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idna_strerror(3)                    libidn                    idna_strerror(3)



NAME
       idna_strerror - API function

SYNOPSIS
       #include <idna.h>

       const char * idna_strerror(Idna_rc rc);

ARGUMENTS
       Idna_rc rc  an Idna_rc return code.

DESCRIPTION
       Convert  a return code integer to a text string.  This string can be used to output a diagnostic message to the
       user.

IDNA_SUCCESS
       Successful operation.  This value is guaranteed to always be zero, the remaining ones are  only  guaranteed  to
       hold non-zero values, for logical comparison purposes.

IDNA_STRINGPREP_ERROR
       Error during string preparation.

IDNA_PUNYCODE_ERROR
       Error during punycode operation.

IDNA_CONTAINS_NON_LDH
       For IDNA_USE_STD3_ASCII_RULES, indicate that the string contains non-LDH ASCII characters.

IDNA_CONTAINS_MINUS
       For IDNA_USE_STD3_ASCII_RULES, indicate that the string contains a leading or trailing hyphen-minus (U+002D).

IDNA_INVALID_LENGTH
       The final output string is not within the (inclusive) range 1 to 63 characters.

IDNA_NO_ACE_PREFIX
       The string does not contain the ACE prefix (for ToUnicode).

IDNA_ROUNDTRIP_VERIFY_ERROR
       The ToASCII operation on output string does not equal the input.

IDNA_CONTAINS_ACE_PREFIX
       The input contains the ACE prefix (for ToASCII).

IDNA_ICONV_ERROR
       Could not convert string in locale encoding.

IDNA_MALLOC_ERROR
       Could not allocate buffer (this is typically a fatal error).

IDNA_DLOPEN_ERROR
       Could not dlopen the libcidn DSO (only used internally in libc).

RETURN VALUE
       Returns  a  pointer to a statically allocated string containing a description of the error with the return code
       rc.

REPORTING BUGS
       Report bugs to <bug-libidnATgnu.org>.  GNU Libidn home page:  http://www.gnu.org/software/libidn/  General  help
       using GNU software: http://www.gnu.org/gethelp/

COPYRIGHT
       Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Simon Josefsson.
       Copying  and  distribution  of  this  file,  with  or without modification, are permitted in any medium without
       royalty provided the copyright notice and this notice are preserved.

SEE ALSO
       The full documentation for libidn is maintained as a Texinfo manual.  If the info and libidn programs are prop-
       erly installed at your site, the command

              info libidn

       should give you access to the complete manual.



libidn                               1.18                     idna_strerror(3)