Test rfork(RFMEM)

2 files changed, 54 insertions, 0 deletions

diff --git a/regress/sys/kern/rfork/rfmem/Makefile b/regress/sys/kern/rfork/rfmem/Makefile
new file mode 100644
index 00000000000..3e2df82ce58
--- /dev/null
+++ b/regress/sys/kern/rfork/rfmem/Makefile
@@ -0,0 +1,5 @@
+#	$OpenBSD: Makefile,v 1.1 2002/02/17 05:10:40 art Exp $
+
+PROG=rfmem
+
+.include <bsd.regress.mk>
diff --git a/regress/sys/kern/rfork/rfmem/rfmem.c b/regress/sys/kern/rfork/rfmem/rfmem.c
new file mode 100644
index 00000000000..5dbf96f7921
--- /dev/null
+++ b/regress/sys/kern/rfork/rfmem/rfmem.c
@@ -0,0 +1,49 @@
+/*	$OpenBSD: rfmem.c,v 1.1 2002/02/17 05:10:40 art Exp $	*/
+/*
+ * Written by Artur Grabowski <art@openbsd.org>, 2002 Public Domain.
+ */
+#include <sys/param.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <err.h>
+
+#define MAGIC "inherited"
+
+int
+main()
+{
+	void *map;
+	int page_size;
+	int status;
+
+	page_size = getpagesize();
+
+	if ((map = mmap(NULL, page_size, PROT_READ|PROT_WRITE, MAP_ANON,
+	    -1, 0)) == MAP_FAILED)
+		err(1, "mmap");
+
+	memset(map, 0, sizeof(MAGIC));
+
+	switch(rfork(RFFDG|RFPROC|RFMEM)) {
+	case -1:
+		err(1, "fork");
+	case 0:
+		memcpy(map, MAGIC, sizeof(MAGIC));
+		_exit(0);
+	}
+
+	if (wait(&status) < 0)
+		err(1, "wait");
+
+	if (!WIFEXITED(status))
+		err(1, "child error");
+
+	if (memcmp(map, MAGIC, sizeof(MAGIC)) != 0)
+		return 1;
+
+	return WEXITSTATUS(status) != 0;
+}
\ No newline at end of file