A simple mmap regression test

3 files changed, 96 insertions, 2 deletions

diff --git a/regress/sys/kern/Makefile b/regress/sys/kern/Makefile
index f6f4888487e..c8dbbd3dfee 100644
--- a/regress/sys/kern/Makefile
+++ b/regress/sys/kern/Makefile
@@ -1,7 +1,7 @@
-#	$OpenBSD: Makefile,v 1.4 2001/01/29 02:05:54 niklas Exp $
+#	$OpenBSD: Makefile,v 1.5 2001/06/19 08:41:57 niklas Exp $
 #	$NetBSD: Makefile,v 1.2 1995/04/20 22:42:51 cgd Exp $
 
-SUBDIR+= execve
+SUBDIR+= execve mmap
 
 regress: _SUBDIRUSE
 
diff --git a/regress/sys/kern/mmap/Makefile b/regress/sys/kern/mmap/Makefile
new file mode 100644
index 00000000000..f2eb5c8dc01
--- /dev/null
+++ b/regress/sys/kern/mmap/Makefile
@@ -0,0 +1,11 @@
+#	$OpenBSD: Makefile,v 1.1 2001/06/19 08:41:59 niklas Exp $
+
+PROG=	mmaptest
+NOMAN=	noman, no way, man
+
+install:
+
+regress:
+	./mmaptest
+
+.include <bsd.prog.mk>
diff --git a/regress/sys/kern/mmap/mmaptest.c b/regress/sys/kern/mmap/mmaptest.c
new file mode 100644
index 00000000000..99ad04c9c87
--- /dev/null
+++ b/regress/sys/kern/mmap/mmaptest.c
@@ -0,0 +1,83 @@
+/*	$Id: mmaptest.c,v 1.1 2001/06/19 08:41:59 niklas Exp $	*/
+
+/*
+ * Copyright (c) 2001 Niklas Hallqvist.  All rights reserverd.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Theo de Raadt.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <sys/types.h>
+#include <sys/mman.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#define TEMPL "test-fileXXXXXXXXXX"
+#define MAGIC 0x1234
+
+int
+main(int argc, char **argv)
+{
+	int fd;
+	void *v;
+	int i;
+	ssize_t n;
+	static char nm[] = TEMPL;
+	off_t sz;
+
+	fd = mkstemp(nm);
+	if (fd == -1)
+		err(1, "mkstemp");
+	sz = sysconf(_SC_PAGESIZE);
+	if (sz == -1)
+		err(1, "sysconf");
+	if (ftruncate(fd, sz) == -1)
+		err (1, "ftruncate");
+	v = mmap(0, sz, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	if (v == MAP_FAILED)
+		err(1, "mmap");
+	*(int *)v = MAGIC;
+	if (msync(v, sz, MS_SYNC) == -1)
+		err(1, "msync");
+	if (munmap(v, sz) == -1)
+		err(1, "munmap");
+	if (close(fd) == -1)
+		err(1, "close");
+	fd = open(nm, O_RDONLY);
+	if (fd == -1)
+		err(1, "open");
+	if (unlink(nm) == -1)
+		err(1, "unlink");
+	n = read(fd, &i, sizeof i);
+	if (n == -1)
+		err(1, "read");
+	if (n != sizeof i)
+		errx(1, "short read");
+	if (close(fd) == -1)
+		err(1, "close");
+	exit(i != MAGIC);
+}