167 lines
3.3 KiB
C
167 lines
3.3 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2002
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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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/* 11/12/2002 Port to LTP robbiew@us.ibm.com */
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/* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
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/*
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* NAME
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* rename14.c - create and rename files
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*
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* CALLS
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* create, unlink, rename
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*
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* ALGORITHM
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* Creates two processes. One creates and unlinks a file.
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* The other renames that file.
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*
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*/
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#include <stdio.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 <unistd.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "test.h"
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#define FAILED 0
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#define PASSED 1
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int local_flag = PASSED;
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char *TCID = "rename14";
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int TST_TOTAL = 1;
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#define RUNTIME 5
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int kidpid[2];
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int parent_pid;
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int term(void);
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int al(void);
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void dochild1(void);
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void dochild2(void);
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int main(int argc, char *argv[])
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{
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int pid;
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sigset_t set;
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struct sigaction act, oact;
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tst_parse_opts(argc, argv, NULL, NULL);
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sigemptyset(&set);
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act.sa_handler = (void (*)())term;
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act.sa_mask = set;
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act.sa_flags = 0;
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if (sigaction(SIGTERM, &act, &oact)) {
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tst_brkm(TBROK, NULL, "Sigaction(SIGTERM)");
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}
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sigemptyset(&set);
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act.sa_handler = (void (*)())al;
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act.sa_mask = set;
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act.sa_flags = 0;
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if (sigaction(SIGALRM, &act, 0)) {
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tst_brkm(TBROK, NULL, "Sigaction(SIGALRM)");
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}
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parent_pid = getpid();
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tst_tmpdir();
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pid = FORK_OR_VFORK();
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if (pid < 0)
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tst_brkm(TBROK, NULL, "fork() returned %d", pid);
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if (pid == 0)
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dochild1();
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kidpid[0] = pid;
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pid = FORK_OR_VFORK();
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if (pid < 0) {
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(void)kill(kidpid[0], SIGTERM);
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(void)unlink("./rename14");
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tst_brkm(TBROK, NULL, "fork() returned %d", pid);
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}
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if (pid == 0)
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dochild2();
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kidpid[1] = pid;
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alarm(RUNTIME);
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/* Collect child processes. */
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/* Wait for timeout */
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pause();
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kill(kidpid[0], SIGTERM);
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kill(kidpid[1], SIGTERM);
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waitpid(kidpid[0], NULL, 0);
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waitpid(kidpid[1], NULL, 0);
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unlink("./rename14");
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unlink("./rename14xyz");
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(local_flag == PASSED) ? tst_resm(TPASS, "Test Passed")
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: tst_resm(TFAIL, "Test Failed");
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tst_rmdir();
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tst_exit();
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}
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int term(void)
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{
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if (parent_pid != getpid())
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exit(0);
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if (kidpid[0])
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return (kill(kidpid[0], SIGTERM));
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if (kidpid[1])
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return (kill(kidpid[1], SIGTERM));
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return 0;
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}
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int al(void)
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{
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if (kidpid[0])
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return (kill(kidpid[0], SIGTERM));
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if (kidpid[1])
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return (kill(kidpid[1], SIGTERM));
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return 0;
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}
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void dochild1(void)
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{
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int fd;
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for (;;) {
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fd = creat("./rename14", 0666);
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unlink("./rename14");
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close(fd);
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}
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}
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void dochild2(void)
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{
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for (;;)
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rename("./rename14", "./rename14xyz");
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}
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