iw7-mod/deps/curl/docs/libcurl/curl_easy_getinfo.md
2024-08-13 05:15:34 -04:00

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---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Title: curl_easy_getinfo
Section: 3
Source: libcurl
See-also:
- curl_easy_setopt (3)
---
# NAME
curl_easy_getinfo - extract information from a curl handle
# SYNOPSIS
~~~c
#include <curl/curl.h>
CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ... );
~~~
# DESCRIPTION
Get the *info* kept in the *curl* handle. The third argument **MUST** be
pointing to the specific type of the used option which is documented in each
man page of the *info* option. The data is stored accordingly and can be
relied upon only if this function returns CURLE_OK. Use this function after a
performed transfer if you want to get transfer related data.
You should not free the memory returned by this function unless it is
explicitly mentioned below.
# AVAILABLE INFORMATION
The following information can be extracted:
## CURLINFO_EFFECTIVE_METHOD
Last used HTTP method. See CURLINFO_EFFECTIVE_METHOD(3)
## CURLINFO_EFFECTIVE_URL
Last used URL. See CURLINFO_EFFECTIVE_URL(3)
## CURLINFO_RESPONSE_CODE
Last received response code. See CURLINFO_RESPONSE_CODE(3)
## CURLINFO_REFERER
Referrer header. See CURLINFO_REFERER(3)
## CURLINFO_HTTP_CONNECTCODE
Last proxy CONNECT response code. See CURLINFO_HTTP_CONNECTCODE(3)
## CURLINFO_HTTP_VERSION
The http version used in the connection. See CURLINFO_HTTP_VERSION(3)
## CURLINFO_FILETIME
Remote time of the retrieved document. See CURLINFO_FILETIME(3)
## CURLINFO_FILETIME_T
Remote time of the retrieved document. See CURLINFO_FILETIME_T(3)
## CURLINFO_TOTAL_TIME
Total time of previous transfer. See CURLINFO_TOTAL_TIME(3)
## CURLINFO_TOTAL_TIME_T
Total time of previous transfer. See CURLINFO_TOTAL_TIME_T(3)
## CURLINFO_NAMELOOKUP_TIME
Time from start until name resolving completed. See
CURLINFO_NAMELOOKUP_TIME(3)
## CURLINFO_NAMELOOKUP_TIME_T
Time from start until name resolving completed. See
CURLINFO_NAMELOOKUP_TIME_T(3)
## CURLINFO_CONNECT_TIME
Time from start until remote host or proxy completed.
See CURLINFO_CONNECT_TIME(3)
## CURLINFO_CONNECT_TIME_T
Time from start until remote host or proxy completed.
See CURLINFO_CONNECT_TIME_T(3)
## CURLINFO_APPCONNECT_TIME
Time from start until SSL/SSH handshake completed.
See CURLINFO_APPCONNECT_TIME(3)
## CURLINFO_APPCONNECT_TIME_T
Time from start until SSL/SSH handshake completed.
See CURLINFO_APPCONNECT_TIME_T(3)
## CURLINFO_PRETRANSFER_TIME
Time from start until just before the transfer begins.
See CURLINFO_PRETRANSFER_TIME(3)
## CURLINFO_PRETRANSFER_TIME_T
Time from start until just before the transfer begins.
See CURLINFO_PRETRANSFER_TIME_T(3)
## CURLINFO_QUEUE_TIME_T
Time during which this transfer was held in a waiting queue.
See CURLINFO_QUEUE_TIME_T(3)
## CURLINFO_USED_PROXY
Whether the proxy was used (Added in 8.7.0). See CURLINFO_USED_PROXY(3)
## CURLINFO_STARTTRANSFER_TIME
Time from start until just when the first byte is received.
See CURLINFO_STARTTRANSFER_TIME(3)
## CURLINFO_STARTTRANSFER_TIME_T
Time from start until just when the first byte is received.
See CURLINFO_STARTTRANSFER_TIME_T(3)
## CURLINFO_REDIRECT_TIME
Time taken for all redirect steps before the final transfer.
See CURLINFO_REDIRECT_TIME(3)
## CURLINFO_REDIRECT_TIME_T
Time taken for all redirect steps before the final transfer.
See CURLINFO_REDIRECT_TIME_T(3)
## CURLINFO_REDIRECT_COUNT
Total number of redirects that were followed.
See CURLINFO_REDIRECT_COUNT(3)
## CURLINFO_REDIRECT_URL
URL a redirect would take you to, had you enabled redirects.
See CURLINFO_REDIRECT_URL(3)
## CURLINFO_SIZE_UPLOAD
(Deprecated) Number of bytes uploaded.
See CURLINFO_SIZE_UPLOAD(3)
## CURLINFO_SIZE_UPLOAD_T
Number of bytes uploaded.
See CURLINFO_SIZE_UPLOAD_T(3)
## CURLINFO_SIZE_DOWNLOAD
(Deprecated) Number of bytes downloaded.
See CURLINFO_SIZE_DOWNLOAD(3)
## CURLINFO_SIZE_DOWNLOAD_T
Number of bytes downloaded.
See CURLINFO_SIZE_DOWNLOAD_T(3)
## CURLINFO_SPEED_DOWNLOAD
(Deprecated) Average download speed.
See CURLINFO_SPEED_DOWNLOAD(3)
## CURLINFO_SPEED_DOWNLOAD_T
Average download speed.
See CURLINFO_SPEED_DOWNLOAD_T(3)
## CURLINFO_SPEED_UPLOAD
(Deprecated) Average upload speed.
See CURLINFO_SPEED_UPLOAD(3)
## CURLINFO_SPEED_UPLOAD_T
Average upload speed.
See CURLINFO_SPEED_UPLOAD_T(3)
## CURLINFO_HEADER_SIZE
Number of bytes of all headers received.
See CURLINFO_HEADER_SIZE(3)
## CURLINFO_REQUEST_SIZE
Number of bytes sent in the issued HTTP requests.
See CURLINFO_REQUEST_SIZE(3)
## CURLINFO_SSL_VERIFYRESULT
Certificate verification result.
See CURLINFO_SSL_VERIFYRESULT(3)
## CURLINFO_PROXY_ERROR
Detailed proxy error.
See CURLINFO_PROXY_ERROR(3)
## CURLINFO_PROXY_SSL_VERIFYRESULT
Proxy certificate verification result.
See CURLINFO_PROXY_SSL_VERIFYRESULT(3)
## CURLINFO_SSL_ENGINES
A list of OpenSSL crypto engines.
See CURLINFO_SSL_ENGINES(3)
## CURLINFO_CONTENT_LENGTH_DOWNLOAD
(Deprecated) Content length from the Content-Length header.
See CURLINFO_CONTENT_LENGTH_DOWNLOAD(3)
## CURLINFO_CONTENT_LENGTH_DOWNLOAD_T
Content length from the Content-Length header.
See CURLINFO_CONTENT_LENGTH_DOWNLOAD_T(3)
## CURLINFO_CONTENT_LENGTH_UPLOAD
(Deprecated) Upload size. See CURLINFO_CONTENT_LENGTH_UPLOAD(3)
## CURLINFO_CONTENT_LENGTH_UPLOAD_T
Upload size. See CURLINFO_CONTENT_LENGTH_UPLOAD_T(3)
## CURLINFO_CONTENT_TYPE
Content type from the Content-Type header.
See CURLINFO_CONTENT_TYPE(3)
## CURLINFO_RETRY_AFTER
The value from the Retry-After header.
See CURLINFO_RETRY_AFTER(3)
## CURLINFO_PRIVATE
User's private data pointer.
See CURLINFO_PRIVATE(3)
## CURLINFO_HTTPAUTH_AVAIL
Available HTTP authentication methods.
See CURLINFO_HTTPAUTH_AVAIL(3)
## CURLINFO_PROXYAUTH_AVAIL
Available HTTP proxy authentication methods.
See CURLINFO_PROXYAUTH_AVAIL(3)
## CURLINFO_OS_ERRNO
The errno from the last failure to connect.
See CURLINFO_OS_ERRNO(3)
## CURLINFO_NUM_CONNECTS
Number of new successful connections used for previous transfer.
See CURLINFO_NUM_CONNECTS(3)
## CURLINFO_PRIMARY_IP
Destination IP address of the last connection.
See CURLINFO_PRIMARY_IP(3)
## CURLINFO_PRIMARY_PORT
Destination port of the last connection.
See CURLINFO_PRIMARY_PORT(3)
## CURLINFO_LOCAL_IP
Source IP address of the last connection.
See CURLINFO_LOCAL_IP(3)
## CURLINFO_LOCAL_PORT
Source port number of the last connection.
See CURLINFO_LOCAL_PORT(3)
## CURLINFO_COOKIELIST
List of all known cookies.
See CURLINFO_COOKIELIST(3)
## CURLINFO_LASTSOCKET
(Deprecated) Last socket used.
See CURLINFO_LASTSOCKET(3)
## CURLINFO_ACTIVESOCKET
The session's active socket.
See CURLINFO_ACTIVESOCKET(3)
## CURLINFO_FTP_ENTRY_PATH
The entry path after logging in to an FTP server.
See CURLINFO_FTP_ENTRY_PATH(3)
## CURLINFO_CAPATH
Get the default value for CURLOPT_CAPATH(3).
See CURLINFO_CAPATH(3)
## CURLINFO_CAINFO
Get the default value for CURLOPT_CAINFO(3).
See CURLINFO_CAINFO(3)
## CURLINFO_CERTINFO
Certificate chain.
See CURLINFO_CERTINFO(3)
## CURLINFO_TLS_SSL_PTR
TLS session info that can be used for further processing.
See CURLINFO_TLS_SSL_PTR(3)
## CURLINFO_TLS_SESSION
TLS session info that can be used for further processing. See
CURLINFO_TLS_SESSION(3). Deprecated option, use
CURLINFO_TLS_SSL_PTR(3) instead!
## CURLINFO_CONDITION_UNMET
Whether or not a time conditional was met or 304 HTTP response.
See CURLINFO_CONDITION_UNMET(3)
## CURLINFO_RTSP_SESSION_ID
RTSP session ID.
See CURLINFO_RTSP_SESSION_ID(3)
## CURLINFO_RTSP_CLIENT_CSEQ
The RTSP client CSeq that is expected next.
See CURLINFO_RTSP_CLIENT_CSEQ(3)
## CURLINFO_RTSP_SERVER_CSEQ
The RTSP server CSeq that is expected next.
See CURLINFO_RTSP_SERVER_CSEQ(3)
## CURLINFO_RTSP_CSEQ_RECV
RTSP CSeq last received.
See CURLINFO_RTSP_CSEQ_RECV(3)
## CURLINFO_PROTOCOL
(Deprecated) The protocol used for the connection. (Added in 7.52.0)
See CURLINFO_PROTOCOL(3)
## CURLINFO_SCHEME
The scheme used for the connection. (Added in 7.52.0)
See CURLINFO_SCHEME(3)
## CURLINFO_CONN_ID
The ID of the last connection used by the transfer. (Added in 8.2.0)
See CURLINFO_CONN_ID(3)
## CURLINFO_XFER_ID
The ID of the transfer. (Added in 8.2.0)
See CURLINFO_XFER_ID(3)
# TIMES
An overview of the time values available from curl_easy_getinfo(3)
curl_easy_perform()
|
|--QUEUE
|--|--NAMELOOKUP
|--|--|--CONNECT
|--|--|--|--APPCONNECT
|--|--|--|--|--PRETRANSFER
|--|--|--|--|--|--STARTTRANSFER
|--|--|--|--|--|--|--TOTAL
|--|--|--|--|--|--|--REDIRECT
## CURLINFO_QUEUE_TIME
CURLINFO_QUEUE_TIME_T(3). The time during which the transfer was held in a
waiting queue before it could start for real. (Added in 8.6.0)
## CURLINFO_NAMELOOKUP_TIME
CURLINFO_NAMELOOKUP_TIME(3) and CURLINFO_NAMELOOKUP_TIME_T(3). The time it
took from the start until the name resolving was completed.
## CURLINFO_CONNECT_TIME
CURLINFO_CONNECT_TIME(3) and CURLINFO_CONNECT_TIME_T(3). The time it took from
the start until the connect to the remote host (or proxy) was completed.
## CURLINFO_APPCONNECT_TIME
CURLINFO_APPCONNECT_TIME(3) and CURLINFO_APPCONNECT_TIME_T(3). The time it
took from the start until the SSL connect/handshake with the remote host was
completed. (Added in 7.19.0) The latter is the integer version (measuring
microseconds). (Added in 7.60.0)
## CURLINFO_PRETRANSFER_TIME
CURLINFO_PRETRANSFER_TIME(3) and CURLINFO_PRETRANSFER_TIME_T(3). 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.
## CURLINFO_STARTTRANSFER_TIME
CURLINFO_STARTTRANSFER_TIME(3) and CURLINFO_STARTTRANSFER_TIME_T(3). The time
it took from the start until the first byte is received by libcurl.
## CURLINFO_TOTAL_TIME
CURLINFO_TOTAL_TIME(3) and CURLINFO_TOTAL_TIME_T(3). Total time
of the previous request.
## CURLINFO_REDIRECT_TIME
CURLINFO_REDIRECT_TIME(3) and CURLINFO_REDIRECT_TIME_T(3). 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.
# EXAMPLE
~~~c
int main(void)
{
CURL *curl = curl_easy_init();
if(curl) {
CURLcode res;
curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
res = curl_easy_perform(curl);
if(CURLE_OK == res) {
char *ct;
/* ask for the content-type */
res = curl_easy_getinfo(curl, CURLINFO_CONTENT_TYPE, &ct);
if((CURLE_OK == res) && ct)
printf("We received Content-Type: %s\n", ct);
}
/* always cleanup */
curl_easy_cleanup(curl);
}
}
~~~
# AVAILABILITY
Added in 7.4.1
# RETURN VALUE
If the operation was successful, CURLE_OK is returned. Otherwise an
appropriate error code is returned.