The Tor Browser: comparison toolkit/crashreporter/google-breakpad/src/client/mac/Framework/OnDemandServer.mm

--1:000000000000
+:e9f07abdc424
+// Copyright (c) 2007, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#import "OnDemandServer.h"
+#import "Breakpad.h"
+#include "common/mac/bootstrap_compat.h"
+#if DEBUG
+#define PRINT_MACH_RESULT(result_, message_) \
+printf(message_"%s (%d)\n", mach_error_string(result_), result_ );
+#if defined(MAC_OS_X_VERSION_10_5) && \
+MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
+#define PRINT_BOOTSTRAP_RESULT(result_, message_) \
+printf(message_"%s (%d)\n", bootstrap_strerror(result_), result_ );
+#else
+#define PRINT_BOOTSTRAP_RESULT(result_, message_) \
+PRINT_MACH_RESULT(result_, message_)
+#endif
+#else
+#define PRINT_MACH_RESULT(result_, message_)
+#define PRINT_BOOTSTRAP_RESULT(result_, message_)
+#endif
+//==============================================================================
+OnDemandServer *OnDemandServer::Create(const char *server_command,
+const char *service_name,
+bool unregister_on_cleanup,
+kern_return_t *out_result) {
+OnDemandServer *server = new OnDemandServer();
+if (!server) return NULL;
+kern_return_t result = server->Initialize(server_command,
+service_name,
+unregister_on_cleanup);
+if (out_result) {
+*out_result = result;
+}
+if (result == KERN_SUCCESS) {
+return server;
+}
+delete server;
+return NULL;
+};
+//==============================================================================
+kern_return_t OnDemandServer::Initialize(const char *server_command,
+const char *service_name,
+bool unregister_on_cleanup) {
+unregister_on_cleanup_ = unregister_on_cleanup;
+mach_port_t self_task = mach_task_self();
+mach_port_t bootstrap_port;
+kern_return_t kr = task_get_bootstrap_port(self_task, &bootstrap_port);
+if (kr != KERN_SUCCESS) {
+PRINT_MACH_RESULT(kr, "task_get_bootstrap_port(): ");
+return kr;
+}
+mach_port_t bootstrap_subset_port;
+kr = bootstrap_subset(bootstrap_port, self_task, &bootstrap_subset_port);
+if (kr != BOOTSTRAP_SUCCESS) {
+PRINT_BOOTSTRAP_RESULT(kr, "bootstrap_subset(): ");
+return kr;
+}
+// The inspector will be invoked with its bootstrap port set to the subset,
+// but the sender will need access to the original bootstrap port. Although
+// the original port is the subset's parent, bootstrap_parent can't be used
+// because it requires extra privileges. Stash the original bootstrap port
+// in the subset by registering it under a known name. The inspector will
+// recover this port and set it as its own bootstrap port in Inspector.mm
+// Inspector::ResetBootstrapPort.
+kr = breakpad::BootstrapRegister(
+bootstrap_subset_port,
+const_cast<char*>(BREAKPAD_BOOTSTRAP_PARENT_PORT),
+bootstrap_port);
+if (kr != BOOTSTRAP_SUCCESS) {
+PRINT_BOOTSTRAP_RESULT(kr, "bootstrap_register(): ");
+return kr;
+}
+kr = bootstrap_create_server(bootstrap_subset_port,
+const_cast<char*>(server_command),
+geteuid(),       // server uid
+true,
+&server_port_);
+if (kr != BOOTSTRAP_SUCCESS) {
+PRINT_BOOTSTRAP_RESULT(kr, "bootstrap_create_server(): ");
+return kr;
+}
+strlcpy(service_name_, service_name, sizeof(service_name_));
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
+// Create a service called service_name, and return send rights to
+// that port in service_port_.
+kr = bootstrap_create_service(server_port_,
+const_cast<char*>(service_name),
+&service_port_);
+#pragma clang diagnostic pop
+if (kr != BOOTSTRAP_SUCCESS) {
+PRINT_BOOTSTRAP_RESULT(kr, "bootstrap_create_service(): ");
+// perhaps the service has already been created - try to look it up
+kr = bootstrap_look_up(bootstrap_port, (char*)service_name, &service_port_);
+if (kr != BOOTSTRAP_SUCCESS) {
+PRINT_BOOTSTRAP_RESULT(kr, "bootstrap_look_up(): ");
+Unregister();  // clean up server port
+return kr;
+}
+}
+return KERN_SUCCESS;
+}
+//==============================================================================
+OnDemandServer::~OnDemandServer() {
+if (unregister_on_cleanup_) {
+Unregister();
+}
+}
+//==============================================================================
+void OnDemandServer::LaunchOnDemand() {
+// We need to do this, since the launched server is another process
+// and holding on to this port delays launching until the current process
+// exits!
+mach_port_deallocate(mach_task_self(), server_port_);
+server_port_ = MACH_PORT_DEAD;
+// Now, the service is still registered and all we need to do is send
+// a mach message to the service port in order to launch the server.
+}
+//==============================================================================
+void OnDemandServer::Unregister() {
+if (service_port_ != MACH_PORT_NULL) {
+mach_port_deallocate(mach_task_self(), service_port_);
+service_port_ = MACH_PORT_NULL;
+}
+if (server_port_ != MACH_PORT_NULL) {
+// unregister the service
+kern_return_t kr = breakpad::BootstrapRegister(server_port_,
+service_name_,
+MACH_PORT_NULL);
+if (kr != KERN_SUCCESS) {
+PRINT_MACH_RESULT(kr, "Breakpad UNREGISTER : bootstrap_register() : ");
+}
+mach_port_deallocate(mach_task_self(), server_port_);
+server_port_ = MACH_PORT_NULL;
+}
+}

The Tor Browser / file comparison

comparison: toolkit/crashreporter/google-breakpad/src/client/mac/Framework/OnDemandServer.mm

toolkit/crashreporter/google-breakpad/src/client/mac/Framework/OnDemandServer.mm