From 5c6a6165f399bb0879ff4d6b90501d95894dfbd9 Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Fri, 8 Oct 2021 13:44:10 +0200 Subject: CURLOPT_HTTPHEADER.3: add descripion for specific headers Settting Host: or Transfer-Encoding: chunked actually have special meanings to libcurl. This change tries to document them --- docs/libcurl/opts/CURLOPT_HTTPHEADER.3 | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 b/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 index 8e3994beb..685f6a44d 100644 --- a/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 +++ b/docs/libcurl/opts/CURLOPT_HTTPHEADER.3 @@ -68,6 +68,16 @@ The most commonly replaced headers have "shortcuts" in the options There's an alternative option that sets or replaces headers only for requests that are sent with CONNECT to a proxy: \fICURLOPT_PROXYHEADER(3)\fP. Use \fICURLOPT_HEADEROPT(3)\fP to control the behavior. +.SH SPECIFIC HEADERS +Setting some specific headers will cause libcurl to act differently. +.IP "Host:" +The specified host name will be used for cookie matching if the cookie engine +is also enabled for this transfer. If the request is done over HTTP/2 or +HTTP/3, the custom host name will instead be used in the ":authority" header +field and Host: will not be sent at all over the wire. +.IP "Transfer-Encoding: chunked" +Tells libcurl the upload is to be done using this chunked encoding instead of +providing the Content-Length: field in the request. .SH SECURITY CONCERNS By default, this option makes libcurl send the given headers in all HTTP requests done by this handle. You should therefore use this option with -- cgit v1.2.1