idna.h

   1 /* idna.h       Declarations for IDNA.
   2  * Copyright (C) 2002  Simon Josefsson
   3  *
   4  * This file is part of Libstringprep.
   5  *
   6  * Libstringprep is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * Libstringprep is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with Libstringprep; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef _IDNA_H
  23 #define _IDNA_H
  24
  25 #ifdef __cplusplus
  26 extern "C"
  27 {
  28 #endif
  29
  30   /* Error codes. */
  31   enum
  32   {
  33     IDNA_SUCCESS = 0,
  34     IDNA_STRINGPREP_ERROR = 1,
  35     IDNA_PUNYCODE_ERROR = 2,
  36     IDNA_CONTAINS_LDH = 3,
  37     IDNA_CONTAINS_MINUS = 4,
  38     IDNA_INVALID_LENGTH = 5,
  39     IDNA_NO_ACE_PREFIX = 6,
  40     IDNA_ROUNDTRIP_VERIFY_ERROR = 7,
  41     /* Internal errors. */
  42     IDNA_MALLOC_ERROR = 201
  43   };
  44
  45 #ifndef IDNA_ACE_PREFIX
  46 #define IDNA_ACE_PREFIX "iesg--"
  47 #endif
  48
  49   int idna_to_ascii (const unsigned long *in, size_t inlen,
  50                      char *out, int allowunassigned, int usestd3asciirules);
  51
  52   int idna_to_unicode (const unsigned long *in, size_t inlen,
  53                        unsigned long *out, size_t * outlen,
  54                        int allowunassigned, int usestd3asciirules);
  55
  56 #ifdef __cplusplus
  57 }
  58 #endif
  59 #endif                          /* _PUNYCODE_H */