1 files changed, 77 insertions, 0 deletions
diff --git a/lib/libc/gen/devname.c b/lib/libc/gen/devname.c
new file mode 100644
index 0000000..21e46e6
--- /dev/null
+++ b/lib/libc/gen/devname.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 1989, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ * 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)devname.c	8.2 (Berkeley) 4/29/95";
+#endif /* LIBC_SCCS and not lint */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/sysctl.h>
+
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+
+char *
+devname_r(dev_t dev, mode_t type, char *buf, int len)
+{
+	int i;
+	size_t j;
+	char *r;
+
+	if ((type & S_IFMT) == S_IFCHR) {
+		j = len;
+		i = sysctlbyname("kern.devname", buf, &j, &dev, sizeof (dev));
+		if (i == 0)
+		    return (buf);
+	}
+
+	/* Finally just format it */
+	if (dev == NODEV)
+		r = "#NODEV";
+	else 
+		r = "#%c:%d:0x%x";
+	snprintf(buf, len, r,
+	    (type & S_IFMT) == S_IFCHR ? 'C' : 'B', major(dev), minor(dev));
+	return (buf);
+}
+
+char *
+devname(dev_t dev, mode_t type)
+{
+	static char buf[SPECNAMELEN + 1];
+
+	return(devname_r(dev, type, buf, sizeof(buf)));
+}