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.TH curl_easy_getinfo 3 "11 Feb 2009" "libcurl 7.19.4" "libcurl Manual"
.SH NAME
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curl_easy_getinfo - extract information from a curl handle
.SH SYNOPSIS
.B #include <curl/curl.h>
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.B "CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ... );"
.SH DESCRIPTION
Request internal information from the curl session with this function. The
third argument \fBMUST\fP be a pointer to a long, a pointer to a char *, a
pointer to a struct curl_slist * or a pointer to a double (as this
documentation describes further down). The data pointed-to will be filled in
accordingly and can be relied upon only if the function returns CURLE_OK. Use
this function AFTER a performed transfer if you want to get transfer related
data.
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You should not free the memory returned by this function unless it is
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explicitly mentioned below.
.SH AVAILABLE INFORMATION
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The following information can be extracted:
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.IP CURLINFO_EFFECTIVE_URL
Last used URL.
See \fICURLINFO_EFFECTIVE_URL(3)\fP
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.IP CURLINFO_RESPONSE_CODE
Last received response code.
See \fICURLINFO_RESPONSE_CODE(3)\fP
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.IP CURLINFO_HTTP_CONNECTCODE
Last proxy CONNECT response code.
See \fICURLINFO_HTTP_CONNECTCODE(3)\fP
.IP CURLINFO_HTTP_VERSION
The http version used in the connection.
See \fICURLINFO_HTTP_VERSION(3)\fP
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.IP CURLINFO_FILETIME
Remote time of the retrieved document.
See \fICURLINFO_FILETIME(3)\fP
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.IP CURLINFO_TOTAL_TIME
Total time of previous transfer.
See \fICURLINFO_TOTAL_TIME(3)\fP
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.IP CURLINFO_NAMELOOKUP_TIME
Time from start until name resolving completed.
See \fICURLINFO_NAMELOOKUP_TIME(3)\fP
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.IP CURLINFO_CONNECT_TIME
Time from start until remote host or proxy completed.
See \fICURLINFO_CONNECT_TIME(3)\fP
.IP CURLINFO_APPCONNECT_TIME
Time from start until SSL/SSH handshake completed.
See \fICURLINFO_APPCONNECT_TIME(3)\fP
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.IP CURLINFO_PRETRANSFER_TIME
Time from start until just before the transfer begins.
See \fICURLINFO_PRETRANSFER_TIME(3)\fP
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.IP CURLINFO_STARTTRANSFER_TIME
Time from start until just when the first byte is received.
See \fICURLINFO_STARTTRANSFER_TIME(3)\fP
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.IP CURLINFO_REDIRECT_TIME
Time taken for all redirect steps before the final transfer.
See \fICURLINFO_REDIRECT_TIME(3)\fP
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.IP CURLINFO_REDIRECT_COUNT
Total number of redirects that were followed.
See \fICURLINFO_REDIRECT_COUNT(3)\fP
.IP CURLINFO_REDIRECT_URL
URL a redirect would take you to, had you enabled redirects.
See \fICURLINFO_REDIRECT_URL(3)\fP
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.IP CURLINFO_SIZE_UPLOAD
(Deprecated) Number of bytes uploaded.
See \fICURLINFO_SIZE_UPLOAD(3)\fP
.IP CURLINFO_SIZE_UPLOAD_T
Number of bytes uploaded.
See \fICURLINFO_SIZE_UPLOAD_T(3)\fP
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.IP CURLINFO_SIZE_DOWNLOAD
(Deprecated) Number of bytes downloaded.
See \fICURLINFO_SIZE_DOWNLOAD(3)\fP
.IP CURLINFO_SIZE_DOWNLOAD_T
Number of bytes downloaded.
See \fICURLINFO_SIZE_DOWNLOAD_T(3)\fP
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.IP CURLINFO_SPEED_DOWNLOAD
(Deprecated) Average download speed.
See \fICURLINFO_SPEED_DOWNLOAD(3)\fP
.IP CURLINFO_SPEED_DOWNLOAD_T
Average download speed.
See \fICURLINFO_SPEED_DOWNLOAD_T(3)\fP
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.IP CURLINFO_SPEED_UPLOAD
(Deprecated) Average upload speed.
See \fICURLINFO_SPEED_UPLOAD(3)\fP
.IP CURLINFO_SPEED_UPLOAD_T
Average upload speed.
See \fICURLINFO_SPEED_UPLOAD_T(3)\fP
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.IP CURLINFO_HEADER_SIZE
Number of bytes of all headers received.
See \fICURLINFO_HEADER_SIZE(3)\fP
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.IP CURLINFO_REQUEST_SIZE
Number of bytes sent in the issued HTTP requests.
See \fICURLINFO_REQUEST_SIZE(3)\fP
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.IP CURLINFO_SSL_VERIFYRESULT
Certificate verification result.
See \fICURLINFO_SSL_VERIFYRESULT(3)\fP
proxy: Support HTTPS proxy and SOCKS+HTTP(s) * HTTPS proxies: An HTTPS proxy receives all transactions over an SSL/TLS connection. Once a secure connection with the proxy is established, the user agent uses the proxy as usual, including sending CONNECT requests to instruct the proxy to establish a [usually secure] TCP tunnel with an origin server. HTTPS proxies protect nearly all aspects of user-proxy communications as opposed to HTTP proxies that receive all requests (including CONNECT requests) in vulnerable clear text. With HTTPS proxies, it is possible to have two concurrent _nested_ SSL/TLS sessions: the "outer" one between the user agent and the proxy and the "inner" one between the user agent and the origin server (through the proxy). This change adds supports for such nested sessions as well. A secure connection with a proxy requires its own set of the usual SSL options (their actual descriptions differ and need polishing, see TODO): --proxy-cacert FILE CA certificate to verify peer against --proxy-capath DIR CA directory to verify peer against --proxy-cert CERT[:PASSWD] Client certificate file and password --proxy-cert-type TYPE Certificate file type (DER/PEM/ENG) --proxy-ciphers LIST SSL ciphers to use --proxy-crlfile FILE Get a CRL list in PEM format from the file --proxy-insecure Allow connections to proxies with bad certs --proxy-key KEY Private key file name --proxy-key-type TYPE Private key file type (DER/PEM/ENG) --proxy-pass PASS Pass phrase for the private key --proxy-ssl-allow-beast Allow security flaw to improve interop --proxy-sslv2 Use SSLv2 --proxy-sslv3 Use SSLv3 --proxy-tlsv1 Use TLSv1 --proxy-tlsuser USER TLS username --proxy-tlspassword STRING TLS password --proxy-tlsauthtype STRING TLS authentication type (default SRP) All --proxy-foo options are independent from their --foo counterparts, except --proxy-crlfile which defaults to --crlfile and --proxy-capath which defaults to --capath. Curl now also supports %{proxy_ssl_verify_result} --write-out variable, similar to the existing %{ssl_verify_result} variable. Supported backends: OpenSSL, GnuTLS, and NSS. * A SOCKS proxy + HTTP/HTTPS proxy combination: If both --socks* and --proxy options are given, Curl first connects to the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS proxy. TODO: Update documentation for the new APIs and --proxy-* options. Look for "Added in 7.XXX" marks.
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.IP CURLINFO_PROXY_SSL_VERIFYRESULT
Proxy certificate verification result.
See \fICURLINFO_PROXY_SSL_VERIFYRESULT(3)\fP
.IP CURLINFO_SSL_ENGINES
A list of OpenSSL crypto engines.
See \fICURLINFO_SSL_ENGINES(3)\fP
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.IP CURLINFO_CONTENT_LENGTH_DOWNLOAD
(Deprecated) Content length from the Content-Length header.
See \fICURLINFO_CONTENT_LENGTH_DOWNLOAD(3)\fP
.IP CURLINFO_CONTENT_LENGTH_DOWNLOAD_T
Content length from the Content-Length header.
See \fICURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3)\fP
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.IP CURLINFO_CONTENT_LENGTH_UPLOAD
(Deprecated) Upload size. See \fICURLINFO_CONTENT_LENGTH_UPLOAD(3)\fP
.IP CURLINFO_CONTENT_LENGTH_UPLOAD_T
Upload size. See \fICURLINFO_CONTENT_LENGTH_UPLOAD_T(3)\fP
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.IP CURLINFO_CONTENT_TYPE
Content type from the Content-Type header.
See \fICURLINFO_CONTENT_TYPE(3)\fP
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.IP CURLINFO_PRIVATE
User's private data pointer.
See \fICURLINFO_PRIVATE(3)\fP
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.IP CURLINFO_HTTPAUTH_AVAIL
Available HTTP authentication methods.
See \fICURLINFO_HTTPAUTH_AVAIL(3)\fP
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.IP CURLINFO_PROXYAUTH_AVAIL
Available HTTP proxy authentication methods.
See \fICURLINFO_PROXYAUTH_AVAIL(3)\fP
.IP CURLINFO_OS_ERRNO
The errno from the last failure to connect.
See \fICURLINFO_OS_ERRNO(3)\fP
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.IP CURLINFO_NUM_CONNECTS
Number of new successful connections used for previous transfer.
See \fICURLINFO_NUM_CONNECTS(3)\fP
.IP CURLINFO_PRIMARY_IP
IP address of the last connection.
See \fICURLINFO_PRIMARY_IP(3)\fP
.IP CURLINFO_PRIMARY_PORT
Port of the last connection.
See \fICURLINFO_PRIMARY_PORT(3)\fP
.IP CURLINFO_LOCAL_IP
Local-end IP address of last connection.
See \fICURLINFO_LOCAL_IP(3)\fP
.IP CURLINFO_LOCAL_PORT
Local-end port of last connection.
See \fICURLINFO_LOCAL_PORT(3)\fP
.IP CURLINFO_COOKIELIST
List of all known cookies.
See \fICURLINFO_COOKIELIST(3)\fP
.IP CURLINFO_LASTSOCKET
Last socket used.
See \fICURLINFO_LASTSOCKET(3)\fP
.IP CURLINFO_ACTIVESOCKET
The session's active socket.
See \fICURLINFO_ACTIVESOCKET(3)\fP
.IP CURLINFO_FTP_ENTRY_PATH
The entry path after logging in to an FTP server.
See \fICURLINFO_FTP_ENTRY_PATH(3)\fP
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.IP CURLINFO_CERTINFO
Certificate chain.
See \fICURLINFO_CERTINFO(3)\fP
.IP CURLINFO_TLS_SSL_PTR
TLS session info that can be used for further processing.
See \fICURLINFO_TLS_SSL_PTR(3)\fP
.IP CURLINFO_TLS_SESSION
TLS session info that can be used for further processing. See
\fICURLINFO_TLS_SESSION(3)\fP. Deprecated option, use
\fICURLINFO_TLS_SSL_PTR(3)\fP instead!
.IP CURLINFO_CONDITION_UNMET
Whether or not a time conditional was met.
See \fICURLINFO_CONDITION_UNMET(3)\fP
.IP CURLINFO_RTSP_SESSION_ID
RTSP session ID.
See \fICURLINFO_RTSP_SESSION_ID(3)\fP
.IP CURLINFO_RTSP_CLIENT_CSEQ
RTSP CSeq that will next be used.
See \fICURLINFO_RTSP_CLIENT_CSEQ(3)\fP
.IP CURLINFO_RTSP_SERVER_CSEQ
RTSP CSeq that will next be expected.
See \fICURLINFO_RTSP_SERVER_CSEQ(3)\fP
.IP CURLINFO_RTSP_CSEQ_RECV
RTSP CSeq last received.
See \fICURLINFO_RTSP_CSEQ_RECV(3)\fP
.IP CURLINFO_PROTOCOL
The protocol used for the connection. (Added in 7.52.0)
See \fICURLINFO_PROTOCOL(3)\fP
.IP CURLINFO_SCHEME
The scheme used for the connection. (Added in 7.52.0)
See \fICURLINFO_SCHEME(3)\fP
.SH TIMES
.nf
An overview of the six time values available from curl_easy_getinfo()
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curl_easy_perform()
|
|--NAMELOOKUP
|--|--CONNECT
|--|--|--APPCONNECT
|--|--|--|--PRETRANSFER
|--|--|--|--|--STARTTRANSFER
|--|--|--|--|--|--TOTAL
|--|--|--|--|--|--REDIRECT
.fi
.IP NAMELOOKUP
\fICURLINFO_NAMELOOKUP_TIME\fP. The time it took from the start until the name
resolving was completed.
.IP CONNECT
\fICURLINFO_CONNECT_TIME\fP. The time it took from the start until the connect
to the remote host (or proxy) was completed.
.IP APPCONNECT
\fICURLINFO_APPCONNECT_TIME\fP. The time it took from the start until the SSL
connect/handshake with the remote host was completed. (Added in in 7.19.0)
.IP PRETRANSFER
\fICURLINFO_PRETRANSFER_TIME\fP. The time it took from the start until the
file transfer is just about to begin. This includes all pre-transfer commands
and negotiations that are specific to the particular protocol(s) involved.
.IP STARTTRANSFER
\fICURLINFO_STARTTRANSFER_TIME\fP. The time it took from the start until the
first byte is received by libcurl.
.IP TOTAL
\fICURLINFO_TOTAL_TIME\fP. Total time of the previous request.
.IP REDIRECT
\fICURLINFO_REDIRECT_TIME\fP. The time it took for all redirection steps
include name lookup, connect, pretransfer and transfer before final
transaction was started. So, this is zero if no redirection took place.
.SH RETURN VALUE
If the operation was successful, CURLE_OK is returned. Otherwise an
appropriate error code will be returned.
.SH "SEE ALSO"
.BR curl_easy_setopt "(3)"