| File: | src/sbin/newfs_msdos/newfs_msdos.c |
| Warning: | line 661, column 12 Potential leak of memory pointed to by 'img' |
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| 1 | /* $OpenBSD: newfs_msdos.c,v 1.28 2021/07/11 15:39:58 kettenis Exp $ */ | ||||||||
| 2 | |||||||||
| 3 | /* | ||||||||
| 4 | * Copyright (c) 1998 Robert Nordier | ||||||||
| 5 | * All rights reserved. | ||||||||
| 6 | * | ||||||||
| 7 | * Redistribution and use in source and binary forms, with or without | ||||||||
| 8 | * modification, are permitted provided that the following conditions | ||||||||
| 9 | * are met: | ||||||||
| 10 | * 1. Redistributions of source code must retain the above copyright | ||||||||
| 11 | * notice, this list of conditions and the following disclaimer. | ||||||||
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | ||||||||
| 13 | * notice, this list of conditions and the following disclaimer in | ||||||||
| 14 | * the documentation and/or other materials provided with the | ||||||||
| 15 | * distribution. | ||||||||
| 16 | * | ||||||||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS | ||||||||
| 18 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||||||||
| 19 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||||||||
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY | ||||||||
| 21 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||||||||
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE | ||||||||
| 23 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | ||||||||
| 24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER | ||||||||
| 25 | * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | ||||||||
| 26 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | ||||||||
| 27 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||||||
| 28 | */ | ||||||||
| 29 | |||||||||
| 30 | #include <sys/param.h> /* powerof2 */ | ||||||||
| 31 | #include <sys/stat.h> | ||||||||
| 32 | #include <sys/disklabel.h> | ||||||||
| 33 | #include <sys/ioctl.h> | ||||||||
| 34 | #include <sys/dkio.h> | ||||||||
| 35 | #include <sys/mount.h> | ||||||||
| 36 | |||||||||
| 37 | #include <ctype.h> | ||||||||
| 38 | #include <err.h> | ||||||||
| 39 | #include <errno(*__errno()).h> | ||||||||
| 40 | #include <fcntl.h> | ||||||||
| 41 | #include <paths.h> | ||||||||
| 42 | #include <stdio.h> | ||||||||
| 43 | #include <stdlib.h> | ||||||||
| 44 | #include <string.h> | ||||||||
| 45 | #include <unistd.h> | ||||||||
| 46 | #include <limits.h> | ||||||||
| 47 | #include <util.h> | ||||||||
| 48 | |||||||||
| 49 | #define MINIMUM(a, b)(((a) < (b)) ? (a) : (b)) (((a) < (b)) ? (a) : (b)) | ||||||||
| 50 | #define MAXIMUM(a, b)(((a) > (b)) ? (a) : (b)) (((a) > (b)) ? (a) : (b)) | ||||||||
| 51 | |||||||||
| 52 | #define MAXU160xffff 0xffff /* maximum unsigned 16-bit quantity */ | ||||||||
| 53 | #define BPN4 4 /* bits per nibble */ | ||||||||
| 54 | #define NPB2 2 /* nibbles per byte */ | ||||||||
| 55 | |||||||||
| 56 | #define DOSMAGIC0xaa55 0xaa55 /* DOS magic number */ | ||||||||
| 57 | #define MINBPS512 512 /* minimum bytes per sector */ | ||||||||
| 58 | #define MAXSPC128 128 /* maximum sectors per cluster */ | ||||||||
| 59 | #define MAXNFT16 16 /* maximum number of FATs */ | ||||||||
| 60 | #define DEFBLK4096 4096 /* default block size */ | ||||||||
| 61 | #define DEFBLK162048 2048 /* default block size FAT16 */ | ||||||||
| 62 | #define DEFRDE512 512 /* default root directory entries */ | ||||||||
| 63 | #define RESFTE2 2 /* reserved FAT entries */ | ||||||||
| 64 | #define MINCLS121 1 /* minimum FAT12 clusters */ | ||||||||
| 65 | #define MINCLS160xff5 0xff5 /* minimum FAT16 clusters */ | ||||||||
| 66 | #define MINCLS320xfff5 0xfff5 /* minimum FAT32 clusters */ | ||||||||
| 67 | #define MAXCLS120xff4 0xff4 /* maximum FAT12 clusters */ | ||||||||
| 68 | #define MAXCLS160xfff4 0xfff4 /* maximum FAT16 clusters */ | ||||||||
| 69 | #define MAXCLS320xffffff4 0xffffff4 /* maximum FAT32 clusters */ | ||||||||
| 70 | |||||||||
| 71 | #define mincls(fat)((fat) == 12 ? 1 : (fat) == 16 ? 0xff5 : 0xfff5) ((fat) == 12 ? MINCLS121 : \ | ||||||||
| 72 | (fat) == 16 ? MINCLS160xff5 : \ | ||||||||
| 73 | MINCLS320xfff5) | ||||||||
| 74 | |||||||||
| 75 | #define maxcls(fat)((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4) ((fat) == 12 ? MAXCLS120xff4 : \ | ||||||||
| 76 | (fat) == 16 ? MAXCLS160xfff4 : \ | ||||||||
| 77 | MAXCLS320xffffff4) | ||||||||
| 78 | |||||||||
| 79 | #define mk1(p, x)(p) = (u_int8_t)(x) \ | ||||||||
| 80 | (p) = (u_int8_t)(x) | ||||||||
| 81 | |||||||||
| 82 | #define mk2(p, x)(p)[0] = (u_int8_t)(x), (p)[1] = (u_int8_t)((x) >> 010) \ | ||||||||
| 83 | (p)[0] = (u_int8_t)(x), \ | ||||||||
| 84 | (p)[1] = (u_int8_t)((x) >> 010) | ||||||||
| 85 | |||||||||
| 86 | #define mk4(p, x)(p)[0] = (u_int8_t)(x), (p)[1] = (u_int8_t)((x) >> 010) , (p)[2] = (u_int8_t)((x) >> 020), (p)[3] = (u_int8_t)( (x) >> 030) \ | ||||||||
| 87 | (p)[0] = (u_int8_t)(x), \ | ||||||||
| 88 | (p)[1] = (u_int8_t)((x) >> 010), \ | ||||||||
| 89 | (p)[2] = (u_int8_t)((x) >> 020), \ | ||||||||
| 90 | (p)[3] = (u_int8_t)((x) >> 030) | ||||||||
| 91 | |||||||||
| 92 | #define argto1(arg, lo, msg)argtou(arg, lo, 0xff, msg) argtou(arg, lo, 0xff, msg) | ||||||||
| 93 | #define argto2(arg, lo, msg)argtou(arg, lo, 0xffff, msg) argtou(arg, lo, 0xffff, msg) | ||||||||
| 94 | #define argto4(arg, lo, msg)argtou(arg, lo, 0xffffffff, msg) argtou(arg, lo, 0xffffffff, msg) | ||||||||
| 95 | #define argtox(arg, lo, msg)argtou(arg, lo, (2147483647 *2U +1U), msg) argtou(arg, lo, UINT_MAX(2147483647 *2U +1U), msg) | ||||||||
| 96 | |||||||||
| 97 | struct bs { | ||||||||
| 98 | u_int8_t jmp[3]; /* bootstrap entry point */ | ||||||||
| 99 | u_int8_t oem[8]; /* OEM name and version */ | ||||||||
| 100 | }; | ||||||||
| 101 | |||||||||
| 102 | struct bsbpb { | ||||||||
| 103 | u_int8_t bps[2]; /* bytes per sector */ | ||||||||
| 104 | u_int8_t spc; /* sectors per cluster */ | ||||||||
| 105 | u_int8_t res[2]; /* reserved sectors */ | ||||||||
| 106 | u_int8_t nft; /* number of FATs */ | ||||||||
| 107 | u_int8_t rde[2]; /* root directory entries */ | ||||||||
| 108 | u_int8_t sec[2]; /* total sectors */ | ||||||||
| 109 | u_int8_t mid; /* media descriptor */ | ||||||||
| 110 | u_int8_t spf[2]; /* sectors per FAT */ | ||||||||
| 111 | u_int8_t spt[2]; /* sectors per track */ | ||||||||
| 112 | u_int8_t hds[2]; /* drive heads */ | ||||||||
| 113 | u_int8_t hid[4]; /* hidden sectors */ | ||||||||
| 114 | u_int8_t bsec[4]; /* big total sectors */ | ||||||||
| 115 | }; | ||||||||
| 116 | |||||||||
| 117 | struct bsxbpb { | ||||||||
| 118 | u_int8_t bspf[4]; /* big sectors per FAT */ | ||||||||
| 119 | u_int8_t xflg[2]; /* FAT control flags */ | ||||||||
| 120 | u_int8_t vers[2]; /* file system version */ | ||||||||
| 121 | u_int8_t rdcl[4]; /* root directory start cluster */ | ||||||||
| 122 | u_int8_t infs[2]; /* file system info sector */ | ||||||||
| 123 | u_int8_t bkbs[2]; /* backup boot sector */ | ||||||||
| 124 | u_int8_t rsvd[12]; /* reserved */ | ||||||||
| 125 | }; | ||||||||
| 126 | |||||||||
| 127 | struct bsx { | ||||||||
| 128 | u_int8_t drv; /* drive number */ | ||||||||
| 129 | u_int8_t rsvd; /* reserved */ | ||||||||
| 130 | u_int8_t sig; /* extended boot signature */ | ||||||||
| 131 | u_int8_t volid[4]; /* volume ID number */ | ||||||||
| 132 | u_int8_t label[11]; /* volume label */ | ||||||||
| 133 | u_int8_t type[8]; /* file system type */ | ||||||||
| 134 | }; | ||||||||
| 135 | |||||||||
| 136 | struct de { | ||||||||
| 137 | u_int8_t namext[11]; /* name and extension */ | ||||||||
| 138 | u_int8_t attr; /* attributes */ | ||||||||
| 139 | u_int8_t rsvd[10]; /* reserved */ | ||||||||
| 140 | u_int8_t time[2]; /* creation time */ | ||||||||
| 141 | u_int8_t date[2]; /* creation date */ | ||||||||
| 142 | u_int8_t clus[2]; /* starting cluster */ | ||||||||
| 143 | u_int8_t size[4]; /* size */ | ||||||||
| 144 | }; | ||||||||
| 145 | |||||||||
| 146 | struct bpb { | ||||||||
| 147 | u_int bps; /* bytes per sector */ | ||||||||
| 148 | u_int spc; /* sectors per cluster */ | ||||||||
| 149 | u_int res; /* reserved sectors */ | ||||||||
| 150 | u_int nft; /* number of FATs */ | ||||||||
| 151 | u_int rde; /* root directory entries */ | ||||||||
| 152 | u_int sec; /* total sectors */ | ||||||||
| 153 | u_int mid; /* media descriptor */ | ||||||||
| 154 | u_int spf; /* sectors per FAT */ | ||||||||
| 155 | u_int spt; /* sectors per track */ | ||||||||
| 156 | u_int hds; /* drive heads */ | ||||||||
| 157 | u_int hid; /* hidden sectors */ | ||||||||
| 158 | u_int bsec; /* big total sectors */ | ||||||||
| 159 | u_int bspf; /* big sectors per FAT */ | ||||||||
| 160 | u_int rdcl; /* root directory start cluster */ | ||||||||
| 161 | u_int infs; /* file system info sector */ | ||||||||
| 162 | u_int bkbs; /* backup boot sector */ | ||||||||
| 163 | }; | ||||||||
| 164 | |||||||||
| 165 | static struct { | ||||||||
| 166 | const char *name; | ||||||||
| 167 | struct bpb bpb; | ||||||||
| 168 | } stdfmt[] = { | ||||||||
| 169 | {"160", {512, 1, 1, 2, 64, 320, 0xfe, 1, 8, 1}}, | ||||||||
| 170 | {"180", {512, 1, 1, 2, 64, 360, 0xfc, 2, 9, 1}}, | ||||||||
| 171 | {"320", {512, 2, 1, 2, 112, 640, 0xff, 1, 8, 2}}, | ||||||||
| 172 | {"360", {512, 2, 1, 2, 112, 720, 0xfd, 2, 9, 2}}, | ||||||||
| 173 | {"720", {512, 2, 1, 2, 112, 1440, 0xf9, 3, 9, 2}}, | ||||||||
| 174 | {"1200", {512, 1, 1, 2, 224, 2400, 0xf9, 7, 15, 2}}, | ||||||||
| 175 | {"1440", {512, 1, 1, 2, 224, 2880, 0xf0, 9, 18, 2}}, | ||||||||
| 176 | {"2880", {512, 2, 1, 2, 240, 5760, 0xf0, 9, 36, 2}} | ||||||||
| 177 | }; | ||||||||
| 178 | |||||||||
| 179 | static u_int8_t bootcode[] = { | ||||||||
| 180 | 0xfa, /* cli */ | ||||||||
| 181 | 0x31, 0xc0, /* xor ax,ax */ | ||||||||
| 182 | 0x8e, 0xd0, /* mov ss,ax */ | ||||||||
| 183 | 0xbc, 0x00, 0x7c, /* mov sp,7c00h */ | ||||||||
| 184 | 0xfb, /* sti */ | ||||||||
| 185 | 0x8e, 0xd8, /* mov ds,ax */ | ||||||||
| 186 | 0xe8, 0x00, 0x00, /* call $ + 3 */ | ||||||||
| 187 | 0x5e, /* pop si */ | ||||||||
| 188 | 0x83, 0xc6, 0x19, /* add si,+19h */ | ||||||||
| 189 | 0xbb, 0x07, 0x00, /* mov bx,0007h */ | ||||||||
| 190 | 0xfc, /* cld */ | ||||||||
| 191 | 0xac, /* lodsb */ | ||||||||
| 192 | 0x84, 0xc0, /* test al,al */ | ||||||||
| 193 | 0x74, 0x06, /* jz $ + 8 */ | ||||||||
| 194 | 0xb4, 0x0e, /* mov ah,0eh */ | ||||||||
| 195 | 0xcd, 0x10, /* int 10h */ | ||||||||
| 196 | 0xeb, 0xf5, /* jmp $ - 9 */ | ||||||||
| 197 | 0x30, 0xe4, /* xor ah,ah */ | ||||||||
| 198 | 0xcd, 0x16, /* int 16h */ | ||||||||
| 199 | 0xcd, 0x19, /* int 19h */ | ||||||||
| 200 | 0x0d, 0x0a, | ||||||||
| 201 | 'N', 'o', 'n', '-', 's', 'y', 's', 't', | ||||||||
| 202 | 'e', 'm', ' ', 'd', 'i', 's', 'k', | ||||||||
| 203 | 0x0d, 0x0a, | ||||||||
| 204 | 'P', 'r', 'e', 's', 's', ' ', 'a', 'n', | ||||||||
| 205 | 'y', ' ', 'k', 'e', 'y', ' ', 't', 'o', | ||||||||
| 206 | ' ', 'r', 'e', 'b', 'o', 'o', 't', | ||||||||
| 207 | 0x0d, 0x0a, | ||||||||
| 208 | 0 | ||||||||
| 209 | }; | ||||||||
| 210 | |||||||||
| 211 | static void check_mounted(const char *, mode_t); | ||||||||
| 212 | static void getstdfmt(const char *, struct bpb *); | ||||||||
| 213 | static void getdiskinfo(int, const char *, const char *, int, | ||||||||
| 214 | struct bpb *); | ||||||||
| 215 | static void print_bpb(struct bpb *); | ||||||||
| 216 | static u_int ckgeom(const char *, u_int, const char *); | ||||||||
| 217 | static u_int argtou(const char *, u_int, u_int, const char *); | ||||||||
| 218 | static int oklabel(const char *); | ||||||||
| 219 | static void mklabel(u_int8_t *, const char *); | ||||||||
| 220 | static void setstr(u_int8_t *, const char *, size_t); | ||||||||
| 221 | static __dead__attribute__((__noreturn__)) void usage(void); | ||||||||
| 222 | |||||||||
| 223 | /* | ||||||||
| 224 | * Construct a FAT12, FAT16, or FAT32 file system. | ||||||||
| 225 | */ | ||||||||
| 226 | int | ||||||||
| 227 | main(int argc, char *argv[]) | ||||||||
| 228 | { | ||||||||
| 229 | static char opts[] = "NB:F:I:L:O:S:a:b:c:e:f:h:i:k:m:n:o:qr:s:t:u:"; | ||||||||
| 230 | static const char *opt_B, *opt_L, *opt_O, *opt_f; | ||||||||
| 231 | static u_int opt_F, opt_I, opt_S, opt_a, opt_b, opt_c, opt_e; | ||||||||
| 232 | static u_int opt_h, opt_i, opt_k, opt_m, opt_n, opt_o, opt_r; | ||||||||
| 233 | static u_int opt_s, opt_u; | ||||||||
| 234 | static int opt_N; | ||||||||
| 235 | static int Iflag, mflag, oflag; | ||||||||
| 236 | char buf[PATH_MAX1024]; | ||||||||
| 237 | struct stat sb; | ||||||||
| 238 | struct timeval tv; | ||||||||
| 239 | struct bpb bpb; | ||||||||
| 240 | struct tm *tm; | ||||||||
| 241 | struct bs *bs; | ||||||||
| 242 | struct bsbpb *bsbpb; | ||||||||
| 243 | struct bsxbpb *bsxbpb; | ||||||||
| 244 | struct bsx *bsx; | ||||||||
| 245 | struct de *de; | ||||||||
| 246 | u_int8_t *img; | ||||||||
| 247 | const char *dtype, *bname; | ||||||||
| 248 | char *sname, *fname; | ||||||||
| 249 | ssize_t n; | ||||||||
| 250 | time_t now; | ||||||||
| 251 | u_int fat, bss, rds, cls, dir, lsn, x, x1, x2; | ||||||||
| 252 | int ch, fd, fd1; | ||||||||
| 253 | |||||||||
| 254 | if (pledge("stdio rpath wpath disklabel", NULL((void *)0)) == -1) | ||||||||
| |||||||||
| 255 | err(1, "pledge"); | ||||||||
| 256 | |||||||||
| 257 | while ((ch = getopt(argc, argv, opts)) != -1) | ||||||||
| 258 | switch (ch) { | ||||||||
| 259 | case 'N': | ||||||||
| 260 | opt_N = 1; | ||||||||
| 261 | break; | ||||||||
| 262 | case 'B': | ||||||||
| 263 | opt_B = optarg; | ||||||||
| 264 | break; | ||||||||
| 265 | case 'F': | ||||||||
| 266 | opt_F = strtonum(optarg, 1, INT_MAX2147483647, NULL((void *)0)); | ||||||||
| 267 | if (!(opt_F == 12 || opt_F == 16 || opt_F == 32)) | ||||||||
| 268 | errx(1, "%s: bad FAT type", optarg); | ||||||||
| 269 | break; | ||||||||
| 270 | case 'I': | ||||||||
| 271 | opt_I = argto4(optarg, 0, "volume ID")argtou(optarg, 0, 0xffffffff, "volume ID"); | ||||||||
| 272 | Iflag = 1; | ||||||||
| 273 | break; | ||||||||
| 274 | case 'L': | ||||||||
| 275 | if (!oklabel(optarg)) | ||||||||
| 276 | errx(1, "%s: bad volume label", optarg); | ||||||||
| 277 | opt_L = optarg; | ||||||||
| 278 | break; | ||||||||
| 279 | case 'O': | ||||||||
| 280 | if (strlen(optarg) > 8) | ||||||||
| 281 | errx(1, "%s: bad OEM string", optarg); | ||||||||
| 282 | opt_O = optarg; | ||||||||
| 283 | break; | ||||||||
| 284 | case 'S': | ||||||||
| 285 | opt_S = argto2(optarg, 1, "bytes/sector")argtou(optarg, 1, 0xffff, "bytes/sector"); | ||||||||
| 286 | break; | ||||||||
| 287 | case 'a': | ||||||||
| 288 | opt_a = argto4(optarg, 1, "sectors/FAT")argtou(optarg, 1, 0xffffffff, "sectors/FAT"); | ||||||||
| 289 | break; | ||||||||
| 290 | case 'b': | ||||||||
| 291 | opt_b = argtox(optarg, 1, "block size")argtou(optarg, 1, (2147483647 *2U +1U), "block size"); | ||||||||
| 292 | opt_c = 0; | ||||||||
| 293 | break; | ||||||||
| 294 | case 'c': | ||||||||
| 295 | opt_c = argto1(optarg, 1, "sectors/cluster")argtou(optarg, 1, 0xff, "sectors/cluster"); | ||||||||
| 296 | opt_b = 0; | ||||||||
| 297 | break; | ||||||||
| 298 | case 'e': | ||||||||
| 299 | opt_e = argto2(optarg, 1, "directory entries")argtou(optarg, 1, 0xffff, "directory entries"); | ||||||||
| 300 | break; | ||||||||
| 301 | case 'f': | ||||||||
| 302 | opt_f = optarg; | ||||||||
| 303 | break; | ||||||||
| 304 | case 'h': | ||||||||
| 305 | opt_h = argto2(optarg, 1, "drive heads")argtou(optarg, 1, 0xffff, "drive heads"); | ||||||||
| 306 | break; | ||||||||
| 307 | case 'i': | ||||||||
| 308 | opt_i = argto2(optarg, 1, "info sector")argtou(optarg, 1, 0xffff, "info sector"); | ||||||||
| 309 | break; | ||||||||
| 310 | case 'k': | ||||||||
| 311 | opt_k = argto2(optarg, 1, "backup sector")argtou(optarg, 1, 0xffff, "backup sector"); | ||||||||
| 312 | break; | ||||||||
| 313 | case 'm': | ||||||||
| 314 | opt_m = argto1(optarg, 0, "media descriptor")argtou(optarg, 0, 0xff, "media descriptor"); | ||||||||
| 315 | mflag = 1; | ||||||||
| 316 | break; | ||||||||
| 317 | case 'n': | ||||||||
| 318 | opt_n = argto1(optarg, 1, "number of FATs")argtou(optarg, 1, 0xff, "number of FATs"); | ||||||||
| 319 | break; | ||||||||
| 320 | case 'o': | ||||||||
| 321 | opt_o = argto4(optarg, 0, "hidden sectors")argtou(optarg, 0, 0xffffffff, "hidden sectors"); | ||||||||
| 322 | oflag = 1; | ||||||||
| 323 | break; | ||||||||
| 324 | case 'q': /* Compat with newfs -q */ | ||||||||
| 325 | break; | ||||||||
| 326 | case 'r': | ||||||||
| 327 | opt_r = argto2(optarg, 1, "reserved sectors")argtou(optarg, 1, 0xffff, "reserved sectors"); | ||||||||
| 328 | break; | ||||||||
| 329 | case 's': | ||||||||
| 330 | opt_s = argto4(optarg, 1, "file system size")argtou(optarg, 1, 0xffffffff, "file system size"); | ||||||||
| 331 | break; | ||||||||
| 332 | case 't': /* Compat with newfs -t */ | ||||||||
| 333 | break; | ||||||||
| 334 | case 'u': | ||||||||
| 335 | opt_u = argto2(optarg, 1, "sectors/track")argtou(optarg, 1, 0xffff, "sectors/track"); | ||||||||
| 336 | break; | ||||||||
| 337 | default: | ||||||||
| 338 | usage(); | ||||||||
| 339 | } | ||||||||
| 340 | argc -= optind; | ||||||||
| 341 | argv += optind; | ||||||||
| 342 | if (argc < 1 || argc > 2) | ||||||||
| 343 | usage(); | ||||||||
| 344 | sname = *argv++; | ||||||||
| 345 | dtype = *argv; | ||||||||
| 346 | if ((fd = opendev(sname, opt_N
| ||||||||
| 347 | fstat(fd, &sb)) | ||||||||
| 348 | err(1, "%s", fname); | ||||||||
| 349 | if (!opt_N
| ||||||||
| 350 | check_mounted(fname, sb.st_mode); | ||||||||
| 351 | if (S_ISBLK(sb.st_mode)((sb.st_mode & 0170000) == 0060000)) | ||||||||
| 352 | errx(1, "%s: block device", fname); | ||||||||
| 353 | if (!S_ISCHR(sb.st_mode)((sb.st_mode & 0170000) == 0020000)) | ||||||||
| 354 | warnx("warning: %s is not a character device", fname); | ||||||||
| 355 | memset(&bpb, 0, sizeof(bpb)); | ||||||||
| 356 | if (opt_f
| ||||||||
| 357 | getstdfmt(opt_f, &bpb); | ||||||||
| 358 | bpb.bsec = bpb.sec; | ||||||||
| 359 | bpb.sec = 0; | ||||||||
| 360 | bpb.bspf = bpb.spf; | ||||||||
| 361 | bpb.spf = 0; | ||||||||
| 362 | } | ||||||||
| 363 | if (opt_h
| ||||||||
| 364 | bpb.hds = opt_h; | ||||||||
| 365 | if (opt_u
| ||||||||
| 366 | bpb.spt = opt_u; | ||||||||
| 367 | if (opt_S
| ||||||||
| 368 | bpb.bps = opt_S; | ||||||||
| 369 | if (opt_s
| ||||||||
| 370 | bpb.bsec = opt_s; | ||||||||
| 371 | if (oflag
| ||||||||
| 372 | bpb.hid = opt_o; | ||||||||
| 373 | if (!(opt_f
| ||||||||
| 374 | getdiskinfo(fd, fname, dtype, oflag, &bpb); | ||||||||
| 375 | if (!powerof2(bpb.bps)((((bpb.bps)-1)&(bpb.bps))==0)) | ||||||||
| 376 | errx(1, "bytes/sector (%u) is not a power of 2", bpb.bps); | ||||||||
| 377 | if (bpb.bps < MINBPS512) | ||||||||
| 378 | errx(1, "bytes/sector (%u) is too small; minimum is %u", | ||||||||
| 379 | bpb.bps, MINBPS512); | ||||||||
| 380 | if (!(fat = opt_F)) { | ||||||||
| 381 | if (opt_f
| ||||||||
| 382 | fat = 12; | ||||||||
| 383 | else if (!opt_e
| ||||||||
| 384 | fat = 32; | ||||||||
| 385 | } | ||||||||
| 386 | if ((fat
| ||||||||
| 387 | errx(1, "-%c is not a legal FAT%s option", | ||||||||
| 388 | fat == 32 ? 'e' : opt_i ? 'i' : 'k', | ||||||||
| 389 | fat == 32 ? "32" : "12/16"); | ||||||||
| 390 | if (opt_f
| ||||||||
| 391 | bpb.rde = 0; | ||||||||
| 392 | if (opt_b
| ||||||||
| 393 | if (!powerof2(opt_b)((((opt_b)-1)&(opt_b))==0)) | ||||||||
| 394 | errx(1, "block size (%u) is not a power of 2", opt_b); | ||||||||
| 395 | if (opt_b < bpb.bps) | ||||||||
| 396 | errx(1, "block size (%u) is too small; minimum is %u", | ||||||||
| 397 | opt_b, bpb.bps); | ||||||||
| 398 | if (opt_b > bpb.bps * MAXSPC128) | ||||||||
| 399 | errx(1, "block size (%u) is too large; maximum is %u", | ||||||||
| 400 | opt_b, bpb.bps * MAXSPC128); | ||||||||
| 401 | bpb.spc = opt_b / bpb.bps; | ||||||||
| 402 | } | ||||||||
| 403 | if (opt_c
| ||||||||
| 404 | if (!powerof2(opt_c)((((opt_c)-1)&(opt_c))==0)) | ||||||||
| 405 | errx(1, "sectors/cluster (%u) is not a power of 2", opt_c); | ||||||||
| 406 | bpb.spc = opt_c; | ||||||||
| 407 | } | ||||||||
| 408 | if (opt_r
| ||||||||
| 409 | bpb.res = opt_r; | ||||||||
| 410 | if (opt_n
| ||||||||
| 411 | if (opt_n > MAXNFT16) | ||||||||
| 412 | errx(1, "number of FATs (%u) is too large; maximum is %u", | ||||||||
| 413 | opt_n, MAXNFT16); | ||||||||
| 414 | bpb.nft = opt_n; | ||||||||
| 415 | } | ||||||||
| 416 | if (opt_e
| ||||||||
| 417 | bpb.rde = opt_e; | ||||||||
| 418 | if (mflag
| ||||||||
| 419 | if (opt_m < 0xf0) | ||||||||
| 420 | errx(1, "illegal media descriptor (%#x)", opt_m); | ||||||||
| 421 | bpb.mid = opt_m; | ||||||||
| 422 | } | ||||||||
| 423 | if (opt_a
| ||||||||
| 424 | bpb.bspf = opt_a; | ||||||||
| 425 | if (opt_i
| ||||||||
| 426 | bpb.infs = opt_i; | ||||||||
| 427 | if (opt_k
| ||||||||
| 428 | bpb.bkbs = opt_k; | ||||||||
| 429 | bss = 1; | ||||||||
| 430 | bname = NULL((void *)0); | ||||||||
| 431 | fd1 = -1; | ||||||||
| 432 | if (opt_B
| ||||||||
| 433 | bname = opt_B; | ||||||||
| 434 | if (!strchr(bname, '/')) { | ||||||||
| 435 | snprintf(buf, sizeof(buf), "/boot/%s", bname); | ||||||||
| 436 | if (!(bname = strdup(buf))) | ||||||||
| 437 | err(1, NULL((void *)0)); | ||||||||
| 438 | } | ||||||||
| 439 | if ((fd1 = open(bname, O_RDONLY0x0000)) == -1 || fstat(fd1, &sb)) | ||||||||
| 440 | err(1, "%s", bname); | ||||||||
| 441 | if (!S_ISREG(sb.st_mode)((sb.st_mode & 0170000) == 0100000) || sb.st_size % bpb.bps || | ||||||||
| 442 | sb.st_size < bpb.bps || sb.st_size > bpb.bps * MAXU160xffff) | ||||||||
| 443 | errx(1, "%s: inappropriate file type or format", bname); | ||||||||
| 444 | bss = sb.st_size / bpb.bps; | ||||||||
| 445 | } | ||||||||
| 446 | if (!bpb.nft) | ||||||||
| 447 | bpb.nft = 2; | ||||||||
| 448 | if (!fat
| ||||||||
| 449 | if (bpb.bsec < (bpb.res ? bpb.res : bss) + | ||||||||
| 450 | howmany((RESFTE + (bpb.spc ? MINCLS16 : MAXCLS12 + 1)) *((((2 + (bpb.spc ? 0xff5 : 0xff4 + 1)) * ((bpb.spc ? 16 : 12) / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)) | ||||||||
| 451 | ((bpb.spc ? 16 : 12) / BPN), bpb.bps * NPB)((((2 + (bpb.spc ? 0xff5 : 0xff4 + 1)) * ((bpb.spc ? 16 : 12) / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)) * | ||||||||
| 452 | bpb.nft + | ||||||||
| 453 | howmany(bpb.rde ? bpb.rde : DEFRDE,(((bpb.rde ? bpb.rde : 512) + ((bpb.bps / sizeof(struct de)) - 1)) / (bpb.bps / sizeof(struct de))) | ||||||||
| 454 | bpb.bps / sizeof(struct de))(((bpb.rde ? bpb.rde : 512) + ((bpb.bps / sizeof(struct de)) - 1)) / (bpb.bps / sizeof(struct de))) + | ||||||||
| 455 | (bpb.spc
| ||||||||
| 456 | (bpb.spc
| ||||||||
| 457 | fat = 12; | ||||||||
| 458 | else if (bpb.rde
| ||||||||
| 459 | (bpb.res
| ||||||||
| 460 | howmany((RESFTE + MAXCLS16) * 2, bpb.bps)((((2 + 0xfff4) * 2) + ((bpb.bps) - 1)) / (bpb.bps)) * bpb.nft + | ||||||||
| 461 | howmany(DEFRDE, bpb.bps / sizeof(struct de))(((512) + ((bpb.bps / sizeof(struct de)) - 1)) / (bpb.bps / sizeof (struct de))) + | ||||||||
| 462 | (MAXCLS160xfff4 + 1) * | ||||||||
| 463 | (bpb.spc
| ||||||||
| 464 | fat = 16; | ||||||||
| 465 | else | ||||||||
| 466 | fat = 32; | ||||||||
| 467 | } | ||||||||
| 468 | x = bss; | ||||||||
| 469 | if (fat
| ||||||||
| 470 | if (!bpb.infs) { | ||||||||
| 471 | if (x == MAXU160xffff || x == bpb.bkbs) | ||||||||
| 472 | errx(1, "no room for info sector"); | ||||||||
| 473 | bpb.infs = x; | ||||||||
| 474 | } | ||||||||
| 475 | if (bpb.infs != MAXU160xffff && x <= bpb.infs) | ||||||||
| 476 | x = bpb.infs + 1; | ||||||||
| 477 | if (!bpb.bkbs) { | ||||||||
| 478 | if (x == MAXU160xffff) | ||||||||
| 479 | errx(1, "no room for backup sector"); | ||||||||
| 480 | bpb.bkbs = x; | ||||||||
| 481 | } else if (bpb.bkbs != MAXU160xffff && bpb.bkbs == bpb.infs) | ||||||||
| 482 | errx(1, "backup sector would overwrite info sector"); | ||||||||
| 483 | if (bpb.bkbs
| ||||||||
| 484 | x = bpb.bkbs + 1; | ||||||||
| 485 | } | ||||||||
| 486 | if (!bpb.res
| ||||||||
| 487 | bpb.res = fat
: (4)))) ? (x) : ((((16384 / bpb.bps) > (4)) ? (16384 / bpb .bps) : (4)))) : x; | ||||||||
| 488 | else if (bpb.res < x) | ||||||||
| 489 | errx(1, "too few reserved sectors"); | ||||||||
| 490 | if (fat
| ||||||||
| 491 | bpb.rde = DEFRDE512; | ||||||||
| 492 | rds = howmany(bpb.rde, bpb.bps / sizeof(struct de))(((bpb.rde) + ((bpb.bps / sizeof(struct de)) - 1)) / (bpb.bps / sizeof(struct de))); | ||||||||
| 493 | if (!bpb.spc
| ||||||||
| 494 | for (bpb.spc = howmany(fat == 16 ? DEFBLK16 : DEFBLK, bpb.bps)(((fat == 16 ? 2048 : 4096) + ((bpb.bps) - 1)) / (bpb.bps)); | ||||||||
| 495 | bpb.spc < MAXSPC128 && | ||||||||
| 496 | bpb.res + | ||||||||
| 497 | howmany((RESFTE + maxcls(fat)) * (fat / BPN),((((2 + ((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4 )) * (fat / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)) | ||||||||
| 498 | bpb.bps * NPB)((((2 + ((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4 )) * (fat / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)) * bpb.nft + | ||||||||
| 499 | rds + | ||||||||
| 500 | (u_int64_t)(maxcls(fat)((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4) + 1) * bpb.spc <= bpb.bsec; | ||||||||
| 501 | bpb.spc <<= 1); | ||||||||
| 502 | if (fat
| ||||||||
| 503 | errx(1, "too many sectors/FAT for FAT12/16"); | ||||||||
| 504 | x1 = bpb.res + rds; | ||||||||
| 505 | x = bpb.bspf ? bpb.bspf : 1; | ||||||||
| 506 | if (x1 + (u_int64_t)x * bpb.nft > bpb.bsec) | ||||||||
| 507 | errx(1, "meta data exceeds file system size"); | ||||||||
| 508 | x1 += x * bpb.nft; | ||||||||
| 509 | x = (u_int64_t)(bpb.bsec - x1) * bpb.bps * NPB2 / | ||||||||
| 510 | (bpb.spc * bpb.bps * NPB2 + fat / BPN4 * bpb.nft); | ||||||||
| 511 | x2 = howmany((RESFTE + MINIMUM(x, maxcls(fat))) * (fat / BPN),((((2 + (((x) < (((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4))) ? (x) : (((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4)))) * (fat / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)) | ||||||||
| 512 | bpb.bps * NPB)((((2 + (((x) < (((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4))) ? (x) : (((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4)))) * (fat / 4)) + ((bpb.bps * 2) - 1)) / (bpb.bps * 2)); | ||||||||
| 513 | if (!bpb.bspf
| ||||||||
| 514 | bpb.bspf = x2; | ||||||||
| 515 | x1 += (bpb.bspf - 1) * bpb.nft; | ||||||||
| 516 | } | ||||||||
| 517 | cls = (bpb.bsec - x1) / bpb.spc; | ||||||||
| 518 | x = (u_int64_t)bpb.bspf * bpb.bps * NPB2 / (fat / BPN4) - RESFTE2; | ||||||||
| 519 | if (cls > x) | ||||||||
| 520 | cls = x; | ||||||||
| 521 | if (bpb.bspf < x2
| ||||||||
| 522 | warnx("warning: sectors/FAT limits file system to %u clusters", | ||||||||
| 523 | cls); | ||||||||
| 524 | if (cls < mincls(fat)((fat) == 12 ? 1 : (fat) == 16 ? 0xff5 : 0xfff5)) | ||||||||
| 525 | errx(1, "%u clusters too few clusters for FAT%u, need %u", cls, fat, | ||||||||
| 526 | mincls(fat)((fat) == 12 ? 1 : (fat) == 16 ? 0xff5 : 0xfff5)); | ||||||||
| 527 | if (cls > maxcls(fat)((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4)) { | ||||||||
| 528 | cls = maxcls(fat)((fat) == 12 ? 0xff4 : (fat) == 16 ? 0xfff4 : 0xffffff4); | ||||||||
| 529 | bpb.bsec = x1 + (cls + 1) * bpb.spc - 1; | ||||||||
| 530 | warnx("warning: FAT type limits file system to %u sectors", | ||||||||
| 531 | bpb.bsec); | ||||||||
| 532 | } | ||||||||
| 533 | printf("%s: %u sector%s in %u FAT%u cluster%s " | ||||||||
| 534 | "(%u bytes/cluster)\n", fname, cls * bpb.spc, | ||||||||
| 535 | cls * bpb.spc == 1 ? "" : "s", cls, fat, | ||||||||
| 536 | cls
| ||||||||
| 537 | if (!bpb.mid) | ||||||||
| 538 | bpb.mid = !bpb.hid ? 0xf0 : 0xf8; | ||||||||
| 539 | if (fat
| ||||||||
| 540 | bpb.rdcl = RESFTE2; | ||||||||
| 541 | if (bpb.hid + bpb.bsec <= MAXU160xffff) { | ||||||||
| 542 | bpb.sec = bpb.bsec; | ||||||||
| 543 | bpb.bsec = 0; | ||||||||
| 544 | } | ||||||||
| 545 | if (fat
| ||||||||
| 546 | bpb.spf = bpb.bspf; | ||||||||
| 547 | bpb.bspf = 0; | ||||||||
| 548 | } | ||||||||
| 549 | print_bpb(&bpb); | ||||||||
| 550 | if (!opt_N
| ||||||||
| 551 | gettimeofday(&tv, NULL((void *)0)); | ||||||||
| 552 | now = tv.tv_sec; | ||||||||
| 553 | tm = localtime(&now); | ||||||||
| 554 | if (!(img = malloc(bpb.bps))) | ||||||||
| 555 | err(1, NULL((void *)0)); | ||||||||
| 556 | dir = bpb.res + (bpb.spf
| ||||||||
| 557 | for (lsn = 0; lsn < dir + (fat
| ||||||||
| 558 | x = lsn; | ||||||||
| 559 | if (opt_B && | ||||||||
| 560 | fat == 32 && bpb.bkbs != MAXU160xffff && | ||||||||
| 561 | bss <= bpb.bkbs && x >= bpb.bkbs) { | ||||||||
| 562 | x -= bpb.bkbs; | ||||||||
| 563 | if (!x && lseek(fd1, 0, SEEK_SET0)) | ||||||||
| 564 | err(1, "%s", bname); | ||||||||
| 565 | } | ||||||||
| 566 | if (opt_B && x < bss) { | ||||||||
| 567 | if ((n = read(fd1, img, bpb.bps)) == -1) | ||||||||
| 568 | err(1, "%s", bname); | ||||||||
| 569 | if (n != bpb.bps) | ||||||||
| 570 | errx(1, "%s: can't read sector %u", bname, x); | ||||||||
| 571 | } else | ||||||||
| 572 | memset(img, 0, bpb.bps); | ||||||||
| 573 | if (!lsn || | ||||||||
| 574 | (fat == 32 && bpb.bkbs != MAXU160xffff && lsn == bpb.bkbs)) { | ||||||||
| 575 | x1 = sizeof(struct bs); | ||||||||
| 576 | bsbpb = (struct bsbpb *)(img + x1); | ||||||||
| 577 | mk2(bsbpb->bps, bpb.bps)(bsbpb->bps)[0] = (u_int8_t)(bpb.bps), (bsbpb->bps)[1] = (u_int8_t)((bpb.bps) >> 010); | ||||||||
| 578 | mk1(bsbpb->spc, bpb.spc)(bsbpb->spc) = (u_int8_t)(bpb.spc); | ||||||||
| 579 | mk2(bsbpb->res, bpb.res)(bsbpb->res)[0] = (u_int8_t)(bpb.res), (bsbpb->res)[1] = (u_int8_t)((bpb.res) >> 010); | ||||||||
| 580 | mk1(bsbpb->nft, bpb.nft)(bsbpb->nft) = (u_int8_t)(bpb.nft); | ||||||||
| 581 | mk2(bsbpb->rde, bpb.rde)(bsbpb->rde)[0] = (u_int8_t)(bpb.rde), (bsbpb->rde)[1] = (u_int8_t)((bpb.rde) >> 010); | ||||||||
| 582 | mk2(bsbpb->sec, bpb.sec)(bsbpb->sec)[0] = (u_int8_t)(bpb.sec), (bsbpb->sec)[1] = (u_int8_t)((bpb.sec) >> 010); | ||||||||
| 583 | mk1(bsbpb->mid, bpb.mid)(bsbpb->mid) = (u_int8_t)(bpb.mid); | ||||||||
| 584 | mk2(bsbpb->spf, bpb.spf)(bsbpb->spf)[0] = (u_int8_t)(bpb.spf), (bsbpb->spf)[1] = (u_int8_t)((bpb.spf) >> 010); | ||||||||
| 585 | mk2(bsbpb->spt, bpb.spt)(bsbpb->spt)[0] = (u_int8_t)(bpb.spt), (bsbpb->spt)[1] = (u_int8_t)((bpb.spt) >> 010); | ||||||||
| 586 | mk2(bsbpb->hds, bpb.hds)(bsbpb->hds)[0] = (u_int8_t)(bpb.hds), (bsbpb->hds)[1] = (u_int8_t)((bpb.hds) >> 010); | ||||||||
| 587 | mk4(bsbpb->hid, bpb.hid)(bsbpb->hid)[0] = (u_int8_t)(bpb.hid), (bsbpb->hid)[1] = (u_int8_t)((bpb.hid) >> 010), (bsbpb->hid)[2] = (u_int8_t )((bpb.hid) >> 020), (bsbpb->hid)[3] = (u_int8_t)((bpb .hid) >> 030); | ||||||||
| 588 | mk4(bsbpb->bsec, bpb.bsec)(bsbpb->bsec)[0] = (u_int8_t)(bpb.bsec), (bsbpb->bsec)[ 1] = (u_int8_t)((bpb.bsec) >> 010), (bsbpb->bsec)[2] = (u_int8_t)((bpb.bsec) >> 020), (bsbpb->bsec)[3] = (u_int8_t)((bpb.bsec) >> 030); | ||||||||
| 589 | x1 += sizeof(struct bsbpb); | ||||||||
| 590 | if (fat == 32) { | ||||||||
| 591 | bsxbpb = (struct bsxbpb *)(img + x1); | ||||||||
| 592 | mk4(bsxbpb->bspf, bpb.bspf)(bsxbpb->bspf)[0] = (u_int8_t)(bpb.bspf), (bsxbpb->bspf )[1] = (u_int8_t)((bpb.bspf) >> 010), (bsxbpb->bspf) [2] = (u_int8_t)((bpb.bspf) >> 020), (bsxbpb->bspf)[ 3] = (u_int8_t)((bpb.bspf) >> 030); | ||||||||
| 593 | mk2(bsxbpb->xflg, 0)(bsxbpb->xflg)[0] = (u_int8_t)(0), (bsxbpb->xflg)[1] = ( u_int8_t)((0) >> 010); | ||||||||
| 594 | mk2(bsxbpb->vers, 0)(bsxbpb->vers)[0] = (u_int8_t)(0), (bsxbpb->vers)[1] = ( u_int8_t)((0) >> 010); | ||||||||
| 595 | mk4(bsxbpb->rdcl, bpb.rdcl)(bsxbpb->rdcl)[0] = (u_int8_t)(bpb.rdcl), (bsxbpb->rdcl )[1] = (u_int8_t)((bpb.rdcl) >> 010), (bsxbpb->rdcl) [2] = (u_int8_t)((bpb.rdcl) >> 020), (bsxbpb->rdcl)[ 3] = (u_int8_t)((bpb.rdcl) >> 030); | ||||||||
| 596 | mk2(bsxbpb->infs, bpb.infs)(bsxbpb->infs)[0] = (u_int8_t)(bpb.infs), (bsxbpb->infs )[1] = (u_int8_t)((bpb.infs) >> 010); | ||||||||
| 597 | mk2(bsxbpb->bkbs, bpb.bkbs)(bsxbpb->bkbs)[0] = (u_int8_t)(bpb.bkbs), (bsxbpb->bkbs )[1] = (u_int8_t)((bpb.bkbs) >> 010); | ||||||||
| 598 | x1 += sizeof(struct bsxbpb); | ||||||||
| 599 | } | ||||||||
| 600 | bsx = (struct bsx *)(img + x1); | ||||||||
| 601 | mk1(bsx->sig, 0x29)(bsx->sig) = (u_int8_t)(0x29); | ||||||||
| 602 | if (Iflag) | ||||||||
| 603 | x = opt_I; | ||||||||
| 604 | else | ||||||||
| 605 | x = (((u_int)(1 + tm->tm_mon) << 8 | | ||||||||
| 606 | (u_int)tm->tm_mday) + | ||||||||
| 607 | ((u_int)tm->tm_sec << 8 | | ||||||||
| 608 | (u_int)(tv.tv_usec / 10))) << 16 | | ||||||||
| 609 | ((u_int)(1900 + tm->tm_year) + | ||||||||
| 610 | ((u_int)tm->tm_hour << 8 | | ||||||||
| 611 | (u_int)tm->tm_min)); | ||||||||
| 612 | mk4(bsx->volid, x)(bsx->volid)[0] = (u_int8_t)(x), (bsx->volid)[1] = (u_int8_t )((x) >> 010), (bsx->volid)[2] = (u_int8_t)((x) >> 020), (bsx->volid)[3] = (u_int8_t)((x) >> 030); | ||||||||
| 613 | mklabel(bsx->label, opt_L ? opt_L : "NO NAME"); | ||||||||
| 614 | snprintf(buf, sizeof buf, "FAT%u", fat); | ||||||||
| 615 | setstr(bsx->type, buf, sizeof(bsx->type)); | ||||||||
| 616 | if (!opt_B) { | ||||||||
| 617 | x1 += sizeof(struct bsx); | ||||||||
| 618 | bs = (struct bs *)img; | ||||||||
| 619 | mk1(bs->jmp[0], 0xeb)(bs->jmp[0]) = (u_int8_t)(0xeb); | ||||||||
| 620 | mk1(bs->jmp[1], x1 - 2)(bs->jmp[1]) = (u_int8_t)(x1 - 2); | ||||||||
| 621 | mk1(bs->jmp[2], 0x90)(bs->jmp[2]) = (u_int8_t)(0x90); | ||||||||
| 622 | setstr(bs->oem, opt_O ? opt_O : "BSD 4.4", | ||||||||
| 623 | sizeof(bs->oem)); | ||||||||
| 624 | memcpy(img + x1, bootcode, sizeof(bootcode)); | ||||||||
| 625 | mk2(img + MINBPS - 2, DOSMAGIC)(img + 512 - 2)[0] = (u_int8_t)(0xaa55), (img + 512 - 2)[1] = (u_int8_t)((0xaa55) >> 010); | ||||||||
| 626 | } | ||||||||
| 627 | } else if (fat == 32 && bpb.infs != MAXU160xffff && | ||||||||
| 628 | (lsn == bpb.infs || | ||||||||
| 629 | (bpb.bkbs != MAXU160xffff && | ||||||||
| 630 | lsn == bpb.bkbs + bpb.infs))) { | ||||||||
| 631 | mk4(img, 0x41615252)(img)[0] = (u_int8_t)(0x41615252), (img)[1] = (u_int8_t)((0x41615252 ) >> 010), (img)[2] = (u_int8_t)((0x41615252) >> 020 ), (img)[3] = (u_int8_t)((0x41615252) >> 030); | ||||||||
| 632 | mk4(img + MINBPS - 28, 0x61417272)(img + 512 - 28)[0] = (u_int8_t)(0x61417272), (img + 512 - 28 )[1] = (u_int8_t)((0x61417272) >> 010), (img + 512 - 28 )[2] = (u_int8_t)((0x61417272) >> 020), (img + 512 - 28 )[3] = (u_int8_t)((0x61417272) >> 030); | ||||||||
| 633 | mk4(img + MINBPS - 24, 0xffffffff)(img + 512 - 24)[0] = (u_int8_t)(0xffffffff), (img + 512 - 24 )[1] = (u_int8_t)((0xffffffff) >> 010), (img + 512 - 24 )[2] = (u_int8_t)((0xffffffff) >> 020), (img + 512 - 24 )[3] = (u_int8_t)((0xffffffff) >> 030); | ||||||||
| 634 | mk4(img + MINBPS - 20, 0xffffffff)(img + 512 - 20)[0] = (u_int8_t)(0xffffffff), (img + 512 - 20 )[1] = (u_int8_t)((0xffffffff) >> 010), (img + 512 - 20 )[2] = (u_int8_t)((0xffffffff) >> 020), (img + 512 - 20 )[3] = (u_int8_t)((0xffffffff) >> 030); | ||||||||
| 635 | mk2(img + MINBPS - 2, DOSMAGIC)(img + 512 - 2)[0] = (u_int8_t)(0xaa55), (img + 512 - 2)[1] = (u_int8_t)((0xaa55) >> 010); | ||||||||
| 636 | } else if (lsn >= bpb.res && lsn < dir && | ||||||||
| 637 | !((lsn - bpb.res) % | ||||||||
| 638 | (bpb.spf ? bpb.spf : bpb.bspf))) { | ||||||||
| 639 | mk1(img[0], bpb.mid)(img[0]) = (u_int8_t)(bpb.mid); | ||||||||
| 640 | for (x = 1; x < fat * (fat == 32 ? 3 : 2) / 8; x++) | ||||||||
| 641 | mk1(img[x], fat == 32 && x % 4 == 3 ? 0x0f : 0xff)(img[x]) = (u_int8_t)(fat == 32 && x % 4 == 3 ? 0x0f : 0xff); | ||||||||
| 642 | } else if (lsn == dir && opt_L) { | ||||||||
| 643 | de = (struct de *)img; | ||||||||
| 644 | mklabel(de->namext, opt_L); | ||||||||
| 645 | mk1(de->attr, 050)(de->attr) = (u_int8_t)(050); | ||||||||
| 646 | x = (u_int)tm->tm_hour << 11 | | ||||||||
| 647 | (u_int)tm->tm_min << 5 | | ||||||||
| 648 | (u_int)tm->tm_sec >> 1; | ||||||||
| 649 | mk2(de->time, x)(de->time)[0] = (u_int8_t)(x), (de->time)[1] = (u_int8_t )((x) >> 010); | ||||||||
| 650 | x = (u_int)(tm->tm_year - 80) << 9 | | ||||||||
| 651 | (u_int)(tm->tm_mon + 1) << 5 | | ||||||||
| 652 | (u_int)tm->tm_mday; | ||||||||
| 653 | mk2(de->date, x)(de->date)[0] = (u_int8_t)(x), (de->date)[1] = (u_int8_t )((x) >> 010); | ||||||||
| 654 | } | ||||||||
| 655 | if ((n = write(fd, img, bpb.bps)) == -1) | ||||||||
| 656 | err(1, "%s", fname); | ||||||||
| 657 | if (n != bpb.bps) | ||||||||
| 658 | errx(1, "%s: can't write sector %u", fname, lsn); | ||||||||
| 659 | } | ||||||||
| 660 | } | ||||||||
| 661 | return 0; | ||||||||
| |||||||||
| 662 | } | ||||||||
| 663 | |||||||||
| 664 | /* | ||||||||
| 665 | * Exit with error if file system is mounted. | ||||||||
| 666 | */ | ||||||||
| 667 | static void | ||||||||
| 668 | check_mounted(const char *fname, mode_t mode) | ||||||||
| 669 | { | ||||||||
| 670 | struct statfs *mp; | ||||||||
| 671 | const char *s1, *s2; | ||||||||
| 672 | size_t len; | ||||||||
| 673 | int n, r; | ||||||||
| 674 | |||||||||
| 675 | if (!(n = getmntinfo(&mp, MNT_NOWAIT2))) | ||||||||
| 676 | err(1, "getmntinfo"); | ||||||||
| 677 | len = sizeof(_PATH_DEV"/dev/") - 1; | ||||||||
| 678 | s1 = fname; | ||||||||
| 679 | if (!strncmp(s1, _PATH_DEV"/dev/", len)) | ||||||||
| 680 | s1 += len; | ||||||||
| 681 | r = S_ISCHR(mode)((mode & 0170000) == 0020000) && s1 != fname && *s1 == 'r'; | ||||||||
| 682 | for (; n--; mp++) { | ||||||||
| 683 | s2 = mp->f_mntfromname; | ||||||||
| 684 | if (!strncmp(s2, _PATH_DEV"/dev/", len)) | ||||||||
| 685 | s2 += len; | ||||||||
| 686 | if ((r && s2 != mp->f_mntfromname && !strcmp(s1 + 1, s2)) || | ||||||||
| 687 | !strcmp(s1, s2)) | ||||||||
| 688 | errx(1, "%s is mounted on %s", fname, mp->f_mntonname); | ||||||||
| 689 | } | ||||||||
| 690 | } | ||||||||
| 691 | |||||||||
| 692 | /* | ||||||||
| 693 | * Get a standard format. | ||||||||
| 694 | */ | ||||||||
| 695 | static void | ||||||||
| 696 | getstdfmt(const char *fmt, struct bpb *bpb) | ||||||||
| 697 | { | ||||||||
| 698 | u_int x, i; | ||||||||
| 699 | |||||||||
| 700 | x = sizeof(stdfmt) / sizeof(stdfmt[0]); | ||||||||
| 701 | for (i = 0; i < x && strcmp(fmt, stdfmt[i].name); i++); | ||||||||
| 702 | if (i == x) | ||||||||
| 703 | errx(1, "%s: unknown standard format", fmt); | ||||||||
| 704 | *bpb = stdfmt[i].bpb; | ||||||||
| 705 | } | ||||||||
| 706 | |||||||||
| 707 | /* | ||||||||
| 708 | * Get disk slice, partition, and geometry information. | ||||||||
| 709 | */ | ||||||||
| 710 | static void | ||||||||
| 711 | getdiskinfo(int fd, const char *fname, const char *dtype, int oflag, | ||||||||
| 712 | struct bpb *bpb) | ||||||||
| 713 | { | ||||||||
| 714 | struct disklabel dl, *lp; | ||||||||
| 715 | const char *s1, *s2; | ||||||||
| 716 | int part, i; | ||||||||
| 717 | |||||||||
| 718 | part = -1; | ||||||||
| 719 | s1 = fname; | ||||||||
| 720 | if ((s2 = strrchr(s1, '/'))) | ||||||||
| 721 | s1 = s2 + 1; | ||||||||
| 722 | for (s2 = s1; *s2 && !isdigit((unsigned char)*s2); s2++); | ||||||||
| 723 | if (!*s2 || s2 == s1) | ||||||||
| 724 | s2 = NULL((void *)0); | ||||||||
| 725 | else | ||||||||
| 726 | while (isdigit((unsigned char)*++s2)); | ||||||||
| 727 | s1 = s2; | ||||||||
| 728 | if (s2 && *s2 >= 'a' && *s2 <= 'a' + MAXPARTITIONS16 - 1) { | ||||||||
| 729 | part = *s2++ - 'a'; | ||||||||
| 730 | } | ||||||||
| 731 | if (!s2 || (*s2 && *s2 != '.')) | ||||||||
| 732 | errx(1, "%s: can't figure out partition info", fname); | ||||||||
| 733 | if ((((!oflag && part != -1) || !bpb->bsec)) || | ||||||||
| 734 | !bpb->bps || !bpb->spt || !bpb->hds) { | ||||||||
| 735 | lp = &dl; | ||||||||
| 736 | i = ioctl(fd, DIOCGDINFO((unsigned long)0x40000000 | ((sizeof(struct disklabel) & 0x1fff) << 16) | ((('d')) << 8) | ((101))), lp); | ||||||||
| 737 | if (i == -1) { | ||||||||
| 738 | if (!dtype) { | ||||||||
| 739 | warn("ioctl (GDINFO)"); | ||||||||
| 740 | errx(1, "%s: can't read disk label; " | ||||||||
| 741 | "disk type must be specified", fname); | ||||||||
| 742 | } else if (!(lp = getdiskbyname(dtype))) | ||||||||
| 743 | errx(1, "%s: unknown disk type", dtype); | ||||||||
| 744 | } | ||||||||
| 745 | if (part == -1) | ||||||||
| 746 | part = RAW_PART2; | ||||||||
| 747 | if (part >= lp->d_npartitions || | ||||||||
| 748 | !DL_GETPSIZE(&lp->d_partitions[part])(((u_int64_t)(&lp->d_partitions[part])->p_sizeh << 32) + (&lp->d_partitions[part])->p_size)) | ||||||||
| 749 | errx(1, "%s: partition is unavailable", fname); | ||||||||
| 750 | if (!oflag && part != -1) | ||||||||
| 751 | bpb->hid += DL_GETPOFFSET(&lp->d_partitions[part])(((u_int64_t)(&lp->d_partitions[part])->p_offseth << 32) + (&lp->d_partitions[part])->p_offset); | ||||||||
| 752 | if (!bpb->bsec) | ||||||||
| 753 | bpb->bsec = DL_GETPSIZE(&lp->d_partitions[part])(((u_int64_t)(&lp->d_partitions[part])->p_sizeh << 32) + (&lp->d_partitions[part])->p_size); | ||||||||
| 754 | if (!bpb->bps) | ||||||||
| 755 | bpb->bps = ckgeom(fname, lp->d_secsize, "bytes/sector"); | ||||||||
| 756 | if (!bpb->spt) | ||||||||
| 757 | bpb->spt = ckgeom(fname, lp->d_nsectors, "sectors/track"); | ||||||||
| 758 | if (!bpb->hds) | ||||||||
| 759 | bpb->hds = ckgeom(fname, lp->d_ntracks, "drive heads"); | ||||||||
| 760 | if (bpb->spt > 63) { | ||||||||
| 761 | bpb->hds = bpb->hds * bpb->spt / 63; | ||||||||
| 762 | bpb->spt = 63; | ||||||||
| 763 | } | ||||||||
| 764 | } | ||||||||
| 765 | } | ||||||||
| 766 | |||||||||
| 767 | /* | ||||||||
| 768 | * Print out BPB values. | ||||||||
| 769 | */ | ||||||||
| 770 | static void | ||||||||
| 771 | print_bpb(struct bpb *bpb) | ||||||||
| 772 | { | ||||||||
| 773 | printf("bps=%u spc=%u res=%u nft=%u", bpb->bps, bpb->spc, bpb->res, | ||||||||
| 774 | bpb->nft); | ||||||||
| 775 | if (bpb->rde) | ||||||||
| 776 | printf(" rde=%u", bpb->rde); | ||||||||
| 777 | if (bpb->sec) | ||||||||
| 778 | printf(" sec=%u", bpb->sec); | ||||||||
| 779 | printf(" mid=%#x", bpb->mid); | ||||||||
| 780 | if (bpb->spf) | ||||||||
| 781 | printf(" spf=%u", bpb->spf); | ||||||||
| 782 | printf(" spt=%u hds=%u hid=%u", bpb->spt, bpb->hds, bpb->hid); | ||||||||
| 783 | if (bpb->bsec) | ||||||||
| 784 | printf(" bsec=%u", bpb->bsec); | ||||||||
| 785 | if (!bpb->spf) { | ||||||||
| 786 | printf(" bspf=%u rdcl=%u", bpb->bspf, bpb->rdcl); | ||||||||
| 787 | printf(" infs="); | ||||||||
| 788 | printf(bpb->infs == MAXU160xffff ? "%#x" : "%u", bpb->infs); | ||||||||
| 789 | printf(" bkbs="); | ||||||||
| 790 | printf(bpb->bkbs == MAXU160xffff ? "%#x" : "%u", bpb->bkbs); | ||||||||
| 791 | } | ||||||||
| 792 | printf("\n"); | ||||||||
| 793 | } | ||||||||
| 794 | |||||||||
| 795 | /* | ||||||||
| 796 | * Check a disk geometry value. | ||||||||
| 797 | */ | ||||||||
| 798 | static u_int | ||||||||
| 799 | ckgeom(const char *fname, u_int val, const char *msg) | ||||||||
| 800 | { | ||||||||
| 801 | if (!val) | ||||||||
| 802 | errx(1, "%s: no default %s", fname, msg); | ||||||||
| 803 | if (val > MAXU160xffff) | ||||||||
| 804 | errx(1, "%s: illegal %s", fname, msg); | ||||||||
| 805 | return val; | ||||||||
| 806 | } | ||||||||
| 807 | |||||||||
| 808 | /* | ||||||||
| 809 | * Convert and check a numeric option argument. | ||||||||
| 810 | */ | ||||||||
| 811 | static u_int | ||||||||
| 812 | argtou(const char *arg, u_int lo, u_int hi, const char *msg) | ||||||||
| 813 | { | ||||||||
| 814 | char *s; | ||||||||
| 815 | u_long x; | ||||||||
| 816 | |||||||||
| 817 | errno(*__errno()) = 0; | ||||||||
| 818 | x = strtoul(arg, &s, 0); | ||||||||
| 819 | if (errno(*__errno()) || !*arg || *s || x < lo || x > hi) | ||||||||
| 820 | errx(1, "%s: bad %s", arg, msg); | ||||||||
| 821 | return x; | ||||||||
| 822 | } | ||||||||
| 823 | |||||||||
| 824 | /* | ||||||||
| 825 | * Check a volume label. | ||||||||
| 826 | */ | ||||||||
| 827 | static int | ||||||||
| 828 | oklabel(const char *src) | ||||||||
| 829 | { | ||||||||
| 830 | int c = 0, i; | ||||||||
| 831 | |||||||||
| 832 | for (i = 0; i <= 11; i++) { | ||||||||
| 833 | c = (u_char)*src++; | ||||||||
| 834 | if (c < ' ' + !i || strchr("\"*+,./:;<=>?[\\]|", c)) | ||||||||
| 835 | break; | ||||||||
| 836 | } | ||||||||
| 837 | return i && !c; | ||||||||
| 838 | } | ||||||||
| 839 | |||||||||
| 840 | /* | ||||||||
| 841 | * Make a volume label. | ||||||||
| 842 | */ | ||||||||
| 843 | static void | ||||||||
| 844 | mklabel(u_int8_t *dest, const char *src) | ||||||||
| 845 | { | ||||||||
| 846 | int c, i; | ||||||||
| 847 | |||||||||
| 848 | for (i = 0; i < 11; i++) { | ||||||||
| 849 | c = *src ? toupper((unsigned char)*src++) : ' '; | ||||||||
| 850 | *dest++ = !i && c == '\xe5' ? 5 : c; | ||||||||
| 851 | } | ||||||||
| 852 | } | ||||||||
| 853 | |||||||||
| 854 | /* | ||||||||
| 855 | * Copy string, padding with spaces. | ||||||||
| 856 | */ | ||||||||
| 857 | static void | ||||||||
| 858 | setstr(u_int8_t *dest, const char *src, size_t len) | ||||||||
| 859 | { | ||||||||
| 860 | while (len--) | ||||||||
| 861 | *dest++ = *src ? *src++ : ' '; | ||||||||
| 862 | } | ||||||||
| 863 | |||||||||
| 864 | /* | ||||||||
| 865 | * Print usage message. | ||||||||
| 866 | */ | ||||||||
| 867 | static __dead__attribute__((__noreturn__)) void | ||||||||
| 868 | usage(void) | ||||||||
| 869 | { | ||||||||
| 870 | extern const char *__progname; | ||||||||
| 871 | |||||||||
| 872 | fprintf(stderr(&__sF[2]), "usage: %s " | ||||||||
| 873 | "[-N] [-a FAT-size] [-B boot] [-b block-size]\n" | ||||||||
| 874 | "\t[-c cluster-size] [-e dirents] [-F FAT-type] [-f format]\n" | ||||||||
| 875 | "\t[-h heads] [-I volid] [-i info] [-k backup] [-L label]\n" | ||||||||
| 876 | "\t[-m media] [-n FATs] [-O OEM] [-o hidden] [-r reserved]\n" | ||||||||
| 877 | "\t[-S sector-size] [-s total] [-u track-size] special\n" | ||||||||
| 878 | "\t[disktype]\n", | ||||||||
| 879 | __progname); | ||||||||
| 880 | exit(1); | ||||||||
| 881 | } |