/* * Copyright (c) 2015 Elvira Khabirova * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include #include #include #include "kernel_types.h" #define text_string "STRACE_STRING" #define msgsz sizeof(text_string) int main (void) { const long mtype = 0xdefaced; struct { kernel_long_t mtype; char mtext[msgsz]; } msg = { .mtype = mtype, .mtext = text_string }; int msqid = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU); if (msqid == -1) return 77; if (msgsnd(msqid, &msg, msgsz, 0) == -1) goto cleanup; if (msgrcv(msqid, &msg, msgsz, mtype, 0) != msgsz) goto cleanup; if (msgctl(msqid, IPC_RMID, 0) == -1) return 77; return 0; cleanup: msgctl(msqid, IPC_RMID, 0); return 77; }