easy:UnsetOpt(option)

The following option types are currently supported:

#CURLOPT_ABSTRACT_UNIX_SOCKET

Path to an abstract Unix domain socket. See easy:UnsetOpt_Abstract_Unix_Socket for details.

#CURLOPT_ACCEPT_ENCODING

Accept-Encoding and automatic decompressing data. See easy:UnsetOpt_Accept_Encoding for details.

#CURLOPT_ACCEPTTIMEOUT_MS

Timeout for waiting for the server's connect back to be accepted. See easy:UnsetOpt_AcceptTimeout_MS for details.

#CURLOPT_ADDRESS_SCOPE

IPv6 scope for local addresses. See easy:UnsetOpt_Address_Scope for details.

#CURLOPT_ALTSVC

Specify the Alt-Svc: cache file name. See easy:UnsetOpt_AltSvc for details. (V2.0)

#CURLOPT_ALTSVC_CTRL

Enable and configure Alt-Svc: treatment. See easy:UnsetOpt_AltSvc_Ctrl for details. (V2.0)

#CURLOPT_APPEND

Append to remote file. See easy:UnsetOpt_Append for details.

#CURLOPT_AUTOREFERER

Automatically get Referer: header. See easy:UnsetOpt_AutoReferer for details.

#CURLOPT_AWS_SIGV4

AWS HTTP V4 Signature. See easy:UnsetOpt_AWS_SigV4 for details. (V2.0)

#CURLOPT_BUFFERSIZE

Ask for alternate buffer size. See easy:UnsetOpt_BufferSize for details.

#CURLOPT_CA_CACHE_TIMEOUT

Timeout for CA cache. See easy:UnsetOpt_CA_Cache_Timeout for details. (V2.0)

#CURLOPT_CAINFO

CA cert bundle. See easy:UnsetOpt_CAInfo for details.

#CURLOPT_CAINFO_BLOB

CA cert bundle memory buffer. See easy:UnsetOpt_CAInfo_Blob for details. (V2.0)

#CURLOPT_CAPATH

Path to CA cert bundle. See easy:UnsetOpt_CAPath for details.

#CURLOPT_CERTINFO

Extract certificate info. See easy:UnsetOpt_CertInfo for details.

#CURLOPT_CHUNK_BGN_FUNCTION

Callback for wildcard download start of chunk. See easy:UnsetOpt_Chunk_BGN_Function for details.

#CURLOPT_CHUNK_END_FUNCTION

Callback for wildcard download end of chunk. See easy:UnsetOpt_Chunk_End_Function for details.

#CURLOPT_CONNECT_ONLY

Only connect, nothing else. See easy:UnsetOpt_Connect_Only for details.

#CURLOPT_CONNECT_TO

Connect to a specific host and port. See easy:UnsetOpt_Connect_To for details.

#CURLOPT_CONNECTTIMEOUT

Timeout for the connection phase. See easy:UnsetOpt_ConnectTimeout for details.

#CURLOPT_CONNECTTIMEOUT_MS

Millisecond timeout for the connection phase. See easy:UnsetOpt_ConnectTimeout_MS for details.

#CURLOPT_COOKIE

Cookie(s) to send. See easy:UnsetOpt_Cookie for details.

#CURLOPT_COOKIEFILE

File to read cookies from. See easy:UnsetOpt_CookieFile for details.

#CURLOPT_COOKIEJAR

File to write cookies to. See easy:UnsetOpt_CookieJar for details.

#CURLOPT_COOKIELIST

Add or control cookies. See easy:UnsetOpt_CookieList for details.

#CURLOPT_COOKIESESSION

Start a new cookie session. See easy:UnsetOpt_CookieSession for details.

#CURLOPT_CRLF

Convert newlines. See easy:UnsetOpt_CRLF for details.

#CURLOPT_CRLFILE

Certificate Revocation List. See easy:UnsetOpt_CRLFile for details.

#CURLOPT_CURLU

Set URL to work on with a URL handle. See easy:UnsetOpt_CURLU for details. (V2.0)

#CURLOPT_CUSTOMREQUEST

Custom request/method. See easy:UnsetOpt_CustomRequest for details.

#CURLOPT_DEBUGFUNCTION

Callback for debug information. See easy:UnsetOpt_DebugFunction for details.

#CURLOPT_DEFAULT_PROTOCOL

Default protocol. See easy:UnsetOpt_Default_Protocol for details.

#CURLOPT_DIRLISTONLY

List only. See easy:UnsetOpt_DirListOnly for details.

#CURLOPT_DNS_CACHE_TIMEOUT

Timeout for DNS cache. See easy:UnsetOpt_DNS_Cache_Timeout for details.

#CURLOPT_DNS_INTERFACE

Bind name resolves to this interface. See easy:UnsetOpt_DNS_Interface for details.

#CURLOPT_DNS_LOCAL_IP4

Bind name resolves to this IP4 address. See easy:UnsetOpt_DNS_Local_IP4 for details.

#CURLOPT_DNS_LOCAL_IP6

Bind name resolves to this IP6 address. See easy:UnsetOpt_DNS_Local_IP6 for details.

#CURLOPT_DNS_SERVERS

Preferred DNS servers. See easy:UnsetOpt_DNS_Servers for details.

#CURLOPT_DNS_SHUFFLE_ADDRESSES

Shuffle addresses before use. See easy:UnsetOpt_DNS_Shuffle_Addresses for details. (V2.0)

#CURLOPT_DNS_USE_GLOBAL_CACHE

OBSOLETE Enable global DNS cache. See easy:UnsetOpt_DNS_Use_Global_Cache for details.

#CURLOPT_DISALLOW_USERNAME_IN_URL

Do not allow username in URL. See easy:UnsetOpt_Disallow_Username_In_URL for details. (V2.0)

#CURLOPT_DOH_SSL_VERIFYHOST

Verify the host name in the DoH (DNS-over-HTTPS) SSL certificate. See easy:UnsetOpt_DoH_SSL_VerifyHost for details. (V2.0)

#CURLOPT_DOH_SSL_VERIFYPEER

Verify the DoH (DNS-over-HTTPS) SSL certificate. See easy:UnsetOpt_DoH_SSL_VerifyPeer for details. (V2.0)

#CURLOPT_DOH_SSL_VERIFYSTATUS

Verify the DoH (DNS-over-HTTPS) SSL certificate's status. See easy:UnsetOpt_DoH_SSL_VerifyStatus for details. (V2.0)

#CURLOPT_DOH_URL

Use this DoH server for name resolves. See easy:UnsetOpt_DoH_URL for details. (V2.0)

#CURLOPT_EGDSOCKET

Identify EGD socket for entropy. See easy:UnsetOpt_EGDSocket for details.

#CURLOPT_EXPECT_100_TIMEOUT_MS

100-continue timeout. See easy:UnsetOpt_Expect_100_Timeout_MS for details.

#CURLOPT_FAILONERROR

Fail on HTTP 4xx errors. See easy:UnsetOpt_FailOnError for details.

#CURLOPT_FILETIME

Request file modification date and time. See easy:UnsetOpt_FileTime for details.

#CURLOPT_FNMATCH_FUNCTION

Callback for wildcard matching. See easy:UnsetOpt_FNMatch_Function for details.

#CURLOPT_FOLLOWLOCATION

Follow HTTP redirects. See easy:UnsetOpt_FollowLocation for details.

#CURLOPT_FORBID_REUSE

Prevent subsequent connections from re-using this. See easy:UnsetOpt_Forbid_Reuse for details.

#CURLOPT_FRESH_CONNECT

Use a new connection. See easy:UnsetOpt_Fresh_Connect for details.

#CURLOPT_FTP_ACCOUNT

Send ACCT command. See easy:UnsetOpt_FTP_Account for details.

#CURLOPT_FTP_ALTERNATIVE_TO_USER

Alternative to USER. See easy:UnsetOpt_FTP_Alternative_To_User for details.

#CURLOPT_FTP_CREATE_MISSING_DIRS

Create missing directories on the remote server. See easy:UnsetOpt_FTP_Create_Missing_Dirs for details.

#CURLOPT_FTP_FILEMETHOD

Specify how to reach files. See easy:UnsetOpt_FTP_FileMethod for details.

#CURLOPT_FTP_RESPONSE_TIMEOUT

Timeout for FTP responses. See easy:UnsetOpt_FTP_Response_Timeout for details.

#CURLOPT_FTP_SKIP_PASV_IP

Ignore the IP address in the PASV response. See easy:UnsetOpt_FTP_Skip_PASV_IP for details.

#CURLOPT_FTP_SSL_CCC

Back to non-TLS again after authentication. See easy:UnsetOpt_FTP_SSL_CCC for details.

#CURLOPT_FTP_USE_EPRT

Use EPTR. See easy:UnsetOpt_FTP_Use_Eprt for details.

#CURLOPT_FTP_USE_EPSV

Use EPSV. See easy:UnsetOpt_FTP_Use_Epsv for details.

#CURLOPT_FTP_USE_PRET

Use PRET. See easy:UnsetOpt_FTP_Use_Pret for details.

#CURLOPT_FTPPORT

Use active FTP. See easy:UnsetOpt_FTPPort for details.

#CURLOPT_FTPSSLAUTH

Control how to do TLS. See easy:UnsetOpt_FTPSSLAuth for details.

#CURLOPT_GSSAPI_DELEGATION

Disable GSS-API delegation. See easy:UnsetOpt_GSSAPI_Delegation for details.

#CURLOPT_HAPPY_EYEBALLS_TIMEOUT_MS

Timeout for happy eyeballs. See easy:UnsetOpt_Happy_Eyeballs_Timeout_MS for details. (V2.0)

#CURLOPT_HAPROXYPROTOCOL

Send an HAProxy PROXY protocol v1 header. See easy:UnsetOpt_HAProxyProtocol for details. (V2.0)

#CURLOPT_HEADER

Include the header in the body output. See easy:UnsetOpt_Header for details.

#CURLOPT_HEADERFUNCTION

Callback for writing received headers. See easy:UnsetOpt_HeaderFunction for details.

#CURLOPT_HEADEROPT

Control custom headers. See easy:UnsetOpt_HeaderOpt for details.

#CURLOPT_HSTS

Set HSTS cache file. See easy:UnsetOpt_HSTS for details. (V2.0)

#CURLOPT_HSTS_CTRL

Enable HSTS. See easy:UnsetOpt_HSTS_Ctrl for details. (V2.0)

#CURLOPT_HSTSREADFUNCTION

Set HSTS read callback. See easy:UnsetOpt_HSTSReadFunction for details. (V2.0)

#CURLOPT_HSTSWRITEFUNCTION

Set HSTS write callback. See easy:UnsetOpt_HSTSWriteFunction for details. (V2.0)

#CURLOPT_HTTP09_ALLOWED

Allow HTTP/0. See easy:UnsetOpt_HTTP09_Allowed for details. (V2.0)

#CURLOPT_HTTP200ALIASES

Alternative versions of 200 OK. See easy:UnsetOpt_HTTP200Aliases for details.

#CURLOPT_HTTP_CONTENT_DECODING

Disable Content decoding. See easy:UnsetOpt_HTTP_Content_Decoding for details.

#CURLOPT_HTTP_TRANSFER_DECODING

Disable Transfer decoding. See easy:UnsetOpt_HTTP_Transfer_Decoding for details.

#CURLOPT_HTTP_VERSION

HTTP version to use. See easy:UnsetOpt_HTTP_Version for details.

#CURLOPT_HTTPAUTH

HTTP server authentication methods. See easy:UnsetOpt_HTTPAuth for details.

#CURLOPT_HTTPGET

Do an HTTP GET request. See easy:UnsetOpt_HTTPGet for details.

#CURLOPT_HTTPHEADER

Custom HTTP headers. See easy:UnsetOpt_HTTPHeader for details.

#CURLOPT_HTTPPOST

Multipart formpost HTTP POST. See easy:UnsetOpt_HTTPPost for details.

#CURLOPT_HTTPPROXYTUNNEL

Tunnel through the HTTP proxy. See easy:UnsetOpt_HTTPProxyTunnel for details.

#CURLOPT_IGNORE_CONTENT_LENGTH

Ignore Content-Length. See easy:UnsetOpt_Ignore_Content_Length for details.

#CURLOPT_INFILESIZE

Size of file to send. See easy:UnsetOpt_InFileSize for details.

#CURLOPT_INFILESIZE_LARGE

Size of file to send. See easy:UnsetOpt_InFileSize_Large for details.

#CURLOPT_INTERFACE

Bind connection locally to this. See easy:UnsetOpt_Interface for details.

#CURLOPT_IPRESOLVE

IP version to resolve to. See easy:UnsetOpt_IPResolve for details.

#CURLOPT_ISSUERCERT

Issuer certificate. See easy:UnsetOpt_IssuerCert for details.

#CURLOPT_ISSUERCERT_BLOB

Issuer certificate memory buffer. See easy:UnsetOpt_IssuerCert_Blob for details. (V2.0)

#CURLOPT_KEEP_SENDING_ON_ERROR

Keep sending on HTTP >= 300 errors. See easy:UnsetOpt_Keep_Sending_On_Error for details.

#CURLOPT_KEYPASSWD

Client key password. See easy:UnsetOpt_KeyPasswd for details.

#CURLOPT_KRBLEVEL

Kerberos security level. See easy:UnsetOpt_KRBLevel for details.

#CURLOPT_LOCALPORT

Bind connection locally to this port. See easy:UnsetOpt_LocalPort for details.

#CURLOPT_LOCALPORTRANGE

Bind connection locally to port range. See easy:UnsetOpt_LocalPortRange for details.

#CURLOPT_LOGIN_OPTIONS

Login options. See easy:UnsetOpt_Login_Options for details.

#CURLOPT_LOW_SPEED_LIMIT

Low speed limit to abort transfer. See easy:UnsetOpt_Low_Speed_Limit for details.

#CURLOPT_LOW_SPEED_TIME

Time to be below the speed to trigger low speed abort. See easy:UnsetOpt_Low_Speed_Time for details.

#CURLOPT_MAIL_AUTH

Authentication address. See easy:UnsetOpt_Mail_Auth for details.

#CURLOPT_MAIL_FROM

Address of the sender. See easy:UnsetOpt_Mail_From for details.

#CURLOPT_MAIL_RCPT

Address of the recipients. See easy:UnsetOpt_Mail_RCPT for details.

#CURLOPT_MAIL_RCPT_ALLOWFAILS

Allow RCPT TO command to fail for some recipients. See easy:UnsetOpt_Mail_RCPT_AllowFails for details. (V2.0)

#CURLOPT_MAXAGE_CONN

Limit the age (idle time) of connections for reuse. See easy:UnsetOpt_MaxAge_Conn for details. (V2.0)

#CURLOPT_MAXLIFETIME_CONN

Limit the age (since creation) of connections for reuse. See easy:UnsetOpt_MaxLifeTime_Conn for details. (V2.0)

#CURLOPT_PREREQFUNCTION

Callback to be called after a connection is established but before a request is made on that connection. See easy:UnsetOpt_PreReqFunction for details. (V2.0)

#CURLOPT_MAX_RECV_SPEED_LARGE

Cap the download speed to this. See easy:UnsetOpt_Max_Recv_Speed_Large for details.

#CURLOPT_MAX_SEND_SPEED_LARGE

Cap the upload speed to this. See easy:UnsetOpt_Max_Send_Speed_Large for details.

#CURLOPT_MAXCONNECTS

Maximum number of connections in the connection pool. See easy:UnsetOpt_MaxConnects for details.

#CURLOPT_MAXFILESIZE

Maximum file size to get. See easy:UnsetOpt_MaxFileSize for details.

#CURLOPT_MAXFILESIZE_LARGE

Maximum file size to get. See easy:UnsetOpt_MaxFileSize_Large for details.

#CURLOPT_MAXREDIRS

Maximum number of redirects to follow. See easy:UnsetOpt_MaxRedirs for details.

#CURLOPT_MIME_OPTIONS

Set MIME option flags. See easy:UnsetOpt_MIME_Options for details. (V2.0)

#CURLOPT_MIMEPOST

Post/send MIME data. See easy:UnsetOpt_MIMEPost for details. (V2.0)

#CURLOPT_NETRC

Enable .netrc parsing. See easy:UnsetOpt_Netrc for details.

#CURLOPT_NETRC_FILE

.netrc file name. See easy:UnsetOpt_Netrc_File for details.

#CURLOPT_NEW_DIRECTORY_PERMS

Mode for creating new remote directories. See easy:UnsetOpt_New_Directory_Perms for details.

#CURLOPT_NEW_FILE_PERMS

Mode for creating new remote files. See easy:UnsetOpt_New_File_Perms for details.

#CURLOPT_NOBODY

Do not get the body contents. See easy:UnsetOpt_Nobody for details.

#CURLOPT_NOPROGRESS

Shut off the progress meter. See easy:UnsetOpt_NoProgress for details.

#CURLOPT_NOPROXY

Filter out hosts from proxy use. See easy:UnsetOpt_NoProxy for details.

#CURLOPT_NOSIGNAL

Do not install signal handlers. See easy:UnsetOpt_NoSignal for details.

#CURLOPT_PASSWORD

Password. See easy:UnsetOpt_Password for details.

#CURLOPT_PATH_AS_IS

Disable squashing /. See easy:UnsetOpt_Path_As_Is for details.

#CURLOPT_PINNEDPUBLICKEY

Set pinned SSL public key . See easy:UnsetOpt_PinnedPublicKey for details.

#CURLOPT_PIPEWAIT

Wait on connection to pipeline on it. See easy:UnsetOpt_PipeWait for details.

#CURLOPT_PORT

Port number to connect to. See easy:UnsetOpt_Port for details.

#CURLOPT_POST

How to act on redirects after POST. See easy:UnsetOpt_Post for details.

#CURLOPT_POSTFIELDS

Send a POST with this data. See easy:UnsetOpt_PostFields for details.

#CURLOPT_POSTQUOTE

Commands to run after transfer. See easy:UnsetOpt_PostQuote for details.

#CURLOPT_POSTREDIR

How to act on redirects after POST. See easy:UnsetOpt_PostRedir for details.

#CURLOPT_PRE_PROXY

Socks proxy to use. See easy:UnsetOpt_Pre_Proxy for details.

#CURLOPT_PREQUOTE

Commands to run just before transfer. See easy:UnsetOpt_Prequote for details.

#CURLOPT_PROGRESSFUNCTION

Callback for progress meter. See easy:UnsetOpt_ProgressFunction for details.

#CURLOPT_PROTOCOLS

Allowed protocols. See easy:UnsetOpt_Protocols for details.

#CURLOPT_PROTOCOLS_STR

Allowed protocols. See easy:UnsetOpt_Protocols_Str for details. (V2.0)

#CURLOPT_PROXY

Proxy to use. See easy:UnsetOpt_Proxy for details.

#CURLOPT_PROXY_CAINFO

Proxy CA cert bundle. See easy:UnsetOpt_Proxy_CAInfo for details.

#CURLOPT_PROXY_CAINFO_BLOB

Proxy CA cert bundle memory buffer. See easy:UnsetOpt_Proxy_CAInfo_Blob for details. (V2.0)

#CURLOPT_PROXY_CAPATH

Path to proxy CA cert bundle. See easy:UnsetOpt_Proxy_CAPath for details.

#CURLOPT_PROXY_CRLFILE

Proxy Certificate Revocation List. See easy:UnsetOpt_Proxy_CRLFile for details.

#CURLOPT_PROXY_ISSUERCERT

Proxy issuer certificate. See easy:UnsetOpt_Proxy_IssuerCert for details. (V2.0)

#CURLOPT_PROXY_ISSUERCERT_BLOB

Proxy issuer certificate memory buffer. See easy:UnsetOpt_Proxy_IssuerCert_Blob for details. (V2.0)

#CURLOPT_PROXY_KEYPASSWD

Proxy client key password. See easy:UnsetOpt_Proxy_KeyPasswd for details.

#CURLOPT_PROXY_PINNEDPUBLICKEY

Set the proxy's pinned SSL public key. See easy:UnsetOpt_Proxy_PinnedPublicKey for details.

#CURLOPT_PROXY_SERVICE_NAME

Proxy authentication service name. See easy:UnsetOpt_Proxy_Service_Name for details.

#CURLOPT_PROXY_SSLCERT

Proxy client cert. See easy:UnsetOpt_Proxy_SSLCert for details.

#CURLOPT_PROXY_SSLCERT_BLOB

Proxy client cert memory buffer. See easy:UnsetOpt_Proxy_SSLCert_Blob for details. (V2.0)

#CURLOPT_PROXY_SSLCERTTYPE

Proxy client cert type. See easy:UnsetOpt_Proxy_SSLCertType for details.

#CURLOPT_PROXY_SSL_CIPHER_LIST

Proxy ciphers to use. See easy:UnsetOpt_Proxy_SSL_Cipher_List for details.

#CURLOPT_PROXY_SSLKEY

Proxy client key. See easy:UnsetOpt_Proxy_SSLKey for details.

#CURLOPT_PROXY_SSLKEY_BLOB

Proxy client key. See easy:UnsetOpt_Proxy_SSLKey_Blob for details. (V2.0)

#CURLOPT_PROXY_SSLKEYTYPE

Proxy client key type. See easy:UnsetOpt_Proxy_SSLKeyType for details.

#CURLOPT_PROXY_SSL_OPTIONS

Control proxy SSL behavior. See easy:UnsetOpt_Proxy_SSL_Options for details.

#CURLOPT_PROXY_SSL_VERIFYHOST

Verify the host name in the proxy SSL certificate. See easy:UnsetOpt_Proxy_SSL_VerifyHost for details.

#CURLOPT_PROXY_SSL_VERIFYPEER

Verify the proxy SSL certificate. See easy:UnsetOpt_Proxy_SSL_VerifyPeer for details.

#CURLOPT_PROXY_SSLVERSION

Proxy SSL version to use. See easy:UnsetOpt_Proxy_SSLVersion for details.

#CURLOPT_PROXY_TLSAUTH_PASSWORD

Proxy TLS authentication password. See easy:UnsetOpt_Proxy_TLSAuth_Password for details.

#CURLOPT_PROXY_TLSAUTH_TYPE

Proxy TLS authentication methods. See easy:UnsetOpt_Proxy_TLSAuth_Type for details.

#CURLOPT_PROXY_TLSAUTH_USERNAME

Proxy TLS authentication user name. See easy:UnsetOpt_Proxy_TLSAuth_UserName for details.

#CURLOPT_PROXY_TRANSFER_MODE

Add transfer mode to URL over proxy. See easy:UnsetOpt_Proxy_Transfer_Mode for details.

#CURLOPT_PROXYAUTH

HTTP proxy authentication methods. See easy:UnsetOpt_ProxyAuth for details.

#CURLOPT_PROXYHEADER

Custom HTTP headers sent to proxy. See easy:UnsetOpt_ProxyHeader for details.

#CURLOPT_PROXYPASSWORD

Proxy password. See easy:UnsetOpt_ProxyPassword for details.

#CURLOPT_PROXYPORT

Proxy port to use. See easy:UnsetOpt_ProxyPort for details.

#CURLOPT_PROXYTYPE

Proxy type. See easy:UnsetOpt_ProxyType for details.

#CURLOPT_PROXYUSERNAME

Proxy user name. See easy:UnsetOpt_ProxyUserName for details.

#CURLOPT_PROXYUSERPWD

Proxy user name and password. See easy:UnsetOpt_ProxyUserPwd for details.

#CURLOPT_PUT

Issue an HTTP PUT request. See easy:UnsetOpt_Put for details.

#CURLOPT_QUICK_EXIT

To be get by toplevel tools like "curl" to skip lengthy cleanups when they are about to call exit() anyway. See easy:UnsetOpt_Quick_Exit for details. (V2.0)

#CURLOPT_QUOTE

Commands to run before transfer. See easy:UnsetOpt_Quote for details.

#CURLOPT_RANDOM_FILE

Provide source for entropy random data. See easy:UnsetOpt_Random_File for details.

#CURLOPT_RANGE

Range requests. See easy:UnsetOpt_Range for details.

#CURLOPT_READFUNCTION

Callback for reading data. See easy:UnsetOpt_ReadFunction for details.

#CURLOPT_REDIR_PROTOCOLS

Protocols to allow redirects to. See easy:UnsetOpt_Redir_Protocols for details.

#CURLOPT_REDIR_PROTOCOLS_STR

Protocols to allow redirects to. See easy:UnsetOpt_Redir_Protocols_Str for details. (V2.0)

#CURLOPT_REFERER

Referer: header. See easy:UnsetOpt_Referer for details.

#CURLOPT_REQUEST_TARGET

Set the request target. See easy:UnsetOpt_Request_Target for details.

#CURLOPT_RESOLVE

Callback to be called before a new resolve request is started. See easy:UnsetOpt_Resolve for details.

#CURLOPT_RESOLVER_START_FUNCTION

Callback to be called before a new resolve request is started. See easy:UnsetOpt_Resolver_Start_Function for details. (V2.0)

#CURLOPT_RESUME_FROM

Resume a transfer. See easy:UnsetOpt_Resume_From for details.

#CURLOPT_RESUME_FROM_LARGE

Resume a transfer. See easy:UnsetOpt_Resume_From_Large for details.

#CURLOPT_RTSP_CLIENT_CSEQ

Client CSEQ number. See easy:UnsetOpt_RTSP_Client_CSeq for details.

#CURLOPT_RTSP_REQUEST

RTSP request. See easy:UnsetOpt_RTSP_Request for details.

#CURLOPT_RTSP_SERVER_CSEQ

CSEQ number for RTSP Server->Client request. See easy:UnsetOpt_RTSP_Server_CSeq for details.

#CURLOPT_RTSP_SESSION_ID

RTSP session-id. See easy:UnsetOpt_RTSP_Session_ID for details.

#CURLOPT_RTSP_STREAM_URI

RTSP stream URI. See easy:UnsetOpt_RTSP_Stream_URI for details.

#CURLOPT_RTSP_TRANSPORT

RTSP Transport: header. See easy:UnsetOpt_RTSP_Transport for details.

#CURLOPT_SASL_AUTHZID

SASL authorization identity (identity to act as). See easy:UnsetOpt_SASL_AuthZID for details. (V2.0)

#CURLOPT_SASL_IR

Enable SASL initial response. See easy:UnsetOpt_SASL_IR for details.

#CURLOPT_SEEKFUNCTION

Callback for seek operations. See easy:UnsetOpt_SeekFunction for details.

#CURLOPT_SERVICE_NAME

Authentication service name. See easy:UnsetOpt_Service_Name for details.

#CURLOPT_SHARE

Share object to use. See easy:UnsetOpt_Share for details.

#CURLOPT_SOCKS5_AUTH

Socks5 authentication methods. See easy:UnsetOpt_Socks5_Auth for details.

#CURLOPT_SOCKS5_GSSAPI_NEC

Socks5 GSSAPI NEC mode. See easy:UnsetOpt_Socks5_GSSAPI_NEC for details.

#CURLOPT_SOCKS5_GSSAPI_SERVICE

Socks5 GSSAPI service name. See easy:UnsetOpt_Socks5_GSSAPI_Service for details.

#CURLOPT_SSH_AUTH_TYPES

SSH authentication types. See easy:UnsetOpt_SSH_Auth_Types for details.

#CURLOPT_SSH_COMPRESSION

Enable SSH compression. See easy:UnsetOpt_SSH_Compression for details. (V2.0)

#CURLOPT_SSH_HOSTKEYFUNCTION

Callback for checking host key handling. See easy:UnsetOpt_SSH_HostKeyFunction for details. (V2.0)

#CURLOPT_SSH_HOST_PUBLIC_KEY_MD5

MD5 of host's public key. See easy:UnsetOpt_SSH_Host_Public_Key_MD5 for details.

#CURLOPT_SSH_KNOWNHOSTS

File name with known hosts. See easy:UnsetOpt_SSH_KnownHosts for details.

#CURLOPT_SSH_PRIVATE_KEYFILE

File name of private key. See easy:UnsetOpt_SSH_Private_KeyFile for details.

#CURLOPT_SSH_PUBLIC_KEYFILE

File name of public key. See easy:UnsetOpt_SSH_Public_KeyFile for details.

#CURLOPT_SSLCERT

Client cert. See easy:UnsetOpt_SSLCert for details.

#CURLOPT_SSLCERT_BLOB

Client cert memory buffer. See easy:UnsetOpt_SSLCert_Blob for details. (V2.0)

#CURLOPT_SSLCERTTYPE

Client cert type. See easy:UnsetOpt_SSLCertType for details.

#CURLOPT_SSL_CIPHER_LIST

Ciphers to use. See easy:UnsetOpt_SSL_Cipher_List for details.

#CURLOPT_SSL_EC_CURVES

Set key exchange curves. See easy:UnsetOpt_SSL_EC_Curves for details. (V2.0)

#CURLOPT_SSL_ENABLE_ALPN

Enable use of ALPN. See easy:UnsetOpt_SSL_Enable_Alpn for details.

#CURLOPT_SSL_ENABLE_NPN

Enable use of NPN. See easy:UnsetOpt_SSL_Enable_Npn for details.

#CURLOPT_SSLENGINE

Use identifier with SSL engine. See easy:UnsetOpt_SSLEngine for details.

#CURLOPT_SSLENGINE_DEFAULT

Default SSL engine. See easy:UnsetOpt_SSLEngine_Default for details.

#CURLOPT_SSL_FALSESTART

Enable TLS False Start. See easy:UnsetOpt_SSL_FalseStart for details.

#CURLOPT_SSLKEY

Client key. See easy:UnsetOpt_SSLKey for details.

#CURLOPT_SSLKEY_BLOB

Client key memory buffer. See easy:UnsetOpt_SSLKey_Blob for details. (V2.0)

#CURLOPT_SSLKEYTYPE

Client key type. See easy:UnsetOpt_SSLKeyType for details.

#CURLOPT_SSL_OPTIONS

Control SSL behavior. See easy:UnsetOpt_SSL_Options for details.

#CURLOPT_SSL_SESSIONID_CACHE

Disable SSL session-id cache. See easy:UnsetOpt_SSL_SessionID_Cache for details.

#CURLOPT_SSL_VERIFYHOST

Verify the host name in the SSL certificate. See easy:UnsetOpt_SSL_VerifyHost for details.

#CURLOPT_SSL_VERIFYPEER

Verify the SSL certificate. See easy:UnsetOpt_SSL_VerifyPeer for details.

#CURLOPT_SSL_VERIFYSTATUS

Verify the SSL certificate's status. See easy:UnsetOpt_SSL_VerifyStatus for details.

#CURLOPT_SSLVERSION

SSL version to use. See easy:UnsetOpt_SSLVersion for details.

#CURLOPT_STREAM_DEPENDS

This HTTP/2 stream depends on another. See easy:UnsetOpt_Stream_Depends for details.

#CURLOPT_STREAM_DEPENDS_E

This HTTP/2 stream depends on another exclusively. See easy:UnsetOpt_Stream_Depends_e for details.

#CURLOPT_STREAM_WEIGHT

Set this HTTP/2 stream's weight. See easy:UnsetOpt_Stream_Weight for details.

#CURLOPT_SUPPRESS_CONNECT_HEADERS

Suppress proxy CONNECT response headers from user callbacks. See easy:UnsetOpt_Suppress_Connect_Headers for details.

#CURLOPT_TCP_FASTOPEN

Enable TFO, TCP Fast Open. See easy:UnsetOpt_TCP_FastOpen for details.

#CURLOPT_TCP_KEEPALIVE

Enable TCP keep-alive. See easy:UnsetOpt_TCP_KeepAlive for details.

#CURLOPT_TCP_KEEPIDLE

Idle time before sending keep-alive. See easy:UnsetOpt_TCP_KeepIdle for details.

#CURLOPT_TCP_KEEPINTVL

Interval between keep-alive probes. See easy:UnsetOpt_TCP_KeepIntvl for details.

#CURLOPT_TCP_NODELAY

Disable the Nagle algorithm. See easy:UnsetOpt_TCP_NoDelay for details.

#CURLOPT_TELNETOPTIONS

TELNET options. See easy:UnsetOpt_TelnetOptions for details.

#CURLOPT_TFTP_BLKSIZE

TFTP block size. See easy:UnsetOpt_TFTP_BlkSize for details.

#CURLOPT_TFTP_NO_OPTIONS

Do not send TFTP options requests. See easy:UnsetOpt_TFTP_No_Options for details.

#CURLOPT_TIMECONDITION

Make a time conditional request. See easy:UnsetOpt_TimeCondition for details.

#CURLOPT_TIMEOUT

Timeout for the entire request. See easy:UnsetOpt_Timeout for details.

#CURLOPT_TIMEOUT_MS

Millisecond timeout for the entire request. See easy:UnsetOpt_Timeout_MS for details.

#CURLOPT_TIMEVALUE

Time value for the time conditional request. See easy:UnsetOpt_TimeValue for details.

#CURLOPT_TIMEVALUE_LARGE

Time value for the time conditional request. See easy:UnsetOpt_TimeValue_Large for details. (V2.0)

#CURLOPT_TLS13_CIPHERS

Ciphers suites to use for TLS 1.3. See easy:UnsetOpt_TLS13_Ciphers for details. (V2.0)

#CURLOPT_TLSAUTH_PASSWORD

TLS authentication password. See easy:UnsetOpt_TLSAuth_Password for details.

#CURLOPT_TLSAUTH_TYPE

TLS authentication methods. See easy:UnsetOpt_TLSAuth_Type for details.

#CURLOPT_TLSAUTH_USERNAME

TLS authentication user name. See easy:UnsetOpt_TLSAuth_UserName for details.

#CURLOPT_TRAILERFUNCTION

Set callback for sending trailing headers. See easy:UnsetOpt_TrailerFunction for details. (V2.0)

#CURLOPT_TRANSFER_ENCODING

Request Transfer-Encoding. See easy:UnsetOpt_Transfer_Encoding for details.

#CURLOPT_TRANSFERTEXT

Use text transfer. See easy:UnsetOpt_TransferText for details.

#CURLOPT_UNIX_SOCKET_PATH

Path to a Unix domain socket. See easy:UnsetOpt_Unix_Socket_Path for details.

#CURLOPT_UNRESTRICTED_AUTH

Do not restrict authentication to original host. See easy:UnsetOpt_Unrestricted_Auth for details.

#CURLOPT_UPKEEP_INTERVAL_MS

Sets the interval at which connection upkeep are performed. See easy:UnsetOpt_Upkeep_Interval_MS for details. (V2.0)

#CURLOPT_UPLOAD

Upload data. See easy:UnsetOpt_Upload for details.

#CURLOPT_UPLOAD_BUFFERSIZE

Set upload buffer size. See easy:UnsetOpt_Upload_Buffersize for details. (V2.0)

#CURLOPT_URL

URL to work on. See easy:UnsetOpt_URL for details.

#CURLOPT_USE_SSL

Use TLS/SSL. See easy:UnsetOpt_Use_SSL for details.

#CURLOPT_USERAGENT

User-Agent: header. See easy:UnsetOpt_UserAgent for details.

#CURLOPT_USERNAME

User name. See easy:UnsetOpt_UserName for details.

#CURLOPT_USERPWD

User name and password. See easy:UnsetOpt_UserPwd for details.

#CURLOPT_VERBOSE

Display verbose information. See easy:UnsetOpt_Verbose for details.

#CURLOPT_WILDCARDMATCH

Transfer multiple files according to a file name pattern. See easy:UnsetOpt_WildcardMatch for details.

#CURLOPT_WRITEFUNCTION

Callback for writing data. See easy:UnsetOpt_WriteFunction for details.

#CURLOPT_WS_OPTIONS

Set WebSocket options. See easy:UnsetOpt_WS_Options for details. (V2.0)

#CURLOPT_XOAUTH2_BEARER

OAuth2 bearer token. See easy:UnsetOpt_XOAuth2_Bearer for details.

option

option type to unset

e:UnsetOpt(#CURLOPT_URL)
e:UnsetOpt(#CURLOPT_VERBOSE)
e:UnsetOpt(#CURLOPT_FOLLOWLOCATION)