mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
264 lines
6.8 KiB
C
264 lines
6.8 KiB
C
/*
|
|
* Copyright (c) 1980, 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. 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.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)mkswapconf.c 8.1 (Berkeley) 6/6/93";
|
|
#endif /* not lint */
|
|
|
|
/*
|
|
* Build a swap configuration file.
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <sys/disklabel.h>
|
|
#include <sys/diskslice.h>
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
|
|
swapconf()
|
|
{
|
|
register struct file_list *fl;
|
|
struct file_list *do_swap();
|
|
|
|
fl = conf_list;
|
|
while (fl) {
|
|
if (fl->f_type != SYSTEMSPEC) {
|
|
fl = fl->f_next;
|
|
continue;
|
|
}
|
|
fl = do_swap(fl);
|
|
}
|
|
}
|
|
|
|
struct file_list *
|
|
do_swap(fl)
|
|
register struct file_list *fl;
|
|
{
|
|
FILE *fp;
|
|
char newswapname[80];
|
|
char swapname[80];
|
|
register struct file_list *swap;
|
|
dev_t dev;
|
|
|
|
if (eq(fl->f_fn, "generic")) {
|
|
fl = fl->f_next;
|
|
return (fl->f_next);
|
|
}
|
|
(void) sprintf(swapname, "swap%s.c", fl->f_fn);
|
|
(void) sprintf(newswapname, "swap%s.c.new", fl->f_fn);
|
|
fp = fopen(path(newswapname), "w");
|
|
if (fp == 0) {
|
|
perror(path(newswapname));
|
|
exit(1);
|
|
}
|
|
fprintf(fp, "#include <sys/param.h>\n");
|
|
fprintf(fp, "#include <sys/conf.h>\n");
|
|
fprintf(fp, "\n");
|
|
/*
|
|
* If there aren't any swap devices
|
|
* specified, just return, the error
|
|
* has already been noted.
|
|
*/
|
|
swap = fl->f_next;
|
|
if (swap == 0 || swap->f_type != SWAPSPEC) {
|
|
(void) unlink(path(newswapname));
|
|
fclose(fp);
|
|
return (swap);
|
|
}
|
|
fprintf(fp, "dev_t\trootdev = makedev(%d, 0x%08x);\t\t/* %s */\n",
|
|
major(fl->f_rootdev), minor(fl->f_rootdev),
|
|
devtoname(fl->f_rootdev));
|
|
if (fl->f_dumpdev != NODEV) {
|
|
fprintf(fp, "dev_t\tdumpdev = makedev(%d, 0x%08x);\t\t/* %s */\n",
|
|
major(fl->f_dumpdev), minor(fl->f_dumpdev),
|
|
devtoname(fl->f_dumpdev));
|
|
} else {
|
|
fprintf(fp, "dev_t\tdumpdev = NODEV;\t\t\t/* unconfigured */\n");
|
|
}
|
|
fprintf(fp, "\n");
|
|
fprintf(fp, "void\nsetconf()\n{\n}\n");
|
|
fclose(fp);
|
|
moveifchanged(path(newswapname), path(swapname));
|
|
return (swap);
|
|
}
|
|
|
|
static int devtablenotread = 1;
|
|
static struct devdescription {
|
|
char *dev_name;
|
|
int dev_major;
|
|
struct devdescription *dev_next;
|
|
} *devtable;
|
|
|
|
/*
|
|
* Given a device name specification figure out:
|
|
* major device number
|
|
* partition
|
|
* device name
|
|
* unit number
|
|
* This is a hack, but the system still thinks in
|
|
* terms of major/minor instead of string names.
|
|
*/
|
|
dev_t
|
|
nametodev(name, defunit, defslice, defpartition)
|
|
char *name;
|
|
int defunit;
|
|
int defslice;
|
|
char defpartition;
|
|
{
|
|
char *cp, partition;
|
|
int unit, slice;
|
|
register struct devdescription *dp;
|
|
|
|
cp = name;
|
|
if (cp == 0) {
|
|
fprintf(stderr, "config: internal error, nametodev\n");
|
|
exit(1);
|
|
}
|
|
while (*cp && !isdigit(*cp))
|
|
cp++;
|
|
unit = *cp ? atoi(cp) : defunit;
|
|
if (unit < 0 || unit > 31) {
|
|
fprintf(stderr,
|
|
"config: %s: invalid device specification, unit out of range\n", name);
|
|
unit = defunit; /* carry on more checking */
|
|
}
|
|
if (*cp) {
|
|
*cp++ = '\0';
|
|
while (*cp && isdigit(*cp))
|
|
cp++;
|
|
}
|
|
slice = defslice;
|
|
if (*cp == 's') {
|
|
++cp;
|
|
if (*cp) {
|
|
slice = atoi(cp);
|
|
if (slice < 0 || slice >= MAX_SLICES - 1) {
|
|
fprintf(stderr,
|
|
"config: %s: invalid device specification, slice out of range\n", cp);
|
|
slice = defslice;
|
|
}
|
|
if (slice != COMPATIBILITY_SLICE)
|
|
slice++;
|
|
*cp++ = '\0';
|
|
while (*cp && isdigit(*cp))
|
|
cp++;
|
|
}
|
|
}
|
|
partition = *cp ? *cp : defpartition;
|
|
if (partition < 'a' || partition > 'h') {
|
|
fprintf(stderr,
|
|
"config: %c: invalid device specification, bad partition\n", *cp);
|
|
partition = defpartition; /* carry on */
|
|
}
|
|
if (devtablenotread)
|
|
initdevtable();
|
|
for (dp = devtable; dp; dp = dp->dev_next)
|
|
if (eq(name, dp->dev_name))
|
|
break;
|
|
if (dp == 0) {
|
|
fprintf(stderr, "config: %s: unknown device\n", name);
|
|
return (NODEV);
|
|
}
|
|
return (makedev(dp->dev_major,
|
|
dkmakeminor(unit, slice, partition - 'a')));
|
|
}
|
|
|
|
char *
|
|
devtoname(dev)
|
|
dev_t dev;
|
|
{
|
|
char buf[80];
|
|
register struct devdescription *dp;
|
|
int part;
|
|
char partname[2];
|
|
int slice;
|
|
char slicename[32];
|
|
|
|
if (devtablenotread)
|
|
initdevtable();
|
|
for (dp = devtable; dp; dp = dp->dev_next)
|
|
if (major(dev) == dp->dev_major)
|
|
break;
|
|
if (dp == 0)
|
|
dp = devtable;
|
|
part = dkpart(dev);
|
|
slice = dkslice(dev);
|
|
slicename[0] = partname[0] = '\0';
|
|
if (slice != WHOLE_DISK_SLICE || part != RAW_PART) {
|
|
partname[0] = 'a' + part;
|
|
partname[1] = '\0';
|
|
if (slice != COMPATIBILITY_SLICE)
|
|
sprintf(slicename, "s%d", slice - 1);
|
|
}
|
|
(void) sprintf(buf, "%s%d%s%s", dp->dev_name,
|
|
dkunit(dev), slicename, partname);
|
|
return (ns(buf));
|
|
}
|
|
|
|
initdevtable()
|
|
{
|
|
char linebuf[256];
|
|
char buf[BUFSIZ];
|
|
int maj;
|
|
register struct devdescription **dp = &devtable;
|
|
FILE *fp;
|
|
|
|
(void) sprintf(buf, "../conf/devices.%s", machinename);
|
|
fp = fopen(buf, "r");
|
|
if (fp == NULL) {
|
|
fprintf(stderr, "config: can't open %s\n", buf);
|
|
exit(1);
|
|
}
|
|
while(fgets(linebuf,256,fp)) {
|
|
/*******************************\
|
|
* Allow a comment *
|
|
\*******************************/
|
|
if(linebuf[0] == '#') continue;
|
|
|
|
if (sscanf(linebuf, "%s\t%d\n", buf, &maj) == 2) {
|
|
*dp = (struct devdescription *)malloc(sizeof (**dp));
|
|
memset(*dp, 0, sizeof(**dp));
|
|
(*dp)->dev_name = ns(buf);
|
|
(*dp)->dev_major = maj;
|
|
dp = &(*dp)->dev_next;
|
|
} else {
|
|
fprintf(stderr,"illegal line in devices file\n");
|
|
break;
|
|
}
|
|
}
|
|
*dp = 0;
|
|
fclose(fp);
|
|
devtablenotread = 0;
|
|
}
|