102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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* Copyright (c) 2012 Cyril Hrubis <chrubis@suse.cz>
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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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* wait402 - check for ECHILD errno when using an illegal pid value
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*/
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#include "test.h"
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#include <errno.h>
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#define _USE_BSD
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#include <sys/types.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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#include <stdlib.h>
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#include <string.h>
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char *TCID = "wait402";
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int TST_TOTAL = 1;
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static void cleanup(void);
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static void setup(void);
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static long get_pid_max(void)
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{
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long pid_max;
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SAFE_FILE_SCANF(NULL, "/proc/sys/kernel/pid_max", "%ld", &pid_max);
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return pid_max;
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}
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int main(int ac, char **av)
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{
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int lc;
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pid_t epid = get_pid_max() + 1;
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int status = 1;
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struct rusage rusage;
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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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TEST(wait4(epid, &status, 0, &rusage));
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if (TEST_RETURN == 0) {
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tst_brkm(TFAIL, cleanup,
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"call failed to produce expected error - errno = %d - %s",
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TEST_ERRNO, strerror(TEST_ERRNO));
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}
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switch (TEST_ERRNO) {
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case ECHILD:
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tst_resm(TPASS,
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"received expected failure - errno = %d - %s",
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TEST_ERRNO, strerror(TEST_ERRNO));
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break;
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default:
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tst_brkm(TFAIL, cleanup,
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"call failed to produce expected "
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"error - 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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static 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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}
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static void cleanup(void)
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{
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}
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