[a7c39d3] | 1 | /* |
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| 2 | * COPYRIGHT (c) 1989-2011. |
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| 3 | * On-Line Applications Research Corporation (OAR). |
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| 4 | * |
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| 5 | * The license and distribution terms for this file may be |
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| 6 | * found in the file LICENSE in this distribution or at |
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| 7 | * http://www.rtems.com/license/LICENSE. |
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| 8 | * |
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| 9 | * $Id Exp $ |
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| 10 | */ |
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| 11 | #include <sys/stat.h> |
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| 12 | #include <string.h> |
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| 13 | #include <stdlib.h> |
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| 14 | #include <fcntl.h> |
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| 15 | #include <stdio.h> |
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| 16 | #include <stdlib.h> |
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| 17 | #include <stdint.h> |
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| 18 | #include <memory.h> |
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| 19 | #include <unistd.h> |
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| 20 | |
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| 21 | #include "fstest.h" |
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| 22 | |
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| 23 | const char *databuf = |
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[6fed43e] | 24 | "Happy days are here again. Happy days are here again.1Happy " |
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| 25 | "days are here again.2Happy days are here again.3Happy days are here again." |
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| 26 | "4Happy days are here again.5Happy days are here again.6Happy days are here " |
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| 27 | "again.7Happy days are here again."; |
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[a7c39d3] | 28 | |
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[6fed43e] | 29 | void |
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| 30 | read_write_test (void) |
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[a7c39d3] | 31 | { |
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| 32 | |
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| 33 | int fd; |
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| 34 | int status; |
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| 35 | char *name01 = "name01"; |
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| 36 | char *name02 = "name02"; |
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| 37 | struct stat statbuf; |
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| 38 | char *readbuf; |
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| 39 | size_t len = strlen (databuf); |
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| 40 | off_t pos = 0; |
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| 41 | |
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| 42 | int n; |
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| 43 | mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO; |
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| 44 | |
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| 45 | |
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[6fed43e] | 46 | const char *wd = __func__; |
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[a7c39d3] | 47 | |
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| 48 | /* |
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| 49 | * Create a new directory and change the current directory to this |
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| 50 | */ |
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[6fed43e] | 51 | status = mkdir (wd, mode); |
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| 52 | rtems_test_assert (status == 0); |
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| 53 | status = chdir (wd); |
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| 54 | rtems_test_assert (status == 0); |
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[a7c39d3] | 55 | /* |
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| 56 | * Create an empty file |
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| 57 | */ |
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| 58 | fd = open (name01, O_CREAT | O_WRONLY, mode); |
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| 59 | status = close (fd); |
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| 60 | rtems_test_assert (status == 0); |
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| 61 | /* |
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| 62 | * Verify the empty file |
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| 63 | */ |
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| 64 | status = stat (name01, &statbuf); |
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| 65 | rtems_test_assert (status == 0); |
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| 66 | |
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| 67 | rtems_test_assert (S_ISREG (statbuf.st_mode)); |
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| 68 | rtems_test_assert (statbuf.st_size == 0); |
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| 69 | |
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| 70 | /* |
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| 71 | * Write data to the empty file |
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| 72 | */ |
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| 73 | fd = open (name01, O_WRONLY); |
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| 74 | rtems_test_assert (fd != -1); |
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| 75 | |
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| 76 | n = write (fd, databuf, len); |
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| 77 | rtems_test_assert (n == len); |
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| 78 | status = close (fd); |
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| 79 | rtems_test_assert (status == 0); |
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| 80 | |
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| 81 | status = stat (name01, &statbuf); |
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| 82 | rtems_test_assert (status == 0); |
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| 83 | rtems_test_assert (S_ISREG (statbuf.st_mode)); |
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| 84 | rtems_test_assert (statbuf.st_size == len); |
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| 85 | |
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| 86 | /* |
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| 87 | * Read the data from the file |
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| 88 | */ |
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| 89 | readbuf = (char *) malloc (len + 1); |
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| 90 | rtems_test_assert (readbuf); |
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| 91 | |
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| 92 | fd = open (name01, O_RDONLY); |
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| 93 | rtems_test_assert (fd != -1); |
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| 94 | n = read (fd, readbuf, len); |
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| 95 | rtems_test_assert (n == len); |
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| 96 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 97 | status = close (fd); |
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| 98 | rtems_test_assert (status == 0); |
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| 99 | |
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| 100 | /* |
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| 101 | * Open the file using O_APPEND and write the data |
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| 102 | */ |
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| 103 | memset (readbuf, 0, len + 1); |
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| 104 | fd = open (name01, O_WRONLY | O_APPEND); |
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| 105 | n = write (fd, databuf, len); |
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| 106 | rtems_test_assert (n == len); |
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| 107 | pos = lseek (fd, 0, SEEK_CUR); |
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| 108 | rtems_test_assert (pos == 2 * len); |
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| 109 | status = close (fd); |
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| 110 | rtems_test_assert (status == 0); |
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| 111 | |
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| 112 | /* |
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| 113 | * Read the data and verify it |
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| 114 | */ |
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| 115 | fd = open (name01, O_RDONLY); |
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| 116 | rtems_test_assert (fd != -1); |
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| 117 | n = read (fd, readbuf, len); |
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| 118 | rtems_test_assert (n == len); |
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| 119 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 120 | |
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| 121 | n = read (fd, readbuf, len); |
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| 122 | rtems_test_assert (n == len); |
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| 123 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 124 | status = close (fd); |
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| 125 | rtems_test_assert (status == 0); |
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| 126 | |
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| 127 | /* |
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| 128 | * Open the file using O_RDWR |
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| 129 | */ |
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| 130 | memset (readbuf, 0, len + 1); |
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| 131 | |
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| 132 | fd = open (name01, O_RDWR); |
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| 133 | n = write (fd, databuf, len); |
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| 134 | rtems_test_assert (n == len); |
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| 135 | pos = lseek (fd, 0, SEEK_CUR); |
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| 136 | rtems_test_assert (pos == len); |
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| 137 | n = read (fd, readbuf, len); |
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| 138 | rtems_test_assert (n == len); |
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| 139 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 140 | pos = lseek (fd, 0, SEEK_CUR); |
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| 141 | rtems_test_assert (pos == 2 * len); |
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| 142 | status = close (fd); |
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| 143 | rtems_test_assert (status == 0); |
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| 144 | |
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| 145 | /* |
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[6fed43e] | 146 | * Open the file using O_TRUNC |
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[a7c39d3] | 147 | */ |
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| 148 | |
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| 149 | fd = open (name01, O_WRONLY | O_TRUNC); |
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| 150 | status = close (fd); |
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| 151 | rtems_test_assert (status == 0); |
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| 152 | |
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| 153 | /* |
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| 154 | * Verify if the length is zero |
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| 155 | */ |
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| 156 | status = stat (name01, &statbuf); |
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| 157 | rtems_test_assert (status == 0); |
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| 158 | rtems_test_assert (S_ISREG (statbuf.st_mode)); |
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| 159 | rtems_test_assert (statbuf.st_size == 0); |
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| 160 | |
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| 161 | /* |
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| 162 | * Open a directory |
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| 163 | */ |
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| 164 | status = mkdir (name02, mode); |
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| 165 | rtems_test_assert (status == 0); |
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| 166 | fd = open (name02, O_RDONLY); |
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| 167 | rtems_test_assert (fd != -1); |
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| 168 | |
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| 169 | status = close (fd); |
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| 170 | rtems_test_assert (status == 0); |
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| 171 | |
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| 172 | free (readbuf); |
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| 173 | |
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| 174 | /* |
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| 175 | * Go back to parent directory |
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| 176 | */ |
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[6fed43e] | 177 | status = chdir (".."); |
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| 178 | rtems_test_assert (status == 0); |
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[a7c39d3] | 179 | } |
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| 180 | |
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[6fed43e] | 181 | void |
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| 182 | truncate_test03 (void) |
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[a7c39d3] | 183 | { |
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| 184 | |
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[6fed43e] | 185 | int fd; |
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| 186 | int status; |
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| 187 | char *name01 = "name01"; |
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[a7c39d3] | 188 | struct stat statbuf; |
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| 189 | |
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[6fed43e] | 190 | char data; |
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| 191 | int n; |
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| 192 | int i; |
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[a7c39d3] | 193 | |
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[6fed43e] | 194 | size_t len = strlen (databuf); |
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[a7c39d3] | 195 | |
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| 196 | char *readbuf; |
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[6fed43e] | 197 | off_t good_size = 100; |
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| 198 | mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO; |
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[a7c39d3] | 199 | |
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| 200 | |
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[6fed43e] | 201 | const char *wd = __func__; |
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[a7c39d3] | 202 | |
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| 203 | /* |
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| 204 | * Create a new directory and change the current directory to this |
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| 205 | */ |
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[6fed43e] | 206 | status = mkdir (wd, mode); |
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| 207 | rtems_test_assert (status == 0); |
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| 208 | status = chdir (wd); |
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| 209 | rtems_test_assert (status == 0); |
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[a7c39d3] | 210 | |
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| 211 | /* |
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| 212 | * Create an empty file |
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| 213 | */ |
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[6fed43e] | 214 | fd = creat (name01, mode); |
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| 215 | status = close (fd); |
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| 216 | rtems_test_assert (status == 0); |
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[a7c39d3] | 217 | |
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| 218 | |
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| 219 | /* |
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| 220 | * Truncate it to a valid size |
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| 221 | */ |
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[6fed43e] | 222 | status = truncate (name01, good_size); |
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| 223 | rtems_test_assert (status == 0); |
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[a7c39d3] | 224 | /* |
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| 225 | * Verify the size and the data |
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| 226 | */ |
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[6fed43e] | 227 | status = stat (name01, &statbuf); |
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| 228 | rtems_test_assert (status == 0); |
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| 229 | rtems_test_assert (good_size == statbuf.st_size); |
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[a7c39d3] | 230 | |
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[6fed43e] | 231 | fd = open (name01, O_RDONLY); |
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| 232 | while ((n = read (fd, &data, 1)) > 0) { |
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| 233 | rtems_test_assert (data == 0); |
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[a7c39d3] | 234 | } |
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| 235 | |
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[6fed43e] | 236 | status = close (fd); |
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| 237 | rtems_test_assert (status == 0); |
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[a7c39d3] | 238 | |
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| 239 | /* |
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| 240 | * Fill a file with data |
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| 241 | */ |
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[6fed43e] | 242 | fd = open (name01, O_WRONLY); |
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| 243 | rtems_test_assert (fd != -1); |
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| 244 | n = write (fd, databuf, len); |
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| 245 | rtems_test_assert (n == len); |
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[a7c39d3] | 246 | |
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| 247 | /* |
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[6fed43e] | 248 | * Truncate it to the half size |
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[a7c39d3] | 249 | */ |
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| 250 | |
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[6fed43e] | 251 | status = truncate (name01, len / 2); |
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| 252 | status = truncate (name01, len); |
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[a7c39d3] | 253 | |
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| 254 | /* |
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| 255 | * verify the data |
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| 256 | */ |
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[6fed43e] | 257 | readbuf = (char *) malloc (len / 2); |
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| 258 | rtems_test_assert (readbuf); |
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| 259 | fd = open (name01, O_RDONLY); |
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| 260 | rtems_test_assert (fd != -1); |
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| 261 | n = read (fd, readbuf, len / 2); |
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| 262 | rtems_test_assert (n == len / 2); |
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| 263 | rtems_test_assert (!strncmp (databuf, readbuf, len / 2)); |
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| 264 | n = read (fd, readbuf, len / 2); |
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| 265 | rtems_test_assert (n == len / 2); |
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| 266 | for (i = 0; i < len / 2; i++) { |
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| 267 | rtems_test_assert (readbuf[i] == 0); |
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[a7c39d3] | 268 | } |
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[6fed43e] | 269 | status = close (fd); |
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| 270 | rtems_test_assert (status == 0); |
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[a7c39d3] | 271 | |
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| 272 | /* |
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| 273 | * Go back to parent directory |
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| 274 | */ |
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[6fed43e] | 275 | status = chdir (".."); |
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| 276 | rtems_test_assert (status == 0); |
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[a7c39d3] | 277 | } |
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| 278 | |
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[6fed43e] | 279 | void |
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| 280 | lseek_test (void) |
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[a7c39d3] | 281 | { |
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[6fed43e] | 282 | int fd; |
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| 283 | int status; |
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| 284 | char *name01 = "test_name01"; |
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[a7c39d3] | 285 | struct stat statbuf; |
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| 286 | |
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[6fed43e] | 287 | int n; |
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| 288 | int i; |
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[a7c39d3] | 289 | |
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[6fed43e] | 290 | size_t len = strlen (databuf); |
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[a7c39d3] | 291 | off_t pos; |
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[6fed43e] | 292 | int total_written = 0; |
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[a7c39d3] | 293 | |
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| 294 | char *readbuf; |
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[6fed43e] | 295 | mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO; |
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[a7c39d3] | 296 | |
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| 297 | |
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| 298 | |
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[6fed43e] | 299 | const char *wd = __func__; |
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[a7c39d3] | 300 | |
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| 301 | /* |
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| 302 | * Create a new directory and change the current directory to this |
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| 303 | */ |
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[6fed43e] | 304 | status = mkdir (wd, mode); |
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| 305 | rtems_test_assert (status == 0); |
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| 306 | status = chdir (wd); |
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| 307 | rtems_test_assert (status == 0); |
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[a7c39d3] | 308 | |
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| 309 | /* |
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| 310 | * Create a file and fill with the data. |
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| 311 | */ |
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[6fed43e] | 312 | puts ("Create a new file"); |
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| 313 | fd = creat (name01, mode); |
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| 314 | rtems_test_assert (fd != -1); |
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| 315 | |
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| 316 | pos = lseek (fd, 0, SEEK_CUR); |
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| 317 | rtems_test_assert (pos == 0); |
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[a7c39d3] | 318 | |
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[6fed43e] | 319 | pos = lseek (fd, 0, SEEK_END); |
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| 320 | rtems_test_assert (pos == 0); |
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[a7c39d3] | 321 | |
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[6fed43e] | 322 | pos = lseek (fd, 0, SEEK_SET); |
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| 323 | rtems_test_assert (pos == 0); |
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[a7c39d3] | 324 | |
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[6fed43e] | 325 | |
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| 326 | printf ("Writing %d bytes to file\n", len * 10); |
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| 327 | for (i = 0; i < 10; i++) { |
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| 328 | n = write (fd, databuf, len); |
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| 329 | rtems_test_assert (n != -1); |
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[a7c39d3] | 330 | total_written += n; |
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| 331 | } |
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[6fed43e] | 332 | printf ("Successfully wrote %d\n", total_written); |
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[a7c39d3] | 333 | |
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| 334 | /* |
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| 335 | * Check the current position |
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| 336 | */ |
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[6fed43e] | 337 | puts ("Check the current position"); |
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| 338 | pos = lseek (fd, 0, SEEK_CUR); |
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| 339 | rtems_test_assert (pos == total_written); |
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[a7c39d3] | 340 | |
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[6fed43e] | 341 | pos = lseek (fd, 0, SEEK_END); |
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| 342 | rtems_test_assert (pos == total_written); |
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[a7c39d3] | 343 | |
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| 344 | /* |
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| 345 | * ftruncate shall not change the posistion |
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| 346 | */ |
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[6fed43e] | 347 | status = ftruncate (fd, total_written + 1); |
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| 348 | rtems_test_assert (status == 0); |
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[a7c39d3] | 349 | |
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[6fed43e] | 350 | pos = lseek (fd, 0, SEEK_CUR); |
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| 351 | rtems_test_assert (pos == total_written); |
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[a7c39d3] | 352 | |
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[6fed43e] | 353 | pos = lseek (fd, 0, SEEK_END); |
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| 354 | printf ("%jd\n", (intmax_t) pos); |
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| 355 | rtems_test_assert (pos == total_written + 1); |
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[a7c39d3] | 356 | |
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[6fed43e] | 357 | status = ftruncate (fd, total_written); |
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| 358 | rtems_test_assert (status == 0); |
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[a7c39d3] | 359 | |
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[6fed43e] | 360 | pos = lseek (fd, 0, SEEK_CUR); |
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| 361 | rtems_test_assert (pos == total_written + 1); |
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[a7c39d3] | 362 | |
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[6fed43e] | 363 | |
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| 364 | status = close (fd); |
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| 365 | rtems_test_assert (status == 0); |
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[a7c39d3] | 366 | |
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| 367 | /* |
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| 368 | * Check the file size |
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| 369 | */ |
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[6fed43e] | 370 | status = stat (name01, &statbuf); |
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| 371 | rtems_test_assert (statbuf.st_size == total_written); |
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[a7c39d3] | 372 | |
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| 373 | /* |
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| 374 | * Open the file with O_RDONLY and check the lseek |
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| 375 | */ |
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[6fed43e] | 376 | readbuf = (char *) malloc (len); |
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| 377 | fd = open (name01, O_RDONLY); |
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| 378 | pos = lseek (fd, len, SEEK_CUR); |
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| 379 | rtems_test_assert (pos == len); |
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| 380 | n = read (fd, readbuf, len); |
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| 381 | rtems_test_assert (n == len); |
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| 382 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 383 | |
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| 384 | pos = lseek (fd, len, SEEK_CUR); |
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| 385 | rtems_test_assert (pos == 3 * len); |
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| 386 | n = read (fd, readbuf, len); |
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| 387 | rtems_test_assert (n == len); |
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| 388 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 389 | |
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| 390 | pos = lseek (fd, -len, SEEK_CUR); |
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| 391 | rtems_test_assert (pos == 3 * len); |
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| 392 | n = read (fd, readbuf, len); |
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| 393 | rtems_test_assert (n == len); |
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| 394 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 395 | |
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| 396 | pos = lseek (fd, 4 * len, SEEK_SET); |
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| 397 | n = read (fd, readbuf, len); |
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| 398 | rtems_test_assert (n == len); |
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| 399 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 400 | |
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| 401 | |
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| 402 | pos = lseek (fd, 10, SEEK_SET); |
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| 403 | n = read (fd, readbuf, len); |
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| 404 | rtems_test_assert (n == len); |
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| 405 | rtems_test_assert (strncmp (databuf, readbuf, len) != 0); |
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| 406 | |
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| 407 | pos = lseek (fd, -len, SEEK_END); |
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| 408 | n = read (fd, readbuf, 2 * len); |
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| 409 | rtems_test_assert (n == len); |
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| 410 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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| 411 | |
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| 412 | status = close (fd); |
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| 413 | rtems_test_assert (status == 0); |
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[a7c39d3] | 414 | |
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| 415 | /* |
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| 416 | * Open the file withe O_RDWR and check the lseek |
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| 417 | */ |
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| 418 | |
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[6fed43e] | 419 | fd = open (name01, O_RDWR); |
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[a7c39d3] | 420 | |
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[6fed43e] | 421 | pos = lseek (fd, len, SEEK_CUR); |
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| 422 | rtems_test_assert (pos == len); |
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| 423 | n = read (fd, readbuf, len); |
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| 424 | rtems_test_assert (n == len); |
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| 425 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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[a7c39d3] | 426 | |
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[6fed43e] | 427 | pos = lseek (fd, len, SEEK_CUR); |
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| 428 | rtems_test_assert (pos == 3 * len); |
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| 429 | n = read (fd, readbuf, len); |
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| 430 | rtems_test_assert (n == len); |
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| 431 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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[a7c39d3] | 432 | |
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[6fed43e] | 433 | pos = lseek (fd, -len, SEEK_CUR); |
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| 434 | rtems_test_assert (pos == 3 * len); |
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| 435 | n = read (fd, readbuf, len); |
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| 436 | rtems_test_assert (n == len); |
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| 437 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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[a7c39d3] | 438 | |
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[6fed43e] | 439 | pos = lseek (fd, 4 * len, SEEK_SET); |
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| 440 | n = read (fd, readbuf, len); |
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| 441 | rtems_test_assert (n == len); |
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| 442 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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[a7c39d3] | 443 | |
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| 444 | /* |
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[6fed43e] | 445 | * Go to the wrong position, so the data is not the same |
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[a7c39d3] | 446 | */ |
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[6fed43e] | 447 | pos = lseek (fd, 10, SEEK_SET); |
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| 448 | n = read (fd, readbuf, len); |
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| 449 | rtems_test_assert (n == len); |
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| 450 | rtems_test_assert (strncmp (databuf, readbuf, len) != 0); |
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[a7c39d3] | 451 | |
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| 452 | /* |
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[6fed43e] | 453 | * Use SEEK_END |
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[a7c39d3] | 454 | */ |
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[6fed43e] | 455 | pos = lseek (fd, -len, SEEK_END); |
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| 456 | n = read (fd, readbuf, 2 * len); |
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| 457 | rtems_test_assert (n == len); |
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| 458 | rtems_test_assert (!strncmp (databuf, readbuf, len)); |
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[a7c39d3] | 459 | |
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[6fed43e] | 460 | memset (readbuf, 0, len); |
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[a7c39d3] | 461 | |
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| 462 | /* |
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| 463 | * Write the zero to the end of file. |
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| 464 | */ |
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[6fed43e] | 465 | pos = lseek (fd, -len, SEEK_END); |
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| 466 | rtems_test_assert (pos == total_written - len); |
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| 467 | n = write (fd, readbuf, len); |
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| 468 | rtems_test_assert (n == len); |
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[a7c39d3] | 469 | /* |
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[6fed43e] | 470 | * Verify it |
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[a7c39d3] | 471 | */ |
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[6fed43e] | 472 | pos = lseek (fd, total_written - len, SEEK_SET); |
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| 473 | n = read (fd, readbuf, len); |
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| 474 | rtems_test_assert (n == len); |
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| 475 | for (i = 0; i < n; i++) { |
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| 476 | rtems_test_assert (readbuf[i] == 0); |
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[a7c39d3] | 477 | } |
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| 478 | |
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| 479 | /* |
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| 480 | * Write the zero to the beginning of file. |
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| 481 | */ |
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[6fed43e] | 482 | pos = lseek (fd, -total_written, SEEK_END); |
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| 483 | rtems_test_assert (pos == 0); |
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| 484 | n = write (fd, readbuf, len); |
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| 485 | rtems_test_assert (n == len); |
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[a7c39d3] | 486 | |
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| 487 | /* |
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| 488 | * Verify it |
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| 489 | */ |
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| 490 | |
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[6fed43e] | 491 | pos = lseek (fd, 0, SEEK_SET); |
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| 492 | n = read (fd, readbuf, len); |
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| 493 | rtems_test_assert (n == len); |
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| 494 | for (i = 0; i < n; i++) { |
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| 495 | rtems_test_assert (readbuf[i] == 0); |
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[a7c39d3] | 496 | } |
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| 497 | |
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[6fed43e] | 498 | n = read (fd, readbuf, len); |
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| 499 | rtems_test_assert (n == len); |
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| 500 | rtems_test_assert (strncmp (databuf, readbuf, len) == 0); |
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[a7c39d3] | 501 | /* |
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| 502 | * Call ftruncate to decrease the file and the position not change |
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| 503 | */ |
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[6fed43e] | 504 | status = ftruncate (fd, len); |
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| 505 | rtems_test_assert (status == 0); |
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| 506 | pos = lseek (fd, 0, SEEK_CUR); |
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| 507 | rtems_test_assert (pos == len * 2); |
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[a7c39d3] | 508 | |
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[6fed43e] | 509 | status = close (fd); |
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| 510 | rtems_test_assert (status == 0); |
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[a7c39d3] | 511 | /* |
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| 512 | * Go back to parent directory |
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| 513 | */ |
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[6fed43e] | 514 | status = chdir (".."); |
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| 515 | rtems_test_assert (status == 0); |
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[a7c39d3] | 516 | |
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| 517 | } |
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[6fed43e] | 518 | |
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| 519 | void |
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| 520 | test (void) |
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[a7c39d3] | 521 | { |
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[6fed43e] | 522 | read_write_test (); |
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| 523 | lseek_test (); |
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[a7c39d3] | 524 | } |
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