author | William Roberts <williamr@symbian.org> |
Fri, 23 Jul 2010 16:09:54 +0100 | |
branch | GCC_SURGE |
changeset 47 | d7383dba13ba |
parent 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
18
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/* |
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* LIBOIL - Library of Optimized Inner Loops |
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* Copyright (c) 2004 David A. Schleef <ds@schleef.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include <liboil/liboil.h> |
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#include <liboil/liboiltest.h> |
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#include <liboil/liboilrandom.h> |
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#include "liboil/utf8/utf8.h" |
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|
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|
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/* |
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* Little explanation: |
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* 0x00-0x7f ASCII, one byte character |
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* 0x80-0xbf continuation byte, not a valid start byte |
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* 0xc0-0xdf 2-byte character |
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* 0xe0-0xef 3-byte character |
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* 0xf0-0xf7 4-byte character |
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* 0xf8-0xff reserved (illegal at the present time) |
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*/ |
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static void |
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utf8_validate_test (OilTest *test) |
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{ |
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int i; |
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int n = test->n; |
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uint8_t *ptr = oil_test_get_source_data (test, OIL_ARG_SRC1); |
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int x; |
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int extra_chars = 0; |
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|
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for (i=0;i<n;i++){ |
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if (i >= n-16) { |
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/* if it's close to the end, we'll randomly drop in a bad |
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* byte from either the 0x80-0xbf or 0xf8-0xff segments */ |
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x = oil_rand_u8(); |
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if (x < 16) { |
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x = oil_rand_u8(); |
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if (extra_chars>0) { |
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/* this might not actually be a bad char */ |
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ptr[i] = x; |
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extra_chars--; |
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} else { |
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if (x & 0x80) { |
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ptr[i] = 0x80 | (x&0x3f); |
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} else { |
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ptr[i] = 0xf8 | (x&0x07); |
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} |
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} |
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continue; |
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} |
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} |
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if (extra_chars > 0) { |
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ptr[i] = 0x80 | (oil_rand_u8() & 0x3f); |
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extra_chars--; |
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} else { |
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/* otherwise, we'll do a low probability of a multibyte char */ |
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x = oil_rand_u8() & 0xf; |
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if (x == 0) { |
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ptr[i] = 0xc0 | (oil_rand_u8() & 0x1f); |
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extra_chars = 1; |
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} else if (x == 1) { |
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ptr[i] = 0xe0 | (oil_rand_u8() & 0x0f); |
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extra_chars = 2; |
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} else if (x == 2) { |
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ptr[i] = 0xf0 | (oil_rand_u8() & 0x07); |
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extra_chars = 3; |
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} else { |
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ptr[i] = oil_rand_u8() & 0x7f; |
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} |
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} |
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} |
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|
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} |
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|
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/** |
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* oil_utf8_validate: |
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102 |
* @d_1: |
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Revision: 201011
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103 |
* @s: |
47c74d1534e1
Revision: 201011
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104 |
* @n: |
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Revision: 201011
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105 |
* |
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Revision: 201011
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106 |
* Checks @s for valid UTF-8 characters. If the entire @s array |
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Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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107 |
* represents valid UTF-8 characters, @n is written to @d_1. |
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Revision: 201011
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108 |
* Otherwise, the index in the array of the beginning of the first |
47c74d1534e1
Revision: 201011
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109 |
* invalid UTF-8 character is written to @d_1. |
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Revision: 201011
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110 |
*/ |
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Revision: 201011
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111 |
OIL_DEFINE_CLASS_FULL (utf8_validate, "int32_t *d_1, uint8_t *s, int n", |
47c74d1534e1
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112 |
utf8_validate_test); |
47c74d1534e1
Revision: 201011
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113 |
|
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114 |
|
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115 |
static void |
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utf8_validate_ref (int32_t *d_1, uint8_t *s, int n) |
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117 |
{ |
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118 |
int i; |
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119 |
int extra_bytes; |
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int mask; |
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121 |
|
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for(i=0;i<n;i++){ |
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extra_bytes = 0; |
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if (s[i] < 128) continue; |
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if ((s[i] & 0xe0) == 0xc0) { |
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126 |
extra_bytes = 1; |
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127 |
mask = 0x7f; |
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} else if ((s[i] & 0xf0) == 0xe0) { |
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129 |
extra_bytes = 2; |
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130 |
mask = 0x1f; |
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131 |
} else if ((s[i] & 0xf8) == 0xf0) { |
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Revision: 201011
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132 |
extra_bytes = 3; |
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Revision: 201011
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133 |
mask = 0x0f; |
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134 |
} else { |
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135 |
goto error; |
47c74d1534e1
Revision: 201011
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136 |
} |
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Revision: 201011
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137 |
if (i + extra_bytes >= n) goto error; |
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Revision: 201011
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138 |
while(extra_bytes--) { |
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Revision: 201011
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139 |
i++; |
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Revision: 201011
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140 |
if ((s[i] & 0xc0) != 0x80) goto error; |
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Revision: 201011
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141 |
} |
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Revision: 201011
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142 |
} |
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Revision: 201011
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143 |
|
47c74d1534e1
Revision: 201011
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144 |
error: |
47c74d1534e1
Revision: 201011
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145 |
d_1[0] = i; |
47c74d1534e1
Revision: 201011
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146 |
} |
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Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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147 |
|
47c74d1534e1
Revision: 201011
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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148 |
OIL_DEFINE_IMPL_REF (utf8_validate_ref, utf8_validate); |
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Revision: 201011
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149 |
|
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150 |
|
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Revision: 201011
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151 |