Move Art's fdescfs regress to a now more appropriate place

3 files changed, 52 insertions, 1 deletions

diff --git a/regress/sys/dev/Makefile b/regress/sys/dev/Makefile
index 364bf9269dd..d84da9c709e 100644
--- a/regress/sys/dev/Makefile
+++ b/regress/sys/dev/Makefile
@@ -1,5 +1,6 @@
-#	$OpenBSD: Makefile,v 1.2 2003/07/31 15:56:32 deraadt Exp $
+#	$OpenBSD: Makefile,v 1.3 2005/12/07 01:43:39 pedro Exp $
 
 SUBDIR+= audio
+SUBDIR+= fdesc
 
 .include <bsd.subdir.mk>
diff --git a/regress/sys/dev/fdesc/Makefile b/regress/sys/dev/fdesc/Makefile
new file mode 100644
index 00000000000..dcb1da1a900
--- /dev/null
+++ b/regress/sys/dev/fdesc/Makefile
@@ -0,0 +1,7 @@
+#	$OpenBSD: Makefile,v 1.1 2005/12/07 01:43:39 pedro Exp $
+
+SUBDIR=confuse
+
+install:
+
+.include <bsd.subdir.mk>
diff --git a/regress/sys/dev/fdesc/confuse.c b/regress/sys/dev/fdesc/confuse.c
new file mode 100644
index 00000000000..e61b242a844
--- /dev/null
+++ b/regress/sys/dev/fdesc/confuse.c
@@ -0,0 +1,43 @@
+/*	$OpenBSD: confuse.c,v 1.1 2005/12/07 01:43:39 pedro Exp $	*/
+
+/*
+ * Written by Artur Grabowski <art@openbsd.org> in 2002. Public Domain.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <err.h>
+#include <fcntl.h>
+#include <errno.h>
+
+int
+main(int argc, char *argv[])
+{
+	char fname[64];
+	int fd, newfd;
+
+	if ((fd = open("/dev/null", O_RDONLY)) < 0)
+		err(1, "open(/dev/null)");
+
+	/* Try to confuse fdescfs by making it open into itself. */
+	close(fd);
+
+	snprintf(fname, sizeof(fname), "/dev/fd/%d", fd);
+
+	if ((newfd = open(fname, O_RDONLY)) == fd)
+		errx(1, "open of %s to %d succeeded, beware.", fname, fd);
+
+	if (newfd >= 0)
+		errx(1, "open(%s) gave us the unexpected %d", fname, fd);
+
+	if (errno == ENOENT)
+		err(1, "open(%s)", fname);
+
+	if (errno == ENXIO)
+		errx(1, "no support for fdesc in kernel"); 
+
+	warn("errno was (%d)", errno);
+
+	return 0;
+}