1 /* $NetBSD: ldap_pvt_uc.h,v 1.4 2025/09/05 21:16:19 christos Exp $ */ 2 3 /* $OpenLDAP$ */ 4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1998-2024 The OpenLDAP Foundation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17 18 /* 19 * ldap_pvt_uc.h - Header for Unicode functions. 20 * These are meant to be used by the OpenLDAP distribution only. 21 * These should be named ldap_pvt_....() 22 */ 23 24 #ifndef _LDAP_PVT_UC_H 25 #define _LDAP_PVT_UC_H 1 26 27 #include <lber.h> /* get ber_slen_t */ 28 29 #include <ac/bytes.h> 30 #include "../libraries/liblunicode/ucdata/ucdata.h" 31 32 LDAP_BEGIN_DECL 33 34 /* 35 * UTF-8 (in utf-8.c) 36 */ 37 38 /* UCDATA uses UCS-2 passed in a 4 byte unsigned int */ 39 typedef ac_uint4 ldap_unicode_t; 40 41 /* Convert a string with csize octets per character to UTF-8 */ 42 LDAP_F( int ) ldap_ucs_to_utf8s LDAP_P(( 43 struct berval *ucs, int csize, struct berval *utf8s )); 44 45 46 /* returns the number of bytes in the UTF-8 string */ 47 LDAP_F (ber_len_t) ldap_utf8_bytes( const char * ); 48 /* returns the number of UTF-8 characters in the string */ 49 LDAP_F (ber_len_t) ldap_utf8_chars( const char * ); 50 /* returns the length (in bytes) of the UTF-8 character */ 51 LDAP_F (int) ldap_utf8_offset( const char * ); 52 /* returns the length (in bytes) indicated by the UTF-8 character */ 53 LDAP_F (int) ldap_utf8_charlen( const char * ); 54 55 /* returns the length (in bytes) indicated by the UTF-8 character 56 * also checks that shortest possible encoding was used 57 */ 58 LDAP_F (int) ldap_utf8_charlen2( const char * ); 59 60 /* copies a UTF-8 character and returning number of bytes copied */ 61 LDAP_F (int) ldap_utf8_copy( char *, const char *); 62 63 /* returns pointer of next UTF-8 character in string */ 64 LDAP_F (char*) ldap_utf8_next( const char * ); 65 /* returns pointer of previous UTF-8 character in string */ 66 LDAP_F (char*) ldap_utf8_prev( const char * ); 67 68 /* primitive ctype routines -- not aware of non-ascii characters */ 69 LDAP_F (int) ldap_utf8_isascii( const char * ); 70 LDAP_F (int) ldap_utf8_isalpha( const char * ); 71 LDAP_F (int) ldap_utf8_isalnum( const char * ); 72 LDAP_F (int) ldap_utf8_isdigit( const char * ); 73 LDAP_F (int) ldap_utf8_isxdigit( const char * ); 74 LDAP_F (int) ldap_utf8_isspace( const char * ); 75 76 /* span characters not in set, return bytes spanned */ 77 LDAP_F (ber_len_t) ldap_utf8_strcspn( const char* str, const char *set); 78 /* span characters in set, return bytes spanned */ 79 LDAP_F (ber_len_t) ldap_utf8_strspn( const char* str, const char *set); 80 /* return first occurrence of character in string */ 81 LDAP_F (char *) ldap_utf8_strchr( const char* str, const char *chr); 82 /* return first character of set in string */ 83 LDAP_F (char *) ldap_utf8_strpbrk( const char* str, const char *set); 84 /* reentrant tokenizer */ 85 LDAP_F (char*) ldap_utf8_strtok( char* sp, const char* sep, char **last); 86 87 /* Optimizations */ 88 LDAP_V (const char) ldap_utf8_lentab[128]; 89 LDAP_V (const char) ldap_utf8_mintab[32]; 90 91 #define LDAP_UTF8_ISASCII(p) ( !(*(const unsigned char *)(p) & 0x80 ) ) 92 #define LDAP_UTF8_CHARLEN(p) ( LDAP_UTF8_ISASCII(p) \ 93 ? 1 : ldap_utf8_lentab[*(const unsigned char *)(p) ^ 0x80] ) 94 95 /* This is like CHARLEN but additionally validates to make sure 96 * the char used the shortest possible encoding. 97 * 'l' is used to temporarily hold the result of CHARLEN. 98 */ 99 #define LDAP_UTF8_CHARLEN2(p, l) ( ( ( l = LDAP_UTF8_CHARLEN( p )) < 3 || \ 100 ( ldap_utf8_mintab[*(const unsigned char *)(p) & 0x1f] & (p)[1] ) ) ? \ 101 l : 0 ) 102 103 #define LDAP_UTF8_OFFSET(p) ( LDAP_UTF8_ISASCII(p) \ 104 ? 1 : ldap_utf8_offset((p)) ) 105 106 #define LDAP_UTF8_COPY(d,s) ( LDAP_UTF8_ISASCII(s) \ 107 ? (*(d) = *(s), 1) : ldap_utf8_copy((d),(s)) ) 108 109 #define LDAP_UTF8_NEXT(p) ( LDAP_UTF8_ISASCII(p) \ 110 ? (char *)(p)+1 : ldap_utf8_next((p)) ) 111 112 #define LDAP_UTF8_INCR(p) ((p) = LDAP_UTF8_NEXT(p)) 113 114 /* For symmetry */ 115 #define LDAP_UTF8_PREV(p) (ldap_utf8_prev((p))) 116 #define LDAP_UTF8_DECR(p) ((p)=LDAP_UTF8_PREV((p))) 117 118 119 /* these probably should be renamed */ 120 LDAP_LUNICODE_F(int) ucstrncmp( 121 const ldap_unicode_t *, 122 const ldap_unicode_t *, 123 ber_len_t ); 124 125 LDAP_LUNICODE_F(int) ucstrncasecmp( 126 const ldap_unicode_t *, 127 const ldap_unicode_t *, 128 ber_len_t ); 129 130 LDAP_LUNICODE_F(ldap_unicode_t *) ucstrnchr( 131 const ldap_unicode_t *, 132 ber_len_t, 133 ldap_unicode_t ); 134 135 LDAP_LUNICODE_F(ldap_unicode_t *) ucstrncasechr( 136 const ldap_unicode_t *, 137 ber_len_t, 138 ldap_unicode_t ); 139 140 LDAP_LUNICODE_F(void) ucstr2upper( 141 ldap_unicode_t *, 142 ber_len_t ); 143 144 #define LDAP_UTF8_NOCASEFOLD 0x0U 145 #define LDAP_UTF8_CASEFOLD 0x1U 146 #define LDAP_UTF8_ARG1NFC 0x2U 147 #define LDAP_UTF8_ARG2NFC 0x4U 148 #define LDAP_UTF8_APPROX 0x8U 149 150 LDAP_LUNICODE_F(struct berval *) UTF8bvnormalize( 151 struct berval *, 152 struct berval *, 153 unsigned, 154 void *memctx ); 155 156 LDAP_LUNICODE_F(int) UTF8bvnormcmp( 157 struct berval *, 158 struct berval *, 159 unsigned, 160 void *memctx ); 161 162 LDAP_END_DECL 163 164 #endif 165 166
Indexes created Tue Feb 24 08:35:24 UTC 2026