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 * Test Name : symlink04 22 * 23 * Test Description : 24 * Verify that, symlink will succeed to creat a symbolic link of an existing 25 * object name path. 26 * 27 * Expected Result: 28 * symlink() should return value 0 on success and symbolic link of an 29 * existing object should be created. 30 * 31 * Algorithm: 32 * Setup: 33 * Setup signal handling. 34 * Create temporary directory. 35 * Pause for SIGUSR1 if option specified. 36 * 37 * Test: 38 * Loop if the proper options are given. 39 * Execute system call 40 * Check return code, if system call failed (return=-1) 41 * Log the errno and Issue a FAIL message. 42 * Otherwise, 43 * Verify the Functionality of system call 44 * if successful, 45 * Issue Functionality-Pass message. 46 * Otherwise, 47 * Issue Functionality-Fail message. 48 * Cleanup: 49 * Print errno log and/or timing stats if options given 50 * Delete the temporary directory created. 51 * 52 * Usage: <for command-line> 53 * symlink04 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t] 54 * where, -c n : Run n copies concurrently. 55 * -e : Turn on errno logging. 56 * -f : Turn off functionality Testing. 57 * -i n : Execute test n times. 58 * -I x : Execute test for x seconds. 59 * -P x : Pause for x seconds between iterations. 60 * -t : Turn on syscall timing. 61 * 62 * History 63 * 07/2001 John George 64 * -Ported 65 * 66 * Restrictions: 67 * None. 68 * 69 */ 70 71 #include <stdio.h> 72 #include <sys/types.h> 73 #include <fcntl.h> 74 #include <errno.h> 75 #include <string.h> 76 #include <signal.h> 77 #include <sys/stat.h> 78 #include "test.h" 79 #include "safe_macros.h" 80 81 #define TESTFILE "testfile" 82 #define SYMFILE "slink_file" 83 #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH 84 85 char *TCID = "symlink04"; 86 int TST_TOTAL = 1; 87 88 void setup(); 89 void cleanup(); 90 91 int main(int ac, char **av) 92 { 93 struct stat stat_buf; /* stat structure buffer */ 94 int lc; 95 96 tst_parse_opts(ac, av, NULL, NULL); 97 98 setup(); 99 100 for (lc = 0; TEST_LOOPING(lc); lc++) { 101 102 tst_count = 0; 103 104 /* 105 * Call symlink(2) to create a symlink of 106 * testfile. 107 */ 108 TEST(symlink(TESTFILE, SYMFILE)); 109 110 if (TEST_RETURN == -1) { 111 tst_resm(TFAIL, "symlink(%s, %s) Failed, errno=%d : %s", 112 TESTFILE, SYMFILE, TEST_ERRNO, 113 strerror(TEST_ERRNO)); 114 } else { 115 /* 116 * Get the symlink file status information 117 * using lstat(2). 118 */ 119 if (lstat(SYMFILE, &stat_buf) < 0) { 120 tst_brkm(TFAIL, cleanup, "lstat(2) of " 121 "%s failed, error:%d", SYMFILE, 122 errno); 123 } 124 125 /* Check if the st_mode contains a link */ 126 if (!S_ISLNK(stat_buf.st_mode)) { 127 tst_resm(TFAIL, 128 "symlink of %s doesn't exist", 129 TESTFILE); 130 } else { 131 tst_resm(TPASS, "symlink(%s, %s) " 132 "functionality successful", 133 TESTFILE, SYMFILE); 134 } 135 } 136 137 /* Unlink the symlink file for next loop */ 138 SAFE_UNLINK(cleanup, SYMFILE); 139 tst_count++; /* incr TEST_LOOP counter */ 140 } 141 142 cleanup(); 143 tst_exit(); 144 145 } 146 147 /* 148 * void 149 * setup() - performs all ONE TIME setup for this test. 150 * Create a temporary directory and change directory to it. 151 * Create a test file under temporary directory and close it 152 */ 153 void setup(void) 154 { 155 int fd; /* file handle for testfile */ 156 157 tst_sig(NOFORK, DEF_HANDLER, cleanup); 158 159 /* Pause if that option was specified 160 * TEST_PAUSE contains the code to fork the test with the -i option. 161 * You want to make sure you do this before you create your temporary 162 * directory. 163 */ 164 TEST_PAUSE; 165 166 tst_tmpdir(); 167 168 /* creat/open a testfile */ 169 if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) { 170 tst_brkm(TBROK, cleanup, 171 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d : %s", 172 TESTFILE, FILE_MODE, errno, strerror(errno)); 173 } 174 175 /* Close the temporary file created above */ 176 if (close(fd) == -1) { 177 tst_resm(TBROK, "close(%s) Failed, errno=%d : %s", 178 TESTFILE, errno, strerror(errno)); 179 } 180 } 181 182 /* 183 * void 184 * cleanup() - performs all ONE TIME cleanup for this test at 185 * completion or premature exit. 186 * Remove the test directory and testfile created in the setup. 187 */ 188 void cleanup(void) 189 { 190 191 tst_rmdir(); 192 193 } 194
