1 /* 2 * Copyright (c) 2015 Elvira Khabirova <lineprinter0 (at) gmail.com> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef HAVE_CONFIG_H 29 # include "config.h" 30 #endif 31 32 #include <sys/ipc.h> 33 #include <sys/msg.h> 34 #include <sys/stat.h> 35 36 #include "kernel_types.h" 37 38 #define text_string "STRACE_STRING" 39 #define msgsz sizeof(text_string) 40 41 int 42 main (void) 43 { 44 const long mtype = 0xdefaced; 45 struct { 46 kernel_long_t mtype; 47 char mtext[msgsz]; 48 } msg = { 49 .mtype = mtype, 50 .mtext = text_string 51 }; 52 int msqid = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU); 53 if (msqid == -1) 54 return 77; 55 if (msgsnd(msqid, &msg, msgsz, 0) == -1) 56 goto cleanup; 57 if (msgrcv(msqid, &msg, msgsz, mtype, 0) != msgsz) 58 goto cleanup; 59 if (msgctl(msqid, IPC_RMID, 0) == -1) 60 return 77; 61 return 0; 62 63 cleanup: 64 msgctl(msqid, IPC_RMID, 0); 65 return 77; 66 } 67
