tools/curl/consts.go

package yu_curl

const (
	GLOBAL_SSL       = 1 << 0 /* no purpose since 7.57.0 */
	GLOBAL_WIN32     = 1 << 1
	GLOBAL_ALL       = GLOBAL_SSL | GLOBAL_WIN32
	GLOBAL_NOTHING   = 0
	GLOBAL_DEFAULT   = GLOBAL_ALL
	GLOBAL_ACK_EINTR = 1 << 2
)

const (
	OPTTYPE_LONG          = 0
	OPTTYPE_OBJECTPOINT   = 10000
	OPTTYPE_FUNCTIONPOINT = 20000
	OPTTYPE_OFF_T         = 30000
	OPTTYPE_BLOB          = 40000

	/* 'char *' argument to a string with a trailing zero */
	OPTTYPE_STRINGPOINT = OPTTYPE_OBJECTPOINT

	/* 'struct curl_slist *' argument */
	OPTTYPE_SLISTPOINT = OPTTYPE_OBJECTPOINT

	/* 'void *' argument passed untouched to callback */
	OPTTYPE_CBPOINT = OPTTYPE_OBJECTPOINT

	/* 'long' argument with a set of values/bitmask */
	OPTTYPE_VALUES = OPTTYPE_LONG
)

/* These enums are for use with the CURLOPT_HTTP_VERSION option. */
const (
	HTTP_VERSION_NONE              = iota /* setting this means we don't care, and that we'd like the library to choose the best possible  for us! */
	HTTP_VERSION_1_0                      /* please use HTTP 1.0 in the request */
	HTTP_VERSION_1_1                      /* please use HTTP 1.1 in the request */
	HTTP_VERSION_2_0                      /* please use HTTP 2 in the request */
	HTTP_VERSION_2TLS                     /* use version 2 for HTTPS, version 1.1 for HTTP */
	HTTP_VERSION_2_PRIOR_KNOWLEDGE        /* please use HTTP 2 without HTTP/1.1 Upgrade */
	HTTP_VERSION_3                 = 30   /* Makes use of explicit HTTP/3 without fallback. Use CURLOPT_ALTSVC to enable HTTP/3 upgrade */
	HTTP_VERSION_LAST                     /* *ILLEGAL* http version */
)

const (
	SSLVERSION_DEFAULT = iota
	SSLVERSION_TLSv1   /* TLS 1.x */
	SSLVERSION_SSLv2
	SSLVERSION_SSLv3
	SSLVERSION_TLSv1_0
	SSLVERSION_TLSv1_1
	SSLVERSION_TLSv1_2
	SSLVERSION_TLSv1_3

	SSLVERSION_LAST /* never use, keep last */
)

const (

	/* This is the FILE * or void * the regular output should be written to. */
	OPT_WRITEDATA = OPTTYPE_CBPOINT + 1

	/* The full URL to get/put */
	OPT_URL = OPTTYPE_STRINGPOINT + 2

	/* Port number to connect to, if other than default. */
	OPT_PORT = OPTTYPE_LONG + 3

	/* Name of proxy to use. */
	OPT_PROXY = OPTTYPE_STRINGPOINT + 4

	/* "user:password;options" to use when fetching. */
	OPT_USERPWD = OPTTYPE_STRINGPOINT + 5

	/* "user:password" to use with proxy. */
	OPT_PROXYUSERPWD = OPTTYPE_STRINGPOINT + 6

	/* Range to get, specified as an ASCII string. */
	OPT_RANGE = OPTTYPE_STRINGPOINT + 7

	/* not used */

	/* Specified file stream to upload from (use as input): */
	OPT_READDATA = OPTTYPE_CBPOINT + 9

	/* Buffer to receive error messages in, must be at least CURL_ERROR_SIZE
	 * bytes big. */
	OPT_ERRORBUFFER = OPTTYPE_OBJECTPOINT + 10

	/* Function that will be called to store the output (instead of fwrite). The
	 * parameters will use fwrite() syntax, make sure to follow them. */
	OPT_WRITEFUNCTION = OPTTYPE_FUNCTIONPOINT + 11

	/* Function that will be called to read the input (instead of fread). The
	 * parameters will use fread() syntax, make sure to follow them. */
	OPT_READFUNCTION = OPTTYPE_FUNCTIONPOINT + 12

	/* Time-out the read operation after this amount of seconds */
	OPT_TIMEOUT = OPTTYPE_LONG + 13

	/* If the CURLOPT_INFILE is used, this can be used to inform libcurl about
	 * how large the file being sent really is. That allows better error
	 * checking and better verifies that the upload was successful. -1 means
	 * unknown size.
	 *
	 * For large file support, there is also a _LARGE version of the key
	 * which takes an off_t type, allowing platforms with larger off_t
	 * sizes to handle larger files.  See below for INFILESIZE_LARGE.
	 */
	OPT_INFILESIZE = OPTTYPE_LONG + 14

	/* POST static input fields. */
	OPT_POSTFIELDS = OPTTYPE_OBJECTPOINT + 15

	/* Set the referrer page (needed by some CGIs) */
	OPT_REFERER = OPTTYPE_STRINGPOINT + 16

	/* Set the FTP PORT string (interface name, named or numerical IP address)
	   Use i.e '-' to use default address. */
	OPT_FTPPORT = OPTTYPE_STRINGPOINT + 17

	/* Set the User-Agent string (examined by some CGIs) */
	OPT_USERAGENT = OPTTYPE_STRINGPOINT + 18

	/* If the download receives less than "low speed limit" bytes/second
	 * during "low speed time" seconds, the operations is aborted.
	 * You could i.e if you have a pretty high speed connection, abort if
	 * it is less than 2000 bytes/sec during 20 seconds.
	 */

	/* Set the "low speed limit" */
	OPT_LOW_SPEED_LIMIT = OPTTYPE_LONG + 19

	/* Set the "low speed time" */
	OPT_LOW_SPEED_TIME = OPTTYPE_LONG + 20

	/* Set the continuation offset.
	 *
	 * Note there is also a _LARGE version of this key which uses
	 * off_t types, allowing for large file offsets on platforms which
	 * use larger-than-32-bit off_t's.  Look below for RESUME_FROM_LARGE.
	 */
	OPT_RESUME_FROM = OPTTYPE_LONG + 21

	/* Set cookie in request: */
	OPT_COOKIE = OPTTYPE_STRINGPOINT + 22

	/* This points to a linked list of headers, struct curl_slist kind. This
	   list is also used for RTSP (in spite of its name) */
	OPT_HTTPHEADER = OPTTYPE_SLISTPOINT + 23

	/* This points to a linked list of post entries, struct curl_httppost */
	OPT_HTTPPOST = OPTTYPE_OBJECTPOINT + 24

	/* name of the file keeping your private SSL-certificate */
	OPT_SSLCERT = OPTTYPE_STRINGPOINT + 25

	/* password for the SSL or SSH private key */
	OPT_KEYPASSWD = OPTTYPE_STRINGPOINT + 26

	/* send TYPE parameter? */
	OPT_CRLF = OPTTYPE_LONG + 27

	/* send linked-list of QUOTE commands */
	OPT_QUOTE = OPTTYPE_SLISTPOINT + 28

	/* send FILE * or void * to store headers to, if you use a callback it
	   is simply passed to the callback unmodified */
	OPT_HEADERDATA = OPTTYPE_CBPOINT + 29

	/* point to a file to read the initial cookies from, also enables
	   "cookie awareness" */
	OPT_COOKIEFILE = OPTTYPE_STRINGPOINT + 31

	/* What version to specifically try to use.
	   See CURL_SSLVERSION defines below. */
	OPT_SSLVERSION = OPTTYPE_VALUES + 32

	/* What kind of HTTP time condition to use, see defines */
	OPT_TIMECONDITION = OPTTYPE_VALUES + 33

	/* Time to use with the above condition. Specified in number of seconds
	   since 1 Jan 1970 */
	OPT_TIMEVALUE = OPTTYPE_LONG + 34

	/* 35 = OBSOLETE */

	/* Custom request, for customizing the get command like
	   HTTP: DELETE, TRACE and others
	   FTP: to use a different list command
	*/
	OPT_CUSTOMREQUEST = OPTTYPE_STRINGPOINT + 36

	/* FILE handle to use instead of stderr */
	OPT_STDERR = OPTTYPE_OBJECTPOINT + 37

	/* 38 is not used */

	/* send linked-list of post-transfer QUOTE commands */
	OPT_POSTQUOTE = OPTTYPE_SLISTPOINT + 39

	/* OBSOLETE, do not use! */
	OPT_OBSOLETE40 = OPTTYPE_OBJECTPOINT + 40

	/* talk a lot */
	OPT_VERBOSE = OPTTYPE_LONG + 41

	/* throw the header out too */
	OPT_HEADER = OPTTYPE_LONG + 42

	/* shut off the progress meter */
	OPT_NOPROGRESS = OPTTYPE_LONG + 43

	/* use HEAD to get http document */
	OPT_NOBODY = OPTTYPE_LONG + 44

	/* no output on http error codes >= 400 */
	OPT_FAILONERROR = OPTTYPE_LONG + 45

	/* this is an upload */
	OPT_UPLOAD = OPTTYPE_LONG + 46

	/* HTTP POST method */
	OPT_POST = OPTTYPE_LONG + 47

	/* bare names when listing directories */
	OPT_DIRLISTONLY = OPTTYPE_LONG + 48

	/* Append instead of overwrite on upload! */
	OPT_APPEND = OPTTYPE_LONG + 50

	/* Specify whether to read the user+password from the .netrc or the URL.
	 * This must be one of the CURL_NETRC_* enums below. */
	OPT_NETRC = OPTTYPE_VALUES + 51

	// 遵循 HTTP 重定向
	OPT_FOLLOWLOCATION = OPTTYPE_LONG + 52

	/* transfer data in text/ASCII format */
	OPT_TRANSFERTEXT = OPTTYPE_LONG + 53

	/* HTTP PUT */
	OPT_PUT = OPTTYPE_LONG + 54

	/* 55 = OBSOLETE */

	/* DEPRECATED
	 * Function that will be called instead of the internal progress display
	 * function. This function should be defined as the curl_progress_callback
	 * prototype defines. */
	OPT_PROGRESSFUNCTION = OPTTYPE_FUNCTIONPOINT + 56

	/* Data passed to the CURLOPT_PROGRESSFUNCTION and CURLOPT_XFERINFOFUNCTION
	   callbacks */
	OPT_XFERINFODATA = OPTTYPE_CBPOINT + 57
	OPT_PROGRESSDATA = OPT_XFERINFODATA

	/* We want the referrer field set automatically when following locations */
	OPT_AUTOREFERER = OPTTYPE_LONG + 58

	/* Port of the proxy, can be set in the proxy string as well with:
	   "[host]:[port]" */
	OPT_PROXYPORT = OPTTYPE_LONG + 59

	/* size of the POST input data, if strlen() is not good to use */
	OPT_POSTFIELDSIZE = OPTTYPE_LONG + 60

	/* tunnel non-http operations through a HTTP proxy */
	OPT_HTTPPROXYTUNNEL = OPTTYPE_LONG + 61

	/* Set the interface string to use as outgoing network interface */
	OPT_INTERFACE = OPTTYPE_STRINGPOINT + 62

	/* Set the krb4/5 security level, this also enables krb4/5 awareness.  This
	 * is a string, 'clear', 'safe', 'confidential' or 'private'.  If the string
	 * is set but doesn't match one of these, 'private' will be used.  */
	OPT_KRBLEVEL = OPTTYPE_STRINGPOINT + 63

	/* Set if we should verify the peer in ssl handshake, set 1 to verify. */
	OPT_SSL_VERIFYPEER = OPTTYPE_LONG + 64

	/* The CApath or CAfile used to validate the peer certificate
	   this option is used only if SSL_VERIFYPEER is true */
	OPT_CAINFO = OPTTYPE_STRINGPOINT + 65

	/* 66 = OBSOLETE */
	/* 67 = OBSOLETE */

	/* Maximum number of http redirects to follow */
	OPT_MAXREDIRS = OPTTYPE_LONG + 68

	/* Pass a long set to 1 to get the date of the requested document (if
	   possible)! Pass a zero to shut it off. */
	OPT_FILETIME = OPTTYPE_LONG + 69

	/* This points to a linked list of telnet options */
	OPT_TELNETOPTIONS = OPTTYPE_SLISTPOINT + 70

	/* Max amount of cached alive connections */
	OPT_MAXCONNECTS = OPTTYPE_LONG + 71

	/* OBSOLETE, do not use! */
	OPT_OBSOLETE72 = OPTTYPE_LONG + 72

	/* 73 = OBSOLETE */

	/* Set to explicitly use a new connection for the upcoming transfer.
	   Do not use this unless you're absolutely sure of this, as it makes the
	   operation slower and is less friendly for the network. */
	OPT_FRESH_CONNECT = OPTTYPE_LONG + 74

	/* Set to explicitly forbid the upcoming transfer's connection to be re-used
	   when done. Do not use this unless you're absolutely sure of this, as it
	   makes the operation slower and is less friendly for the network. */
	OPT_FORBID_REUSE = OPTTYPE_LONG + 75

	/* Set to a file name that contains random data for libcurl to use to
	   seed the random engine when doing SSL connects. */
	OPT_RANDOM_FILE = OPTTYPE_STRINGPOINT + 76

	/* Set to the Entropy Gathering Daemon socket pathname */
	OPT_EGDSOCKET = OPTTYPE_STRINGPOINT + 77

	/* Time-out connect operations after this amount of seconds, if connects are
	   OK within this time, then fine... This only aborts the connect phase. */
	OPT_CONNECTTIMEOUT = OPTTYPE_LONG + 78

	/* Function that will be called to store headers (instead of fwrite). The
	 * parameters will use fwrite() syntax, make sure to follow them. */
	OPT_HEADERFUNCTION = OPTTYPE_FUNCTIONPOINT + 79

	/* Set this to force the HTTP request to get back to GET. Only really usable
	   if POST, PUT or a custom request have been used first.
	*/
	OPT_HTTPGET = OPTTYPE_LONG + 80

	/* Set if we should verify the Common name from the peer certificate in ssl
	 * handshake, set 1 to check existence, 2 to ensure that it matches the
	 * provided hostname. */
	OPT_SSL_VERIFYHOST = OPTTYPE_LONG + 81

	/* Specify which file name to write all known cookies in after completed
	   operation. Set file name to "-" (dash) to make it go to stdout. */
	OPT_COOKIEJAR = OPTTYPE_STRINGPOINT + 82

	/* Specify which SSL ciphers to use */
	OPT_SSL_CIPHER_LIST = OPTTYPE_STRINGPOINT + 83

	/* Specify which HTTP version to use! This must be set to one of the
	   HTTP_VERSION* enums set below. */
	OPT_HTTP_VERSION = OPTTYPE_VALUES + 84

	/* Specifically switch on or off the FTP engine's use of the EPSV command. By
	   default, that one will always be attempted before the more traditional
	   PASV command. */
	OPT_FTP_USE_EPSV = OPTTYPE_LONG + 85

	/* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") */
	OPT_SSLCERTTYPE = OPTTYPE_STRINGPOINT + 86

	/* name of the file keeping your private SSL-key */
	OPT_SSLKEY = OPTTYPE_STRINGPOINT + 87

	/* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") */
	OPT_SSLKEYTYPE = OPTTYPE_STRINGPOINT + 88

	/* crypto engine for the SSL-sub system */
	OPT_SSLENGINE = OPTTYPE_STRINGPOINT + 89

	/* set the crypto engine for the SSL-sub system as default
	   the param has no meaning...
	*/
	OPT_SSLENGINE_DEFAULT = OPTTYPE_LONG + 90

	/* Non-zero value means to use the global dns cache */
	/* DEPRECATED, do not use! */
	OPT_DNS_USE_GLOBAL_CACHE = OPTTYPE_LONG + 91

	/* DNS cache timeout */
	OPT_DNS_CACHE_TIMEOUT = OPTTYPE_LONG + 92

	/* send linked-list of pre-transfer QUOTE commands */
	OPT_PREQUOTE = OPTTYPE_SLISTPOINT + 93

	/* set the debug function */
	OPT_DEBUGFUNCTION = OPTTYPE_FUNCTIONPOINT + 94

	/* set the data for the debug function */
	OPT_DEBUGDATA = OPTTYPE_CBPOINT + 95

	/* mark this as start of a cookie session */
	OPT_COOKIESESSION = OPTTYPE_LONG + 96

	/* The CApath directory used to validate the peer certificate
	   this option is used only if SSL_VERIFYPEER is true */
	OPT_CAPATH = OPTTYPE_STRINGPOINT + 97

	/* Instruct libcurl to use a smaller receive buffer */
	OPT_BUFFERSIZE = OPTTYPE_LONG + 98

	/* Instruct libcurl to not use any signal/alarm handlers, even when using
	   timeouts. This option is useful for multi-threaded applications.
	   See libcurl-the-guide for more background information. */
	OPT_NOSIGNAL = OPTTYPE_LONG + 99

	/* Provide a CURLShare for mutexing non-ts data */
	OPT_SHARE = OPTTYPE_OBJECTPOINT + 100

	/* indicates type of proxy. accepted values are CURLPROXY_HTTP (default
	   CURLPROXY_HTTPS         =                 PROXY_SOCKS4         =                 PROXY_SOCKS4A and
	   CURLPROXY_SOCKS5. */
	OPT_PROXYTYPE = OPTTYPE_VALUES + 101

	/* Set the Accept-Encoding string. Use this to tell a server you would like
	   the response to be compressed. Before 7.21.6, this was known as
	   CURLOPT_ENCODING */
	OPT_ACCEPT_ENCODING = OPTTYPE_STRINGPOINT + 102

	/* Set pointer to private data */
	OPT_PRIVATE = OPTTYPE_OBJECTPOINT + 103

	/* Set aliases for HTTP 200 in the HTTP Response header */
	OPT_HTTP200ALIASES = OPTTYPE_SLISTPOINT + 104

	/* Continue to send authentication (user+password) when following locations,
	   even when hostname changed. This can potentially send off the name
	   and password to whatever host the server decides. */
	OPT_UNRESTRICTED_AUTH = OPTTYPE_LONG + 105

	/* Specifically switch on or off the FTP engine's use of the EPRT command (
	   it also disables the LPRT attempt). By default, those ones will always be
	   attempted before the good old traditional PORT command. */
	OPT_FTP_USE_EPRT = OPTTYPE_LONG + 106

	/* Set this to a bitmask value to enable the particular authentications
	   methods you like. Use this in combination with CURLOPT_USERPWD.
	   Note that setting multiple bits may cause extra network round-trips. */
	OPT_HTTPAUTH = OPTTYPE_VALUES + 107

	/* Set the ssl context callback function, currently only for OpenSSL or
	   WolfSSL ssl_ctx, or mbedTLS mbedtls_ssl_config in the second argument.
	   The function must match the curl_ssl_ctx_callback prototype. */
	OPT_SSL_CTX_FUNCTION = OPTTYPE_FUNCTIONPOINT + 108

	/* Set the userdata for the ssl context callback function's third
	   argument */
	OPT_SSL_CTX_DATA = OPTTYPE_CBPOINT + 109

	/* FTP Option that causes missing dirs to be created on the remote server.
	   In 7.19.4 we introduced the convenience enums for this option using the
	   CURLFTP_CREATE_DIR prefix.
	*/
	OPT_FTP_CREATE_MISSING_DIRS = OPTTYPE_LONG + 110

	/* Set this to a bitmask value to enable the particular authentications
	   methods you like. Use this in combination with CURLOPT_PROXYUSERPWD.
	   Note that setting multiple bits may cause extra network round-trips. */
	OPT_PROXYAUTH = OPTTYPE_VALUES + 111

	/* Option that changes the timeout, in seconds, associated with getting a
	   response.  This is different from transfer timeout time and essentially
	   places a demand on the server to acknowledge commands in a timely
	   manner. For FTP, SMTP, IMAP and POP3. */
	OPT_SERVER_RESPONSE_TIMEOUT = OPTTYPE_LONG + 112

	/* Set this option to one of the CURL_IPRESOLVE_* defines (see below) to
	   tell libcurl to use those IP versions only. This only has effect on
	   systems with support for more than one, i.e IPv4 _and_ IPv6. */
	OPT_IPRESOLVE = OPTTYPE_VALUES + 113

	/* Set this option to limit the size of a file that will be downloaded from
	   an HTTP or FTP server.

	   Note there is also _LARGE version which adds large file support for
	   platforms which have larger off_t sizes.  See MAXFILESIZE_LARGE below. */
	OPT_MAXFILESIZE = OPTTYPE_LONG + 114

	/* See the comment for INFILESIZE above, but in short, specifies
	 * the size of the file being uploaded.  -1 means unknown.
	 */
	OPT_INFILESIZE_LARGE = OPTTYPE_OFF_T + 115

	/* Sets the continuation offset.  There is also a CURLOPTTYPE_LONG version
	 * of this; look above for RESUME_FROM.
	 */
	OPT_RESUME_FROM_LARGE = OPTTYPE_OFF_T + 116

	/* Sets the maximum size of data that will be downloaded from
	 * an HTTP or FTP server.  See MAXFILESIZE above for the LONG version.
	 */
	OPT_MAXFILESIZE_LARGE = OPTTYPE_OFF_T + 117

	/* Set this option to the file name of your .netrc file you want libcurl
	   to parse (using the CURLOPT_NETRC option). If not set, libcurl will do
	   a poor attempt to find the user's home directory and check for a .netrc
	   file in there. */
	OPT_NETRC_FILE = OPTTYPE_STRINGPOINT + 118

	/* Enable SSL/TLS for FTP, pick one of:
	   CURLUSESSL_TRY     - try using SSL, proceed anyway otherwise
	   CURLUSESSL_CONTROL - SSL for the control connection or fail
	   CURLUSESSL_ALL     - SSL for all communication or fail
	*/
	OPT_USE_SSL = OPTTYPE_VALUES + 119

	/* The _LARGE version of the standard POSTFIELDSIZE option */
	OPT_POSTFIELDSIZE_LARGE = OPTTYPE_OFF_T + 120

	/* Enable/disable the TCP Nagle algorithm */
	OPT_TCP_NODELAY = OPTTYPE_LONG + 121

	/* 122 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
	/* 123 OBSOLETE. Gone in 7.16.0 */
	/* 124 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
	/* 125 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
	/* 126 OBSOLETE, used in 7.12.3. Gone in 7.13.0 */
	/* 127 OBSOLETE. Gone in 7.16.0 */
	/* 128 OBSOLETE. Gone in 7.16.0 */

	/* When FTP over SSL/TLS is selected (with CURLOPT_USE_SSL this option
	   can be used to change libcurl's default action which is to first try
	   "AUTH SSL" and then "AUTH TLS" in this order, and proceed when a OK
	   response has been received.

	   Available parameters are:
	   CURLFTPAUTH_DEFAULT - let libcurl decide
	   CURLFTPAUTH_SSL     - try "AUTH SSL" first, then TLS
	   CURLFTPAUTH_TLS     - try "AUTH TLS" first, then SSL
	*/
	OPT_FTPSSLAUTH = OPTTYPE_VALUES + 129

	OPT_IOCTLFUNCTION = OPTTYPE_FUNCTIONPOINT + 130
	OPT_IOCTLDATA     = OPTTYPE_CBPOINT + 131

	/* 132 OBSOLETE. Gone in 7.16.0 */
	/* 133 OBSOLETE. Gone in 7.16.0 */

	/* null-terminated string for pass on to the FTP server when asked for
	   "account" info */
	OPT_FTP_ACCOUNT = OPTTYPE_STRINGPOINT + 134

	/* feed cookie into cookie engine */
	OPT_COOKIELIST = OPTTYPE_STRINGPOINT + 135

	/* ignore Content-Length */
	OPT_IGNORE_CONTENT_LENGTH = OPTTYPE_LONG + 136

	/* Set to non-zero to skip the IP address received in a 227 PASV FTP server
	   response. Typically used for FTP-SSL purposes but is not restricted to
	   that. libcurl will then instead use the same IP address it used for the
	   control connection. */
	OPT_FTP_SKIP_PASV_IP = OPTTYPE_LONG + 137

	/* Select "file method" to use when doing FTP, see the curl_ftpmethod
	   above. */
	OPT_FTP_FILEMETHOD = OPTTYPE_VALUES + 138

	/* Local port number to bind the socket to */
	OPT_LOCALPORT = OPTTYPE_LONG + 139

	/* Number of ports to try, including the first one set with LOCALPORT.
	   Thus, setting it to 1 will make no additional attempts but the first.
	*/
	OPT_LOCALPORTRANGE = OPTTYPE_LONG + 140

	/* no transfer, set up connection and let application use the socket by
	   extracting it with CURLINFO_LASTSOCKET */
	OPT_CONNECT_ONLY = OPTTYPE_LONG + 141

	/* Function that will be called to convert from the
	   network encoding (instead of using the iconv calls in libcurl) */
	OPT_CONV_FROM_NETWORK_FUNCTION = OPTTYPE_FUNCTIONPOINT + 142

	/* Function that will be called to convert to the
	   network encoding (instead of using the iconv calls in libcurl) */
	OPT_CONV_TO_NETWORK_FUNCTION = OPTTYPE_FUNCTIONPOINT + 143

	/* Function that will be called to convert from UTF8
	   (instead of using the iconv calls in libcurl)
	   Note that this is used only for SSL certificate processing */
	OPT_CONV_FROM_UTF8_FUNCTION = OPTTYPE_FUNCTIONPOINT + 144

	/* if the connection proceeds too quickly then need to slow it down */
	/* limit-rate: maximum number of bytes per second to send or receive */
	OPT_MAX_SEND_SPEED_LARGE = OPTTYPE_OFF_T + 145
	OPT_MAX_RECV_SPEED_LARGE = OPTTYPE_OFF_T + 146

	/* Pointer to command string to send if USER/PASS fails. */
	OPT_FTP_ALTERNATIVE_TO_USER = OPTTYPE_STRINGPOINT + 147

	/* callback function for setting socket options */
	OPT_SOCKOPTFUNCTION = OPTTYPE_FUNCTIONPOINT + 148
	OPT_SOCKOPTDATA     = OPTTYPE_CBPOINT + 149

	/* set to 0 to disable session ID re-use for this transfer, default is
	   enabled (== 1) */
	OPT_SSL_SESSIONID_CACHE = OPTTYPE_LONG + 150

	/* allowed SSH authentication methods */
	OPT_SSH_AUTH_TYPES = OPTTYPE_VALUES + 151

	/* Used by scp/sftp to do public/private key authentication */
	OPT_SSH_PUBLIC_KEYFILE  = OPTTYPE_STRINGPOINT + 152
	OPT_SSH_PRIVATE_KEYFILE = OPTTYPE_STRINGPOINT + 153

	/* Send CCC (Clear Command Channel) after authentication */
	OPT_FTP_SSL_CCC = OPTTYPE_LONG + 154

	/* Same as TIMEOUT and CONNECTTIMEOUT, but with ms resolution */
	OPT_TIMEOUT_MS        = OPTTYPE_LONG + 155
	OPT_CONNECTTIMEOUT_MS = OPTTYPE_LONG + 156

	/* set to zero to disable the libcurl's decoding and thus pass the raw body
	   data to the application even when it is encoded/compressed */
	OPT_HTTP_TRANSFER_DECODING = OPTTYPE_LONG + 157
	OPT_HTTP_CONTENT_DECODING  = OPTTYPE_LONG + 158

	/* Permission used when creating new files and directories on the remote
	   server for protocols that support it, SFTP/SCP/FILE */
	OPT_NEW_FILE_PERMS      = OPTTYPE_LONG + 159
	OPT_NEW_DIRECTORY_PERMS = OPTTYPE_LONG + 160

	/* Set the behavior of POST when redirecting. Values must be set to one
	   of CURL_REDIR* defines below. This used to be called CURLOPT_POST301 */
	OPT_POSTREDIR = OPTTYPE_VALUES + 161

	/* used by scp/sftp to verify the host's public key */
	OPT_SSH_HOST_PUBLIC_KEY_MD5 = OPTTYPE_STRINGPOINT + 162

	/* Callback function for opening socket (instead of socket(2)). Optionally,
	   callback is able change the address or refuse to connect returning
	   CURL_SOCKET_BAD.  The callback should have type
	   curl_opensocket_callback */
	OPT_OPENSOCKETFUNCTION = OPTTYPE_FUNCTIONPOINT + 163
	OPT_OPENSOCKETDATA     = OPTTYPE_CBPOINT + 164

	/* POST volatile input fields. */
	OPT_COPYPOSTFIELDS = OPTTYPE_OBJECTPOINT + 165

	/* set transfer mode (;type=<a|i>) when doing FTP via an HTTP proxy */
	OPT_PROXY_TRANSFER_MODE = OPTTYPE_LONG + 166

	/* Callback function for seeking in the input stream */
	OPT_SEEKFUNCTION = OPTTYPE_FUNCTIONPOINT + 167
	OPT_SEEKDATA     = OPTTYPE_CBPOINT + 168

	/* CRL file */
	OPT_CRLFILE = OPTTYPE_STRINGPOINT + 169

	/* Issuer certificate */
	OPT_ISSUERCERT = OPTTYPE_STRINGPOINT + 170

	/* (IPv6) Address scope */
	OPT_ADDRESS_SCOPE = OPTTYPE_LONG + 171

	/* Collect certificate chain info and allow it to get retrievable with
	   CURLINFO_CERTINFO after the transfer is complete. */
	OPT_CERTINFO = OPTTYPE_LONG + 172

	/* "name" and "pwd" to use when fetching. */
	OPT_USERNAME = OPTTYPE_STRINGPOINT + 173
	OPT_PASSWORD = OPTTYPE_STRINGPOINT + 174

	/* "name" and "pwd" to use with Proxy when fetching. */
	OPT_PROXYUSERNAME = OPTTYPE_STRINGPOINT + 175
	OPT_PROXYPASSWORD = OPTTYPE_STRINGPOINT + 176

	/* Comma separated list of hostnames defining no-proxy zones. These should
	   match both hostnames directly, and hostnames within a domain. For
	   example, local.com will match local.com and www.local.com, but NOT
	   notlocal.com or www.notlocal.com. For compatibility with other
	   implementations of this, .local.com will be considered to be the same as
	   local.com. A single * is the only valid wildcard, and effectively
	   disables the use of proxy. */
	OPT_NOPROXY = OPTTYPE_STRINGPOINT + 177

	/* block size for TFTP transfers */
	OPT_TFTP_BLKSIZE = OPTTYPE_LONG + 178

	/* Socks Service */
	/* DEPRECATED, do not use! */
	OPT_SOCKS5_GSSAPI_SERVICE = OPTTYPE_STRINGPOINT + 179

	/* Socks Service */
	OPT_SOCKS5_GSSAPI_NEC = OPTTYPE_LONG + 180

	/* set the bitmask for the protocols that are allowed to be used for the
	   transfer, which thus helps the app which takes URLs from users or other
	   external inputs and want to restrict what protocol(s) to deal
	   with. Defaults to CURLPROTO_ALL. */
	OPT_PROTOCOLS = OPTTYPE_LONG + 181

	/* set the bitmask for the protocols that libcurl is allowed to follow to,
	   as a subset of the CURLOPT_PROTOCOLS ones. That means the protocol needs
	   to be set in both bitmasks to be allowed to get redirected to. */
	OPT_REDIR_PROTOCOLS = OPTTYPE_LONG + 182

	/* set the SSH knownhost file name to use */
	OPT_SSH_KNOWNHOSTS = OPTTYPE_STRINGPOINT + 183

	/* set the SSH host key callback, must point to a curl_sshkeycallback
	   function */
	OPT_SSH_KEYFUNCTION = OPTTYPE_FUNCTIONPOINT + 184

	/* set the SSH host key callback custom pointer */
	OPT_SSH_KEYDATA = OPTTYPE_CBPOINT + 185

	/* set the SMTP mail originator */
	OPT_MAIL_FROM = OPTTYPE_STRINGPOINT + 186

	/* set the list of SMTP mail receiver(s) */
	OPT_MAIL_RCPT = OPTTYPE_SLISTPOINT + 187

	/* FTP: send PRET before PASV */
	OPT_FTP_USE_PRET = OPTTYPE_LONG + 188

	/* RTSP request method (OPTIONS, SETUP, PLAY, etc...) */
	OPT_RTSP_REQUEST = OPTTYPE_VALUES + 189

	/* The RTSP session identifier */
	OPT_RTSP_SESSION_ID = OPTTYPE_STRINGPOINT + 190

	/* The RTSP stream URI */
	OPT_RTSP_STREAM_URI = OPTTYPE_STRINGPOINT + 191

	/* The Transport: header to use in RTSP requests */
	OPT_RTSP_TRANSPORT = OPTTYPE_STRINGPOINT + 192

	/* Manually initialize the client RTSP CSeq for this handle */
	OPT_RTSP_CLIENT_CSEQ = OPTTYPE_LONG + 193

	/* Manually initialize the server RTSP CSeq for this handle */
	OPT_RTSP_SERVER_CSEQ = OPTTYPE_LONG + 194

	/* The stream to pass to INTERLEAVEFUNCTION. */
	OPT_INTERLEAVEDATA = OPTTYPE_CBPOINT + 195

	/* Let the application define a custom write method for RTP data */
	OPT_INTERLEAVEFUNCTION = OPTTYPE_FUNCTIONPOINT + 196

	/* Turn on wildcard matching */
	OPT_WILDCARDMATCH = OPTTYPE_LONG + 197

	/* Directory matching callback called before downloading of an
	   individual file (chunk) started */
	OPT_CHUNK_BGN_FUNCTION = OPTTYPE_FUNCTIONPOINT + 198

	/* Directory matching callback called after the file (chunk)
	   was downloaded, or skipped */
	OPT_CHUNK_END_FUNCTION = OPTTYPE_FUNCTIONPOINT + 199

	/* Change match (fnmatch-like) callback for wildcard matching */
	OPT_FNMATCH_FUNCTION = OPTTYPE_FUNCTIONPOINT + 200

	/* Let the application define custom chunk data pointer */
	OPT_CHUNK_DATA = OPTTYPE_CBPOINT + 201

	/* FNMATCH_FUNCTION user pointer */
	OPT_FNMATCH_DATA = OPTTYPE_CBPOINT + 202

	/* send linked-list of name:port:address sets */
	OPT_RESOLVE = OPTTYPE_SLISTPOINT + 203

	/* Set a username for authenticated TLS */
	OPT_TLSAUTH_USERNAME = OPTTYPE_STRINGPOINT + 204

	/* Set a password for authenticated TLS */
	OPT_TLSAUTH_PASSWORD = OPTTYPE_STRINGPOINT + 205

	/* Set authentication type for authenticated TLS */
	OPT_TLSAUTH_TYPE = OPTTYPE_STRINGPOINT + 206

	/* Set to 1 to enable the "TE:" header in HTTP requests to ask for
	   compressed transfer-encoded responses. Set to 0 to disable the use of TE:
	   in outgoing requests. The current default is 0, but it might change in a
	   future libcurl release.

	   libcurl will ask for the compressed methods it knows of, and if that
	   isn't any, it will not ask for transfer-encoding at all even if this
	   option is set to 1.

	*/
	OPT_TRANSFER_ENCODING = OPTTYPE_LONG + 207

	/* Callback function for closing socket (instead of close(2)). The callback
	   should have type curl_closesocket_callback */
	OPT_CLOSESOCKETFUNCTION = OPTTYPE_FUNCTIONPOINT + 208
	OPT_CLOSESOCKETDATA     = OPTTYPE_CBPOINT + 209

	/* allow GSSAPI credential delegation */
	OPT_GSSAPI_DELEGATION = OPTTYPE_VALUES + 210

	/* Set the name servers to use for DNS resolution */
	OPT_DNS_SERVERS = OPTTYPE_STRINGPOINT + 211

	/* Time-out accept operations (currently for FTP only) after this amount
	   of milliseconds. */
	OPT_ACCEPTTIMEOUT_MS = OPTTYPE_LONG + 212

	/* Set TCP keepalive */
	OPT_TCP_KEEPALIVE = OPTTYPE_LONG + 213

	/* non-universal keepalive knobs (Linux, AIX, HP-UX, more) */
	OPT_TCP_KEEPIDLE  = OPTTYPE_LONG + 214
	OPT_TCP_KEEPINTVL = OPTTYPE_LONG + 215

	/* Enable/disable specific SSL features with a bitmask, see CURLSSLOPT_* */
	OPT_SSL_OPTIONS = OPTTYPE_VALUES + 216

	/* Set the SMTP auth originator */
	OPT_MAIL_AUTH = OPTTYPE_STRINGPOINT + 217

	/* Enable/disable SASL initial response */
	OPT_SASL_IR = OPTTYPE_LONG + 218

	/* Function that will be called instead of the internal progress display
	 * function. This function should be defined as the curl_xferinfo_callback
	 * prototype defines. (Deprecates CURLOPT_PROGRESSFUNCTION) */
	OPT_XFERINFOFUNCTION = OPTTYPE_FUNCTIONPOINT + 219

	/* The XOAUTH2 bearer token */
	OPT_XOAUTH2_BEARER = OPTTYPE_STRINGPOINT + 220

	/* Set the interface string to use as outgoing network
	 * interface for DNS requests.
	 * Only supported by the c-ares DNS backend */
	OPT_DNS_INTERFACE = OPTTYPE_STRINGPOINT + 221

	/* Set the local IPv4 address to use for outgoing DNS requests.
	 * Only supported by the c-ares DNS backend */
	OPT_DNS_LOCAL_IP4 = OPTTYPE_STRINGPOINT + 222

	/* Set the local IPv6 address to use for outgoing DNS requests.
	 * Only supported by the c-ares DNS backend */
	OPT_DNS_LOCAL_IP6 = OPTTYPE_STRINGPOINT + 223

	/* Set authentication options directly */
	OPT_LOGIN_OPTIONS = OPTTYPE_STRINGPOINT + 224

	/* Enable/disable TLS NPN extension (http2 over ssl might fail without) */
	OPT_SSL_ENABLE_NPN = OPTTYPE_LONG + 225

	/* Enable/disable TLS ALPN extension (http2 over ssl might fail without) */
	OPT_SSL_ENABLE_ALPN = OPTTYPE_LONG + 226

	/* Time to wait for a response to a HTTP request containing an
	 * Expect: 100-continue header before sending the data anyway. */
	OPT_EXPECT_100_TIMEOUT_MS = OPTTYPE_LONG + 227

	/* This points to a linked list of headers used for proxy requests only,
	   struct curl_slist kind */
	OPT_PROXYHEADER = OPTTYPE_SLISTPOINT + 228

	/* Pass in a bitmask of "header options" */
	OPT_HEADEROPT = OPTTYPE_VALUES + 229

	/* The public key in DER form used to validate the peer public key
	   this option is used only if SSL_VERIFYPEER is true */
	OPT_PINNEDPUBLICKEY = OPTTYPE_STRINGPOINT + 230

	/* Path to Unix domain socket */
	OPT_UNIX_SOCKET_PATH = OPTTYPE_STRINGPOINT + 231

	/* Set if we should verify the certificate status. */
	OPT_SSL_VERIFYSTATUS = OPTTYPE_LONG + 232

	/* Set if we should enable TLS false start. */
	OPT_SSL_FALSESTART = OPTTYPE_LONG + 233

	/* Do not squash dot-dot sequences */
	OPT_PATH_AS_IS = OPTTYPE_LONG + 234

	/* Proxy Service Name */
	OPT_PROXY_SERVICE_NAME = OPTTYPE_STRINGPOINT + 235

	/* Service Name */
	OPT_SERVICE_NAME = OPTTYPE_STRINGPOINT + 236

	/* Wait/don't wait for pipe/mutex to clarify */
	OPT_PIPEWAIT = OPTTYPE_LONG + 237

	/* Set the protocol used when curl is given a URL without a protocol */
	OPT_DEFAULT_PROTOCOL = OPTTYPE_STRINGPOINT + 238

	/* Set stream weight, 1 - 256 (default is 16) */
	OPT_STREAM_WEIGHT = OPTTYPE_LONG + 239

	/* Set stream dependency on another CURL handle */
	OPT_STREAM_DEPENDS = OPTTYPE_OBJECTPOINT + 240

	/* Set E-xclusive stream dependency on another CURL handle */
	OPT_STREAM_DEPENDS_E = OPTTYPE_OBJECTPOINT + 241

	/* Do not send any tftp option requests to the server */
	OPT_TFTP_NO_OPTIONS = OPTTYPE_LONG + 242

	/* Linked-list of host:port:connect-to-host:connect-to-port,
	   overrides the URL's host:port (only for the network layer) */
	OPT_CONNECT_TO = OPTTYPE_SLISTPOINT + 243

	/* Set TCP Fast Open */
	OPT_TCP_FASTOPEN = OPTTYPE_LONG + 244

	/* Continue to send data if the server responds early with an
	 * HTTP status code >= 300 */
	OPT_KEEP_SENDING_ON_ERROR = OPTTYPE_LONG + 245

	/* The CApath or CAfile used to validate the proxy certificate
	   this option is used only if PROXY_SSL_VERIFYPEER is true */
	OPT_PROXY_CAINFO = OPTTYPE_STRINGPOINT + 246

	/* The CApath directory used to validate the proxy certificate
	   this option is used only if PROXY_SSL_VERIFYPEER is true */
	OPT_PROXY_CAPATH = OPTTYPE_STRINGPOINT + 247

	/* Set if we should verify the proxy in ssl handshake,
	   set 1 to verify. */
	OPT_PROXY_SSL_VERIFYPEER = OPTTYPE_LONG + 248

	/* Set if we should verify the Common name from the proxy certificate in ssl
	 * handshake, set 1 to check existence, 2 to ensure that it matches
	 * the provided hostname. */
	OPT_PROXY_SSL_VERIFYHOST = OPTTYPE_LONG + 249

	/* What version to specifically try to use for proxy.
	   See CURL_SSLVERSION defines below. */
	OPT_PROXY_SSLVERSION = OPTTYPE_VALUES + 250

	/* Set a username for authenticated TLS for proxy */
	OPT_PROXY_TLSAUTH_USERNAME = OPTTYPE_STRINGPOINT + 251

	/* Set a password for authenticated TLS for proxy */
	OPT_PROXY_TLSAUTH_PASSWORD = OPTTYPE_STRINGPOINT + 252

	/* Set authentication type for authenticated TLS for proxy */
	OPT_PROXY_TLSAUTH_TYPE = OPTTYPE_STRINGPOINT + 253

	/* name of the file keeping your private SSL-certificate for proxy */
	OPT_PROXY_SSLCERT = OPTTYPE_STRINGPOINT + 254

	/* type of the file keeping your SSL-certificate ("DER", "PEM", "ENG") for
	   proxy */
	OPT_PROXY_SSLCERTTYPE = OPTTYPE_STRINGPOINT + 255

	/* name of the file keeping your private SSL-key for proxy */
	OPT_PROXY_SSLKEY = OPTTYPE_STRINGPOINT + 256

	/* type of the file keeping your private SSL-key ("DER", "PEM", "ENG") for
	   proxy */
	OPT_PROXY_SSLKEYTYPE = OPTTYPE_STRINGPOINT + 257

	/* password for the SSL private key for proxy */
	OPT_PROXY_KEYPASSWD = OPTTYPE_STRINGPOINT + 258

	/* Specify which SSL ciphers to use for proxy */
	OPT_PROXY_SSL_CIPHER_LIST = OPTTYPE_STRINGPOINT + 259

	/* CRL file for proxy */
	OPT_PROXY_CRLFILE = OPTTYPE_STRINGPOINT + 260

	/* Enable/disable specific SSL features with a bitmask for proxy, see
	   CURLSSLOPT_* */
	OPT_PROXY_SSL_OPTIONS = OPTTYPE_LONG + 261

	/* Name of pre proxy to use. */
	OPT_PRE_PROXY = OPTTYPE_STRINGPOINT + 262

	/* The public key in DER form used to validate the proxy public key
	   this option is used only if PROXY_SSL_VERIFYPEER is true */
	OPT_PROXY_PINNEDPUBLICKEY = OPTTYPE_STRINGPOINT + 263

	/* Path to an abstract Unix domain socket */
	OPT_ABSTRACT_UNIX_SOCKET = OPTTYPE_STRINGPOINT + 264

	/* Suppress proxy CONNECT response headers from user callbacks */
	OPT_SUPPRESS_CONNECT_HEADERS = OPTTYPE_LONG + 265

	/* The request target, instead of extracted from the URL */
	OPT_REQUEST_TARGET = OPTTYPE_STRINGPOINT + 266

	/* bitmask of allowed auth methods for connections to SOCKS5 proxies */
	OPT_SOCKS5_AUTH = OPTTYPE_LONG + 267

	/* Enable/disable SSH compression */
	OPT_SSH_COMPRESSION = OPTTYPE_LONG + 268

	/* Post MIME data. */
	OPT_MIMEPOST = OPTTYPE_OBJECTPOINT + 269

	/* Time to use with the CURLOPT_TIMECONDITION. Specified in number of
	   seconds since 1 Jan 1970. */
	OPT_TIMEVALUE_LARGE = OPTTYPE_OFF_T + 270

	/* Head start in milliseconds to give happy eyeballs. */
	OPT_HAPPY_EYEBALLS_TIMEOUT_MS = OPTTYPE_LONG + 271

	/* Function that will be called before a resolver request is made */
	OPT_RESOLVER_START_FUNCTION = OPTTYPE_FUNCTIONPOINT + 272

	/* User data to pass to the resolver start callback. */
	OPT_RESOLVER_START_DATA = OPTTYPE_CBPOINT + 273

	/* send HAProxy PROXY protocol header? */
	OPT_HAPROXYPROTOCOL = OPTTYPE_LONG + 274

	/* shuffle addresses before use when DNS returns multiple */
	OPT_DNS_SHUFFLE_ADDRESSES = OPTTYPE_LONG + 275

	/* Specify which TLS 1.3 ciphers suites to use */
	OPT_TLS13_CIPHERS       = OPTTYPE_STRINGPOINT + 276
	OPT_PROXY_TLS13_CIPHERS = OPTTYPE_STRINGPOINT + 277

	/* Disallow specifying username/login in URL. */
	OPT_DISALLOW_USERNAME_IN_URL = OPTTYPE_LONG + 278

	/* DNS-over-HTTPS URL */
	OPT_DOH_URL = OPTTYPE_STRINGPOINT + 279

	/* Preferred buffer size to use for uploads */
	OPT_UPLOAD_BUFFERSIZE = OPTTYPE_LONG + 280

	/* Time in ms between connection upkeep calls for long-lived connections. */
	OPT_UPKEEP_INTERVAL_MS = OPTTYPE_LONG + 281

	/* Specify URL using CURL URL API. */
	OPT_CURLU = OPTTYPE_OBJECTPOINT + 282

	/* add trailing data just after no more data is available */
	OPT_TRAILERFUNCTION = OPTTYPE_FUNCTIONPOINT + 283

	/* pointer to be passed to HTTP_TRAILER_FUNCTION */
	OPT_TRAILERDATA = OPTTYPE_CBPOINT + 284

	/* set this to 1L to allow HTTP/0.9 responses or 0L to disallow */
	OPT_HTTP09_ALLOWED = OPTTYPE_LONG + 285

	/* alt-svc control bitmask */
	OPT_ALTSVC_CTRL = OPTTYPE_LONG + 286

	/* alt-svc cache file name to possibly read from/write to */
	OPT_ALTSVC = OPTTYPE_STRINGPOINT + 287

	/* maximum age (idle time) of a connection to consider it for reuse
	 * (in seconds) */
	OPT_MAXAGE_CONN = OPTTYPE_LONG + 288

	/* SASL authorization identity */
	OPT_SASL_AUTHZID = OPTTYPE_STRINGPOINT + 289

	/* allow RCPT TO command to fail for some recipients */
	OPT_MAIL_RCPT_ALLLOWFAILS = OPTTYPE_LONG + 290

	/* the private SSL-certificate as a "blob" */
	OPT_SSLCERT_BLOB       = OPTTYPE_BLOB + 291
	OPT_SSLKEY_BLOB        = OPTTYPE_BLOB + 292
	OPT_PROXY_SSLCERT_BLOB = OPTTYPE_BLOB + 293
	OPT_PROXY_SSLKEY_BLOB  = OPTTYPE_BLOB + 294
	OPT_ISSUERCERT_BLOB    = OPTTYPE_BLOB + 295

	/* Issuer certificate for proxy */
	OPT_PROXY_ISSUERCERT      = OPTTYPE_STRINGPOINT + 296
	OPT_PROXY_ISSUERCERT_BLOB = OPTTYPE_BLOB + 297

	/* the EC curves requested by the TLS client (RFC 8422, 5.1);
	 * OpenSSL support via 'set_groups'/'set_curves':
	 * https://www.openssl.org/docs/manmaster/man3/SSL_CTX_set1_groups.html
	 */
	OPT_SSL_EC_CURVES = OPTTYPE_STRINGPOINT + 298

	/* HSTS bitmask */
	OPT_HSTS_CTRL = OPTTYPE_LONG + 299
	/* HSTS file name */
	OPT_HSTS = OPTTYPE_STRINGPOINT + 300

	/* HSTS read callback */
	OPT_HSTSREADFUNCTION = OPTTYPE_FUNCTIONPOINT + 301
	OPT_HSTSREADDATA     = OPTTYPE_CBPOINT + 302

	/* HSTS write callback */
	OPT_HSTSWRITEFUNCTION = OPTTYPE_FUNCTIONPOINT + 303
	OPT_HSTSWRITEDATA     = OPTTYPE_CBPOINT + 304

	/* Parameters for V4 signature */
	OPT_AWS_SIGV4 = OPTTYPE_STRINGPOINT + 305

	/* Same as CURLOPT_SSL_VERIFYPEER but for DoH (DNS-over-HTTPS) servers. */
	OPT_DOH_SSL_VERIFYPEER = OPTTYPE_LONG + 306

	/* Same as CURLOPT_SSL_VERIFYHOST but for DoH (DNS-over-HTTPS) servers. */
	OPT_DOH_SSL_VERIFYHOST = OPTTYPE_LONG + 307

	/* Same as CURLOPT_SSL_VERIFYSTATUS but for DoH (DNS-over-HTTPS) servers. */
	OPT_DOH_SSL_VERIFYSTATUS = OPTTYPE_LONG + 308

	/* The CA certificates as "blob" used to validate the peer certificate
	   this option is used only if SSL_VERIFYPEER is true */
	OPT_CAINFO_BLOB = OPTTYPE_BLOB + 309

	/* The CA certificates as "blob" used to validate the proxy certificate
	   this option is used only if PROXY_SSL_VERIFYPEER is true */
	OPT_PROXY_CAINFO_BLOB = OPTTYPE_BLOB + 310

	/* used by scp/sftp to verify the host's public key */
	OPT_SSH_HOST_PUBLIC_KEY_SHA256 = OPTTYPE_STRINGPOINT + 311

	/* Function that will be called immediately before the initial request
	   is made on a connection (after any protocol negotiation step).  */
	OPT_PREREQFUNCTION = OPTTYPE_FUNCTIONPOINT + 312

	/* Data passed to the CURLOPT_PREREQFUNCTION callback */
	OPT_PREREQDATA = OPTTYPE_CBPOINT + 313

	/* maximum age (since creation) of a connection to consider it for reuse
	 * (in seconds) */
	OPT_MAXLIFETIME_CONN = OPTTYPE_LONG + 314

	/* Set MIME option flags. */
	OPT_MIME_OPTIONS = OPTTYPE_LONG + 315

	/* set the SSH host key callback, must point to a curl_sshkeycallback
	   function */
	OPT_SSH_HOSTKEYFUNCTION = OPTTYPE_FUNCTIONPOINT + 316

	/* set the SSH host key callback custom pointer */
	OPT_SSH_HOSTKEYDATA = OPTTYPE_CBPOINT + 317

	/* specify which protocols that are allowed to be used for the transfer,
	   which thus helps the app which takes URLs from users or other external
	   inputs and want to restrict what protocol(s) to deal with. Defaults to
	   all built-in protocols. */
	OPT_PROTOCOLS_STR = OPTTYPE_STRINGPOINT + 318

	/* specify which protocols that libcurl is allowed to follow directs to */
	OPT_REDIR_PROTOCOLS_STR = OPTTYPE_STRINGPOINT + 319

	/* websockets options */
	OPT_WS_OPTIONS = OPTTYPE_LONG + 320
)

const (
	E_OK                       = iota
	E_UNSUPPORTED_PROTOCOL     /* 1 */
	E_FAILED_INIT              /* 2 */
	E_URL_MALFORMAT            /* 3 */
	E_NOT_BUILT_IN             /* 4 - [was obsoleted in August 2007 for 7.17.0, reused in April 2011 for 7.21.5] */
	E_COULDNT_RESOLVE_PROXY    /* 5 */
	E_COULDNT_RESOLVE_HOST     /* 6 */
	E_COULDNT_CONNECT          /* 7 */
	E_WEIRD_SERVER_REPLY       /* 8 */
	E_REMOTE_ACCESS_DENIED     /* 9 a service was denied by the server due to lack of access - when login fails this is not returned. */
	E_FTP_ACCEPT_FAILED        /* 10 - [was obsoleted in April 2006 for 7.15.4, reused in Dec 2011 for 7.24.0]*/
	E_FTP_WEIRD_PASS_REPLY     /* 11 */
	E_FTP_ACCEPT_TIMEOUT       /* 12 - timeout occurred accepting server [was obsoleted in August 2007 for 7.17.0, reused in Dec 2011 for 7.24.0]*/
	E_FTP_WEIRD_PASV_REPLY     /* 13 */
	E_FTP_WEIRD_227_FORMAT     /* 14 */
	E_FTP_CANT_GET_HOST        /* 15 */
	E_HTTP2                    /* 16 - A problem in the http2 framing layer. [was obsoleted in August 2007 for 7.17.0, reused in July 2014 for 7.38.0] */
	E_FTP_COULDNT_SET_TYPE     /* 17 */
	E_PARTIAL_FILE             /* 18 */
	E_FTP_COULDNT_RETR_FILE    /* 19 */
	E_OBSOLETE20               /* 20 - NOT USED */
	E_QUOTE_ERROR              /* 21 - quote command failure */
	E_HTTP_RETURNED_ERROR      /* 22 */
	E_WRITE_ERROR              /* 23 */
	E_OBSOLETE24               /* 24 - NOT USED */
	E_UPLOAD_FAILED            /* 25 - failed upload "command" */
	E_READ_ERROR               /* 26 - couldn't open/read from file */
	E_OUT_OF_MEMORY            /* 27 */
	E_OPERATION_TIMEDOUT       /* 28 - the timeout time was reached */
	E_OBSOLETE29               /* 29 - NOT USED */
	E_FTP_PORT_FAILED          /* 30 - FTP PORT operation failed */
	E_FTP_COULDNT_USE_REST     /* 31 - the REST command failed */
	E_OBSOLETE32               /* 32 - NOT USED */
	E_RANGE_ERROR              /* 33 - RANGE "command" didn't work */
	E_HTTP_POST_ERROR          /* 34 */
	E_SSL_CONNECT_ERROR        /* 35 - wrong when connecting with SSL */
	E_BAD_DOWNLOAD_RESUME      /* 36 - couldn't resume download */
	E_FIE_COULDNT_READ_FILE    /* 37 */
	E_LDAP_CANNOT_BIND         /* 38 */
	E_LDAP_SEARCH_FAILED       /* 39 */
	E_OBSOLETE40               /* 40 - NOT USED */
	E_FUNCTION_NOT_FOUND       /* 41 - NOT USED starting with 7.53.0 */
	E_ABORTED_BY_CALLBACK      /* 42 */
	E_BAD_FUNCTION_ARGUMENT    /* 43 */
	E_OBSOLETE44               /* 44 - NOT USED */
	E_INTERFACE_FAILED         /* 45 - CURLOPT_INTERFACE failed */
	E_OBSOLETE46               /* 46 - NOT USED */
	E_TOO_MANY_REDIRECTS       /* 47 - catch endless re-direct loops */
	E_UNKNOWN_OPTION           /* 48 - User specified an unknown option */
	E_SETOPT_OPTION_SYNTAX     /* 49 - Malformed setopt option */
	E_OBSOLETE50               /* 50 - NOT USED */
	E_OBSOLETE51               /* 51 - NOT USED */
	E_GOT_NOTHING              /* 52 - when this is a specific error */
	E_SSL_ENGINE_NOTFOUND      /* 53 - SSL crypto engine not found */
	E_SSL_ENGINE_SETFAILED     /* 54 - can not set SSL crypto engine as default */
	E_SEND_ERROR               /* 55 - failed sending network data */
	E_RECV_ERROR               /* 56 - failure in receiving network data */
	E_OBSOLETE57               /* 57 - NOT IN USE */
	E_SSL_CERTPROBLEM          /* 58 - problem with the local certificate */
	E_SSL_CIPHER               /* 59 - couldn't use specified cipher */
	E_PEER_FAILED_VERIFICATION /* 60 - peer's certificate or fingerprint wasn't verified fine */
	E_BAD_CONTENT_ENCODING     /* 61 - Unrecognized/bad encoding */
	E_OBSOLETE62               /* 62 - NOT IN USE since 7.82.0 */
	E_FILESIZE_EXCEEDED        /* 63 - Maximum file size exceeded */
	E_USE_SSL_FAILED           /* 64 - Requested FTP SSL level failed */
	E_SEND_FAIL_REWIND         /* 65 - Sending the data requires a rewind that failed */
	E_SSL_ENGINE_INITFAILED    /* 66 - failed to initialise ENGINE */
	E_LOGIN_DENIED             /* 67 - user, password or similar was not accepted and we failed to login */
	E_TFTP_NOTFOUND            /* 68 - file not found on server */
	E_TFTP_PERM                /* 69 - permission problem on server */
	E_REMOTE_DISK_FULL         /* 70 - out of disk space on server */
	E_TFTP_ILLEGAL             /* 71 - Illegal TFTP operation */
	E_TFTP_UNKNOWNID           /* 72 - Unknown transfer ID */
	E_REMOTE_FIE_EXISTS        /* 73 - File already exists */
	E_TFTP_NOSUCHUSER          /* 74 - No such user */
	E_OBSOLETE75               /* 75 - NOT IN USE since 7.82.0 */
	E_OBSOLETE76               /* 76 - NOT IN USE since 7.82.0 */
	E_SSL_CACERT_BADFILE       /* 77 - could not load CACERT file, missing or wrong format */
	E_REMOTE_FIE_NOT_FOUND     /* 78 - remote file not found */
	E_SSH                      /* 79 - error from the SSH layer, somewhat generic so the error message will be of interest when this has happened */
	E_SSL_SHUTDOWN_FAILED      /* 80 - Failed to shut down the SSL connection */
	E_AGAIN                    /* 81 - socket is not ready for send/recv, wait till it's ready and try again (Added  in 7.18.2) */
	E_SSL_CRL_BADFILE          /* 82 - could not load CRL file, missing or  wrong format (Added in 7.19.0) */
	E_SSL_ISSUER_ERROR         /* 83 - Issuer check failed. (Added in 7.19.0) */
	E_FTP_PRET_FAILED          /* 84 - a PRET command failed */
	E_RTSP_CSEQ_ERROR          /* 85 - mismatch of RTSP CSeq numbers */
	E_RTSP_SESSION_ERROR       /* 86 - mismatch of RTSP Session Ids */
	E_FTP_BAD_FIE_LIST         /* 87 - unable to parse FTP file list */
	E_CHUNK_FAILED             /* 88 - chunk callback reported error */
	E_NO_CONNECTION_AVAILABLE  /* 89 - No connection available, the session will be queued */
	E_SSL_PINNEDPUBKEYNOTMATCH /* 90 - specified pinned public key did not match */
	E_SSL_INVALIDCERTSTATUS    /* 91 - invalid certificate status */
	E_HTTP2_STREAM             /* 92 - stream error in HTTP/2 framing layer */
	E_RECURSIVE_API_CALL       /* 93 - an api function was called from inside a callback */
	E_AUTH_ERROR               /* 94 - an authentication function returned an error */
	E_HTTP3                    /* 95 - An HTTP/3 layer problem */
	E_QUIC_CONNECT_ERROR       /* 96 - QUIC connection error */
	E_PROXY                    /* 97 - proxy handshake error */
	E_SSL_CLIENTCERT           /* 98 - client-side certificate required */
	E_UNRECOVERABE_POLL        /* 99 - poll/select returned fatal error */
)

const (
	/* Return code for when the pre-request callback has terminated without
	   any errors */
	PREREQFUNC_OK = 0
	/* Return code for when the pre-request callback wants to abort the
	   request */
	PREREQFUNC_ABORT = 1
)

const (
	INFO_STRING   = 0x100000
	INFO_LONG     = 0x200000
	INFO_DOUBLE   = 0x300000
	INFO_SLIST    = 0x400000
	INFO_PTR      = 0x400000 /* same as SLIST */
	INFO_SOCKET   = 0x500000
	INFO_OFF_T    = 0x600000
	INFO_MASK     = 0x0fffff
	INFO_TYPEMASK = 0xf00000
)

const (
	INFO_EFFECTIVE_URL             = INFO_STRING + 1  // 获取最后使用的URL，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RESPONSE_CODE             = INFO_LONG + 2    // 获取最后响应代码，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_TOTAL_TIME                = INFO_DOUBLE + 3  // 最后一次传输总耗时，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_NAMELOOKUP_TIME           = INFO_DOUBLE + 4  // 域名解析时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONNECT_TIME              = INFO_DOUBLE + 5  // 建立连接耗时，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PRETRANSFER_TIME          = INFO_DOUBLE + 6  // 从建立连接到准备传输所使用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SIZE_UPLOAD               = INFO_DOUBLE + 7  // （已弃用）上传的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SIZE_UPLOAD_T             = INFO_OFF_T + 7   // 上传的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SIZE_DOWNLOAD             = INFO_DOUBLE + 8  // （已弃用）下载的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SIZE_DOWNLOAD_T           = INFO_OFF_T + 8   // 下载的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SPEED_DOWNLOAD            = INFO_DOUBLE + 9  // （已弃用）平均下载速度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SPEED_DOWNLOAD_T          = INFO_OFF_T + 9   // 平均下载速度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SPEED_UPLOAD              = INFO_DOUBLE + 10 // （已弃用）平均上传速度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SPEED_UPLOAD_T            = INFO_OFF_T + 10  // 平均上传速度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_HEADER_SIZE               = INFO_LONG + 11   // 接收到的所有标头的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REQUEST_SIZE              = INFO_LONG + 12   // 发出的 HTTP 请求中发送的字节数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SSL_VERIFYRESULT          = INFO_LONG + 13   // 证书验证结果，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_FILETIME                  = INFO_LONG + 14   // 检索到的文档的远程时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_FILETIME_T                = INFO_OFF_T + 14  // 检索到的文档的远程时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONTENT_LENGTH_DOWNLOAD   = INFO_DOUBLE + 15 // （已弃用）来自 Content-Length 标头的内容长度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONTENT_LENGTH_DOWNLOAD_T = INFO_OFF_T + 15  // 来自 Content-Length 标头的内容长度，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONTENT_LENGTH_UPLOAD     = INFO_DOUBLE + 16 // （已弃用）上传大小，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONTENT_LENGTH_UPLOAD_T   = INFO_OFF_T + 16  // 上传大小，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_STARTTRANSFER_TIME        = INFO_DOUBLE + 17 // 从建立连接到传输开始所使用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONTENT_TYPE              = INFO_STRING + 18 // Content-Type 标头中的内容类型，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REDIRECT_TIME             = INFO_DOUBLE + 19 // 最终传输前所有重定向步骤所用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REDIRECT_COUNT            = INFO_LONG + 20   // 遵循的重定向总数，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PRIVATE                   = INFO_STRING + 21 // 用户的私有数据指针，由"SetOpt"时设置的数据，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_HTTP_CONNECTCODE          = INFO_LONG + 22   // 最后一个代理 CONNECT 响应代码，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_HTTPAUTH_AVAIL            = INFO_LONG + 23   // 可用的 HTTP 身份验证方法，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PROXYAUTH_AVAIL           = INFO_LONG + 24   // 可用的 HTTP 代理身份验证方法，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_OS_ERRNO                  = INFO_LONG + 25   // 上次连接失败的 errno，仅在失败时才重置此值，"Error()"获取错误描述，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_NUM_CONNECTS              = INFO_LONG + 26   // 创建连接数，必须创建多少新连接才能实现先前的传输（仅计算成功的连接）。结合"INFO_REDIRECT_COUNT"，您可以知道 libcurl 成功重用现有连接的次数。https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SSL_ENGINES               = INFO_SLIST + 27  // OpenSSL 加密引擎列表，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_COOKIELIST                = INFO_SLIST + 28  // 所有已知 cookie 的列表，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_LASTSOCKET                = INFO_LONG + 29   // 最后使用的套接字，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_FTP_ENTRY_PATH            = INFO_STRING + 30 // 登录FTP服务器后的入口路径，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REDIRECT_URL              = INFO_STRING + 31 // 重定向URL，如果您启用了重定向，重定向将带您到 URL，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PRIMARY_IP                = INFO_STRING + 32 // 最后一次连接的 IP 地址，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_APPCONNECT_TIME           = INFO_DOUBLE + 33 // 从开始到 SSL/SSH 握手完成的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CERTINFO                  = INFO_PTR + 34    // 证书信息，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONDITION_UNMET           = INFO_LONG + 35   // 是否满足时间条件或 304 HTTP 响应，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RTSP_SESSION_ID           = INFO_STRING + 36 // RTSP 会话 ID，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RTSP_CLIENT_CSEQ          = INFO_LONG + 37   // RTSP客户端CSEQ，接下来将使用的 RTSP CSeq，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RTSP_SERVER_CSEQ          = INFO_LONG + 38   // RTSP服务器CSEQ，预计接下来的 RTSP CSeq，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RTSP_CSEQ_RECV            = INFO_LONG + 39   // RTSP接收CSEQ，上次收到的 RTSP CSeq，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PRIMARY_PORT              = INFO_LONG + 40   // 最后一个连接的端口，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_LOCAL_IP                  = INFO_STRING + 41 // 最后一次连接的本端IP地址，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_LOCAL_PORT                = INFO_LONG + 42   // 最后一次连接的本端端口，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_TLS_SESSION               = INFO_PTR + 43    // 可用于进一步处理的 TLS 会话信息。请改用 INFO_TLS_SSL_PTR，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_ACTIVESOCKET              = INFO_SOCKET + 44 // 当前套接字，会话的活动套接字，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_TLS_SSL_PTR               = INFO_PTR + 45    // 可用于进一步处理的 TLS 会话信息，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_HTTP_VERSION              = INFO_LONG + 46   // 连接中使用的 http 版本，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PROXY_SSL_VERIFYRESULT    = INFO_LONG + 47   // 代理证书验证结果，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PROTOCOL                  = INFO_LONG + 48   // 用于连接的协议，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_SCHEME                    = INFO_STRING + 49 // 用于连接的方案，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_TOTAL_TIME_T              = INFO_OFF_T + 50  // 最后一次传输总耗时，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_NAMELOOKUP_TIME_T         = INFO_OFF_T + 51  // 域名解析时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CONNECT_TIME_T            = INFO_OFF_T + 52  // 建立连接耗时，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PRETRANSFER_TIME_T        = INFO_OFF_T + 53  // 从建立连接到准备传输所使用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_STARTTRANSFER_TIME_T      = INFO_OFF_T + 54  // 从建立连接到传输开始所使用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REDIRECT_TIME_T           = INFO_OFF_T + 55  // 最终传输前所有重定向步骤所用的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_APPCONNECT_TIME_T         = INFO_OFF_T + 56  // 从开始到 SSL/SSH 握手完成的时间，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_RETRY_AFTER               = INFO_OFF_T + 57  // 来自 Retry-After 标头的值，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_EFFECTIVE_METHOD          = INFO_STRING + 58 // 最后使用的 HTTP 方法，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_PROXY_ERROR               = INFO_LONG + 59   // 详细的代理错误，"PX_*"，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_REFERER                   = INFO_STRING + 60 // 推荐人标头，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CAINFO                    = INFO_STRING + 61 // 获取CURLOPT_CAINFO的默认值，https://curl.se/libcurl/c/curl_easy_getinfo.html
	INFO_CAPATH                    = INFO_STRING + 62 // 获取CURLOPT_CAPATH的默认值，https://curl.se/libcurl/c/curl_easy_getinfo.html
)

const (
	WS_RAW_MODE = 1 // 告诉curl我们自己处理所有的WebSocket魔法
)