Examples with StructStat android.system.StructStat used on opensource projects

Example 36 with StructStat

use of android.system.StructStat in project android_frameworks_base by ResurrectionRemix.

the class FileUtils method copyPermissions.

public static void copyPermissions(File from, File to) throws IOException {
    try {
        final StructStat stat = Os.stat(from.getAbsolutePath());
        Os.chmod(to.getAbsolutePath(), stat.st_mode);
        Os.chown(to.getAbsolutePath(), stat.st_uid, stat.st_gid);
    } catch (ErrnoException e) {
        throw e.rethrowAsIOException();
    }
}

Example 37 with StructStat

use of android.system.StructStat in project android_frameworks_base by ResurrectionRemix.

the class PackageManagerTests method assertDirOwnerGroupPermsIfExists.

private void assertDirOwnerGroupPermsIfExists(String reason, int uid, int gid, int perms, String path) {
    if (!new File(path).exists()) {
        return;
    }
    final StructStat stat;
    try {
        stat = Os.lstat(path);
    } catch (ErrnoException e) {
        throw new AssertionError(reason + "\n" + "Got: " + path + " does not exist");
    }
    StringBuilder sb = new StringBuilder();
    if (!S_ISDIR(stat.st_mode)) {
        sb.append("\nExpected type: ");
        sb.append(S_IFDIR);
        sb.append("\ngot type: ");
        sb.append((stat.st_mode & S_IFMT));
    }
    if (stat.st_uid != uid) {
        sb.append("\nExpected owner: ");
        sb.append(uid);
        sb.append("\nGot owner: ");
        sb.append(stat.st_uid);
    }
    if (stat.st_gid != gid) {
        sb.append("\nExpected group: ");
        sb.append(gid);
        sb.append("\nGot group: ");
        sb.append(stat.st_gid);
    }
    if ((stat.st_mode & ~S_IFMT) != perms) {
        sb.append("\nExpected permissions: ");
        sb.append(Integer.toOctalString(perms));
        sb.append("\nGot permissions: ");
        sb.append(Integer.toOctalString(stat.st_mode & ~S_IFMT));
    }
    if (sb.length() > 0) {
        throw new AssertionError(reason + sb.toString());
    }
}

Example 38 with StructStat

use of android.system.StructStat in project android_frameworks_base by ResurrectionRemix.

the class PinnerService method pinFile.

/** mlock length bytes of fileToPin in memory, starting at offset
     *  length == 0 means pin from offset to end of file
     *  maxSize == 0 means infinite
     */
private static PinnedFile pinFile(String fileToPin, long offset, long length, long maxSize) {
    FileDescriptor fd = new FileDescriptor();
    try {
        fd = Os.open(fileToPin, OsConstants.O_RDONLY | OsConstants.O_CLOEXEC | OsConstants.O_NOFOLLOW, OsConstants.O_RDONLY);
        StructStat sb = Os.fstat(fd);
        if (offset + length > sb.st_size) {
            Os.close(fd);
            Slog.e(TAG, "Failed to pin file " + fileToPin + ", request extends beyond end of file.  offset + length =  " + (offset + length) + ", file length = " + sb.st_size);
            return null;
        }
        if (length == 0) {
            length = sb.st_size - offset;
        }
        if (maxSize > 0 && length > maxSize) {
            Slog.e(TAG, "Could not pin file " + fileToPin + ", size = " + length + ", maxSize = " + maxSize);
            Os.close(fd);
            return null;
        }
        long address = Os.mmap(0, length, OsConstants.PROT_READ, OsConstants.MAP_PRIVATE, fd, offset);
        Os.close(fd);
        Os.mlock(address, length);
        return new PinnedFile(address, length, fileToPin);
    } catch (ErrnoException e) {
        Slog.e(TAG, "Could not pin file " + fileToPin + " with error " + e.getMessage());
        if (fd.valid()) {
            try {
                Os.close(fd);
            } catch (ErrnoException eClose) {
                Slog.e(TAG, "Failed to close fd, error = " + eClose.getMessage());
            }
        }
        return null;
    }
}

Example 39 with StructStat

use of android.system.StructStat in project android_frameworks_base by ResurrectionRemix.

the class LocalTransport method performBackup.

@Override
public int performBackup(PackageInfo packageInfo, ParcelFileDescriptor data) {
    if (DEBUG) {
        try {
            StructStat ss = Os.fstat(data.getFileDescriptor());
            Log.v(TAG, "performBackup() pkg=" + packageInfo.packageName + " size=" + ss.st_size);
        } catch (ErrnoException e) {
            Log.w(TAG, "Unable to stat input file in performBackup() on " + packageInfo.packageName);
        }
    }
    File packageDir = new File(mCurrentSetIncrementalDir, packageInfo.packageName);
    packageDir.mkdirs();
    // Each 'record' in the restore set is kept in its own file, named by
    // the record key.  Wind through the data file, extracting individual
    // record operations and building a set of all the updates to apply
    // in this update.
    BackupDataInput changeSet = new BackupDataInput(data.getFileDescriptor());
    try {
        int bufSize = 512;
        byte[] buf = new byte[bufSize];
        while (changeSet.readNextHeader()) {
            String key = changeSet.getKey();
            String base64Key = new String(Base64.encode(key.getBytes()));
            File entityFile = new File(packageDir, base64Key);
            int dataSize = changeSet.getDataSize();
            if (DEBUG)
                Log.v(TAG, "Got change set key=" + key + " size=" + dataSize + " key64=" + base64Key);
            if (dataSize >= 0) {
                if (entityFile.exists()) {
                    entityFile.delete();
                }
                FileOutputStream entity = new FileOutputStream(entityFile);
                if (dataSize > bufSize) {
                    bufSize = dataSize;
                    buf = new byte[bufSize];
                }
                changeSet.readEntityData(buf, 0, dataSize);
                if (DEBUG) {
                    try {
                        long cur = Os.lseek(data.getFileDescriptor(), 0, SEEK_CUR);
                        Log.v(TAG, "  read entity data; new pos=" + cur);
                    } catch (ErrnoException e) {
                        Log.w(TAG, "Unable to stat input file in performBackup() on " + packageInfo.packageName);
                    }
                }
                try {
                    entity.write(buf, 0, dataSize);
                } catch (IOException e) {
                    Log.e(TAG, "Unable to update key file " + entityFile.getAbsolutePath());
                    return TRANSPORT_ERROR;
                } finally {
                    entity.close();
                }
            } else {
                entityFile.delete();
            }
        }
        return TRANSPORT_OK;
    } catch (IOException e) {
        // oops, something went wrong.  abort the operation and return error.
        Log.v(TAG, "Exception reading backup input:", e);
        return TRANSPORT_ERROR;
    }
}

Example 40 with StructStat

use of android.system.StructStat in project android_frameworks_base by DirtyUnicorns.

the class PackageManagerTests method assertDirOwnerGroupPermsIfExists.

private void assertDirOwnerGroupPermsIfExists(String reason, int uid, int gid, int perms, String path) {
    if (!new File(path).exists()) {
        return;
    }
    final StructStat stat;
    try {
        stat = Os.lstat(path);
    } catch (ErrnoException e) {
        throw new AssertionError(reason + "\n" + "Got: " + path + " does not exist");
    }
    StringBuilder sb = new StringBuilder();
    if (!S_ISDIR(stat.st_mode)) {
        sb.append("\nExpected type: ");
        sb.append(S_IFDIR);
        sb.append("\ngot type: ");
        sb.append((stat.st_mode & S_IFMT));
    }
    if (stat.st_uid != uid) {
        sb.append("\nExpected owner: ");
        sb.append(uid);
        sb.append("\nGot owner: ");
        sb.append(stat.st_uid);
    }
    if (stat.st_gid != gid) {
        sb.append("\nExpected group: ");
        sb.append(gid);
        sb.append("\nGot group: ");
        sb.append(stat.st_gid);
    }
    if ((stat.st_mode & ~S_IFMT) != perms) {
        sb.append("\nExpected permissions: ");
        sb.append(Integer.toOctalString(perms));
        sb.append("\nGot permissions: ");
        sb.append(Integer.toOctalString(stat.st_mode & ~S_IFMT));
    }
    if (sb.length() > 0) {
        throw new AssertionError(reason + sb.toString());
    }
}