_version_info_data *curlinfo = NULL; const char * const *built_in_protos = &no_protos; size_t proto_count = 0; const char *proto_file = NULL; const char *proto_ftp = NULL; const char *proto_ftps = NULL; const char *proto_http = NULL; const char *proto_https = NULL; const char *proto_rtsp = NULL; const char *proto_scp = NULL; const char *proto_sftp = NULL; const char *proto_tftp = NULL; #ifndef CURL_DISABLE_IPFS const char *proto_ipfs = "ipfs"; const char *proto_ipns = "ipns"; #endif /* !CURL_DISABLE_IPFS */ static struct proto_name_tokenp { const char *proto_name; const char **proto_tokenp; } const possibly_built_in[] = { { "file", &proto_file }, { "ftp", &proto_ftp }, { "ftps", &proto_ftps }, { "http", &proto_http }, { "https", &proto_https }, { "rtsp", &proto_rtsp }, { "scp", &proto_scp }, { "sftp", &proto_sftp }, { "tftp", &proto_tftp }, { NULL, NULL } }; bool feature_altsvc = FALSE; bool feature_brotli = FALSE; bool feature_hsts = FALSE; bool feature_http2 = FALSE; bool feature_http3 = FALSE; bool feature_httpsproxy = FALSE; bool feature_libz = FALSE; bool feature_ntlm = FALSE; bool feature_ntlm_wb = FALSE; bool feature_spnego = FALSE; bool feature_ssl = FALSE; bool feature_tls_srp = FALSE; bool feature_zstd = FALSE; bool feature_ech = FALSE; static struct feature_name_presentp { const char *feature_name; bool *feature_presentp; int feature_bitmask; } const maybe_feature[] = { /* Keep alphabetically sorted. */ {"alt-svc", &feature_altsvc, CURL_VERSION_ALTSVC}, {"AsynchDNS", NULL, CURL_VERSION_ASYNCHDNS}, {"brotli", &feature_brotli, CURL_VERSION_BROTLI}, {"CharConv", NULL, CURL_VERSION_CONV}, {"Debug", NULL, CURL_VERSION_DEBUG}, {"ECH", &feature_ech, 0}, {"gsasl", NULL, CURL_VERSION_GSASL}, {"GSS-API", NULL, CURL_VERSION_GSSAPI}, {"HSTS", &feature_hsts, CURL_VERSION_HSTS}, {"HTTP2", &feature_http2, CURL_VERSION_HTTP2}, {"HTTP3", &feature_http3, CURL_VERSION_HTTP3}, {"HTTPS-proxy", &feature_httpsproxy, CURL_VERSION_HTTPS_PROXY}, {"IDN", NULL, CURL_VERSION_IDN}, {"IPv6", NULL, CURL_VERSION_IPV6}, {"Kerberos", NULL, CURL_VERSION_KERBEROS5}, {"Largefile", NULL, CURL_VERSION_LARGEFILE}, {"libz", &feature_libz, CURL_VERSION_LIBZ}, {"MultiSSL", NULL, CURL_VERSION_MULTI_SSL}, {"NTLM", &feature_ntlm, CURL_VERSION_NTLM}, {"NTLM_WB", &feature_ntlm_wb, CURL_VERSION_NTLM_WB}, {"PSL", NULL, CURL_VERSION_PSL}, {"SPNEGO", &feature_spnego, CURL_VERSION_SPNEGO}, {"SSL", &feature_ssl, CURL_VERSION_SSL}, {"SSPI", NULL, CURL_VERSION_SSPI}, {"threadsafe", NULL, CURL_VERSION_THREADSAFE}, {"TLS-SRP", &feature_tls_srp, CURL_VERSION_TLSAUTH_SRP}, {"TrackMemory", NULL, CURL_VERSION_CURLDEBUG}, {"Unicode", NULL, CURL_VERSION_UNICODE}, {"UnixSockets", NULL, CURL_VERSION_UNIX_SOCKETS}, {"zstd", &feature_zstd, CURL_VERSION_ZSTD}, {NULL, NULL, 0} }; static const char *fnames[sizeof(maybe_feature) / sizeof(maybe_feature[0])]; const char * const *feature_names = fnames; size_t feature_count; /* * libcurl_info_init: retrieves runtime information about libcurl, * setting a global pointer 'curlinfo' to libcurl's runtime info * struct, count protocols and flag those we are interested in. * Global pointer feature_names is set to the feature names array. If * the latter is not returned by curl_version_info(), it is built from * the returned features bit mask. */ CURLcode get_libcurl_info(void) { CURLcode result = CURLE_OK; const char *const *builtin; /* Pointer to libcurl's runtime version information */ curlinfo = curl_version_info(CURLVERSION_NOW); if(!curlinfo) return CURLE_FAILED_INIT; if(curlinfo->protocols) { const struct proto_name_tokenp *p; built_in_protos = curlinfo->protocols; for(builtin = built_in_protos; !result && *builtin; builtin++) { /* Identify protocols we are interested in. */ for(p = possibly_built_in; p->proto_name; p++) if(curl_strequal(p->proto_name, *builtin)) { *p->proto_tokenp = *builtin; break; } } proto_count = builtin - built_in_protos; } if(curlinfo->age >= CURLVERSION_ELEVENTH && curlinfo->feature_names) feature_names = curlinfo->feature_names; else { const struct feature_name_presentp *p; const char **cpp = fnames; for(p = maybe_feature; p->feature_name; p++) if(curlinfo->features & p->feature_bitmask) *cpp++ = p->feature_name; *cpp = NULL; } /* Identify features we are interested in. */ for(builtin = feature_names; *builtin; builtin++) { const struct feature_name_presentp *p; for(p = maybe_feature; p->feature_name; p++) if(curl_strequal(p->feature_name, *builtin)) { if(p->feature_presentp) *p->feature_presentp = TRUE; break; } ++feature_count; } return CURLE_OK; } /* Tokenize a protocol name. * Return the address of the protocol name listed by the library, or NULL if * not found. * Although this may seem useless, this always returns the same address for * a given protocol and thus allows comparing pointers rather than strings. * In addition, the returned pointer is not deallocated until the program ends. */ const char *proto_token(const char *proto) { const char * const *builtin; if(!proto) return NULL; for(builtin = built_in_protos; *builtin; builtin++) if(curl_strequal(*builtin, proto)) break; return *builtin; }