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Diffstat (limited to 'winsup/testsuite/winsup.api/semtest.c')
| -rw-r--r-- | winsup/testsuite/winsup.api/semtest.c | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/winsup/testsuite/winsup.api/semtest.c b/winsup/testsuite/winsup.api/semtest.c deleted file mode 100644 index dfb8c08eb..000000000 --- a/winsup/testsuite/winsup.api/semtest.c +++ /dev/null @@ -1,348 +0,0 @@ -/*- - * Copyright (c) 1999 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, - * NASA Ames Research Center. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * Obtained from: $NetBSD: semtest.c,v 1.4 2002/07/20 08:36:25 grant Exp $ - * $FreeBSD: /repoman/r/ncvs/src/tools/regression/sysvsem/semtest.c,v 1.1 2002/08/15 06:34:37 alfred Exp $ - */ - -/* - * Test the SVID-compatible Semaphore facility. - */ - -/* - * CV, 2003-11-17: Add to Cygwin testsuite. - */ -#include <sys/param.h> -#include <sys/ipc.h> -#include <sys/sem.h> -#include <sys/wait.h> - -#include <err.h> -#include <errno.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> - -#include "test.h" -#include "usctest.h" - -const char *TCID = "semtest"; /* Test program identifier. */ -int TST_TOTAL = 54; /* Total number of test cases. */ -extern int Tst_count; /* Test Case counter for tst_* routines */ - -int main (int, char *[]); -void print_semid_ds (struct semid_ds *, mode_t); -void sigsys_handler (int); -void sigchld_handler(int); -void cleanup (void); -void waiter (void); - -int sender_semid = -1; -pid_t child_pid; -int child_count; -int signal_was_sigchld; - -key_t semkey; - -/* - * This is the original semun union used by the sysvsem utility. - * It is deliberately kept here under #if 0'ed condition for future - * reference. PLEASE DO NOT REMOVE. The {SET,GET}ALL in FreeBSD - * are signed values, so the default version in sys/sem.h suffices. - */ -#if 1 /*0*/ -union semun { - int val; /* value for SETVAL */ - struct semid_ds *buf; /* buffer for IPC_{STAT,SET} */ - u_short *array; /* array for GETALL & SETALL */ -}; -#endif - -int -main(int argc, char *argv[]) -{ - struct sigaction sa; - union semun sun; - struct semid_ds s_ds; - sigset_t sigmask; - int i; - - Tst_count = 0; - - /* - * Install a SIGSYS handler so that we can exit gracefully if - * System V Semaphore support isn't in the kernel. - */ - sa.sa_handler = sigsys_handler; - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - if (sigaction(SIGSYS, &sa, NULL) == -1) - tst_brkm (TBROK, cleanup, "sigaction SIGSYS"); - - /* - * Install and SIGCHLD handler to deal with all possible exit - * conditions of the receiver. - */ - sa.sa_handler = sigchld_handler; - sigemptyset(&sa.sa_mask); - sa.sa_flags = 0; - if (sigaction(SIGCHLD, &sa, NULL) == -1) - tst_brkm (TBROK, cleanup, "sigaction SIGCHLD"); - - semkey = ftok("/", 4160); - tst_resm (semkey == (key_t)-1 ? TFAIL : TPASS, - "ftok(\"/\") returns valid value"); - - /* - * Initialize child_pid to ourselves to that the cleanup function - * works before we create the receiver. - */ - child_pid = getpid(); - - sender_semid = semget(semkey, 1, IPC_CREAT | 0640); - tst_resm (sender_semid == -1 ? TFAIL : TPASS, "sender calls semget"); - - sun.buf = &s_ds; - tst_resm (semctl(sender_semid, 0, IPC_STAT, sun) == -1 ? TFAIL : TPASS, - "semctl IPC_STAT"); - - print_semid_ds(&s_ds, 0640); - - s_ds.sem_perm.mode = (s_ds.sem_perm.mode & ~0777) | 0600; - - sun.buf = &s_ds; - tst_resm (semctl(sender_semid, 0, IPC_SET, sun) == -1 ? TFAIL : TPASS, - "semctl IPC_SET"); - - memset(&s_ds, 0, sizeof(s_ds)); - - sun.buf = &s_ds; - tst_resm (semctl(sender_semid, 0, IPC_STAT, sun) == -1 ? TFAIL : TPASS, - "semctl IPC_STAT"); - - tst_resm ((s_ds.sem_perm.mode & 0777) != 0600 ? TFAIL : TPASS, - "IPC_SET of mode holds"); - - print_semid_ds(&s_ds, 0600); - - for (child_count = 0; child_count < 5; child_count++) { - switch ((child_pid = fork())) { - case -1: - tst_brkm (TBROK, cleanup, "fork"); - /* NOTREACHED */ - - case 0: - Tst_count += 22 + child_count * 4; - tst_resm (TPASS, "fork"); - waiter(); - break; - - default: - break; - } - } - - /* - * Wait for all of the waiters to be attempting to acquire the - * semaphore. - */ - for (;;) { - i = semctl(sender_semid, 0, GETNCNT); - if (i == -1) - tst_brkm (TBROK, cleanup, "semctl GETNCNT"); - if (i == 5) - break; - } - - /* - * Now set the thundering herd in motion by initializing the - * semaphore to the value 1. - */ - sun.val = 1; - tst_resm (semctl(sender_semid, 0, SETVAL, sun) == -1 ? TFAIL : TPASS, - "sender: semctl SETVAL to 1"); - - /* - * Suspend forever; when we get SIGCHLD, the handler will exit. - */ - sigemptyset(&sigmask); - for (;;) { - (void) sigsuspend(&sigmask); - if (signal_was_sigchld) - signal_was_sigchld = 0; - else - break; - } - - /* - * ...and any other signal is an unexpected error. - */ - - tst_brkm (TBROK, cleanup, "sender: received unexpected signal"); - exit (1); -} - -void -sigsys_handler(int signo) -{ - - tst_brkm (TBROK, cleanup, - "System V Semaphore support is not present in the kernel"); -} - -void -sigchld_handler(int signo) -{ - union semun sun; - struct semid_ds s_ds; - int cstatus; - - /* - * Reap the child; if it exited successfully, then we're on the - * right track! - */ - if (wait(&cstatus) == -1) - tst_brkm (TBROK, cleanup, "wait"); - - if (WIFEXITED(cstatus) == 0) - tst_brkm (TBROK, cleanup, "receiver exited abnormally"); - - if (WEXITSTATUS(cstatus) != 0) - tst_brkm (TBROK, cleanup, "receiver exited with status %d", - WEXITSTATUS(cstatus)); - - /* - * If we get here, the child has exited normally, and we should - * decrement the child count. If the child_count reaches 0, we - * should exit. - */ - - sun.buf = &s_ds; - tst_resm (semctl(sender_semid, 0, IPC_STAT, sun) == -1 ? TFAIL : TPASS, - "semctl IPC_STAT"); - - print_semid_ds(&s_ds, 0600); - - if (--child_count != 0) { - signal_was_sigchld = 1; - return; - } - - cleanup (); -} - -void -cleanup() -{ - - /* - * If we're the sender, and it exists, remove the message queue. - */ - if (child_pid != 0 && sender_semid != -1) { - tst_resm (semctl(sender_semid, 0, IPC_RMID) == -1 - ? TFAIL : TPASS, "semctl IPC_RMID"); - } - tst_exit (); -} - -void -print_semid_ds(struct semid_ds *sp, mode_t mode) -{ - uid_t uid = geteuid(); - gid_t gid = getegid(); - - printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n", - (int)sp->sem_perm.uid, (int)sp->sem_perm.gid, - (int)sp->sem_perm.cuid, (int)sp->sem_perm.cgid, - sp->sem_perm.mode & 0777); - - printf("nsems %u\n", sp->sem_nsems); - - printf("otime: %s", ctime(&sp->sem_otime)); - printf("ctime: %s", ctime(&sp->sem_ctime)); - - /* - * Sanity check a few things. - */ - - tst_resm (sp->sem_perm.uid != uid || sp->sem_perm.cuid != uid - ? TFAIL : TPASS, "uid matches"); - - tst_resm (sp->sem_perm.gid != gid || sp->sem_perm.cgid != gid - ? TFAIL : TPASS, "gid matches"); - - tst_resm ((sp->sem_perm.mode & 0777) != mode - ? TFAIL : TPASS, "mode matches"); -} - -void -waiter() -{ - struct sembuf s; - int semid; - - tst_resm ((semid = semget(semkey, 1, 0)) == -1 ? TFAIL : TPASS, - "waiter: semget"); - - /* - * Attempt to acquire the semaphore. - */ - s.sem_num = 0; - s.sem_op = -1; - s.sem_flg = SEM_UNDO; - - tst_resm (semop(semid, &s, 1) == -1 ? TFAIL : TPASS, - "waiter: semop -1"); - - printf("WOO! GOT THE SEMAPHORE!\n"); - sleep(1); - - /* - * Release the semaphore and exit. - */ - s.sem_num = 0; - s.sem_op = 1; - s.sem_flg = SEM_UNDO; - - tst_resm (semop(semid, &s, 1) == -1 ? TFAIL : TPASS, - "waiter: semop +1"); - - /* Allow parent to receive message before getting SIGCHLD. */ - sleep (1); - exit(0); -} |