1 files changed, 0 insertions, 381 deletions
diff --git a/libs/utils/BackupData.cpp b/libs/utils/BackupData.cpp
deleted file mode 100644
index 7b1bcba..0000000
--- a/libs/utils/BackupData.cpp
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * Copyright (C) 2009 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.
- */
-
-#define LOG_TAG "backup_data"
-
-#include <androidfw/BackupHelpers.h>
-#include <utils/ByteOrder.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <cutils/log.h>
-
-namespace android {
-
-static const bool DEBUG = false;
-
-/*
- * File Format (v1):
- *
- * All ints are stored little-endian.
- *
- *  - An app_header_v1 struct.
- *  - The name of the package, utf-8, null terminated, padded to 4-byte boundary.
- *  - A sequence of zero or more key/value paires (entities), each with
- *      - A entity_header_v1 struct
- *      - The key, utf-8, null terminated, padded to 4-byte boundary.
- *      - The value, padded to 4 byte boundary
- */
-
-const static int ROUND_UP[4] = { 0, 3, 2, 1 };
-
-static inline size_t
-round_up(size_t n)
-{
-    return n + ROUND_UP[n % 4];
-}
-
-static inline size_t
-padding_extra(size_t n)
-{
-    return ROUND_UP[n % 4];
-}
-
-BackupDataWriter::BackupDataWriter(int fd)
-    :m_fd(fd),
-     m_status(NO_ERROR),
-     m_pos(0),
-     m_entityCount(0)
-{
-}
-
-BackupDataWriter::~BackupDataWriter()
-{
-}
-
-// Pad out anything they've previously written to the next 4 byte boundary.
-status_t
-BackupDataWriter::write_padding_for(int n)
-{
-    ssize_t amt;
-    ssize_t paddingSize;
-
-    paddingSize = padding_extra(n);
-    if (paddingSize > 0) {
-        uint32_t padding = 0xbcbcbcbc;
-        if (DEBUG) ALOGI("writing %d padding bytes for %d", paddingSize, n);
-        amt = write(m_fd, &padding, paddingSize);
-        if (amt != paddingSize) {
-            m_status = errno;
-            return m_status;
-        }
-        m_pos += amt;
-    }
-    return NO_ERROR;
-}
-
-status_t
-BackupDataWriter::WriteEntityHeader(const String8& key, size_t dataSize)
-{
-    if (m_status != NO_ERROR) {
-        return m_status;
-    }
-
-    ssize_t amt;
-
-    amt = write_padding_for(m_pos);
-    if (amt != 0) {
-        return amt;
-    }
-
-    String8 k;
-    if (m_keyPrefix.length() > 0) {
-        k = m_keyPrefix;
-        k += ":";
-        k += key;
-    } else {
-        k = key;
-    }
-    if (DEBUG) {
-        ALOGD("Writing header: prefix='%s' key='%s' dataSize=%d", m_keyPrefix.string(),
-                key.string(), dataSize);
-    }
-
-    entity_header_v1 header;
-    ssize_t keyLen;
-
-    keyLen = k.length();
-
-    header.type = tolel(BACKUP_HEADER_ENTITY_V1);
-    header.keyLen = tolel(keyLen);
-    header.dataSize = tolel(dataSize);
-
-    if (DEBUG) ALOGI("writing entity header, %d bytes", sizeof(entity_header_v1));
-    amt = write(m_fd, &header, sizeof(entity_header_v1));
-    if (amt != sizeof(entity_header_v1)) {
-        m_status = errno;
-        return m_status;
-    }
-    m_pos += amt;
-
-    if (DEBUG) ALOGI("writing entity header key, %d bytes", keyLen+1);
-    amt = write(m_fd, k.string(), keyLen+1);
-    if (amt != keyLen+1) {
-        m_status = errno;
-        return m_status;
-    }
-    m_pos += amt;
-
-    amt = write_padding_for(keyLen+1);
-
-    m_entityCount++;
-
-    return amt;
-}
-
-status_t
-BackupDataWriter::WriteEntityData(const void* data, size_t size)
-{
-    if (DEBUG) ALOGD("Writing data: size=%lu", (unsigned long) size);
-
-    if (m_status != NO_ERROR) {
-        if (DEBUG) {
-            ALOGD("Not writing data - stream in error state %d (%s)", m_status, strerror(m_status));
-        }
-        return m_status;
-    }
-
-    // We don't write padding here, because they're allowed to call this several
-    // times with smaller buffers.  We write it at the end of WriteEntityHeader
-    // instead.
-    ssize_t amt = write(m_fd, data, size);
-    if (amt != (ssize_t)size) {
-        m_status = errno;
-        if (DEBUG) ALOGD("write returned error %d (%s)", m_status, strerror(m_status));
-        return m_status;
-    }
-    m_pos += amt;
-    return NO_ERROR;
-}
-
-void
-BackupDataWriter::SetKeyPrefix(const String8& keyPrefix)
-{
-    m_keyPrefix = keyPrefix;
-}
-
-
-BackupDataReader::BackupDataReader(int fd)
-    :m_fd(fd),
-     m_done(false),
-     m_status(NO_ERROR),
-     m_pos(0),
-     m_entityCount(0)
-{
-    memset(&m_header, 0, sizeof(m_header));
-}
-
-BackupDataReader::~BackupDataReader()
-{
-}
-
-status_t
-BackupDataReader::Status()
-{
-    return m_status;
-}
-
-#define CHECK_SIZE(actual, expected) \
-    do { \
-        if ((actual) != (expected)) { \
-            if ((actual) == 0) { \
-                m_status = EIO; \
-                m_done = true; \
-            } else { \
-                m_status = errno; \
-                ALOGD("CHECK_SIZE(a=%ld e=%ld) failed at line %d m_status='%s'", \
-                    long(actual), long(expected), __LINE__, strerror(m_status)); \
-            } \
-            return m_status; \
-        } \
-    } while(0)
-#define SKIP_PADDING() \
-    do { \
-        status_t err = skip_padding(); \
-        if (err != NO_ERROR) { \
-            ALOGD("SKIP_PADDING FAILED at line %d", __LINE__); \
-            m_status = err; \
-            return err; \
-        } \
-    } while(0)
-
-status_t
-BackupDataReader::ReadNextHeader(bool* done, int* type)
-{
-    *done = m_done;
-    if (m_status != NO_ERROR) {
-        return m_status;
-    }
-
-    int amt;
-
-    amt = skip_padding();
-    if (amt == EIO) {
-        *done = m_done = true;
-        return NO_ERROR;
-    }
-    else if (amt != NO_ERROR) {
-        return amt;
-    }
-    amt = read(m_fd, &m_header, sizeof(m_header));
-    *done = m_done = (amt == 0);
-    if (*done) {
-        return NO_ERROR;
-    }
-    CHECK_SIZE(amt, sizeof(m_header));
-    m_pos += sizeof(m_header);
-    if (type) {
-        *type = m_header.type;
-    }
-
-    // validate and fix up the fields.
-    m_header.type = fromlel(m_header.type);
-    switch (m_header.type)
-    {
-        case BACKUP_HEADER_ENTITY_V1:
-        {
-            m_header.entity.keyLen = fromlel(m_header.entity.keyLen);
-            if (m_header.entity.keyLen <= 0) {
-                ALOGD("Entity header at %d has keyLen<=0: 0x%08x\n", (int)m_pos,
-                        (int)m_header.entity.keyLen);
-                m_status = EINVAL;
-            }
-            m_header.entity.dataSize = fromlel(m_header.entity.dataSize);
-            m_entityCount++;
-
-            // read the rest of the header (filename)
-            size_t size = m_header.entity.keyLen;
-            char* buf = m_key.lockBuffer(size);
-            if (buf == NULL) {
-                m_status = ENOMEM;
-                return m_status;
-            }
-            int amt = read(m_fd, buf, size+1);
-            CHECK_SIZE(amt, (int)size+1);
-            m_key.unlockBuffer(size);
-            m_pos += size+1;
-            SKIP_PADDING();
-            m_dataEndPos = m_pos + m_header.entity.dataSize;
-
-            break;
-        }
-        default:
-            ALOGD("Chunk header at %d has invalid type: 0x%08x",
-                    (int)(m_pos - sizeof(m_header)), (int)m_header.type);
-            m_status = EINVAL;
-    }
-    
-    return m_status;
-}
-
-bool
-BackupDataReader::HasEntities()
-{
-    return m_status == NO_ERROR && m_header.type == BACKUP_HEADER_ENTITY_V1;
-}
-
-status_t
-BackupDataReader::ReadEntityHeader(String8* key, size_t* dataSize)
-{
-    if (m_status != NO_ERROR) {
-        return m_status;
-    }
-    if (m_header.type != BACKUP_HEADER_ENTITY_V1) {
-        return EINVAL;
-    }
-    *key = m_key;
-    *dataSize = m_header.entity.dataSize;
-    return NO_ERROR;
-}
-
-status_t
-BackupDataReader::SkipEntityData()
-{
-    if (m_status != NO_ERROR) {
-        return m_status;
-    }
-    if (m_header.type != BACKUP_HEADER_ENTITY_V1) {
-        return EINVAL;
-    }
-    if (m_header.entity.dataSize > 0) {
-        int pos = lseek(m_fd, m_dataEndPos, SEEK_SET);
-        if (pos == -1) {
-            return errno;
-        }
-    }
-    SKIP_PADDING();
-    return NO_ERROR;
-}
-
-ssize_t
-BackupDataReader::ReadEntityData(void* data, size_t size)
-{
-    if (m_status != NO_ERROR) {
-        return -1;
-    }
-    int remaining = m_dataEndPos - m_pos;
-    //ALOGD("ReadEntityData size=%d m_pos=0x%x m_dataEndPos=0x%x remaining=%d\n",
-    //        size, m_pos, m_dataEndPos, remaining);
-    if (remaining <= 0) {
-        return 0;
-    }
-    if (((int)size) > remaining) {
-        size = remaining;
-    }
-    //ALOGD("   reading %d bytes", size);
-    int amt = read(m_fd, data, size);
-    if (amt < 0) {
-        m_status = errno;
-        return -1;
-    }
-    if (amt == 0) {
-        m_status = EIO;
-        m_done = true;
-    }
-    m_pos += amt;
-    return amt;
-}
-
-status_t
-BackupDataReader::skip_padding()
-{
-    ssize_t amt;
-    ssize_t paddingSize;
-
-    paddingSize = padding_extra(m_pos);
-    if (paddingSize > 0) {
-        uint32_t padding;
-        amt = read(m_fd, &padding, paddingSize);
-        CHECK_SIZE(amt, paddingSize);
-        m_pos += amt;
-    }
-    return NO_ERROR;
-}
-
-
-} // namespace android