/*
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* Check decoding of ipc syscall.
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*
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* Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <asm/unistd.h>
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#if defined __NR_ipc && defined HAVE_LINUX_IPC_H
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# include <errno.h>
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# include <stdio.h>
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# include <unistd.h>
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# include <linux/ipc.h>
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# ifndef SEMCTL
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# define SEMCTL 3
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# endif
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# ifndef MSGRCV
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# define MSGRCV 12
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# endif
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static int
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ipc_call(const unsigned short version, const unsigned short call,
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long a1, long a2, long a3, long a4, long a5)
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{
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const unsigned long val =
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(unsigned long) 0xfacefeed00000000ULL |
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(unsigned int) version << 16 |
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call;
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return syscall(__NR_ipc, val, a1, a2, a3, a4, a5);
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}
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static int
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ipc_call0(const unsigned short version, const unsigned short call)
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{
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int rc = ipc_call(version, call, 0, 0, 0, 0, 0);
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int saved_errno = errno;
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printf("ipc(");
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if (version)
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printf("%hu<<16|", version);
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errno = saved_errno;
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printf("%hu, 0, 0, 0, 0%s) = %d %s (%m)\n", call,
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# ifdef __s390__
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"",
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# else
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", 0",
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# endif
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rc, errno2name());
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return rc;
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}
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int
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main(void)
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{
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void *const efault = tail_alloc(1) + 1;
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int rc = ipc_call(0, SEMCTL, 0, 0, 0, (long) efault, 0);
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if (rc != -1 || EFAULT != errno)
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perror_msg_and_skip("ipc");
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printf("semctl(0, 0, IPC_RMID, %p) = -1 EFAULT (%m)\n", efault);
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unsigned short call;
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for (call = 0; call <= 40; call += 10) {
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ipc_call0(0, call);
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ipc_call0(42, call);
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}
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rc = ipc_call(42, SEMCTL, 0, 0, 0, (long) efault, 0);
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int test_version = EFAULT == errno;
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if (test_version)
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printf("semctl(0, 0, IPC_RMID, %p) = %d %s (%m)\n",
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efault, rc, errno2name());
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else
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printf("ipc(42<<16|SEMCTL, 0, 0, 0, %p) = %d %s (%m)\n",
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efault, rc, errno2name());
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if (test_version) {
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const int msqid = -2;
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const long msgsz = -3;
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const long msgtyp = 0;
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rc = ipc_call(1, MSGRCV,
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msqid, msgsz, IPC_NOWAIT, (long) efault, msgtyp);
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printf("msgrcv(%d, %p, %lu, %ld, IPC_NOWAIT) = %d %s (%m)\n",
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msqid, efault, msgsz, msgtyp, rc, errno2name());
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}
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puts("+++ exited with 0 +++");
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return 0;
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}
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#else
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SKIP_MAIN_UNDEFINED("__NR_ipc && HAVE_LINUX_IPC_H")
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#endif
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