diff options
Diffstat (limited to 'sysvipc')
| -rw-r--r-- | sysvipc/Makefile | 2 | ||||
| -rw-r--r-- | sysvipc/test-sysvmsg.c | 128 |
2 files changed, 130 insertions, 0 deletions
diff --git a/sysvipc/Makefile b/sysvipc/Makefile index 5f3479e4c4..73bb9cfaf6 100644 --- a/sysvipc/Makefile +++ b/sysvipc/Makefile @@ -30,6 +30,8 @@ routines := ftok \ semop semget semctl semtimedop \ shmat shmdt shmget shmctl +tests := test-sysvmsg + include ../Rules CFLAGS-msgrcv.c = -fexceptions -fasynchronous-unwind-tables diff --git a/sysvipc/test-sysvmsg.c b/sysvipc/test-sysvmsg.c new file mode 100644 index 0000000000..cd2c488120 --- /dev/null +++ b/sysvipc/test-sysvmsg.c @@ -0,0 +1,128 @@ +/* Basic tests for SYSV message queue functions. + Copyright (C) 2016 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> |