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5da2c626 | 1 | /* Basic sync_file_range (not specific flag is checked). |
2b778ceb | 2 | Copyright (C) 2016-2021 Free Software Foundation, Inc. |
5da2c626 AZ |
3 | This file is part of the GNU C Library. |
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/>. */ |
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18 | |
19 | /* sync_file_range is only define for LFS. */ | |
20 | #define _FILE_OFFSET_BITS 64 | |
5da2c626 | 21 | #include <errno.h> |
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22 | #include <fcntl.h> |
23 | #include <limits.h> | |
ceaa9889 | 24 | #include <stdint.h> |
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25 | #include <stdlib.h> |
26 | #include <sys/stat.h> | |
5da2c626 | 27 | |
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28 | #include <support/temp_file.h> |
29 | #include <support/check.h> | |
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30 | |
31 | #define XSTR(s) STR(S) | |
32 | #define STR(s) #s | |
33 | ||
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34 | static char *temp_filename; |
35 | static int temp_fd; | |
36 | ||
37 | static char fifoname[] = "/tmp/tst-posix_fadvise-fifo-XXXXXX"; | |
38 | static int fifofd; | |
39 | ||
40 | void | |
c23de0aa | 41 | do_prepare (int argc, char **argv) |
5da2c626 AZ |
42 | { |
43 | temp_fd = create_temp_file ("tst-file_sync_range.", &temp_filename); | |
44 | if (temp_fd == -1) | |
45 | FAIL_EXIT1 ("cannot create temporary file: %m"); | |
46 | ||
47 | if (mktemp (fifoname) == NULL) | |
48 | FAIL_EXIT1 ("cannot generate temp file name: %m"); | |
49 | add_temp_file (fifoname); | |
50 | ||
51 | if (mkfifo (fifoname, S_IWUSR | S_IRUSR) != 0) | |
52 | FAIL_EXIT1 ("cannot create fifo: %m"); | |
53 | ||
54 | fifofd = open (fifoname, O_RDONLY | O_NONBLOCK); | |
55 | if (fifofd == -1) | |
56 | FAIL_EXIT1 ("cannot open fifo: %m"); | |
57 | } | |
c23de0aa | 58 | #define PREPARE do_prepare |
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59 | |
60 | static int | |
61 | do_test (void) | |
62 | { | |
63 | int ret; | |
64 | ||
65 | /* This tests first check for some invalid usage and then check for | |
66 | a simple usage. It does not cover for all possible issue since for | |
67 | EIO/ENOMEM/ENOSPC would require to create very specific scenarios that | |
68 | are outside the current test coverage (basically correct kernel argument | |
69 | passing. */ | |
70 | ||
71 | /* Check for invalid file descriptor. */ | |
72 | if ((ret = sync_file_range (-1, 0, 0, 0)) != -1) | |
73 | FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor " | |
74 | "(returned %d, expected -1)", ret); | |
75 | if (errno != EBADF) | |
76 | FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to " | |
77 | "EBADF (%d)", errno); | |
78 | ||
79 | if ((ret = sync_file_range (fifofd, 0, 0, 0)) != -1) | |
80 | FAIL_EXIT1 ("sync_file_range did not fail on an invalid descriptor " | |
81 | "(returned %d, expected -1)", ret); | |
82 | if (errno != ESPIPE) | |
83 | FAIL_EXIT1 ("sync_file_range on an invalid descriptor did not set errno to " | |
84 | "EBADF (%d)", errno); | |
85 | ||
86 | /* Check for invalid flags (it must be | |
87 | SYNC_FILE_RANGE_{WAIT_BEFORE,WRITE,WAIT_AFTER) or a 'or' combination of | |
88 | them. */ | |
89 | if ((ret = sync_file_range (temp_fd, 0, 0, -1)) != -1) | |
90 | FAIL_EXIT1 ("sync_file_range did not failed with invalid flags " | |
91 | "(returned %d, " "expected -1)", ret); | |
92 | if (errno != EINVAL) | |
93 | FAIL_EXIT1 ("sync_file_range with invalid flag did not set errno to " | |
94 | "EINVAL (%d)", errno); | |
95 | ||
96 | /* Check for negative offset. */ | |
97 | if ((ret = sync_file_range (temp_fd, -1, 1, 0)) != -1) | |
98 | FAIL_EXIT1 ("sync_file_range did not failed with invalid offset " | |
99 | "(returned %d, expected -1)", ret); | |
100 | if (errno != EINVAL) | |
101 | FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " | |
102 | "EINVAL (%d)", errno); | |
103 | ||
104 | /* offset + nbytes must be a positive value. */ | |
105 | if ((ret = sync_file_range (temp_fd, 1024, -2048, 0)) != -1) | |
106 | FAIL_EXIT1 ("sync_file_range did not failed with invalid nbytes (returned %d, " | |
107 | "expected -1)", ret); | |
108 | if (errno != EINVAL) | |
109 | FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " | |
110 | "EINVAL (%d)", errno); | |
111 | ||
112 | /* offset + nbytes must be larger or equal than offset */ | |
113 | if ((ret = sync_file_range (temp_fd, -1024, 1024, 0)) != -1) | |
114 | FAIL_EXIT1 ("sync_file_range did not failed with invalid offset " | |
115 | "(returned %d, expected -1)", ret); | |
116 | if (errno != EINVAL) | |
117 | FAIL_EXIT1 ("sync_file_range with invalid offset did not set errno to " | |
118 | "EINVAL (%d)", errno); | |
119 | ||
120 | /* Check simple successful case. */ | |
121 | if ((ret = sync_file_range (temp_fd, 0, 1024, 0)) == -1) | |
122 | FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno); | |
123 | ||
124 | /* Finally check also a successful case with a 64-bit offset. */ | |
125 | off_t large_offset = UINT32_MAX + 2048LL; | |
126 | if ((ret = sync_file_range (temp_fd, large_offset, 1024, 0)) == -1) | |
127 | FAIL_EXIT1 ("sync_file_range failed (errno = %d)", errno); | |
128 | ||
129 | return 0; | |
130 | } | |
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131 | |
132 | #include <support/test-driver.c> |