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d0583c40 | 1 | /* Test for ptsname/ptsname_r. |
dff8da6b | 2 | Copyright (C) 2014-2024 Free Software Foundation, Inc. |
d0583c40 | 3 | This file is part of the GNU C Library. |
d0583c40 AJ |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
d0583c40 AJ |
18 | |
19 | #include <errno.h> | |
20 | #include <fcntl.h> | |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <unistd.h> | |
25 | ||
26 | #define DEV_TTY "/dev/tty" | |
27 | #define PTSNAME_EINVAL "./ptsname-einval" | |
28 | ||
29 | static int | |
30 | do_single_test (int fd, char *buf, size_t buflen, int expected_err) | |
31 | { | |
32 | ||
33 | int ret = ptsname_r (fd, buf, buflen); | |
34 | int err = errno; | |
35 | ||
36 | if (expected_err == 0) | |
37 | { | |
38 | if (ret != 0) | |
39 | { | |
40 | printf ("ptsname_r: expected: return = 0\n"); | |
41 | printf (" got: return = %d, errno = %d (%s)\n", | |
42 | ret, err, strerror (err)); | |
43 | return 1; | |
44 | } | |
45 | } | |
46 | else | |
47 | { | |
48 | if (ret == 0 || errno != expected_err) | |
49 | { | |
50 | printf ("ptsname_r: expected: return = %d, errno = %d (%s)\n", | |
51 | -1, expected_err, strerror (expected_err)); | |
52 | printf (" got: return = %d, errno = %d (%s)\n", | |
53 | ret, err, strerror (err)); | |
54 | return 1; | |
55 | } | |
56 | } | |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | static int | |
62 | do_test (void) | |
63 | { | |
64 | char buf[512]; | |
65 | int result = 0; | |
66 | ||
67 | /* Tests with a real PTS master. */ | |
68 | int fd = posix_openpt (O_RDWR); | |
69 | if (fd != -1) | |
70 | { | |
71 | result |= do_single_test (fd, buf, sizeof (buf), 0); | |
d0583c40 AJ |
72 | result |= do_single_test (fd, buf, 1, ERANGE); |
73 | close (fd); | |
74 | } | |
75 | else | |
76 | printf ("posix_openpt (O_RDWR) failed\nerrno %d (%s)\n", | |
77 | errno, strerror (errno)); | |
78 | ||
79 | /* Test with a terminal device which is not a PTS master. */ | |
80 | fd = open (DEV_TTY, O_RDONLY); | |
81 | if (fd != -1) | |
82 | { | |
83 | result |= do_single_test (fd, buf, sizeof (buf), ENOTTY); | |
84 | close (fd); | |
85 | } | |
86 | else | |
87 | printf ("open (\"%s\", O_RDWR) failed\nerrno %d (%s)\n", | |
88 | DEV_TTY, errno, strerror (errno)); | |
89 | ||
90 | /* Test with a file. */ | |
91 | fd = open (PTSNAME_EINVAL, O_RDWR | O_CREAT, 0600); | |
92 | if (fd != -1) | |
93 | { | |
94 | result |= do_single_test (fd, buf, sizeof (buf), ENOTTY); | |
95 | close (fd); | |
96 | unlink (PTSNAME_EINVAL); | |
97 | } | |
98 | else | |
99 | printf ("open (\"%s\", O_RDWR | OCREAT) failed\nerrno %d (%s)\n", | |
100 | PTSNAME_EINVAL, errno, strerror (errno)); | |
101 | ||
102 | return result; | |
103 | } | |
104 | ||
105 | #define TEST_FUNCTION do_test () | |
106 | #include "../test-skeleton.c" |