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-rw-r--r--libs/utils/ZipEntry.cpp696
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diff --git a/libs/utils/ZipEntry.cpp b/libs/utils/ZipEntry.cpp
new file mode 100644
index 0000000..fbc9e67
--- /dev/null
+++ b/libs/utils/ZipEntry.cpp
@@ -0,0 +1,696 @@
+/*
+ * Copyright (C) 2006 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.
+ */
+
+//
+// Access to entries in a Zip archive.
+//
+
+#define LOG_TAG "zip"
+
+#include "utils/ZipEntry.h"
+#include "utils/Log.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+
+using namespace android;
+
+/*
+ * Initialize a new ZipEntry structure from a FILE* positioned at a
+ * CentralDirectoryEntry.
+ *
+ * On exit, the file pointer will be at the start of the next CDE or
+ * at the EOCD.
+ */
+status_t ZipEntry::initFromCDE(FILE* fp)
+{
+ status_t result;
+ long posn;
+ bool hasDD;
+
+ //LOGV("initFromCDE ---\n");
+
+ /* read the CDE */
+ result = mCDE.read(fp);
+ if (result != NO_ERROR) {
+ LOGD("mCDE.read failed\n");
+ return result;
+ }
+
+ //mCDE.dump();
+
+ /* using the info in the CDE, go load up the LFH */
+ posn = ftell(fp);
+ if (fseek(fp, mCDE.mLocalHeaderRelOffset, SEEK_SET) != 0) {
+ LOGD("local header seek failed (%ld)\n",
+ mCDE.mLocalHeaderRelOffset);
+ return UNKNOWN_ERROR;
+ }
+
+ result = mLFH.read(fp);
+ if (result != NO_ERROR) {
+ LOGD("mLFH.read failed\n");
+ return result;
+ }
+
+ if (fseek(fp, posn, SEEK_SET) != 0)
+ return UNKNOWN_ERROR;
+
+ //mLFH.dump();
+
+ /*
+ * We *might* need to read the Data Descriptor at this point and
+ * integrate it into the LFH. If this bit is set, the CRC-32,
+ * compressed size, and uncompressed size will be zero. In practice
+ * these seem to be rare.
+ */
+ hasDD = (mLFH.mGPBitFlag & kUsesDataDescr) != 0;
+ if (hasDD) {
+ // do something clever
+ //LOGD("+++ has data descriptor\n");
+ }
+
+ /*
+ * Sanity-check the LFH. Note that this will fail if the "kUsesDataDescr"
+ * flag is set, because the LFH is incomplete. (Not a problem, since we
+ * prefer the CDE values.)
+ */
+ if (!hasDD && !compareHeaders()) {
+ LOGW("WARNING: header mismatch\n");
+ // keep going?
+ }
+
+ /*
+ * If the mVersionToExtract is greater than 20, we may have an
+ * issue unpacking the record -- could be encrypted, compressed
+ * with something we don't support, or use Zip64 extensions. We
+ * can defer worrying about that to when we're extracting data.
+ */
+
+ return NO_ERROR;
+}
+
+/*
+ * Initialize a new entry. Pass in the file name and an optional comment.
+ *
+ * Initializes the CDE and the LFH.
+ */
+void ZipEntry::initNew(const char* fileName, const char* comment)
+{
+ assert(fileName != NULL && *fileName != '\0'); // name required
+
+ /* most fields are properly initialized by constructor */
+ mCDE.mVersionMadeBy = kDefaultMadeBy;
+ mCDE.mVersionToExtract = kDefaultVersion;
+ mCDE.mCompressionMethod = kCompressStored;
+ mCDE.mFileNameLength = strlen(fileName);
+ if (comment != NULL)
+ mCDE.mFileCommentLength = strlen(comment);
+ mCDE.mExternalAttrs = 0x81b60020; // matches what WinZip does
+
+ if (mCDE.mFileNameLength > 0) {
+ mCDE.mFileName = new unsigned char[mCDE.mFileNameLength+1];
+ strcpy((char*) mCDE.mFileName, fileName);
+ }
+ if (mCDE.mFileCommentLength > 0) {
+ /* TODO: stop assuming null-terminated ASCII here? */
+ mCDE.mFileComment = new unsigned char[mCDE.mFileCommentLength+1];
+ strcpy((char*) mCDE.mFileComment, comment);
+ }
+
+ copyCDEtoLFH();
+}
+
+/*
+ * Initialize a new entry, starting with the ZipEntry from a different
+ * archive.
+ *
+ * Initializes the CDE and the LFH.
+ */
+status_t ZipEntry::initFromExternal(const ZipFile* pZipFile,
+ const ZipEntry* pEntry)
+{
+ /*
+ * Copy everything in the CDE over, then fix up the hairy bits.
+ */
+ memcpy(&mCDE, &pEntry->mCDE, sizeof(mCDE));
+
+ if (mCDE.mFileNameLength > 0) {
+ mCDE.mFileName = new unsigned char[mCDE.mFileNameLength+1];
+ if (mCDE.mFileName == NULL)
+ return NO_MEMORY;
+ strcpy((char*) mCDE.mFileName, (char*)pEntry->mCDE.mFileName);
+ }
+ if (mCDE.mFileCommentLength > 0) {
+ mCDE.mFileComment = new unsigned char[mCDE.mFileCommentLength+1];
+ if (mCDE.mFileComment == NULL)
+ return NO_MEMORY;
+ strcpy((char*) mCDE.mFileComment, (char*)pEntry->mCDE.mFileComment);
+ }
+ if (mCDE.mExtraFieldLength > 0) {
+ /* we null-terminate this, though it may not be a string */
+ mCDE.mExtraField = new unsigned char[mCDE.mExtraFieldLength+1];
+ if (mCDE.mExtraField == NULL)
+ return NO_MEMORY;
+ memcpy(mCDE.mExtraField, pEntry->mCDE.mExtraField,
+ mCDE.mExtraFieldLength+1);
+ }
+
+ /* construct the LFH from the CDE */
+ copyCDEtoLFH();
+
+ /*
+ * The LFH "extra" field is independent of the CDE "extra", so we
+ * handle it here.
+ */
+ assert(mLFH.mExtraField == NULL);
+ mLFH.mExtraFieldLength = pEntry->mLFH.mExtraFieldLength;
+ if (mLFH.mExtraFieldLength > 0) {
+ mLFH.mExtraField = new unsigned char[mLFH.mExtraFieldLength+1];
+ if (mLFH.mExtraField == NULL)
+ return NO_MEMORY;
+ memcpy(mLFH.mExtraField, pEntry->mLFH.mExtraField,
+ mLFH.mExtraFieldLength+1);
+ }
+
+ return NO_ERROR;
+}
+
+/*
+ * Insert pad bytes in the LFH by tweaking the "extra" field. This will
+ * potentially confuse something that put "extra" data in here earlier,
+ * but I can't find an actual problem.
+ */
+status_t ZipEntry::addPadding(int padding)
+{
+ if (padding <= 0)
+ return INVALID_OPERATION;
+
+ //LOGI("HEY: adding %d pad bytes to existing %d in %s\n",
+ // padding, mLFH.mExtraFieldLength, mCDE.mFileName);
+
+ if (mLFH.mExtraFieldLength > 0) {
+ /* extend existing field */
+ unsigned char* newExtra;
+
+ newExtra = new unsigned char[mLFH.mExtraFieldLength + padding];
+ if (newExtra == NULL)
+ return NO_MEMORY;
+ memset(newExtra + mLFH.mExtraFieldLength, 0, padding);
+ memcpy(newExtra, mLFH.mExtraField, mLFH.mExtraFieldLength);
+
+ delete[] mLFH.mExtraField;
+ mLFH.mExtraField = newExtra;
+ mLFH.mExtraFieldLength += padding;
+ } else {
+ /* create new field */
+ mLFH.mExtraField = new unsigned char[padding];
+ memset(mLFH.mExtraField, 0, padding);
+ mLFH.mExtraFieldLength = padding;
+ }
+
+ return NO_ERROR;
+}
+
+/*
+ * Set the fields in the LFH equal to the corresponding fields in the CDE.
+ *
+ * This does not touch the LFH "extra" field.
+ */
+void ZipEntry::copyCDEtoLFH(void)
+{
+ mLFH.mVersionToExtract = mCDE.mVersionToExtract;
+ mLFH.mGPBitFlag = mCDE.mGPBitFlag;
+ mLFH.mCompressionMethod = mCDE.mCompressionMethod;
+ mLFH.mLastModFileTime = mCDE.mLastModFileTime;
+ mLFH.mLastModFileDate = mCDE.mLastModFileDate;
+ mLFH.mCRC32 = mCDE.mCRC32;
+ mLFH.mCompressedSize = mCDE.mCompressedSize;
+ mLFH.mUncompressedSize = mCDE.mUncompressedSize;
+ mLFH.mFileNameLength = mCDE.mFileNameLength;
+ // the "extra field" is independent
+
+ delete[] mLFH.mFileName;
+ if (mLFH.mFileNameLength > 0) {
+ mLFH.mFileName = new unsigned char[mLFH.mFileNameLength+1];
+ strcpy((char*) mLFH.mFileName, (const char*) mCDE.mFileName);
+ } else {
+ mLFH.mFileName = NULL;
+ }
+}
+
+/*
+ * Set some information about a file after we add it.
+ */
+void ZipEntry::setDataInfo(long uncompLen, long compLen, unsigned long crc32,
+ int compressionMethod)
+{
+ mCDE.mCompressionMethod = compressionMethod;
+ mCDE.mCRC32 = crc32;
+ mCDE.mCompressedSize = compLen;
+ mCDE.mUncompressedSize = uncompLen;
+ mCDE.mCompressionMethod = compressionMethod;
+ if (compressionMethod == kCompressDeflated) {
+ mCDE.mGPBitFlag |= 0x0002; // indicates maximum compression used
+ }
+ copyCDEtoLFH();
+}
+
+/*
+ * See if the data in mCDE and mLFH match up. This is mostly useful for
+ * debugging these classes, but it can be used to identify damaged
+ * archives.
+ *
+ * Returns "false" if they differ.
+ */
+bool ZipEntry::compareHeaders(void) const
+{
+ if (mCDE.mVersionToExtract != mLFH.mVersionToExtract) {
+ LOGV("cmp: VersionToExtract\n");
+ return false;
+ }
+ if (mCDE.mGPBitFlag != mLFH.mGPBitFlag) {
+ LOGV("cmp: GPBitFlag\n");
+ return false;
+ }
+ if (mCDE.mCompressionMethod != mLFH.mCompressionMethod) {
+ LOGV("cmp: CompressionMethod\n");
+ return false;
+ }
+ if (mCDE.mLastModFileTime != mLFH.mLastModFileTime) {
+ LOGV("cmp: LastModFileTime\n");
+ return false;
+ }
+ if (mCDE.mLastModFileDate != mLFH.mLastModFileDate) {
+ LOGV("cmp: LastModFileDate\n");
+ return false;
+ }
+ if (mCDE.mCRC32 != mLFH.mCRC32) {
+ LOGV("cmp: CRC32\n");
+ return false;
+ }
+ if (mCDE.mCompressedSize != mLFH.mCompressedSize) {
+ LOGV("cmp: CompressedSize\n");
+ return false;
+ }
+ if (mCDE.mUncompressedSize != mLFH.mUncompressedSize) {
+ LOGV("cmp: UncompressedSize\n");
+ return false;
+ }
+ if (mCDE.mFileNameLength != mLFH.mFileNameLength) {
+ LOGV("cmp: FileNameLength\n");
+ return false;
+ }
+#if 0 // this seems to be used for padding, not real data
+ if (mCDE.mExtraFieldLength != mLFH.mExtraFieldLength) {
+ LOGV("cmp: ExtraFieldLength\n");
+ return false;
+ }
+#endif
+ if (mCDE.mFileName != NULL) {
+ if (strcmp((char*) mCDE.mFileName, (char*) mLFH.mFileName) != 0) {
+ LOGV("cmp: FileName\n");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+
+/*
+ * Convert the DOS date/time stamp into a UNIX time stamp.
+ */
+time_t ZipEntry::getModWhen(void) const
+{
+ struct tm parts;
+
+ parts.tm_sec = (mCDE.mLastModFileTime & 0x001f) << 1;
+ parts.tm_min = (mCDE.mLastModFileTime & 0x07e0) >> 5;
+ parts.tm_hour = (mCDE.mLastModFileTime & 0xf800) >> 11;
+ parts.tm_mday = (mCDE.mLastModFileDate & 0x001f);
+ parts.tm_mon = ((mCDE.mLastModFileDate & 0x01e0) >> 5) -1;
+ parts.tm_year = ((mCDE.mLastModFileDate & 0xfe00) >> 9) + 80;
+ parts.tm_wday = parts.tm_yday = 0;
+ parts.tm_isdst = -1; // DST info "not available"
+
+ return mktime(&parts);
+}
+
+/*
+ * Set the CDE/LFH timestamp from UNIX time.
+ */
+void ZipEntry::setModWhen(time_t when)
+{
+#ifdef HAVE_LOCALTIME_R
+ struct tm tmResult;
+#endif
+ time_t even;
+ unsigned short zdate, ztime;
+
+ struct tm* ptm;
+
+ /* round up to an even number of seconds */
+ even = (time_t)(((unsigned long)(when) + 1) & (~1));
+
+ /* expand */
+#ifdef HAVE_LOCALTIME_R
+ ptm = localtime_r(&even, &tmResult);
+#else
+ ptm = localtime(&even);
+#endif
+
+ int year;
+ year = ptm->tm_year;
+ if (year < 80)
+ year = 80;
+
+ zdate = (year - 80) << 9 | (ptm->tm_mon+1) << 5 | ptm->tm_mday;
+ ztime = ptm->tm_hour << 11 | ptm->tm_min << 5 | ptm->tm_sec >> 1;
+
+ mCDE.mLastModFileTime = mLFH.mLastModFileTime = ztime;
+ mCDE.mLastModFileDate = mLFH.mLastModFileDate = zdate;
+}
+
+
+/*
+ * ===========================================================================
+ * ZipEntry::LocalFileHeader
+ * ===========================================================================
+ */
+
+/*
+ * Read a local file header.
+ *
+ * On entry, "fp" points to the signature at the start of the header.
+ * On exit, "fp" points to the start of data.
+ */
+status_t ZipEntry::LocalFileHeader::read(FILE* fp)
+{
+ status_t result = NO_ERROR;
+ unsigned char buf[kLFHLen];
+
+ assert(mFileName == NULL);
+ assert(mExtraField == NULL);
+
+ if (fread(buf, 1, kLFHLen, fp) != kLFHLen) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+
+ if (ZipEntry::getLongLE(&buf[0x00]) != kSignature) {
+ LOGD("whoops: didn't find expected signature\n");
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+
+ mVersionToExtract = ZipEntry::getShortLE(&buf[0x04]);
+ mGPBitFlag = ZipEntry::getShortLE(&buf[0x06]);
+ mCompressionMethod = ZipEntry::getShortLE(&buf[0x08]);
+ mLastModFileTime = ZipEntry::getShortLE(&buf[0x0a]);
+ mLastModFileDate = ZipEntry::getShortLE(&buf[0x0c]);
+ mCRC32 = ZipEntry::getLongLE(&buf[0x0e]);
+ mCompressedSize = ZipEntry::getLongLE(&buf[0x12]);
+ mUncompressedSize = ZipEntry::getLongLE(&buf[0x16]);
+ mFileNameLength = ZipEntry::getShortLE(&buf[0x1a]);
+ mExtraFieldLength = ZipEntry::getShortLE(&buf[0x1c]);
+
+ // TODO: validate sizes
+
+ /* grab filename */
+ if (mFileNameLength != 0) {
+ mFileName = new unsigned char[mFileNameLength+1];
+ if (mFileName == NULL) {
+ result = NO_MEMORY;
+ goto bail;
+ }
+ if (fread(mFileName, 1, mFileNameLength, fp) != mFileNameLength) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+ mFileName[mFileNameLength] = '\0';
+ }
+
+ /* grab extra field */
+ if (mExtraFieldLength != 0) {
+ mExtraField = new unsigned char[mExtraFieldLength+1];
+ if (mExtraField == NULL) {
+ result = NO_MEMORY;
+ goto bail;
+ }
+ if (fread(mExtraField, 1, mExtraFieldLength, fp) != mExtraFieldLength) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+ mExtraField[mExtraFieldLength] = '\0';
+ }
+
+bail:
+ return result;
+}
+
+/*
+ * Write a local file header.
+ */
+status_t ZipEntry::LocalFileHeader::write(FILE* fp)
+{
+ unsigned char buf[kLFHLen];
+
+ ZipEntry::putLongLE(&buf[0x00], kSignature);
+ ZipEntry::putShortLE(&buf[0x04], mVersionToExtract);
+ ZipEntry::putShortLE(&buf[0x06], mGPBitFlag);
+ ZipEntry::putShortLE(&buf[0x08], mCompressionMethod);
+ ZipEntry::putShortLE(&buf[0x0a], mLastModFileTime);
+ ZipEntry::putShortLE(&buf[0x0c], mLastModFileDate);
+ ZipEntry::putLongLE(&buf[0x0e], mCRC32);
+ ZipEntry::putLongLE(&buf[0x12], mCompressedSize);
+ ZipEntry::putLongLE(&buf[0x16], mUncompressedSize);
+ ZipEntry::putShortLE(&buf[0x1a], mFileNameLength);
+ ZipEntry::putShortLE(&buf[0x1c], mExtraFieldLength);
+
+ if (fwrite(buf, 1, kLFHLen, fp) != kLFHLen)
+ return UNKNOWN_ERROR;
+
+ /* write filename */
+ if (mFileNameLength != 0) {
+ if (fwrite(mFileName, 1, mFileNameLength, fp) != mFileNameLength)
+ return UNKNOWN_ERROR;
+ }
+
+ /* write "extra field" */
+ if (mExtraFieldLength != 0) {
+ if (fwrite(mExtraField, 1, mExtraFieldLength, fp) != mExtraFieldLength)
+ return UNKNOWN_ERROR;
+ }
+
+ return NO_ERROR;
+}
+
+
+/*
+ * Dump the contents of a LocalFileHeader object.
+ */
+void ZipEntry::LocalFileHeader::dump(void) const
+{
+ LOGD(" LocalFileHeader contents:\n");
+ LOGD(" versToExt=%u gpBits=0x%04x compression=%u\n",
+ mVersionToExtract, mGPBitFlag, mCompressionMethod);
+ LOGD(" modTime=0x%04x modDate=0x%04x crc32=0x%08lx\n",
+ mLastModFileTime, mLastModFileDate, mCRC32);
+ LOGD(" compressedSize=%lu uncompressedSize=%lu\n",
+ mCompressedSize, mUncompressedSize);
+ LOGD(" filenameLen=%u extraLen=%u\n",
+ mFileNameLength, mExtraFieldLength);
+ if (mFileName != NULL)
+ LOGD(" filename: '%s'\n", mFileName);
+}
+
+
+/*
+ * ===========================================================================
+ * ZipEntry::CentralDirEntry
+ * ===========================================================================
+ */
+
+/*
+ * Read the central dir entry that appears next in the file.
+ *
+ * On entry, "fp" should be positioned on the signature bytes for the
+ * entry. On exit, "fp" will point at the signature word for the next
+ * entry or for the EOCD.
+ */
+status_t ZipEntry::CentralDirEntry::read(FILE* fp)
+{
+ status_t result = NO_ERROR;
+ unsigned char buf[kCDELen];
+
+ /* no re-use */
+ assert(mFileName == NULL);
+ assert(mExtraField == NULL);
+ assert(mFileComment == NULL);
+
+ if (fread(buf, 1, kCDELen, fp) != kCDELen) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+
+ if (ZipEntry::getLongLE(&buf[0x00]) != kSignature) {
+ LOGD("Whoops: didn't find expected signature\n");
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+
+ mVersionMadeBy = ZipEntry::getShortLE(&buf[0x04]);
+ mVersionToExtract = ZipEntry::getShortLE(&buf[0x06]);
+ mGPBitFlag = ZipEntry::getShortLE(&buf[0x08]);
+ mCompressionMethod = ZipEntry::getShortLE(&buf[0x0a]);
+ mLastModFileTime = ZipEntry::getShortLE(&buf[0x0c]);
+ mLastModFileDate = ZipEntry::getShortLE(&buf[0x0e]);
+ mCRC32 = ZipEntry::getLongLE(&buf[0x10]);
+ mCompressedSize = ZipEntry::getLongLE(&buf[0x14]);
+ mUncompressedSize = ZipEntry::getLongLE(&buf[0x18]);
+ mFileNameLength = ZipEntry::getShortLE(&buf[0x1c]);
+ mExtraFieldLength = ZipEntry::getShortLE(&buf[0x1e]);
+ mFileCommentLength = ZipEntry::getShortLE(&buf[0x20]);
+ mDiskNumberStart = ZipEntry::getShortLE(&buf[0x22]);
+ mInternalAttrs = ZipEntry::getShortLE(&buf[0x24]);
+ mExternalAttrs = ZipEntry::getLongLE(&buf[0x26]);
+ mLocalHeaderRelOffset = ZipEntry::getLongLE(&buf[0x2a]);
+
+ // TODO: validate sizes and offsets
+
+ /* grab filename */
+ if (mFileNameLength != 0) {
+ mFileName = new unsigned char[mFileNameLength+1];
+ if (mFileName == NULL) {
+ result = NO_MEMORY;
+ goto bail;
+ }
+ if (fread(mFileName, 1, mFileNameLength, fp) != mFileNameLength) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+ mFileName[mFileNameLength] = '\0';
+ }
+
+ /* read "extra field" */
+ if (mExtraFieldLength != 0) {
+ mExtraField = new unsigned char[mExtraFieldLength+1];
+ if (mExtraField == NULL) {
+ result = NO_MEMORY;
+ goto bail;
+ }
+ if (fread(mExtraField, 1, mExtraFieldLength, fp) != mExtraFieldLength) {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+ mExtraField[mExtraFieldLength] = '\0';
+ }
+
+
+ /* grab comment, if any */
+ if (mFileCommentLength != 0) {
+ mFileComment = new unsigned char[mFileCommentLength+1];
+ if (mFileComment == NULL) {
+ result = NO_MEMORY;
+ goto bail;
+ }
+ if (fread(mFileComment, 1, mFileCommentLength, fp) != mFileCommentLength)
+ {
+ result = UNKNOWN_ERROR;
+ goto bail;
+ }
+ mFileComment[mFileCommentLength] = '\0';
+ }
+
+bail:
+ return result;
+}
+
+/*
+ * Write a central dir entry.
+ */
+status_t ZipEntry::CentralDirEntry::write(FILE* fp)
+{
+ unsigned char buf[kCDELen];
+
+ ZipEntry::putLongLE(&buf[0x00], kSignature);
+ ZipEntry::putShortLE(&buf[0x04], mVersionMadeBy);
+ ZipEntry::putShortLE(&buf[0x06], mVersionToExtract);
+ ZipEntry::putShortLE(&buf[0x08], mGPBitFlag);
+ ZipEntry::putShortLE(&buf[0x0a], mCompressionMethod);
+ ZipEntry::putShortLE(&buf[0x0c], mLastModFileTime);
+ ZipEntry::putShortLE(&buf[0x0e], mLastModFileDate);
+ ZipEntry::putLongLE(&buf[0x10], mCRC32);
+ ZipEntry::putLongLE(&buf[0x14], mCompressedSize);
+ ZipEntry::putLongLE(&buf[0x18], mUncompressedSize);
+ ZipEntry::putShortLE(&buf[0x1c], mFileNameLength);
+ ZipEntry::putShortLE(&buf[0x1e], mExtraFieldLength);
+ ZipEntry::putShortLE(&buf[0x20], mFileCommentLength);
+ ZipEntry::putShortLE(&buf[0x22], mDiskNumberStart);
+ ZipEntry::putShortLE(&buf[0x24], mInternalAttrs);
+ ZipEntry::putLongLE(&buf[0x26], mExternalAttrs);
+ ZipEntry::putLongLE(&buf[0x2a], mLocalHeaderRelOffset);
+
+ if (fwrite(buf, 1, kCDELen, fp) != kCDELen)
+ return UNKNOWN_ERROR;
+
+ /* write filename */
+ if (mFileNameLength != 0) {
+ if (fwrite(mFileName, 1, mFileNameLength, fp) != mFileNameLength)
+ return UNKNOWN_ERROR;
+ }
+
+ /* write "extra field" */
+ if (mExtraFieldLength != 0) {
+ if (fwrite(mExtraField, 1, mExtraFieldLength, fp) != mExtraFieldLength)
+ return UNKNOWN_ERROR;
+ }
+
+ /* write comment */
+ if (mFileCommentLength != 0) {
+ if (fwrite(mFileComment, 1, mFileCommentLength, fp) != mFileCommentLength)
+ return UNKNOWN_ERROR;
+ }
+
+ return NO_ERROR;
+}
+
+/*
+ * Dump the contents of a CentralDirEntry object.
+ */
+void ZipEntry::CentralDirEntry::dump(void) const
+{
+ LOGD(" CentralDirEntry contents:\n");
+ LOGD(" versMadeBy=%u versToExt=%u gpBits=0x%04x compression=%u\n",
+ mVersionMadeBy, mVersionToExtract, mGPBitFlag, mCompressionMethod);
+ LOGD(" modTime=0x%04x modDate=0x%04x crc32=0x%08lx\n",
+ mLastModFileTime, mLastModFileDate, mCRC32);
+ LOGD(" compressedSize=%lu uncompressedSize=%lu\n",
+ mCompressedSize, mUncompressedSize);
+ LOGD(" filenameLen=%u extraLen=%u commentLen=%u\n",
+ mFileNameLength, mExtraFieldLength, mFileCommentLength);
+ LOGD(" diskNumStart=%u intAttr=0x%04x extAttr=0x%08lx relOffset=%lu\n",
+ mDiskNumberStart, mInternalAttrs, mExternalAttrs,
+ mLocalHeaderRelOffset);
+
+ if (mFileName != NULL)
+ LOGD(" filename: '%s'\n", mFileName);
+ if (mFileComment != NULL)
+ LOGD(" comment: '%s'\n", mFileComment);
+}
+