Made formatting for newfs_msdos.c more uniform
Change-Id: I3d14350c70c05a7e2f713d0065524d78f9a413c6
Signed-off-by: Daniel Rosenberg <drosen@google.com>
diff --git a/toolbox/newfs_msdos.c b/toolbox/newfs_msdos.c
index 30b9f77..5fbca8d 100644
--- a/toolbox/newfs_msdos.c
+++ b/toolbox/newfs_msdos.c
@@ -27,20 +27,20 @@
#ifndef lint
static const char rcsid[] =
- "$FreeBSD: src/sbin/newfs_msdos/newfs_msdos.c,v 1.33 2009/04/11 14:56:29 ed Exp $";
+ "$FreeBSD: src/sbin/newfs_msdos/newfs_msdos.c,v 1.33 2009/04/11 14:56:29 ed Exp $";
#endif /* not lint */
#include <sys/param.h>
#ifndef ANDROID
- #include <sys/fdcio.h>
- #include <sys/disk.h>
- #include <sys/disklabel.h>
- #include <sys/mount.h>
+#include <sys/fdcio.h>
+#include <sys/disk.h>
+#include <sys/disklabel.h>
+#include <sys/mount.h>
#else
- #include <stdarg.h>
- #include <linux/fs.h>
- #include <linux/hdreg.h>
+#include <stdarg.h>
+#include <linux/fs.h>
+#include <linux/hdreg.h>
#endif
#include <sys/stat.h>
@@ -58,44 +58,44 @@
#include <time.h>
#include <unistd.h>
-#define MAXU16 0xffff /* maximum unsigned 16-bit quantity */
-#define BPN 4 /* bits per nibble */
-#define NPB 2 /* nibbles per byte */
+#define MAXU16 0xffff /* maximum unsigned 16-bit quantity */
+#define BPN 4 /* bits per nibble */
+#define NPB 2 /* nibbles per byte */
-#define DOSMAGIC 0xaa55 /* DOS magic number */
-#define MINBPS 512 /* minimum bytes per sector */
-#define MAXSPC 128 /* maximum sectors per cluster */
-#define MAXNFT 16 /* maximum number of FATs */
-#define DEFBLK 4096 /* default block size */
-#define DEFBLK16 2048 /* default block size FAT16 */
-#define DEFRDE 512 /* default root directory entries */
-#define RESFTE 2 /* reserved FAT entries */
-#define MINCLS12 1 /* minimum FAT12 clusters */
-#define MINCLS16 0x1000 /* minimum FAT16 clusters */
-#define MINCLS32 2 /* minimum FAT32 clusters */
-#define MAXCLS12 0xfed /* maximum FAT12 clusters */
-#define MAXCLS16 0xfff5 /* maximum FAT16 clusters */
-#define MAXCLS32 0xffffff5 /* maximum FAT32 clusters */
+#define DOSMAGIC 0xaa55 /* DOS magic number */
+#define MINBPS 512 /* minimum bytes per sector */
+#define MAXSPC 128 /* maximum sectors per cluster */
+#define MAXNFT 16 /* maximum number of FATs */
+#define DEFBLK 4096 /* default block size */
+#define DEFBLK16 2048 /* default block size FAT16 */
+#define DEFRDE 512 /* default root directory entries */
+#define RESFTE 2 /* reserved FAT entries */
+#define MINCLS12 1 /* minimum FAT12 clusters */
+#define MINCLS16 0x1000 /* minimum FAT16 clusters */
+#define MINCLS32 2 /* minimum FAT32 clusters */
+#define MAXCLS12 0xfed /* maximum FAT12 clusters */
+#define MAXCLS16 0xfff5 /* maximum FAT16 clusters */
+#define MAXCLS32 0xffffff5 /* maximum FAT32 clusters */
-#define mincls(fat) ((fat) == 12 ? MINCLS12 : \
- (fat) == 16 ? MINCLS16 : \
- MINCLS32)
+#define mincls(fat) ((fat) == 12 ? MINCLS12 : \
+ (fat) == 16 ? MINCLS16 : \
+ MINCLS32)
-#define maxcls(fat) ((fat) == 12 ? MAXCLS12 : \
- (fat) == 16 ? MAXCLS16 : \
- MAXCLS32)
+#define maxcls(fat) ((fat) == 12 ? MAXCLS12 : \
+ (fat) == 16 ? MAXCLS16 : \
+ MAXCLS32)
-#define mk1(p, x) \
+#define mk1(p, x) \
(p) = (u_int8_t)(x)
-#define mk2(p, x) \
- (p)[0] = (u_int8_t)(x), \
+#define mk2(p, x) \
+ (p)[0] = (u_int8_t)(x), \
(p)[1] = (u_int8_t)((x) >> 010)
-#define mk4(p, x) \
- (p)[0] = (u_int8_t)(x), \
- (p)[1] = (u_int8_t)((x) >> 010), \
- (p)[2] = (u_int8_t)((x) >> 020), \
+#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)
#define argto1(arg, lo, msg) argtou(arg, lo, 0xff, msg)
@@ -104,71 +104,71 @@
#define argtox(arg, lo, msg) argtou(arg, lo, UINT_MAX, msg)
struct bs {
- u_int8_t jmp[3]; /* bootstrap entry point */
- u_int8_t oem[8]; /* OEM name and version */
+ u_int8_t jmp[3]; /* bootstrap entry point */
+ u_int8_t oem[8]; /* OEM name and version */
};
struct bsbpb {
- u_int8_t bps[2]; /* bytes per sector */
- u_int8_t spc; /* sectors per cluster */
- u_int8_t res[2]; /* reserved sectors */
- u_int8_t nft; /* number of FATs */
- u_int8_t rde[2]; /* root directory entries */
- u_int8_t sec[2]; /* total sectors */
- u_int8_t mid; /* media descriptor */
- u_int8_t spf[2]; /* sectors per FAT */
- u_int8_t spt[2]; /* sectors per track */
- u_int8_t hds[2]; /* drive heads */
- u_int8_t hid[4]; /* hidden sectors */
- u_int8_t bsec[4]; /* big total sectors */
+ u_int8_t bps[2]; /* bytes per sector */
+ u_int8_t spc; /* sectors per cluster */
+ u_int8_t res[2]; /* reserved sectors */
+ u_int8_t nft; /* number of FATs */
+ u_int8_t rde[2]; /* root directory entries */
+ u_int8_t sec[2]; /* total sectors */
+ u_int8_t mid; /* media descriptor */
+ u_int8_t spf[2]; /* sectors per FAT */
+ u_int8_t spt[2]; /* sectors per track */
+ u_int8_t hds[2]; /* drive heads */
+ u_int8_t hid[4]; /* hidden sectors */
+ u_int8_t bsec[4]; /* big total sectors */
};
struct bsxbpb {
- u_int8_t bspf[4]; /* big sectors per FAT */
- u_int8_t xflg[2]; /* FAT control flags */
- u_int8_t vers[2]; /* file system version */
- u_int8_t rdcl[4]; /* root directory start cluster */
- u_int8_t infs[2]; /* file system info sector */
- u_int8_t bkbs[2]; /* backup boot sector */
- u_int8_t rsvd[12]; /* reserved */
+ u_int8_t bspf[4]; /* big sectors per FAT */
+ u_int8_t xflg[2]; /* FAT control flags */
+ u_int8_t vers[2]; /* file system version */
+ u_int8_t rdcl[4]; /* root directory start cluster */
+ u_int8_t infs[2]; /* file system info sector */
+ u_int8_t bkbs[2]; /* backup boot sector */
+ u_int8_t rsvd[12]; /* reserved */
};
struct bsx {
- u_int8_t drv; /* drive number */
- u_int8_t rsvd; /* reserved */
- u_int8_t sig; /* extended boot signature */
- u_int8_t volid[4]; /* volume ID number */
- u_int8_t label[11]; /* volume label */
- u_int8_t type[8]; /* file system type */
+ u_int8_t drv; /* drive number */
+ u_int8_t rsvd; /* reserved */
+ u_int8_t sig; /* extended boot signature */
+ u_int8_t volid[4]; /* volume ID number */
+ u_int8_t label[11]; /* volume label */
+ u_int8_t type[8]; /* file system type */
};
struct de {
- u_int8_t namext[11]; /* name and extension */
- u_int8_t attr; /* attributes */
- u_int8_t rsvd[10]; /* reserved */
- u_int8_t time[2]; /* creation time */
- u_int8_t date[2]; /* creation date */
- u_int8_t clus[2]; /* starting cluster */
- u_int8_t size[4]; /* size */
+ u_int8_t namext[11]; /* name and extension */
+ u_int8_t attr; /* attributes */
+ u_int8_t rsvd[10]; /* reserved */
+ u_int8_t time[2]; /* creation time */
+ u_int8_t date[2]; /* creation date */
+ u_int8_t clus[2]; /* starting cluster */
+ u_int8_t size[4]; /* size */
};
struct bpb {
- u_int bps; /* bytes per sector */
- u_int spc; /* sectors per cluster */
- u_int res; /* reserved sectors */
- u_int nft; /* number of FATs */
- u_int rde; /* root directory entries */
- u_int sec; /* total sectors */
- u_int mid; /* media descriptor */
- u_int spf; /* sectors per FAT */
- u_int spt; /* sectors per track */
- u_int hds; /* drive heads */
- u_int hid; /* hidden sectors */
- u_int bsec; /* big total sectors */
- u_int bspf; /* big sectors per FAT */
- u_int rdcl; /* root directory start cluster */
- u_int infs; /* file system info sector */
- u_int bkbs; /* backup boot sector */
+ u_int bps; /* bytes per sector */
+ u_int spc; /* sectors per cluster */
+ u_int res; /* reserved sectors */
+ u_int nft; /* number of FATs */
+ u_int rde; /* root directory entries */
+ u_int sec; /* total sectors */
+ u_int mid; /* media descriptor */
+ u_int spf; /* sectors per FAT */
+ u_int spt; /* sectors per track */
+ u_int hds; /* drive heads */
+ u_int hid; /* hidden sectors */
+ u_int bsec; /* big total sectors */
+ u_int bspf; /* big sectors per FAT */
+ u_int rdcl; /* root directory start cluster */
+ u_int infs; /* file system info sector */
+ u_int bkbs; /* backup boot sector */
};
#define BPBGAP 0, 0, 0, 0, 0, 0
@@ -181,35 +181,35 @@
{"180", {512, 1, 1, 2, 64, 360, 0xfc, 2, 9, 1, BPBGAP}},
{"320", {512, 2, 1, 2, 112, 640, 0xff, 1, 8, 2, BPBGAP}},
{"360", {512, 2, 1, 2, 112, 720, 0xfd, 2, 9, 2, BPBGAP}},
- {"640", {512, 2, 1, 2, 112, 1280, 0xfb, 2, 8, 2, BPBGAP}},
+ {"640", {512, 2, 1, 2, 112, 1280, 0xfb, 2, 8, 2, BPBGAP}},
{"720", {512, 2, 1, 2, 112, 1440, 0xf9, 3, 9, 2, BPBGAP}},
{"1200", {512, 1, 1, 2, 224, 2400, 0xf9, 7, 15, 2, BPBGAP}},
- {"1232", {1024,1, 1, 2, 192, 1232, 0xfe, 2, 8, 2, BPBGAP}},
+ {"1232", {1024,1, 1, 2, 192, 1232, 0xfe, 2, 8, 2, BPBGAP}},
{"1440", {512, 1, 1, 2, 224, 2880, 0xf0, 9, 18, 2, BPBGAP}},
{"2880", {512, 2, 1, 2, 240, 5760, 0xf0, 9, 36, 2, BPBGAP}}
};
static const u_int8_t bootcode[] = {
- 0xfa, /* cli */
- 0x31, 0xc0, /* xor ax,ax */
- 0x8e, 0xd0, /* mov ss,ax */
- 0xbc, 0x00, 0x7c, /* mov sp,7c00h */
- 0xfb, /* sti */
- 0x8e, 0xd8, /* mov ds,ax */
- 0xe8, 0x00, 0x00, /* call $ + 3 */
- 0x5e, /* pop si */
- 0x83, 0xc6, 0x19, /* add si,+19h */
- 0xbb, 0x07, 0x00, /* mov bx,0007h */
- 0xfc, /* cld */
- 0xac, /* lodsb */
- 0x84, 0xc0, /* test al,al */
- 0x74, 0x06, /* jz $ + 8 */
- 0xb4, 0x0e, /* mov ah,0eh */
- 0xcd, 0x10, /* int 10h */
- 0xeb, 0xf5, /* jmp $ - 9 */
- 0x30, 0xe4, /* xor ah,ah */
- 0xcd, 0x16, /* int 16h */
- 0xcd, 0x19, /* int 19h */
+ 0xfa, /* cli */
+ 0x31, 0xc0, /* xor ax,ax */
+ 0x8e, 0xd0, /* mov ss,ax */
+ 0xbc, 0x00, 0x7c, /* mov sp,7c00h */
+ 0xfb, /* sti */
+ 0x8e, 0xd8, /* mov ds,ax */
+ 0xe8, 0x00, 0x00, /* call $ + 3 */
+ 0x5e, /* pop si */
+ 0x83, 0xc6, 0x19, /* add si,+19h */
+ 0xbb, 0x07, 0x00, /* mov bx,0007h */
+ 0xfc, /* cld */
+ 0xac, /* lodsb */
+ 0x84, 0xc0, /* test al,al */
+ 0x74, 0x06, /* jz $ + 8 */
+ 0xb4, 0x0e, /* mov ah,0eh */
+ 0xcd, 0x10, /* int 10h */
+ 0xeb, 0xf5, /* jmp $ - 9 */
+ 0x30, 0xe4, /* xor ah,ah */
+ 0xcd, 0x16, /* int 16h */
+ 0xcd, 0x19, /* int 19h */
0x0d, 0x0a,
'N', 'o', 'n', '-', 's', 'y', 's', 't',
'e', 'm', ' ', 'd', 'i', 's', 'k',
@@ -223,8 +223,7 @@
static void check_mounted(const char *, mode_t);
static void getstdfmt(const char *, struct bpb *);
-static void getdiskinfo(int, const char *, const char *, int,
- struct bpb *);
+static void getdiskinfo(int, const char *, const char *, int, struct bpb *);
static void print_bpb(struct bpb *);
static u_int ckgeom(const char *, u_int, const char *);
static u_int argtou(const char *, u_int, u_int, const char *);
@@ -237,8 +236,7 @@
/*
* Construct a FAT12, FAT16, or FAT32 file system.
*/
-int
-newfs_msdos_main(int argc, char *argv[])
+int newfs_msdos_main(int argc, char *argv[])
{
static const char opts[] = "@:NB:C:F:I:L:O:S:a:b:c:e:f:h:i:k:m:n:o:r:s:u:";
const char *opt_B = NULL, *opt_L = NULL, *opt_O = NULL, *opt_f = NULL;
@@ -266,458 +264,444 @@
off_t opt_create = 0, opt_ofs = 0;
while ((ch = getopt(argc, argv, opts)) != -1)
- switch (ch) {
- case '@':
- opt_ofs = argtooff(optarg, "offset");
- break;
- case 'N':
- opt_N = 1;
- break;
- case 'B':
- opt_B = optarg;
- break;
- case 'C':
- opt_create = argtooff(optarg, "create size");
- break;
- case 'F':
- if (strcmp(optarg, "12") &&
- strcmp(optarg, "16") &&
- strcmp(optarg, "32"))
- errx(1, "%s: bad FAT type", optarg);
- opt_F = atoi(optarg);
- break;
- case 'I':
- opt_I = argto4(optarg, 0, "volume ID");
- Iflag = 1;
- break;
- case 'L':
- if (!oklabel(optarg))
- errx(1, "%s: bad volume label", optarg);
- opt_L = optarg;
- break;
- case 'O':
- if (strlen(optarg) > 8)
- errx(1, "%s: bad OEM string", optarg);
- opt_O = optarg;
- break;
- case 'S':
- opt_S = argto2(optarg, 1, "bytes/sector");
- break;
- case 'a':
- opt_a = argto4(optarg, 1, "sectors/FAT");
- break;
- case 'b':
- opt_b = argtox(optarg, 1, "block size");
- opt_c = 0;
- break;
- case 'c':
- opt_c = argto1(optarg, 1, "sectors/cluster");
- opt_b = 0;
- break;
- case 'e':
- opt_e = argto2(optarg, 1, "directory entries");
- break;
- case 'f':
- opt_f = optarg;
- break;
- case 'h':
- opt_h = argto2(optarg, 1, "drive heads");
- break;
- case 'i':
- opt_i = argto2(optarg, 1, "info sector");
- break;
- case 'k':
- opt_k = argto2(optarg, 1, "backup sector");
- break;
- case 'm':
- opt_m = argto1(optarg, 0, "media descriptor");
- mflag = 1;
- break;
- case 'n':
- opt_n = argto1(optarg, 1, "number of FATs");
- break;
- case 'o':
- opt_o = argto4(optarg, 0, "hidden sectors");
- oflag = 1;
- break;
- case 'r':
- opt_r = argto2(optarg, 1, "reserved sectors");
- break;
- case 's':
- opt_s = argto4(optarg, 1, "file system size");
- break;
- case 'u':
- opt_u = argto2(optarg, 1, "sectors/track");
- break;
- default:
- usage();
- }
+ switch (ch) {
+ case '@':
+ opt_ofs = argtooff(optarg, "offset");
+ break;
+ case 'N':
+ opt_N = 1;
+ break;
+ case 'B':
+ opt_B = optarg;
+ break;
+ case 'C':
+ opt_create = argtooff(optarg, "create size");
+ break;
+ case 'F':
+ if (strcmp(optarg, "12") && strcmp(optarg, "16") && strcmp(optarg, "32"))
+ errx(1, "%s: bad FAT type", optarg);
+ opt_F = atoi(optarg);
+ break;
+ case 'I':
+ opt_I = argto4(optarg, 0, "volume ID");
+ Iflag = 1;
+ break;
+ case 'L':
+ if (!oklabel(optarg))
+ errx(1, "%s: bad volume label", optarg);
+ opt_L = optarg;
+ break;
+ case 'O':
+ if (strlen(optarg) > 8)
+ errx(1, "%s: bad OEM string", optarg);
+ opt_O = optarg;
+ break;
+ case 'S':
+ opt_S = argto2(optarg, 1, "bytes/sector");
+ break;
+ case 'a':
+ opt_a = argto4(optarg, 1, "sectors/FAT");
+ break;
+ case 'b':
+ opt_b = argtox(optarg, 1, "block size");
+ opt_c = 0;
+ break;
+ case 'c':
+ opt_c = argto1(optarg, 1, "sectors/cluster");
+ opt_b = 0;
+ break;
+ case 'e':
+ opt_e = argto2(optarg, 1, "directory entries");
+ break;
+ case 'f':
+ opt_f = optarg;
+ break;
+ case 'h':
+ opt_h = argto2(optarg, 1, "drive heads");
+ break;
+ case 'i':
+ opt_i = argto2(optarg, 1, "info sector");
+ break;
+ case 'k':
+ opt_k = argto2(optarg, 1, "backup sector");
+ break;
+ case 'm':
+ opt_m = argto1(optarg, 0, "media descriptor");
+ mflag = 1;
+ break;
+ case 'n':
+ opt_n = argto1(optarg, 1, "number of FATs");
+ break;
+ case 'o':
+ opt_o = argto4(optarg, 0, "hidden sectors");
+ oflag = 1;
+ break;
+ case 'r':
+ opt_r = argto2(optarg, 1, "reserved sectors");
+ break;
+ case 's':
+ opt_s = argto4(optarg, 1, "file system size");
+ break;
+ case 'u':
+ opt_u = argto2(optarg, 1, "sectors/track");
+ break;
+ default:
+ usage();
+ }
argc -= optind;
argv += optind;
if (argc < 1 || argc > 2)
- usage();
+ usage();
fname = *argv++;
if (!opt_create && !strchr(fname, '/')) {
- snprintf(buf, sizeof(buf), "%s%s", _PATH_DEV, fname);
- if (!(fname = strdup(buf)))
- err(1, "%s", buf);
+ snprintf(buf, sizeof(buf), "%s%s", _PATH_DEV, fname);
+ if (!(fname = strdup(buf)))
+ err(1, "%s", buf);
}
dtype = *argv;
if (opt_create) {
- if (opt_N)
- errx(1, "create (-C) is incompatible with -N");
- fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644);
- if (fd == -1)
- errx(1, "failed to create %s", fname);
- if (ftruncate(fd, opt_create))
- errx(1, "failed to initialize %jd bytes", (intmax_t)opt_create);
+ if (opt_N)
+ errx(1, "create (-C) is incompatible with -N");
+ fd = open(fname, O_RDWR | O_CREAT | O_TRUNC, 0644);
+ if (fd == -1)
+ errx(1, "failed to create %s", fname);
+ if (ftruncate(fd, opt_create))
+ errx(1, "failed to initialize %jd bytes", (intmax_t)opt_create);
} else if ((fd = open(fname, opt_N ? O_RDONLY : O_RDWR)) == -1)
- err(1, "%s", fname);
+ err(1, "%s", fname);
if (fstat(fd, &sb))
- err(1, "%s", fname);
+ err(1, "%s", fname);
if (opt_create) {
- if (!S_ISREG(sb.st_mode))
- warnx("warning, %s is not a regular file", fname);
+ if (!S_ISREG(sb.st_mode))
+ warnx("warning, %s is not a regular file", fname);
} else {
- if (!S_ISCHR(sb.st_mode))
- warnx("warning, %s is not a character device", fname);
+ if (!S_ISCHR(sb.st_mode))
+ warnx("warning, %s is not a character device", fname);
}
if (!opt_N)
- check_mounted(fname, sb.st_mode);
+ check_mounted(fname, sb.st_mode);
if (opt_ofs && opt_ofs != lseek(fd, opt_ofs, SEEK_SET))
- errx(1, "cannot seek to %jd", (intmax_t)opt_ofs);
+ errx(1, "cannot seek to %jd", (intmax_t)opt_ofs);
memset(&bpb, 0, sizeof(bpb));
if (opt_f) {
- getstdfmt(opt_f, &bpb);
- bpb.bsec = bpb.sec;
- bpb.sec = 0;
- bpb.bspf = bpb.spf;
- bpb.spf = 0;
+ getstdfmt(opt_f, &bpb);
+ bpb.bsec = bpb.sec;
+ bpb.sec = 0;
+ bpb.bspf = bpb.spf;
+ bpb.spf = 0;
}
if (opt_h)
- bpb.hds = opt_h;
+ bpb.hds = opt_h;
if (opt_u)
- bpb.spt = opt_u;
+ bpb.spt = opt_u;
if (opt_S)
- bpb.bps = opt_S;
+ bpb.bps = opt_S;
if (opt_s)
- bpb.bsec = opt_s;
+ bpb.bsec = opt_s;
if (oflag)
- bpb.hid = opt_o;
+ bpb.hid = opt_o;
if (!(opt_f || (opt_h && opt_u && opt_S && opt_s && oflag))) {
- off_t delta;
- getdiskinfo(fd, fname, dtype, oflag, &bpb);
+ off_t delta;
+ getdiskinfo(fd, fname, dtype, oflag, &bpb);
if (opt_s) {
bpb.bsec = opt_s;
}
- bpb.bsec -= (opt_ofs / bpb.bps);
- delta = bpb.bsec % bpb.spt;
- if (delta != 0) {
- warnx("trim %d sectors from %d to adjust to a multiple of %d",
- (int)delta, bpb.bsec, bpb.spt);
- bpb.bsec -= delta;
- }
- if (bpb.spc == 0) { /* set defaults */
- if (bpb.bsec <= 6000) /* about 3MB -> 512 bytes */
- bpb.spc = 1;
- else if (bpb.bsec <= (1<<17)) /* 64M -> 4k */
- bpb.spc = 8;
- else if (bpb.bsec <= (1<<19)) /* 256M -> 8k */
- bpb.spc = 16;
- else if (bpb.bsec <= (1<<22)) /* 2G -> 16k, some versions of windows
- require a minimum of 65527 clusters */
- bpb.spc = 32;
- else
- bpb.spc = 64; /* otherwise 32k */
- }
+ bpb.bsec -= (opt_ofs / bpb.bps);
+ delta = bpb.bsec % bpb.spt;
+ if (delta != 0) {
+ warnx("trim %d sectors from %d to adjust to a multiple of %d",
+ (int)delta, bpb.bsec, bpb.spt);
+ bpb.bsec -= delta;
+ }
+ if (bpb.spc == 0) { /* set defaults */
+ if (bpb.bsec <= 6000) /* about 3MB -> 512 bytes */
+ bpb.spc = 1;
+ else if (bpb.bsec <= (1<<17)) /* 64M -> 4k */
+ bpb.spc = 8;
+ else if (bpb.bsec <= (1<<19)) /* 256M -> 8k */
+ bpb.spc = 16;
+ else if (bpb.bsec <= (1<<22)) /* 2G -> 16k, some versions of windows
+ require a minimum of 65527 clusters */
+ bpb.spc = 32;
+ else
+ bpb.spc = 64; /* otherwise 32k */
+ }
}
if (!powerof2(bpb.bps))
- errx(1, "bytes/sector (%u) is not a power of 2", bpb.bps);
+ errx(1, "bytes/sector (%u) is not a power of 2", bpb.bps);
if (bpb.bps < MINBPS)
- errx(1, "bytes/sector (%u) is too small; minimum is %u",
- bpb.bps, MINBPS);
+ errx(1, "bytes/sector (%u) is too small; minimum is %u",
+ bpb.bps, MINBPS);
if (!(fat = opt_F)) {
- if (opt_f)
- fat = 12;
- else if (!opt_e && (opt_i || opt_k))
- fat = 32;
+ if (opt_f)
+ fat = 12;
+ else if (!opt_e && (opt_i || opt_k))
+ fat = 32;
}
if ((fat == 32 && opt_e) || (fat != 32 && (opt_i || opt_k)))
- errx(1, "-%c is not a legal FAT%s option",
- fat == 32 ? 'e' : opt_i ? 'i' : 'k',
- fat == 32 ? "32" : "12/16");
+ errx(1, "-%c is not a legal FAT%s option",
+ fat == 32 ? 'e' : opt_i ? 'i' : 'k',
+ fat == 32 ? "32" : "12/16");
if (opt_f && fat == 32)
- bpb.rde = 0;
+ bpb.rde = 0;
if (opt_b) {
- if (!powerof2(opt_b))
- errx(1, "block size (%u) is not a power of 2", opt_b);
- if (opt_b < bpb.bps)
- errx(1, "block size (%u) is too small; minimum is %u",
- opt_b, bpb.bps);
- if (opt_b > bpb.bps * MAXSPC)
- errx(1, "block size (%u) is too large; maximum is %u",
- opt_b, bpb.bps * MAXSPC);
- bpb.spc = opt_b / bpb.bps;
+ if (!powerof2(opt_b))
+ errx(1, "block size (%u) is not a power of 2", opt_b);
+ if (opt_b < bpb.bps)
+ errx(1, "block size (%u) is too small; minimum is %u",
+ opt_b, bpb.bps);
+ if (opt_b > bpb.bps * MAXSPC)
+ errx(1, "block size (%u) is too large; maximum is %u", opt_b, bpb.bps * MAXSPC);
+ bpb.spc = opt_b / bpb.bps;
}
if (opt_c) {
- if (!powerof2(opt_c))
- errx(1, "sectors/cluster (%u) is not a power of 2", opt_c);
- bpb.spc = opt_c;
+ if (!powerof2(opt_c))
+ errx(1, "sectors/cluster (%u) is not a power of 2", opt_c);
+ bpb.spc = opt_c;
}
if (opt_r)
- bpb.res = opt_r;
+ bpb.res = opt_r;
if (opt_n) {
- if (opt_n > MAXNFT)
- errx(1, "number of FATs (%u) is too large; maximum is %u",
- opt_n, MAXNFT);
- bpb.nft = opt_n;
+ if (opt_n > MAXNFT)
+ errx(1, "number of FATs (%u) is too large; maximum is %u", opt_n, MAXNFT);
+ bpb.nft = opt_n;
}
if (opt_e)
- bpb.rde = opt_e;
+ bpb.rde = opt_e;
if (mflag) {
- if (opt_m < 0xf0)
- errx(1, "illegal media descriptor (%#x)", opt_m);
- bpb.mid = opt_m;
+ if (opt_m < 0xf0)
+ errx(1, "illegal media descriptor (%#x)", opt_m);
+ bpb.mid = opt_m;
}
if (opt_a)
- bpb.bspf = opt_a;
+ bpb.bspf = opt_a;
if (opt_i)
- bpb.infs = opt_i;
+ bpb.infs = opt_i;
if (opt_k)
- bpb.bkbs = opt_k;
+ bpb.bkbs = opt_k;
bss = 1;
bname = NULL;
fd1 = -1;
if (opt_B) {
- bname = opt_B;
- if (!strchr(bname, '/')) {
- snprintf(buf, sizeof(buf), "/boot/%s", bname);
- if (!(bname = strdup(buf)))
- err(1, "%s", buf);
- }
- if ((fd1 = open(bname, O_RDONLY)) == -1 || fstat(fd1, &sb))
- err(1, "%s", bname);
- if (!S_ISREG(sb.st_mode) || sb.st_size % bpb.bps ||
- sb.st_size < bpb.bps || sb.st_size > bpb.bps * MAXU16)
- errx(1, "%s: inappropriate file type or format", bname);
- bss = sb.st_size / bpb.bps;
+ bname = opt_B;
+ if (!strchr(bname, '/')) {
+ snprintf(buf, sizeof(buf), "/boot/%s", bname);
+ if (!(bname = strdup(buf)))
+ err(1, "%s", buf);
+ }
+ if ((fd1 = open(bname, O_RDONLY)) == -1 || fstat(fd1, &sb))
+ err(1, "%s", bname);
+ if (!S_ISREG(sb.st_mode) || sb.st_size % bpb.bps ||
+ sb.st_size < bpb.bps || sb.st_size > bpb.bps * MAXU16)
+ errx(1, "%s: inappropriate file type or format", bname);
+ bss = sb.st_size / bpb.bps;
}
if (!bpb.nft)
- bpb.nft = 2;
+ bpb.nft = 2;
if (!fat) {
- if (bpb.bsec < (bpb.res ? bpb.res : bss) +
- howmany((RESFTE + (bpb.spc ? MINCLS16 : MAXCLS12 + 1)) *
- ((bpb.spc ? 16 : 12) / BPN), bpb.bps * NPB) *
- bpb.nft +
- howmany(bpb.rde ? bpb.rde : DEFRDE,
- bpb.bps / sizeof(struct de)) +
- (bpb.spc ? MINCLS16 : MAXCLS12 + 1) *
- (bpb.spc ? bpb.spc : howmany(DEFBLK, bpb.bps)))
- fat = 12;
- else if (bpb.rde || bpb.bsec <
- (bpb.res ? bpb.res : bss) +
- howmany((RESFTE + MAXCLS16) * 2, bpb.bps) * bpb.nft +
- howmany(DEFRDE, bpb.bps / sizeof(struct de)) +
- (MAXCLS16 + 1) *
- (bpb.spc ? bpb.spc : howmany(8192, bpb.bps)))
- fat = 16;
- else
- fat = 32;
+ if (bpb.bsec < (bpb.res ? bpb.res : bss) +
+ howmany((RESFTE + (bpb.spc ? MINCLS16 : MAXCLS12 + 1)) *
+ ((bpb.spc ? 16 : 12) / BPN), bpb.bps * NPB) *
+ bpb.nft +
+ howmany(bpb.rde ? bpb.rde : DEFRDE,
+ bpb.bps / sizeof(struct de)) +
+ (bpb.spc ? MINCLS16 : MAXCLS12 + 1) *
+ (bpb.spc ? bpb.spc : howmany(DEFBLK, bpb.bps)))
+ fat = 12;
+ else if (bpb.rde || bpb.bsec <
+ (bpb.res ? bpb.res : bss) +
+ howmany((RESFTE + MAXCLS16) * 2, bpb.bps) * bpb.nft +
+ howmany(DEFRDE, bpb.bps / sizeof(struct de)) +
+ (MAXCLS16 + 1) *
+ (bpb.spc ? bpb.spc : howmany(8192, bpb.bps)))
+ fat = 16;
+ else
+ fat = 32;
}
x = bss;
if (fat == 32) {
- if (!bpb.infs) {
- if (x == MAXU16 || x == bpb.bkbs)
- errx(1, "no room for info sector");
- bpb.infs = x;
- }
- if (bpb.infs != MAXU16 && x <= bpb.infs)
- x = bpb.infs + 1;
- if (!bpb.bkbs) {
- if (x == MAXU16)
- errx(1, "no room for backup sector");
- bpb.bkbs = x;
- } else if (bpb.bkbs != MAXU16 && bpb.bkbs == bpb.infs)
- errx(1, "backup sector would overwrite info sector");
- if (bpb.bkbs != MAXU16 && x <= bpb.bkbs)
- x = bpb.bkbs + 1;
+ if (!bpb.infs) {
+ if (x == MAXU16 || x == bpb.bkbs)
+ errx(1, "no room for info sector");
+ bpb.infs = x;
+ }
+ if (bpb.infs != MAXU16 && x <= bpb.infs)
+ x = bpb.infs + 1;
+ if (!bpb.bkbs) {
+ if (x == MAXU16)
+ errx(1, "no room for backup sector");
+ bpb.bkbs = x;
+ } else if (bpb.bkbs != MAXU16 && bpb.bkbs == bpb.infs)
+ errx(1, "backup sector would overwrite info sector");
+ if (bpb.bkbs != MAXU16 && x <= bpb.bkbs)
+ x = bpb.bkbs + 1;
}
if (!bpb.res)
- bpb.res = fat == 32 ? MAX(x, MAX(16384 / bpb.bps, 4)) : x;
+ bpb.res = fat == 32 ? MAX(x, MAX(16384 / bpb.bps, 4)) : x;
else if (bpb.res < x)
- errx(1, "too few reserved sectors");
+ errx(1, "too few reserved sectors");
if (fat != 32 && !bpb.rde)
- bpb.rde = DEFRDE;
+ bpb.rde = DEFRDE;
rds = howmany(bpb.rde, bpb.bps / sizeof(struct de));
if (!bpb.spc)
- for (bpb.spc = howmany(fat == 16 ? DEFBLK16 : DEFBLK, bpb.bps);
- bpb.spc < MAXSPC &&
- bpb.res +
- howmany((RESFTE + maxcls(fat)) * (fat / BPN),
- bpb.bps * NPB) * bpb.nft +
- rds +
- (u_int64_t)(maxcls(fat) + 1) * bpb.spc <= bpb.bsec;
- bpb.spc <<= 1);
+ for (bpb.spc = howmany(fat == 16 ? DEFBLK16 : DEFBLK, bpb.bps);
+ bpb.spc < MAXSPC &&
+ bpb.res +
+ howmany((RESFTE + maxcls(fat)) * (fat / BPN),
+ bpb.bps * NPB) * bpb.nft +
+ rds +
+ (u_int64_t)(maxcls(fat) + 1) * bpb.spc <= bpb.bsec;
+ bpb.spc <<= 1);
if (fat != 32 && bpb.bspf > MAXU16)
- errx(1, "too many sectors/FAT for FAT12/16");
+ errx(1, "too many sectors/FAT for FAT12/16");
x1 = bpb.res + rds;
x = bpb.bspf ? bpb.bspf : 1;
if (x1 + (u_int64_t)x * bpb.nft > bpb.bsec)
- errx(1, "meta data exceeds file system size");
+ errx(1, "meta data exceeds file system size");
x1 += x * bpb.nft;
x = (u_int64_t)(bpb.bsec - x1) * bpb.bps * NPB /
- (bpb.spc * bpb.bps * NPB + fat / BPN * bpb.nft);
- x2 = howmany((RESFTE + MIN(x, maxcls(fat))) * (fat / BPN),
- bpb.bps * NPB);
+ (bpb.spc * bpb.bps * NPB + fat / BPN * bpb.nft);
+ x2 = howmany((RESFTE + MIN(x, maxcls(fat))) * (fat / BPN), bpb.bps * NPB);
if (!bpb.bspf) {
- bpb.bspf = x2;
- x1 += (bpb.bspf - 1) * bpb.nft;
+ bpb.bspf = x2;
+ x1 += (bpb.bspf - 1) * bpb.nft;
}
cls = (bpb.bsec - x1) / bpb.spc;
x = (u_int64_t)bpb.bspf * bpb.bps * NPB / (fat / BPN) - RESFTE;
if (cls > x)
- cls = x;
+ cls = x;
if (bpb.bspf < x2)
- warnx("warning: sectors/FAT limits file system to %u clusters",
- cls);
+ warnx("warning: sectors/FAT limits file system to %u clusters", cls);
if (cls < mincls(fat))
- errx(1, "%u clusters too few clusters for FAT%u, need %u", cls, fat,
- mincls(fat));
+ errx(1, "%u clusters too few clusters for FAT%u, need %u", cls, fat, mincls(fat));
if (cls > maxcls(fat)) {
- cls = maxcls(fat);
- bpb.bsec = x1 + (cls + 1) * bpb.spc - 1;
- warnx("warning: FAT type limits file system to %u sectors",
- bpb.bsec);
+ cls = maxcls(fat);
+ bpb.bsec = x1 + (cls + 1) * bpb.spc - 1;
+ warnx("warning: FAT type limits file system to %u sectors", bpb.bsec);
}
- printf("%s: %u sector%s in %u FAT%u cluster%s "
- "(%u bytes/cluster)\n", fname, cls * bpb.spc,
- cls * bpb.spc == 1 ? "" : "s", cls, fat,
- cls == 1 ? "" : "s", bpb.bps * bpb.spc);
+ printf("%s: %u sector%s in %u FAT%u cluster%s (%u bytes/cluster)\n",
+ fname, cls * bpb.spc, cls * bpb.spc == 1 ? "" : "s", cls, fat,
+ cls == 1 ? "" : "s", bpb.bps * bpb.spc);
if (!bpb.mid)
- bpb.mid = !bpb.hid ? 0xf0 : 0xf8;
+ bpb.mid = !bpb.hid ? 0xf0 : 0xf8;
if (fat == 32)
- bpb.rdcl = RESFTE;
+ bpb.rdcl = RESFTE;
if (bpb.hid + bpb.bsec <= MAXU16) {
- bpb.sec = bpb.bsec;
- bpb.bsec = 0;
+ bpb.sec = bpb.bsec;
+ bpb.bsec = 0;
}
if (fat != 32) {
- bpb.spf = bpb.bspf;
- bpb.bspf = 0;
+ bpb.spf = bpb.bspf;
+ bpb.bspf = 0;
}
print_bpb(&bpb);
if (!opt_N) {
- gettimeofday(&tv, NULL);
- now = tv.tv_sec;
- tm = localtime(&now);
- if (!(img = malloc(bpb.bps)))
- err(1, "%u", bpb.bps);
- dir = bpb.res + (bpb.spf ? bpb.spf : bpb.bspf) * bpb.nft;
- for (lsn = 0; lsn < dir + (fat == 32 ? bpb.spc : rds); lsn++) {
- x = lsn;
- if (opt_B &&
- fat == 32 && bpb.bkbs != MAXU16 &&
- bss <= bpb.bkbs && x >= bpb.bkbs) {
- x -= bpb.bkbs;
- if (!x && lseek(fd1, opt_ofs, SEEK_SET))
- err(1, "%s", bname);
- }
- if (opt_B && x < bss) {
- if ((n = read(fd1, img, bpb.bps)) == -1)
- err(1, "%s", bname);
- if ((unsigned)n != bpb.bps)
- errx(1, "%s: can't read sector %u", bname, x);
- } else
- memset(img, 0, bpb.bps);
- if (!lsn ||
- (fat == 32 && bpb.bkbs != MAXU16 && lsn == bpb.bkbs)) {
- x1 = sizeof(struct bs);
- bsbpb = (struct bsbpb *)(img + x1);
- mk2(bsbpb->bps, bpb.bps);
- mk1(bsbpb->spc, bpb.spc);
- mk2(bsbpb->res, bpb.res);
- mk1(bsbpb->nft, bpb.nft);
- mk2(bsbpb->rde, bpb.rde);
- mk2(bsbpb->sec, bpb.sec);
- mk1(bsbpb->mid, bpb.mid);
- mk2(bsbpb->spf, bpb.spf);
- mk2(bsbpb->spt, bpb.spt);
- mk2(bsbpb->hds, bpb.hds);
- mk4(bsbpb->hid, bpb.hid);
- mk4(bsbpb->bsec, bpb.bsec);
- x1 += sizeof(struct bsbpb);
- if (fat == 32) {
- bsxbpb = (struct bsxbpb *)(img + x1);
- mk4(bsxbpb->bspf, bpb.bspf);
- mk2(bsxbpb->xflg, 0);
- mk2(bsxbpb->vers, 0);
- mk4(bsxbpb->rdcl, bpb.rdcl);
- mk2(bsxbpb->infs, bpb.infs);
- mk2(bsxbpb->bkbs, bpb.bkbs);
- x1 += sizeof(struct bsxbpb);
- }
- bsx = (struct bsx *)(img + x1);
- mk1(bsx->sig, 0x29);
- if (Iflag)
- x = opt_I;
- else
- x = (((u_int)(1 + tm->tm_mon) << 8 |
- (u_int)tm->tm_mday) +
- ((u_int)tm->tm_sec << 8 |
- (u_int)(tv.tv_usec / 10))) << 16 |
- ((u_int)(1900 + tm->tm_year) +
- ((u_int)tm->tm_hour << 8 |
- (u_int)tm->tm_min));
- mk4(bsx->volid, x);
- mklabel(bsx->label, opt_L ? opt_L : "NO NAME");
- sprintf(buf, "FAT%u", fat);
- setstr(bsx->type, buf, sizeof(bsx->type));
- if (!opt_B) {
- x1 += sizeof(struct bsx);
- bs = (struct bs *)img;
- mk1(bs->jmp[0], 0xeb);
- mk1(bs->jmp[1], x1 - 2);
- mk1(bs->jmp[2], 0x90);
- setstr(bs->oem, opt_O ? opt_O : "BSD 4.4",
- sizeof(bs->oem));
- memcpy(img + x1, bootcode, sizeof(bootcode));
- mk2(img + MINBPS - 2, DOSMAGIC);
- }
- } else if (fat == 32 && bpb.infs != MAXU16 &&
- (lsn == bpb.infs ||
- (bpb.bkbs != MAXU16 &&
- lsn == bpb.bkbs + bpb.infs))) {
- mk4(img, 0x41615252);
- mk4(img + MINBPS - 28, 0x61417272);
- mk4(img + MINBPS - 24, 0xffffffff);
- mk4(img + MINBPS - 20, bpb.rdcl);
- mk2(img + MINBPS - 2, DOSMAGIC);
- } else if (lsn >= bpb.res && lsn < dir &&
- !((lsn - bpb.res) %
- (bpb.spf ? bpb.spf : bpb.bspf))) {
- mk1(img[0], bpb.mid);
- for (x = 1; x < fat * (fat == 32 ? 3 : 2) / 8; x++)
- mk1(img[x], fat == 32 && x % 4 == 3 ? 0x0f : 0xff);
- } else if (lsn == dir && opt_L) {
- de = (struct de *)img;
- mklabel(de->namext, opt_L);
- mk1(de->attr, 050);
- x = (u_int)tm->tm_hour << 11 |
- (u_int)tm->tm_min << 5 |
- (u_int)tm->tm_sec >> 1;
- mk2(de->time, x);
- x = (u_int)(tm->tm_year - 80) << 9 |
- (u_int)(tm->tm_mon + 1) << 5 |
- (u_int)tm->tm_mday;
- mk2(de->date, x);
- }
- if ((n = write(fd, img, bpb.bps)) == -1)
- err(1, "%s", fname);
- if ((unsigned)n != bpb.bps) {
- errx(1, "%s: can't write sector %u", fname, lsn);
+ gettimeofday(&tv, NULL);
+ now = tv.tv_sec;
+ tm = localtime(&now);
+ if (!(img = malloc(bpb.bps)))
+ err(1, "%u", bpb.bps);
+ dir = bpb.res + (bpb.spf ? bpb.spf : bpb.bspf) * bpb.nft;
+ for (lsn = 0; lsn < dir + (fat == 32 ? bpb.spc : rds); lsn++) {
+ x = lsn;
+ if (opt_B && fat == 32 && bpb.bkbs != MAXU16 && bss <= bpb.bkbs && x >= bpb.bkbs) {
+ x -= bpb.bkbs;
+ if (!x && lseek(fd1, opt_ofs, SEEK_SET))
+ err(1, "%s", bname);
+ }
+ if (opt_B && x < bss) {
+ if ((n = read(fd1, img, bpb.bps)) == -1)
+ err(1, "%s", bname);
+ if ((unsigned)n != bpb.bps)
+ errx(1, "%s: can't read sector %u", bname, x);
+ } else
+ memset(img, 0, bpb.bps);
+ if (!lsn || (fat == 32 && bpb.bkbs != MAXU16 && lsn == bpb.bkbs)) {
+ x1 = sizeof(struct bs);
+ bsbpb = (struct bsbpb *)(img + x1);
+ mk2(bsbpb->bps, bpb.bps);
+ mk1(bsbpb->spc, bpb.spc);
+ mk2(bsbpb->res, bpb.res);
+ mk1(bsbpb->nft, bpb.nft);
+ mk2(bsbpb->rde, bpb.rde);
+ mk2(bsbpb->sec, bpb.sec);
+ mk1(bsbpb->mid, bpb.mid);
+ mk2(bsbpb->spf, bpb.spf);
+ mk2(bsbpb->spt, bpb.spt);
+ mk2(bsbpb->hds, bpb.hds);
+ mk4(bsbpb->hid, bpb.hid);
+ mk4(bsbpb->bsec, bpb.bsec);
+ x1 += sizeof(struct bsbpb);
+ if (fat == 32) {
+ bsxbpb = (struct bsxbpb *)(img + x1);
+ mk4(bsxbpb->bspf, bpb.bspf);
+ mk2(bsxbpb->xflg, 0);
+ mk2(bsxbpb->vers, 0);
+ mk4(bsxbpb->rdcl, bpb.rdcl);
+ mk2(bsxbpb->infs, bpb.infs);
+ mk2(bsxbpb->bkbs, bpb.bkbs);
+ x1 += sizeof(struct bsxbpb);
+ }
+ bsx = (struct bsx *)(img + x1);
+ mk1(bsx->sig, 0x29);
+ if (Iflag)
+ x = opt_I;
+ else
+ x = (((u_int)(1 + tm->tm_mon) << 8 |
+ (u_int)tm->tm_mday) +
+ ((u_int)tm->tm_sec << 8 |
+ (u_int)(tv.tv_usec / 10))) << 16 |
+ ((u_int)(1900 + tm->tm_year) +
+ ((u_int)tm->tm_hour << 8 |
+ (u_int)tm->tm_min));
+ mk4(bsx->volid, x);
+ mklabel(bsx->label, opt_L ? opt_L : "NO NAME");
+ sprintf(buf, "FAT%u", fat);
+ setstr(bsx->type, buf, sizeof(bsx->type));
+ if (!opt_B) {
+ x1 += sizeof(struct bsx);
+ bs = (struct bs *)img;
+ mk1(bs->jmp[0], 0xeb);
+ mk1(bs->jmp[1], x1 - 2);
+ mk1(bs->jmp[2], 0x90);
+ setstr(bs->oem, opt_O ? opt_O : "BSD 4.4",
+ sizeof(bs->oem));
+ memcpy(img + x1, bootcode, sizeof(bootcode));
+ mk2(img + MINBPS - 2, DOSMAGIC);
+ }
+ } else if (fat == 32 && bpb.infs != MAXU16 &&
+ (lsn == bpb.infs || (bpb.bkbs != MAXU16 &&
+ lsn == bpb.bkbs + bpb.infs))) {
+ mk4(img, 0x41615252);
+ mk4(img + MINBPS - 28, 0x61417272);
+ mk4(img + MINBPS - 24, 0xffffffff);
+ mk4(img + MINBPS - 20, bpb.rdcl);
+ mk2(img + MINBPS - 2, DOSMAGIC);
+ } else if (lsn >= bpb.res && lsn < dir &&
+ !((lsn - bpb.res) % (bpb.spf ? bpb.spf : bpb.bspf))) {
+ mk1(img[0], bpb.mid);
+ for (x = 1; x < fat * (fat == 32 ? 3 : 2) / 8; x++)
+ mk1(img[x], fat == 32 && x % 4 == 3 ? 0x0f : 0xff);
+ } else if (lsn == dir && opt_L) {
+ de = (struct de *)img;
+ mklabel(de->namext, opt_L);
+ mk1(de->attr, 050);
+ x = (u_int)tm->tm_hour << 11 |
+ (u_int)tm->tm_min << 5 |
+ (u_int)tm->tm_sec >> 1;
+ mk2(de->time, x);
+ x = (u_int)(tm->tm_year - 80) << 9 |
+ (u_int)(tm->tm_mon + 1) << 5 |
+ (u_int)tm->tm_mday;
+ mk2(de->date, x);
+ }
+ if ((n = write(fd, img, bpb.bps)) == -1)
+ err(1, "%s", fname);
+ if ((unsigned)n != bpb.bps) {
+ errx(1, "%s: can't write sector %u", fname, lsn);
exit(1);
}
- }
+ }
}
return 0;
}
@@ -725,8 +709,7 @@
/*
* Exit with error if file system is mounted.
*/
-static void
-check_mounted(const char *fname, mode_t mode)
+static void check_mounted(const char *fname, mode_t mode)
{
#ifdef ANDROID
warnx("Skipping mount checks");
@@ -737,19 +720,18 @@
int n, r;
if (!(n = getmntinfo(&mp, MNT_NOWAIT)))
- err(1, "getmntinfo");
+ err(1, "getmntinfo");
len = strlen(_PATH_DEV);
s1 = fname;
if (!strncmp(s1, _PATH_DEV, len))
- s1 += len;
+ s1 += len;
r = S_ISCHR(mode) && s1 != fname && *s1 == 'r';
for (; n--; mp++) {
- s2 = mp->f_mntfromname;
- if (!strncmp(s2, _PATH_DEV, len))
- s2 += len;
- if ((r && s2 != mp->f_mntfromname && !strcmp(s1 + 1, s2)) ||
- !strcmp(s1, s2))
- errx(1, "%s is mounted on %s", fname, mp->f_mntonname);
+ s2 = mp->f_mntfromname;
+ if (!strncmp(s2, _PATH_DEV, len))
+ s2 += len;
+ if ((r && s2 != mp->f_mntfromname && !strcmp(s1 + 1, s2)) || !strcmp(s1, s2))
+ errx(1, "%s is mounted on %s", fname, mp->f_mntonname);
}
#endif
}
@@ -757,15 +739,14 @@
/*
* Get a standard format.
*/
-static void
-getstdfmt(const char *fmt, struct bpb *bpb)
+static void getstdfmt(const char *fmt, struct bpb *bpb)
{
u_int x, i;
x = sizeof(stdfmt) / sizeof(stdfmt[0]);
for (i = 0; i < x && strcmp(fmt, stdfmt[i].name); i++);
if (i == x)
- errx(1, "%s: unknown standard format", fmt);
+ errx(1, "%s: unknown standard format", fmt);
*bpb = stdfmt[i].bpb;
}
@@ -774,9 +755,8 @@
*/
#ifdef ANDROID
-static void
-getdiskinfo(int fd, const char *fname, const char *dtype, __unused int oflag,
- struct bpb *bpb)
+static void getdiskinfo(int fd, const char *fname, const char *dtype,
+ __unused int oflag,struct bpb *bpb)
{
struct hd_geometry geom;
@@ -817,9 +797,8 @@
#else
-static void
-getdiskinfo(int fd, const char *fname, const char *dtype, __unused int oflag,
- struct bpb *bpb)
+static void getdiskinfo(int fd, const char *fname, const char *dtype,
+ __unused int oflag, struct bpb *bpb)
{
struct disklabel *lp, dlp;
struct fd_type type;
@@ -829,97 +808,96 @@
/* If the user specified a disk type, try to use that */
if (dtype != NULL) {
- lp = getdiskbyname(dtype);
+ lp = getdiskbyname(dtype);
}
/* Maybe it's a floppy drive */
if (lp == NULL) {
- if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) {
- struct stat st;
+ if (ioctl(fd, DIOCGMEDIASIZE, &ms) == -1) {
+ struct stat st;
- if (fstat(fd, &st))
- err(1, "Cannot get disk size");
- /* create a fake geometry for a file image */
- ms = st.st_size;
- dlp.d_secsize = 512;
- dlp.d_nsectors = 63;
- dlp.d_ntracks = 255;
- dlp.d_secperunit = ms / dlp.d_secsize;
- lp = &dlp;
- } else if (ioctl(fd, FD_GTYPE, &type) != -1) {
- dlp.d_secsize = 128 << type.secsize;
- dlp.d_nsectors = type.sectrac;
- dlp.d_ntracks = type.heads;
- dlp.d_secperunit = ms / dlp.d_secsize;
- lp = &dlp;
- }
+ if (fstat(fd, &st))
+ err(1, "Cannot get disk size");
+ /* create a fake geometry for a file image */
+ ms = st.st_size;
+ dlp.d_secsize = 512;
+ dlp.d_nsectors = 63;
+ dlp.d_ntracks = 255;
+ dlp.d_secperunit = ms / dlp.d_secsize;
+ lp = &dlp;
+ } else if (ioctl(fd, FD_GTYPE, &type) != -1) {
+ dlp.d_secsize = 128 << type.secsize;
+ dlp.d_nsectors = type.sectrac;
+ dlp.d_ntracks = type.heads;
+ dlp.d_secperunit = ms / dlp.d_secsize;
+ lp = &dlp;
+ }
}
/* Maybe it's a fixed drive */
if (lp == NULL) {
- if (ioctl(fd, DIOCGDINFO, &dlp) == -1) {
- if (bpb->bps == 0 && ioctl(fd, DIOCGSECTORSIZE, &dlp.d_secsize) == -1)
- errx(1, "Cannot get sector size, %s", strerror(errno));
+ if (ioctl(fd, DIOCGDINFO, &dlp) == -1) {
+ if (bpb->bps == 0 && ioctl(fd, DIOCGSECTORSIZE, &dlp.d_secsize) == -1)
+ errx(1, "Cannot get sector size, %s", strerror(errno));
- /* XXX Should we use bpb->bps if it's set? */
- dlp.d_secperunit = ms / dlp.d_secsize;
+ /* XXX Should we use bpb->bps if it's set? */
+ dlp.d_secperunit = ms / dlp.d_secsize;
- if (bpb->spt == 0 && ioctl(fd, DIOCGFWSECTORS, &dlp.d_nsectors) == -1) {
- warnx("Cannot get number of sectors per track, %s", strerror(errno));
- dlp.d_nsectors = 63;
- }
- if (bpb->hds == 0 && ioctl(fd, DIOCGFWHEADS, &dlp.d_ntracks) == -1) {
- warnx("Cannot get number of heads, %s", strerror(errno));
- if (dlp.d_secperunit <= 63*1*1024)
- dlp.d_ntracks = 1;
- else if (dlp.d_secperunit <= 63*16*1024)
- dlp.d_ntracks = 16;
- else
- dlp.d_ntracks = 255;
- }
- }
+ if (bpb->spt == 0 && ioctl(fd, DIOCGFWSECTORS, &dlp.d_nsectors) == -1) {
+ warnx("Cannot get number of sectors per track, %s", strerror(errno));
+ dlp.d_nsectors = 63;
+ }
+ if (bpb->hds == 0 && ioctl(fd, DIOCGFWHEADS, &dlp.d_ntracks) == -1) {
+ warnx("Cannot get number of heads, %s", strerror(errno));
+ if (dlp.d_secperunit <= 63*1*1024)
+ dlp.d_ntracks = 1;
+ else if (dlp.d_secperunit <= 63*16*1024)
+ dlp.d_ntracks = 16;
+ else
+ dlp.d_ntracks = 255;
+ }
+ }
- hs = (ms / dlp.d_secsize) - dlp.d_secperunit;
- lp = &dlp;
+ hs = (ms / dlp.d_secsize) - dlp.d_secperunit;
+ lp = &dlp;
}
if (bpb->bps == 0)
- bpb->bps = ckgeom(fname, lp->d_secsize, "bytes/sector");
+ bpb->bps = ckgeom(fname, lp->d_secsize, "bytes/sector");
if (bpb->spt == 0)
- bpb->spt = ckgeom(fname, lp->d_nsectors, "sectors/track");
+ bpb->spt = ckgeom(fname, lp->d_nsectors, "sectors/track");
if (bpb->hds == 0)
- bpb->hds = ckgeom(fname, lp->d_ntracks, "drive heads");
+ bpb->hds = ckgeom(fname, lp->d_ntracks, "drive heads");
if (bpb->bsec == 0)
- bpb->bsec = lp->d_secperunit;
+ bpb->bsec = lp->d_secperunit;
if (bpb->hid == 0)
- bpb->hid = hs;
+ bpb->hid = hs;
}
#endif
/*
* Print out BPB values.
*/
-static void
-print_bpb(struct bpb *bpb)
+static void print_bpb(struct bpb *bpb)
{
printf("bps=%u spc=%u res=%u nft=%u", bpb->bps, bpb->spc, bpb->res,
- bpb->nft);
+ bpb->nft);
if (bpb->rde)
- printf(" rde=%u", bpb->rde);
+ printf(" rde=%u", bpb->rde);
if (bpb->sec)
- printf(" sec=%u", bpb->sec);
+ printf(" sec=%u", bpb->sec);
printf(" mid=%#x", bpb->mid);
if (bpb->spf)
- printf(" spf=%u", bpb->spf);
+ printf(" spf=%u", bpb->spf);
printf(" spt=%u hds=%u hid=%u", bpb->spt, bpb->hds, bpb->hid);
if (bpb->bsec)
- printf(" bsec=%u", bpb->bsec);
+ printf(" bsec=%u", bpb->bsec);
if (!bpb->spf) {
- printf(" bspf=%u rdcl=%u", bpb->bspf, bpb->rdcl);
- printf(" infs=");
- printf(bpb->infs == MAXU16 ? "%#x" : "%u", bpb->infs);
- printf(" bkbs=");
- printf(bpb->bkbs == MAXU16 ? "%#x" : "%u", bpb->bkbs);
+ printf(" bspf=%u rdcl=%u", bpb->bspf, bpb->rdcl);
+ printf(" infs=");
+ printf(bpb->infs == MAXU16 ? "%#x" : "%u", bpb->infs);
+ printf(" bkbs=");
+ printf(bpb->bkbs == MAXU16 ? "%#x" : "%u", bpb->bkbs);
}
printf("\n");
}
@@ -927,21 +905,19 @@
/*
* Check a disk geometry value.
*/
-static u_int
-ckgeom(const char *fname, u_int val, const char *msg)
+static u_int ckgeom(const char *fname, u_int val, const char *msg)
{
if (!val)
- errx(1, "%s: no default %s", fname, msg);
+ errx(1, "%s: no default %s", fname, msg);
if (val > MAXU16)
- errx(1, "%s: illegal %s %d", fname, msg, val);
+ errx(1, "%s: illegal %s %d", fname, msg, val);
return val;
}
/*
* Convert and check a numeric option argument.
*/
-static u_int
-argtou(const char *arg, u_int lo, u_int hi, const char *msg)
+static u_int argtou(const char *arg, u_int lo, u_int hi, const char *msg)
{
char *s;
u_long x;
@@ -949,15 +925,14 @@
errno = 0;
x = strtoul(arg, &s, 0);
if (errno || !*arg || *s || x < lo || x > hi)
- errx(1, "%s: bad %s", arg, msg);
+ errx(1, "%s: bad %s", arg, msg);
return x;
}
/*
* Same for off_t, with optional skmgpP suffix
*/
-static off_t
-argtooff(const char *arg, const char *msg)
+static off_t argtooff(const char *arg, const char *msg)
{
char *s;
off_t x;
@@ -965,40 +940,40 @@
x = strtoll(arg, &s, 0);
/* allow at most one extra char */
if (errno || x < 0 || (s[0] && s[1]) )
- errx(1, "%s: bad %s", arg, msg);
- if (*s) { /* the extra char is the multiplier */
- switch (*s) {
- default:
- errx(1, "%s: bad %s", arg, msg);
- /* notreached */
-
- case 's': /* sector */
- case 'S':
- x <<= 9; /* times 512 */
- break;
+ errx(1, "%s: bad %s", arg, msg);
+ if (*s) { /* the extra char is the multiplier */
+ switch (*s) {
+ default:
+ errx(1, "%s: bad %s", arg, msg);
+ /* notreached */
- case 'k': /* kilobyte */
- case 'K':
- x <<= 10; /* times 1024 */
- break;
+ case 's': /* sector */
+ case 'S':
+ x <<= 9; /* times 512 */
+ break;
- case 'm': /* megabyte */
- case 'M':
- x <<= 20; /* times 1024*1024 */
- break;
+ case 'k': /* kilobyte */
+ case 'K':
+ x <<= 10; /* times 1024 */
+ break;
- case 'g': /* gigabyte */
- case 'G':
- x <<= 30; /* times 1024*1024*1024 */
- break;
+ case 'm': /* megabyte */
+ case 'M':
+ x <<= 20; /* times 1024*1024 */
+ break;
- case 'p': /* partition start */
- case 'P': /* partition start */
- case 'l': /* partition length */
- case 'L': /* partition length */
- errx(1, "%s: not supported yet %s", arg, msg);
- /* notreached */
- }
+ case 'g': /* gigabyte */
+ case 'G':
+ x <<= 30; /* times 1024*1024*1024 */
+ break;
+
+ case 'p': /* partition start */
+ case 'P': /* partition start */
+ case 'l': /* partition length */
+ case 'L': /* partition length */
+ errx(1, "%s: not supported yet %s", arg, msg);
+ /* notreached */
+ }
}
return x;
}
@@ -1006,15 +981,14 @@
/*
* Check a volume label.
*/
-static int
-oklabel(const char *src)
+static int oklabel(const char *src)
{
int c, i;
for (i = 0; i <= 11; i++) {
- c = (u_char)*src++;
- if (c < ' ' + !i || strchr("\"*+,./:;<=>?[\\]|", c))
- break;
+ c = (u_char)*src++;
+ if (c < ' ' + !i || strchr("\"*+,./:;<=>?[\\]|", c))
+ break;
}
return i && !c;
}
@@ -1022,58 +996,55 @@
/*
* Make a volume label.
*/
-static void
-mklabel(u_int8_t *dest, const char *src)
+static void mklabel(u_int8_t *dest, const char *src)
{
int c, i;
for (i = 0; i < 11; i++) {
- c = *src ? toupper(*src++) : ' ';
- *dest++ = !i && c == '\xe5' ? 5 : c;
+ c = *src ? toupper(*src++) : ' ';
+ *dest++ = !i && c == '\xe5' ? 5 : c;
}
}
/*
* Copy string, padding with spaces.
*/
-static void
-setstr(u_int8_t *dest, const char *src, size_t len)
+static void setstr(u_int8_t *dest, const char *src, size_t len)
{
while (len--)
- *dest++ = *src ? *src++ : ' ';
+ *dest++ = *src ? *src++ : ' ';
}
/*
* Print usage message.
*/
-static void
-usage(void)
+static void usage(void)
{
- fprintf(stderr,
- "usage: newfs_msdos [ -options ] special [disktype]\n"
- "where the options are:\n"
- "\t-@ create file system at specified offset\n"
- "\t-B get bootstrap from file\n"
- "\t-C create image file with specified size\n"
- "\t-F FAT type (12, 16, or 32)\n"
- "\t-I volume ID\n"
- "\t-L volume label\n"
- "\t-N don't create file system: just print out parameters\n"
- "\t-O OEM string\n"
- "\t-S bytes/sector\n"
- "\t-a sectors/FAT\n"
- "\t-b block size\n"
- "\t-c sectors/cluster\n"
- "\t-e root directory entries\n"
- "\t-f standard format\n"
- "\t-h drive heads\n"
- "\t-i file system info sector\n"
- "\t-k backup boot sector\n"
- "\t-m media descriptor\n"
- "\t-n number of FATs\n"
- "\t-o hidden sectors\n"
- "\t-r reserved sectors\n"
- "\t-s file system size (sectors)\n"
- "\t-u sectors/track\n");
- exit(1);
+ fprintf(stderr,
+ "usage: newfs_msdos [ -options ] special [disktype]\n"
+ "where the options are:\n"
+ "\t-@ create file system at specified offset\n"
+ "\t-B get bootstrap from file\n"
+ "\t-C create image file with specified size\n"
+ "\t-F FAT type (12, 16, or 32)\n"
+ "\t-I volume ID\n"
+ "\t-L volume label\n"
+ "\t-N don't create file system: just print out parameters\n"
+ "\t-O OEM string\n"
+ "\t-S bytes/sector\n"
+ "\t-a sectors/FAT\n"
+ "\t-b block size\n"
+ "\t-c sectors/cluster\n"
+ "\t-e root directory entries\n"
+ "\t-f standard format\n"
+ "\t-h drive heads\n"
+ "\t-i file system info sector\n"
+ "\t-k backup boot sector\n"
+ "\t-m media descriptor\n"
+ "\t-n number of FATs\n"
+ "\t-o hidden sectors\n"
+ "\t-r reserved sectors\n"
+ "\t-s file system size (sectors)\n"
+ "\t-u sectors/track\n");
+ exit(1);
}