blob: 15c6abdf195aa84b14b8500a653dc012c28a40d3 [file] [log] [blame]
Spencer Low142ec752015-05-06 16:13:42 -07001/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080017#include "sysdeps.h"
Spencer Low142ec752015-05-06 16:13:42 -070018
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080019#include <stdio.h>
20
Elliott Hughes4f713192015-12-04 22:00:26 -080021#include <android-base/file.h>
22#include <android-base/logging.h>
23#include <android-base/strings.h>
Elliott Hughes381cfa92015-07-23 17:12:58 -070024#include <cutils/sockets.h>
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080025
Spencer Low142ec752015-05-06 16:13:42 -070026#include "adb.h"
27#include "adb_client.h"
Spencer Low351ecd12015-10-14 17:32:44 -070028#include "adb_io.h"
Spencer Low142ec752015-05-06 16:13:42 -070029
30// Return the console port of the currently connected emulator (if any) or -1 if
31// there is no emulator, and -2 if there is more than one.
32static int adb_get_emulator_console_port(const char* serial) {
33 if (serial) {
34 // The user specified a serial number; is it an emulator?
35 int port;
36 return (sscanf(serial, "emulator-%d", &port) == 1) ? port : -1;
37 }
38
39 // No specific device was given, so get the list of connected devices and
40 // search for emulators. If there's one, we'll take it. If there are more
41 // than one, that's an error.
42 std::string devices;
43 std::string error;
44 if (!adb_query("host:devices", &devices, &error)) {
45 fprintf(stderr, "error: no emulator connected: %s\n", error.c_str());
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080046 return -1;
47 }
Spencer Low142ec752015-05-06 16:13:42 -070048
49 int port;
50 size_t emulator_count = 0;
51 for (const auto& device : android::base::Split(devices, "\n")) {
52 if (sscanf(device.c_str(), "emulator-%d", &port) == 1) {
53 if (++emulator_count > 1) {
54 fprintf(
55 stderr, "error: more than one emulator detected; use -s\n");
56 return -1;
57 }
58 }
59 }
60
61 if (emulator_count == 0) {
62 fprintf(stderr, "error: no emulator detected\n");
63 return -1;
64 }
65
66 return port;
67}
68
69static int connect_to_console(const char* serial) {
70 int port = adb_get_emulator_console_port(serial);
71 if (port == -1) {
72 return -1;
73 }
74
Spencer Low5200c662015-07-30 23:07:55 -070075 std::string error;
76 int fd = network_loopback_client(port, SOCK_STREAM, &error);
Spencer Low142ec752015-05-06 16:13:42 -070077 if (fd == -1) {
Spencer Low5200c662015-07-30 23:07:55 -070078 fprintf(stderr, "error: could not connect to TCP port %d: %s\n", port,
79 error.c_str());
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080080 return -1;
81 }
Spencer Low142ec752015-05-06 16:13:42 -070082 return fd;
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080083}
84
Spencer Low142ec752015-05-06 16:13:42 -070085int adb_send_emulator_command(int argc, const char** argv, const char* serial) {
86 int fd = connect_to_console(serial);
87 if (fd == -1) {
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080088 return 1;
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080089 }
Spencer Low142ec752015-05-06 16:13:42 -070090
Spencer Low351ecd12015-10-14 17:32:44 -070091 std::string commands;
92
Spencer Low142ec752015-05-06 16:13:42 -070093 for (int i = 1; i < argc; i++) {
Spencer Low351ecd12015-10-14 17:32:44 -070094 commands.append(argv[i]);
95 commands.append(i == argc - 1 ? "\n" : " ");
Spencer Low142ec752015-05-06 16:13:42 -070096 }
97
Spencer Low351ecd12015-10-14 17:32:44 -070098 commands.append("quit\n");
99
100 if (!WriteFdExactly(fd, commands)) {
101 fprintf(stderr, "error: cannot write to emulator: %s\n",
102 strerror(errno));
103 adb_close(fd);
104 return 1;
Spencer Low142ec752015-05-06 16:13:42 -0700105 }
106
107 // Drain output that the emulator console has sent us to prevent a problem
108 // on Windows where if adb closes the socket without reading all the data,
109 // the emulator's next call to recv() will have an ECONNABORTED error,
110 // preventing the emulator from reading the command that adb has sent.
111 // https://code.google.com/p/android/issues/detail?id=21021
112 int result;
113 do {
114 char buf[BUFSIZ];
115 result = adb_read(fd, buf, sizeof(buf));
Spencer Low351ecd12015-10-14 17:32:44 -0700116 // Keep reading until zero bytes (orderly/graceful shutdown) or an
117 // error. If 'adb emu kill' is executed, the emulator calls exit() with
118 // the socket open (and shutdown(SD_SEND) was not called), which causes
119 // Windows to send a TCP RST segment which causes adb to get ECONNRESET.
120 // Any other emu command is followed by the quit command that we
121 // appended above, and that causes the emulator to close the socket
122 // which should cause zero bytes (orderly/graceful shutdown) to be
123 // returned.
Spencer Low142ec752015-05-06 16:13:42 -0700124 } while (result > 0);
125
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -0800126 adb_close(fd);
127
128 return 0;
129}