test rfork with shared fds

2 files changed, 46 insertions, 0 deletions

diff --git a/regress/sys/kern/rfork/rfsharefd/Makefile b/regress/sys/kern/rfork/rfsharefd/Makefile
new file mode 100644
index 00000000000..a6246575273
--- /dev/null
+++ b/regress/sys/kern/rfork/rfsharefd/Makefile
@@ -0,0 +1,5 @@
+#	$OpenBSD: Makefile,v 1.1 2002/02/17 05:44:07 art Exp $
+
+PROG=rfsharefd
+
+.include <bsd.regress.mk>
diff --git a/regress/sys/kern/rfork/rfsharefd/rfsharefd.c b/regress/sys/kern/rfork/rfsharefd/rfsharefd.c
new file mode 100644
index 00000000000..fdd6655ee7d
--- /dev/null
+++ b/regress/sys/kern/rfork/rfsharefd/rfsharefd.c
@@ -0,0 +1,41 @@
+/*	$OpenBSD: rfsharefd.c,v 1.1 2002/02/17 05:44:07 art Exp $	*/
+/*
+ * Written by Artur Grabowski <art@openbsd.org>, 2002 Public Domain.
+ */
+#include <sys/param.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <err.h>
+#include <fcntl.h>
+
+int
+main()
+{
+	int status;
+
+	/* Make sure that at least fd 0 is allocated. */
+	if (open("/dev/null", O_RDONLY) < 0)
+		err(1, "open(/dev/null)");
+
+	switch(rfork(RFPROC)) {
+	case -1:
+		err(1, "fork");
+	case 0:
+		if (close(0) < 0)
+			_exit(1);
+		_exit(0);
+	}
+
+	if (wait(&status) < 0)
+		err(1, "wait");
+
+	if (!WIFEXITED(status))
+		err(1, "child error");
+
+	if (close(0) == 0)
+		errx(1, "fd 0 not closed");
+
+	return WEXITSTATUS(status) != 0;
+}
\ No newline at end of file