NAME

       curl_easy_getinfo - extract information from a curl handle

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_getinfo(CURL *curl, CURLINFO info, ... );

DESCRIPTION

       Request internal information from the curl session with this function.  The third argument
       MUST 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.

       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_URL
              Last used URL.  See CURLINFO_EFFECTIVE_URL(3)

       CURLINFO_RESPONSE_CODE
              Last received response code.  See CURLINFO_RESPONSE_CODE(3)

       CURLINFO_HTTP_CONNECTCODE
              Last proxy CONNECT response code.  See CURLINFO_HTTP_CONNECTCODE(3)

       CURLINFO_FILETIME
              Remote time of the retrieved document.  See CURLINFO_FILETIME(3)

       CURLINFO_TOTAL_TIME
              Total time of previous transfer.  See CURLINFO_TOTAL_TIME(3)

       CURLINFO_NAMELOOKUP_TIME
              Time from start until name resolving completed.  See CURLINFO_NAMELOOKUP_TIME(3)

       CURLINFO_CONNECT_TIME
              Time from start until remote host or proxy completed.  See CURLINFO_CONNECT_TIME(3)

       CURLINFO_APPCONNECT_TIME
              Time from start until SSL/SSH handshake completed.  See CURLINFO_APPCONNECT_TIME(3)

       CURLINFO_PRETRANSFER_TIME
              Time    from    start    until    just    before    the   transfer   begins.    See
              CURLINFO_PRETRANSFER_TIME(3)

       CURLINFO_STARTTRANSFER_TIME
              Time  from  start  until   just   when   the   first   byte   is   received.    See
              CURLINFO_STARTTRANSFER_TIME(3)

       CURLINFO_REDIRECT_TIME
              Time   taken   for   all   redirect   steps   before   the   final  transfer.   See
              CURLINFO_REDIRECT_TIME(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
              Number of bytes uploaded.  See CURLINFO_SIZE_UPLOAD(3)

       CURLINFO_SIZE_DOWNLOAD
              Number of bytes downloaded.  See CURLINFO_SIZE_DOWNLOAD(3)

       CURLINFO_SPEED_DOWNLOAD
              Average download speed.  See CURLINFO_SPEED_DOWNLOAD(3)

       CURLINFO_SPEED_UPLOAD
              Average upload speed.  See CURLINFO_SPEED_UPLOAD(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_SSL_ENGINES
              A list of OpenSSL crypto engines.  See CURLINFO_SSL_ENGINES(3)

       CURLINFO_CONTENT_LENGTH_DOWNLOAD
              Content       length       from      the      Content-Length      header.       See
              CURLINFO_CONTENT_LENGTH_DOWNLOAD(3)

       CURLINFO_CONTENT_LENGTH_UPLOAD
              Upload size.  See CURLINFO_CONTENT_LENGTH_UPLOAD(3)

       CURLINFO_CONTENT_TYPE
              Content type from the Content-Type header.  See CURLINFO_CONTENT_TYPE(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
              IP address of the last connection.  See CURLINFO_PRIMARY_IP(3)

       CURLINFO_PRIMARY_PORT
              Port of the last connection.  See CURLINFO_PRIMARY_PORT(3)

       CURLINFO_LOCAL_IP
              Local-end IP address of last connection.  See CURLINFO_LOCAL_IP(3)

       CURLINFO_LOCAL_PORT
              Local-end port of last connection.  See CURLINFO_LOCAL_PORT(3)

       CURLINFO_COOKIELIST
              List of all known cookies.  See CURLINFO_COOKIELIST(3)

       CURLINFO_LASTSOCKET
              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_CERTINFO
              Certificate chain.  See CURLINFO_CERTINFO(3)

       CURLINFO_TLS_SESSION
              TLS    session   info   that   can   be   used   for   further   processing.    See
              CURLINFO_TLS_SESSION(3)

       CURLINFO_CONDITION_UNMET
              Whether or not a time conditional was met.  See CURLINFO_CONDITION_UNMET(3)

       CURLINFO_RTSP_SESSION_ID
              RTSP session ID.  See CURLINFO_RTSP_SESSION_ID(3)

       CURLINFO_RTSP_CLIENT_CSEQ
              RTSP CSeq that will next be used.  See CURLINFO_RTSP_CLIENT_CSEQ(3)

       CURLINFO_RTSP_SERVER_CSEQ
              RTSP CSeq that will next be expected.  See CURLINFO_RTSP_SERVER_CSEQ(3)

       CURLINFO_RTSP_CSEQ_RECV
              RTSP CSeq last received.  See CURLINFO_RTSP_CSEQ_RECV(3)

TIMES

       An overview of the six time values available from curl_easy_getinfo()

       curl_easy_perform()
           |
           |--NAMELOOKUP
           |--|--CONNECT
           |--|--|--APPCONNECT
           |--|--|--|--PRETRANSFER
           |--|--|--|--|--STARTTRANSFER
           |--|--|--|--|--|--TOTAL
           |--|--|--|--|--|--REDIRECT

       NAMELOOKUP
              CURLINFO_NAMELOOKUP_TIME. The time it took from the start until the name  resolving
              was completed.

       CONNECT
              CURLINFO_CONNECT_TIME.  The  time  it  took from the start until the connect to the
              remote host (or proxy) was completed.

       APPCONNECT
              CURLINFO_APPCONNECT_TIME.  The  time  it  took  from  the  start  until   the   SSL
              connect/handshake with the remote host was completed. (Added in in 7.19.0)

       PRETRANSFER
              CURLINFO_PRETRANSFER_TIME.  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.

       STARTTRANSFER
              CURLINFO_STARTTRANSFER_TIME.  The  time it took from the start until the first byte
              is received by libcurl.

       TOTAL  CURLINFO_TOTAL_TIME. Total time of the previous request.

       REDIRECT
              CURLINFO_REDIRECT_TIME. 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.

RETURN VALUE

       If the operation was successful, CURLE_OK is returned. Otherwise an appropriate error code
       will be returned.

SEE ALSO

       curl_easy_setopt(3)