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MAN page from Fedora 23 libidn-devel-1.33-1.fc23.i686.rpm

idna_to_ascii_4i

Section: libidn (3)
Updated: 1.33
Index 

NAME

idna_to_ascii_4i - API function 

SYNOPSIS

#include <idna.h>

int idna_to_ascii_4i(const uint32_t * in, size_t inlen, char * out, int flags); 

ARGUMENTS

const uint32_t * in
input array with unicode code points.
size_t inlen
length of input array with unicode code points.
char * out
output zero terminated string that must have room for atleast 63 characters plus the terminating zero.
int flags
an Idna_flags value, e.g., IDNA_ALLOW_UNASSIGNED orIDNA_USE_STD3_ASCII_RULES.
 

DESCRIPTION

The ToASCII operation takes a sequence of Unicode code points thatmake up one domain label and transforms it into a sequence of codepoints in the ASCII range (0..7F). If ToASCII succeeds, theoriginal sequence and the resulting sequence are equivalent labels.

It is important to note that the ToASCII operation can fail. ToASCIIfails if any step of it fails. If any step of the ToASCII operationfails on any label in a domain name, that domain name MUST NOT be usedas an internationalized domain name. The method for deadling with thisfailure is application-specific.

The inputs to ToASCII are a sequence of code points, the AllowUnassignedflag, and the UseSTD3ASCIIRules flag. The output of ToASCII is either asequence of ASCII code points or a failure condition.

ToASCII never alters a sequence of code points that are all in the ASCIIrange to begin with (although it could fail). Applying the ToASCIIoperation multiple times has exactly the same effect as applying it justonce.

Return value: Returns 0 on success, or an Idna_rc error code. 

REPORTING BUGS

Report bugs to <bug-libidnAATTgnu.org>.
General guidelines for reporting bugs: http://www.gnu.org/gethelp/
GNU Libidn home page: http://www.gnu.org/software/libidn/

 

COPYRIGHT

Copyright © 2002-2016 Simon Josefsson.
Copying and distribution of this file, with or without modification,are permitted in any medium without royalty provided the copyrightnotice and this notice are preserved. 

SEE ALSO

The full documentation forlibidnis maintained as a Texinfo manual. If theinfoandlibidnprograms are properly installed at your site, the command
info libidn

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

http://www.gnu.org/software/libidn/manual/


 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
REPORTING BUGS
COPYRIGHT
SEE ALSO

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