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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

Character encoding conversion error.

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 <help-libidn@gnu.org>.

General guidelines for reporting bugs: https://www.gnu.org/gethelp/

GNU Libidn home page: https://www.gnu.org/software/libidn/

COPYRIGHT

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.