| /* |
| * Copyright (C) Bull S.A. 2001 |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * Test Name: fcntl22 |
| * |
| * Test Description: |
| * Verify that, fcntl() fails with -1 and sets errno to EAGAIN when |
| * Operation is prohibited by locks held by other processes. |
| * |
| * Expected Result: |
| * fcntl() should fail with return value -1 and sets expected errno. |
| * |
| * Algorithm: |
| * Setup: |
| * Setup signal handling. |
| * Pause for SIGUSR1 if option specified. |
| * Create temporary directory. |
| * Create and open temporary file. |
| * Lock temporary file. |
| * |
| * Test: |
| * Loop if the proper options are given. |
| * Duplicate process |
| * Parent waits for child termination |
| * Child execute system call |
| * Check return code, if system call failed (return=-1) |
| * if errno set == expected errno |
| * Issue sys call fails with expected return value and errno. |
| * Otherwise, |
| * Issue sys call fails with unexpected errno. |
| * Otherwise, |
| * Issue sys call returns unexpected value. |
| * |
| * Cleanup: |
| * Print errno log and/or timing stats if options given |
| * |
| * Usage: <for command-line> |
| * fcntl22 [-c n] [-e] [-f] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -f : Turn off functionality Testing. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 06/2002 Ported by Jacky Malcles |
| * |
| * RESTRICTIONS: |
| * none. |
| * |
| */ |
| |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| int child_pid; |
| int file; |
| struct flock fl; /* struct flock for fcntl */ |
| |
| #ifdef __hpux |
| /* oddball HP-UX declares the error case to be EACCES in the man page */ |
| int exp_enos[] = { EACCES, 0 }; |
| #else |
| int exp_enos[] = { EAGAIN, 0 }; |
| #endif |
| |
| char *TCID = "fcntl22"; |
| int TST_TOTAL = 1; |
| extern int Tst_count; |
| |
| void setup(void); |
| void cleanup(void); |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| char *test_desc; /* test specific error message */ |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| /* setup */ |
| setup(); |
| |
| /* set the expected errnos... */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* Check for looping state if -i option is given */ |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| #ifdef __hpux |
| test_desc = "EACCES"; |
| #else |
| test_desc = "EAGAIN"; |
| #endif |
| |
| /* reset Tst_count in case we are looping */ |
| Tst_count = 0; |
| |
| /* duplicate process */ |
| if ((child_pid = FORK_OR_VFORK()) == 0) { |
| /* child */ |
| /* |
| * Call fcntl(2) with F_SETLK argument on file |
| */ |
| TEST(fcntl(file, F_SETLK, &fl)); |
| |
| /* Check return code from fcntl(2) */ |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "fcntl() returned %ld," |
| "expected -1, errno=%d", TEST_RETURN, |
| exp_enos[0]); |
| } else { |
| TEST_ERROR_LOG(TEST_ERRNO); |
| |
| if (TEST_ERRNO == exp_enos[0]) { |
| tst_resm(TPASS, |
| "fcntl() fails with expected " |
| "error %s errno:%d", test_desc, |
| TEST_ERRNO); |
| } else { |
| tst_resm(TFAIL, "fcntl() fails, %s, " |
| "errno=%d, expected errno=%d", |
| test_desc, TEST_ERRNO, |
| exp_enos[0]); |
| } |
| } |
| /* end child */ |
| } else { |
| if (child_pid < 0) { |
| /* quit if fork fail */ |
| tst_resm(TFAIL, "Fork failed"); |
| cleanup(); |
| } else { |
| /* Parent waits for child termination */ |
| wait(0); |
| cleanup(); |
| } |
| } |
| |
| } /* end for */ |
| return 0; |
| } |
| |
| /* |
| * setup |
| * performs all ONE TIME setup for this test |
| */ |
| void setup() |
| { |
| |
| /* capture signals */ |
| tst_sig(FORK, DEF_HANDLER, cleanup); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* Make a temp dir and cd to it */ |
| tst_tmpdir(); |
| |
| /* create regular file */ |
| if ((file = creat("regfile", 0777)) == -1) { |
| tst_brkm(TBROK, cleanup, |
| "creat(regfile, 0777) failed, errno:%d %s", errno, |
| strerror(errno)); |
| } |
| /* struct lock */ |
| fl.l_type = F_WRLCK; |
| fl.l_whence = 0; |
| fl.l_start = 0; |
| fl.l_len = 0; |
| |
| /* lock file */ |
| if (fcntl(file, F_SETLK, &fl) < 0) { |
| tst_resm(TFAIL|TERRNO, "fcntl on file %d failed", |
| file); |
| } |
| |
| } |
| |
| /* |
| * cleanup() |
| * performs all ONE TIME cleanup for this test at completion or |
| * premature exit |
| */ |
| void cleanup() |
| { |
| /* |
| * print timing stats if that option was specified |
| * print errno log if that option was specified |
| */ |
| close(file); |
| |
| TEST_CLEANUP; |
| /* remove temporary directory */ |
| tst_rmdir(); |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |