de8b3ad2c7
It doesn't need any special privileges or kernel devices. Only ffs image creation is supported at this time, although makefs has been designed to allow the addition of other file system formats by writing new back-ends. This program was designed & implemented by Luke Mewburn of Wasabi Systems.
330 lines
7.7 KiB
C
330 lines
7.7 KiB
C
/* $NetBSD: makefs.c,v 1.1.1.1 2001/10/26 06:59:02 lukem Exp $ */
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/*
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* Copyright 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Luke Mewburn for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <assert.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "makefs.h"
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/*
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* list of supported file systems and dispatch functions
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*/
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typedef struct {
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const char *type;
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int (*parse_options)(const char *, fsinfo_t *);
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void (*make_fs)(const char *, const char *, fsnode *,
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fsinfo_t *);
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} fstype_t;
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static fstype_t fstypes[] = {
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{ "ffs", ffs_parse_opts, ffs_makefs },
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{ NULL },
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};
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int debug;
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struct timespec start_time;
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static fstype_t *get_fstype(const char *);
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static long long strsuftoll(const char *, const char *, long long, long long);
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static void usage(void);
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int main(int, char *[]);
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int
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main(int argc, char *argv[])
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{
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struct timeval start;
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fstype_t *fstype;
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fsinfo_t fsoptions;
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fsnode *root;
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int ch, len;
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char *specfile;
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debug = 0;
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if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
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errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
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(void)memset(&fsoptions, 0, sizeof(fsoptions));
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fsoptions.fd = -1;
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specfile = NULL;
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if (gettimeofday(&start, NULL) == -1)
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err(1, "Unable to get system time");
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TIMEVAL_TO_TIMESPEC(&start, &start_time);
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while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:o:s:S:t:")) != -1) {
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switch (ch) {
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case 'B':
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if (strcmp(optarg, "be") == 0 ||
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strcmp(optarg, "big") == 0) {
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#if BYTE_ORDER == LITTLE_ENDIAN
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fsoptions.needswap = 1;
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#endif
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} else if (strcmp(optarg, "le") == 0 ||
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strcmp(optarg, "little") == 0) {
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#if BYTE_ORDER == BIG_ENDIAN
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fsoptions.needswap = 1;
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#endif
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} else {
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warnx("Invalid endian `%s'.", optarg);
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usage();
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}
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break;
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case 'b':
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len = strlen(optarg) - 1;
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if (optarg[len] == '%') {
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optarg[len] = '\0';
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fsoptions.freeblockpc =
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strsuftoll("free block percentage",
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optarg, 0, LLONG_MAX);
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} else {
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fsoptions.freeblocks = strsuftoll("free blocks",
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optarg, 0, LLONG_MAX);
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}
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break;
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case 'd':
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debug = (int)strsuftoll("debug mask", optarg,
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0, LLONG_MAX);
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break;
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case 'f':
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len = strlen(optarg) - 1;
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if (optarg[len] == '%') {
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optarg[len] = '\0';
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fsoptions.freefilepc =
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strsuftoll("free file percentage",
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optarg, 0, LLONG_MAX);
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} else {
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fsoptions.freefiles = strsuftoll("free files",
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optarg, 0, LLONG_MAX);
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}
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break;
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case 'F':
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specfile = optarg;
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break;
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case 'M':
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fsoptions.minsize = strsuftoll("minimum size",
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optarg, 1LL, LLONG_MAX);
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break;
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case 'm':
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fsoptions.maxsize = strsuftoll("maximum size",
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optarg, 1LL, LLONG_MAX);
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break;
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case 'o':
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{
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char *p;
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while ((p = strsep(&optarg, ",")) != NULL) {
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if (*p == '\0')
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errx(1, "Empty option");
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if (! fstype->parse_options(p, &fsoptions))
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usage();
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}
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break;
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}
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case 's':
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fsoptions.minsize = fsoptions.maxsize =
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strsuftoll("size", optarg, 1LL, LLONG_MAX);
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break;
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case 'S':
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fsoptions.sectorsize = strsuftoll("sector size",
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optarg, 1LL, LLONG_MAX);
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break;
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case 't':
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if ((fstype = get_fstype(optarg)) == NULL)
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errx(1, "Unknown fs type `%s'.", optarg);
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break;
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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}
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if (debug) {
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printf("debug mask: 0x%08x\n", debug);
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printf("start time: %ld.%ld, %s",
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start_time.tv_sec, start_time.tv_nsec,
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ctime(&start_time.tv_sec));
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}
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argc -= optind;
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argv += optind;
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if (argc != 2)
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usage();
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/* walk the tree */
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TIMER_START(start);
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root = walk_dir(argv[1], NULL);
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TIMER_RESULTS(start, "walk_dir");
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if (specfile) { /* apply a specfile */
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TIMER_START(start);
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apply_specfile(specfile, argv[1], root);
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TIMER_RESULTS(start, "apply_specfile");
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}
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if (debug & DEBUG_DUMP_FSNODES) {
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putchar('\n');
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dump_fsnodes(argv[1], root);
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putchar('\n');
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}
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/* build the file system */
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TIMER_START(start);
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fstype->make_fs(argv[0], argv[1], root, &fsoptions);
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TIMER_RESULTS(start, "make_fs");
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exit(0);
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/* NOTREACHED */
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}
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int
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set_option(option_t *options, const char *var, const char *val)
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{
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int i;
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for (i = 0; options[i].name != NULL; i++) {
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if (strcmp(options[i].name, var) != 0)
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continue;
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*options[i].value = (int)strsuftoll(options[i].desc, val,
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options[i].minimum, options[i].maximum);
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return (1);
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}
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warnx("Unknown option `%s'", var);
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return (0);
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}
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static fstype_t *
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get_fstype(const char *type)
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{
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int i;
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for (i = 0; fstypes[i].type != NULL; i++)
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if (strcmp(fstypes[i].type, type) == 0)
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return (&fstypes[i]);
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return (NULL);
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}
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static long long
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strsuftoll(const char *desc, const char *arg, long long min, long long max)
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{
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long long result;
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char *ep;
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assert(desc != NULL);
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assert(arg != NULL);
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errno = 0;
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result = strtoll(arg, &ep, 0);
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if ((result == LLONG_MIN || result == LLONG_MAX) && errno == ERANGE) {
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warn("%s `%s'", desc, arg);
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usage();
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}
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if (ep[0] != '\0' && ep[1] != '\0') {
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warnx("`%s' is not a valid number for %s.", optarg, desc);
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usage();
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}
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switch (tolower((unsigned char)ep[0])) {
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case '\0':
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case 'b':
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break;
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case 'k':
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result <<= 10;
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break;
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case 'm':
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result <<= 20;
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break;
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case 'g':
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result <<= 30;
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break;
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default:
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warnx("`%s' is not a valid suffix for %s.", ep, desc);
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usage();
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}
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if (result < min) {
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warnx("%s `%s' (%lld) is less than %lld.",
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desc, optarg, result, min);
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usage();
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}
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if (result > max) {
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warnx("%s `%s' (%lld) is greater than %lld.",
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desc, optarg, result, max);
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usage();
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}
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if (debug & DEBUG_STRSUFTOLL)
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printf("strsuftoll: got %lld for %s %s\n",
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result, desc, arg);
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return (result);
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}
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static void
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usage(void)
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{
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const char *prog;
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prog = getprogname();
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fprintf(stderr,
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"Usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
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"\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
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"\t[-b free-blocks] [-f free-files] [-F mtree-specfile]\n"
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"\timage-file directory\n",
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prog);
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exit(1);
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}
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