749 lines
16 KiB
C
749 lines
16 KiB
C
/* $NetBSD: interact.c,v 1.23 2003/12/29 21:21:25 jdc Exp $ */
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/*
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* Copyright (c) 1997 Christos Zoulas. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christos Zoulas.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: interact.c,v 1.23 2003/12/29 21:21:25 jdc Exp $");
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#endif /* lint */
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#include <sys/param.h>
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#define FSTYPENAMES
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#define DKTYPENAMES
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#include <sys/disklabel.h>
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#include <err.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <util.h>
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#include "extern.h"
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static void cmd_help(struct disklabel *, char *, int);
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static void cmd_chain(struct disklabel *, char *, int);
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static void cmd_print(struct disklabel *, char *, int);
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static void cmd_printall(struct disklabel *, char *, int);
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static void cmd_info(struct disklabel *, char *, int);
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static void cmd_part(struct disklabel *, char *, int);
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static void cmd_label(struct disklabel *, char *, int);
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static void cmd_round(struct disklabel *, char *, int);
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static void cmd_name(struct disklabel *, char *, int);
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static int runcmd(struct disklabel *, char *, int);
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static int getinput(const char *, const char *, const char *, char *);
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static int alphacmp(const void *, const void *);
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static void defnum(struct disklabel *, char *, uint32_t);
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static void dumpnames(const char *, const char * const *, size_t);
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static int getnum(struct disklabel *, char *, int);
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static int rounding = 0; /* sector rounding */
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static int chaining = 0; /* make partitions contiguous */
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static struct cmds {
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const char *name;
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void (*func)(struct disklabel *, char *, int);
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const char *help;
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} cmds[] = {
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{ "?", cmd_help, "print this menu" },
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{ "C", cmd_chain, "make partitions contiguous" },
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{ "E", cmd_printall, "print disk label and current partition table"},
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{ "I", cmd_info, "change label information" },
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{ "N", cmd_name, "name the label" },
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{ "P", cmd_print, "print current partition table" },
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{ "Q", NULL, "quit" },
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{ "R", cmd_round, "rounding (c)ylinders (s)ectors" },
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{ "W", cmd_label, "write the current partition table" },
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{ NULL, NULL, NULL }
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};
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static void
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cmd_help(struct disklabel *lp, char *s, int fd)
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{
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struct cmds *cmd;
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for (cmd = cmds; cmd->name != NULL; cmd++)
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printf("%s\t%s\n", cmd->name, cmd->help);
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printf("[a-%c]\tdefine named partition\n",
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'a' + getmaxpartitions() - 1);
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}
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static void
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cmd_chain(struct disklabel *lp, char *s, int fd)
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{
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int i;
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char line[BUFSIZ];
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i = getinput(":", "Automatically adjust partitions",
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chaining ? "yes" : "no", line);
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if (i <= 0)
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return;
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switch (line[0]) {
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case 'y':
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chaining = 1;
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return;
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case 'n':
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chaining = 0;
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return;
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default:
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printf("Invalid answer\n");
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return;
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}
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}
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static void
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cmd_printall(struct disklabel *lp, char *s, int fd)
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{
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showinfo(stdout, lp, specname);
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showpartitions(stdout, lp, Cflag);
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}
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static void
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cmd_print(struct disklabel *lp, char *s, int fd)
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{
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showpartitions(stdout, lp, Cflag);
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}
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static void
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cmd_info(struct disklabel *lp, char *s, int fd)
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{
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char line[BUFSIZ];
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char def[BUFSIZ];
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int v, i;
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u_int32_t u;
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printf("# Current values:\n");
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showinfo(stdout, lp, specname);
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/* d_type */
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for (;;) {
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i = lp->d_type;
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if (i < 0 || i >= DKMAXTYPES)
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i = 0;
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snprintf(def, sizeof(def), "%s", dktypenames[i]);
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i = getinput(":", "Disk type [?]", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (!strcmp(line, "?")) {
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dumpnames("Supported disk types", dktypenames,
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DKMAXTYPES);
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continue;
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}
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for (i = 0; i < DKMAXTYPES; i++) {
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if (!strcasecmp(dktypenames[i], line)) {
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lp->d_type = i;
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goto done_typename;
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}
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}
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v = atoi(line);
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if ((unsigned)v >= DKMAXTYPES) {
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warnx("Unknown disk type: %s", line);
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continue;
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}
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lp->d_type = v;
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done_typename:
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break;
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}
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/* d_typename */
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snprintf(def, sizeof(def), "%.*s",
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(int) sizeof(lp->d_typename), lp->d_typename);
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i = getinput(":", "Disk name", def, line);
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if (i == -1)
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return;
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else if (i == 1)
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(void) strncpy(lp->d_typename, line, sizeof(lp->d_typename));
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/* d_packname */
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cmd_name(lp, s, fd);
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/* d_npartitions */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_npartitions);
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i = getinput(":", "Number of partitions", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid number of partitions `%s'\n", line);
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continue;
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}
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lp->d_npartitions = u;
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break;
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}
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/* d_secsize */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_secsize);
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i = getinput(":", "Sector size (bytes)", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid sector size `%s'\n", line);
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continue;
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}
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lp->d_secsize = u;
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break;
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}
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/* d_nsectors */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_nsectors);
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i = getinput(":", "Number of sectors per track", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid number of sectors `%s'\n", line);
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continue;
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}
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lp->d_nsectors = u;
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break;
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}
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/* d_ntracks */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_ntracks);
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i = getinput(":", "Number of tracks per cylinder", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid number of tracks `%s'\n", line);
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continue;
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}
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lp->d_ntracks = u;
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break;
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}
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/* d_secpercyl */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_secpercyl);
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i = getinput(":", "Number of sectors/cylinder", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid number of sector/cylinder `%s'\n",
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line);
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continue;
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}
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lp->d_secpercyl = u;
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break;
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}
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/* d_ncylinders */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_ncylinders);
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i = getinput(":", "Total number of cylinders", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid sector size `%s'\n", line);
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continue;
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}
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lp->d_ncylinders = u;
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break;
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}
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/* d_secperunit */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_secperunit);
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i = getinput(":", "Total number of sectors", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid number of sectors `%s'\n", line);
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continue;
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}
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lp->d_secperunit = u;
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break;
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}
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/* d_rpm */
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/* d_interleave */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_interleave);
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i = getinput(":", "Hardware sectors interleave", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid sector interleave `%s'\n", line);
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continue;
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}
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lp->d_interleave = u;
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break;
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}
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/* d_trackskew */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_trackskew);
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i = getinput(":", "Sector 0 skew, per track", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid track sector skew `%s'\n", line);
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continue;
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}
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lp->d_trackskew = u;
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break;
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}
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/* d_cylskew */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_cylskew);
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i = getinput(":", "Sector 0 skew, per cylinder", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid cylinder sector `%s'\n", line);
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continue;
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}
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lp->d_cylskew = u;
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break;
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}
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/* d_headswitch */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_headswitch);
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i = getinput(":", "Head switch time (usec)", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid head switch time `%s'\n", line);
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continue;
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}
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lp->d_headswitch = u;
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break;
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}
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/* d_trkseek */
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for (;;) {
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snprintf(def, sizeof(def), "%u", lp->d_trkseek);
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i = getinput(":", "Track seek time (usec)", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (sscanf(line, "%u", &u) != 1) {
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printf("Invalid track seek time `%s'\n", line);
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continue;
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}
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lp->d_trkseek = u;
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break;
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}
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}
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static void
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cmd_name(struct disklabel *lp, char *s, int fd)
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{
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char line[BUFSIZ];
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char def[BUFSIZ];
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int i;
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snprintf(def, sizeof(def), "%.*s",
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(int) sizeof(lp->d_packname), lp->d_packname);
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i = getinput(":", "Label name", def, line);
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if (i <= 0)
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return;
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(void) strncpy(lp->d_packname, line, sizeof(lp->d_packname));
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}
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static void
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cmd_round(struct disklabel *lp, char *s, int fd)
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{
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int i;
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char line[BUFSIZ];
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i = getinput(":", "Rounding", rounding ? "cylinders" : "sectors", line);
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if (i <= 0)
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return;
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switch (line[0]) {
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case 'c':
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rounding = 1;
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return;
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case 's':
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rounding = 0;
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return;
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default:
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printf("Rounding can be (c)ylinders or (s)ectors\n");
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return;
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}
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}
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static void
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cmd_part(struct disklabel *lp, char *s, int fd)
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{
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int i;
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char line[BUFSIZ];
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char def[BUFSIZ];
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int part;
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struct partition *p, ps;
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part = s[0] - 'a';
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p = &lp->d_partitions[part];
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if (part >= lp->d_npartitions)
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lp->d_npartitions = part + 1;
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(void)memcpy(&ps, p, sizeof(ps));
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for (;;) {
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i = p->p_fstype;
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if (i < 0 || i >= FSMAXTYPES)
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i = 0;
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snprintf(def, sizeof(def), "%s", fstypenames[i]);
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i = getinput(":", "Filesystem type [?]", def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (!strcmp(line, "?")) {
|
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dumpnames("Supported file system types",
|
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fstypenames, FSMAXTYPES);
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continue;
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}
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for (i = 0; i < FSMAXTYPES; i++)
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if (!strcasecmp(line, fstypenames[i])) {
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p->p_fstype = i;
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goto done_typename;
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}
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printf("Invalid file system typename `%s'\n", line);
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continue;
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done_typename:
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break;
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}
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for (;;) {
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defnum(lp, def, p->p_offset);
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i = getinput(":",
|
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"Start offset ('x' to start after partition 'x')",
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def, line);
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if (i == -1)
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return;
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else if (i == 0)
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break;
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if (line[1] == '\0' &&
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line[0] >= 'a' && line[0] < 'a' + getmaxpartitions()) {
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struct partition *cp = lp->d_partitions;
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|
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if ((cp[line[0] - 'a'].p_offset +
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cp[line[0] - 'a'].p_size) >= lp->d_secperunit) {
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printf("Bad offset `%s'\n", line);
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continue;
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} else {
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p->p_offset = cp[line[0] - 'a'].p_offset +
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cp[line[0] - 'a'].p_size;
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}
|
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} else {
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if ((i = getnum(lp, line, 0)) == -1) {
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printf("Bad offset `%s'\n", line);
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continue;
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} else if (i > lp->d_secperunit) {
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printf("Offset `%s' out of range\n", line);
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continue;
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}
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p->p_offset = i;
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}
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break;
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}
|
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for (;;) {
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defnum(lp, def, p->p_size);
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i = getinput(":", "Partition size ('$' for all remaining)",
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|
def, line);
|
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if (i == -1)
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return;
|
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else if (i == 0)
|
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break;
|
|
if ((i = getnum(lp, line, lp->d_secperunit - p->p_offset))
|
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== -1) {
|
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printf("Bad size `%s'\n", line);
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|
continue;
|
|
} else if
|
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((i + p->p_offset) > lp->d_secperunit) {
|
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printf("Size `%s' out of range\n", line);
|
|
continue;
|
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}
|
|
p->p_size = i;
|
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break;
|
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}
|
|
|
|
if (memcmp(&ps, p, sizeof(ps)))
|
|
showpartition(stdout, lp, part, Cflag);
|
|
if (chaining) {
|
|
int offs = -1;
|
|
struct partition *cp = lp->d_partitions;
|
|
for (i = 0; i < lp->d_npartitions; i++) {
|
|
if (cp[i].p_fstype != FS_UNUSED) {
|
|
if (offs != -1 && cp[i].p_offset != offs) {
|
|
cp[i].p_offset = offs;
|
|
showpartition(stdout, lp, i, Cflag);
|
|
}
|
|
offs = cp[i].p_offset + cp[i].p_size;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
cmd_label(struct disklabel *lp, char *s, int fd)
|
|
{
|
|
char line[BUFSIZ];
|
|
int i;
|
|
|
|
i = getinput("?", "Label disk", "n", line);
|
|
if (i <= 0 || (*line != 'y' && *line != 'Y') )
|
|
return;
|
|
|
|
if (checklabel(lp) != 0) {
|
|
printf("Label not written\n");
|
|
return;
|
|
}
|
|
|
|
if (writelabel(fd, bootarea, lp) != 0) {
|
|
printf("Label not written\n");
|
|
return;
|
|
}
|
|
printf("Label written\n");
|
|
}
|
|
|
|
|
|
static int
|
|
runcmd(struct disklabel *lp, char *line, int fd)
|
|
{
|
|
struct cmds *cmd;
|
|
|
|
for (cmd = cmds; cmd->name != NULL; cmd++)
|
|
if (strncmp(line, cmd->name, strlen(cmd->name)) == 0) {
|
|
if (cmd->func == NULL)
|
|
return -1;
|
|
(*cmd->func)(lp, line, fd);
|
|
return 0;
|
|
}
|
|
|
|
if (line[1] == '\0' &&
|
|
line[0] >= 'a' && line[0] < 'a' + getmaxpartitions()) {
|
|
cmd_part(lp, line, fd);
|
|
return 0;
|
|
}
|
|
|
|
printf("Unknown command %s\n", line);
|
|
return 1;
|
|
}
|
|
|
|
|
|
static int
|
|
getinput(const char *sep, const char *prompt, const char *def, char *line)
|
|
{
|
|
|
|
for (;;) {
|
|
printf("%s", prompt);
|
|
if (def)
|
|
printf(" [%s]", def);
|
|
printf("%s ", sep);
|
|
|
|
if (fgets(line, BUFSIZ, stdin) == NULL)
|
|
return -1;
|
|
if (line[0] == '\n' || line[0] == '\0') {
|
|
if (def)
|
|
return 0;
|
|
}
|
|
else {
|
|
char *p;
|
|
|
|
if ((p = strrchr(line, '\n')) != NULL)
|
|
*p = '\0';
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
alphacmp(const void *a, const void *b)
|
|
{
|
|
|
|
return (strcasecmp(*(const char **)a, *(const char **)b));
|
|
}
|
|
|
|
|
|
static void
|
|
dumpnames(const char *prompt, const char * const *olist, size_t numentries)
|
|
{
|
|
int i, j, w;
|
|
int columns, width, lines;
|
|
const char *p;
|
|
const char **list;
|
|
|
|
list = (const char **)malloc(sizeof(char *) * numentries);
|
|
width = 0;
|
|
printf("%s:\n", prompt);
|
|
for (i = 0; i < numentries; i++) {
|
|
list[i] = olist[i];
|
|
w = strlen(list[i]);
|
|
if (w > width)
|
|
width = w;
|
|
}
|
|
#if 0
|
|
for (i = 0; i < numentries; i++)
|
|
printf("%s%s", i == 0 ? "" : ", ", list[i]);
|
|
puts("");
|
|
#endif
|
|
(void)qsort(list, numentries, sizeof(char *), alphacmp);
|
|
width++; /* want two spaces between items */
|
|
width = (width + 8) &~ 7;
|
|
|
|
#define ttywidth 72
|
|
columns = ttywidth / width;
|
|
#undef ttywidth
|
|
if (columns == 0)
|
|
columns = 1;
|
|
lines = (numentries + columns - 1) / columns;
|
|
for (i = 0; i < lines; i++) {
|
|
for (j = 0; j < columns; j++) {
|
|
p = list[j * lines + i];
|
|
if (j == 0)
|
|
putc('\t', stdout);
|
|
if (p) {
|
|
fputs(p, stdout);
|
|
}
|
|
if (j * lines + i + lines >= numentries) {
|
|
putc('\n', stdout);
|
|
break;
|
|
}
|
|
w = strlen(p);
|
|
while (w < width) {
|
|
w = (w + 8) &~ 7;
|
|
putc('\t', stdout);
|
|
}
|
|
}
|
|
}
|
|
free(list);
|
|
}
|
|
|
|
|
|
static void
|
|
defnum(struct disklabel *lp, char *buf, uint32_t size)
|
|
{
|
|
|
|
(void) snprintf(buf, BUFSIZ, "%gc, %us, %gM",
|
|
size / (float) lp->d_secpercyl,
|
|
size, size * (lp->d_secsize / (float) (1024 * 1024)));
|
|
}
|
|
|
|
|
|
static int
|
|
getnum(struct disklabel *lp, char *buf, int max)
|
|
{
|
|
char *ep;
|
|
double d;
|
|
int rv;
|
|
|
|
if (max && buf[0] == '$' && buf[1] == 0)
|
|
return max;
|
|
|
|
d = strtod(buf, &ep);
|
|
if (buf == ep)
|
|
return -1;
|
|
|
|
#define ROUND(a) ((((a) / lp->d_secpercyl) + \
|
|
(((a) % lp->d_secpercyl) ? 1 : 0)) * lp->d_secpercyl)
|
|
|
|
switch (*ep) {
|
|
case '\0':
|
|
case 's':
|
|
rv = (int) d;
|
|
break;
|
|
|
|
case 'c':
|
|
rv = (int) (d * lp->d_secpercyl);
|
|
break;
|
|
|
|
case 'm':
|
|
case 'M':
|
|
rv = (int) (d * 1024 * 1024 / lp->d_secsize);
|
|
break;
|
|
|
|
default:
|
|
printf("Unit error %c\n", *ep);
|
|
return -1;
|
|
}
|
|
|
|
if (rounding)
|
|
return ROUND(rv);
|
|
else
|
|
return rv;
|
|
}
|
|
|
|
|
|
void
|
|
interact(struct disklabel *lp, int fd)
|
|
{
|
|
char line[BUFSIZ];
|
|
|
|
for (;;) {
|
|
if (getinput(">", "partition", NULL, line) == -1)
|
|
return;
|
|
if (runcmd(lp, line, fd) == -1)
|
|
return;
|
|
}
|
|
}
|