7 files changed, 750 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/otautil/DirUtil.cpp b/otautil/DirUtil.cpp
new file mode 100644
index 000000000..e08e360c0
--- /dev/null
+++ b/otautil/DirUtil.cpp
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2007 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 "DirUtil.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <dirent.h>
+#include <limits.h>
+
+#include <string>
+
+#include <selinux/label.h>
+#include <selinux/selinux.h>
+
+typedef enum { DMISSING, DDIR, DILLEGAL } DirStatus;
+
+static DirStatus
+getPathDirStatus(const char *path)
+{
+    struct stat st;
+    int err;
+
+    err = stat(path, &st);
+    if (err == 0) {
+        /* Something's there; make sure it's a directory.
+         */
+        if (S_ISDIR(st.st_mode)) {
+            return DDIR;
+        }
+        errno = ENOTDIR;
+        return DILLEGAL;
+    } else if (errno != ENOENT) {
+        /* Something went wrong, or something in the path
+         * is bad.  Can't do anything in this situation.
+         */
+        return DILLEGAL;
+    }
+    return DMISSING;
+}
+
+int
+dirCreateHierarchy(const char *path, int mode,
+        const struct utimbuf *timestamp, bool stripFileName,
+        struct selabel_handle *sehnd)
+{
+    DirStatus ds;
+
+    /* Check for an empty string before we bother
+     * making any syscalls.
+     */
+    if (path[0] == '\0') {
+        errno = ENOENT;
+        return -1;
+    }
+    // Allocate a path that we can modify; stick a slash on
+    // the end to make things easier.
+    std::string cpath = path;
+    if (stripFileName) {
+        // Strip everything after the last slash.
+        size_t pos = cpath.rfind('/');
+        if (pos == std::string::npos) {
+            errno = ENOENT;
+            return -1;
+        }
+        cpath.resize(pos + 1);
+    } else {
+        // Make sure that the path ends in a slash.
+        cpath.push_back('/');
+    }
+
+    /* See if it already exists.
+     */
+    ds = getPathDirStatus(cpath.c_str());
+    if (ds == DDIR) {
+        return 0;
+    } else if (ds == DILLEGAL) {
+        return -1;
+    }
+
+    /* Walk up the path from the root and make each level.
+     * If a directory already exists, no big deal.
+     */
+    const char *path_start = &cpath[0];
+    char *p = &cpath[0];
+    while (*p != '\0') {
+        /* Skip any slashes, watching out for the end of the string.
+         */
+        while (*p != '\0' && *p == '/') {
+            p++;
+        }
+        if (*p == '\0') {
+            break;
+        }
+
+        /* Find the end of the next path component.
+         * We know that we'll see a slash before the NUL,
+         * because we added it, above.
+         */
+        while (*p != '/') {
+            p++;
+        }
+        *p = '\0';
+
+        /* Check this part of the path and make a new directory
+         * if necessary.
+         */
+        ds = getPathDirStatus(path_start);
+        if (ds == DILLEGAL) {
+            /* Could happen if some other process/thread is
+             * messing with the filesystem.
+             */
+            return -1;
+        } else if (ds == DMISSING) {
+            int err;
+
+            char *secontext = NULL;
+
+            if (sehnd) {
+                selabel_lookup(sehnd, &secontext, path_start, mode);
+                setfscreatecon(secontext);
+            }
+
+            err = mkdir(path_start, mode);
+
+            if (secontext) {
+                freecon(secontext);
+                setfscreatecon(NULL);
+            }
+
+            if (err != 0) {
+                return -1;
+            }
+            if (timestamp != NULL && utime(path_start, timestamp)) {
+                return -1;
+            }
+        }
+        // else, this directory already exists.
+
+        // Repair the path and continue.
+        *p = '/';
+    }
+    return 0;
+}
+
+int
+dirUnlinkHierarchy(const char *path)
+{
+    struct stat st;
+    DIR *dir;
+    struct dirent *de;
+    int fail = 0;
+
+    /* is it a file or directory? */
+    if (lstat(path, &st) < 0) {
+        return -1;
+    }
+
+    /* a file, so unlink it */
+    if (!S_ISDIR(st.st_mode)) {
+        return unlink(path);
+    }
+
+    /* a directory, so open handle */
+    dir = opendir(path);
+    if (dir == NULL) {
+        return -1;
+    }
+
+    /* recurse over components */
+    errno = 0;
+    while ((de = readdir(dir)) != NULL) {
+        //TODO: don't blow the stack
+        char dn[PATH_MAX];
+        if (!strcmp(de->d_name, "..") || !strcmp(de->d_name, ".")) {
+            continue;
+        }
+        snprintf(dn, sizeof(dn), "%s/%s", path, de->d_name);
+        if (dirUnlinkHierarchy(dn) < 0) {
+            fail = 1;
+            break;
+        }
+        errno = 0;
+    }
+    /* in case readdir or unlink_recursive failed */
+    if (fail || errno < 0) {
+        int save = errno;
+        closedir(dir);
+        errno = save;
+        return -1;
+    }
+
+    /* close directory handle */
+    if (closedir(dir) < 0) {
+        return -1;
+    }
+
+    /* delete target directory */
+    return rmdir(path);
+}
diff --git a/otautil/DirUtil.h b/otautil/DirUtil.h
new file mode 100644
index 000000000..85b83c387
--- /dev/null
+++ b/otautil/DirUtil.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2007 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 MINZIP_DIRUTIL_H_
+#define MINZIP_DIRUTIL_H_
+
+#include <stdbool.h>
+#include <utime.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct selabel_handle;
+
+/* Like "mkdir -p", try to guarantee that all directories
+ * specified in path are present, creating as many directories
+ * as necessary.  The specified mode is passed to all mkdir
+ * calls;  no modifications are made to umask.
+ *
+ * If stripFileName is set, everything after the final '/'
+ * is stripped before creating the directory hierarchy.
+ *
+ * If timestamp is non-NULL, new directories will be timestamped accordingly.
+ *
+ * Returns 0 on success; returns -1 (and sets errno) on failure
+ * (usually if some element of path is not a directory).
+ */
+int dirCreateHierarchy(const char *path, int mode,
+        const struct utimbuf *timestamp, bool stripFileName,
+        struct selabel_handle* sehnd);
+
+/* rm -rf <path>
+ */
+int dirUnlinkHierarchy(const char *path);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // MINZIP_DIRUTIL_H_
diff --git a/otautil/SysUtil.cpp b/otautil/SysUtil.cpp
new file mode 100644
index 000000000..efeb91c88
--- /dev/null
+++ b/otautil/SysUtil.cpp
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * System utilities.
+ */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <android-base/logging.h>
+
+#include "SysUtil.h"
+
+static bool sysMapFD(int fd, MemMapping* pMap) {
+    assert(pMap != NULL);
+
+    struct stat sb;
+    if (fstat(fd, &sb) == -1) {
+        PLOG(ERROR) << "fstat(" << fd << ") failed";
+        return false;
+    }
+
+    void* memPtr = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+    if (memPtr == MAP_FAILED) {
+        PLOG(ERROR) << "mmap(" << sb.st_size << ", R, PRIVATE, " << fd << ", 0) failed";
+        return false;
+    }
+
+    pMap->addr = reinterpret_cast<unsigned char*>(memPtr);
+    pMap->length = sb.st_size;
+    pMap->range_count = 1;
+    pMap->ranges = reinterpret_cast<MappedRange*>(malloc(sizeof(MappedRange)));
+    if (pMap->ranges == NULL) {
+        PLOG(ERROR) << "malloc failed";
+        munmap(memPtr, sb.st_size);
+        return false;
+    }
+    pMap->ranges[0].addr = memPtr;
+    pMap->ranges[0].length = sb.st_size;
+
+    return true;
+}
+
+static int sysMapBlockFile(FILE* mapf, MemMapping* pMap)
+{
+    char block_dev[PATH_MAX+1];
+    size_t size;
+    unsigned int blksize;
+    size_t blocks;
+    unsigned int range_count;
+    unsigned int i;
+
+    if (fgets(block_dev, sizeof(block_dev), mapf) == NULL) {
+        PLOG(ERROR) << "failed to read block device from header";
+        return -1;
+    }
+    for (i = 0; i < sizeof(block_dev); ++i) {
+        if (block_dev[i] == '\n') {
+            block_dev[i] = 0;
+            break;
+        }
+    }
+
+    if (fscanf(mapf, "%zu %u\n%u\n", &size, &blksize, &range_count) != 3) {
+        LOG(ERROR) << "failed to parse block map header";
+        return -1;
+    }
+    if (blksize != 0) {
+        blocks = ((size-1) / blksize) + 1;
+    }
+    if (size == 0 || blksize == 0 || blocks > SIZE_MAX / blksize || range_count == 0) {
+        LOG(ERROR) << "invalid data in block map file: size " << size << ", blksize " << blksize
+                   << ", range_count " << range_count;
+        return -1;
+    }
+
+    pMap->range_count = range_count;
+    pMap->ranges = reinterpret_cast<MappedRange*>(calloc(range_count, sizeof(MappedRange)));
+    if (pMap->ranges == NULL) {
+        PLOG(ERROR) << "calloc(" << range_count << ", " << sizeof(MappedRange) << ") failed";
+        return -1;
+    }
+
+    // Reserve enough contiguous address space for the whole file.
+    unsigned char* reserve = reinterpret_cast<unsigned char*>(mmap64(NULL, blocks * blksize,
+            PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0));
+    if (reserve == MAP_FAILED) {
+        PLOG(ERROR) << "failed to reserve address space";
+        free(pMap->ranges);
+        return -1;
+    }
+
+    int fd = open(block_dev, O_RDONLY);
+    if (fd < 0) {
+        PLOG(ERROR) << "failed to open block device " << block_dev;
+        munmap(reserve, blocks * blksize);
+        free(pMap->ranges);
+        return -1;
+    }
+
+    unsigned char* next = reserve;
+    size_t remaining_size = blocks * blksize;
+    bool success = true;
+    for (i = 0; i < range_count; ++i) {
+        size_t start, end;
+        if (fscanf(mapf, "%zu %zu\n", &start, &end) != 2) {
+            LOG(ERROR) << "failed to parse range " << i << " in block map";
+            success = false;
+            break;
+        }
+        size_t length = (end - start) * blksize;
+        if (end <= start || ((end - start) > SIZE_MAX / blksize) || length > remaining_size) {
+            LOG(ERROR) << "unexpected range in block map: " << start << " " << end;
+            success = false;
+            break;
+        }
+
+        void* addr = mmap64(next, length, PROT_READ, MAP_PRIVATE | MAP_FIXED, fd, ((off64_t)(start*blksize)));
+        if (addr == MAP_FAILED) {
+            PLOG(ERROR) << "failed to map block " << i;
+            success = false;
+            break;
+        }
+        pMap->ranges[i].addr = addr;
+        pMap->ranges[i].length = length;
+
+        next += length;
+        remaining_size -= length;
+    }
+    if (success && remaining_size != 0) {
+        LOG(ERROR) << "ranges in block map are invalid: remaining_size = " << remaining_size;
+        success = false;
+    }
+    if (!success) {
+        close(fd);
+        munmap(reserve, blocks * blksize);
+        free(pMap->ranges);
+        return -1;
+    }
+
+    close(fd);
+    pMap->addr = reserve;
+    pMap->length = size;
+
+    LOG(INFO) << "mmapped " << range_count << " ranges";
+
+    return 0;
+}
+
+int sysMapFile(const char* fn, MemMapping* pMap)
+{
+    memset(pMap, 0, sizeof(*pMap));
+
+    if (fn && fn[0] == '@') {
+        // A map of blocks
+        FILE* mapf = fopen(fn+1, "r");
+        if (mapf == NULL) {
+            PLOG(ERROR) << "Unable to open '" << (fn+1) << "'";
+            return -1;
+        }
+
+        if (sysMapBlockFile(mapf, pMap) != 0) {
+            LOG(ERROR) << "Map of '" << fn << "' failed";
+            fclose(mapf);
+            return -1;
+        }
+
+        fclose(mapf);
+    } else {
+        // This is a regular file.
+        int fd = open(fn, O_RDONLY);
+        if (fd == -1) {
+            PLOG(ERROR) << "Unable to open '" << fn << "'";
+            return -1;
+        }
+
+        if (!sysMapFD(fd, pMap)) {
+            LOG(ERROR) << "Map of '" << fn << "' failed";
+            close(fd);
+            return -1;
+        }
+
+        close(fd);
+    }
+    return 0;
+}
+
+/*
+ * Release a memory mapping.
+ */
+void sysReleaseMap(MemMapping* pMap)
+{
+    int i;
+    for (i = 0; i < pMap->range_count; ++i) {
+        if (munmap(pMap->ranges[i].addr, pMap->ranges[i].length) < 0) {
+            PLOG(ERROR) << "munmap(" << pMap->ranges[i].addr << ", " << pMap->ranges[i].length
+                        << ") failed";
+        }
+    }
+    free(pMap->ranges);
+    pMap->ranges = NULL;
+    pMap->range_count = 0;
+}
diff --git a/otautil/SysUtil.h b/otautil/SysUtil.h
new file mode 100644
index 000000000..7adff1e54
--- /dev/null
+++ b/otautil/SysUtil.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2006 The Android Open Source Project
+ *
+ * System utilities.
+ */
+#ifndef _MINZIP_SYSUTIL
+#define _MINZIP_SYSUTIL
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct MappedRange {
+    void* addr;
+    size_t length;
+} MappedRange;
+
+/*
+ * Use this to keep track of mapped segments.
+ */
+typedef struct MemMapping {
+    unsigned char* addr;           /* start of data */
+    size_t         length;         /* length of data */
+
+    int            range_count;
+    MappedRange*   ranges;
+} MemMapping;
+
+/*
+ * Map a file into a private, read-only memory segment.  If 'fn'
+ * begins with an '@' character, it is a map of blocks to be mapped,
+ * otherwise it is treated as an ordinary file.
+ *
+ * On success, "pMap" is filled in, and zero is returned.
+ */
+int sysMapFile(const char* fn, MemMapping* pMap);
+
+/*
+ * Release the pages associated with a shared memory segment.
+ *
+ * This does not free "pMap"; it just releases the memory.
+ */
+void sysReleaseMap(MemMapping* pMap);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_MINZIP_SYSUTIL*/
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