Process: Fix communication with zygote. (1bd43c16) · Commits · e / os / android_frameworks_base

core/java/android/os/Process.java

+15 −6

Original line number	Original line	Diff line number	Diff line
	@@ -537,6 +537,15 @@ public class Process {
	ZygoteState zygoteState, ArrayList<String> args)		ZygoteState zygoteState, ArrayList<String> args)
	throws ZygoteStartFailedEx {		throws ZygoteStartFailedEx {
	try {		try {
			// Throw early if any of the arguments are malformed. This means we can
			// avoid writing a partial response to the zygote.
			int sz = args.size();
			for (int i = 0; i < sz; i++) {
			if (args.get(i).indexOf('\n') >= 0) {
			throw new ZygoteStartFailedEx("embedded newlines not allowed");
			}
			}

	/**		/**
	* See com.android.internal.os.ZygoteInit.readArgumentList()		* See com.android.internal.os.ZygoteInit.readArgumentList()
	* Presently the wire format to the zygote process is:		* Presently the wire format to the zygote process is:
	@@ -553,13 +562,8 @@ public class Process {
	writer.write(Integer.toString(args.size()));		writer.write(Integer.toString(args.size()));
	writer.newLine();		writer.newLine();

	int sz = args.size();
	for (int i = 0; i < sz; i++) {		for (int i = 0; i < sz; i++) {
	String arg = args.get(i);		String arg = args.get(i);
	if (arg.indexOf('\n') >= 0) {
	throw new ZygoteStartFailedEx(
	"embedded newlines not allowed");
	}
	writer.write(arg);		writer.write(arg);
	writer.newLine();		writer.newLine();
	}		}
	@@ -568,11 +572,16 @@ public class Process {

	// Should there be a timeout on this?		// Should there be a timeout on this?
	ProcessStartResult result = new ProcessStartResult();		ProcessStartResult result = new ProcessStartResult();

			// Always read the entire result from the input stream to avoid leaving
			// bytes in the stream for future process starts to accidentally stumble
			// upon.
	result.pid = inputStream.readInt();		result.pid = inputStream.readInt();
			result.usingWrapper = inputStream.readBoolean();

	if (result.pid < 0) {		if (result.pid < 0) {
	throw new ZygoteStartFailedEx("fork() failed");		throw new ZygoteStartFailedEx("fork() failed");
	}		}
	result.usingWrapper = inputStream.readBoolean();
	return result;		return result;
	} catch (IOException ex) {		} catch (IOException ex) {
	zygoteState.close();		zygoteState.close();