71 lines
1.2 KiB
C
71 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) International Business Machines Corp., 2001
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*
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* msgrcv error test for EINTR.
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*/
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <signal.h>
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#include <stdlib.h>
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#include "tst_test.h"
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#include "tst_safe_sysv_ipc.h"
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#include "libnewipc.h"
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static key_t msgkey;
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static int queue_id = -1;
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static struct buf {
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long type;
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char mtext[MSGSIZE];
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} rcv_buf;
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static void sighandler(int sig)
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{
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if (sig == SIGHUP)
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return;
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else
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_exit(TBROK);
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}
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static void verify_msgrcv(void)
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{
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TST_EXP_FAIL2(msgrcv(queue_id, &rcv_buf, MSGSIZE, 1, 0), EINTR,
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"msgrcv(%i, %p, %d, 1, 0)", queue_id, &rcv_buf, MSGSIZE);
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}
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static void do_test(void)
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{
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int pid;
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pid = SAFE_FORK();
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if (pid == 0) {
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verify_msgrcv();
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exit(0);
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}
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TST_PROCESS_STATE_WAIT(pid, 'S', 0);
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SAFE_KILL(pid, SIGHUP);
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tst_reap_children();
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}
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static void setup(void)
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{
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msgkey = GETIPCKEY();
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queue_id = SAFE_MSGGET(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW);
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SAFE_SIGNAL(SIGHUP, sighandler);
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}
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static void cleanup(void)
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{
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if (queue_id != -1)
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SAFE_MSGCTL(queue_id, IPC_RMID, NULL);
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}
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static struct tst_test test = {
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.setup = setup,
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.cleanup = cleanup,
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.test_all = do_test,
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.needs_tmpdir = 1,
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.forks_child = 1,
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};
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