idn2_lookup_ul man page

idn2_lookup_ul — API function

Synopsis

#include <idn2.h>

int idn2_lookup_ul(const char * src, char ** lookupname, int flags);

Arguments

const char * src
input zero-terminated locale encoded string.
char ** lookupname
newly allocated output variable with name to lookup in DNS.
int flags
optional idn2_flags to modify behaviour.

Description

Perform IDNA2008 lookup string conversion on domain name src , as described in section 5 of RFC 5891. Note that the input is assumed to be encoded in the locale's default coding system, and will be transcoded to UTF-8 and NFC normalized by this function.

Pass IDN2_ALABEL_ROUNDTRIP in flags to convert any input A-labels to U-labels and perform additional testing.

Returns

On successful conversion IDN2_OK is returned, if conversion from locale to UTF-8 fails then IDN2_ICONV_FAIL is returned, if the output domain or any label would have been too long IDN2_TOO_BIG_DOMAIN or IDN2_TOO_BIG_LABEL is returned, or another error code is returned.

See Also

The full documentation for libidn2 is maintained as a Texinfo manual. If the info and libidn2 programs are properly installed at your site, the command

info libidn2

should give you access to the complete manual. As an alternative you may obtain the manual from:

http://www.gnu.org/software/libidn2/man…

Info

0.11 libidn2 libidn2