1 files changed, 118 insertions, 0 deletions
diff --git a/sbin/mknod/mknod.c b/sbin/mknod/mknod.c
new file mode 100644
index 0000000..a3050eb
--- /dev/null
+++ b/sbin/mknod/mknod.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kevin Fall.
+ *
+ * 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 the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1989, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mknod.c	8.1 (Berkeley) 6/5/93";
+#else
+static const char rcsid[] =
+    "$Id$";
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int
+main(argc, argv)
+	int argc;
+	char **argv;
+{
+	dev_t dev;
+	char *endp;
+	long major, minor;
+	mode_t mode;
+	int range_error;
+
+	if (argc != 5) {
+		(void)fprintf(stderr,
+		    "usage: mknod name [b | c] major minor\n");
+		exit(1);
+	}
+
+	mode = 0666;
+	if (argv[2][0] == 'c')
+		mode |= S_IFCHR;
+	else if (argv[2][0] == 'b')
+		mode |= S_IFBLK;
+	else {
+		(void)fprintf(stderr,
+		    "mknod: node must be type 'b' or 'c'\n");
+		exit(1);
+	}
+
+	errno = 0;
+	major = (long)strtoul(argv[3], &endp, 0);
+	if (endp == argv[3] || *endp != '\0') {
+		(void)fprintf(stderr,
+		    "mknod: %s: non-numeric major number\n", argv[3]);
+		exit(1);
+	}
+	range_error = errno;
+	errno = 0;
+	minor = (long)strtoul(argv[4], &endp, 0);
+	if (endp == argv[3] || *endp != '\0') {
+		(void)fprintf(stderr,
+		    "mknod: %s: non-numeric minor number\n", argv[4]);
+		exit(1);
+	}
+	range_error |= errno;
+	dev = makedev(major, minor);
+	if (range_error || major(dev) != major || minor(dev) != minor) {
+		(void)fprintf(stderr,
+		    "mknod: major or minor number too large\n");
+		exit(1);
+	}
+
+	if (mknod(argv[1], mode, dev) != 0) {
+		(void)fprintf(stderr,
+		    "mknod: %s: %s\n", argv[1], strerror(errno));
+		exit(1);
+	}
+	exit(0);
+}