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/*
* Copyright (c) 1993 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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.
*
* from: Utah $Hdr: vnconfig.c 1.1 93/12/15$
*
* @(#)vnconfig.c 8.1 (Berkeley) 12/15/93
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/fcntl.h>
#include <dev/vndioctl.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <util.h>
#define VND_CONFIG 1
#define VND_UNCONFIG 2
int verbose = 0;
void usage __P((void));
int config __P((char *, char *, int));
int
main(argc, argv)
int argc;
char **argv;
{
int ch, rv, action = VND_CONFIG;
while ((ch = getopt(argc, argv, "cuv")) != -1) {
switch (ch) {
case 'c':
action = VND_CONFIG;
break;
case 'u':
action = VND_UNCONFIG;
break;
case 'v':
verbose = 1;
break;
default:
case '?':
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (action == VND_CONFIG && argc == 2)
rv = config(argv[0], argv[1], action);
else if (action == VND_UNCONFIG && argc == 1)
rv = config(argv[0], NULL, action);
else
usage();
exit(rv);
}
int
config(dev, file, action)
char *dev;
char *file;
int action;
{
struct vnd_ioctl vndio;
FILE *f;
char *rdev;
int rv;
if (opendev(dev, O_RDWR, OPENDEV_PART, &rdev) < 0)
err(4, "%s", rdev);
f = fopen(rdev, "rw");
if (f == NULL) {
warn(rdev);
return (1);
}
vndio.vnd_file = file;
/*
* Clear (un-configure) the device
*/
if (action == VND_UNCONFIG) {
rv = ioctl(fileno(f), VNDIOCCLR, &vndio);
if (rv)
warn("VNDIOCCLR");
else if (verbose)
printf("%s: cleared\n", dev);
}
/*
* Configure the device
*/
if (action == VND_CONFIG) {
rv = ioctl(fileno(f), VNDIOCSET, &vndio);
if (rv)
warn("VNDIOCSET");
else if (verbose)
printf("%s: %d bytes on %s\n", dev, vndio.vnd_size,
file);
}
fclose(f);
fflush(stdout);
return (rv < 0);
}
void
usage()
{
(void)fprintf(stderr, "%s%s",
"usage: vnconfig -c [-v] rawdev regular-file\n",
" vnconfig -u [-v] rawdev\n");
exit(1);
}
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