1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2002
4 * Copyright (c) 2019 FUJITSU LIMITED. All rights reserved.
5 *
6 * Jay Huie
7 * Robbie Williamson
8 */
9 /*
10 * Test Description:
11 * Verify that,
12 * 1)ftruncate() fails with EINVAL if the file is a socket.
13 * 2)ftruncate() fails with EINVAL if the file descriptor opens with O_RDONLY.
14 * 3)ftruncate() fails with EINVAL if the length is negative.
15 * 4)ftruncate() fails with EBADF if the file descriptor is invalid.
16 */
17
18 #include <sys/types.h>
19 #include <sys/stat.h>
20 #include <fcntl.h>
21 #include <unistd.h>
22 #include <errno.h>
23 #include <string.h>
24 #include <sys/socket.h>
25
26 #include "tst_test.h"
27
28 #define TESTFILE1 "testfile1"
29 #define TESTFILE2 "testfile2"
30
31 static int sock_fd, read_fd, fd;
32 static int bad_fd = -1;
33
34 static struct tcase {
35 int *fd;
36 off_t length;
37 int exp_errno;
38 } tcases[] = {
39 {&sock_fd, 4, EINVAL},
40 {&read_fd, 4, EINVAL},
41 {&fd, -1, EINVAL},
42 {&bad_fd, 4, EBADF},
43 };
44
verify_ftruncate(unsigned int n)45 static void verify_ftruncate(unsigned int n)
46 {
47 struct tcase *tc = &tcases[n];
48
49 TEST(ftruncate(*tc->fd, tc->length));
50 if (TST_RET != -1) {
51 tst_res(TFAIL, "ftruncate() succeeded unexpectedly and got %ld",
52 TST_RET);
53 return;
54 }
55
56 if (TST_ERR == tc->exp_errno) {
57 tst_res(TPASS | TTERRNO, "ftruncate() failed expectedly");
58 } else {
59 tst_res(TFAIL | TTERRNO,
60 "ftruncate() failed unexpectedly, got %s, expected",
61 tst_strerrno(tc->exp_errno));
62 }
63 }
64
setup(void)65 static void setup(void)
66 {
67 sock_fd = SAFE_SOCKET(PF_INET, SOCK_STREAM, 0);
68
69 read_fd = SAFE_OPEN(TESTFILE1, O_RDONLY | O_CREAT, 0644);
70
71 fd = SAFE_OPEN(TESTFILE2, O_RDWR | O_CREAT, 0644);
72 }
73
cleanup(void)74 static void cleanup(void)
75 {
76 if (sock_fd > 0)
77 SAFE_CLOSE(sock_fd);
78
79 if (read_fd > 0)
80 SAFE_CLOSE(read_fd);
81
82 if (fd > 0)
83 SAFE_CLOSE(fd);
84 }
85
86 static struct tst_test test = {
87 .tcnt = ARRAY_SIZE(tcases),
88 .test = verify_ftruncate,
89 .setup = setup,
90 .cleanup = cleanup,
91 .needs_tmpdir = 1,
92 };
93