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/* stringprep.h Header file for stringprep functions. -*- c -*-
* Copyright (C) 2002, 2003, 2004 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef _STRINGPREP_H
#define _STRINGPREP_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <stddef.h> /* size_t */
#include <unistd.h> /* ssize_t */
#include <stdint.h> /* uint32_t */
#define STRINGPREP_VERSION "0.4.3"
/* 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 const Stringprep_profiles stringprep_profiles[];
/* Profiles */
extern const Stringprep_table_element stringprep_rfc3454_A_1[];
extern const Stringprep_table_element stringprep_rfc3454_B_1[];
extern const Stringprep_table_element stringprep_rfc3454_B_2[];
extern const Stringprep_table_element stringprep_rfc3454_B_3[];
extern const Stringprep_table_element stringprep_rfc3454_C_1_1[];
extern const Stringprep_table_element stringprep_rfc3454_C_1_2[];
extern const Stringprep_table_element stringprep_rfc3454_C_2_1[];
extern const Stringprep_table_element stringprep_rfc3454_C_2_2[];
extern const Stringprep_table_element stringprep_rfc3454_C_3[];
extern const Stringprep_table_element stringprep_rfc3454_C_4[];
extern const Stringprep_table_element stringprep_rfc3454_C_5[];
extern const Stringprep_table_element stringprep_rfc3454_C_6[];
extern const Stringprep_table_element stringprep_rfc3454_C_7[];
extern const Stringprep_table_element stringprep_rfc3454_C_8[];
extern const Stringprep_table_element stringprep_rfc3454_C_9[];
extern const Stringprep_table_element stringprep_rfc3454_D_1[];
extern const Stringprep_table_element stringprep_rfc3454_D_2[];
/* Nameprep */
extern 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 const Stringprep_profile stringprep_saslprep[];
extern const Stringprep_profile stringprep_plain[];
extern const Stringprep_profile stringprep_trace[];
#define stringprep_plain(in, maxlen) \
stringprep(in, maxlen, 0, stringprep_plain)
/* Kerberos */
extern const Stringprep_profile stringprep_kerberos5[];
#define stringprep_kerberos5(in, maxlen) \
stringprep(in, maxlen, 0, stringprep_kerberos5)
/* XMPP */
extern const Stringprep_profile stringprep_xmpp_nodeprep[];
extern const Stringprep_profile stringprep_xmpp_resourceprep[];
extern 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 const Stringprep_profile stringprep_iscsi[];
#define stringprep_iscsi(in, maxlen) \
stringprep(in, maxlen, 0, stringprep_iscsi)
/* API */
extern int stringprep_4i (uint32_t * ucs4, size_t * len, size_t maxucs4len,
Stringprep_profile_flags flags,
const Stringprep_profile * profile);
extern int stringprep_4zi (uint32_t * ucs4, size_t maxucs4len,
Stringprep_profile_flags flags,
const Stringprep_profile * profile);
extern int stringprep (char *in, size_t maxlen,
Stringprep_profile_flags flags,
const Stringprep_profile * profile);
extern int stringprep_profile (const char *in,
char **out,
const char *profile,
Stringprep_profile_flags flags);
extern const char *stringprep_check_version (const char *req_version);
/* Utility */
extern int stringprep_unichar_to_utf8 (uint32_t c, char *outbuf);
extern uint32_t stringprep_utf8_to_unichar (const char *p);
extern uint32_t *stringprep_utf8_to_ucs4 (const char *str, ssize_t len,
size_t * items_written);
extern char *stringprep_ucs4_to_utf8 (const uint32_t * str, ssize_t len,
size_t * items_read,
size_t * items_written);
extern char *stringprep_utf8_nfkc_normalize (const char *str, ssize_t len);
extern uint32_t *stringprep_ucs4_nfkc_normalize (uint32_t * str,
ssize_t len);
extern const char *stringprep_locale_charset (void);
extern char *stringprep_convert (const char *str,
const char *to_codeset,
const char *from_codeset);
extern char *stringprep_locale_to_utf8 (const char *str);
extern char *stringprep_utf8_to_locale (const char *str);
#ifdef __cplusplus
}
#endif
#endif /* _STRINGPREP_H */
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