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curldown is this new file format for libcurl man pages. It is markdown inspired with differences: - Each file has a set of leading headers with meta-data - Supports a small subset of markdown - Uses .md file extensions for editors/IDE/GitHub to treat them nicely - Generates man pages very similar to the previous ones - Generates man pages that still convert nicely to HTML on the website - Detects and highlights mentions of curl symbols automatically (when their man page section is specified) tools: - cd2nroff: converts from curldown to nroff man page - nroff2cd: convert an (old) nroff man page to curldown - cdall: convert many nroff pages to curldown versions - cd2cd: verifies and updates a curldown to latest curldown This setup generates .3 versions of all the curldown versions at build time. CI: Since the documentation is now technically markdown in the eyes of many things, the CI runs many more tests and checks on this documentation, including proselint, link checkers and tests that make sure we capitalize the first letter after a period... Closes #12730
64 lines
1.2 KiB
Markdown
64 lines
1.2 KiB
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
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SPDX-License-Identifier: curl
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Title: CURLOPT_HTTP09_ALLOWED
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Section: 3
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Source: libcurl
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See-also:
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- CURLOPT_HTTP_VERSION (3)
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- CURLOPT_SSLVERSION (3)
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---
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# NAME
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CURLOPT_HTTP09_ALLOWED - allow HTTP/0.9 response
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# SYNOPSIS
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~~~c
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HTTP09_ALLOWED, long allowed);
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~~~
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# DESCRIPTION
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Pass the long argument *allowed* set to 1L to allow HTTP/0.9 responses.
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An HTTP/0.9 response is a server response entirely without headers and only a
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body. You can connect to lots of random TCP services and still get a response
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that curl might consider to be HTTP/0.9!
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# DEFAULT
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curl allowed HTTP/0.9 responses by default before 7.66.0
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Since 7.66.0, libcurl requires this option set to 1L to allow HTTP/0.9
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responses.
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# PROTOCOLS
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HTTP
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# EXAMPLE
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~~~c
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode ret;
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curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
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curl_easy_setopt(curl, CURLOPT_HTTP09_ALLOWED, 1L);
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ret = curl_easy_perform(curl);
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}
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}
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~~~
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# AVAILABILITY
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Option added in 7.64.0, present along with HTTP.
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# RETURN VALUE
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Returns CURLE_OK if HTTP is supported, and CURLE_UNKNOWN_OPTION if not.
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