210 lines
6.8 KiB
C
210 lines
6.8 KiB
C
/* stringprep.h Header file for stringprep functions. -*- c -*-
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* Copyright (C) 2002, 2003, 2004 Simon Josefsson
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*
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* This file is part of GNU Libidn.
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*
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* GNU Libidn is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* GNU Libidn is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with GNU Libidn; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _STRINGPREP_H
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#define _STRINGPREP_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stddef.h> /* size_t */
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#include <unistd.h> /* ssize_t */
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#include <stdint.h> /* uint32_t */
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#define STRINGPREP_VERSION "0.4.3"
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/* Error codes. */
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typedef enum
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{
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STRINGPREP_OK = 0,
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/* Stringprep errors. */
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STRINGPREP_CONTAINS_UNASSIGNED = 1,
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STRINGPREP_CONTAINS_PROHIBITED = 2,
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STRINGPREP_BIDI_BOTH_L_AND_RAL = 3,
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STRINGPREP_BIDI_LEADTRAIL_NOT_RAL = 4,
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STRINGPREP_BIDI_CONTAINS_PROHIBITED = 5,
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/* Error in calling application. */
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STRINGPREP_TOO_SMALL_BUFFER = 100,
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STRINGPREP_PROFILE_ERROR = 101,
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STRINGPREP_FLAG_ERROR = 102,
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STRINGPREP_UNKNOWN_PROFILE = 103,
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/* Internal errors. */
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STRINGPREP_NFKC_FAILED = 200,
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STRINGPREP_MALLOC_ERROR = 201
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} Stringprep_rc;
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/* Flags used when calling stringprep(). */
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typedef enum
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{
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STRINGPREP_NO_NFKC = 1,
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STRINGPREP_NO_BIDI = 2,
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STRINGPREP_NO_UNASSIGNED = 4
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} Stringprep_profile_flags;
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/* Steps in a stringprep profile. */
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typedef enum
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{
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STRINGPREP_NFKC = 1,
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STRINGPREP_BIDI = 2,
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STRINGPREP_MAP_TABLE = 3,
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STRINGPREP_UNASSIGNED_TABLE = 4,
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STRINGPREP_PROHIBIT_TABLE = 5,
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STRINGPREP_BIDI_PROHIBIT_TABLE = 6,
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STRINGPREP_BIDI_RAL_TABLE = 7,
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STRINGPREP_BIDI_L_TABLE = 8
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} Stringprep_profile_steps;
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#define STRINGPREP_MAX_MAP_CHARS 4
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struct Stringprep_table_element
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{
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uint32_t start;
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uint32_t end; /* 0 if only one character */
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uint32_t map[STRINGPREP_MAX_MAP_CHARS]; /* NULL if end is not 0 */
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};
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typedef struct Stringprep_table_element Stringprep_table_element;
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struct Stringprep_table
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{
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Stringprep_profile_steps operation;
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Stringprep_profile_flags flags;
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const Stringprep_table_element *table;
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};
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typedef struct Stringprep_table Stringprep_profile;
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struct Stringprep_profiles
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{
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const char *name;
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const Stringprep_profile *tables;
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};
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typedef struct Stringprep_profiles Stringprep_profiles;
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extern const Stringprep_profiles stringprep_profiles[];
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/* Profiles */
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extern const Stringprep_table_element stringprep_rfc3454_A_1[];
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extern const Stringprep_table_element stringprep_rfc3454_B_1[];
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extern const Stringprep_table_element stringprep_rfc3454_B_2[];
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extern const Stringprep_table_element stringprep_rfc3454_B_3[];
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extern const Stringprep_table_element stringprep_rfc3454_C_1_1[];
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extern const Stringprep_table_element stringprep_rfc3454_C_1_2[];
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extern const Stringprep_table_element stringprep_rfc3454_C_2_1[];
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extern const Stringprep_table_element stringprep_rfc3454_C_2_2[];
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extern const Stringprep_table_element stringprep_rfc3454_C_3[];
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extern const Stringprep_table_element stringprep_rfc3454_C_4[];
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extern const Stringprep_table_element stringprep_rfc3454_C_5[];
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extern const Stringprep_table_element stringprep_rfc3454_C_6[];
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extern const Stringprep_table_element stringprep_rfc3454_C_7[];
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extern const Stringprep_table_element stringprep_rfc3454_C_8[];
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extern const Stringprep_table_element stringprep_rfc3454_C_9[];
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extern const Stringprep_table_element stringprep_rfc3454_D_1[];
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extern const Stringprep_table_element stringprep_rfc3454_D_2[];
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/* Nameprep */
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extern const Stringprep_profile stringprep_nameprep[];
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#define stringprep_nameprep(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_nameprep)
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#define stringprep_nameprep_no_unassigned(in, maxlen) \
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stringprep(in, maxlen, STRINGPREP_NO_UNASSIGNED, stringprep_nameprep)
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/* SASL */
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extern const Stringprep_profile stringprep_saslprep[];
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extern const Stringprep_profile stringprep_plain[];
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extern const Stringprep_profile stringprep_trace[];
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#define stringprep_plain(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_plain)
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/* Kerberos */
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extern const Stringprep_profile stringprep_kerberos5[];
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#define stringprep_kerberos5(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_kerberos5)
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/* XMPP */
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extern const Stringprep_profile stringprep_xmpp_nodeprep[];
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extern const Stringprep_profile stringprep_xmpp_resourceprep[];
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extern const Stringprep_table_element stringprep_xmpp_nodeprep_prohibit[];
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#define stringprep_xmpp_nodeprep(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_xmpp_nodeprep)
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#define stringprep_xmpp_resourceprep(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_xmpp_resourceprep)
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/* iSCSI */
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extern const Stringprep_profile stringprep_iscsi[];
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#define stringprep_iscsi(in, maxlen) \
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stringprep(in, maxlen, 0, stringprep_iscsi)
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/* API */
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extern int stringprep_4i (uint32_t * ucs4, size_t * len, size_t maxucs4len,
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Stringprep_profile_flags flags,
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const Stringprep_profile * profile);
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extern int stringprep_4zi (uint32_t * ucs4, size_t maxucs4len,
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Stringprep_profile_flags flags,
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const Stringprep_profile * profile);
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extern int stringprep (char *in, size_t maxlen,
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Stringprep_profile_flags flags,
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const Stringprep_profile * profile);
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extern int stringprep_profile (const char *in,
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char **out,
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const char *profile,
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Stringprep_profile_flags flags);
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extern const char *stringprep_check_version (const char *req_version);
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/* Utility */
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extern int stringprep_unichar_to_utf8 (uint32_t c, char *outbuf);
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extern uint32_t stringprep_utf8_to_unichar (const char *p);
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extern uint32_t *stringprep_utf8_to_ucs4 (const char *str, ssize_t len,
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size_t * items_written);
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extern char *stringprep_ucs4_to_utf8 (const uint32_t * str, ssize_t len,
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size_t * items_read,
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size_t * items_written);
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extern char *stringprep_utf8_nfkc_normalize (const char *str, ssize_t len);
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extern uint32_t *stringprep_ucs4_nfkc_normalize (uint32_t * str,
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ssize_t len);
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extern const char *stringprep_locale_charset (void);
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extern char *stringprep_convert (const char *str,
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const char *to_codeset,
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const char *from_codeset);
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extern char *stringprep_locale_to_utf8 (const char *str);
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extern char *stringprep_utf8_to_locale (const char *str);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _STRINGPREP_H */
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