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29
30// macho_utilties.cc: Utilities for dealing with mach-o files
31//
32// Author: Dave Camp
33
34#include "common/mac/byteswap.h"
35#include "common/mac/macho_utilities.h"
36
37#include <mach-o/fat.h>
38#include <mach-o/loader.h>
39
40void breakpad_swap_uuid_command(struct breakpad_uuid_command *uc) {
41 uc->cmd = ByteSwap(uc->cmd);
42 uc->cmdsize = ByteSwap(uc->cmdsize);
43}
44
45void breakpad_swap_load_command(struct load_command *lc) {
46 lc->cmd = ByteSwap(lc->cmd);
47 lc->cmdsize = ByteSwap(lc->cmdsize);
48}
49
50void breakpad_swap_dylib_command(struct dylib_command *dc) {
51 dc->cmd = ByteSwap(dc->cmd);
52 dc->cmdsize = ByteSwap(dc->cmdsize);
53
54 dc->dylib.name.offset = ByteSwap(dc->dylib.name.offset);
55 dc->dylib.timestamp = ByteSwap(dc->dylib.timestamp);
56 dc->dylib.current_version = ByteSwap(dc->dylib.current_version);
57 dc->dylib.compatibility_version = ByteSwap(dc->dylib.compatibility_version);
58}
59
60void breakpad_swap_segment_command(struct segment_command *sc) {
61 sc->cmd = ByteSwap(sc->cmd);
62 sc->cmdsize = ByteSwap(sc->cmdsize);
63
64 sc->vmaddr = ByteSwap(sc->vmaddr);
65 sc->vmsize = ByteSwap(sc->vmsize);
66 sc->fileoff = ByteSwap(sc->fileoff);
67 sc->filesize = ByteSwap(sc->filesize);
68 sc->maxprot = ByteSwap(sc->maxprot);
69 sc->initprot = ByteSwap(sc->initprot);
70 sc->nsects = ByteSwap(sc->nsects);
71 sc->flags = ByteSwap(sc->flags);
72}
73
74void breakpad_swap_segment_command_64(struct segment_command_64 *sg) {
75 sg->cmd = ByteSwap(sg->cmd);
76 sg->cmdsize = ByteSwap(sg->cmdsize);
77
78 sg->vmaddr = ByteSwap(sg->vmaddr);
79 sg->vmsize = ByteSwap(sg->vmsize);
80 sg->fileoff = ByteSwap(sg->fileoff);
81 sg->filesize = ByteSwap(sg->filesize);
82
83 sg->maxprot = ByteSwap(sg->maxprot);
84 sg->initprot = ByteSwap(sg->initprot);
85 sg->nsects = ByteSwap(sg->nsects);
86 sg->flags = ByteSwap(sg->flags);
87}
88
89void breakpad_swap_fat_header(struct fat_header *fh) {
90 fh->magic = ByteSwap(fh->magic);
91 fh->nfat_arch = ByteSwap(fh->nfat_arch);
92}
93
94void breakpad_swap_fat_arch(struct fat_arch *fa, uint32_t narchs) {
95 for (uint32_t i = 0; i < narchs; ++i) {
96 fa[i].cputype = ByteSwap(fa[i].cputype);
97 fa[i].cpusubtype = ByteSwap(fa[i].cpusubtype);
98 fa[i].offset = ByteSwap(fa[i].offset);
99 fa[i].size = ByteSwap(fa[i].size);
100 fa[i].align = ByteSwap(fa[i].align);
101 }
102}
103
104void breakpad_swap_mach_header(struct mach_header *mh) {
105 mh->magic = ByteSwap(mh->magic);
106 mh->cputype = ByteSwap(mh->cputype);
107 mh->cpusubtype = ByteSwap(mh->cpusubtype);
108 mh->filetype = ByteSwap(mh->filetype);
109 mh->ncmds = ByteSwap(mh->ncmds);
110 mh->sizeofcmds = ByteSwap(mh->sizeofcmds);
111 mh->flags = ByteSwap(mh->flags);
112}
113
114void breakpad_swap_mach_header_64(struct mach_header_64 *mh) {
115 mh->magic = ByteSwap(mh->magic);
116 mh->cputype = ByteSwap(mh->cputype);
117 mh->cpusubtype = ByteSwap(mh->cpusubtype);
118 mh->filetype = ByteSwap(mh->filetype);
119 mh->ncmds = ByteSwap(mh->ncmds);
120 mh->sizeofcmds = ByteSwap(mh->sizeofcmds);
121 mh->flags = ByteSwap(mh->flags);
122 mh->reserved = ByteSwap(mh->reserved);
123}
124
125void breakpad_swap_section(struct section *s,
126 uint32_t nsects) {
127 for (uint32_t i = 0; i < nsects; i++) {
128 s[i].addr = ByteSwap(s[i].addr);
129 s[i].size = ByteSwap(s[i].size);
130
131 s[i].offset = ByteSwap(s[i].offset);
132 s[i].align = ByteSwap(s[i].align);
133 s[i].reloff = ByteSwap(s[i].reloff);
134 s[i].nreloc = ByteSwap(s[i].nreloc);
135 s[i].flags = ByteSwap(s[i].flags);
136 s[i].reserved1 = ByteSwap(s[i].reserved1);
137 s[i].reserved2 = ByteSwap(s[i].reserved2);
138 }
139}
140
141void breakpad_swap_section_64(struct section_64 *s,
142 uint32_t nsects) {
143 for (uint32_t i = 0; i < nsects; i++) {
144 s[i].addr = ByteSwap(s[i].addr);
145 s[i].size = ByteSwap(s[i].size);
146
147 s[i].offset = ByteSwap(s[i].offset);
148 s[i].align = ByteSwap(s[i].align);
149 s[i].reloff = ByteSwap(s[i].reloff);
150 s[i].nreloc = ByteSwap(s[i].nreloc);
151 s[i].flags = ByteSwap(s[i].flags);
152 s[i].reserved1 = ByteSwap(s[i].reserved1);
153 s[i].reserved2 = ByteSwap(s[i].reserved2);
154 }
155}
156