Reland: Add getprop to toolbox (91094e06) · Commits · e / os / android_system_core

property_service/libpropertyinfoparser/Android.bp

+1 −0

Original line number	Original line	Diff line number	Diff line
	cc_library_static {		cc_library_static {
	name: "libpropertyinfoparser",		name: "libpropertyinfoparser",
	host_supported: true,		host_supported: true,
			vendor_available: true,
	srcs: ["property_info_parser.cpp"],		srcs: ["property_info_parser.cpp"],

	cpp_std: "experimental",		cpp_std: "experimental",

property_service/libpropertyinfoserializer/Android.bp

+1 −0

Original line number	Original line	Diff line number	Diff line
	cc_defaults {		cc_defaults {
	name: "propertyinfoserializer_defaults",		name: "propertyinfoserializer_defaults",
	host_supported: true,		host_supported: true,
			vendor_available: true,
	cpp_std: "experimental",		cpp_std: "experimental",
	cppflags: [		cppflags: [
	"-Wall",		"-Wall",

shell_and_utilities/README.md

+8 −8

toolbox/Android.bp

+5 −0

Original line number	Original line	Diff line number	Diff line
	@@ -44,9 +44,11 @@ genrule {
	cc_defaults {		cc_defaults {
	name: "toolbox_binary_defaults",		name: "toolbox_binary_defaults",
	defaults: ["toolbox_defaults"],		defaults: ["toolbox_defaults"],
			cpp_std: "experimental",
	srcs: [		srcs: [
	"toolbox.c",		"toolbox.c",
	"getevent.c",		"getevent.c",
			"getprop.cpp",
	"newfs_msdos.c",		"newfs_msdos.c",
	],		],
	generated_headers: [		generated_headers: [
	@@ -54,12 +56,15 @@ cc_defaults {
	],		],
	whole_static_libs: ["libtoolbox_dd"],		whole_static_libs: ["libtoolbox_dd"],
	shared_libs: [		shared_libs: [
			"libbase",
	"libcutils",		"libcutils",
	],		],
			static_libs: ["libpropertyinfoparser"],

	symlinks: [		symlinks: [
	"dd",		"dd",
	"getevent",		"getevent",
			"getprop",
	"newfs_msdos",		"newfs_msdos",
	],		],
	}		}

toolbox/getprop.cpp

0 → 100644

+127 −0

Original line number	Original line	Diff line number	Diff line
			//
			// Copyright (C) 2017 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 <getopt.h>
			#include <sys/system_properties.h>

			#include <iostream>
			#include <string>
			#include <vector>

			#include <android-base/properties.h>
			#include <property_info_parser/property_info_parser.h>

			using android::base::GetProperty;
			using android::properties::PropertyInfoAreaFile;

			PropertyInfoAreaFile property_info_file;

			void PrintAllProperties(bool print_property_context) {
			std::vector<std::pair<std::string, std::string>> properties;
			__system_property_foreach(
			[](const prop_info* pi, void* cookie) {
			__system_property_read_callback(
			pi,
			[](void* cookie, const char* name, const char* value, unsigned) {
			auto properties =
			reinterpret_cast<std::vector<std::pair<std::string, std::string>>*>(cookie);
			properties->emplace_back(name, value);
			},
			cookie);
			},
			&properties);

			std::sort(properties.begin(), properties.end());

			if (print_property_context) {
			for (auto& [name, value] : properties) {
			const char* context = nullptr;
			property_info_file->GetPropertyInfo(name.c_str(), &context, nullptr);
			value = context;
			}
			}

			for (const auto& [name, value] : properties) {
			std::cout << "[" << name << "]: [" << value << "]" << std::endl;
			}
			}

			void PrintProperty(const char* name, const char* default_value, bool print_property_context) {
			if (print_property_context) {
			const char* context = nullptr;
			property_info_file->GetPropertyInfo(name, &context, nullptr);
			std::cout << context << std::endl;
			} else {
			std::cout << GetProperty(name, default_value) << std::endl;
			}
			}

			extern "C" int getprop_main(int argc, char** argv) {
			bool print_property_context = false;

			while (true) {
			static const struct option long_options[] = {
			{"help", no_argument, nullptr, 'h'},
			{nullptr, 0, nullptr, 0},
			};

			int arg = getopt_long(argc, argv, "Z", long_options, nullptr);

			if (arg == -1) {
			break;
			}

			switch (arg) {
			case 'h':
			std::cout << "usage: getprop [-Z] [NAME [DEFAULT]]\n\n"
			"Gets an Android system property, or lists them all.\n"
			"Use -Z to return the property context instead of the property value\n"
			<< std::endl;
			return 0;
			case 'Z':
			print_property_context = true;
			break;
			case '?':
			return -1;
			default:
			std::cerr << "getprop: getopt returned invalid result: " << arg << std::endl;
			return -1;
			}
			}

			if (print_property_context) {
			property_info_file.LoadDefaultPath();
			if (!property_info_file) {
			std::cerr << "Unable to load property info file" << std::endl;
			return -1;
			}
			}

			if (optind >= argc) {
			PrintAllProperties(print_property_context);
			return 0;
			}

			if (optind < argc - 2) {
			std::cerr << "getprop: Max 2 arguments (see \"getprop --help\")" << std::endl;
			return -1;
			}

			PrintProperty(argv[optind], (optind == argc - 1) ? "" : argv[optind + 1],
			print_property_context);

			return 0;
			}

Original line number	Original line	Diff line number	Diff line
	@@ -175,18 +175,18 @@ bzip2: bzcat bzip2 bunzip2

	one-true-awk: awk		one-true-awk: awk

	toolbox: getevent newfs\_msdos		toolbox: getevent getprop newfs\_msdos

	toybox: acpi base64 basename blockdev cal cat chcon chgrp chmod chown		toybox: acpi base64 basename blockdev cal cat chcon chgrp chmod chown
	chroot chrt cksum clear cmp comm cp cpio cut date df diff dirname dmesg		chroot chrt cksum clear cmp comm cp cpio cut date df diff dirname dmesg
	dos2unix du echo env expand expr fallocate false file find flock free		dos2unix du echo env expand expr fallocate false file find flock free
	getenforce getprop groups gunzip gzip head hostname hwclock id ifconfig		getenforce groups gunzip gzip head hostname hwclock id ifconfig inotifyd
	inotifyd insmod ionice iorenice kill killall ln load\_policy log logname		insmod ionice iorenice kill killall ln load\_policy log logname losetup
	losetup ls lsmod lsof lspci lsusb md5sum microcom mkdir mkfifo mknod		ls lsmod lsof lspci lsusb md5sum microcom mkdir mkfifo mknod mkswap
	mkswap mktemp modinfo modprobe more mount mountpoint mv netstat nice		mktemp modinfo modprobe more mount mountpoint mv netstat nice nl nohup
	nl nohup od paste patch pgrep pidof pkill pmap printenv printf ps pwd		od paste patch pgrep pidof pkill pmap printenv printf ps pwd readlink
	readlink realpath renice restorecon rm rmdir rmmod runcon sed sendevent		realpath renice restorecon rm rmdir rmmod runcon sed sendevent seq
	seq setenforce setprop setsid sha1sum sha224sum sha256sum sha384sum		setenforce setprop setsid sha1sum sha224sum sha256sum sha384sum
	sha512sum sleep sort split start stat stop strings swapoff swapon sync		sha512sum sleep sort split start stat stop strings swapoff swapon sync
	sysctl tac tail tar taskset tee time timeout top touch tr true truncate		sysctl tac tail tar taskset tee time timeout top touch tr true truncate
	tty ulimit umount uname uniq unix2dos uptime usleep uudecode uuencode		tty ulimit umount uname uniq unix2dos uptime usleep uudecode uuencode