| /* | |
| +----------------------------------------------------------------------+ | |
| | Copyright (c) The PHP Group | | |
| +----------------------------------------------------------------------+ | |
| | This source file is subject to version 3.01 of the PHP license, | | |
| | that is bundled with this package in the file LICENSE, and is | | |
| | available through the world-wide-web at the following url: | | |
| | https://www.php.net/license/3_01.txt | | |
| | If you did not receive a copy of the PHP license and are unable to | | |
| | obtain it through the world-wide-web, please send a note to | | |
| | license@php.net so we can mail you a copy immediately. | | |
| +----------------------------------------------------------------------+ | |
| | Author: Anatol Belski <ab@php.net> | | |
| +----------------------------------------------------------------------+ | |
| */ | |
| zend_string* convert_libmagic_pattern(const char *val, size_t len, uint32_t options) | |
| { | |
| size_t i, j; | |
| zend_string *t; | |
| for (i = j = 0; i < len; i++) { | |
| switch (val[i]) { | |
| case '~': | |
| j += 2; | |
| break; | |
| case '\0': | |
| j += 4; | |
| break; | |
| default: | |
| j++; | |
| break; | |
| } | |
| } | |
| t = zend_string_alloc(j + 4, 0); | |
| j = 0; | |
| ZSTR_VAL(t)[j++] = '~'; | |
| for (i = 0; i < len; i++, j++) { | |
| switch (val[i]) { | |
| case '~': | |
| ZSTR_VAL(t)[j++] = '\\'; | |
| ZSTR_VAL(t)[j] = '~'; | |
| break; | |
| case '\0': | |
| ZSTR_VAL(t)[j++] = '\\'; | |
| ZSTR_VAL(t)[j++] = 'x'; | |
| ZSTR_VAL(t)[j++] = '0'; | |
| ZSTR_VAL(t)[j] = '0'; | |
| break; | |
| default: | |
| ZSTR_VAL(t)[j] = val[i]; | |
| break; | |
| } | |
| } | |
| ZSTR_VAL(t)[j++] = '~'; | |
| if (options & PCRE2_CASELESS) | |
| ZSTR_VAL(t)[j++] = 'i'; | |
| if (options & PCRE2_MULTILINE) | |
| ZSTR_VAL(t)[j++] = 'm'; | |
| ZSTR_VAL(t)[j]='\0'; | |
| ZSTR_LEN(t) = j; | |
| return t; | |
| } | |