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d0583c40 | 1 | /* Test for ptsname/ptsname_r. |
04277e02 | 2 | Copyright (C) 2014-2019 Free Software Foundation, Inc. |
d0583c40 AJ |
3 | This file is part of the GNU C Library. |
4 | Contributed by Aurelien Jarno <aurelien@aurel32.net>, 2014. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library; if not, see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <errno.h> | |
21 | #include <fcntl.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | #define DEV_TTY "/dev/tty" | |
28 | #define PTSNAME_EINVAL "./ptsname-einval" | |
29 | ||
30 | static int | |
31 | do_single_test (int fd, char *buf, size_t buflen, int expected_err) | |
32 | { | |
33 | ||
34 | int ret = ptsname_r (fd, buf, buflen); | |
35 | int err = errno; | |
36 | ||
37 | if (expected_err == 0) | |
38 | { | |
39 | if (ret != 0) | |
40 | { | |
41 | printf ("ptsname_r: expected: return = 0\n"); | |
42 | printf (" got: return = %d, errno = %d (%s)\n", | |
43 | ret, err, strerror (err)); | |
44 | return 1; | |
45 | } | |
46 | } | |
47 | else | |
48 | { | |
49 | if (ret == 0 || errno != expected_err) | |
50 | { | |
51 | printf ("ptsname_r: expected: return = %d, errno = %d (%s)\n", | |
52 | -1, expected_err, strerror (expected_err)); | |
53 | printf (" got: return = %d, errno = %d (%s)\n", | |
54 | ret, err, strerror (err)); | |
55 | return 1; | |
56 | } | |
57 | } | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
62 | static int | |
63 | do_test (void) | |
64 | { | |
65 | char buf[512]; | |
66 | int result = 0; | |
67 | ||
68 | /* Tests with a real PTS master. */ | |
69 | int fd = posix_openpt (O_RDWR); | |
70 | if (fd != -1) | |
71 | { | |
72 | result |= do_single_test (fd, buf, sizeof (buf), 0); | |
d0583c40 AJ |
73 | result |= do_single_test (fd, buf, 1, ERANGE); |
74 | close (fd); | |
75 | } | |
76 | else | |
77 | printf ("posix_openpt (O_RDWR) failed\nerrno %d (%s)\n", | |
78 | errno, strerror (errno)); | |
79 | ||
80 | /* Test with a terminal device which is not a PTS master. */ | |
81 | fd = open (DEV_TTY, O_RDONLY); | |
82 | if (fd != -1) | |
83 | { | |
84 | result |= do_single_test (fd, buf, sizeof (buf), ENOTTY); | |
85 | close (fd); | |
86 | } | |
87 | else | |
88 | printf ("open (\"%s\", O_RDWR) failed\nerrno %d (%s)\n", | |
89 | DEV_TTY, errno, strerror (errno)); | |
90 | ||
91 | /* Test with a file. */ | |
92 | fd = open (PTSNAME_EINVAL, O_RDWR | O_CREAT, 0600); | |
93 | if (fd != -1) | |
94 | { | |
95 | result |= do_single_test (fd, buf, sizeof (buf), ENOTTY); | |
96 | close (fd); | |
97 | unlink (PTSNAME_EINVAL); | |
98 | } | |
99 | else | |
100 | printf ("open (\"%s\", O_RDWR | OCREAT) failed\nerrno %d (%s)\n", | |
101 | PTSNAME_EINVAL, errno, strerror (errno)); | |
102 | ||
103 | return result; | |
104 | } | |
105 | ||
106 | #define TEST_FUNCTION do_test () | |
107 | #include "../test-skeleton.c" |