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makefs.c revision 1.13
      1 /*	$NetBSD: makefs.c,v 1.13 2002/01/31 22:44:02 tv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2001-2002 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 #include <sys/cdefs.h>
     39 #if defined(__RCSID) && !defined(__lint)
     40 __RCSID("$NetBSD: makefs.c,v 1.13 2002/01/31 22:44:02 tv Exp $");
     41 #endif	/* !__lint */
     42 
     43 #include <assert.h>
     44 #include <ctype.h>
     45 #include <errno.h>
     46 #include <limits.h>
     47 #include <stdio.h>
     48 #include <stdlib.h>
     49 #include <string.h>
     50 #include <unistd.h>
     51 
     52 #include "makefs.h"
     53 #include "mtree.h"
     54 #include "strsuftoull.h"
     55 
     56 /*
     57  * list of supported file systems and dispatch functions
     58  */
     59 typedef struct {
     60 	const char	*type;
     61 	int		(*parse_options)(const char *, fsinfo_t *);
     62 	void		(*make_fs)(const char *, const char *, fsnode *,
     63 				fsinfo_t *);
     64 } fstype_t;
     65 
     66 static fstype_t fstypes[] = {
     67 	{ "ffs",	ffs_parse_opts,		ffs_makefs },
     68 	{ NULL	},
     69 };
     70 
     71 uint		debug;
     72 struct timespec	start_time;
     73 
     74 
     75 static	fstype_t *get_fstype(const char *);
     76 static	void	usage(void);
     77 int		main(int, char *[]);
     78 
     79 int
     80 main(int argc, char *argv[])
     81 {
     82 	struct timeval	 start;
     83 	fstype_t	*fstype;
     84 	fsinfo_t	 fsoptions;
     85 	fsnode		*root;
     86 	int	 	 ch, len;
     87 	char		*specfile;
     88 
     89 	setprogname(argv[0]);
     90 
     91 	debug = 0;
     92 	if ((fstype = get_fstype(DEFAULT_FSTYPE)) == NULL)
     93 		errx(1, "Unknown default fs type `%s'.", DEFAULT_FSTYPE);
     94 
     95 		/* set default fsoptions */
     96 	(void)memset(&fsoptions, 0, sizeof(fsoptions));
     97 	fsoptions.fd = -1;
     98 	fsoptions.sectorsize = -1;
     99 	fsoptions.bsize= -1;
    100 	fsoptions.fsize= -1;
    101 	fsoptions.cpg= -1;
    102 	fsoptions.density= -1;
    103 	fsoptions.ntracks= -1;
    104 	fsoptions.nsectors= -1;
    105 	fsoptions.rpm= -1;
    106 	fsoptions.minfree= -1;
    107 	fsoptions.optimization= -1;
    108 	fsoptions.maxcontig= -1;
    109 	fsoptions.rotdelay= -1;
    110 	fsoptions.maxbpg= -1;
    111 	fsoptions.nrpos= -1;
    112 	fsoptions.avgfilesize= -1;
    113 	fsoptions.avgfpdir= -1;
    114 
    115 	specfile = NULL;
    116 	if (gettimeofday(&start, NULL) == -1)
    117 		err(1, "Unable to get system time");
    118 
    119 	start_time.tv_sec = start.tv_sec;
    120 	start_time.tv_nsec = start.tv_usec * 1000;
    121 
    122 	while ((ch = getopt(argc, argv, "B:b:d:f:F:M:m:N:o:s:S:t:")) != -1) {
    123 		switch (ch) {
    124 
    125 		case 'B':
    126 			if (strcmp(optarg, "be") == 0 ||
    127 			    strcmp(optarg, "big") == 0) {
    128 #if BYTE_ORDER == LITTLE_ENDIAN
    129 				fsoptions.needswap = 1;
    130 #endif
    131 			} else if (strcmp(optarg, "le") == 0 ||
    132 			    strcmp(optarg, "little") == 0) {
    133 #if BYTE_ORDER == BIG_ENDIAN
    134 				fsoptions.needswap = 1;
    135 #endif
    136 			} else {
    137 				warnx("Invalid endian `%s'.", optarg);
    138 				usage();
    139 			}
    140 			break;
    141 
    142 		case 'b':
    143 			len = strlen(optarg) - 1;
    144 			if (optarg[len] == '%') {
    145 				optarg[len] = '\0';
    146 				fsoptions.freeblockpc =
    147 				    strsuftoull("free block percentage",
    148 					optarg, 0, 99);
    149 			} else {
    150 				fsoptions.freeblocks =
    151 				    strsuftoull("free blocks",
    152 					optarg, 0, LLONG_MAX);
    153 			}
    154 			break;
    155 
    156 		case 'd':
    157 			debug =
    158 			    (int)strsuftoull("debug mask", optarg, 0, UINT_MAX);
    159 			break;
    160 
    161 		case 'f':
    162 			len = strlen(optarg) - 1;
    163 			if (optarg[len] == '%') {
    164 				optarg[len] = '\0';
    165 				fsoptions.freefilepc =
    166 				    strsuftoull("free file percentage",
    167 					optarg, 0, 99);
    168 			} else {
    169 				fsoptions.freefiles =
    170 				    strsuftoull("free files",
    171 					optarg, 0, LLONG_MAX);
    172 			}
    173 			break;
    174 
    175 		case 'F':
    176 			specfile = optarg;
    177 			break;
    178 
    179 		case 'M':
    180 			fsoptions.minsize =
    181 			    strsuftoull("minimum size", optarg, 1LL, LLONG_MAX);
    182 			break;
    183 
    184 		case 'N':
    185 			if (! setup_getid(optarg))
    186 				errx(1,
    187 			    "Unable to use user and group databases in `%s'",
    188 				    optarg);
    189 			break;
    190 
    191 		case 'm':
    192 			fsoptions.maxsize =
    193 			    strsuftoull("maximum size", optarg, 1LL, LLONG_MAX);
    194 			break;
    195 
    196 		case 'o':
    197 		{
    198 			char *p;
    199 
    200 			while ((p = strsep(&optarg, ",")) != NULL) {
    201 				if (*p == '\0')
    202 					errx(1, "Empty option");
    203 				if (! fstype->parse_options(p, &fsoptions))
    204 					usage();
    205 			}
    206 			break;
    207 		}
    208 
    209 		case 's':
    210 			fsoptions.minsize = fsoptions.maxsize =
    211 			    strsuftoull("size", optarg, 1LL, LLONG_MAX);
    212 			break;
    213 
    214 		case 'S':
    215 			fsoptions.sectorsize =
    216 			    (int)strsuftoull("sector size", optarg,
    217 				1LL, INT_MAX);
    218 			break;
    219 
    220 		case 't':
    221 			if ((fstype = get_fstype(optarg)) == NULL)
    222 				errx(1, "Unknown fs type `%s'.", optarg);
    223 			break;
    224 
    225 		case '?':
    226 		default:
    227 			usage();
    228 			/* NOTREACHED */
    229 
    230 		}
    231 	}
    232 	if (debug) {
    233 		printf("debug mask: 0x%08x\n", debug);
    234 		printf("start time: %ld.%ld, %s",
    235 		    (long)start_time.tv_sec, (long)start_time.tv_nsec,
    236 		    ctime(&start_time.tv_sec));
    237 	}
    238 	argc -= optind;
    239 	argv += optind;
    240 
    241 	if (argc != 2)
    242 		usage();
    243 
    244 				/* walk the tree */
    245 	TIMER_START(start);
    246 	root = walk_dir(argv[1], NULL);
    247 	TIMER_RESULTS(start, "walk_dir");
    248 
    249 	if (specfile) {		/* apply a specfile */
    250 		TIMER_START(start);
    251 		apply_specfile(specfile, argv[1], root);
    252 		TIMER_RESULTS(start, "apply_specfile");
    253 	}
    254 
    255 	if (debug & DEBUG_DUMP_FSNODES) {
    256 		printf("\nparent: %s\n", argv[1]);
    257 		dump_fsnodes(".", root);
    258 		putchar('\n');
    259 	}
    260 
    261 				/* build the file system */
    262 	TIMER_START(start);
    263 	fstype->make_fs(argv[0], argv[1], root, &fsoptions);
    264 	TIMER_RESULTS(start, "make_fs");
    265 
    266 	exit(0);
    267 	/* NOTREACHED */
    268 }
    269 
    270 
    271 int
    272 set_option(option_t *options, const char *var, const char *val)
    273 {
    274 	int	i;
    275 
    276 	for (i = 0; options[i].name != NULL; i++) {
    277 		if (strcmp(options[i].name, var) != 0)
    278 			continue;
    279 		*options[i].value = (int)strsuftoull(options[i].desc, val,
    280 		    options[i].minimum, options[i].maximum);
    281 		return (1);
    282 	}
    283 	warnx("Unknown option `%s'", var);
    284 	return (0);
    285 }
    286 
    287 
    288 static fstype_t *
    289 get_fstype(const char *type)
    290 {
    291 	int i;
    292 
    293 	for (i = 0; fstypes[i].type != NULL; i++)
    294 		if (strcmp(fstypes[i].type, type) == 0)
    295 			return (&fstypes[i]);
    296 	return (NULL);
    297 }
    298 
    299 static void
    300 usage(void)
    301 {
    302 	const char *prog;
    303 
    304 	prog = getprogname();
    305 	fprintf(stderr,
    306 "Usage: %s [-t fs-type] [-o fs-options] [-d debug-mask] [-B endian]\n"
    307 "\t[-S sector-size] [-M minimum-size] [-m maximum-size] [-s image-size]\n"
    308 "\t[-b free-blocks] [-f free-files] [-F mtree-specfile] [-N userdb-dir]\n"
    309 "\timage-file directory\n",
    310 	    prog);
    311 	exit(1);
    312 }
    313