Interface CurlOption

Path to an abstract Unix domain socket.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ABSTRACT_UNIX_SOCKET.html

Accept-Encoding and automatic decompressing data.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ACCEPT_ENCODING.html

Timeout for waiting for the server's connect back to be accepted.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ACCEPTTIMEOUT_MS.html

IPv6 scope for local addresses.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ADDRESS_SCOPE.html

Specify the Alt-Svc: cache filename.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ALTSVC.html

Enable and configure Alt-Svc: treatment.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ALTSVC_CTRL.html

Append to remote file.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_APPEND.html

Automatically set Referer: header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_AUTOREFERER.html

AWS HTTP V4 Signature. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_AWS_SIGV4.html

Ask for alternate buffer size.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_BUFFERSIZE.html

Timeout for CA cache.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CA_CACHE_TIMEOUT.html

CA cert bundle.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CAINFO.html

CA cert bundle memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CAINFO_BLOB.html

Path to CA cert bundle.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CAPATH.html

Extract certificate info.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CERTINFO.html

Callback for wildcard download start of chunk.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CHUNK_BGN_FUNCTION.html

Callback for wildcard download end of chunk.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CHUNK_END_FUNCTION.html

Only connect, nothing else.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CONNECT_ONLY.html

Connect to a specific host and port.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CONNECT_TO.html

Timeout for the connection phase.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CONNECTTIMEOUT.html

Millisecond timeout for the connection phase.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CONNECTTIMEOUT_MS.html

Cookie(s) to send.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_COOKIE.html

File to read cookies from.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_COOKIEFILE.html

File to write cookies to.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_COOKIEJAR.html

Add or control cookies.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_COOKIELIST.html

Start a new cookie session.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_COOKIESESSION.html

Convert newlines.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CRLF.html

Certificate Revocation List.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CRLFILE.html

Custom request/method.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_CUSTOMREQUEST.html

Callback for debug information.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DEBUGFUNCTION.html

Default protocol.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DEFAULT_PROTOCOL.html

List only.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DIRLISTONLY.html

Do not allow username in URL.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DISALLOW_USERNAME_IN_URL.html

Timeout for DNS cache.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_CACHE_TIMEOUT.html

Bind name resolves to this interface.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_INTERFACE.html

Bind name resolves to this IP4 address. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_LOCAL_IP4.html

Bind name resolves to this IP6 address. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_LOCAL_IP6.html

Preferred DNS servers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_SERVERS.html

Shuffle addresses before use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_SHUFFLE_ADDRESSES.html

OBSOLETE Enable global DNS cache.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DNS_USE_GLOBAL_CACHE.html

Verify the hostname in the DoH (DNS-over-HTTPS) SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DOH_SSL_VERIFYHOST.html

Verify the DoH (DNS-over-HTTPS) SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DOH_SSL_VERIFYPEER.html

Verify the DoH (DNS-over-HTTPS) SSL certificate's status.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DOH_SSL_VERIFYSTATUS.html

Use this DoH server for name resolves.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_DOH_URL.html

Set the configuration for ECH.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ECH.html

OBSOLETE Identify EGD socket for entropy.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_EGDSOCKET.html

100-continue timeout. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_EXPECT_100_TIMEOUT_MS.html

Fail on HTTP 4xx errors.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FAILONERROR.html

Request file modification date and time.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FILETIME.html

Callback for wildcard matching.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FNMATCH_FUNCTION.html

Follow HTTP redirects.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FOLLOWLOCATION.html

Prevent subsequent connections from reusing this.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FORBID_REUSE.html

Use a new connection.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FRESH_CONNECT.html

Send ACCT command.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_ACCOUNT.html

Alternative to USER.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_ALTERNATIVE_TO_USER.html

Create missing directories on the remote server.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_CREATE_MISSING_DIRS.html

Specify how to reach files.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_FILEMETHOD.html

Ignore the IP address in the PASV response.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_SKIP_PASV_IP.html

Back to non-TLS again after authentication.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_SSL_CCC.html

Use EPRT.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_USE_EPRT.html

Use EPSV.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_USE_EPSV.html

Use PRET.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTP_USE_PRET.html

Use active FTP.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTPPORT.html

Control how to do TLS.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_FTPSSLAUTH.html

Disable GSS-API delegation.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_GSSAPI_DELEGATION.html

Timeout for happy eyeballs.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS.html

Spoof the client IP in an HAProxy PROXY protocol v1 header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HAPROXY_CLIENT_IP.html

Send an HAProxy PROXY protocol v1 header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HAPROXYPROTOCOL.html

Include the header in the body output.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HEADER.html

Callback for writing received headers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HEADERFUNCTION.html

Control custom headers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HEADEROPT.html

Set HSTS cache file.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HSTS.html

Enable HSTS.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HSTS_CTRL.html

Set HSTS read callback.

You can either return a single CurlHstsReadCallbackResult object or an array of CurlHstsReadCallbackResult objects. If returning an array, the callback will only be called once per request. If returning a single object, the callback will be called multiple times until null is returned.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HSTSREADFUNCTION.html

Set HSTS write callback.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HSTSWRITEFUNCTION.html

Disable Content decoding.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTP_CONTENT_DECODING.html

Disable Transfer decoding.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTP_TRANSFER_DECODING.html

HTTP version to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTP_VERSION.html

Allow HTTP/0.9 responses.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTP09_ALLOWED.html

Alternative versions of 200 OK. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTP200ALIASES.html

HTTP server authentication methods.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPAUTH.html

Do an HTTP GET request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPGET.html

Custom HTTP headers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPHEADER.html

Deprecated option Multipart formpost HTTP POST.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPPOST.html

Tunnel through the HTTP proxy.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_HTTPPROXYTUNNEL.html

Ignore Content-Length.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_IGNORE_CONTENT_LENGTH.html

Size of file to send.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_INFILESIZE.html

Size of file to send.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_INFILESIZE_LARGE.html

Bind connection locally to this.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_INTERFACE.html

IP version to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_IPRESOLVE.html

Issuer certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ISSUERCERT.html

Issuer certificate memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_ISSUERCERT_BLOB.html

Keep sending on HTTP >= 300 errors.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_KEEP_SENDING_ON_ERROR.html

Client key password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_KEYPASSWD.html

OBSOLETE. Kerberos security level.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_KRBLEVEL.html

Bind connection locally to this port.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_LOCALPORT.html

Bind connection locally to port range.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_LOCALPORTRANGE.html

Login options.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_LOGIN_OPTIONS.html

Low speed limit to abort transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_LOW_SPEED_LIMIT.html

Time to be below the speed to trigger low speed abort.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_LOW_SPEED_TIME.html

Authentication address.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAIL_AUTH.html

Address of the sender.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAIL_FROM.html

Address of the recipients.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAIL_RCPT.html

Allow RCPT TO command to fail for some recipients.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAIL_RCPT_ALLOWFAILS.html

Cap the download speed to this.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAX_RECV_SPEED_LARGE.html

Cap the upload speed to this.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAX_SEND_SPEED_LARGE.html

Limit the age (idle time) of connections for reuse.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXAGE_CONN.html

Maximum number of connections in the connection pool.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXCONNECTS.html

Maximum file size to get.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXFILESIZE.html

Maximum file size to get.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXFILESIZE_LARGE.html

Limit the age (since creation) of connections for reuse.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXLIFETIME_CONN.html

Maximum number of redirects to follow.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_MAXREDIRS.html

Enable .netrc parsing.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NETRC.html

.netrc filename.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NETRC_FILE.html

Mode for creating new remote directories.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NEW_DIRECTORY_PERMS.html

Mode for creating new remote files.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NEW_FILE_PERMS.html

Do not get the body contents.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NOBODY.html

Shut off the progress meter.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NOPROGRESS.html

Filter out hosts from proxy use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NOPROXY.html

Do not install signal handlers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_NOSIGNAL.html

Password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PASSWORD.html

Disable squashing /../ and /./ sequences in the path.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PATH_AS_IS.html

Set pinned SSL public key .

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PINNEDPUBLICKEY.html

Wait on connection to pipeline on it.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PIPEWAIT.html

Port number to connect to.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PORT.html

Make an HTTP POST.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_POST.html

The POST data is this big.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_POSTFIELDSIZE.html

The POST data is this big.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_POSTFIELDSIZE_LARGE.html

Commands to run after transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_POSTQUOTE.html

How to act on redirects after POST.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_POSTREDIR.html

Socks proxy to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PRE_PROXY.html

Commands to run just before transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PREQUOTE.html

Callback to be called after a connection is established but before a request is made on that connection.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PREREQFUNCTION.html

OBSOLETE callback for progress meter.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROGRESSFUNCTION.html

Deprecated option Allowed protocols.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROTOCOLS.html

Allowed protocols.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROTOCOLS_STR.html

Proxy to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY.html

Proxy CA cert bundle.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_CAINFO.html

Proxy CA cert bundle memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_CAINFO_BLOB.html

Path to proxy CA cert bundle.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_CAPATH.html

Proxy Certificate Revocation List.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_CRLFILE.html

Proxy issuer certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_ISSUERCERT.html

Proxy issuer certificate memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_ISSUERCERT_BLOB.html

Proxy client key password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_KEYPASSWD.html

Set the proxy's pinned SSL public key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_PINNEDPUBLICKEY.html

Proxy authentication service name.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SERVICE_NAME.html

Proxy ciphers to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSL_CIPHER_LIST.html

Control proxy SSL behavior.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSL_OPTIONS.html

Verify the hostname in the proxy SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSL_VERIFYHOST.html

Verify the proxy SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSL_VERIFYPEER.html

Proxy client cert.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLCERT.html

Proxy client cert memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLCERT_BLOB.html

Proxy client cert type.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLCERTTYPE.html

Proxy client key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLKEY.html

Proxy client key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLKEY_BLOB.html

Proxy client key type.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLKEYTYPE.html

Proxy SSL version to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_SSLVERSION.html

Proxy TLS 1.3 cipher suites to use. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_TLS13_CIPHERS.html

Proxy TLS authentication password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_TLSAUTH_PASSWORD.html

Proxy TLS authentication methods.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_TLSAUTH_TYPE.html

Proxy TLS authentication username.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_TLSAUTH_USERNAME.html

Add transfer mode to URL over proxy.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXY_TRANSFER_MODE.html

HTTP proxy authentication methods.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYAUTH.html

Custom HTTP headers sent to proxy.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYHEADER.html

Proxy password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYPASSWORD.html

Proxy port to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYPORT.html

Proxy type.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYTYPE.html

Proxy username.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYUSERNAME.html

Proxy username and password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PROXYUSERPWD.html

Deprecated option Issue an HTTP PUT request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_PUT.html

To be set by toplevel tools like "curl" to skip lengthy cleanups when they are about to call exit() anyway.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_QUICK_EXIT.html

Commands to run before transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_QUOTE.html

OBSOLETE Provide source for entropy random data.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RANDOM_FILE.html

Range requests.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RANGE.html

Data pointer to pass to the read callback.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_READDATA.html

Callback for reading data.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_READFUNCTION.html

Deprecated option Protocols to allow redirects to.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_REDIR_PROTOCOLS.html

Protocols to allow redirects to.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_REDIR_PROTOCOLS_STR.html

Referer: header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_REFERER.html

Set the request target.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_REQUEST_TARGET.html

Provide fixed/fake name resolves.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RESOLVE.html

Resume a transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RESUME_FROM.html

Resume a transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RESUME_FROM_LARGE.html

Client CSEQ number.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_CLIENT_CSEQ.html

RTSP request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_REQUEST.html

CSEQ number for RTSP Server->Client request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_SERVER_CSEQ.html

RTSP session-id.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_SESSION_ID.html

RTSP stream URI.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_STREAM_URI.html

RTSP Transport: header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_RTSP_TRANSPORT.html

SASL authorization identity (identity to act as).

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SASL_AUTHZID.html

Enable SASL initial response.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SASL_IR.html

Callback for seek operations.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SEEKFUNCTION.html

Timeout for server responses.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SERVER_RESPONSE_TIMEOUT.html

Timeout for server responses.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SERVER_RESPONSE_TIMEOUT_MS.html

Authentication service name.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SERVICE_NAME.html

Share object to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SHARE.html

Socks5 authentication methods. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SOCKS5_AUTH.html

Socks5 GSSAPI NEC mode. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SOCKS5_GSSAPI_NEC.html

Deprecated option Socks5 GSSAPI service name. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SOCKS5_GSSAPI_SERVICE.html

SSH authentication types.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_AUTH_TYPES.html

Enable SSH compression.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_COMPRESSION.html

MD5 of host's public key. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_HOST_PUBLIC_KEY_MD5.html

Custom pointer to pass to ssh host key callback.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_HOSTKEYDATA.html

Filename with known hosts.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_KNOWNHOSTS.html

Filename of the private key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_PRIVATE_KEYFILE.html

Filename of the public key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSH_PUBLIC_KEYFILE.html

Ciphers to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_CIPHER_LIST.html

Set key exchange curves.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_EC_CURVES.html

Enable use of ALPN.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_ENABLE_ALPN.html

OBSOLETE Enable use of NPN.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_ENABLE_NPN.html

Deprecated option Enable TLS False Start.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_FALSESTART.html

Control SSL behavior.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_OPTIONS.html

Disable SSL session-id cache.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_SESSIONID_CACHE.html

TLS signature algorithms to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_SIGNATURE_ALGORITHMS.html

Verify the hostname in the SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_VERIFYHOST.html

Verify the SSL certificate.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_VERIFYPEER.html

Verify the SSL certificate's status.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSL_VERIFYSTATUS.html

Client cert.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLCERT.html

Client cert memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLCERT_BLOB.html

Client cert type.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLCERTTYPE.html

Use identifier with SSL engine.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLENGINE.html

Default SSL engine.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLENGINE_DEFAULT.html

Client key.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLKEY.html

Client key memory buffer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLKEY_BLOB.html

Client key type.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLKEYTYPE.html

SSL version to use.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SSLVERSION.html

Suppress proxy CONNECT response headers from user callbacks.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_SUPPRESS_CONNECT_HEADERS.html

Enable TCP Fast Open.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_FASTOPEN.html

Enable TCP keep-alive.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_KEEPALIVE.html

Maximum number of keep-alive probes.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_KEEPCNT.html

Idle time before sending keep-alive.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_KEEPIDLE.html

Interval between keep-alive probes.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_KEEPINTVL.html

Disable the Nagle algorithm.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TCP_NODELAY.html

TELNET options.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TELNETOPTIONS.html

TFTP block size.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TFTP_BLKSIZE.html

Do not send TFTP options requests.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TFTP_NO_OPTIONS.html

Make a time conditional request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TIMECONDITION.html

Timeout for the entire request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TIMEOUT.html

Millisecond timeout for the entire request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TIMEOUT_MS.html

Time value for the time conditional request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TIMEVALUE.html

Time value for the time conditional request.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TIMEVALUE_LARGE.html

TLS 1.3 cipher suites to use. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TLS13_CIPHERS.html

TLS authentication password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TLSAUTH_PASSWORD.html

TLS authentication methods.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TLSAUTH_TYPE.html

TLS authentication username.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TLSAUTH_USERNAME.html

Set callback for sending trailing headers.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TRAILERFUNCTION.html

Request Transfer-Encoding.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TRANSFER_ENCODING.html

Use text transfer.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_TRANSFERTEXT.html

Path to a Unix domain socket.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UNIX_SOCKET_PATH.html

Do not restrict authentication to original host.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UNRESTRICTED_AUTH.html

Sets the interval at which connection upkeep are performed.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UPKEEP_INTERVAL_MS.html

Upload data.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UPLOAD.html

Set upload buffer size.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UPLOAD_BUFFERSIZE.html

Set upload flags.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_UPLOAD_FLAGS.html

URL to work on.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_URL.html

Use TLS/SSL.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_USE_SSL.html

User-Agent: header.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_USERAGENT.html

Username.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_USERNAME.html

Username and password.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_USERPWD.html

Display verbose information.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_VERBOSE.html

Transfer multiple files according to a filename pattern.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_WILDCARDMATCH.html

Callback for writing data.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_WRITEFUNCTION.html

Callback for progress meter.

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_XFERINFOFUNCTION.html

OAuth2 bearer token. See

Official libcurl documentation: https://curl.haxx.se/libcurl/c/CURLOPT_XOAUTH2_BEARER.html