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freebsd-nq/sbin/gpt/gpt.c

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Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
/*
* Copyright (c) 2002 Marcel Moolenaar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* CRC32 code derived from work by Gary S. Brown.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/types.h>
#include <sys/disk.h>
#include <sys/stat.h>
#include <sys/uuid.h>
#include <sys/gpt.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "map.h"
#include "gpt.h"
char device_name[MAXPATHLEN];
off_t mediasz;
u_int parts;
u_int secsz;
int readonly, verbose;
static uint32_t crc32_tab[] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
};
uint32_t
crc32(const void *buf, size_t size)
{
const uint8_t *p;
uint32_t crc;
p = buf;
crc = ~0U;
while (size--)
crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
return crc ^ ~0U;
}
void
unicode16(short *dst, const wchar_t *src, size_t len)
{
while (len-- && *src != 0)
*dst++ = *src++;
if (len)
*dst = 0;
}
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
#ifdef NEED_UUID_FUNCTIONS
void
uuid_create(uuid_t *u, uint32_t *st __unused)
{
uuidgen(u, 1);
}
void
uuid_from_string(const char *s, uuid_t *u, uint32_t *st)
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
{
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
int n;
*st = uuid_s_invalid_string_uuid;
if (strlen(s) != 36 || s[8] != '-')
return;
n = sscanf(s,
"%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx",
&u->time_low, &u->time_mid, &u->time_hi_and_version,
&u->clock_seq_hi_and_reserved, &u->clock_seq_low, &u->node[0],
&u->node[1], &u->node[2], &u->node[3], &u->node[4], &u->node[5]);
if (n != 11)
return;
n = u->clock_seq_hi_and_reserved;
if ((n & 0x80) != 0x00 && /* variant 0? */
(n & 0xc0) != 0x80 && /* variant 1? */
(n & 0xe0) != 0xc0) /* variant 2? */
*st = uuid_s_bad_version;
else
*st = uuid_s_ok;
}
int32_t
uuid_is_nil(uuid_t *u, uint32_t *st __unused)
{
uint32_t *p;
p = (uint32_t*)u;
return ((p[0] == 0 && p[1] == 0 && p[2] == 0 && p[3] == 0) ? 1 : 0);
}
void
uuid_to_string(uuid_t *u, char **s, uint32_t *st __unused)
{
char buf[40];
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
u->time_low, u->time_mid, u->time_hi_and_version,
u->clock_seq_hi_and_reserved, u->clock_seq_low, u->node[0],
u->node[1], u->node[2], u->node[3], u->node[4], u->node[5]);
*s = strdup(buf);
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
}
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
#endif
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
void*
gpt_read(int fd, off_t lba, size_t count)
{
off_t ofs;
void *buf;
count *= secsz;
buf = malloc(count);
if (buf == NULL)
return (NULL);
ofs = lba * secsz;
if (lseek(fd, ofs, SEEK_SET) == ofs &&
read(fd, buf, count) == (ssize_t)count)
return (buf);
free(buf);
return (NULL);
}
int
gpt_write(int fd, map_t *map)
{
off_t ofs;
size_t count;
count = map->map_size * secsz;
ofs = map->map_start * secsz;
if (lseek(fd, ofs, SEEK_SET) == ofs &&
write(fd, map->map_data, count) == (ssize_t)count)
return (0);
return (-1);
}
static int
gpt_gpt(int fd, off_t lba)
{
off_t size;
struct gpt_ent *ent;
struct gpt_hdr *hdr;
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
char *p, *s;
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
map_t *m;
size_t blocks, tblsz;
unsigned int i;
uint32_t crc;
hdr = gpt_read(fd, lba, 1);
if (hdr == NULL)
return (-1);
if (memcmp(hdr->hdr_sig, GPT_HDR_SIG, sizeof(hdr->hdr_sig)))
goto fail_hdr;
crc = hdr->hdr_crc_self;
hdr->hdr_crc_self = 0;
if (crc32(hdr, hdr->hdr_size) != crc) {
if (verbose)
warnx("%s: Bad CRC in GPT header at sector %llu",
device_name, (long long)lba);
goto fail_hdr;
}
tblsz = hdr->hdr_entries * hdr->hdr_entsz;
blocks = tblsz / secsz + ((tblsz % secsz) ? 1 : 0);
/* Use generic pointer to deal with hdr->hdr_entsz != sizeof(*ent). */
p = gpt_read(fd, hdr->hdr_lba_table, blocks);
if (p == NULL)
return (-1);
if (crc32(p, tblsz) != hdr->hdr_crc_table) {
if (verbose)
warnx("%s: Bad CRC in GPT table at sector %llu",
device_name, (long long)hdr->hdr_lba_table);
goto fail_ent;
}
if (verbose > 1)
warnx("%s: %s GPT at sector %llu", device_name,
(lba == 1) ? "Pri" : "Sec", (long long)lba);
m = map_add(lba, 1, (lba == 1)
? MAP_TYPE_PRI_GPT_HDR : MAP_TYPE_SEC_GPT_HDR, hdr);
if (m == NULL)
return (-1);
m = map_add(hdr->hdr_lba_table, blocks, (lba == 1)
? MAP_TYPE_PRI_GPT_TBL : MAP_TYPE_SEC_GPT_TBL, p);
if (m == NULL)
return (-1);
if (lba != 1)
return (0);
for (i = 0; i < hdr->hdr_entries; i++) {
ent = (void*)(p + i * hdr->hdr_entsz);
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
if (uuid_is_nil(&ent->ent_type, NULL))
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
continue;
size = ent->ent_lba_end - ent->ent_lba_start + 1LL;
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
if (verbose > 2) {
uuid_to_string(&ent->ent_type, &s, NULL);
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
warnx(
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
"%s: GPT partition: type=%s, start=%llu, size=%llu", device_name, s,
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
(long long)ent->ent_lba_start, (long long)size);
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
free(s);
}
m = map_add(ent->ent_lba_start, size, MAP_TYPE_GPT_PART, ent);
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
if (m == NULL)
return (-1);
}
return (0);
fail_ent:
free(p);
fail_hdr:
free(hdr);
return (0);
}
int
gpt_open(const char *dev)
{
struct stat sb;
struct mbr *mbr;
map_t *m;
uint32_t size, start;
unsigned int i;
int fd;
if (!stat(dev, &sb)) {
strlcpy(device_name, dev, sizeof(device_name));
goto found;
}
snprintf(device_name, sizeof(device_name), "/dev/%s", dev);
if (!stat(device_name, &sb))
goto found;
strlcpy(device_name, dev, sizeof(device_name));
return (-1);
found:
fd = open(device_name, (readonly) ? O_RDONLY : O_RDWR|O_EXCL);
if (fd == -1)
return (-1);
if ((sb.st_mode & S_IFMT) != S_IFREG) {
if (ioctl(fd, DIOCGSECTORSIZE, &secsz) == -1 ||
ioctl(fd, DIOCGMEDIASIZE, &mediasz) == -1)
goto close;
} else {
secsz = 512; /* Fixed size for files. */
if (sb.st_size % secsz) {
errno = EINVAL;
goto close;
}
mediasz = sb.st_size;
}
/*
* We require an absolute minimum of 6 sectors. One for the MBR,
* 2 for the GPT header, 2 for the GPT table and one to hold some
* user data. Let's catch this extreme border case here so that
* we don't have to worry about it later.
*/
if (mediasz / secsz < 6) {
errno = ENODEV;
goto close;
}
if (verbose)
warnx("%s: mediasize=%llu; sectorsize=%u; blocks=%llu",
device_name, (long long)mediasz, secsz,
(long long)(mediasz / secsz));
map_init(mediasz / secsz);
/*
* MBR
*/
mbr = gpt_read(fd, 0LL, 1);
if (mbr == NULL)
goto close;
if (mbr->mbr_sig == MBR_SIG) {
if (verbose > 1)
warnx("%s: MBR at sector 0", device_name);
m = map_add(0LL, 1LL, MAP_TYPE_MBR, mbr);
if (m == NULL)
goto close;
for (i = 0; i < 4; i++) {
start = mbr->mbr_part[i].part_start_hi;
start = (start << 16) + mbr->mbr_part[i].part_start_lo;
size = mbr->mbr_part[i].part_size_hi;
size = (size << 16) + mbr->mbr_part[i].part_size_lo;
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
if (start == 0 && size == 0)
continue;
if (verbose > 2)
warnx("%s: MBR partition: type=%d, start=%llu, size=%llu",
device_name, mbr->mbr_part[i].part_typ,
(long long)start, (long long)size);
if (mbr->mbr_part[i].part_typ == 0xee)
continue;
m = map_add(start, size, MAP_TYPE_MBR_PART,
mbr->mbr_part + i);
if (m == NULL)
goto close;
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
}
} else {
if (verbose)
warnx("%s: MBR not found", device_name);
free(mbr);
}
/*
* GPT
*/
if (gpt_gpt(fd, 1LL) == -1)
goto close;
if (gpt_gpt(fd, mediasz / secsz - 1LL) == -1)
goto close;
return (fd);
close:
close(fd);
return (-1);
}
void
gpt_close(int fd)
{
/* XXX post processing? */
close(fd);
}
static struct {
int (*fptr)(int, char *[]);
const char *name;
} cmdsw[] = {
o Add functionality to add a GPT partition, o Use DCE compliant UUID functions and provide local implementations if they don't exist, o Move dumping of the map to show.c and print the partition type, o Some cleanups and rearrangements. The default GPT partition type is UFS. When no starting block or size are specified, the tool will create a partition in the first free space it find (or that fits, depending on the size).
2002-10-27 03:23:05 +00:00
{ cmd_add, "add" },
Add the functionality to create an (empty) GPT from scratch. The code is directly copied from migrate.c. The intend is to express migrate in terms of create and add. The functionality to add partitions is not yet there.
2002-10-25 05:23:08 +00:00
{ cmd_create, "create" },
Grab a snapshot of Marcel's gpt tool. This is still a work-in-progress but is useful to have handy. EFI GPT partitions are used instead of the fdisk+disklabel combination. They are pure 64 bit LBA, are fully extensible, support up to 16383 partitons per disk, etc.
2002-07-20 19:27:43 +00:00
{ NULL, "delete" },
{ cmd_destroy, "destroy" },
{ NULL, "help" },
{ cmd_migrate, "migrate" },
{ cmd_recover, "recover" },
{ NULL, "rename" },
{ cmd_show, "show" },
{ NULL, "verify" },
{ NULL, NULL }
};
static void
usage(void)
{
fprintf(stderr,
"usage: %s [-rv] [-p nparts] command [options] device\n",
getprogname());
exit(1);
}
static void
prefix(const char *cmd)
{
char *pfx;
const char *prg;
prg = getprogname();
pfx = malloc(strlen(prg) + strlen(cmd) + 2);
/* Don't bother failing. It's not important */
if (pfx == NULL)
return;
sprintf(pfx, "%s %s", prg, cmd);
setprogname(pfx);
}
int
main(int argc, char *argv[])
{
char *cmd, *p;
int ch, i;
/* Get the generic options */
while ((ch = getopt(argc, argv, "p:rv")) != -1) {
switch(ch) {
case 'p':
if (parts > 0)
usage();
parts = strtol(optarg, &p, 10);
if (*p != 0 || parts < 1)
usage();
break;
case 'r':
readonly = 1;
break;
case 'v':
verbose++;
break;
default:
usage();
}
}
if (!parts)
parts = 128;
if (argc == optind)
usage();
cmd = argv[optind++];
for (i = 0; cmdsw[i].name != NULL && strcmp(cmd, cmdsw[i].name); i++);
if (cmdsw[i].fptr == NULL)
errx(1, "unknown command: %s", cmd);
prefix(cmd);
return ((*cmdsw[i].fptr)(argc, argv));
}
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