1 /* $NetBSD: nameprep_template.c,v 1.4 2014/12/10 04:37:55 christos Exp $ */ 2 3 /* Id: nameprep_template.c,v 1.1 2003/06/04 00:25:57 marka Exp */ 4 5 /* 6 * Copyright (c) 2001 Japan Network Information Center. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set forth bellow. 9 * 10 * LICENSE TERMS AND CONDITIONS 11 * 12 * The following License Terms and Conditions apply, unless a different 13 * license is obtained from Japan Network Information Center ("JPNIC"), 14 * a Japanese association, Kokusai-Kougyou-Kanda Bldg 6F, 2-3-4 Uchi-Kanda, 15 * Chiyoda-ku, Tokyo 101-0047, Japan. 16 * 17 * 1. Use, Modification and Redistribution (including distribution of any 18 * modified or derived work) in source and/or binary forms is permitted 19 * under this License Terms and Conditions. 20 * 21 * 2. Redistribution of source code must retain the copyright notices as they 22 * appear in each source code file, this License Terms and Conditions. 23 * 24 * 3. Redistribution in binary form must reproduce the Copyright Notice, 25 * this License Terms and Conditions, in the documentation and/or other 26 * materials provided with the distribution. For the purposes of binary 27 * distribution the "Copyright Notice" refers to the following language: 28 * "Copyright (c) 2000-2002 Japan Network Information Center. All rights reserved." 29 * 30 * 4. The name of JPNIC may not be used to endorse or promote products 31 * derived from this Software without specific prior written approval of 32 * JPNIC. 33 * 34 * 5. Disclaimer/Limitation of Liability: THIS SOFTWARE IS PROVIDED BY JPNIC 35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 37 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JPNIC BE LIABLE 38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 39 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 40 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 41 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 42 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 43 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 44 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 45 */ 46 47 /* 48 * Include this file once for each version of NAMEPREP. 49 * VERSION should be defined to appropriate value before inclusion. 50 */ 51 52 #ifndef NAMEPREP_TEMPLATE_INIT 53 #define NAMEPREP_TEMPLATE_INIT 54 55 /* Symbol composition. */ 56 #define compose_sym2(a, b) compose_sym2X(a, b) 57 #define compose_sym2X(a, b) a ## b 58 #define compose_sym3(a, b, c) compose_sym3X(a, b, c) 59 #define compose_sym3X(a, b, c) a ## b ## c 60 61 /* Index calculation for multi-level index tables. */ 62 #define IDX0(type, v) IDX_0(v, BITS1(type), BITS2(type)) 63 #define IDX1(type, v) IDX_1(v, BITS1(type), BITS2(type)) 64 #define IDX2(type, v) IDX_2(v, BITS1(type), BITS2(type)) 65 66 #define IDX_0(v, bits1, bits2) ((v) >> ((bits1) + (bits2))) 67 #define IDX_1(v, bits1, bits2) (((v) >> (bits2)) & ((1 << (bits1)) - 1)) 68 #define IDX_2(v, bits1, bits2) ((v) & ((1 << (bits2)) - 1)) 69 70 #define BITS1(type) type ## _BITS_1 71 #define BITS2(type) type ## _BITS_2 72 73 #endif /* NAMEPREP_TEMPLATE_INIT */ 74 75 static const char * 76 compose_sym2(nameprep_map_, VERSION) (unsigned long v) { 77 int idx0 = IDX0(MAP, v); 78 int idx1 = IDX1(MAP, v); 79 int idx2 = IDX2(MAP, v); 80 int offset; 81 82 #define IMAP compose_sym3(nameprep_, VERSION, _map_imap) 83 #define TABLE compose_sym3(nameprep_, VERSION, _map_table) 84 #define DATA compose_sym3(nameprep_, VERSION, _map_data) 85 offset = TABLE[IMAP[IMAP[idx0] + idx1]].tbl[idx2]; 86 if (offset == 0) 87 return (NULL); /* no mapping */ 88 return (const char *)(DATA + offset); 89 #undef IMAP 90 #undef TABLE 91 #undef DATA 92 } 93 94 static int 95 compose_sym2(nameprep_prohibited_, VERSION) (unsigned long v) { 96 int idx0 = IDX0(PROH, v); 97 int idx1 = IDX1(PROH, v); 98 int idx2 = IDX2(PROH, v); 99 const unsigned char *bm; 100 101 #define IMAP compose_sym3(nameprep_, VERSION, _prohibited_imap) 102 #define BITMAP compose_sym3(nameprep_, VERSION, _prohibited_bitmap) 103 bm = BITMAP[IMAP[IMAP[idx0] + idx1]].bm; 104 return (bm[idx2 / 8] & (1 << (idx2 % 8))); 105 #undef IMAP 106 #undef BITMAP 107 } 108 109 static int 110 compose_sym2(nameprep_unassigned_, VERSION) (unsigned long v) { 111 int idx0 = IDX0(UNAS, v); 112 int idx1 = IDX1(UNAS, v); 113 int idx2 = IDX2(UNAS, v); 114 const unsigned char *bm; 115 116 #define IMAP compose_sym3(nameprep_, VERSION, _unassigned_imap) 117 #define BITMAP compose_sym3(nameprep_, VERSION, _unassigned_bitmap) 118 bm = BITMAP[IMAP[IMAP[idx0] + idx1]].bm; 119 return (bm[idx2 / 8] & (1 << (idx2 % 8))); 120 #undef IMAP 121 #undef BITMAP 122 } 123 124 static idn_biditype_t 125 compose_sym2(nameprep_biditype_, VERSION) (unsigned long v) { 126 int idx0 = IDX0(BIDI, v); 127 int idx1 = IDX1(BIDI, v); 128 int idx2 = IDX2(BIDI, v); 129 int offset; 130 131 #define IMAP compose_sym3(nameprep_, VERSION, _bidi_imap) 132 #define TABLE compose_sym3(nameprep_, VERSION, _bidi_table) 133 #define DATA compose_sym3(nameprep_, VERSION, _bidi_data) 134 offset = TABLE[IMAP[IMAP[idx0] + idx1]].tbl[idx2]; 135 return DATA[offset]; 136 #undef IMAP 137 #undef TABLE 138 #undef DATA 139 } 140