xref: /freebsd/lib/libc/gen/devname.3 (revision 25bb73e063c17cd9048cf60100dbc0ac5177e94a)
158f0484fSRodney W. Grimes.\" Copyright (c) 1993
258f0484fSRodney W. Grimes.\"	The Regents of the University of California.  All rights reserved.
358f0484fSRodney W. Grimes.\"
458f0484fSRodney W. Grimes.\" Redistribution and use in source and binary forms, with or without
558f0484fSRodney W. Grimes.\" modification, are permitted provided that the following conditions
658f0484fSRodney W. Grimes.\" are met:
758f0484fSRodney W. Grimes.\" 1. Redistributions of source code must retain the above copyright
858f0484fSRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer.
958f0484fSRodney W. Grimes.\" 2. Redistributions in binary form must reproduce the above copyright
1058f0484fSRodney W. Grimes.\"    notice, this list of conditions and the following disclaimer in the
1158f0484fSRodney W. Grimes.\"    documentation and/or other materials provided with the distribution.
1258f0484fSRodney W. Grimes.\" 3. All advertising materials mentioning features or use of this software
1358f0484fSRodney W. Grimes.\"    must display the following acknowledgement:
1458f0484fSRodney W. Grimes.\"	This product includes software developed by the University of
1558f0484fSRodney W. Grimes.\"	California, Berkeley and its contributors.
1658f0484fSRodney W. Grimes.\" 4. Neither the name of the University nor the names of its contributors
1758f0484fSRodney W. Grimes.\"    may be used to endorse or promote products derived from this software
1858f0484fSRodney W. Grimes.\"    without specific prior written permission.
1958f0484fSRodney W. Grimes.\"
2058f0484fSRodney W. Grimes.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
2158f0484fSRodney W. Grimes.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
2258f0484fSRodney W. Grimes.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2358f0484fSRodney W. Grimes.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2458f0484fSRodney W. Grimes.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2558f0484fSRodney W. Grimes.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2658f0484fSRodney W. Grimes.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2758f0484fSRodney W. Grimes.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2858f0484fSRodney W. Grimes.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2958f0484fSRodney W. Grimes.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
3058f0484fSRodney W. Grimes.\" SUCH DAMAGE.
3158f0484fSRodney W. Grimes.\"
320014b4c0SPeter Wemm.\"     @(#)devname.3	8.2 (Berkeley) 4/29/95
337f3dea24SPeter Wemm.\" $FreeBSD$
3458f0484fSRodney W. Grimes.\"
350014b4c0SPeter Wemm.Dd April 29, 1995
3658f0484fSRodney W. Grimes.Dt DEVNAME 3
3758f0484fSRodney W. Grimes.Os BSD 4.4
3858f0484fSRodney W. Grimes.Sh NAME
3958f0484fSRodney W. Grimes.Nm devname
4058f0484fSRodney W. Grimes.Nd get device name
4125bb73e0SAlexey Zelkin.Sh LIBRARY
4225bb73e0SAlexey Zelkin.Lb libc
4358f0484fSRodney W. Grimes.Sh SYNOPSIS
4458f0484fSRodney W. Grimes.Fd #include <stdlib.h>
4558f0484fSRodney W. Grimes.Ft char *
4658f0484fSRodney W. Grimes.Fn devname "dev_t dev" "mode_t type"
4758f0484fSRodney W. Grimes.Sh DESCRIPTION
4858f0484fSRodney W. GrimesThe
4958f0484fSRodney W. Grimes.Fn devname
5058f0484fSRodney W. Grimesfunction returns a pointer to the name of the block or character
5158f0484fSRodney W. Grimesdevice in
5258f0484fSRodney W. Grimes.Dq Pa /dev
5358f0484fSRodney W. Grimeswith a device number of
5458f0484fSRodney W. Grimes.Fa dev ,
5558f0484fSRodney W. Grimesand a file type matching the one encoded in
5658f0484fSRodney W. Grimes.Fa type
5758f0484fSRodney W. Grimeswhich must be one of S_IFBLK or S_IFCHR.
5858f0484fSRodney W. GrimesIf no device matches the specified values, or no information is
596b288cfaSBruce Evansavailable, NULL is returned.
606b288cfaSBruce Evans.Pp
616b288cfaSBruce EvansThe traditional display for applications when no device is
626b288cfaSBruce Evansfound is the string
636b288cfaSBruce Evans.Dq ?? .
6458f0484fSRodney W. Grimes.Sh SEE ALSO
6558f0484fSRodney W. Grimes.Xr stat 2 ,
6658f0484fSRodney W. Grimes.Xr dev_mkdb 8
6758f0484fSRodney W. Grimes.Sh HISTORY
6858f0484fSRodney W. GrimesThe
69bf5a138eSMike Pritchard.Fn devname
7058f0484fSRodney W. Grimesfunction call appeared in
7158f0484fSRodney W. Grimes.Bx 4.4 .
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