/* * Copyright (c) 1980 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[] = "from: @(#)mkswapconf.c 5.10 (Berkeley) 7/1/91";*/ static char rcsid[] = "$Id: mkswapconf.c,v 1.10 1995/04/28 08:16:07 cgd Exp $"; #endif /* not lint */ /* * Build a swap configuration file. */ #include "config.h" #include #include 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 swapname[80]; register struct file_list *swap; dev_t dev; if (eq(fl->f_fn, "generic") || eq(fl->f_fn, "nfs")) { fl = fl->f_next; return (fl->f_next); } (void) sprintf(swapname, "swap%s.c", fl->f_fn); fp = fopen(path(swapname), "w"); if (fp == 0) { perror(path(swapname)); 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(swapname)); fclose(fp); return (swap); } fprintf(fp, "dev_t\trootdev = makedev(%d, %d);\n", major(fl->f_rootdev), minor(fl->f_rootdev)); fprintf(fp, "dev_t\tdumpdev = makedev(%d, %d);\n", major(fl->f_dumpdev), minor(fl->f_dumpdev)); fprintf(fp, "\n"); fprintf(fp, "struct\tswdevt swdevt[] = {\n"); do { dev = swap->f_swapdev; fprintf(fp, "\t{ makedev(%d, %d),\t0,\t%d },\t/* %s */\n", major(dev), minor(dev), swap->f_swapsize, swap->f_fn); swap = swap->f_next; } while (swap && swap->f_type == SWAPSPEC); fprintf(fp, "\t{ NODEV, 0, 0 }\n"); fprintf(fp, "};\n\n"); fprintf(fp, "extern int ffs_mountroot();\n"); fprintf(fp, "int (*mountroot)() = ffs_mountroot;\n"); fclose(fp); 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, defpartition) char *name; int defunit; char defpartition; { char *cp, partition; int unit; register struct devdescription *dp; cp = name; if (cp == 0) { fprintf(stderr, "config.old: internal error, nametodev\n"); exit(1); } while (*cp && !isdigit(*cp)) cp++; unit = *cp ? atoi(cp) : defunit; if (unit < 0 || unit > 31) { fprintf(stderr, "config.old: %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++; } partition = *cp ? *cp : defpartition; if (partition < 'a' || partition > 'h') { fprintf(stderr, "config.old: %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.old: %s: unknown device\n", name); return (NODEV); } return (makedev(dp->dev_major, (unit << 3) + (partition - 'a'))); } char * devtoname(dev) dev_t dev; { char buf[80]; register struct devdescription *dp; if (devtablenotread) initdevtable(); for (dp = devtable; dp; dp = dp->dev_next) if (major(dev) == dp->dev_major) break; if (dp == 0) dp = devtable; (void) sprintf(buf, "%s%d%c", dp->dev_name, minor(dev) >> 3, (minor(dev) & 07) + 'a'); return (ns(buf)); } initdevtable() { char linebuf[256]; char buf[BUFSIZ]; int maj; register struct devdescription **dp = &devtable; FILE *fp; if (machinename==NULL) { fprintf(stderr, "config.old: machine not specified\n"); exit(1); } (void) sprintf(buf, "../conf/devices.%s.oldconf", machinename); fp = fopen(buf, "r"); if (fp == NULL) { fprintf(stderr, "config.old: "); perror(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)); (*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; }