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2494b8dd51
- switch all invidual files documenting command line options into .md, as the documentation is now markdown-looking. - made the parser treat 4-space indents as quotes - switch to building the curl.1 manpage using the "mainpage.idx" file, which lists the files to include to generate it, instead of using the previous page-footer/headers. Also, those files are now also .md ones, using the same format. I gave them underscore prefixes to make them sort separately: _NAME.md, _SYNOPSIS.md, _DESCRIPTION.md, _URL.md, _GLOBBING.md, _VARIABLES.md, _OUTPUT.md, _PROTOCOLS.md, _PROGRESS.md, _VERSION.md, _OPTIONS.md, _FILES.md, _ENVIRONMENT.md, _PROXYPREFIX.md, _EXITCODES.md, _BUGS.md, _AUTHORS.md, _WWW.md, _SEEALSO.md - updated test cases accordingly Closes #12751
34 lines
775 B
Markdown
34 lines
775 B
Markdown
---
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c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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SPDX-License-Identifier: curl
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Long: http2
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Tags: Versions
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Protocols: HTTP
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Added: 7.33.0
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Mutexed: http1.1 http1.0 http2-prior-knowledge http3
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Requires: HTTP/2
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Help: Use HTTP/2
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Category: http
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Multi: mutex
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See-also:
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- http1.1
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- http3
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- no-alpn
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Example:
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- --http2 $URL
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---
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# `--http2`
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Tells curl to use HTTP version 2.
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For HTTPS, this means curl negotiates HTTP/2 in the TLS handshake. curl does
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this by default.
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For HTTP, this means curl attempts to upgrade the request to HTTP/2 using the
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Upgrade: request header.
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When curl uses HTTP/2 over HTTPS, it does not itself insist on TLS 1.2 or
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higher even though that is required by the specification. A user can add this
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version requirement with --tlsv1.2.
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