| /* Basic tests for SYSV message queue functions. |
| Copyright (C) 2016-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/ipc.h> |
| #include <sys/msg.h> |
| |
| #include <support/support.h> |
| #include <support/check.h> |
| #include <support/temp_file.h> |
| |
| #define TEXTSIZE 32 |
| struct msgbuf_t |
| { |
| #ifdef _GNU_SOURCE |
| __syscall_slong_t type; |
| #else |
| long type; |
| #endif |
| char buf[TEXTSIZE]; |
| }; |
| |
| #define MSGTYPE 0x01020304 |
| #define MSGDATA "0123456789" |
| |
| /* These are for the temporary file we generate. */ |
| static char *name; |
| static int msqid; |
| |
| static void |
| remove_msq (void) |
| { |
| /* Enforce message queue removal in case of early test failure. |
| Ignore error since the msgq may already have being removed. */ |
| msgctl (msqid, IPC_RMID, NULL); |
| } |
| |
| static void |
| do_prepare (int argc, char *argv[]) |
| { |
| int fd = create_temp_file ("tst-sysvmsg.", &name); |
| if (fd == -1) |
| FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno); |
| } |
| |
| #define PREPARE do_prepare |
| |
| /* It is not an extensive test, but rather a functional one aimed to check |
| correct parameter passing on kernel. */ |
| |
| #define MSGQ_MODE 0644 |
| |
| static int |
| do_test (void) |
| { |
| atexit (remove_msq); |
| |
| key_t key = ftok (name, 'G'); |
| if (key == -1) |
| FAIL_EXIT1 ("ftok failed"); |
| |
| msqid = msgget (key, MSGQ_MODE | IPC_CREAT); |
| if (msqid == -1) |
| { |
| if (errno == ENOSYS) |
| FAIL_UNSUPPORTED ("msgget not supported"); |
| FAIL_EXIT1 ("msgget failed (errno=%d)", errno); |
| } |
| |
| /* Get message queue kernel information and do some sanity checks. */ |
| struct msqid_ds msginfo; |
| if (msgctl (msqid, IPC_STAT, &msginfo) == -1) |
| FAIL_EXIT1 ("msgctl with IPC_STAT failed (errno=%d)", errno); |
| |
| if (msginfo.msg_perm.__key != key) |
| FAIL_EXIT1 ("msgid_ds::msg_perm::key (%d) != %d", |
| (int) msginfo.msg_perm.__key, (int) key); |
| if (msginfo.msg_perm.mode != MSGQ_MODE) |
| FAIL_EXIT1 ("msgid_ds::msg_perm::mode (%o) != %o", |
| msginfo.msg_perm.mode, MSGQ_MODE); |
| if (msginfo.msg_qnum != 0) |
| FAIL_EXIT1 ("msgid_ds::msg_qnum (%lu) != 0", |
| (long unsigned) msginfo.msg_qnum); |
| |
| /* Check if last argument (IPC_NOWAIT) is correctly handled. */ |
| struct msgbuf_t msg2rcv = { 0 }; |
| if (msgrcv (msqid, &msg2rcv, sizeof (msg2rcv.buf), MSGTYPE, |
| IPC_NOWAIT) == -1 |
| && errno != ENOMSG) |
| FAIL_EXIT1 ("msgrcv failed (errno=%d)", errno); |
| |
| struct msgbuf_t msg2snd = { MSGTYPE, MSGDATA }; |
| if (msgsnd (msqid, &msg2snd, sizeof (msg2snd.buf), 0) == -1) |
| FAIL_EXIT1 ("msgsnd failed (errno=%d)", errno); |
| |
| if (msgrcv (msqid, &msg2rcv, sizeof (msg2rcv.buf), MSGTYPE, 0) == -1) |
| FAIL_EXIT1 ("msgrcv failed (errno=%d)", errno); |
| |
| int ret = 0; |
| if (strncmp (msg2snd.buf, msg2rcv.buf, TEXTSIZE) != 0) |
| ret = 1; |
| |
| if (msgctl (msqid, IPC_RMID, NULL) == -1) |
| FAIL_EXIT1 ("msgctl failed"); |
| |
| return ret; |
| } |
| |
| #include <support/test-driver.c> |