summaryrefslogtreecommitdiffstats
blob: fa822e85939fd993cc5eec73a31bb272d077bf1b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
/* stringprep.h --- Header file for stringprep functions.
 * Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008  Simon Josefsson
 *
 * This file is part of GNU Libidn.
 *
 * GNU Libidn is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * GNU Libidn is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with GNU Libidn; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 *
 */

#ifndef STRINGPREP_H
# define STRINGPREP_H

# include <stddef.h>		/* size_t */
# include <unistd.h>		/* ssize_t */
# include <idn-int.h>		/* uint32_t */

/* Libidn Windows DLL.  Only needed when this file is used in Visual
   Studio.  Export and import happens automatically in MinGW. */
# ifndef IDNA_API
#  if defined(_MSC_VER) && !defined(IDNA_STATIC)
#   ifdef IDNA_EXPORTS
#    define IDNA_API __declspec(dllexport)
#   else
#    define IDNA_API __declspec(dllimport)
#   endif
#  else
#   define IDNA_API
#  endif
# endif

# ifdef __cplusplus
extern "C"
{
# endif

# define STRINGPREP_VERSION "1.11"

/* Error codes. */
  typedef enum
  {
    STRINGPREP_OK = 0,
    /* Stringprep errors. */
    STRINGPREP_CONTAINS_UNASSIGNED = 1,
    STRINGPREP_CONTAINS_PROHIBITED = 2,
    STRINGPREP_BIDI_BOTH_L_AND_RAL = 3,
    STRINGPREP_BIDI_LEADTRAIL_NOT_RAL = 4,
    STRINGPREP_BIDI_CONTAINS_PROHIBITED = 5,
    /* Error in calling application. */
    STRINGPREP_TOO_SMALL_BUFFER = 100,
    STRINGPREP_PROFILE_ERROR = 101,
    STRINGPREP_FLAG_ERROR = 102,
    STRINGPREP_UNKNOWN_PROFILE = 103,
    /* Internal errors. */
    STRINGPREP_NFKC_FAILED = 200,
    STRINGPREP_MALLOC_ERROR = 201
  } Stringprep_rc;

/* Flags used when calling stringprep(). */
  typedef enum
  {
    STRINGPREP_NO_NFKC = 1,
    STRINGPREP_NO_BIDI = 2,
    STRINGPREP_NO_UNASSIGNED = 4
  } Stringprep_profile_flags;

/* Steps in a stringprep profile. */
  typedef enum
  {
    STRINGPREP_NFKC = 1,
    STRINGPREP_BIDI = 2,
    STRINGPREP_MAP_TABLE = 3,
    STRINGPREP_UNASSIGNED_TABLE = 4,
    STRINGPREP_PROHIBIT_TABLE = 5,
    STRINGPREP_BIDI_PROHIBIT_TABLE = 6,
    STRINGPREP_BIDI_RAL_TABLE = 7,
    STRINGPREP_BIDI_L_TABLE = 8
  } Stringprep_profile_steps;

# define STRINGPREP_MAX_MAP_CHARS 4

  struct Stringprep_table_element
  {
    uint32_t start;
    uint32_t end;		/* 0 if only one character */
    uint32_t map[STRINGPREP_MAX_MAP_CHARS];	/* NULL if end is not 0 */
  };
  typedef struct Stringprep_table_element Stringprep_table_element;

  struct Stringprep_table
  {
    Stringprep_profile_steps operation;
    Stringprep_profile_flags flags;
    const Stringprep_table_element *table;
  };
  typedef struct Stringprep_table Stringprep_profile;

  struct Stringprep_profiles
  {
    const char *name;
    const Stringprep_profile *tables;
  };
  typedef struct Stringprep_profiles Stringprep_profiles;

  extern IDNA_API const Stringprep_profiles stringprep_profiles[];

/* Profiles */
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_A_1[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_B_1[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_B_2[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_B_3[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_1_1[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_1_2[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_2_1[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_2_2[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_3[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_4[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_5[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_6[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_7[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_8[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_C_9[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_D_1[];
  extern IDNA_API const Stringprep_table_element stringprep_rfc3454_D_2[];

  /* Nameprep */

  extern IDNA_API const Stringprep_profile stringprep_nameprep[];

# define stringprep_nameprep(in, maxlen)			\
  stringprep(in, maxlen, 0, stringprep_nameprep)

# define stringprep_nameprep_no_unassigned(in, maxlen)			\
  stringprep(in, maxlen, STRINGPREP_NO_UNASSIGNED, stringprep_nameprep)

  /* SASL */

  extern IDNA_API const Stringprep_profile stringprep_saslprep[];
  extern IDNA_API const Stringprep_profile stringprep_plain[];
  extern IDNA_API const Stringprep_profile stringprep_trace[];

# define stringprep_plain(in, maxlen)		\
  stringprep(in, maxlen, 0, stringprep_plain)

  /* Kerberos */

  extern IDNA_API const Stringprep_profile stringprep_kerberos5[];

# define stringprep_kerberos5(in, maxlen)		\
  stringprep(in, maxlen, 0, stringprep_kerberos5)

  /* XMPP */

  extern IDNA_API const Stringprep_profile stringprep_xmpp_nodeprep[];
  extern IDNA_API const Stringprep_profile stringprep_xmpp_resourceprep[];
  extern IDNA_API const Stringprep_table_element stringprep_xmpp_nodeprep_prohibit[];

# define stringprep_xmpp_nodeprep(in, maxlen)		\
  stringprep(in, maxlen, 0, stringprep_xmpp_nodeprep)
# define stringprep_xmpp_resourceprep(in, maxlen)		\
  stringprep(in, maxlen, 0, stringprep_xmpp_resourceprep)

  /* iSCSI */

  extern IDNA_API const Stringprep_profile stringprep_iscsi[];

# define stringprep_iscsi(in, maxlen)		\
  stringprep(in, maxlen, 0, stringprep_iscsi)

  /* API */

  extern IDNA_API int stringprep_4i (uint32_t * ucs4, size_t * len,
				     size_t maxucs4len,
				     Stringprep_profile_flags flags,
				     const Stringprep_profile * profile);
  extern IDNA_API int stringprep_4zi (uint32_t * ucs4, size_t maxucs4len,
				      Stringprep_profile_flags flags,
				      const Stringprep_profile * profile);
  extern IDNA_API int stringprep (char *in, size_t maxlen,
				  Stringprep_profile_flags flags,
				  const Stringprep_profile * profile);

  extern IDNA_API int stringprep_profile (const char *in,
					  char **out,
					  const char *profile,
					  Stringprep_profile_flags flags);

  extern IDNA_API const char *stringprep_strerror (Stringprep_rc rc);

  extern IDNA_API const char *stringprep_check_version (const char
							*req_version);

/* Utility */

  extern IDNA_API int stringprep_unichar_to_utf8 (uint32_t c, char *outbuf);
  extern IDNA_API uint32_t stringprep_utf8_to_unichar (const char *p);

  extern IDNA_API uint32_t *stringprep_utf8_to_ucs4 (const char *str,
						     ssize_t len,
						     size_t * items_written);
  extern IDNA_API char *stringprep_ucs4_to_utf8 (const uint32_t * str,
						 ssize_t len,
						 size_t * items_read,
						 size_t * items_written);

  extern IDNA_API char *stringprep_utf8_nfkc_normalize (const char *str,
							ssize_t len);
  extern IDNA_API uint32_t *stringprep_ucs4_nfkc_normalize (uint32_t * str,
							    ssize_t len);

  extern IDNA_API const char *stringprep_locale_charset (void);
  extern IDNA_API char *stringprep_convert (const char *str,
					    const char *to_codeset,
					    const char *from_codeset);
  extern IDNA_API char *stringprep_locale_to_utf8 (const char *str);
  extern IDNA_API char *stringprep_utf8_to_locale (const char *str);

# ifdef __cplusplus
}
# endif

#endif				/* STRINGPREP_H */