1 /* 2 * 3 * Copyright (c) International Business Machines Corp., 2001 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program 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 13 * the GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20 /* 21 * NAME 22 * rename13 23 * 24 * DESCRIPTION 25 * Verify rename() return successfully and performs no other action 26 * when "old" file and "new" file link to the same file. 27 * 28 * ALGORITHM 29 * Setup: 30 * Setup signal handling. 31 * Create temporary directory. 32 * Pause for SIGUSR1 if option specified. 33 * 34 * Test: 35 * Loop if the proper options are given. 36 * create the "old" file 37 * link the "new" file to the "old" file 38 * rename the "old" to the "new" file 39 * verify the "new" file points to the original file 40 * verify the "old" file exists and points to 41 * the original file 42 * Cleanup: 43 * Print errno log and/or timing stats if options given 44 * Delete the temporary directory created. 45 * 46 * USAGE 47 * rename13 [-c n] [-f] [-i n] [-I x] [-P x] [-t] 48 * where, -c n : Run n copies concurrently. 49 * -f : Turn off functionality Testing. 50 * -i n : Execute test n times. 51 * -I x : Execute test for x seconds. 52 * -P x : Pause for x seconds between iterations. 53 * -t : Turn on syscall timing. 54 * 55 * HISTORY 56 * 07/2001 Ported by Wayne Boyer 57 * 58 * RESTRICTIONS 59 * None. 60 */ 61 #include <sys/types.h> 62 #include <fcntl.h> 63 #include <sys/stat.h> 64 #include <unistd.h> 65 #include <errno.h> 66 67 #include "test.h" 68 69 void setup(); 70 void cleanup(); 71 72 char *TCID = "rename13"; 73 int TST_TOTAL = 1; 74 75 int fd; 76 char fname[255], mname[255]; 77 struct stat buf1, buf2; 78 dev_t olddev; 79 ino_t oldino; 80 81 int main(int ac, char **av) 82 { 83 int lc; 84 85 /* 86 * parse standard options 87 */ 88 tst_parse_opts(ac, av, NULL, NULL); 89 90 /* 91 * perform global setup for test 92 */ 93 setup(); 94 95 /* 96 * check looping state if -i option given 97 */ 98 for (lc = 0; TEST_LOOPING(lc); lc++) { 99 100 tst_count = 0; 101 102 /* 103 * TEST rename()works when 104 * both old file and new file link to the same file 105 */ 106 107 /* Call rename(2) */ 108 TEST(rename(fname, mname)); 109 110 if (TEST_RETURN == -1) { 111 tst_resm(TFAIL, "rename(%s, %s) failed", fname, mname); 112 continue; 113 } 114 115 /* check the existence of "new", and get the status */ 116 if (stat(mname, &buf2) == -1) { 117 tst_brkm(TBROK, cleanup, "failed to stat file " 118 "%s in rename()", mname); 119 120 } 121 122 /* check the existence of "old", and get the status */ 123 if (stat(fname, &buf1) == -1) { 124 tst_brkm(TBROK, cleanup, "failed to stat file " 125 "%s in rename()", fname); 126 127 } 128 129 /* verify the new file is the same as the original */ 130 if (buf2.st_dev != olddev || buf2.st_ino != oldino) { 131 tst_resm(TFAIL, 132 "rename() failed: new file does " 133 "not point to the same file as old " 134 "file"); 135 continue; 136 } 137 138 /* verify the old file is unchanged */ 139 if (buf1.st_dev != olddev || buf1.st_ino != oldino) { 140 tst_resm(TFAIL, 141 "rename() failed: old file does " 142 "not point to the original file"); 143 continue; 144 } 145 146 tst_resm(TPASS, "functionality of rename() is correct"); 147 } 148 149 cleanup(); 150 tst_exit(); 151 } 152 153 /* 154 * setup() - performs all ONE TIME setup for this test. 155 */ 156 void setup(void) 157 { 158 159 tst_sig(NOFORK, DEF_HANDLER, cleanup); 160 161 TEST_PAUSE; 162 163 /* Create a temporary directory and make it current. */ 164 tst_tmpdir(); 165 166 sprintf(fname, "./tfile_%d", getpid()); 167 sprintf(mname, "./rnfile_%d", getpid()); 168 169 SAFE_TOUCH(cleanup, fname, 0700, NULL); 170 171 if (stat(fname, &buf1) == -1) { 172 tst_brkm(TBROK, cleanup, "failed to stat file %s" 173 "in rename()", fname); 174 175 } 176 177 /* save the dev and inode */ 178 olddev = buf1.st_dev; 179 oldino = buf1.st_ino; 180 181 /* link the "new" file to the "old" file */ 182 if (link(fname, mname) == -1) { 183 tst_brkm(TBROK, cleanup, 184 "link from %s to %s failed!", fname, mname); 185 } 186 } 187 188 /* 189 * cleanup() - performs all ONE TIME cleanup for this test at 190 * completion or premature exit. 191 */ 192 void cleanup(void) 193 { 194 195 /* 196 * Remove the temporary directory. 197 */ 198 tst_rmdir(); 199 200 } 201
