2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
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11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * $FreeBSD: src/lib/libc/gen/devname.c,v 1.2.2.2 2001/07/31 20:10:19 tmm Exp $
31 * @(#)devname.c 8.2 (Berkeley) 4/29/95
34 #include "namespace.h"
35 #include <sys/types.h>
37 #include <sys/param.h>
38 #include <sys/sysctl.h>
45 #include "un-namespace.h"
48 devname_r(dev_t dev
, mode_t type
, char *buf
, size_t len
)
52 if (sysctlbyname("kern.devname", buf
, &n
, &dev
, sizeof(dev
)) == 0)
55 /* Just format it if failed to get its name */
56 snprintf(buf
, len
, "#%c%d:0x%x",
57 (type
& S_IFMT
) == S_IFCHR
? 'C' : 'B',
58 major(dev
), minor(dev
));
64 devname(dev_t dev
, mode_t type
)
66 static char buf
[MAXPATHLEN
];
68 strlcpy(buf
, devname_r(dev
, type
, buf
, sizeof(buf
)), sizeof(buf
));