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elaborate a bit on how to deal with chunked-encoded trailers that now are

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passed to the app using the header callback
This commit is contained in:
Daniel Stenberg 2005-07-13 09:37:22 +00:00
parent fd1148a728
commit a8a8ae2e92
1 changed files with 9 additions and 1 deletions
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10
docs/libcurl/curl_easy_setopt.3
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@ -21,7 +21,7 @@
.\" * $Id$ .\" * $Id$
.\" ************************************************************************** .\" **************************************************************************
.\" .\"
.TH curl_easy_setopt 3 "24 Jun 2005" "libcurl 7.14.1" "libcurl Manual" .TH curl_easy_setopt 3 "13 Jul 2005" "libcurl 7.14.1" "libcurl Manual"
.SH NAME .SH NAME
curl_easy_setopt - set options for a curl easy handle curl_easy_setopt - set options for a curl easy handle
.SH SYNOPSIS .SH SYNOPSIS
@ -180,6 +180,14 @@ you passed to libcurl with the \fICURLOPT_WRITEHEADER\fP option. Return the
number of bytes actually written or return -1 to signal error to the library number of bytes actually written or return -1 to signal error to the library
(it will cause it to abort the transfer with a \fICURLE_WRITE_ERROR\fP return (it will cause it to abort the transfer with a \fICURLE_WRITE_ERROR\fP return
code). code).
Since 7.14.1: When a server sends a chunked encoded transfer, it may contain a
trailer. That trailer is identical to a HTTP header and if such a trailer is
received it is passed to the application using this callback as well. There
are several ways to detect it being a trailer and not an ordinary header: 1)
it comes after the response-body. 2) it comes after the final header line (CR
LF) 3) a Trailer: header among the response-headers mention what header to
expect in the trailer.
.IP CURLOPT_WRITEHEADER .IP CURLOPT_WRITEHEADER
Pass a pointer to be used to write the header part of the received data to. If Pass a pointer to be used to write the header part of the received data to. If
you don't use your own callback to take care of the writing, this must be a you don't use your own callback to take care of the writing, this must be a