135 lines
3.1 KiB
C
135 lines
3.1 KiB
C
/*
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*
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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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* NAME
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* pipe05.c
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*
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* DESCRIPTION
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* Check what happens when pipe is passed a bad file descriptor.
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*
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* ALGORITHM
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* Issue the pipe call with a bad file descriptor.
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* Check that we get EFAULT.
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*
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* USAGE: <for command-line>
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* pipe05 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
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* where, -c n : Run n copies concurrently.
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* -e : Turn on errno logging.
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* -i n : Execute test n times.
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* -I x : Execute test for x seconds.
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* -P x : Pause for x seconds between iterations.
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* -t : Turn on syscall timing.
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*
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* HISTORY
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* 07/2001 Ported by Wayne Boyer
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*
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* RESTRICTIONS
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* None
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*/
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#include <fcntl.h>
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#include <errno.h>
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#include <setjmp.h>
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#include "test.h"
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char *TCID = "pipe05";
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int TST_TOTAL = 1;
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intptr_t pipes;
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void setup(void);
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void cleanup(void);
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jmp_buf sig11_recover;
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void sig11_handler(int sig);
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int main(int ac, char **av)
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{
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volatile int lc;
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struct sigaction sa, osa;
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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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/* reset tst_count in case we are looping */
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tst_count = 0;
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/* special sig11 case */
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sa.sa_handler = &sig11_handler;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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sigaction(SIGSEGV, NULL, &osa);
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sigaction(SIGSEGV, &sa, NULL);
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if (setjmp(sig11_recover)) {
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TEST_RETURN = -1;
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TEST_ERRNO = EFAULT;
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} else {
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TEST(pipe((int *)pipes));
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}
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sigaction(SIGSEGV, &osa, NULL);
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if (TEST_RETURN != -1) {
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tst_resm(TFAIL, "call succeeded unexpectedly");
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}
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if (TEST_ERRNO != EFAULT) {
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tst_resm(TFAIL, "unexpected error - %d : %s - "
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"expected EMFILE", TEST_ERRNO,
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strerror(TEST_ERRNO));
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} else {
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tst_resm(TPASS, "expected failure - "
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"errno = %d : %s", TEST_ERRNO,
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strerror(TEST_ERRNO));
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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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/*
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* setup() - performs all ONE TIME setup for this test.
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*/
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void setup(void)
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{
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tst_sig(NOFORK, DEF_HANDLER, cleanup);
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TEST_PAUSE;
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}
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/******************************************************************
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* sig11_handler() - our segfault recover hack
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******************************************************************/
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void sig11_handler(int sig LTP_ATTRIBUTE_UNUSED)
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{
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longjmp(sig11_recover, 1);
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}
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/*
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* cleanup() - performs all ONE TIME cleanup for this test at
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* completion or premature exit.
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*/
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void cleanup(void)
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{
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}
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