comparison mupdf-source/thirdparty/curl/docs/libcurl/opts/CURLOPT_HTTP09_ALLOWED.3 @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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23 .TH CURLOPT_HTTP09_ALLOWED 3 "17 Dec 2018" "libcurl 7.64.0" "curl_easy_setopt options"
24 .SH NAME
25 CURLOPT_HTTP09 \- allow HTTP/0.9 response
26 .SH SYNOPSIS
27 #include <curl/curl.h>
28
29 CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
30 .SH DESCRIPTION
31 Pass the long argument \fIallowed\fP set to 1L to allow HTTP/0.9 responses.
32
33 A HTTP/0.9 response is a server response entirely without headers and only a
34 body. You can connect to lots of random TCP services and still get a response
35 that curl might consider to be HTTP/0.9!
36 .SH DEFAULT
37 curl allowed HTTP/0.9 responses by default before 7.66.0
38
39 Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9
40 responses.
41 .SH PROTOCOLS
42 HTTP
43 .SH EXAMPLE
44 .nf
45 CURL *curl = curl_easy_init();
46 if(curl) {
47 CURLcode ret;
48 curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
49 curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
50 ret = curl_easy_perform(curl);
51 }
52 .fi
53 .SH AVAILABILITY
54 Option added in 7.64.0, present along with HTTP.
55 .SH RETURN VALUE
56 Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
57 .SH "SEE ALSO"
58 .BR CURLOPT_SSLVERSION "(3), " CURLOPT_HTTP_VERSION "(3), "