/* * Copyright (c) 2015 Elvira Khabirova * Copyright (c) 2015-2016 Dmitry V. Levin * Copyright (c) 2015-2018 The strace developers. * 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. */ #include "tests.h" #include #include #include #include #include #include #include #define text_string "STRACE_STRING" #define msgsz sizeof(text_string) static int msqid = -1; #if XLAT_RAW # define str_ipc_creat "0x200" # define str_ipc_private "0" # define str_ipc_rmid "0" # define str_ipc_64 "0x100" #elif XLAT_VERBOSE # define str_ipc_creat "0x200 /\\* IPC_CREAT \\*/" # define str_ipc_private "0 /\\* IPC_PRIVATE \\*/" # define str_ipc_rmid "0 /\\* IPC_RMID \\*/" # define str_ipc_64 "0x100 /\\* IPC_64 \\*/" #else # define str_ipc_creat "IPC_CREAT" # define str_ipc_private "IPC_PRIVATE" # define str_ipc_rmid "IPC_RMID" # define str_ipc_64 "IPC_64" #endif static int cleanup(void) { if (msqid != -1) { int rc = msgctl(msqid, IPC_RMID, 0); printf("msgctl\\(%d, (%s\\|)?%s, NULL\\) = 0\n", msqid, str_ipc_64, str_ipc_rmid); msqid = -1; if (rc == -1) return 77; puts("\\+\\+\\+ exited with 0 \\+\\+\\+"); } return 0; } int sys_msgrcv(int msqid, void *msgp, size_t sz, kernel_long_t msgtyp, int msgflg) { #if defined __x86_64__ && defined __ILP32__ return syscall(__NR_msgrcv, msqid, msgp, sz, msgtyp, msgflg); #else return msgrcv(msqid, msgp, sz, msgtyp, msgflg); #endif } int main(void) { /* mtype has to be positive */ const kernel_long_t mtype = (kernel_long_t) 0x7facefed5adc0dedULL; struct { kernel_long_t mtype; char mtext[msgsz]; } msg = { .mtype = mtype, .mtext = text_string }; msqid = msgget(IPC_PRIVATE, IPC_CREAT | S_IRWXU); if (msqid == -1) perror_msg_and_skip("msgget"); printf("msgget\\(%s, %s\\|0700\\) = %d\n", str_ipc_private, str_ipc_creat, msqid); typedef void (*atexit_func)(void); atexit((atexit_func) cleanup); printf("msgsnd\\(%d, \\{%lld, \"" text_string "\\\\0\"\\}, 14, 0\\)" " = 0\n", msqid, (long long) mtype); if (msgsnd(msqid, &msg, msgsz, 0) == -1) perror_msg_and_skip("msgsnd"); if (sys_msgrcv(msqid, &msg, msgsz, -mtype, 0) != msgsz) perror_msg_and_skip("msgrcv"); printf("msgrcv\\(%d, \\{%lld, \"" text_string "\\\\0\"\\}, 14, %lld" ", 0\\) = 14\n", msqid, (long long) mtype, -(long long) mtype); return cleanup(); }