131 lines
5.1 KiB
Groff
131 lines
5.1 KiB
Groff
.\" You can view this file with:
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.\" nroff -man [file]
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.\" $Id$
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.\"
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.TH curl_easy_init 3 "25 Apr 2002" "libcurl 7.9.7" "libcurl Manual"
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.SH NAME
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curl_easy_getinfo - Extract information from a curl session (added in 7.4)
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.SH SYNOPSIS
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.B #include <curl/curl.h>
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.sp
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.BI "CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ... );"
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.ad
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.SH DESCRIPTION
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Request internal information from the curl session with this function. The
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third argument
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.B MUST
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be a pointer to a long, a pointer to a char * or a pointer to a double (as
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this documentation describes further down). The data pointed-to will be
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filled in accordingly and can be relied upon only if the function returns
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CURLE_OK. This function is intended to get used *AFTER* a performed transfer,
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all results from this function are undefined until the transfer is completed.
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.SH AVAILABLE INFORMATION
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These are informations that can be extracted:
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.TP 0.8i
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.B CURLINFO_EFFECTIVE_URL
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Pass a pointer to a 'char *' to receive the last used effective URL.
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.TP
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.B CURLINFO_HTTP_CODE
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Pass a pointer to a long to receive the last received HTTP code.
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.TP
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.B CURLINFO_FILETIME
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Pass a pointer to a long to receive the remote time of the retrieved
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document. If you get -1, it can be because of many reasons (unknown, the
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server hides it or the server doesn't support the command that tells document
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time etc) and the time of the document is unknown. Note that you must tell the
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server to collect this information before the transfer is made, by using the
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CURLOPT_FILETIME option to \fIcurl_easy_setopt(3)\fP. (Added in 7.5)
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.TP
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.B CURLINFO_TOTAL_TIME
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Pass a pointer to a double to receive the total transaction time in seconds
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for the previous transfer. This time does not include the connect time, so if
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you want the complete operation time, you should add the
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CURLINFO_CONNECT_TIME.
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.TP
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.B CURLINFO_NAMELOOKUP_TIME
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Pass a pointer to a double to receive the time, in seconds, it took from the
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start until the name resolving was completed.
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.TP
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.B CURLINFO_CONNECT_TIME
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Pass a pointer to a double to receive the time, in seconds, it took from the
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start until the connect to the remote host (or proxy) was completed.
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.TP
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.B CURLINFO_PRETRANSFER_TIME
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Pass a pointer to a double to receive the time, in seconds, it took from the
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start until the file transfer is just about to begin. This includes all
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pre-transfer commands and negotiations that are specific to the particular
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protocol(s) involved.
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.TP
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.B CURLINFO_STARTTRANSFER_TIME
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Pass a pointer to a double to receive the time, in seconds, it took from the
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start until the first byte is just about to be transfered. This includes
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CURLINFO_PRETRANSFER_TIME and also the time the server needs to calculate
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the result.
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.TP
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.B CURLINFO_REDIRECT_TIME
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Pass a pointer to a double to receive the total time, in seconds, it took for
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all redirection steps include name lookup, connect, pretransfer and transfer
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before final transaction was started. CURLINFO_REDIRECT_TIME contains the
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complete execution time for multiple redirections. (Added in 7.9.7)
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.TP
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.B CURLINFO_REDIRECT_COUNT
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Pass a pointer to a long to receive the total number of redirections that were
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actually followed. (Added in 7.9.7)
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.TP
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.B CURLINFO_SIZE_UPLOAD
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Pass a pointer to a double to receive the total amount of bytes that were
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uploaded.
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.TP
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.B CURLINFO_SIZE_DOWNLOAD
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Pass a pointer to a double to receive the total amount of bytes that were
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downloaded.
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.TP
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.B CURLINFO_SPEED_DOWNLOAD
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Pass a pointer to a double to receive the average download speed that curl
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measured for the complete download.
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.TP
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.B CURLINFO_SPEED_UPLOAD
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Pass a pointer to a double to receive the average upload speed that curl
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measured for the complete upload.
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.TP
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.B CURLINFO_HEADER_SIZE
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Pass a pointer to a long to receive the total size of all the headers
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received.
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.TP
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.B CURLINFO_REQUEST_SIZE
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Pass a pointer to a long to receive the total size of the issued
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requests. This is so far only for HTTP requests. Note that this may be more
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than one request if FOLLOWLOCATION is true.
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.TP
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.B CURLINFO_SSL_VERIFYRESULT
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Pass a pointer to a long to receive the result of the certification
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verification that was requested (using the CURLOPT_SSL_VERIFYPEER option to
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curl_easy_setopt). (Added in 7.4.2)
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.TP
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.B CURLINFO_CONTENT_LENGTH_DOWNLOAD
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Pass a pointer to a double to receive the content-length of the download. This
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is the value read from the Content-Length: field. (Added in 7.6.1)
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.TP
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.B CURLINFO_CONTENT_LENGTH_UPLOAD
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Pass a pointer to a double to receive the specified size of the upload.
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(Added in 7.6.1)
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.TP
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.B CURLINFO_CONTENT_TYPE
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Pass a pointer to a 'char *' to receive the content-type of the downloaded
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object. This is the value read from the Content-Type: field. If you get NULL,
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it means that the server didn't send a valid Content-Type header or that the
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protocol used doesn't support this. (Added in 7.9.4)
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.TP
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.B CURLINFO_PRIVATE
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Pass a pointer to a 'char *' to receive the pointer to the private data
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associated with the curl handle (set with the CURLOPT_PRIVATE option to curl_easy_setopt).
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(Added in 7.10.3)
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.PP
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.SH RETURN VALUE
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If the operation was successful, CURLE_OK is returned. Otherwise an
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appropriate error code will be returned.
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.SH "SEE ALSO"
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.BR curl_easy_setopt "(3)"
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.SH BUGS
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Surely there are some, you tell me!
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