be76b32aed
Add comments to clarify that a terminating null is always present in
the buffers returned to the caller.
The curl APIs `win32_idn_to_ascii()` or `win32_ascii_to_idn()` receive
a null-terminated UTF-8 string as input. They first convert it to wide
chars by first asking `MultiByteToWideChar()` to calculate the length,
by passing -1. This API returns the length with the null char included
(= `strlen() + 1`), does the conversion, with the output also
null-terminated. `IdnTo*()` preserve this null character as documented.
Then we pass this null-terminated, fixed-length buffer ito
`WideCharToMultiByte()`, which keeps preserving the null, ending up in
the buffer returned to the caller.
Refs:
https://learn.microsoft.com/windows/win32/api/stringapiset/nf-stringapiset-multibytetowidechar
https://learn.microsoft.com/windows/win32/api/stringapiset/nf-stringapiset-widechartomultibyte
https://learn.microsoft.com/windows/win32/api/winnls/nf-winnls-idntoascii
https://learn.microsoft.com/windows/win32/api/winnls/nf-winnls-idntounicode
WINE source code:
https://gitlab.winehq.org/wine/wine/-/blob/wine-10.20/dlls/kernelbase/locale.c
https://gitlab.winehq.org/wine/wine/-/blob/wine-10.20/dlls/ntdll/locale.c
https://gitlab.winehq.org/wine/wine/-/blob/wine-10.20/dlls/ntdll/locale_private.h
Ref: https://github.com/curl/curl/pull/19976#issuecomment-3656005765
Follow-up to
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| .github | ||
| CMake | ||
| docs | ||
| include | ||
| lib | ||
| LICENSES | ||
| m4 | ||
| packages | ||
| plan9 | ||
| projects | ||
| scripts | ||
| src | ||
| tests | ||
| .dir-locals.el | ||
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| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| acinclude.m4 | ||
| appveyor.sh | ||
| appveyor.yml | ||
| buildconf | ||
| CHANGES.md | ||
| CMakeLists.txt | ||
| configure.ac | ||
| COPYING | ||
| curl-config.in | ||
| Dockerfile | ||
| GIT-INFO.md | ||
| libcurl.pc.in | ||
| Makefile.am | ||
| README | ||
| README.md | ||
| RELEASE-NOTES | ||
| renovate.json | ||
| REUSE.toml | ||
| SECURITY.md | ||
curl is a command-line tool for transferring data from or to a server using URLs. It supports these protocols: DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, POP3, POP3S, RTMP, RTMPS, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS.
Learn how to use curl by reading the man page or everything curl.
Find out how to install curl by reading the INSTALL document.
libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl man page to learn how.
Open Source
curl is Open Source and is distributed under an MIT-like license.
Contact
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git clone https://github.com/curl/curl
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