From 6caa909fd9e45acb6d73afb9a18980d6baecfe66 Mon Sep 17 00:00:00 2001
From: green <green>
Date: Thu, 9 Oct 2003 16:43:59 +0000
Subject: [PATCH] New test, to check that device nodes are created and then
 visible correctly.

---
 lustre/tests/cmknod.c | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 lustre/tests/cmknod.c

diff --git a/lustre/tests/cmknod.c b/lustre/tests/cmknod.c
new file mode 100644
index 0000000..fa42e2b
--- /dev/null
+++ b/lustre/tests/cmknod.c
@@ -0,0 +1,94 @@
+/* Simple test to check that device nodes are correctly created and visible */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#define TEST_MINOR 120
+#define TEST_MAJOR 25
+
+void usage(char *prog)
+{
+	fprintf(stderr, "usage: %s <filename>\n", prog);
+	exit(1);
+}
+
+int main( int argc, char **argv)
+{
+	char *prog = argv[0];
+	char *filename = argv[1];
+	int rc;
+	struct stat st;
+	dev_t device = makedev(TEST_MAJOR, TEST_MINOR);
+
+	if (argc != 2) 
+		usage(prog);
+
+	unlink(filename);
+	/* First try block devices */
+	rc = mknod(filename, 0700 | S_IFBLK, device);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: mknod(%s) failed: rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 2;
+	}
+
+	rc = stat(filename, &st);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: stat(%s) failed: rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 3;
+	}
+	if ( st.st_rdev != device) {
+		fprintf(stderr, "%s: created device other than requested: (%d,%d) instead of (%d,%d)\n", prog, major(st.st_rdev),minor(st.st_rdev),major(device),minor(device));
+		return 4;
+	}
+	if ( ! (st.st_mode | S_IFBLK) ) {
+		fprintf(stderr, "%s: created device of different type. Requested block device, got mode %o\n", prog, st.st_mode);
+		return 5;
+	}
+
+	rc = unlink(filename);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: Cannot unlink created device %s, rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 6;
+	}
+
+	/* Second try char devices */
+	rc = mknod(filename, 0700 | S_IFCHR, device);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: mknod(%s) failed: rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 7;
+	}
+
+	rc = stat(filename, &st);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: stat(%s) failed: rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 8;
+	}
+	if ( st.st_rdev != device) {
+		fprintf(stderr, "%s: created device other than requested: (%d,%d) instead of (%d,%d)\n", prog, major(st.st_rdev),minor(st.st_rdev),major(device),minor(device));
+		return 9;
+	}
+	if ( ! (st.st_mode | S_IFCHR) ) {
+		fprintf(stderr, "%s: created device of different type. Requested char device, got mode %o\n", prog, st.st_mode);
+		return 10;
+	}
+
+	rc = unlink(filename);
+	if ( rc < 0 ) {
+		fprintf(stderr, "%s: Cannot unlink created device %s, rc %d: %s\n",
+			prog, filename, errno, strerror(errno));
+		return 11;
+	}
+
+	printf("%s: device nodes created correctly\n", prog);
+
+	return 0;
+}
-- 
1.8.3.1