libidn/idna.h

   1 /* idna.h       Declarations for IDNA.
   2  * Copyright (C) 2002, 2003, 2004  Simon Josefsson
   3  *
   4  * This file is part of GNU Libidn.
   5  *
   6  * GNU Libidn 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  * GNU Libidn 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 GNU Libidn; 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 #include <stddef.h>             /* size_t */
  31 #include <stdint.h>             /* uint32_t */
  32
  33   /* Error codes. */
  34   typedef enum
  35   {
  36     IDNA_SUCCESS = 0,
  37     IDNA_STRINGPREP_ERROR = 1,
  38     IDNA_PUNYCODE_ERROR = 2,
  39     IDNA_CONTAINS_NON_LDH = 3,
  40     /* Workaround typo in earlier versions. */
  41     IDNA_CONTAINS_LDH = IDNA_CONTAINS_NON_LDH,
  42     IDNA_CONTAINS_MINUS = 4,
  43     IDNA_INVALID_LENGTH = 5,
  44     IDNA_NO_ACE_PREFIX = 6,
  45     IDNA_ROUNDTRIP_VERIFY_ERROR = 7,
  46     IDNA_CONTAINS_ACE_PREFIX = 8,
  47     IDNA_ICONV_ERROR = 9,
  48     /* Internal errors. */
  49     IDNA_MALLOC_ERROR = 201,
  50     IDNA_DLOPEN_ERROR = 202
  51   } Idna_rc;
  52
  53   /* IDNA flags */
  54   typedef enum
  55   {
  56     IDNA_ALLOW_UNASSIGNED = 0x0001,
  57     IDNA_USE_STD3_ASCII_RULES = 0x0002
  58   } Idna_flags;
  59
  60 #ifndef IDNA_ACE_PREFIX
  61 #define IDNA_ACE_PREFIX "xn--"
  62 #endif
  63
  64   /* Core functions */
  65   extern int idna_to_ascii_4i (const uint32_t * in, size_t inlen,
  66                                char *out, int flags);
  67   extern int idna_to_unicode_44i (const uint32_t * in, size_t inlen,
  68                                   uint32_t * out, size_t * outlen, int flags);
  69
  70   /* Wrappers that handle several labels */
  71
  72   extern int idna_to_ascii_4z (const uint32_t * input,
  73                                char **output, int flags);
  74
  75   extern int idna_to_ascii_8z (const char *input, char **output, int flags);
  76
  77   extern int idna_to_ascii_lz (const char *input, char **output, int flags);
  78
  79
  80   extern int idna_to_unicode_4z4z (const uint32_t * input,
  81                                    uint32_t ** output, int flags);
  82
  83   extern int idna_to_unicode_8z4z (const char *input,
  84                                    uint32_t ** output, int flags);
  85
  86   extern int idna_to_unicode_8z8z (const char *input,
  87                                    char **output, int flags);
  88
  89   extern int idna_to_unicode_8zlz (const char *input,
  90                                    char **output, int flags);
  91
  92   extern int idna_to_unicode_lzlz (const char *input,
  93                                    char **output, int flags);
  94
  95 #ifdef __cplusplus
  96 }
  97 #endif
  98 #endif                          /* _PUNYCODE_H */