6dd44caa35
Encode domain names before passing them on to the libc resolver. Some getaddrinfo() implementations support IDNA 2008, some only IDNA 2003 and some don't support i18n domain names at all. This is a potential security issue because it means a domain name might resolve differently depending on the system that libuv is running on. Fixes: https://github.com/libuv/libuv/issues/2028 PR-URL: https://github.com/libuv/libuv/pull/2046 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
32 lines
1.4 KiB
C
32 lines
1.4 KiB
C
/* Copyright (c) 2011, 2018 Ben Noordhuis <info@bnoordhuis.nl>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef UV_SRC_IDNA_H_
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#define UV_SRC_IDNA_H_
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/* Decode a single codepoint. Returns the codepoint or UINT32_MAX on error.
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* |p| is updated on success _and_ error, i.e., bad multi-byte sequences are
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* skipped in their entirety, not just the first bad byte.
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*/
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unsigned uv__utf8_decode1(const char** p, const char* pe);
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/* Convert a UTF-8 domain name to IDNA 2008 / Punycode. A return value >= 0
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* is the number of bytes written to |d|, including the trailing nul byte.
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* A return value < 0 is a libuv error code. |s| and |d| can not overlap.
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*/
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long uv__idna_toascii(const char* s, const char* se, char* d, char* de);
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#endif /* UV_SRC_IDNA_H_ */
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