freebsd-dev/stand/libsa/dev.c
Warner Losh dc472f6702 stand: Add devformat to return formatted string for a device
Use dv_fmtdev to return a formatted string for a device. If this is a
null pointer, return the device name and unit followed by a colon (eg
disk3:).

Sponsored by:		Netflix
Reviewed by:		tsoome (prior version)
Differential Revision:	https://reviews.freebsd.org/D35916
2022-08-11 10:27:16 -06:00

70 lines
2.2 KiB
C

/* $NetBSD: dev.c,v 1.4 1994/10/30 21:48:23 cgd Exp $ */
/*-
* Copyright (c) 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.
* 3. 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.
*
* @(#)dev.c 8.1 (Berkeley) 6/11/93
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/reboot.h>
#include "stand.h"
int
nodev(void)
{
return (ENXIO);
}
void
nullsys(void)
{
}
/* ARGSUSED */
int
noioctl(struct open_file *f __unused, u_long cmd __unused, void *data __unused)
{
return (EINVAL);
}
char *
devformat(struct devdesc *d)
{
static char name[DEV_DEVLEN];
if (d->d_dev->dv_fmtdev != NULL)
return (d->d_dev->dv_fmtdev(d));
snprintf(name, sizeof(name), "%s%d:", d->d_dev->dv_name, d->d_unit);
return (name);
}