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update(pcre2): Version 10.44 (#4478)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /************************************************* | ||
| * Perl-Compatible Regular Expressions * | ||
| *************************************************/ | ||
|
|
||
| /* PCRE is a library of functions to support regular expressions whose syntax | ||
| and semantics are as close as possible to those of the Perl 5 language. | ||
| Written by Philip Hazel | ||
| Copyright (c) 2023 University of Cambridge | ||
| ----------------------------------------------------------------------------- | ||
| Redistribution and use in source and binary forms, with or without | ||
| modification, are permitted provided that the following conditions are met: | ||
| * Redistributions of source code must retain the above copyright notice, | ||
| this list of conditions and the following disclaimer. | ||
| * Redistributions in binary form must reproduce the above copyright | ||
| notice, this list of conditions and the following disclaimer in the | ||
| documentation and/or other materials provided with the distribution. | ||
| * Neither the name of the University of Cambridge nor the names of its | ||
| contributors may be used to endorse or promote products derived from | ||
| this software without specific prior written permission. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | ||
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | ||
| LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
| CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||
| INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | ||
| CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| POSSIBILITY OF SUCH DAMAGE. | ||
| ----------------------------------------------------------------------------- | ||
| */ | ||
|
|
||
| /* This file contains functions to implement checked integer operation */ | ||
|
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||
| #ifndef PCRE2_PCRE2TEST | ||
| #ifdef HAVE_CONFIG_H | ||
| #include "pcre2_config.h" | ||
| #endif | ||
|
|
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| #include "pcre2_internal.h" | ||
| #endif | ||
|
|
||
| /************************************************* | ||
| * Checked Integer Multiplication * | ||
| *************************************************/ | ||
|
|
||
| /* | ||
| Arguments: | ||
| r A pointer to PCRE2_SIZE to store the answer | ||
| a, b Two integers | ||
| Returns: Bool indicating if the operation overflows | ||
| It is modeled after C23's <stdckdint.h> interface | ||
| The INT64_OR_DOUBLE type is a 64-bit integer type when available, | ||
| otherwise double. */ | ||
|
|
||
| BOOL | ||
| PRIV(ckd_smul)(PCRE2_SIZE *r, int a, int b) | ||
| { | ||
| #ifdef HAVE_BUILTIN_MUL_OVERFLOW | ||
| PCRE2_SIZE m; | ||
|
|
||
| if (__builtin_mul_overflow(a, b, &m)) return TRUE; | ||
|
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| *r = m; | ||
| #else | ||
| INT64_OR_DOUBLE m; | ||
|
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| #ifdef PCRE2_DEBUG | ||
| if (a < 0 || b < 0) abort(); | ||
| #endif | ||
|
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| m = (INT64_OR_DOUBLE)a * (INT64_OR_DOUBLE)b; | ||
|
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| #if defined INT64_MAX || defined int64_t | ||
| if (sizeof(m) > sizeof(*r) && m > (INT64_OR_DOUBLE)PCRE2_SIZE_MAX) return TRUE; | ||
| *r = (PCRE2_SIZE)m; | ||
| #else | ||
| if (m > PCRE2_SIZE_MAX) return TRUE; | ||
| *r = m; | ||
| #endif | ||
|
|
||
| #endif | ||
|
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| return FALSE; | ||
| } | ||
|
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| /* End of pcre_chkdint.c */ |
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