1 | /* |
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2 | * Copyright (c) 2003-2004, Artem B. Bityuckiy |
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3 | * Copyright (c) 1999,2000, Konstantin Chuguev. All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | #include "cesbi.h" |
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27 | |
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28 | #if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL) \ |
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29 | || defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL) |
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30 | |
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31 | #include <_ansi.h> |
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32 | #include <reent.h> |
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33 | #include <stdlib.h> |
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34 | #include <string.h> |
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35 | #include <sys/types.h> |
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36 | #include "../lib/local.h" |
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37 | #include "../lib/ucsconv.h" |
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38 | #include "../lib/endian.h" |
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39 | |
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40 | /* |
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41 | * Internal 4-byte representation of UCS-2 codes without restrictions and |
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42 | * without BOM support. |
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43 | */ |
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44 | |
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45 | #if defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL) |
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46 | static size_t |
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47 | ucs_4_internal_convert_from_ucs (void *data, |
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48 | register ucs4_t in, |
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49 | unsigned char **outbuf, |
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50 | size_t *outbytesleft) |
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51 | { |
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52 | if (in > 0x7FFFFFFF) |
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53 | return (size_t)ICONV_CES_INVALID_CHARACTER; |
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54 | |
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55 | if (*outbytesleft < sizeof (ucs4_t)) |
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56 | return (size_t)ICONV_CES_NOSPACE; |
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57 | |
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58 | *((ucs4_t *)(*outbuf)) = in; |
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59 | *outbytesleft -= sizeof (ucs4_t); |
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60 | *outbuf += sizeof (ucs4_t); |
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61 | |
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62 | return sizeof (ucs4_t); |
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63 | } |
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64 | #endif /* ICONV_FROM_UCS_CES_UCS_4_INTERNAL */ |
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65 | |
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66 | #if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL) |
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67 | static ucs4_t |
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68 | ucs_4_internal_convert_to_ucs (void *data, |
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69 | const unsigned char **inbuf, |
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70 | size_t *inbytesleft) |
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71 | { |
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72 | register ucs4_t res; |
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73 | |
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74 | if (*inbytesleft < sizeof (ucs4_t)) |
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75 | return (ucs4_t)ICONV_CES_BAD_SEQUENCE; |
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76 | |
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77 | res = *((ucs4_t *)(*inbuf)); |
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78 | |
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79 | if (res > 0x7FFFFFFF) |
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80 | return (ucs4_t)ICONV_CES_INVALID_CHARACTER; |
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81 | |
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82 | *inbytesleft -= sizeof (ucs4_t); |
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83 | *inbuf += sizeof (ucs4_t); |
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84 | |
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85 | return res; |
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86 | } |
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87 | #endif /* ICONV_TO_UCS_CES_UCS_4_INTERNAL */ |
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88 | |
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89 | static int |
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90 | ucs_4_internal_get_mb_cur_max (void *data) |
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91 | { |
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92 | return 2; |
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93 | } |
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94 | |
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95 | #if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL) |
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96 | const iconv_to_ucs_ces_handlers_t |
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97 | _iconv_to_ucs_ces_handlers_ucs_4_internal = |
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98 | { |
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99 | NULL, |
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100 | NULL, |
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101 | ucs_4_internal_get_mb_cur_max, |
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102 | NULL, |
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103 | NULL, |
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104 | NULL, |
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105 | ucs_4_internal_convert_to_ucs |
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106 | }; |
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107 | #endif |
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108 | |
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109 | #if defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL) |
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110 | const iconv_from_ucs_ces_handlers_t |
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111 | _iconv_from_ucs_ces_handlers_ucs_4_internal = |
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112 | { |
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113 | NULL, |
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114 | NULL, |
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115 | ucs_4_internal_get_mb_cur_max, |
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116 | NULL, |
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117 | NULL, |
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118 | NULL, |
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119 | ucs_4_internal_convert_from_ucs |
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120 | }; |
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121 | #endif |
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122 | |
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123 | #endif /* ICONV_TO_UCS_CES_UCS_4_INTERNAL || ICONV_FROM_UCS_CES_UCS_4_INTERNAL */ |
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124 | |
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