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