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: lseek10 22 * 23 * Test Description: 24 * Verify that, 25 * 1. lseek() returns -1 and sets errno to ESPIPE, if the file handle of 26 * the specified file is associated with a pipe, socket, or FIFO. 27 * 2. lseek() returns -1 and sets errno to EINVAL, if the 'Whence' argument 28 * is not a proper value. 29 * 3. lseek() returns -1 and sets errno to EBADF, if the file handle of 30 * the specified file is not valid. 31 * 32 * Expected Result: 33 * lseek() should fail with return value -1 and set expected errno. 34 * 35 * Algorithm: 36 * Setup: 37 * Setup signal handling. 38 * Create temporary directory. 39 * Pause for SIGUSR1 if option specified. 40 * 41 * Test: 42 * Loop if the proper options are given. 43 * Execute system call 44 * Check return code, if system call failed (return=-1) 45 * if errno set == expected errno 46 * Issue sys call fails with expected return value and errno. 47 * Otherwise, 48 * Issue sys call fails with unexpected errno. 49 * Otherwise, 50 * Issue sys call returns unexpected value. 51 * 52 * Cleanup: 53 * Print errno log and/or timing stats if options given 54 * Delete the temporary directory(s)/file(s) created. 55 * 56 * Usage: <for command-line> 57 * lseek10 [-c n] [-e] [-i n] [-I x] [-p x] [-t] 58 * where, -c n : Run n copies concurrently. 59 * -e : Turn on errno logging. 60 * -i n : Execute test n times. 61 * -I x : Execute test for x seconds. 62 * -P x : Pause for x seconds between iterations. 63 * -t : Turn on syscall timing. 64 * 65 * HISTORY 66 * 07/2001 Ported by Wayne Boyer 67 * 68 * RESTRICTIONS: 69 * None. 70 */ 71 72 #include <stdio.h> 73 #include <unistd.h> 74 #include <sys/types.h> 75 #include <errno.h> 76 #include <unistd.h> 77 #include <fcntl.h> 78 #include <utime.h> 79 #include <string.h> 80 #include <sys/stat.h> 81 #include <signal.h> 82 83 #include "test.h" 84 85 #define TEMP_FILE1 "tmp_file1" 86 #define TEMP_FILE2 "tmp_file2" 87 #define TEMP_FILE3 "tmp_file3" 88 #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH 89 #define PIPE_MODE S_IFIFO | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH 90 #define SEEK_TOP 10 91 92 char *TCID = "lseek10"; 93 int TST_TOTAL = 3; 94 95 int no_setup(); 96 int setup1(); /* setup function to test lseek() for ESPIPE */ 97 int setup2(); /* setup function to test lseek() for EINVAL */ 98 int setup3(); /* setup function to test lseek() for EBADF */ 99 100 int fd1; /* file handle for testfile1 */ 101 int fd2; /* file handle for testfile2 */ 102 int fd3; /* file handle for testfile3 */ 103 104 struct test_case_t { /* test case struct. to hold ref. test cond's */ 105 int fd; 106 int Whence; 107 char *desc; 108 int exp_errno; 109 int (*setupfunc) (); 110 } Test_cases[] = { 111 { 112 1, SEEK_SET, "'fd' associated with a pipe/fifo", ESPIPE, setup1}, { 113 2, SEEK_TOP, "'whence' argument is not valid", EINVAL, setup2}, { 114 3, SEEK_SET, "'fd' is not an open file descriptor", EBADF, setup3}, 115 { 116 0, 0, NULL, 0, no_setup} 117 }; 118 119 void setup(); /* Main setup function of test */ 120 void cleanup(); /* cleanup function for the test */ 121 122 int main(int ac, char **av) 123 { 124 int lc; 125 int fildes; /* file handle for testfile */ 126 int whence; /* position of file handle in the file */ 127 char *test_desc; /* test specific error message */ 128 int ind; /* counter to test different test conditions */ 129 130 tst_parse_opts(ac, av, NULL, NULL); 131 132 setup(); 133 134 for (lc = 0; TEST_LOOPING(lc); lc++) { 135 136 tst_count = 0; 137 138 for (ind = 0; Test_cases[ind].desc != NULL; ind++) { 139 fildes = Test_cases[ind].fd; 140 test_desc = Test_cases[ind].desc; 141 whence = Test_cases[ind].Whence; 142 143 /* Assign the 'fd' values appropriatly */ 144 if (fildes == 1) { 145 fildes = fd1; 146 } else if (fildes == 2) { 147 fildes = fd2; 148 } else { 149 fildes = fd3; 150 } 151 /* 152 * Invoke lseek(2) to test different test conditions. 153 * Verify that it fails with -1 return value and 154 * sets appropriate errno. 155 */ 156 TEST(lseek(fildes, 0, whence)); 157 158 if (TEST_RETURN != (off_t) - 1) { 159 tst_resm(TFAIL, 160 "lseek() returned %ld, expected " 161 "-1, errno:%d", TEST_RETURN, 162 Test_cases[ind].exp_errno); 163 continue; 164 } 165 if (TEST_ERRNO == Test_cases[ind].exp_errno) { 166 tst_resm(TPASS, "lseek() fails, %s, errno:%d", 167 test_desc, TEST_ERRNO); 168 } else { 169 tst_resm(TFAIL, "lseek() fails, %s, errno:%d, " 170 "expected errno:%d", test_desc, 171 TEST_ERRNO, Test_cases[ind].exp_errno); 172 } 173 } 174 } 175 176 cleanup(); 177 tst_exit(); 178 179 } 180 181 /* 182 * setup() - performs all ONE TIME setup for this test. 183 * Create a temporary directory and change directory to it. 184 * Invoke individual test setup functions according to the order 185 * set in test struct. definition. 186 */ 187 void setup(void) 188 { 189 int ind; 190 191 tst_sig(NOFORK, DEF_HANDLER, cleanup); 192 193 TEST_PAUSE; 194 195 tst_tmpdir(); 196 197 /* call individual setup functions */ 198 for (ind = 0; Test_cases[ind].desc != NULL; ind++) { 199 Test_cases[ind].setupfunc(); 200 } 201 } 202 203 /* 204 * no_setup() - This is a dummy function which simply returns 0. 205 */ 206 int no_setup(void) 207 { 208 return 0; 209 } 210 211 /* 212 * setup1() - setup function for a test condition for which lseek(2) 213 * returns -1 and sets errno to ESPIPE. 214 * Creat a named pipe/fifo using mknod() and open it for 215 * reading/writing. 216 * This function returns 0 on success. 217 */ 218 int setup1(void) 219 { 220 /* Creat a named pipe/fifo using mknod() */ 221 if (mknod(TEMP_FILE1, PIPE_MODE, 0) < 0) { 222 tst_brkm(TBROK, cleanup, 223 "mknod(%s, %#o, 0) Failed, errno=%d :%s", 224 TEMP_FILE1, FILE_MODE, errno, strerror(errno)); 225 } 226 227 /* Open the named pipe/fifo for reading/writing */ 228 if ((fd1 = open(TEMP_FILE1, O_RDWR)) < 0) { 229 tst_brkm(TBROK, cleanup, 230 "open(%s, O_RDWR) Failed, errno=%d, :%s", 231 TEMP_FILE1, errno, strerror(errno)); 232 } 233 234 return 0; 235 } 236 237 /* 238 * setup2() - setup function for a test condition for which lseek(2) 239 * returns -1 and sets errno to EINVAL. 240 * Creat a temporary file for reading/writing and write some data 241 * into it. 242 * This function returns 0 on success. 243 */ 244 int setup2(void) 245 { 246 char write_buff[BUFSIZ]; /* buffer to hold data */ 247 248 /* Get the data to be written to temporary file */ 249 strcpy(write_buff, "abcdefg"); 250 251 /* Creat/open a temporary file under above directory */ 252 if ((fd2 = open(TEMP_FILE2, O_RDWR | O_CREAT, FILE_MODE)) == -1) { 253 tst_brkm(TBROK, cleanup, 254 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s", 255 TEMP_FILE2, FILE_MODE, errno, strerror(errno)); 256 } 257 258 /* Write data into temporary file */ 259 if (write(fd2, write_buff, sizeof(write_buff)) <= 0) { 260 tst_brkm(TBROK, cleanup, 261 "write(2) on %s Failed, errno=%d : %s", 262 TEMP_FILE2, errno, strerror(errno)); 263 } 264 265 return 0; 266 } 267 268 /* 269 * setup3() - setup function for a test condition for which lseek(2) 270 * returns -1 and sets errno to EBADF. 271 * Creat a temporary file for reading/writing and close it. 272 * This function returns 0 on success. 273 */ 274 int setup3(void) 275 { 276 /* Creat/open a temporary file under above directory */ 277 if ((fd3 = open(TEMP_FILE3, O_RDWR | O_CREAT, FILE_MODE)) == -1) { 278 tst_brkm(TBROK, cleanup, 279 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d :%s", 280 TEMP_FILE3, FILE_MODE, errno, strerror(errno)); 281 } 282 283 /* Close the temporary file created above */ 284 if (close(fd3) < 0) { 285 tst_brkm(TBROK, cleanup, 286 "close(%s) Failed, errno=%d : %s:", 287 TEMP_FILE3, errno, strerror(errno)); 288 } 289 290 return 0; 291 } 292 293 /* 294 * cleanup() - performs all ONE TIME cleanup for this test at 295 * completion or premature exit. 296 * Remove the test directory and testfile(s) created in the setup. 297 */ 298 void cleanup(void) 299 { 300 301 /* Close the temporary file(s) created in setup1/setup2 */ 302 if (close(fd1) < 0) { 303 tst_brkm(TFAIL, NULL, 304 "close(%s) Failed, errno=%d : %s:", 305 TEMP_FILE1, errno, strerror(errno)); 306 } 307 if (close(fd2) < 0) { 308 tst_brkm(TFAIL, NULL, 309 "close(%s) Failed, errno=%d : %s:", 310 TEMP_FILE2, errno, strerror(errno)); 311 } 312 313 tst_rmdir(); 314 315 } 316
