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Implement -m option to enable/disable slices.

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This commit is contained in:
Robert Nordier 1999-06-19 21:44:43 +00:00
parent fc2ff140c2
commit 5868a099d9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=48038
2 changed files with 22 additions and 8 deletions
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8
usr.sbin/boot0cfg/boot0cfg.8
View File

@ -22,7 +22,7 @@
.\" OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
.\" EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $Id: boot0cfg.8,v 1.2 1999/02/22 09:36:54 rnordier Exp $
.\" $Id: boot0cfg.8,v 1.3 1999/02/26 14:57:17 rnordier Exp $
.\"
.Dd February 21, 1999
.Dt BOOT0CFG 8
@ -36,6 +36,7 @@
.Op Fl b Ar boot0
.Op Fl d Ar drive
.Op Fl f Ar file
.Op Fl m Ar mask
.Op Fl o Ar options
.Op Fl t Ar ticks
.Ar disk
@ -89,6 +90,11 @@ is acceptable here.
Specify that a backup copy of the preexisting MBR should be written to
.Ar file .
This file is created if it does not exist, and truncated if it does.
.It Fl m Ar mask
Specify slices to be enabled/disabled, where
.Ar mask
is an integer between 0 (no slices enabled) and 0xf (all four slices
enabled).
.It Fl o Ar options
A comma-separated string of any of the following options may be
specified (with

22
usr.sbin/boot0cfg/boot0cfg.c
View File

@ -26,7 +26,7 @@
#ifndef lint
static const char rcsid[] =
"$Id: boot0cfg.c,v 1.2 1999/02/22 09:36:54 rnordier Exp $";
"$Id: boot0cfg.c,v 1.3 1999/02/26 14:57:17 rnordier Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -85,17 +85,17 @@ main(int argc, char *argv[])
const char *bpath, *fpath, *disk;
ssize_t n;
int B_flag, v_flag, o_flag;
int d_arg, t_arg;
int d_arg, m_arg, t_arg;
int o_and, o_or;
int fd, fd1, up, c, i;
bpath = "/boot/boot0";
fpath = NULL;
B_flag = v_flag = o_flag = 0;
d_arg = t_arg = -1;
d_arg = m_arg = t_arg = -1;
o_and = 0xff;
o_or = 0;
while ((c = getopt(argc, argv, "Bvb:d:f:o:t:")) != -1)
while ((c = getopt(argc, argv, "Bvb:d:f:m:o:t:")) != -1)
switch (c) {
case 'B':
B_flag = 1;
@ -112,6 +112,9 @@ main(int argc, char *argv[])
case 'f':
fpath = optarg;
break;
case 'm':
m_arg = argtoi(optarg, 0, 0xf, 'm');
break;
case 'o':
stropt(optarg, &o_and, &o_or);
o_flag = 1;
@ -157,6 +160,10 @@ main(int argc, char *argv[])
}
if (d_arg != -1)
buf[OFF_DRIVE] = d_arg;
if (m_arg != -1) {
buf[OFF_FLAGS] &= 0xf0;
buf[OFF_FLAGS] |= m_arg;
}
if (o_flag) {
buf[OFF_FLAGS] &= o_and;
buf[OFF_FLAGS] |= o_or;
@ -188,7 +195,8 @@ main(int argc, char *argv[])
part[i].dp_size);
}
printf("\n");
printf("drive=0x%x options=", buf[OFF_DRIVE]);
printf("drive=0x%x mask=0x%x options=", buf[OFF_DRIVE],
buf[OFF_FLAGS] & 0xf);
for (i = 0; i < nopt; i++) {
if (i)
printf(",");
@ -264,7 +272,7 @@ static void
usage(void)
{
fprintf(stderr, "%s\n%s\n",
"usage: boot0cfg [-Bv] [-b boot0] [-d drive] [-f file] [-o options]",
" [-t ticks] disk");
"usage: boot0cfg [-Bv] [-b boot0] [-d drive] [-f file] [-m mask]",
" [-o options] [-t ticks] disk");
exit(1);
}