curl/docs/libcurl/opts/CURLOPT_HTTP09_ALLOWED.3
Daniel Stenberg 006ff62d8c
http: added options for allowing HTTP/0.9 responses
Added CURLOPT_HTTP09_ALLOWED and --http0.9 for this purpose.

For now, both the tool and library allow HTTP/0.9 by default.
docs/DEPRECATE.md lays out the plan for when to reverse that default: 6
months after the 7.64.0 release. The options are added already now so
that applications/scripts can start using them already now.

Fixes #2873
Closes #3383
2018-12-21 10:49:30 +01:00

59 lines
2.2 KiB
Groff

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.TH CURLOPT_HTTP09_ALLOWED 3 "17 Dec 2018" "libcurl 7.64.0" "curl_easy_setopt options"
.SH NAME
CURLOPT_HTTP09 \- allow HTTP/0.9 response
.SH SYNOPSIS
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
.SH DESCRIPTION
Pass the long argument \fIallowed\fP set to 1L to allow HTTP/0.9 responses.
A HTTP/0.9 response is a server response entirely without headers and only a
body, while you can connect to lots of random TCP services and still get a
response that curl might consider to be HTTP/0.9.
.SH DEFAULT
curl allows HTTP/0.9 responses by default.
A future curl version will require this option to be set to allow HTTP/0.9
responses.
.SH PROTOCOLS
HTTP
.SH EXAMPLE
.nf
CURL *curl = curl_easy_init();
if(curl) {
CURLcode ret;
curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
ret = curl_easy_perform(curl);
}
.fi
.SH AVAILABILITY
Option added in 7.64.0, present along with HTTP.
.SH RETURN VALUE
Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
.SH "SEE ALSO"
.BR CURLOPT_SSLVERSION "(3), " CURLOPT_HTTP_VERSION "(3), "