/usr/include/android/androidfw/ObbFile.h is in android-libandroidfw-dev 1:6.0.1+r16-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 | /*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OBBFILE_H_
#define OBBFILE_H_
#include <stdint.h>
#include <strings.h>
#include <utils/RefBase.h>
#include <utils/String8.h>
namespace android {
// OBB flags (bit 0)
#define OBB_OVERLAY (1 << 0)
#define OBB_SALTED (1 << 1)
class ObbFile : public RefBase {
protected:
virtual ~ObbFile();
public:
ObbFile();
bool readFrom(const char* filename);
bool readFrom(int fd);
bool writeTo(const char* filename);
bool writeTo(int fd);
bool removeFrom(const char* filename);
bool removeFrom(int fd);
const char* getFileName() const {
return mFileName;
}
const String8 getPackageName() const {
return mPackageName;
}
void setPackageName(String8 packageName) {
mPackageName = packageName;
}
int32_t getVersion() const {
return mVersion;
}
void setVersion(int32_t version) {
mVersion = version;
}
int32_t getFlags() const {
return mFlags;
}
void setFlags(int32_t flags) {
mFlags = flags;
}
const unsigned char* getSalt(size_t* length) const {
if ((mFlags & OBB_SALTED) == 0) {
*length = 0;
return NULL;
}
*length = sizeof(mSalt);
return mSalt;
}
bool setSalt(const unsigned char* salt, size_t length) {
if (length != sizeof(mSalt)) {
return false;
}
memcpy(mSalt, salt, sizeof(mSalt));
mFlags |= OBB_SALTED;
return true;
}
bool isOverlay() {
return (mFlags & OBB_OVERLAY) == OBB_OVERLAY;
}
void setOverlay(bool overlay) {
if (overlay) {
mFlags |= OBB_OVERLAY;
} else {
mFlags &= ~OBB_OVERLAY;
}
}
static inline uint32_t get4LE(const unsigned char* buf) {
return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
}
static inline void put4LE(unsigned char* buf, uint32_t val) {
buf[0] = val & 0xFF;
buf[1] = (val >> 8) & 0xFF;
buf[2] = (val >> 16) & 0xFF;
buf[3] = (val >> 24) & 0xFF;
}
private:
/* Package name this ObbFile is associated with */
String8 mPackageName;
/* Package version this ObbFile is associated with */
int32_t mVersion;
/* Flags for this OBB type. */
int32_t mFlags;
/* Whether the file is salted. */
bool mSalted;
/* The encryption salt. */
unsigned char mSalt[8];
const char* mFileName;
size_t mFileSize;
size_t mFooterStart;
unsigned char* mReadBuf;
bool parseObbFile(int fd);
};
}
#endif /* OBBFILE_H_ */
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