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1 /*
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 
17 #include "adb_utils.h"
18 
19 #ifdef _WIN32
20 #include <windows.h>
21 #include <userenv.h>
22 #endif
23 
24 #include <string>
25 
26 #include <gtest/gtest.h>
27 
28 #include <stdlib.h>
29 #include <string.h>
30 
31 #include "sysdeps.h"
32 
33 #include <android-base/macros.h>
34 #include <android-base/test_utils.h>
35 
36 #ifdef _WIN32
subdir(const char * parent,const char * child)37 static std::string subdir(const char* parent, const char* child) {
38   std::string str(parent);
39   str += OS_PATH_SEPARATOR;
40   str += child;
41   return str;
42 }
43 #endif
44 
TEST(adb_utils,directory_exists)45 TEST(adb_utils, directory_exists) {
46 #ifdef _WIN32
47   char profiles_dir[MAX_PATH];
48   DWORD cch = arraysize(profiles_dir);
49 
50   // On typical Windows 7, returns C:\Users
51   ASSERT_TRUE(GetProfilesDirectoryA(profiles_dir, &cch));
52 
53   ASSERT_TRUE(directory_exists(profiles_dir));
54 
55   ASSERT_FALSE(directory_exists(subdir(profiles_dir, "does-not-exist")));
56 #else
57   ASSERT_TRUE(directory_exists("/proc"));
58   ASSERT_FALSE(directory_exists("/proc/does-not-exist"));
59 #endif
60 }
61 
62 #if defined(_WIN32)
TEST(adb_utils,directory_exists_win32_symlink_junction)63 TEST(adb_utils, directory_exists_win32_symlink_junction) {
64   char profiles_dir[MAX_PATH];
65   DWORD cch = arraysize(profiles_dir);
66 
67   // On typical Windows 7, returns C:\Users
68   ASSERT_TRUE(GetProfilesDirectoryA(profiles_dir, &cch));
69 
70   // On modern (English?) Windows, this is a directory symbolic link to
71   // C:\ProgramData. Symbolic links are rare on Windows and the user requires
72   // a special permission (by default granted to Administrative users) to
73   // create symbolic links.
74   EXPECT_FALSE(directory_exists(subdir(profiles_dir, "All Users")));
75 
76   // On modern (English?) Windows, this is a directory junction to
77   // C:\Users\Default. Junctions are used throughout user profile directories
78   // for backwards compatibility and they don't require any special permissions
79   // to create.
80   EXPECT_FALSE(directory_exists(subdir(profiles_dir, "Default User")));
81 }
82 #endif
83 
TEST(adb_utils,escape_arg)84 TEST(adb_utils, escape_arg) {
85   ASSERT_EQ(R"('')", escape_arg(""));
86 
87   ASSERT_EQ(R"('abc')", escape_arg("abc"));
88 
89   ASSERT_EQ(R"(' abc')", escape_arg(" abc"));
90   ASSERT_EQ(R"(''\''abc')", escape_arg("'abc"));
91   ASSERT_EQ(R"('"abc')", escape_arg("\"abc"));
92   ASSERT_EQ(R"('\abc')", escape_arg("\\abc"));
93   ASSERT_EQ(R"('(abc')", escape_arg("(abc"));
94   ASSERT_EQ(R"(')abc')", escape_arg(")abc"));
95 
96   ASSERT_EQ(R"('abc abc')", escape_arg("abc abc"));
97   ASSERT_EQ(R"('abc'\''abc')", escape_arg("abc'abc"));
98   ASSERT_EQ(R"('abc"abc')", escape_arg("abc\"abc"));
99   ASSERT_EQ(R"('abc\abc')", escape_arg("abc\\abc"));
100   ASSERT_EQ(R"('abc(abc')", escape_arg("abc(abc"));
101   ASSERT_EQ(R"('abc)abc')", escape_arg("abc)abc"));
102 
103   ASSERT_EQ(R"('abc ')", escape_arg("abc "));
104   ASSERT_EQ(R"('abc'\''')", escape_arg("abc'"));
105   ASSERT_EQ(R"('abc"')", escape_arg("abc\""));
106   ASSERT_EQ(R"('abc\')", escape_arg("abc\\"));
107   ASSERT_EQ(R"('abc(')", escape_arg("abc("));
108   ASSERT_EQ(R"('abc)')", escape_arg("abc)"));
109 }
110 
111 void test_mkdirs(const std::string& basepath) {
112   // Test creating a directory hierarchy.
113   ASSERT_TRUE(mkdirs(basepath));
114   // Test finding an existing directory hierarchy.
115   ASSERT_TRUE(mkdirs(basepath));
116   // Test mkdirs on an existing hierarchy with a trailing slash.
117   ASSERT_TRUE(mkdirs(basepath + '/'));
118 #if defined(_WIN32)
119   ASSERT_TRUE(mkdirs(basepath + '\\'));
120 #endif
121 
122   const std::string filepath = basepath + "/file";
123   // Verify that the hierarchy was created by trying to create a file in it.
124   ASSERT_NE(-1, adb_creat(filepath.c_str(), 0600));
125   // If a file exists where we want a directory, the operation should fail.
126   ASSERT_FALSE(mkdirs(filepath));
127 }
128 
129 TEST(adb_utils, mkdirs) {
130   TemporaryDir td;
131 
132   // Absolute paths.
133   test_mkdirs(std::string(td.path) + "/dir/subdir");
134 
135   // Relative paths.
136   ASSERT_EQ(0, chdir(td.path)) << strerror(errno);
137   test_mkdirs(std::string("relative/subrel"));
138 }
139 
140 #if !defined(_WIN32)
141 TEST(adb_utils, set_file_block_mode) {
142   int fd = adb_open("/dev/null", O_RDWR | O_APPEND);
143   ASSERT_GE(fd, 0);
144   int flags = fcntl(fd, F_GETFL, 0);
145   ASSERT_EQ(O_RDWR | O_APPEND, (flags & (O_RDWR | O_APPEND)));
146   ASSERT_TRUE(set_file_block_mode(fd, false));
147   int new_flags = fcntl(fd, F_GETFL, 0);
148   ASSERT_EQ(flags | O_NONBLOCK, new_flags);
149   ASSERT_TRUE(set_file_block_mode(fd, true));
150   new_flags = fcntl(fd, F_GETFL, 0);
151   ASSERT_EQ(flags, new_flags);
152   ASSERT_EQ(0, adb_close(fd));
153 }
154 #endif
155 
156 TEST(adb_utils, test_forward_targets_are_valid) {
157     std::string error;
158 
159     // Source port can be >= 0.
160     EXPECT_FALSE(forward_targets_are_valid("tcp:-1", "tcp:9000", &error));
161     EXPECT_TRUE(forward_targets_are_valid("tcp:0", "tcp:9000", &error));
162     EXPECT_TRUE(forward_targets_are_valid("tcp:8000", "tcp:9000", &error));
163 
164     // Destination port must be >0.
165     EXPECT_FALSE(forward_targets_are_valid("tcp:8000", "tcp:-1", &error));
166     EXPECT_FALSE(forward_targets_are_valid("tcp:8000", "tcp:0", &error));
167 
168     // Port must be a number.
169     EXPECT_FALSE(forward_targets_are_valid("tcp:", "tcp:9000", &error));
170     EXPECT_FALSE(forward_targets_are_valid("tcp:a", "tcp:9000", &error));
171     EXPECT_FALSE(forward_targets_are_valid("tcp:22x", "tcp:9000", &error));
172     EXPECT_FALSE(forward_targets_are_valid("tcp:8000", "tcp:", &error));
173     EXPECT_FALSE(forward_targets_are_valid("tcp:8000", "tcp:a", &error));
174     EXPECT_FALSE(forward_targets_are_valid("tcp:8000", "tcp:22x", &error));
175 }
176