Root/
| Source at commit 1302 created 12 years 8 months ago. By meklort, Clean up libsaio | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * The contents of this file constitute Original Code as defined in and␊ |
| 7 | * are subject to the Apple Public Source License Version 2.0 (the␊ |
| 8 | * "License"). You may not use this file except in compliance with the␊ |
| 9 | * License. Please obtain a copy of the License at␊ |
| 10 | * http://www.apple.com/publicsource and read it before using this file.␊ |
| 11 | * ␊ |
| 12 | * This Original Code and all software distributed under the License are␊ |
| 13 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 14 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 15 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the␊ |
| 17 | * License for the specific language governing rights and limitations␊ |
| 18 | * under the License.␊ |
| 19 | * ␊ |
| 20 | * @APPLE_LICENSE_HEADER_END@␊ |
| 21 | */␊ |
| 22 | /*␊ |
| 23 | * load.c - Functions for decoding a Mach-o Kernel.␊ |
| 24 | *␊ |
| 25 | * Copyright (c) 1998-2003 Apple Computer, Inc.␊ |
| 26 | *␊ |
| 27 | */␊ |
| 28 | ␊ |
| 29 | #include <mach-o/fat.h>␊ |
| 30 | #include <mach-o/loader.h>␊ |
| 31 | #include <mach/machine/thread_status.h>␊ |
| 32 | ␊ |
| 33 | ␊ |
| 34 | cpu_type_t archCpuType=CPU_TYPE_I386;␊ |
| 35 | ␊ |
| 36 | // Public Functions␊ |
| 37 | ␊ |
| 38 | long ThinFatFile(void **binary, unsigned long *length)␊ |
| 39 | {␊ |
| 40 | unsigned long nfat, swapped, size = 0;␊ |
| 41 | struct fat_header *fhp = (struct fat_header *)*binary;␊ |
| 42 | struct fat_arch *fap =␊ |
| 43 | (struct fat_arch *)((unsigned long)*binary + sizeof(struct fat_header));␊ |
| 44 | cpu_type_t fapcputype;␊ |
| 45 | uint32_t fapoffset;␊ |
| 46 | uint32_t fapsize;␉␊ |
| 47 | ␊ |
| 48 | if (fhp->magic == FAT_MAGIC) {␊ |
| 49 | nfat = fhp->nfat_arch;␊ |
| 50 | swapped = 0;␊ |
| 51 | } else if (fhp->magic == FAT_CIGAM) {␊ |
| 52 | nfat = OSSwapInt32(fhp->nfat_arch);␊ |
| 53 | swapped = 1;␊ |
| 54 | } else {␊ |
| 55 | return -1;␊ |
| 56 | }␊ |
| 57 | ␊ |
| 58 | for (; nfat > 0; nfat--, fap++) {␊ |
| 59 | if (swapped) {␊ |
| 60 | fapcputype = OSSwapInt32(fap->cputype);␊ |
| 61 | fapoffset = OSSwapInt32(fap->offset);␊ |
| 62 | fapsize = OSSwapInt32(fap->size);␊ |
| 63 | }␊ |
| 64 | ␉else␊ |
| 65 | ␉{␊ |
| 66 | ␉␉fapcputype = fap->cputype;␊ |
| 67 | ␉␉fapoffset = fap->offset;␊ |
| 68 | ␉␉fapsize = fap->size;␊ |
| 69 | ␉}␊ |
| 70 | ␊ |
| 71 | if (fapcputype == archCpuType) {␊ |
| 72 | *binary = (void *) ((unsigned long)*binary + fapoffset);␊ |
| 73 | ␉ size = fapsize;␊ |
| 74 | ␉ break;␊ |
| 75 | }␊ |
| 76 | }␊ |
| 77 | ␊ |
| 78 | if (length != 0) *length = size;␊ |
| 79 | ␊ |
| 80 | return 0;␊ |
| 81 | } |
