1 /*
2 +----------------------------------------------------------------------+
3 | Zend Engine |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 2.00 of the Zend license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at |
10 | http://www.zend.com/license/2_00.txt. |
11 | If you did not receive a copy of the Zend license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@zend.com so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Authors: Masaki Fujimoto <fujimoto@php.net> |
16 | Rui Hirokawa <hirokawa@php.net> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #include "zend.h"
23 #include "zend_compile.h"
24 #include "zend_operators.h"
25 #include "zend_multibyte.h"
26 #include "zend_ini.h"
27
dummy_encoding_fetcher(const char * encoding_name TSRMLS_DC)28 static const zend_encoding *dummy_encoding_fetcher(const char *encoding_name TSRMLS_DC)
29 {
30 return NULL;
31 }
32
dummy_encoding_name_getter(const zend_encoding * encoding)33 static const char *dummy_encoding_name_getter(const zend_encoding *encoding)
34 {
35 return (const char*)encoding;
36 }
37
dummy_encoding_lexer_compatibility_checker(const zend_encoding * encoding)38 static int dummy_encoding_lexer_compatibility_checker(const zend_encoding *encoding)
39 {
40 return 0;
41 }
42
dummy_encoding_detector(const unsigned char * string,size_t length,const zend_encoding ** list,size_t list_size TSRMLS_DC)43 static const zend_encoding *dummy_encoding_detector(const unsigned char *string, size_t length, const zend_encoding **list, size_t list_size TSRMLS_DC)
44 {
45 return NULL;
46 }
47
dummy_encoding_converter(unsigned char ** to,size_t * to_length,const unsigned char * from,size_t from_length,const zend_encoding * encoding_to,const zend_encoding * encoding_from TSRMLS_DC)48 static size_t dummy_encoding_converter(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length, const zend_encoding *encoding_to, const zend_encoding *encoding_from TSRMLS_DC)
49 {
50 return (size_t)-1;
51 }
52
dummy_encoding_list_parser(const char * encoding_list,size_t encoding_list_len,const zend_encoding *** return_list,size_t * return_size,int persistent TSRMLS_DC)53 static int dummy_encoding_list_parser(const char *encoding_list, size_t encoding_list_len, const zend_encoding ***return_list, size_t *return_size, int persistent TSRMLS_DC)
54 {
55 *return_list = pemalloc(0, persistent);
56 *return_size = 0;
57 return SUCCESS;
58 }
59
dummy_internal_encoding_getter(TSRMLS_D)60 static const zend_encoding *dummy_internal_encoding_getter(TSRMLS_D)
61 {
62 return NULL;
63 }
64
dummy_internal_encoding_setter(const zend_encoding * encoding TSRMLS_DC)65 static int dummy_internal_encoding_setter(const zend_encoding *encoding TSRMLS_DC)
66 {
67 return FAILURE;
68 }
69
70 static zend_multibyte_functions multibyte_functions = {
71 NULL,
72 dummy_encoding_fetcher,
73 dummy_encoding_name_getter,
74 dummy_encoding_lexer_compatibility_checker,
75 dummy_encoding_detector,
76 dummy_encoding_converter,
77 dummy_encoding_list_parser,
78 dummy_internal_encoding_getter,
79 dummy_internal_encoding_setter
80 };
81
82 ZEND_API const zend_encoding *zend_multibyte_encoding_utf32be = (const zend_encoding*)"UTF-32BE";
83 ZEND_API const zend_encoding *zend_multibyte_encoding_utf32le = (const zend_encoding*)"UTF-32LE";
84 ZEND_API const zend_encoding *zend_multibyte_encoding_utf16be = (const zend_encoding*)"UTF-16BE";
85 ZEND_API const zend_encoding *zend_multibyte_encoding_utf16le = (const zend_encoding*)"UTF-32LE";
86 ZEND_API const zend_encoding *zend_multibyte_encoding_utf8 = (const zend_encoding*)"UTF-8";
87
zend_multibyte_set_functions(const zend_multibyte_functions * functions TSRMLS_DC)88 ZEND_API int zend_multibyte_set_functions(const zend_multibyte_functions *functions TSRMLS_DC)
89 {
90 zend_multibyte_encoding_utf32be = functions->encoding_fetcher("UTF-32BE" TSRMLS_CC);
91 if (!zend_multibyte_encoding_utf32be) {
92 return FAILURE;
93 }
94 zend_multibyte_encoding_utf32le = functions->encoding_fetcher("UTF-32LE" TSRMLS_CC);
95 if (!zend_multibyte_encoding_utf32le) {
96 return FAILURE;
97 }
98 zend_multibyte_encoding_utf16be = functions->encoding_fetcher("UTF-16BE" TSRMLS_CC);
99 if (!zend_multibyte_encoding_utf16be) {
100 return FAILURE;
101 }
102 zend_multibyte_encoding_utf16le = functions->encoding_fetcher("UTF-16LE" TSRMLS_CC);
103 if (!zend_multibyte_encoding_utf16le) {
104 return FAILURE;
105 }
106 zend_multibyte_encoding_utf8 = functions->encoding_fetcher("UTF-8" TSRMLS_CC);
107 if (!zend_multibyte_encoding_utf8) {
108 return FAILURE;
109 }
110
111 multibyte_functions = *functions;
112
113 /* As zend_multibyte_set_functions() gets called after ini settings were
114 * populated, we need to reinitialize script_encoding here.
115 */
116 {
117 const char *value = zend_ini_string("zend.script_encoding", sizeof("zend.script_encoding"), 0);
118 zend_multibyte_set_script_encoding_by_string(value, strlen(value) TSRMLS_CC);
119 }
120 return SUCCESS;
121 }
122
zend_multibyte_get_functions(TSRMLS_D)123 ZEND_API const zend_multibyte_functions *zend_multibyte_get_functions(TSRMLS_D)
124 {
125 return multibyte_functions.provider_name ? &multibyte_functions: NULL;
126 }
127
zend_multibyte_fetch_encoding(const char * name TSRMLS_DC)128 ZEND_API const zend_encoding *zend_multibyte_fetch_encoding(const char *name TSRMLS_DC)
129 {
130 return multibyte_functions.encoding_fetcher(name TSRMLS_CC);
131 }
132
zend_multibyte_get_encoding_name(const zend_encoding * encoding)133 ZEND_API const char *zend_multibyte_get_encoding_name(const zend_encoding *encoding)
134 {
135 return multibyte_functions.encoding_name_getter(encoding);
136 }
137
zend_multibyte_check_lexer_compatibility(const zend_encoding * encoding)138 ZEND_API int zend_multibyte_check_lexer_compatibility(const zend_encoding *encoding)
139 {
140 return multibyte_functions.lexer_compatibility_checker(encoding);
141 }
142
zend_multibyte_encoding_detector(const unsigned char * string,size_t length,const zend_encoding ** list,size_t list_size TSRMLS_DC)143 ZEND_API const zend_encoding *zend_multibyte_encoding_detector(const unsigned char *string, size_t length, const zend_encoding **list, size_t list_size TSRMLS_DC)
144 {
145 return multibyte_functions.encoding_detector(string, length, list, list_size TSRMLS_CC);
146 }
147
zend_multibyte_encoding_converter(unsigned char ** to,size_t * to_length,const unsigned char * from,size_t from_length,const zend_encoding * encoding_to,const zend_encoding * encoding_from TSRMLS_DC)148 ZEND_API size_t zend_multibyte_encoding_converter(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length, const zend_encoding *encoding_to, const zend_encoding *encoding_from TSRMLS_DC)
149 {
150 return multibyte_functions.encoding_converter(to, to_length, from, from_length, encoding_to, encoding_from TSRMLS_CC);
151 }
152
zend_multibyte_parse_encoding_list(const char * encoding_list,size_t encoding_list_len,const zend_encoding *** return_list,size_t * return_size,int persistent TSRMLS_DC)153 ZEND_API int zend_multibyte_parse_encoding_list(const char *encoding_list, size_t encoding_list_len, const zend_encoding ***return_list, size_t *return_size, int persistent TSRMLS_DC)
154 {
155 return multibyte_functions.encoding_list_parser(encoding_list, encoding_list_len, return_list, return_size, persistent TSRMLS_CC);
156 }
157
zend_multibyte_get_internal_encoding(TSRMLS_D)158 ZEND_API const zend_encoding *zend_multibyte_get_internal_encoding(TSRMLS_D)
159 {
160 return multibyte_functions.internal_encoding_getter(TSRMLS_C);
161 }
162
zend_multibyte_get_script_encoding(TSRMLS_D)163 ZEND_API const zend_encoding *zend_multibyte_get_script_encoding(TSRMLS_D)
164 {
165 return LANG_SCNG(script_encoding);
166 }
167
zend_multibyte_set_script_encoding(const zend_encoding ** encoding_list,size_t encoding_list_size TSRMLS_DC)168 ZEND_API int zend_multibyte_set_script_encoding(const zend_encoding **encoding_list, size_t encoding_list_size TSRMLS_DC)
169 {
170 if (CG(script_encoding_list)) {
171 free(CG(script_encoding_list));
172 }
173 CG(script_encoding_list) = encoding_list;
174 CG(script_encoding_list_size) = encoding_list_size;
175 return SUCCESS;
176 }
177
zend_multibyte_set_internal_encoding(const zend_encoding * encoding TSRMLS_DC)178 ZEND_API int zend_multibyte_set_internal_encoding(const zend_encoding *encoding TSRMLS_DC)
179 {
180 return multibyte_functions.internal_encoding_setter(encoding TSRMLS_CC);
181 }
182
zend_multibyte_set_script_encoding_by_string(const char * new_value,size_t new_value_length TSRMLS_DC)183 ZEND_API int zend_multibyte_set_script_encoding_by_string(const char *new_value, size_t new_value_length TSRMLS_DC)
184 {
185 const zend_encoding **list = 0;
186 size_t size = 0;
187
188 if (!new_value) {
189 zend_multibyte_set_script_encoding(NULL, 0 TSRMLS_CC);
190 return SUCCESS;
191 }
192
193 if (FAILURE == zend_multibyte_parse_encoding_list(new_value, new_value_length, &list, &size, 1 TSRMLS_CC)) {
194 return FAILURE;
195 }
196
197 if (size == 0) {
198 pefree(list, 1);
199 return FAILURE;
200 }
201
202 if (FAILURE == zend_multibyte_set_script_encoding(list, size TSRMLS_CC)) {
203 return FAILURE;
204 }
205
206 return SUCCESS;
207 }
208
209 /*
210 * Local variables:
211 * tab-width: 4
212 * c-basic-offset: 4
213 * End:
214 * vim600: sw=4 ts=4 tw=78
215 * vim<600: sw=4 ts=4 tw=78
216 */
217
