1 files changed, 138 insertions, 0 deletions

diff --git a/src/regress/lib/libc/sys/t_getpid.c b/src/regress/lib/libc/sys/t_getpid.c
new file mode 100644
index 0000000000..0dbf7f43fe
--- /dev/null
+++ b/src/regress/lib/libc/sys/t_getpid.c
@@ -0,0 +1,138 @@
+/*      $OpenBSD: t_getpid.c,v 1.1.1.1 2019/11/19 19:57:03 bluhm Exp $  */
+/* $NetBSD: t_getpid.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION OR CONTRIBUTORS
+ * 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 "macros.h"
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_getpid.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
+
+#include <sys/wait.h>
+
+#include <stdlib.h>
+#include <pthread.h>
+#include <unistd.h>
+
+#include "atf-c.h"
+
+static int       maxiter = 10;
+static void     *threadfunc(void *);
+
+static void *
+threadfunc(void *arg)
+{
+        *(pid_t *)arg = getpid();
+
+        return NULL;
+}
+
+ATF_TC(getpid_process);
+ATF_TC_HEAD(getpid_process, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test getpid(2) with processes");
+}
+
+ATF_TC_BODY(getpid_process, tc)
+{
+        pid_t ppid, fpid, cpid, tpid, wpid;
+        int i, sta;
+
+        for (i = 0; i < maxiter; i++) {
+
+                tpid = getpid();
+                fpid = fork();
+
+                ATF_REQUIRE(fpid >= 0);
+
+                if (fpid == 0) {
+
+                        cpid = getpid();
+                        ppid = getppid();
+
+                        if (tpid != ppid)
+                                _exit(EXIT_FAILURE);
+
+                        if (cpid == ppid)
+                                _exit(EXIT_FAILURE);
+
+                        if (tpid == fpid)
+                                _exit(EXIT_FAILURE);
+
+                        _exit(EXIT_SUCCESS);
+                }
+
+                wpid = wait(&sta);
+
+                if (wpid != fpid)
+                        atf_tc_fail("PID mismatch");
+
+                ATF_REQUIRE(WIFEXITED(sta) != 0);
+
+                if (WEXITSTATUS(sta) != EXIT_SUCCESS)
+                        atf_tc_fail("PID mismatch");
+        }
+}
+
+ATF_TC(getpid_thread);
+ATF_TC_HEAD(getpid_thread, tc)
+{
+        atf_tc_set_md_var(tc, "descr", "Test getpid(2) with threads");
+}
+
+ATF_TC_BODY(getpid_thread, tc)
+{
+        pid_t pid, tpid;
+        pthread_t tid;
+        int i, rv;
+
+        for (i = 0; i < maxiter; i++) {
+
+                pid = getpid();
+
+                rv = pthread_create(&tid, NULL, threadfunc, &tpid);
+                ATF_REQUIRE(rv == 0);
+
+                rv = pthread_join(tid, NULL);
+                ATF_REQUIRE(rv == 0);
+
+                if (pid != tpid)
+                        atf_tc_fail("Unequal PIDs");
+        }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+        ATF_TP_ADD_TC(tp, getpid_process);
+        ATF_TP_ADD_TC(tp, getpid_thread);
+
+        return atf_no_error();
+}