curl_version() shows the versions of libcurl, libssl and zlib and
supported protocols. curl_options() lists all options available in
the current version of libcurl. The dataset curl_symbols lists all
symbols (including options) provides more information about the symbols,
including when support was added/removed from libcurl.
curl_options(filter = "") curl_symbols(filter = "") curl_version()
| filter | string: only return options with string in name |
|---|
# Available options curl_options()#> abstract_unix_socket accept_encoding #> 10264 10102 #> accepttimeout_ms address_scope #> 212 171 #> altsvc altsvc_ctrl #> 10287 286 #> append autoreferer #> 50 58 #> buffersize cainfo #> 98 10065 #> capath certinfo #> 10097 172 #> chunk_bgn_function chunk_data #> 20198 10201 #> chunk_end_function closesocketdata #> 20199 10209 #> closesocketfunction connect_only #> 20208 141 #> connect_to connecttimeout #> 10243 78 #> connecttimeout_ms conv_from_network_function #> 156 20142 #> conv_from_utf8_function conv_to_network_function #> 20144 20143 #> cookie cookiefile #> 10022 10031 #> cookiejar cookielist #> 10082 10135 #> cookiesession copypostfields #> 96 10165 #> crlf crlfile #> 27 10169 #> curlu customrequest #> 10282 10036 #> debugdata debugfunction #> 10095 20094 #> default_protocol dirlistonly #> 10238 48 #> disallow_username_in_url dns_cache_timeout #> 278 92 #> dns_interface dns_local_ip4 #> 10221 10222 #> dns_local_ip6 dns_servers #> 10223 10211 #> dns_shuffle_addresses dns_use_global_cache #> 275 91 #> doh_url egdsocket #> 10279 10077 #> errorbuffer expect_100_timeout_ms #> 10010 227 #> failonerror filetime #> 45 69 #> fnmatch_data fnmatch_function #> 10202 20200 #> followlocation forbid_reuse #> 52 75 #> fresh_connect ftp_account #> 74 10134 #> ftp_alternative_to_user ftp_create_missing_dirs #> 10147 110 #> ftp_filemethod ftp_response_timeout #> 138 112 #> ftp_skip_pasv_ip ftp_ssl_ccc #> 137 154 #> ftp_use_eprt ftp_use_epsv #> 106 85 #> ftp_use_pret ftpport #> 188 10017 #> ftpsslauth gssapi_delegation #> 129 210 #> happy_eyeballs_timeout_ms haproxyprotocol #> 271 274 #> header headerdata #> 42 10029 #> headerfunction headeropt #> 20079 229 #> http09_allowed http200aliases #> 285 10104 #> http_content_decoding http_transfer_decoding #> 158 157 #> http_version httpauth #> 84 107 #> httpget httpheader #> 80 10023 #> httppost httpproxytunnel #> 10024 61 #> ignore_content_length infilesize #> 136 14 #> infilesize_large interface #> 30115 10062 #> interleavedata interleavefunction #> 10195 20196 #> ioctldata ioctlfunction #> 10131 20130 #> ipresolve issuercert #> 113 10170 #> keep_sending_on_error keypasswd #> 245 10026 #> krblevel localport #> 10063 139 #> localportrange login_options #> 140 10224 #> low_speed_limit low_speed_time #> 19 20 #> mail_auth mail_from #> 10217 10186 #> mail_rcpt max_recv_speed_large #> 10187 30146 #> max_send_speed_large maxconnects #> 30145 71 #> maxfilesize maxfilesize_large #> 114 30117 #> maxredirs mimepost #> 68 10269 #> netrc netrc_file #> 51 10118 #> new_directory_perms new_file_perms #> 160 159 #> nobody noprogress #> 44 43 #> noproxy nosignal #> 10177 99 #> obsolete40 obsolete72 #> 10040 72 #> opensocketdata opensocketfunction #> 10164 20163 #> password path_as_is #> 10174 234 #> pinnedpublickey pipewait #> 10230 237 #> port post #> 3 47 #> postfields postfieldsize #> 10015 60 #> postfieldsize_large postquote #> 30120 10039 #> postredir pre_proxy #> 161 10262 #> prequote private #> 10093 10103 #> progressdata progressfunction #> 10057 20056 #> protocols proxy #> 181 10004 #> proxy_cainfo proxy_capath #> 10246 10247 #> proxy_crlfile proxy_keypasswd #> 10260 10258 #> proxy_pinnedpublickey proxy_service_name #> 10263 10235 #> proxy_ssl_cipher_list proxy_ssl_options #> 10259 261 #> proxy_ssl_verifyhost proxy_ssl_verifypeer #> 249 248 #> proxy_sslcert proxy_sslcerttype #> 10254 10255 #> proxy_sslkey proxy_sslkeytype #> 10256 10257 #> proxy_sslversion proxy_tls13_ciphers #> 250 10277 #> proxy_tlsauth_password proxy_tlsauth_type #> 10252 10253 #> proxy_tlsauth_username proxy_transfer_mode #> 10251 166 #> proxyauth proxyheader #> 111 10228 #> proxypassword proxyport #> 10176 59 #> proxytype proxyusername #> 101 10175 #> proxyuserpwd put #> 10006 54 #> quote random_file #> 10028 10076 #> range readdata #> 10007 10009 #> readfunction redir_protocols #> 20012 182 #> referer request_target #> 10016 10266 #> resolve resolver_start_data #> 10203 10273 #> resolver_start_function resume_from #> 20272 21 #> resume_from_large rtsp_client_cseq #> 30116 193 #> rtsp_request rtsp_server_cseq #> 189 194 #> rtsp_session_id rtsp_stream_uri #> 10190 10191 #> rtsp_transport sasl_ir #> 10192 218 #> seekdata seekfunction #> 10168 20167 #> service_name share #> 10236 10100 #> sockoptdata sockoptfunction #> 10149 20148 #> socks5_auth socks5_gssapi_nec #> 267 180 #> socks5_gssapi_service ssh_auth_types #> 10179 151 #> ssh_compression ssh_host_public_key_md5 #> 268 10162 #> ssh_keydata ssh_keyfunction #> 10185 20184 #> ssh_knownhosts ssh_private_keyfile #> 10183 10153 #> ssh_public_keyfile ssl_cipher_list #> 10152 10083 #> ssl_ctx_data ssl_ctx_function #> 10109 20108 #> ssl_enable_alpn ssl_enable_npn #> 226 225 #> ssl_falsestart ssl_options #> 233 216 #> ssl_sessionid_cache ssl_verifyhost #> 150 81 #> ssl_verifypeer ssl_verifystatus #> 64 232 #> sslcert sslcerttype #> 10025 10086 #> sslengine sslengine_default #> 10089 90 #> sslkey sslkeytype #> 10087 10088 #> sslversion stderr #> 32 10037 #> stream_depends stream_depends_e #> 10240 10241 #> stream_weight suppress_connect_headers #> 239 265 #> tcp_fastopen tcp_keepalive #> 244 213 #> tcp_keepidle tcp_keepintvl #> 214 215 #> tcp_nodelay telnetoptions #> 121 10070 #> tftp_blksize tftp_no_options #> 178 242 #> timecondition timeout #> 33 13 #> timeout_ms timevalue #> 155 34 #> timevalue_large tls13_ciphers #> 30270 10276 #> tlsauth_password tlsauth_type #> 10205 10206 #> tlsauth_username trailerdata #> 10204 10284 #> trailerfunction transfer_encoding #> 20283 207 #> transfertext unix_socket_path #> 53 10231 #> unrestricted_auth upkeep_interval_ms #> 105 281 #> upload upload_buffersize #> 46 280 #> url use_ssl #> 10002 119 #> useragent username #> 10018 10173 #> userpwd verbose #> 10005 41 #> wildcardmatch writedata #> 197 10001 #> writefunction xferinfofunction #> 20011 20219 #> xoauth2_bearer #> 10220# List proxy options curl_options("proxy")#> haproxyprotocol httpproxytunnel noproxy #> 274 61 10177 #> pre_proxy proxy proxy_cainfo #> 10262 10004 10246 #> proxy_capath proxy_crlfile proxy_keypasswd #> 10247 10260 10258 #> proxy_pinnedpublickey proxy_service_name proxy_ssl_cipher_list #> 10263 10235 10259 #> proxy_ssl_options proxy_ssl_verifyhost proxy_ssl_verifypeer #> 261 249 248 #> proxy_sslcert proxy_sslcerttype proxy_sslkey #> 10254 10255 10256 #> proxy_sslkeytype proxy_sslversion proxy_tls13_ciphers #> 10257 250 10277 #> proxy_tlsauth_password proxy_tlsauth_type proxy_tlsauth_username #> 10252 10253 10251 #> proxy_transfer_mode proxyauth proxyheader #> 166 111 10228 #> proxypassword proxyport proxytype #> 10176 59 101 #> proxyusername proxyuserpwd #> 10175 10006# Symbol table curl_symbols("proxy")#> name introduced deprecated removed value #> 141 CURL_VERSION_HTTPS_PROXY 7.52.0 <NA> <NA> 2097152 #> 200 CURLE_COULDNT_RESOLVE_PROXY 7.1 <NA> <NA> 5 #> 407 CURLINFO_PROXY_SSL_VERIFYRESULT 7.52.0 <NA> <NA> 2097199 #> 408 CURLINFO_PROXYAUTH_AVAIL 7.10.8 <NA> <NA> 2097176 #> 570 CURLOPT_HAPROXYPROTOCOL 7.60.0 <NA> <NA> 274 #> 584 CURLOPT_HTTPPROXYTUNNEL 7.3 <NA> <NA> 61 #> 624 CURLOPT_NOPROXY 7.19.4 <NA> <NA> 10177 #> 644 CURLOPT_PRE_PROXY 7.52.0 <NA> <NA> 10262 #> 650 CURLOPT_PROXY 7.1 <NA> <NA> 10004 #> 651 CURLOPT_PROXY_CAINFO 7.52.0 <NA> <NA> 10246 #> 652 CURLOPT_PROXY_CAPATH 7.52.0 <NA> <NA> 10247 #> 653 CURLOPT_PROXY_CRLFILE 7.52.0 <NA> <NA> 10260 #> 654 CURLOPT_PROXY_KEYPASSWD 7.52.0 <NA> <NA> 10258 #> 655 CURLOPT_PROXY_PINNEDPUBLICKEY 7.52.0 <NA> <NA> 10263 #> 656 CURLOPT_PROXY_SERVICE_NAME 7.43.0 <NA> <NA> 10235 #> 657 CURLOPT_PROXY_SSL_CIPHER_LIST 7.52.0 <NA> <NA> 10259 #> 658 CURLOPT_PROXY_SSL_OPTIONS 7.52.0 <NA> <NA> 261 #> 659 CURLOPT_PROXY_SSL_VERIFYHOST 7.52.0 <NA> <NA> 249 #> 660 CURLOPT_PROXY_SSL_VERIFYPEER 7.52.0 <NA> <NA> 248 #> 661 CURLOPT_PROXY_SSLCERT 7.52.0 <NA> <NA> 10254 #> 662 CURLOPT_PROXY_SSLCERTTYPE 7.52.0 <NA> <NA> 10255 #> 663 CURLOPT_PROXY_SSLKEY 7.52.0 <NA> <NA> 10256 #> 664 CURLOPT_PROXY_SSLKEYTYPE 7.52.0 <NA> <NA> 10257 #> 665 CURLOPT_PROXY_SSLVERSION 7.52.0 <NA> <NA> 250 #> 666 CURLOPT_PROXY_TLS13_CIPHERS 7.61.0 <NA> <NA> 10277 #> 667 CURLOPT_PROXY_TLSAUTH_PASSWORD 7.52.0 <NA> <NA> 10252 #> 668 CURLOPT_PROXY_TLSAUTH_TYPE 7.52.0 <NA> <NA> 10253 #> 669 CURLOPT_PROXY_TLSAUTH_USERNAME 7.52.0 <NA> <NA> 10251 #> 670 CURLOPT_PROXY_TRANSFER_MODE 7.18.0 <NA> <NA> 166 #> 671 CURLOPT_PROXYAUTH 7.10.7 <NA> <NA> 111 #> 672 CURLOPT_PROXYHEADER 7.37.0 <NA> <NA> 10228 #> 673 CURLOPT_PROXYPASSWORD 7.19.1 <NA> <NA> 10176 #> 674 CURLOPT_PROXYPORT 7.1 <NA> <NA> 59 #> 675 CURLOPT_PROXYTYPE 7.10 <NA> <NA> 101 #> 676 CURLOPT_PROXYUSERNAME 7.19.1 <NA> <NA> 10175 #> 677 CURLOPT_PROXYUSERPWD 7.1 <NA> <NA> 10006 #> 836 CURLPROXY_HTTP 7.10 <NA> <NA> 0 #> 837 CURLPROXY_HTTP_1_0 7.19.4 <NA> <NA> 1 #> 838 CURLPROXY_HTTPS 7.52.0 <NA> <NA> 2 #> 839 CURLPROXY_SOCKS4 7.10 <NA> <NA> 4 #> 840 CURLPROXY_SOCKS4A 7.18.0 <NA> <NA> 6 #> 841 CURLPROXY_SOCKS5 7.10 <NA> <NA> 5 #> 842 CURLPROXY_SOCKS5_HOSTNAME 7.18.0 <NA> <NA> 7 #> type #> 141 <NA> #> 200 <NA> #> 407 <NA> #> 408 <NA> #> 570 integer #> 584 integer #> 624 string #> 644 string #> 650 string #> 651 string #> 652 string #> 653 string #> 654 string #> 655 string #> 656 string #> 657 string #> 658 integer #> 659 integer #> 660 integer #> 661 string #> 662 string #> 663 string #> 664 string #> 665 integer #> 666 string #> 667 string #> 668 string #> 669 string #> 670 integer #> 671 integer #> 672 string #> 673 string #> 674 integer #> 675 integer #> 676 string #> 677 string #> 836 <NA> #> 837 <NA> #> 838 <NA> #> 839 <NA> #> 840 <NA> #> 841 <NA> #> 842 <NA># Curl/ssl version info curl_version()#> $version #> [1] "7.64.1" #> #> $ssl_version #> [1] "(SecureTransport) LibreSSL/2.8.3" #> #> $libz_version #> [1] "1.2.11" #> #> $libssh_version #> [1] NA #> #> $libidn_version #> [1] NA #> #> $host #> [1] "x86_64-apple-darwin19.0" #> #> $protocols #> [1] "dict" "file" "ftp" "ftps" "gopher" "http" "https" "imap" #> [9] "imaps" "ldap" "ldaps" "pop3" "pop3s" "rtsp" "smb" "smbs" #> [17] "smtp" "smtps" "telnet" "tftp" #> #> $ipv6 #> [1] TRUE #> #> $http2 #> [1] TRUE #> #> $idn #> [1] FALSE #>