fcntl_test.cpp revision 48501af98f3cdf0115a469ee8d773cf74c42958d 
1/*
2 * Copyright (C) 2013 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 <gtest/gtest.h>
18
19#include <errno.h>
20#include <fcntl.h>
21
22#include "TemporaryFile.h"
23
24TEST(fcntl, fcntl_smoke) {
25  int fd = open("/proc/version", O_RDONLY);
26  ASSERT_TRUE(fd != -1);
27
28  int flags = fcntl(fd, F_GETFD);
29  ASSERT_TRUE(flags != -1);
30  ASSERT_EQ(0, flags & FD_CLOEXEC);
31
32  int rc = fcntl(fd, F_SETFD, FD_CLOEXEC);
33  ASSERT_EQ(0, rc);
34
35  flags = fcntl(fd, F_GETFD);
36  ASSERT_TRUE(flags != -1);
37  ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC);
38
39  close(fd);
40}
41
42TEST(fcntl, open_open64) {
43  int fd;
44
45  fd = open("/proc/version", O_RDONLY);
46  ASSERT_TRUE(fd != -1);
47  close(fd);
48
49  fd = open64("/proc/version", O_RDONLY);
50  ASSERT_TRUE(fd != -1);
51  close(fd);
52}
53
54TEST(fcntl, openat_openat64) {
55  int fd;
56
57  fd = openat(AT_FDCWD, "/proc/version", O_RDONLY);
58  ASSERT_TRUE(fd != -1);
59  close(fd);
60
61  fd = openat64(AT_FDCWD, "/proc/version", O_RDONLY);
62  ASSERT_TRUE(fd != -1);
63  close(fd);
64}
65
66TEST(fcntl, creat_creat64) {
67  ASSERT_EQ(-1, creat("", 0666));
68  ASSERT_EQ(ENOENT, errno);
69  ASSERT_EQ(-1, creat64("", 0666));
70  ASSERT_EQ(ENOENT, errno);
71}
72
73TEST(fcntl, fallocate_EINVAL) {
74  TemporaryFile tf;
75
76#if !defined(__GLIBC__)
77  errno = 0;
78  ASSERT_EQ(-1, fallocate(tf.fd, 0, 0, -1));
79  ASSERT_EQ(EINVAL, errno);
80
81  errno = 0;
82  ASSERT_EQ(-1, fallocate64(tf.fd, 0, 0, -1));
83  ASSERT_EQ(EINVAL, errno);
84#endif
85
86  errno = 0;
87  ASSERT_EQ(EINVAL, posix_fallocate(tf.fd, 0, -1));
88  ASSERT_EQ(0, errno);
89
90  errno = 0;
91  ASSERT_EQ(EINVAL, posix_fallocate64(tf.fd, 0, -1));
92  ASSERT_EQ(0, errno);
93}
94
95TEST(fcntl, fallocate) {
96  TemporaryFile tf;
97  struct stat sb;
98  ASSERT_EQ(0, fstat(tf.fd, &sb));
99  ASSERT_EQ(0, sb.st_size);
100
101#if !defined(__GLIBC__)
102  ASSERT_EQ(0, fallocate(tf.fd, 0, 0, 1));
103  ASSERT_EQ(0, fstat(tf.fd, &sb));
104  ASSERT_EQ(1, sb.st_size);
105
106  ASSERT_EQ(0, fallocate64(tf.fd, 0, 0, 2));
107  ASSERT_EQ(0, fstat(tf.fd, &sb));
108  ASSERT_EQ(2, sb.st_size);
109#endif
110
111  ASSERT_EQ(0, posix_fallocate(tf.fd, 0, 3));
112  ASSERT_EQ(0, fstat(tf.fd, &sb));
113  ASSERT_EQ(3, sb.st_size);
114
115  ASSERT_EQ(0, posix_fallocate64(tf.fd, 0, 4));
116  ASSERT_EQ(0, fstat(tf.fd, &sb));
117  ASSERT_EQ(4, sb.st_size);
118}
119
120TEST(fcntl, f_getlk64) {
121  int fd = open64("/proc/version", O_RDONLY);
122  ASSERT_TRUE(fd != -1);
123
124  struct flock64 check_lock;
125  check_lock.l_type = F_WRLCK;
126  check_lock.l_start = 0;
127  check_lock.l_whence = SEEK_SET;
128  check_lock.l_len = 0;
129
130  int rc = fcntl(fd, F_GETLK64, &check_lock);
131  ASSERT_EQ(0, rc);
132
133  close(fd);
134}
135