128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
/*
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* Copyright (C) Bull S.A. 2001
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* Copyright (c) International Business Machines Corp., 2001
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Test Name: fcntl22
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*
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* Test Description:
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* Verify that, fcntl() fails with -1 and sets errno to EAGAIN when
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* Operation is prohibited by locks held by other processes.
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*
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* Expected Result:
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* fcntl() should fail with return value -1 and sets expected errno.
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*
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* HISTORY
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* 06/2002 Ported by Jacky Malcles
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*/
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#include <fcntl.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "test.h"
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int child_pid;
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int file;
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struct flock fl;
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char *TCID = "fcntl22";
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int TST_TOTAL = 1;
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void setup(void);
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void cleanup(void);
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int main(int ac, char **av)
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{
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int lc;
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tst_parse_opts(ac, av, NULL, NULL);
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setup();
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for (lc = 0; TEST_LOOPING(lc); lc++) {
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tst_count = 0;
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child_pid = FORK_OR_VFORK();
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switch (child_pid) {
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case 0:
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TEST(fcntl(file, F_SETLK, &fl));
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if (TEST_RETURN != -1) {
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tst_resm(TFAIL, "fcntl() returned %ld,"
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"expected -1, errno=%d", TEST_RETURN,
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EAGAIN);
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} else {
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if (TEST_ERRNO == EAGAIN) {
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tst_resm(TPASS,
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"fcntl() fails with expected "
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"error EAGAIN errno:%d",
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TEST_ERRNO);
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} else {
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tst_resm(TFAIL, "fcntl() fails, EAGAIN, "
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"errno=%d, expected errno=%d",
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TEST_ERRNO, EAGAIN);
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}
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}
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tst_exit();
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break;
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case -1:
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tst_brkm(TBROK|TERRNO, cleanup, "Fork failed");
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break;
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default:
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tst_record_childstatus(cleanup, child_pid);
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}
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}
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cleanup();
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tst_exit();
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}
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void setup(void)
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{
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tst_sig(FORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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tst_tmpdir();
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if ((file = creat("regfile", 0777)) == -1) {
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tst_brkm(TBROK, cleanup,
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"creat(regfile, 0777) failed, errno:%d %s", errno,
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strerror(errno));
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}
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fl.l_type = F_WRLCK;
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fl.l_whence = 0;
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fl.l_start = 0;
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fl.l_len = 0;
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if (fcntl(file, F_SETLK, &fl) < 0)
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tst_brkm(TBROK | TERRNO, cleanup, "fcntl() failed");
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}
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void cleanup(void)
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{
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close(file);
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tst_rmdir();
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}
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