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-rw-r--r--otautil/Android.mk35
-rw-r--r--otautil/DirUtil.cpp (renamed from minzip/DirUtil.cpp)0
-rw-r--r--otautil/DirUtil.h (renamed from minzip/DirUtil.h)0
-rw-r--r--otautil/SysUtil.cpp (renamed from minzip/SysUtil.cpp)0
-rw-r--r--otautil/SysUtil.h (renamed from minzip/SysUtil.h)0
-rw-r--r--otautil/ZipUtil.cpp121
-rw-r--r--otautil/ZipUtil.h57
7 files changed, 213 insertions, 0 deletions
diff --git a/otautil/Android.mk b/otautil/Android.mk
new file mode 100644
index 000000000..3acfa533e
--- /dev/null
+++ b/otautil/Android.mk
@@ -0,0 +1,35 @@
+# Copyright (C) 2016 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.
+
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ SysUtil.cpp \
+ DirUtil.cpp \
+ ZipUtil.cpp
+
+LOCAL_C_INCLUDES := \
+ external/zlib \
+ external/safe-iop/include
+
+LOCAL_STATIC_LIBRARIES := libselinux libbase
+
+LOCAL_MODULE := libotautil
+
+LOCAL_CLANG := true
+
+LOCAL_CFLAGS += -Werror -Wall
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/minzip/DirUtil.cpp b/otautil/DirUtil.cpp
index e08e360c0..e08e360c0 100644
--- a/minzip/DirUtil.cpp
+++ b/otautil/DirUtil.cpp
diff --git a/minzip/DirUtil.h b/otautil/DirUtil.h
index 85b83c387..85b83c387 100644
--- a/minzip/DirUtil.h
+++ b/otautil/DirUtil.h
diff --git a/minzip/SysUtil.cpp b/otautil/SysUtil.cpp
index efeb91c88..efeb91c88 100644
--- a/minzip/SysUtil.cpp
+++ b/otautil/SysUtil.cpp
diff --git a/minzip/SysUtil.h b/otautil/SysUtil.h
index 7adff1e54..7adff1e54 100644
--- a/minzip/SysUtil.h
+++ b/otautil/SysUtil.h
diff --git a/otautil/ZipUtil.cpp b/otautil/ZipUtil.cpp
new file mode 100644
index 000000000..714c956ed
--- /dev/null
+++ b/otautil/ZipUtil.cpp
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#include "ZipUtil.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <utime.h>
+
+#include <string>
+
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+#include <selinux/label.h>
+#include <selinux/selinux.h>
+#include <ziparchive/zip_archive.h>
+
+#include "DirUtil.h"
+
+static constexpr mode_t UNZIP_DIRMODE = 0755;
+static constexpr mode_t UNZIP_FILEMODE = 0644;
+
+bool ExtractPackageRecursive(ZipArchiveHandle zip, const std::string& zip_path,
+ const std::string& dest_path, const struct utimbuf* timestamp,
+ struct selabel_handle* sehnd) {
+ if (!zip_path.empty() && zip_path[0] == '/') {
+ LOG(ERROR) << "ExtractPackageRecursive(): zip_path must be a relative path " << zip_path;
+ return false;
+ }
+ if (dest_path.empty() || dest_path[0] != '/') {
+ LOG(ERROR) << "ExtractPackageRecursive(): dest_path must be an absolute path " << dest_path;
+ return false;
+ }
+
+ void* cookie;
+ std::string target_dir(dest_path);
+ if (dest_path.back() != '/') {
+ target_dir += '/';
+ }
+ std::string prefix_path(zip_path);
+ if (!zip_path.empty() && zip_path.back() != '/') {
+ prefix_path += '/';
+ }
+ const ZipString zip_prefix(prefix_path.c_str());
+
+ int ret = StartIteration(zip, &cookie, &zip_prefix, nullptr);
+ if (ret != 0) {
+ LOG(ERROR) << "failed to start iterating zip entries.";
+ return false;
+ }
+
+ std::unique_ptr<void, decltype(&EndIteration)> guard(cookie, EndIteration);
+ ZipEntry entry;
+ ZipString name;
+ int extractCount = 0;
+ while (Next(cookie, &entry, &name) == 0) {
+ std::string entry_name(name.name, name.name + name.name_length);
+ CHECK_LE(prefix_path.size(), entry_name.size());
+ std::string path = target_dir + entry_name.substr(prefix_path.size());
+ // Skip dir.
+ if (path.back() == '/') {
+ continue;
+ }
+ //TODO(b/31917448) handle the symlink.
+
+ if (dirCreateHierarchy(path.c_str(), UNZIP_DIRMODE, timestamp, true, sehnd) != 0) {
+ LOG(ERROR) << "failed to create dir for " << path;
+ return false;
+ }
+
+ char *secontext = NULL;
+ if (sehnd) {
+ selabel_lookup(sehnd, &secontext, path.c_str(), UNZIP_FILEMODE);
+ setfscreatecon(secontext);
+ }
+ android::base::unique_fd fd(open(path.c_str(), O_CREAT|O_WRONLY|O_TRUNC, UNZIP_FILEMODE));
+ if (fd == -1) {
+ PLOG(ERROR) << "Can't create target file \"" << path << "\"";
+ return false;
+ }
+ if (secontext) {
+ freecon(secontext);
+ setfscreatecon(NULL);
+ }
+
+ int err = ExtractEntryToFile(zip, &entry, fd);
+ if (err != 0) {
+ LOG(ERROR) << "Error extracting \"" << path << "\" : " << ErrorCodeString(err);
+ return false;
+ }
+
+ if (fsync(fd) != 0) {
+ PLOG(ERROR) << "Error syncing file descriptor when extracting \"" << path << "\"";
+ return false;
+ }
+
+ if (timestamp != nullptr && utime(path.c_str(), timestamp)) {
+ PLOG(ERROR) << "Error touching \"" << path << "\"";
+ return false;
+ }
+
+ LOG(INFO) << "Extracted file \"" << path << "\"";
+ ++extractCount;
+ }
+
+ LOG(INFO) << "Extracted " << extractCount << " file(s)";
+ return true;
+}
diff --git a/otautil/ZipUtil.h b/otautil/ZipUtil.h
new file mode 100644
index 000000000..cda405c2a
--- /dev/null
+++ b/otautil/ZipUtil.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2016 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 _OTAUTIL_ZIPUTIL_H
+#define _OTAUTIL_ZIPUTIL_H
+
+#include <utime.h>
+
+#include <string>
+
+#include <selinux/label.h>
+#include <ziparchive/zip_archive.h>
+
+/*
+ * Inflate all files under zip_path to the directory specified by
+ * dest_path, which must exist and be a writable directory. The zip_path
+ * is allowed to be an empty string, in which case the whole package
+ * will be extracted.
+ *
+ * Directory entries are not extracted.
+ *
+ * The immediate children of zip_path will become the immediate
+ * children of dest_path; e.g., if the archive contains the entries
+ *
+ * a/b/c/one
+ * a/b/c/two
+ * a/b/c/d/three
+ *
+ * and ExtractPackageRecursive(a, "a/b/c", "/tmp", ...) is called, the resulting
+ * files will be
+ *
+ * /tmp/one
+ * /tmp/two
+ * /tmp/d/three
+ *
+ * If timestamp is non-NULL, file timestamps will be set accordingly.
+ *
+ * Returns true on success, false on failure.
+ */
+bool ExtractPackageRecursive(ZipArchiveHandle zip, const std::string& zip_path,
+ const std::string& dest_path, const struct utimbuf* timestamp,
+ struct selabel_handle* sehnd);
+
+#endif // _OTAUTIL_ZIPUTIL_H
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