/* * 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 #if 0 static char sccsid[] = "@(#)mkswapconf.c 8.1 (Berkeley) 6/6/93"; #endif static const char rcsid[] = "$Id: mkswapconf.c,v 1.1.2.1 1998/10/21 09:06:53 nakagawa Exp $"; #endif /* not lint */ /* * Build a swap configuration file. */ #include #include #include "config.h" #include #include #include #include void initdevtable __P((void)); void 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; 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) err(1, "%s", path(newswapname)); fprintf(fp, "#include \n"); fprintf(fp, "#include \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) errx(1, "internal error, nametodev"); while (*cp && !isdigit(*cp)) cp++; unit = *cp ? atoi(cp) : defunit; if (unit < 0 || unit > 31) { warnx( "%s: invalid device specification, unit out of range", 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) { warnx( "%s: invalid device specification, slice out of range", cp); slice = defslice; } if (slice != COMPATIBILITY_SLICE) slice++; *cp++ = '\0'; while (*cp && isdigit(*cp)) cp++; } } partition = *cp ? *cp : defpartition; if (partition < 'a' || partition > 'h') { warnx("%c: invalid device specification, bad partition", *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) { warnx("%s: unknown device", 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)); } void 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) errx(1, "can't open %s", buf); 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; }