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makefs.c revision 1.26 
      1 /*	$NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001-2003 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Luke Mewburn for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed for the NetBSD Project by
     20  *      Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #if HAVE_NBTOOL_CONFIG_H
     39 #include "nbtool_config.h"
     40 #endif
     41 
     42 #include <sys/cdefs.h>
     43 #if defined(__RCSID) && !defined(__lint)
     44 __RCSID("$NetBSD: makefs.c,v 1.26 2006/10/22 21:11:56 christos Exp $");
     45 #endif	/* !__lint */
     46 
     47 #include <assert.h>
     48 #include <ctype.h>
     49 #include <errno.h>
     50 #include <limits.h>
     51 #include <stdio.h>
     52 #include <stdlib.h>
     53 #include <string.h>
     54 #include <unistd.h>
     55 
     56 #include "makefs.h"
     57 #include "mtree.h"
     58 #include "cd9660.h"
     59 
     60 /*
     61  * list of supported file systems and dispatch functions
     62  */
     63 typedef struct {
     64 	const char	*type;
     65 	void		(*prepare_options)(fsinfo_t *);
     66 	int		(*parse_options)(const char *, fsinfo_t *);
     67 	void		(*cleanup_options)(fsinfo_t *);
     68 	void		(*make_fs)(const char *, const char *, fsnode *,
     69 				fsinfo_t *);
     70 } fstype_t;
     71 
     72 static fstype_t fstypes[] = {
     73 	{ "ffs", ffs_prep_opts,	ffs_parse_opts,	ffs_cleanup_opts, ffs_makefs },
     74 	{ "cd9660", cd9660_prep_opts, cd9660_parse_opts, cd9660_cleanup_opts,
     75 	  cd9660_makefs},
     76 	{ .type = NULL	},
     77 };
     78 
     79 u_int		debug;
     80 struct timespec	start_time;
     81 
     82 static	fstype_t *get_fstype(const char *);
     83 static	void	usage(void);
     84 int		main(int, char *[]);
     85 
     86 int
     87 main(int argc, char *argv[])
     88 {
     89 	struct timeval	 start;
     90 	fstype_t	*fstype;
     91 	fsinfo_t	 fsoptions;
     92 	fsnode		*root;
     93 	int	 	 ch, len;
     94 	char		*specfile;
     95 
     96 	setprogname(argv[0]);
     97 
     98 	debug = 0;
     99 	if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
    100 		errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
    101 
    102 		/* set default fsoptions */
    103 	(void)memset(&fsoptions, 0, sizeof(fsoptions));
    104 	fsoptions.fd = -1;
    105 	fsoptions.sectorsize = -1;
    106 
    107 	if (fstype->prepare_options)
    108 		fstype->prepare_options(&fsoptions);
    109 
    110 	specfile = NULL;
    111 	if (gettimeofday(&start, NULL) == -1)
    112 		err(1, "Unable to get system time");
    113 
    114 	start_time.tv_sec = start.tv_sec;
    115 	start_time.tv_nsec = start.tv_usec * 1000;
    116 
    117 	while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:N:o:s:S:t:x")) != -1) {
    118 		switch (ch) {
    119 
    120 		case 'B':
    121 			if (strcmp(optarg, "be") == 0 ||
    122 			    strcmp(optarg, "4321") == 0 ||
    123 			    strcmp(optarg, "big") == 0) {
    124 #if BYTE_ORDER == LITTLE_ENDIAN
    125 				fsoptions.needswap = 1;
    126 #endif
    127 			} else if (strcmp(optarg, "le") == 0 ||
    128 			    strcmp(optarg, "1234") == 0 ||
    129 			    strcmp(optarg, "little") == 0) {
    130 #if BYTE_ORDER == BIG_ENDIAN
    131 				fsoptions.needswap = 1;
    132 #endif
    133 			} else {
    134 				warnx("Invalid endian `%s'.", optarg);
    135 				usage();
    136 			}
    137 			break;
    138 
    139 		case 'b':
    140 			len = strlen(optarg) - 1;
    141 			if (optarg[len] == '%') {
    142 				optarg[len] = '\0';
    143 				fsoptions.freeblockpc =
    144 				    strsuftoll("free block percentage",
    145 					optarg, 0, 99);
    146 			} else {
    147 				fsoptions.freeblocks =
    148 				    strsuftoll("free blocks",
    149 					optarg, 0, LLONG_MAX);
    150 			}
    151 			break;
    152 
    153 		case 'd':
    154 			debug = strtoll(optarg, NULL, 0);
    155 			break;
    156 
    157 		case 'f':
    158 			len = strlen(optarg) - 1;
    159 			if (optarg[len] == '%') {
    160 				optarg[len] = '\0';
    161 				fsoptions.freefilepc =
    162 				    strsuftoll("free file percentage",
    163 					optarg, 0, 99);
    164 			} else {
    165 				fsoptions.freefiles =
    166 				    strsuftoll("free files",
    167 					optarg, 0, LLONG_MAX);
    168 			}
    169 			break;
    170 
    171 		case 'F':
    172 			specfile = optarg;
    173 			break;
    174 
    175 		case 'M':
    176 			fsoptions.minsize =
    177 			    strsuftoll("minimum size", optarg, 1LL, LLONG_MAX);
    178 			break;
    179 
    180 		case 'N':
    181 			if (! setup_getid(optarg))
    182 				errx(1,
    183 			    "Unable to use user and group databases in `%s'",
    184 				    optarg);
    185 			break;
    186 
    187 		case 'm':
    188 			fsoptions.maxsize =
    189 			    strsuftoll("maximum size", optarg, 1LL, LLONG_MAX);
    190 			break;
    191 
    192 		case 'o':
    193 		{
    194 			char *p;
    195 
    196 			while ((p = strsep(&optarg, ",")) != NULL) {
    197 				if (*p == '\0')
    198 					errx(1, "Empty option");
    199 				if (! fstype->parse_options(p, &fsoptions))
    200 					usage();
    201 			}
    202 			break;
    203 		}
    204 
    205 		case 's':
    206 			fsoptions.minsize = fsoptions.maxsize =
    207 			    strsuftoll("size", optarg, 1LL, LLONG_MAX);
    208 			break;
    209 
    210 		case 'S':
    211 			fsoptions.sectorsize =
    212 			    (int)strsuftoll("sector size", optarg,
    213 				1LL, INT_MAX);
    214 			break;
    215 
    216 		case 't':
    217 			/* Check current one and cleanup if necessary. */
    218 			if (fstype->cleanup_options)
    219 				fstype->cleanup_options(&fsoptions);
    220 			fsoptions.fs_specific = NULL;
    221 			if ((fstype = get_fstype(optarg)) == NULL)
    222 				errx(1, "Unknown fs type `%s'.", optarg);
    223 			fstype->prepare_options(&fsoptions);
    224 			break;
    225 
    226 		case 'x':
    227 			fsoptions.onlyspec = 1;
    228 			break;
    229 
    230 		case '?':
    231 		default:
    232 			usage();
    233 			/* NOTREACHED */
    234 
    235 		}
    236 	}
    237 	if (debug) {
    238 		printf("debug mask: 0x%08x\n", debug);
    239 		printf("start time: %ld.%ld, %s",
    240 		    (long)start_time.tv_sec, (long)start_time.tv_nsec,
    241 		    ctime(&start_time.tv_sec));
    242 	}
    243 	argc -= optind;
    244 	argv += optind;
    245 
    246 	if (argc != 2)
    247 		usage();
    248 
    249 	/* -x must be accompanied by -F */
    250 	if (fsoptions.onlyspec != 0 && specfile == NULL)
    251 		errx(1, "-x requires -F mtree-specfile.");
    252 
    253 				/* walk the tree */
    254 	TIMER_START(start);
    255 	root = walk_dir(argv[1], NULL);
    256 	TIMER_RESULTS(start, "walk_dir");
    257 
    258 	if (specfile) {		/* apply a specfile */
    259 		TIMER_START(start);
    260 		apply_specfile(specfile, argv[1], root, fsoptions.onlyspec);
    261 		TIMER_RESULTS(start, "apply_specfile");
    262 	}
    263 
    264 	if (debug & DEBUG_DUMP_FSNODES) {
    265 		printf("\nparent: %s\n", argv[1]);
    266 		dump_fsnodes(".", root);
    267 		putchar('\n');
    268 	}
    269 
    270 				/* build the file system */
    271 	TIMER_START(start);
    272 	fstype->make_fs(argv[0], argv[1], root, &fsoptions);
    273 	TIMER_RESULTS(start, "make_fs");
    274 
    275 	free_fsnodes(root);
    276 
    277 	exit(0);
    278 	/* NOTREACHED */
    279 }
    280 
    281 
    282 int
    283 set_option(option_t *options, const char *var, const char *val)
    284 {
    285 	int	i;
    286 
    287 	for (i = 0; options[i].name != NULL; i++) {
    288 		if (strcmp(options[i].name, var) != 0)
    289 			continue;
    290 		*options[i].value = (int)strsuftoll(options[i].desc, val,
    291 		    options[i].minimum, options[i].maximum);
    292 		return (1);
    293 	}
    294 	warnx("Unknown option `%s'", var);
    295 	return (0);
    296 }
    297 
    298 
    299 static fstype_t *
    300 get_fstype(const char *type)
    301 {
    302 	int i;
    303 
    304 	for (i = 0; fstypes[i].type != NULL; i++)
    305 		if (strcmp(fstypes[i].type, type) == 0)
    306 			return (&fstypes[i]);
    307 	return (NULL);
    308 }
    309 
    310 static void
    311 usage(void)
    312 {
    313 	const char *prog;
    314 
    315 	prog = getprogname();
    316 	fprintf(stderr,
    317 "usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
    318 "\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
    319 "\t[-b free-blocks] [-f free-files] [-F mtree-specfile] [-x]\n"
    320 "\t[-N userdb-dir] image-file directory\n",
    321 	    prog);
    322 	exit(1);
    323 }
    324