mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-19 20:24:49 +00:00
a745fc3757
added libraries: opus flac libsndfile updated: libvorbis libogg openal - Everything works as expected for now. Bare in mind libsndfile needed the check for whether or not it could find the xiph libraries removed in order for this to work.
319 lines
8.1 KiB
C
319 lines
8.1 KiB
C
/* alloc - Convenience routines for safely allocating memory
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* Copyright (C) 2007-2009 Josh Coalson
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* Copyright (C) 2011-2023 Xiph.Org Foundation
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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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*
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* - 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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*
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* - 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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* - Neither the name of the Xiph.org Foundation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef FLAC__SHARE__ALLOC_H
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#define FLAC__SHARE__ALLOC_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* WATCHOUT: for c++ you may have to #define __STDC_LIMIT_MACROS 1 real early
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* before #including this file, otherwise SIZE_MAX might not be defined
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*/
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#include <limits.h> /* for SIZE_MAX */
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#ifdef HAVE_STDINT_H
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#include <stdint.h> /* for SIZE_MAX in case limits.h didn't get it */
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#endif
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#include <stdlib.h> /* for size_t, malloc(), etc */
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#include "share/compat.h"
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#ifndef SIZE_MAX
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# ifndef SIZE_T_MAX
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# ifdef _MSC_VER
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# ifdef _WIN64
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# define SIZE_T_MAX FLAC__U64L(0xffffffffffffffff)
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# else
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# define SIZE_T_MAX 0xffffffff
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# endif
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# else
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# error
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# endif
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# endif
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# define SIZE_MAX SIZE_T_MAX
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#endif
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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extern int alloc_check_threshold, alloc_check_counter;
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static inline int alloc_check() {
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if(alloc_check_threshold == INT32_MAX)
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return 0;
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else if(alloc_check_counter++ == alloc_check_threshold)
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return 1;
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else
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return 0;
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}
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#endif
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/* avoid malloc()ing 0 bytes, see:
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* https://www.securecoding.cert.org/confluence/display/seccode/MEM04-A.+Do+not+make+assumptions+about+the+result+of+allocating+0+bytes?focusedCommentId=5407003
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*/
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static inline void *safe_malloc_(size_t size)
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{
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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/* Fail if requested */
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if(alloc_check())
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return NULL;
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#endif
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/* malloc(0) is undefined; FLAC src convention is to always allocate */
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if(!size)
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size++;
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return malloc(size);
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}
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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static inline void *malloc_(size_t size)
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{
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/* Fail if requested */
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if(alloc_check())
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return NULL;
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return malloc(size);
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}
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#else
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#define malloc_ malloc
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#endif
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static inline void *safe_calloc_(size_t nmemb, size_t size)
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{
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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/* Fail if requested */
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if(alloc_check())
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return NULL;
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#endif
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if(!nmemb || !size)
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return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
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return calloc(nmemb, size);
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}
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/*@@@@ there's probably a better way to prevent overflows when allocating untrusted sums but this works for now */
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static inline void *safe_malloc_add_2op_(size_t size1, size_t size2)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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return safe_malloc_(size2);
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}
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static inline void *safe_malloc_add_3op_(size_t size1, size_t size2, size_t size3)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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size3 += size2;
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if(size3 < size2)
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return 0;
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return safe_malloc_(size3);
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}
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static inline void *safe_malloc_add_4op_(size_t size1, size_t size2, size_t size3, size_t size4)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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size3 += size2;
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if(size3 < size2)
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return 0;
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size4 += size3;
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if(size4 < size3)
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return 0;
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return safe_malloc_(size4);
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}
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void *safe_malloc_mul_2op_(size_t size1, size_t size2) ;
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static inline void *safe_malloc_mul_3op_(size_t size1, size_t size2, size_t size3)
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{
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if(!size1 || !size2 || !size3)
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return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
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if(size1 > SIZE_MAX / size2)
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return 0;
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size1 *= size2;
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if(size1 > SIZE_MAX / size3)
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return 0;
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return malloc_(size1*size3);
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}
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/* size1*size2 + size3 */
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static inline void *safe_malloc_mul2add_(size_t size1, size_t size2, size_t size3)
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{
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if(!size1 || !size2)
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return safe_malloc_(size3);
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if(size1 > SIZE_MAX / size2)
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return 0;
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return safe_malloc_add_2op_(size1*size2, size3);
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}
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/* size1 * (size2 + size3) */
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static inline void *safe_malloc_muladd2_(size_t size1, size_t size2, size_t size3)
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{
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if(!size1 || (!size2 && !size3))
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return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
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size2 += size3;
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if(size2 < size3)
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return 0;
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if(size1 > SIZE_MAX / size2)
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return 0;
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return malloc_(size1*size2);
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}
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static inline void *safe_realloc_(void *ptr, size_t size)
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{
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void *oldptr;
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void *newptr;
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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/* Fail if requested */
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if(alloc_check() && size > 0) {
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free(ptr);
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return NULL;
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}
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#endif
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oldptr = ptr;
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newptr = realloc(ptr, size);
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if(size > 0 && newptr == 0)
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free(oldptr);
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return newptr;
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}
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#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
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static inline void *realloc_(void *ptr, size_t size)
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{
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/* Fail if requested */
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if(alloc_check())
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return NULL;
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return realloc(ptr, size);
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}
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#else
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#define realloc_ realloc
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#endif
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static inline void *safe_realloc_nofree_add_2op_(void *ptr, size_t size1, size_t size2)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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return realloc_(ptr, size2);
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}
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static inline void *safe_realloc_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
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{
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size2 += size1;
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if(size2 < size1) {
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free(ptr);
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return 0;
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}
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size3 += size2;
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if(size3 < size2) {
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free(ptr);
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return 0;
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}
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return safe_realloc_(ptr, size3);
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}
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static inline void *safe_realloc_nofree_add_3op_(void *ptr, size_t size1, size_t size2, size_t size3)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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size3 += size2;
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if(size3 < size2)
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return 0;
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return realloc_(ptr, size3);
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}
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static inline void *safe_realloc_nofree_add_4op_(void *ptr, size_t size1, size_t size2, size_t size3, size_t size4)
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{
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size2 += size1;
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if(size2 < size1)
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return 0;
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size3 += size2;
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if(size3 < size2)
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return 0;
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size4 += size3;
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if(size4 < size3)
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return 0;
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return realloc_(ptr, size4);
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}
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static inline void *safe_realloc_mul_2op_(void *ptr, size_t size1, size_t size2)
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{
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if(!size1 || !size2)
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return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
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if(size1 > SIZE_MAX / size2) {
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free(ptr);
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return 0;
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}
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return safe_realloc_(ptr, size1*size2);
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}
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static inline void *safe_realloc_nofree_mul_2op_(void *ptr, size_t size1, size_t size2)
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{
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if(!size1 || !size2)
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return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
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if(size1 > SIZE_MAX / size2)
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return 0;
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return realloc_(ptr, size1*size2);
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}
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/* size1 * (size2 + size3) */
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static inline void *safe_realloc_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
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{
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if(!size1 || (!size2 && !size3))
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return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
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size2 += size3;
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if(size2 < size3) {
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free(ptr);
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return 0;
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}
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return safe_realloc_mul_2op_(ptr, size1, size2);
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}
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/* size1 * (size2 + size3) */
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static inline void *safe_realloc_nofree_muladd2_(void *ptr, size_t size1, size_t size2, size_t size3)
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{
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if(!size1 || (!size2 && !size3))
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return realloc(ptr, 0); /* preserve POSIX realloc(ptr, 0) semantics */
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size2 += size3;
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if(size2 < size3)
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return 0;
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return safe_realloc_nofree_mul_2op_(ptr, size1, size2);
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}
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#endif
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