74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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+----------------------------------------------------------------------+
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| Copyright © The PHP Group and Contributors. |
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+----------------------------------------------------------------------+
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| This source file is subject to the Modified BSD License that is |
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| bundled with this package in the file LICENSE, and is available |
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| through the World Wide Web at <https://www.php.net/license/>. |
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| |
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| SPDX-License-Identifier: BSD-3-Clause |
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+----------------------------------------------------------------------+
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| Author: Anatol Belski <ab@php.net> |
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+----------------------------------------------------------------------+
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*/
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#include "php.h"
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#include "php_libmagic.h"
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zend_string* convert_libmagic_pattern(const char *val, size_t len, uint32_t options)
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{
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size_t i, j;
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zend_string *t;
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for (i = j = 0; i < len; i++) {
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switch (val[i]) {
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case '~':
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j += 2;
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break;
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case '\0':
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j += 4;
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break;
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default:
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j++;
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break;
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}
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}
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t = zend_string_alloc(j + 4, 0);
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j = 0;
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ZSTR_VAL(t)[j++] = '~';
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for (i = 0; i < len; i++, j++) {
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switch (val[i]) {
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case '~':
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ZSTR_VAL(t)[j++] = '\\';
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ZSTR_VAL(t)[j] = '~';
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break;
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case '\0':
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ZSTR_VAL(t)[j++] = '\\';
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ZSTR_VAL(t)[j++] = 'x';
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ZSTR_VAL(t)[j++] = '0';
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ZSTR_VAL(t)[j] = '0';
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break;
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default:
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ZSTR_VAL(t)[j] = val[i];
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break;
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}
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}
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ZSTR_VAL(t)[j++] = '~';
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if (options & PCRE2_CASELESS)
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ZSTR_VAL(t)[j++] = 'i';
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if (options & PCRE2_MULTILINE)
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ZSTR_VAL(t)[j++] = 'm';
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ZSTR_VAL(t)[j]='\0';
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ZSTR_LEN(t) = j;
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return t;
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}
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