projects / apple / security.git / blame
| Commit | Line | Data |
|---|---|---|
| b1ab9ed8 A |
1 | /* Copyright (c) 1998 Apple Computer, Inc. All rights reserved. |
| 2 | * | |
| 3 | * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT | |
| 4 | * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE | |
| 5 | * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE COMPUTER, INC. AND THE | |
| 6 | * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE COMPUTER, | |
| 7 | * INC. ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL | |
| 8 | * EXPOSE YOU TO LIABILITY. | |
| 9 | *************************************************************************** | |
| 10 | * | |
| 11 | * falloc.c - FEE malloc routines | |
| 12 | * | |
| 13 | * Revision History | |
| 14 | * ---------------- | |
| 15 | * 28 May 98 Doug Mitchell at Apple | |
| 16 | * Added Mac-specific allocators from temp memory | |
| 17 | * 20 Aug 96 Doug Mitchell at NeXT | |
| 18 | * Created. | |
| 19 | */ | |
| 20 | ||
| 21 | #include "platform.h" | |
| 22 | #include "falloc.h" | |
| 23 | #include <stdlib.h> | |
| 24 | ||
| 25 | /* watchpoint emulator */ | |
| 26 | #define FALLOC_WATCH 0 | |
| 27 | #if FALLOC_WATCH | |
| 28 | #include <stdio.h> | |
| 29 | /* set these with debugger */ | |
| 30 | void *mallocWatchAddrs; | |
| 31 | void *freeWatchAddrs; | |
| 32 | #endif | |
| 33 | ||
| 34 | /* if NULL, use our own */ | |
| 35 | static mallocExternFcn *mallocExt = NULL; | |
| 36 | static freeExternFcn *freeExt = NULL; | |
| 37 | static reallocExternFcn *reallocExt = NULL; | |
| 38 | ||
| 39 | void fallocRegister(mallocExternFcn *mallocExtern, | |
| 40 | freeExternFcn *freeExtern, | |
| 41 | reallocExternFcn *reallocExtern) | |
| 42 | { | |
| 43 | mallocExt = mallocExtern; | |
| 44 | freeExt = freeExtern; | |
| 45 | reallocExt = reallocExtern; | |
| 46 | } | |
| 47 | ||
| 48 | /* | |
| 49 | * All this can be optimized and tailored to specific platforms, of course... | |
| 50 | */ | |
| 51 | ||
| 52 | void *fmalloc(unsigned size) | |
| 53 | { | |
| 54 | void *rtn; | |
| 55 | if(mallocExt != NULL) { | |
| 56 | rtn = (mallocExt)(size); | |
| 57 | } | |
| 58 | else { | |
| 59 | rtn = malloc(size); | |
| 60 | } | |
| 61 | #if FALLOC_WATCH | |
| 62 | if(rtn == mallocWatchAddrs) { | |
| 63 | printf("====fmalloc watchpoint (0x%x) hit\n", | |
| 64 | (unsigned)mallocWatchAddrs); | |
| 65 | } | |
| 66 | #endif | |
| 67 | return rtn; | |
| 68 | } | |
| 69 | ||
| 70 | void *fmallocWithData(const void *origData, | |
| 71 | unsigned origDataLen) | |
| 72 | { | |
| 73 | void *rtn = fmalloc(origDataLen); | |
| 74 | ||
| 75 | bcopy(origData, rtn, origDataLen); | |
| 76 | return rtn; | |
| 77 | } | |
| 78 | ||
| 79 | void ffree(void *data) | |
| 80 | { | |
| 81 | #if FALLOC_WATCH | |
| 82 | if(data == freeWatchAddrs) { | |
| 83 | printf("====ffree watchpoint (0x%x) hit\n", | |
| 84 | (unsigned)freeWatchAddrs); | |
| 85 | } | |
| 86 | #endif | |
| 87 | if(freeExt != NULL) { | |
| 88 | (freeExt)(data); | |
| 89 | } | |
| 90 | else { | |
| 91 | free(data); | |
| 92 | } | |
| 93 | } | |
| 94 | ||
| 95 | void *frealloc(void *oldPtr, unsigned newSize) | |
| 96 | { | |
| 97 | #if FALLOC_WATCH | |
| 98 | if(oldPtr == freeWatchAddrs) { | |
| 99 | printf("====frealloc watchpoint (0x%x) hit\n", | |
| 100 | (unsigned)freeWatchAddrs); | |
| 101 | } | |
| 102 | #endif | |
| 103 | if(reallocExt != NULL) { | |
| 104 | return (reallocExt)(oldPtr, newSize); | |
| 105 | } | |
| 106 | else { | |
| 107 | return realloc(oldPtr, newSize); | |
| 108 | } | |
| 109 | } |