/*
- * sfdisk version 3.0 - aeb - 950813
- *
* Copyright (C) 1995 Andries E. Brouwer (aeb@cwi.nl)
+ * Copyright (C) 2014 Karel Zak <kzak@redhat.com>
*
* This program is free software. You can redistribute it and/or
* modify it under the terms of the GNU General Public License
* to allow a partition to cross cylinder 8064, and to write an
* extended partition past the 4GB mark.
*
- * The current program is a rewrite from scratch, and I started a
- * version numbering at 3.0.
- * Andries Brouwer, aeb@cwi.nl, 950813
- *
- * Well, a good user interface is still lacking. On the other hand,
- * many configurations cannot be handled by any other fdisk.
- * I changed the name to sfdisk to prevent confusion. - aeb, 970501
+ * Karel Zak wrote new sfdisk based on libfdisk from util-linux
+ * in 2014.
*/
+#include <unistd.h>
#include <stdio.h>
-#include <stdlib.h> /* atoi, free */
-#include <stdarg.h> /* varargs */
-#include <unistd.h> /* read, write */
-#include <fcntl.h> /* O_RDWR */
-#include <errno.h> /* ERANGE */
-#include <string.h> /* strchr(), strrchr() */
+#include <stdlib.h>
+#include <string.h>
#include <ctype.h>
+#include <errno.h>
#include <getopt.h>
-#include <sys/ioctl.h>
#include <sys/stat.h>
-#include <sys/utsname.h>
-#include <limits.h>
#include "c.h"
-#include "nls.h"
#include "xalloc.h"
-#include "blkdev.h"
-#include "linux_version.h"
-#include "pathnames.h"
-#include "canonicalize.h"
-#include "rpmatch.h"
-#include "closestream.h"
+#include "nls.h"
+#include "debug.h"
#include "strutils.h"
-#include "sysfs.h"
-
-struct systypes {
- unsigned char type;
- char *name;
-};
-
-static struct systypes i386_sys_types[] = {
- #include "pt-mbr-partnames.h"
-};
-
-static char *partname(char *dev, int pno, int lth);
-
-/*
- * Table of contents:
- * A. About seeking
- * B. About sectors
- * C. About heads, sectors and cylinders
- * D. About system Ids
- * E. About partitions
- * F. The standard input
- * G. The command line
- * H. Listing the current situation
- * I. Writing the new situation
- */
-int exit_status = 0;
-
-int force = 0; /* 1: do what I say, even if it is stupid ... */
-int quiet = 0; /* 1: suppress all warnings */
-/* IA-64 gcc spec file currently does -DLinux... */
-#undef Linux
-int Linux = 0; /* 1: suppress warnings irrelevant for Linux */
-int DOS = 0; /* 1: shift extended partitions by #sectors, not 1 */
-int DOS_extended = 0; /* 1: use starting cylinder boundary of extd partn */
-int dump = 0; /* 1: list in a format suitable for later input */
-int verify = 0; /* 1: check that listed partition is reasonable */
-int no_write = 0; /* 1: do not actually write to disk */
-int no_reread = 0; /* 1: skip the BLKRRPART ioctl test at startup */
-int leave_last = 0; /* 1: don't allocate the last cylinder */
-int opt_list = 0;
-char *save_sector_file = NULL;
-char *restore_sector_file = NULL;
-
-/*
- * A. About seeking
- */
-
-/*
- * sseek: seek to specified sector - return 0 on failure
- *
- * Note: we use 512-byte sectors here, irrespective of the hardware ss.
- */
-
-static int
-sseek(char *dev, int fd, unsigned long s) {
- off_t in, out;
- in = ((off_t) s << 9);
-
- if ((out = lseek(fd, in, SEEK_SET)) != in) {
- warn(_("seek error on %s - cannot seek to %lu"), dev, s);
- return 0;
- }
-
- if (in != out) {
- warnx(_("seek error: wanted 0x%08x%08x, got 0x%08x%08x"),
- (unsigned int)(in >> 32), (unsigned int)(in & 0xffffffff),
- (unsigned int)(out >> 32), (unsigned int)(out & 0xffffffff));
- return 0;
- }
- return 1;
-}
-
-/*
- * B. About sectors
- */
-
-/*
- * We preserve all sectors read in a chain - some of these will
- * have to be modified and written back.
- */
-struct sector {
- struct sector *next;
- unsigned long long sectornumber;
- int to_be_written;
- char data[512];
-} *sectorhead;
-
-static void
-free_sectors(void) {
- struct sector *s;
-
- while (sectorhead) {
- s = sectorhead;
- sectorhead = s->next;
- free(s);
- }
-}
-
-static struct sector *
-get_sector(char *dev, int fd, unsigned long long sno) {
- struct sector *s;
-
- for (s = sectorhead; s; s = s->next)
- if (s->sectornumber == sno)
- return s;
-
- if (!sseek(dev, fd, sno))
- return 0;
-
- s = xmalloc(sizeof(struct sector));
-
- if (read(fd, s->data, sizeof(s->data)) != sizeof(s->data)) {
- warn(_("read error on %s - cannot read sector %llu"), dev, sno);
- free(s);
- return 0;
- }
-
- s->next = sectorhead;
- sectorhead = s;
- s->sectornumber = sno;
- s->to_be_written = 0;
-
- return s;
-}
-
-static int
-msdos_signature(struct sector *s) {
- unsigned char *data = (unsigned char *)s->data;
- if (data[510] == 0x55 && data[511] == 0xaa)
- return 1;
- return 0;
-}
-
-static int
-write_sectors(char *dev, int fd) {
- struct sector *s;
-
- for (s = sectorhead; s; s = s->next)
- if (s->to_be_written) {
- if (!sseek(dev, fd, s->sectornumber))
- return 0;
- if (write(fd, s->data, sizeof(s->data)) != sizeof(s->data)) {
- warn(_("write error on %s - cannot write sector %llu"),
- dev, s->sectornumber);
- return 0;
- }
- s->to_be_written = 0;
- }
- return 1;
-}
-
-static void
-ulong_to_chars(unsigned long u, char *uu) {
- int i;
-
- for (i = 0; i < 4; i++) {
- uu[i] = (u & 0xff);
- u >>= 8;
- }
-}
-
-static unsigned long
-chars_to_ulong(unsigned char *uu) {
- int i;
- unsigned long u = 0;
-
- for (i = 3; i >= 0; i--)
- u = (u << 8) | uu[i];
- return u;
-}
-
-static int
-save_sectors(char *dev, int fdin) {
- struct sector *s;
- char ss[516];
- int fdout = -1;
-
- fdout = open(save_sector_file, O_WRONLY | O_CREAT, 0444);
- if (fdout < 0) {
- warn(_("cannot open partition sector save file (%s)"),
- save_sector_file);
- goto err;
- }
-
- for (s = sectorhead; s; s = s->next)
- if (s->to_be_written) {
- ulong_to_chars(s->sectornumber, ss);
- if (!sseek(dev, fdin, s->sectornumber))
- goto err;
- if (read(fdin, ss + 4, 512) != 512) {
- warn(_("read error on %s - cannot read sector %llu"),
- dev, s->sectornumber);
- goto err;
- }
- if (write(fdout, ss, sizeof(ss)) != sizeof(ss)) {
- warn(_("write error on %s"), save_sector_file);
- goto err;
- }
- }
-
- if (close_fd(fdout) != 0) {
- warn(_("write failed: %s"), save_sector_file);
- return 0;
- }
- return 1;
-
- err:
- if (fdout >= 0)
- if (close_fd(fdout) != 0)
- warn(_("write failed: %s"), save_sector_file);
- return 0;
-}
-
-static int reread_disk_partition(char *dev, int fd);
-
-static int
-restore_sectors(char *dev) {
- int fdin = -1, fdout = -1;
- int ct;
- struct stat statbuf;
- char *ss0 = NULL, *ss;
- unsigned long sno;
-
- if (stat(restore_sector_file, &statbuf) < 0) {
- warn(_("cannot stat partition restore file (%s)"),
- restore_sector_file);
- goto err;
- }
- if (statbuf.st_size % 516) {
- warnx(_("partition restore file has wrong size - not restoring"));
- goto err;
- }
-
- ss0 = xmalloc(statbuf.st_size);
- ss = ss0;
-
- fdin = open(restore_sector_file, O_RDONLY);
- if (fdin < 0) {
- warn(_("cannot open partition restore file (%s)"),
- restore_sector_file);
- goto err;
- }
- if (read(fdin, ss, statbuf.st_size) != statbuf.st_size) {
- warn(_("error reading %s"), restore_sector_file);
- goto err;
- }
-
- fdout = open(dev, O_WRONLY);
- if (fdout < 0) {
- warn(_("cannot open device %s for writing"), dev);
- goto err;
- }
-
- ct = statbuf.st_size / 516;
- while (ct--) {
- sno = chars_to_ulong((unsigned char *)ss);
- if (!sseek(dev, fdout, sno))
- goto err;
- if (write(fdout, ss + 4, 512) != 512) {
- warn(_("error writing sector %lu on %s"), sno, dev);
- goto err;
- }
- ss += 516;
- }
- free(ss0);
- ss0 = NULL;
-
- if (!reread_disk_partition(dev, fdout)) /* closes fdout */
- goto err;
- close(fdin);
- if (close_fd(fdout) != 0) {
- warnx(_("write failed: %s"), dev);
- return 0;
- }
- return 1;
-
- err:
- free(ss0);
- if (fdin >= 0)
- close(fdin);
- if (fdout >= 0)
- close(fdout);
-
- return 0;
-}
-
-/*
- * C. About heads, sectors and cylinders
- */
-
-/*
- * <linux/hdreg.h> defines HDIO_GETGEO and
- * struct hd_geometry {
- * unsigned char heads;
- * unsigned char sectors;
- * unsigned short cylinders;
- * unsigned long start;
- * };
- *
- * For large disks g.cylinders is truncated, so we use BLKGETSIZE.
- */
-
-/*
- * We consider several geometries for a disk:
- * B - the BIOS geometry, gotten from the kernel via HDIO_GETGEO
- * F - the fdisk geometry
- * U - the user-specified geometry
- *
- * 0 means unspecified / unknown
- */
-struct geometry {
- unsigned long long total_size; /* in sectors */
- unsigned long cylindersize; /* in sectors */
- unsigned long heads, sectors, cylinders;
- unsigned long start;
-} B, F, U;
-
-static struct geometry
-get_geometry(char *dev, int fd, int silent) {
- struct hd_geometry g;
- unsigned long cyls;
- unsigned long long sectors;
- struct geometry R;
-
-#ifdef HDIO_GETGEO
- if (ioctl(fd, HDIO_GETGEO, &g))
-#endif
- {
- g.heads = g.sectors = g.cylinders = g.start = 0;
- if (!silent)
- warnx(_("Disk %s: cannot get geometry"), dev);
- }
-
- R.start = g.start;
- R.heads = g.heads;
- R.sectors = g.sectors;
- R.cylindersize = R.heads * R.sectors;
- R.cylinders = 0;
- R.total_size = 0;
-
- if (blkdev_get_sectors(fd, §ors) == -1) {
- /* maybe an ordinary file */
- struct stat s;
-
- if (fstat(fd, &s) == 0 && S_ISREG(s.st_mode))
- R.total_size = (s.st_size >> 9);
- else if (!silent)
- warnx(_("Disk %s: cannot get size"), dev);
- } else
- R.total_size = sectors;
-
- if (R.cylindersize && R.total_size) {
- sectors /= R.cylindersize;
- cyls = sectors;
- if (cyls != sectors)
- cyls = ~0;
- R.cylinders = cyls;
- }
-
- return R;
-}
-
-static void
-get_cylindersize(char *dev, int fd, int silent) {
- struct geometry R;
-
- R = get_geometry(dev, fd, silent);
-
- B.heads = (U.heads ? U.heads : R.heads ? R.heads : 255);
- B.sectors = (U.sectors ? U.sectors : R.sectors ? R.sectors : 63);
- B.cylinders = (U.cylinders ? U.cylinders : R.cylinders);
-
- B.cylindersize = B.heads * B.sectors;
- B.total_size = R.total_size;
-
- if (B.cylinders == 0 && B.cylindersize != 0)
- B.cylinders = B.total_size / B.cylindersize;
-
- if (R.start && !force) {
- warnx(_("Warning: start=%lu - this looks like a partition rather than\n"
- "the entire disk. Using fdisk on it is probably meaningless.\n"
- "[Use the --force option if you really want this]"),
- R.start);
- exit(EXIT_FAILURE);
- }
-#if 0
- if (R.heads && B.heads != R.heads)
- warnx(_("Warning: HDIO_GETGEO says that there are %lu heads"),
- R.heads);
- if (R.sectors && B.sectors != R.sectors)
- warnx(_("Warning: HDIO_GETGEO says that there are %lu sectors"),
- R.sectors);
- if (R.cylinders && B.cylinders != R.cylinders
- && B.cylinders < 65536 && R.cylinders < 65536)
- warnx(_("Warning: BLKGETSIZE/HDIO_GETGEO says that there are %lu cylinders"),
- R.cylinders);
-#endif
-
- if (B.sectors > 63)
- warnx(_("Warning: unlikely number of sectors (%lu) - usually at most 63\n"
- "This will give problems with all software that uses C/H/S addressing."),
- B.sectors);
- if (!silent)
- printf(_("\nDisk %s: %lu cylinders, %lu heads, %lu sectors/track\n"),
- dev, B.cylinders, B.heads, B.sectors);
-}
-
-typedef struct {
- unsigned char h, s, c;
-} __attribute__ ((packed)) chs; /* has some c bits in s */
-chs zero_chs = { 0, 0, 0 };
-
-typedef struct {
- unsigned long h, s, c;
-} longchs;
-longchs zero_longchs;
-
-static chs
-longchs_to_chs(longchs aa, struct geometry G) {
- chs a;
-
- if (aa.h < 256 && aa.s < 64 && aa.c < 1024) {
- a.h = aa.h;
- a.s = aa.s | ((aa.c >> 2) & 0xc0);
- a.c = (aa.c & 0xff);
- } else if (G.heads && G.sectors) {
- a.h = G.heads - 1;
- a.s = G.sectors | 0xc0;
- a.c = 0xff;
- } else
- a = zero_chs;
- return a;
-}
-
-static longchs
-chs_to_longchs(chs a) {
- longchs aa;
-
- aa.h = a.h;
- aa.s = (a.s & 0x3f);
- aa.c = (a.s & 0xc0);
- aa.c = (aa.c << 2) + a.c;
- return aa;
-}
-
-static longchs
-ulong_to_longchs(unsigned long sno, struct geometry G) {
- longchs aa;
-
- if (G.heads && G.sectors && G.cylindersize) {
- aa.s = 1 + sno % G.sectors;
- aa.h = (sno / G.sectors) % G.heads;
- aa.c = sno / G.cylindersize;
- return aa;
- } else {
- return zero_longchs;
- }
-}
-
-static chs
-ulong_to_chs(unsigned long sno, struct geometry G) {
- return longchs_to_chs(ulong_to_longchs(sno, G), G);
-}
-
-#if 0
-static unsigned long
-longchs_to_ulong(longchs aa, struct geometry G) {
- return (aa.c * G.cylindersize + aa.h * G.sectors + aa.s - 1);
-}
-
-static unsigned long
-chs_to_ulong(chs a, struct geometry G) {
- return longchs_to_ulong(chs_to_longchs(a), G);
-}
-#endif
-
-static int
-is_equal_chs(chs a, chs b) {
- return (a.h == b.h && a.s == b.s && a.c == b.c);
-}
-
-static int
-chs_ok(chs a, char *v, char *w) {
- longchs aa = chs_to_longchs(a);
- int ret = 1;
-
- if (is_equal_chs(a, zero_chs))
- return 1;
- if (B.heads && aa.h >= B.heads) {
- warnx(_("%s of partition %s has impossible value for head: "
- "%lu (should be in 0-%lu)"), w, v, aa.h, B.heads - 1);
- ret = 0;
- }
- if (B.sectors && (aa.s == 0 || aa.s > B.sectors)) {
- warnx(_("%s of partition %s has impossible value for sector: "
- "%lu (should be in 1-%lu)"), w, v, aa.s, B.sectors);
- ret = 0;
- }
- if (B.cylinders && aa.c >= B.cylinders) {
- warnx(_("%s of partition %s has impossible value for cylinders: "
- "%lu (should be in 0-%lu)"), w, v, aa.c, B.cylinders - 1);
- ret = 0;
- }
- return ret;
-}
-
-/*
- * D. About system Ids
- */
-
-#define EMPTY_PARTITION 0
-#define EXTENDED_PARTITION 5
-#define WIN98_EXTENDED 0x0f
-#define DM6_AUX1PARTITION 0x51
-#define DM6_AUX3PARTITION 0x53
-#define DM6_PARTITION 0x54
-#define EZD_PARTITION 0x55
-#define LINUX_SWAP 0x82
-#define LINUX_NATIVE 0x83
-#define LINUX_EXTENDED 0x85
-#define BSD_PARTITION 0xa5
-#define NETBSD_PARTITION 0xa9
-
-/* List of partition types */
-
-static const char *
-sysname(unsigned char type) {
- struct systypes *s;
-
- for (s = i386_sys_types; s->name; s++)
- if (s->type == type)
- return _(s->name);
- return _("Unknown");
-}
-
-static void
-list_types(void) {
- struct systypes *s;
-
- printf(_("Id Name\n\n"));
- for (s = i386_sys_types; s->name; s++)
- printf("%2x %s\n", s->type, _(s->name));
-}
-
-static int
-is_extended(unsigned char type) {
- return (type == EXTENDED_PARTITION
- || type == LINUX_EXTENDED || type == WIN98_EXTENDED);
-}
-
-static int
-is_bsd(unsigned char type) {
- return (type == BSD_PARTITION || type == NETBSD_PARTITION);
-}
-
-/*
- * E. About partitions
- */
-
-/* MS/DOS partition */
-
-struct partition {
- unsigned char bootable; /* 0 or 0x80 */
- chs begin_chs;
- unsigned char sys_type;
- chs end_chs;
- unsigned int start_sect; /* starting sector counting from 0 */
- unsigned int nr_sects; /* nr of sectors in partition */
-} __attribute__ ((packed));
-
-/* Unfortunately, partitions are not aligned, and non-Intel machines
- are unhappy with non-aligned integers. So, we need a copy by hand. */
-static int
-copy_to_int(unsigned char *cp) {
- unsigned int m;
-
- m = *cp++;
- m += (*cp++ << 8);
- m += (*cp++ << 16);
- m += (*cp++ << 24);
- return m;
-}
-
-static void
-copy_from_int(int m, char *cp) {
- *cp++ = (m & 0xff);
- m >>= 8;
- *cp++ = (m & 0xff);
- m >>= 8;
- *cp++ = (m & 0xff);
- m >>= 8;
- *cp++ = (m & 0xff);
-}
-
-static void
-copy_to_part(char *cp, struct partition *p) {
- p->bootable = *cp++;
- p->begin_chs.h = *cp++;
- p->begin_chs.s = *cp++;
- p->begin_chs.c = *cp++;
- p->sys_type = *cp++;
- p->end_chs.h = *cp++;
- p->end_chs.s = *cp++;
- p->end_chs.c = *cp++;
- p->start_sect = copy_to_int((unsigned char *)cp);
- p->nr_sects = copy_to_int((unsigned char *)cp + 4);
-}
-
-static void
-copy_from_part(struct partition *p, char *cp) {
- *cp++ = p->bootable;
- *cp++ = p->begin_chs.h;
- *cp++ = p->begin_chs.s;
- *cp++ = p->begin_chs.c;
- *cp++ = p->sys_type;
- *cp++ = p->end_chs.h;
- *cp++ = p->end_chs.s;
- *cp++ = p->end_chs.c;
- copy_from_int(p->start_sect, cp);
- copy_from_int(p->nr_sects, cp + 4);
-}
-
-/* Roughly speaking, Linux doesn't use any of the above fields except
- for partition type, start sector and number of sectors. (However,
- see also linux/drivers/scsi/fdomain.c.)
- The only way partition type is used (in the kernel) is the comparison
- for equality with EXTENDED_PARTITION (and these Disk Manager types). */
-
-struct part_desc {
- unsigned long long start;
- unsigned long long size;
- unsigned long long sector, offset; /* disk location of this info */
- struct partition p;
- struct part_desc *ep; /* extended partition containing this one */
- int ptype;
-#define DOS_TYPE 0
-#define BSD_TYPE 1
-} zero_part_desc;
-
-static struct part_desc *
-outer_extended_partition(struct part_desc *p) {
- while (p->ep)
- p = p->ep;
- return p;
-}
-
-static int
-is_parent(struct part_desc *pp, struct part_desc *p) {
- while (p) {
- if (pp == p)
- return 1;
- p = p->ep;
- }
- return 0;
-}
-
-struct disk_desc {
- struct part_desc partitions[512];
- int partno;
-} oldp, newp;
-
-/* determine where on the disk this information goes */
-static void
-add_sector_and_offset(struct disk_desc *z) {
- int pno;
- struct part_desc *p;
-
- for (pno = 0; pno < z->partno; pno++) {
- p = &(z->partitions[pno]);
- p->offset = 0x1be + (pno % 4) * sizeof(struct partition);
- p->sector = (p->ep ? p->ep->start : 0);
- }
-}
-
-/* tell the kernel to reread the partition tables */
-static int
-reread_ioctl(int fd) {
-#ifdef BLKRRPART
- if (ioctl(fd, BLKRRPART))
-#else
- errno = ENOSYS;
-#endif
- {
- /* perror might change errno */
- int err = errno;
-
- warn("BLKRRPART");
-
- /* 2.6.8 returns EIO for a zero table */
- if (err == EBUSY)
- return -1;
- }
- return 0;
-}
-
-/* reread after writing */
-static int
-reread_disk_partition(char *dev, int fd) {
- fflush(stdout);
- sync();
-
- if (is_blkdev(fd)) {
- printf(_("Re-reading the partition table ...\n"));
- if (reread_ioctl(fd) ) {
- warnx(_("The command to re-read the partition table failed.\n"
- "Run partprobe(8), kpartx(8) or reboot your system now,\n"
- "before using mkfs"));
- return 0;
- }
- }
-
- if (close_fd(fd) != 0) {
- warn(_("Error closing %s"), dev);
- return 0;
- }
- printf("\n");
-
- return 1;
-}
-
-/* find Linux name of this partition, assuming that it will have a name */
-static int
-index_to_linux(int pno, struct disk_desc *z) {
- int i, ct = 1;
- struct part_desc *p = &(z->partitions[0]);
- for (i = 0; i < pno; i++, p++)
- if (i < 4 || (p->size > 0 && !is_extended(p->p.sys_type)))
- ct++;
- return ct;
-}
-
-static int
-linux_to_index(int lpno, struct disk_desc *z) {
- int i, ct = 0;
- struct part_desc *p = &(z->partitions[0]);
- for (i = 0; i < z->partno && ct < lpno; i++, p++)
- if ((i < 4 || (p->size > 0 && !is_extended(p->p.sys_type)))
- && ++ct == lpno)
- return i;
- return -1;
-}
-
-static int
-asc_to_index(char *pnam, struct disk_desc *z) {
- int pnum, pno;
+#include "closestream.h"
- if (*pnam == '#') {
- pno = atoi(pnam + 1);
- } else {
- pnum = atoi(pnam);
- pno = linux_to_index(pnum, z);
- }
- if (!(pno >= 0 && pno < z->partno))
- errx(EXIT_FAILURE, _("%s: no such partition\n"), pnam);
- return pno;
-}
+#include "libfdisk.h"
/*
- * List partitions - in terms of sectors, blocks or cylinders
+ * sfdisk debug stuff (see fdisk.h and include/debug.h)
*/
-#define F_SECTOR 1
-#define F_BLOCK 2
-#define F_CYLINDER 3
-#define F_MEGABYTE 4
-
-int default_format = F_MEGABYTE;
-int specified_format = 0;
-int show_extended = 0;
-int one_only = 0;
-int one_only_pno;
-int increment = 0;
-
-static void
-set_format(char c) {
- switch (c) {
- default:
- warnx(_("unrecognized format - using sectors"));
- /* fallthrough */
- case 'S':
- specified_format = F_SECTOR;
- break;
- case 'B':
- specified_format = F_BLOCK;
- break;
- case 'C':
- specified_format = F_CYLINDER;
- break;
- case 'M':
- specified_format = F_MEGABYTE;
- break;
- }
-}
-
-static unsigned long
-unitsize(int format) {
- default_format = (B.cylindersize ? F_CYLINDER : F_MEGABYTE);
- if (!format && !(format = specified_format))
- format = default_format;
-
- switch (format) {
- default:
- case F_CYLINDER:
- if (B.cylindersize)
- return B.cylindersize;
- /* fallthrough */
- case F_SECTOR:
- return 1;
- case F_BLOCK:
- return 2;
- case F_MEGABYTE:
- return 2048;
- }
-}
-
-static unsigned long long
-get_disksize(int format) {
- if (B.total_size && leave_last)
- /* don't use last cylinder (--leave-last option) */
- return (B.total_size - B.cylindersize) / unitsize(format);
-
- return B.total_size / unitsize(format);
-}
-
-static void
-out_partition_header(char *dev, int format, struct geometry G) {
- if (dump) {
- printf("# partition table of %s\n", dev);
- printf("unit: sectors\n\n");
- return;
- }
-
- default_format = (G.cylindersize ? F_CYLINDER : F_MEGABYTE);
- if (!format && !(format = specified_format))
- format = default_format;
-
- switch (format) {
- default:
- warnx(_("unimplemented format - using %s"),
- G.cylindersize ? _("cylinders") : _("sectors"));
- /* fallthrough */
- case F_CYLINDER:
- if (G.cylindersize) {
- printf(_("Units: cylinders of %lu bytes, blocks of 1024 bytes"
- ", counting from %d\n\n"), G.cylindersize << 9, increment);
- printf(_(" Device Boot Start End #cyls #blocks Id System\n"));
- break;
- }
- /* fall through */
- case F_SECTOR:
- printf(_("Units: sectors of 512 bytes, counting from %d\n\n"),
- increment);
- printf(_(" Device Boot Start End #sectors Id System\n"));
- break;
- case F_BLOCK:
- printf(_("Units: blocks of 1024 bytes, counting from %d\n\n"),
- increment);
- printf(_(" Device Boot Start End #blocks Id System\n"));
- break;
- case F_MEGABYTE:
- printf(_("Units: 1MiB = 1024*1024 bytes, blocks of 1024 bytes"
- ", counting from %d\n\n"), increment);
- printf(_(" Device Boot Start End MiB #blocks Id System\n"));
- break;
- }
-}
-
-static void
-out_rounddown(int width, unsigned long long n, unsigned long unit, int inc) {
- printf("%*llu", width, inc + n / unit);
- if (unit != 1)
- putchar((n % unit) ? '+' : ' ');
- putchar(' ');
-}
+UL_DEBUG_DEFINE_MASK(sfdisk);
+UL_DEBUG_DEFINE_MASKANEMS(sfdisk) = UL_DEBUG_EMPTY_MASKNAMES;
-static void
-out_roundup(int width, unsigned long long n, unsigned long unit, int inc) {
- if (n == (unsigned long long)(-1))
- printf("%*s", width, "-");
- else
- printf("%*llu", width, inc + n / unit);
- if (unit != 1)
- putchar(((n + 1) % unit) ? '-' : ' ');
- putchar(' ');
-}
-
-static void
-out_roundup_size(int width, unsigned long long n, unsigned long unit) {
- printf("%*llu", width, (n + unit - 1) / unit);
- if (unit != 1)
- putchar((n % unit) ? '-' : ' ');
- putchar(' ');
-}
-
-static struct geometry
-get_fdisk_geometry_one(struct part_desc *p) {
- struct geometry G;
- chs b = p->p.end_chs;
- longchs bb = chs_to_longchs(b);
-
- memset(&G, 0, sizeof(struct geometry));
- G.heads = bb.h + 1;
- G.sectors = bb.s;
- G.cylindersize = G.heads * G.sectors;
- return G;
-}
-
-static int
-get_fdisk_geometry(struct disk_desc *z) {
- struct part_desc *p;
- int pno, agree;
- struct geometry G0, G;
-
- memset(&G0, 0, sizeof(struct geometry));
- agree = 0;
- for (pno = 0; pno < z->partno; pno++) {
- p = &(z->partitions[pno]);
- if (p->size != 0 && p->p.sys_type != 0) {
- G = get_fdisk_geometry_one(p);
- if (!G0.heads) {
- G0 = G;
- agree = 1;
- } else if (G.heads != G0.heads || G.sectors != G0.sectors) {
- agree = 0;
- break;
- }
- }
- }
- F = (agree ? G0 : B);
- return (F.sectors != B.sectors || F.heads != B.heads);
-}
-
-static void
-out_partition(char *dev, int format, struct part_desc *p,
- struct disk_desc *z, struct geometry G) {
- unsigned long long start, end, size;
- int pno, lpno;
-
- if (!format && !(format = specified_format))
- format = default_format;
-
- pno = p - &(z->partitions[0]); /* our index */
- lpno = index_to_linux(pno, z); /* name of next one that has a name */
- if (pno == linux_to_index(lpno, z)) /* was that us? */
- printf("%s", partname(dev, lpno, 10)); /* yes */
- else if (show_extended)
- printf(" - ");
- else
- return;
- putchar(dump ? ':' : ' ');
-
- start = p->start;
- end = p->start + p->size - 1;
- size = p->size;
-
- if (dump) {
- printf(" start=%9llu", start);
- printf(", size=%9llu", size);
- if (p->ptype == DOS_TYPE) {
- printf(", Id=%2x", p->p.sys_type);
- if (p->p.bootable == 0x80)
- printf(", bootable");
- }
- printf("\n");
- return;
- }
+#define SFDISKPROG_DEBUG_INIT (1 << 1)
+#define SFDISKPROG_DEBUG_PARSE (1 << 2)
+#define SFDISKPROG_DEBUG_MISC (1 << 3)
+#define SFDISKPROG_DEBUG_ALL 0xFFFF
- if (p->ptype != DOS_TYPE || p->p.bootable == 0)
- printf(" ");
- else if (p->p.bootable == 0x80)
- printf(" * ");
- else
- printf(" ? "); /* garbage */
+#define DBG(m, x) __UL_DBG(sfdisk, SFDISKPROG_DEBUG_, m, x)
+#define ON_DBG(m, x) __UL_DBG_CALL(sfdisk, SFDISKPROG_DEBUG_, m, x)
- switch (format) {
- case F_CYLINDER:
- if (G.cylindersize) {
- out_rounddown(6, start, G.cylindersize, increment);
- out_roundup(6, end, G.cylindersize, increment);
- out_roundup_size(6, size, G.cylindersize);
- out_rounddown(9, size, 2, 0);
- break;
- }
- /* fall through */
- default:
- case F_SECTOR:
- out_rounddown(9, start, 1, increment);
- out_roundup(9, end, 1, increment);
- out_rounddown(10, size, 1, 0);
- break;
- case F_BLOCK:
-#if 0
- printf("%8lu,%3lu ",
- p->sector / 2, ((p->sector & 1) ? 512 : 0) + p->offset);
-#endif
- out_rounddown(8, start, 2, increment);
- out_roundup(8, end, 2, increment);
- out_rounddown(9, size, 2, 0);
- break;
- case F_MEGABYTE:
- out_rounddown(5, start, 2048, increment);
- out_roundup(5, end, 2048, increment);
- out_roundup_size(5, size, 2048);
- out_rounddown(9, size, 2, 0);
- break;
- }
- if (p->ptype == DOS_TYPE) {
- printf(" %2x %s\n", p->p.sys_type, sysname(p->p.sys_type));
- } else {
- printf("\n");
- }
- /* Is chs as we expect? */
- if (!quiet && p->ptype == DOS_TYPE) {
- chs a, b;
- longchs aa, bb;
- a = (size ? ulong_to_chs(start, G) : zero_chs);
- b = p->p.begin_chs;
- aa = chs_to_longchs(a);
- bb = chs_to_longchs(b);
- if (a.s && !is_equal_chs(a, b))
- printf(_("\t\tstart: (c,h,s) expected (%ld,%ld,%ld) found (%ld,%ld,%ld)\n"),
- aa.c, aa.h, aa.s, bb.c, bb.h, bb.s);
- a = (size ? ulong_to_chs(end, G) : zero_chs);
- b = p->p.end_chs;
- aa = chs_to_longchs(a);
- bb = chs_to_longchs(b);
- if (a.s && !is_equal_chs(a, b))
- printf(_("\t\tend: (c,h,s) expected (%ld,%ld,%ld) found (%ld,%ld,%ld)\n"),
- aa.c, aa.h, aa.s, bb.c, bb.h, bb.s);
- if (G.cylinders && G.cylinders < 1024 && bb.c > G.cylinders)
- printf(_("partition ends on cylinder %ld, beyond the end of the disk\n"),
- bb.c);
- }
+static void sfdiskprog_init_debug(void)
+{
+ __UL_INIT_DEBUG(sfdisk, SFDISKPROG_DEBUG_, 0, SFDISK_DEBUG);
}
-static void
-out_partitions(char *dev, struct disk_desc *z) {
- int pno, format = 0;
-
- if (z->partno == 0) {
- if (!opt_list)
- warnx(_("No partitions found"));
- } else {
- if (get_fdisk_geometry(z) && !dump) {
- warnx(_("Warning: The partition table looks like it was made\n"
- " for C/H/S=*/%ld/%ld (instead of %ld/%ld/%ld).\n"
- "For this listing I'll assume that geometry."),
- F.heads, F.sectors, B.cylinders, B.heads, B.sectors);
- }
-
- out_partition_header(dev, format, F);
- for (pno = 0; pno < z->partno; pno++) {
- out_partition(dev, format, &(z->partitions[pno]), z, F);
- if (show_extended && pno % 4 == 3)
- printf("\n");
- }
- }
-}
+static void __attribute__ ((__noreturn__)) usage(FILE *out)
+{
+ fputs(USAGE_HEADER, out);
-static int
-disj(struct part_desc *p, struct part_desc *q) {
- return ((p->start + p->size <= q->start)
- || (is_extended(p->p.sys_type)
- && q->start + q->size <= p->start + p->size));
-}
+ fprintf(out,
+ _(" %1$s [options] <disk>\n"), program_invocation_short_name);
-static char *
-pnumber(struct part_desc *p, struct disk_desc *z) {
- static char buf[20];
- int this, next;
- struct part_desc *p0 = &(z->partitions[0]);
+ fputs(USAGE_OPTIONS, out);
- this = index_to_linux(p - p0, z);
- next = index_to_linux(p - p0 + 1, z);
+ fputs(USAGE_SEPARATOR, out);
+ fputs(USAGE_HELP, out);
+ fputs(USAGE_VERSION, out);
- if (next > this)
- sprintf(buf, "%d", this);
- else
- sprintf(buf, "[%d]", this);
- return buf;
+ fprintf(out, USAGE_MAN_TAIL("sfdisk(8)"));
+ exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
}
-static int
-partitions_ok(int fd, struct disk_desc *z) {
- struct part_desc *partitions = &(z->partitions[0]), *p, *q;
- int partno = z->partno;
- int sector_size;
-
-#define PNO(p) pnumber(p, z)
-
- /* Have at least 4 partitions been defined? */
- if (partno < 4) {
- if (!partno)
- errx(EXIT_FAILURE, _("no partition table present"));
- else
- errx(EXIT_FAILURE, P_("strange, only %d partition defined",
- "strange, only %d partitions defined", partno), partno);
- return 0;
- }
-
- /* Are the partitions of size 0 marked empty?
- And do they have start = 0? And bootable = 0? */
- for (p = partitions; p - partitions < partno; p++)
- if (p->size == 0) {
- if (p->p.sys_type != EMPTY_PARTITION)
- warnx(_("Warning: partition %s has size 0 but is not marked Empty"),
- PNO(p));
- else if (p->p.bootable != 0)
- warnx(_("Warning: partition %s has size 0 and is bootable"),
- PNO(p));
- else if (p->p.start_sect != 0)
- warnx(_("Warning: partition %s has size 0 and nonzero start"),
- PNO(p));
- /* all this is probably harmless, no error return */
- }
-
- /* Are the logical partitions contained in their extended partitions? */
- for (p = partitions + 4; p < partitions + partno; p++)
- if (p->ptype == DOS_TYPE)
- if (p->size && !is_extended(p->p.sys_type)) {
- q = p->ep;
- if (p->start < q->start
- || p->start + p->size > q->start + q->size) {
- warnx(_("Warning: partition %s is not contained in "
- "partition %s"), PNO(p), PNO(q));
- return 0;
- }
- }
-
- /* Are the data partitions mutually disjoint? */
- for (p = partitions; p < partitions + partno; p++)
- if (p->size && !is_extended(p->p.sys_type))
- for (q = p + 1; q < partitions + partno; q++)
- if (q->size && !is_extended(q->p.sys_type))
- if (!((p->start > q->start) ? disj(q, p) : disj(p, q))) {
- warnx(_("Warning: partitions %s and %s overlap"),
- PNO(p), PNO(q));
- return 0;
- }
-
- /* Are the data partitions and the extended partition
- table sectors disjoint? */
- for (p = partitions; p < partitions + partno; p++)
- if (p->size && !is_extended(p->p.sys_type))
- for (q = partitions; q < partitions + partno; q++)
- if (is_extended(q->p.sys_type))
- if (p->start <= q->start && p->start + p->size > q->start) {
- warnx(_("Warning: partition %s contains part of "
- "the partition table (sector %llu),\n"
- "and will destroy it when filled"),
- PNO(p), q->start);
- return 0;
- }
-
- /* Do they start past zero and end before end-of-disk? */
- {
- unsigned long long ds = get_disksize(F_SECTOR);
- for (p = partitions; p < partitions + partno; p++)
- if (p->size) {
- if (p->start == 0) {
- warnx(_("Warning: partition %s starts at sector 0"),
- PNO(p));
- return 0;
- }
- if (p->size && p->start + p->size > ds) {
- warnx(_("Warning: partition %s extends past end of disk"),
- PNO(p));
- return 0;
- }
- }
- }
-
- if (blkdev_get_sector_size(fd, §or_size) == -1)
- sector_size = DEFAULT_SECTOR_SIZE;
-
- /* Is the size of partitions less than 2^32 sectors limit? */
- for (p = partitions; p < partitions + partno; p++)
- if (p->size > UINT_MAX) {
- unsigned long long bytes = p->size * sector_size;
- int giga = bytes / 1000000000;
- int hectogiga = (giga + 50) / 100;
- warnx(_("Warning: partition %s has size %d.%d TB (%llu bytes),\n"
- "which is larger than the %llu bytes limit imposed\n"
- "by the DOS partition table for %d-byte sectors"),
- PNO(p), hectogiga / 10, hectogiga % 10,
- bytes,
- (unsigned long long) UINT_MAX * sector_size,
- sector_size);
- return 0;
- }
-
- /* Do the partitions start below the 2^32 sectors limit? */
- for (p = partitions; p < partitions + partno; p++)
- if (p->start > UINT_MAX) {
- unsigned long long bytes = p->start * sector_size;
- int giga = bytes / 1000000000;
- int hectogiga = (giga + 50) / 100;
- warnx(_("Warning: partition %s starts at sector %llu (%d.%d TB for %d-byte sectors),\n"
- "which exceeds the DOS partition table limit of %llu sectors"),
- PNO(p),
- p->start,
- hectogiga / 10,
- hectogiga % 10,
- sector_size,
- (unsigned long long) UINT_MAX);
- return 0;
- }
-
- /* At most one chain of DOS extended partitions ? */
- /* It seems that the OS/2 fdisk has the additional requirement
- that the extended partition must be the fourth one */
- {
- int ect = 0;
- for (p = partitions; p < partitions + 4; p++)
- if (p->p.sys_type == EXTENDED_PARTITION)
- ect++;
- if (ect > 1 && !Linux) {
- warnx(_("Among the primary partitions, at most one can be extended\n"
- " (although this is not a problem under Linux)"));
- return 0;
- }
- }
-
- /*
- * Do all partitions start at a cylinder boundary ?
- * (this is not required for Linux)
- * The first partition starts after MBR.
- * Logical partitions start slightly after the containing extended partn.
- */
- if (B.cylindersize && !Linux) {
- for (p = partitions; p < partitions + partno; p++)
- if (p->size) {
- if (p->start % B.cylindersize != 0
- && (!p->ep
- || p->start / B.cylindersize !=
- p->ep->start / B.cylindersize)
- && (p->p.start_sect >= B.cylindersize)) {
- warnx(_("Warning: partition %s does not start "
- "at a cylinder boundary"), PNO(p));
- if (specified_format == F_CYLINDER)
- return 0;
- }
- if ((p->start + p->size) % B.cylindersize) {
- warnx(_("Warning: partition %s does not end "
- "at a cylinder boundary"), PNO(p));
- if (specified_format == F_CYLINDER)
- return 0;
- }
- }
- }
-
- /* Usually, one can boot only from primary partitions. */
- /* In fact, from a unique one only. */
- /* do not warn about bootable extended partitions -
- often LILO is there */
- {
- int pno = -1;
- for (p = partitions; p < partitions + partno; p++)
- if (p->p.bootable) {
- if (pno == -1)
- pno = p - partitions;
- else if (p - partitions < 4) {
- warnx(_("Warning: more than one primary partition is marked "
- "bootable (active)\n"
- "This does not matter for LILO, but the DOS MBR will "
- "not boot this disk."));
- break;
- }
- if (p - partitions >= 4) {
- warnx(_("Warning: usually one can boot from primary partitions "
- "only\nLILO disregards the `bootable' flag."));
- break;
+int main(int argc, char *argv[])
+{
+ struct fdisk_context *cxt; /* libfdisk stuff */
+ const char *diskpath;
+ int rc, c;
+
+ static const struct option longopts[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'v' },
+ { NULL, 0, 0, 0 },
+ };
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+ atexit(close_stdout);
+
+ while((c = getopt_long(argc, argv, "hv", longopts, NULL)) != -1) {
+ switch(c) {
+ case 'h':
+ usage(stdout);
+ break;
+ case 'v':
+ printf(_("%s from %s\n"), program_invocation_short_name,
+ PACKAGE_STRING);
+ return EXIT_SUCCESS;
}
- }
- if (pno == -1 || pno >= 4)
- warnx(_("Warning: no primary partition is marked bootable (active)\n"
- "This does not matter for LILO, but the DOS MBR will "
- "not boot this disk."));
- }
-
- /* Is chs as we expect? */
- for (p = partitions; p < partitions + partno; p++)
- if (p->ptype == DOS_TYPE) {
- chs a, b;
- longchs aa, bb;
- a = p->size ? ulong_to_chs(p->start, B) : zero_chs;
- b = p->p.begin_chs;
- aa = chs_to_longchs(a);
- bb = chs_to_longchs(b);
- if (!Linux && !chs_ok(b, PNO(p), _("start")))
- return 0;
- if (a.s && !is_equal_chs(a, b))
- warnx(_("partition %s: start: (c,h,s) expected (%ld,%ld,%ld) found (%ld,%ld,%ld)"),
- PNO(p), aa.c, aa.h, aa.s, bb.c, bb.h, bb.s);
- a = p->size ? ulong_to_chs(p->start + p->size - 1, B) : zero_chs;
- b = p->p.end_chs;
- aa = chs_to_longchs(a);
- bb = chs_to_longchs(b);
- if (!Linux && !chs_ok(b, PNO(p), _("end")))
- return 0;
- if (a.s && !is_equal_chs(a, b))
- warnx(_("partition %s: end: (c,h,s) expected (%ld,%ld,%ld) found (%ld,%ld,%ld)"),
- PNO(p), aa.c, aa.h, aa.s, bb.c, bb.h, bb.s);
- if (B.cylinders && B.cylinders < 1024 && bb.c > B.cylinders)
- warnx(_("partition %s ends on cylinder %ld, beyond the end of the disk"),
- PNO(p), bb.c);
}
- return 1;
-
-#undef PNO
-}
-
-static void
-extended_partition(char *dev, int fd, struct part_desc *ep, struct disk_desc *z) {
- char *cp;
- struct sector *s;
- unsigned long long start, here, next;
- int i, moretodo = 1;
- struct partition p;
- struct part_desc *partitions = &(z->partitions[0]);
- size_t pno = z->partno;
-
- here = start = ep->start;
-
- if (B.cylindersize && start % B.cylindersize) {
- /* This is BAD */
- if (DOS_extended) {
- here = start -= (start % B.cylindersize);
- warnx(_("Warning: shifted start of the extd partition "
- "from %lld to %lld\n"
- "(For listing purposes only. "
- "Do not change its contents.)"), ep->start, start);
- } else if (!Linux) {
- warnx(_("Warning: extended partition does not start at a "
- "cylinder boundary.\n"
- "DOS and Linux will interpret the contents differently."));
- }
- }
+ fdisk_init_debug(0);
+ sfdiskprog_init_debug();
- while (moretodo) {
- moretodo = 0;
+ if (argc - optind != 1)
+ usage(stderr);
- if (!(s = get_sector(dev, fd, here)))
- break;
+ diskpath = argv[optind];
- if (!msdos_signature(s)) {
- warnx(_("ERROR: sector %llu does not have an msdos signature"),
- s->sectornumber);
- break;
- }
- cp = s->data + 0x1be;
+ cxt = fdisk_new_context();
+ if (!cxt)
+ err(EXIT_FAILURE, _("failed to allocate libfdisk context"));
- if (pno + 4 >= ARRAY_SIZE(z->partitions)) {
- warnx(_("too many partitions - ignoring those past nr (%zu)"),
- pno - 1);
- break;
- }
+ rc = fdisk_assign_device(cxt, diskpath, 0);
+ if (rc != 0)
+ err(EXIT_FAILURE, _("cannot open %s"), diskpath);
- next = 0;
+ rc = fdisk_deassign_device(cxt, 0);
+ fdisk_unref_context(cxt);
- for (i = 0; i < 4; i++, cp += sizeof(struct partition)) {
- partitions[pno].sector = here;
- partitions[pno].offset = cp - s->data;
- partitions[pno].ep = ep;
- copy_to_part(cp, &p);
- if (is_extended(p.sys_type)) {
- partitions[pno].start = start + p.start_sect;
- if (next)
- warnx(_("tree of partitions?"));
- else
- next = partitions[pno].start; /* follow `upper' branch */
- moretodo = 1;
- } else {
- partitions[pno].start = here + p.start_sect;
- }
- partitions[pno].size = p.nr_sects;
- partitions[pno].ptype = DOS_TYPE;
- partitions[pno].p = p;
- pno++;
- }
- here = next;
- }
-
- z->partno = pno;
-}
-
-#define BSD_DISKMAGIC (0x82564557UL)
-#define BSD_MAXPARTITIONS 16
-#define BSD_FS_UNUSED 0
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-struct bsd_disklabel {
- u32 d_magic;
- char d_junk1[4];
- char d_typename[16];
- char d_packname[16];
- char d_junk2[92];
- u32 d_magic2;
- char d_junk3[2];
- u16 d_npartitions; /* number of partitions in following */
- char d_junk4[8];
- struct bsd_partition { /* the partition table */
- u32 p_size; /* number of sectors in partition */
- u32 p_offset; /* starting sector */
- u32 p_fsize; /* filesystem basic fragment size */
- u8 p_fstype; /* filesystem type, see below */
- u8 p_frag; /* filesystem fragments per block */
- u16 p_cpg; /* filesystem cylinders per group */
- } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */
-};
-
-static void
-bsd_partition(char *dev, int fd, struct part_desc *ep, struct disk_desc *z) {
- struct bsd_disklabel *l;
- struct bsd_partition *bp, *bp0;
- unsigned long long start = ep->start;
- struct sector *s;
- struct part_desc *partitions = &(z->partitions[0]);
- size_t pno = z->partno;
-
- if (!(s = get_sector(dev, fd, start + 1)))
- return;
- l = (struct bsd_disklabel *)(s->data);
- if (l->d_magic != BSD_DISKMAGIC || l->d_magic2 != BSD_DISKMAGIC)
- return;
-
- bp = bp0 = &l->d_partitions[0];
- while (bp - bp0 < BSD_MAXPARTITIONS && bp - bp0 < l->d_npartitions) {
- if (pno + 1 >= ARRAY_SIZE(z->partitions)) {
- warnx(_("too many partitions - ignoring those "
- "past nr (%zu)"), pno - 1);
- break;
- }
- if (bp->p_fstype != BSD_FS_UNUSED) {
- partitions[pno].start = bp->p_offset;
- partitions[pno].size = bp->p_size;
- partitions[pno].sector = start + 1;
- partitions[pno].offset = (char *)bp - (char *)bp0;
- partitions[pno].ep = 0;
- partitions[pno].ptype = BSD_TYPE;
- pno++;
- }
- bp++;
- }
- z->partno = pno;
-}
-
-static int
-msdos_partition(char *dev, int fd, unsigned long start, struct disk_desc *z) {
- int i;
- char *cp;
- struct partition pt;
- struct sector *s;
- struct part_desc *partitions = &(z->partitions[0]);
- int pno;
- int bsd_later = 1;
- unsigned short sig, magic;
-#ifdef __linux__
- bsd_later = (get_linux_version() >= KERNEL_VERSION(2, 3, 40));
-#endif
-
- if (!(s = get_sector(dev, fd, start)))
- return 0;
-
- if (!msdos_signature(s))
- return 0;
-
- cp = s->data + 0x1be;
- copy_to_part(cp, &pt);
-
- /* If I am not mistaken, recent kernels will hide this from us,
- so we will never actually see traces of a Disk Manager */
- if (pt.sys_type == DM6_PARTITION
- || pt.sys_type == EZD_PARTITION
- || pt.sys_type == DM6_AUX1PARTITION
- || pt.sys_type == DM6_AUX3PARTITION) {
- warnx(_("detected Disk Manager - unable to handle that"));
- return 0;
- }
-
- memcpy(&sig, s->data + 2, sizeof(sig));
- if (sig <= 0x1ae) {
- memcpy(&magic, s->data + sig, sizeof(magic));
- if (magic == 0x55aa && (1 & *(unsigned char *)(s->data + sig + 2))) {
- warnx(_("DM6 signature found - giving up"));
- return 0;
- }
- }
-
- for (pno = 0; pno < 4; pno++, cp += sizeof(struct partition)) {
- partitions[pno].sector = start;
- partitions[pno].offset = cp - s->data;
- copy_to_part(cp, &pt);
- partitions[pno].start = start + pt.start_sect;
- partitions[pno].size = pt.nr_sects;
- partitions[pno].ep = 0;
- partitions[pno].p = pt;
- }
-
- z->partno = pno;
-
- for (i = 0; i < 4; i++) {
- if (is_extended(partitions[i].p.sys_type)) {
- if (!partitions[i].size) {
- warnx(_("strange..., an extended partition of size 0?"));
- continue;
- }
- extended_partition(dev, fd, &partitions[i], z);
- }
- if (!bsd_later && is_bsd(partitions[i].p.sys_type)) {
- if (!partitions[i].size) {
- warnx(_("strange..., a BSD partition of size 0?"));
- continue;
- }
- bsd_partition(dev, fd, &partitions[i], z);
- }
- }
-
- if (bsd_later) {
- for (i = 0; i < 4; i++) {
- if (is_bsd(partitions[i].p.sys_type)) {
- if (!partitions[i].size) {
- warnx(_("strange..., a BSD partition of size 0?"));
- continue;
- }
- bsd_partition(dev, fd, &partitions[i], z);
- }
- }
- }
-
- return 1;
-}
-
-static int
-osf_partition(char *dev __attribute__ ((__unused__)),
- int fd __attribute__ ((__unused__)),
- unsigned long start __attribute__ ((__unused__)),
- struct disk_desc *z __attribute__ ((__unused__))) {
- return 0;
-}
-
-static int
-sun_partition(char *dev __attribute__ ((__unused__)),
- int fd __attribute__ ((__unused__)),
- unsigned long start __attribute__ ((__unused__)),
- struct disk_desc *z __attribute__ ((__unused__))) {
- return 0;
-}
-
-static int
-amiga_partition(char *dev __attribute__ ((__unused__)),
- int fd __attribute__ ((__unused__)),
- unsigned long start __attribute__ ((__unused__)),
- struct disk_desc *z __attribute__ ((__unused__))) {
- return 0;
-}
-
-static void
-get_partitions(char *dev, int fd, struct disk_desc *z) {
- z->partno = 0;
-
- if (!msdos_partition(dev, fd, 0, z)
- && !osf_partition(dev, fd, 0, z)
- && !sun_partition(dev, fd, 0, z)
- && !amiga_partition(dev, fd, 0, z)) {
- if (!opt_list)
- warnx(_(" %s: unrecognized partition table type"), dev);
- return;
- }
-}
-
-static int
-write_partitions(char *dev, int fd, struct disk_desc *z) {
- struct sector *s;
- struct part_desc *partitions = &(z->partitions[0]), *p;
- int pno = z->partno;
-
- if (no_write) {
- warnx(_("-n flag was given: Nothing changed"));
- exit(EXIT_SUCCESS);
- }
-
- for (p = partitions; p < partitions + pno; p++) {
- s = get_sector(dev, fd, p->sector);
- if (!s)
- return 0;
- s->to_be_written = 1;
- if (p->ptype == DOS_TYPE) {
- copy_from_part(&(p->p), s->data + p->offset);
- s->data[510] = 0x55;
- s->data[511] = (unsigned char)0xaa;
- }
- }
- if (save_sector_file) {
- if (!save_sectors(dev, fd)) {
- errx(EXIT_FAILURE, _("Failed saving the old sectors - aborting\n"));
- return 0;
- }
- }
- if (!write_sectors(dev, fd)) {
- warnx(_("Failed writing the partition on %s"), dev);
- return 0;
- }
- if (fsync(fd)) {
- warn(_("Failed writing the partition on %s"), dev);
- return 0;
- }
- return 1;
-}
-
-/*
- * F. The standard input
- */
-
-/*
- * Input format:
- * <start> <size> <type> <bootable> <c,h,s> <c,h,s>
- * Fields are separated by whitespace or comma or semicolon possibly
- * followed by whitespace; initial and trailing whitespace is ignored.
- * Numbers can be octal, decimal or hexadecimal, decimal is default
- * The <c,h,s> parts can (and probably should) be omitted.
- * Bootable is specified as [*|-], with as default not-bootable.
- * Type is given in hex, without the 0x prefix, or is [E|S|L|X], where
- * L (LINUX_NATIVE (83)) is the default, S is LINUX_SWAP (82), and E
- * is EXTENDED_PARTITION (5), X is LINUX_EXTENDED (85).
- * The default value of start is the first nonassigned sector/cylinder/...
- * The default value of size is as much as possible (until next
- * partition or end-of-disk).
- * .: end of chain of extended partitions.
- *
- * On interactive input an empty line means: all defaults.
- * Otherwise empty lines are ignored.
- */
-
-int eof, eob;
-
-struct dumpfld {
- int fldno;
- char *fldname;
- int is_bool;
-} dumpflds[] = {
- {
- 0, "start", 0}, {
- 1, "size", 0}, {
- 2, "Id", 0}, {
- 3, "bootable", 1}, {
- 4, "bh", 0}, {
- 5, "bs", 0}, {
- 6, "bc", 0}, {
- 7, "eh", 0}, {
- 8, "es", 0}, {
- 9, "ec", 0}
-};
-
-/*
- * Read a line, split it into fields
- *
- * (some primitive handwork, but a more elaborate parser seems
- * unnecessary)
- */
-#define RD_EOF (-1)
-#define RD_CMD (-2)
-
-static int
-read_stdin(char **fields, char *line, int fieldssize, int linesize) {
- char *lp, *ip;
- int c, fno;
-
- /* boolean true and empty string at start */
- line[0] = '*';
- line[1] = 0;
- for (fno = 0; fno < fieldssize; fno++)
- fields[fno] = line + 1;
- fno = 0;
-
- /* read a line from stdin */
- lp = fgets(line + 2, linesize - 2, stdin);
- if (lp == NULL) {
- eof = 1;
- return RD_EOF;
- }
- if (!(lp = strchr(lp, '\n')))
- errx(EXIT_FAILURE, _("long or incomplete input line - quitting"));
- *lp = 0;
-
- /* remove comments, if any */
- if ((lp = strchr(line + 2, '#')) != 0)
- *lp = 0;
-
- /* recognize a few commands - to be expanded */
- if (!strcmp(line + 2, "unit: sectors")) {
- specified_format = F_SECTOR;
- return RD_CMD;
- }
-
- /* dump style? - then bad input is fatal */
- if ((ip = strchr(line + 2, ':')) != 0) {
- struct dumpfld *d;
-
- nxtfld:
- ip++;
- while (isspace(*ip))
- ip++;
- if (*ip == 0)
- return fno;
- for (d = dumpflds; (size_t) (d - dumpflds) < ARRAY_SIZE(dumpflds); d++) {
- if (!strncmp(ip, d->fldname, strlen(d->fldname))) {
- ip += strlen(d->fldname);
- while (isspace(*ip))
- ip++;
- if (d->is_bool)
- fields[d->fldno] = line;
- else if (*ip == '=') {
- while (isspace(*++ip)) ;
- fields[d->fldno] = ip;
- while (isalnum(*ip)) /* 0x07FF */
- ip++;
- } else
- errx(EXIT_FAILURE, _("input error: `=' expected after %s field"),
- d->fldname);
- if (fno <= d->fldno)
- fno = d->fldno + 1;
- if (*ip == 0)
- return fno;
- if (*ip != ',' && *ip != ';')
- errx(EXIT_FAILURE, _("input error: unexpected character %c after %s field"),
- *ip, d->fldname);
- *ip = 0;
- goto nxtfld;
- }
- }
- errx(EXIT_FAILURE, _("unrecognized input: %s"), ip);
- }
-
- /* split line into fields */
- lp = ip = line + 2;
- fields[fno++] = lp;
- while ((c = *ip++) != 0) {
- if (!lp[-1] && (c == '\t' || c == ' ')) ;
- else if (c == '\t' || c == ' ' || c == ',' || c == ';') {
- *lp++ = 0;
- if (fno < fieldssize)
- fields[fno++] = lp;
- continue;
- } else
- *lp++ = c;
- }
-
- if (lp == fields[fno - 1])
- fno--;
- return fno;
-}
-
-/* read a number, use default if absent */
-/* a sign gives an offset from the default */
-static int
-get_ul(char *u, unsigned long *up, unsigned long def, int base) {
- char *nu;
- int sign = 0;
- unsigned long val;
-
- if (*u == '+') {
- sign = 1;
- u++;
- } else if (*u == '-') {
- sign = -1;
- u++;
- }
- if (*u) {
- errno = 0;
- val = strtoul(u, &nu, base);
- if (errno == ERANGE) {
- warnx(_("number too big"));
- return -1;
- }
- if (*nu) {
- warnx(_("trailing junk after number"));
- return -1;
- }
- if (sign == 1)
- val = def + val;
- else if (sign == -1)
- val = def - val;
- *up = val;
- } else
- *up = def;
- return 0;
-}
-
-
-/* read a number, use default if absent */
-/* a sign gives an offset from the default */
-static int
-get_ull(char *u, unsigned long long *up, unsigned long long def, int base) {
- char *nu;
- int sign = 0;
- unsigned long long val;
-
- if (*u == '+') {
- sign = 1;
- u++;
- } else if (*u == '-') {
- sign = -1;
- u++;
- }
- if (*u) {
- errno = 0;
- val = strtoull(u, &nu, base);
- if (errno == ERANGE) {
- warnx(_("number too big"));
- return -1;
- }
- if (*nu) {
- warnx(_("trailing junk after number"));
- return -1;
- }
- if (sign == 1)
- val = def + val;
- else if (sign == -1)
- val = def - val;
- *up = val;
- } else
- *up = def;
- return 0;
-}
-
-
-/* There are two common ways to structure extended partitions:
- as nested boxes, and as a chain. Sometimes the partitions
- must be given in order. Sometimes all logical partitions
- must lie inside the outermost extended partition.
-NESTED: every partition is contained in the surrounding partitions
- and is disjoint from all others.
-CHAINED: every data partition is contained in the surrounding partitions
- and disjoint from all others, but extended partitions may lie outside
- (insofar as allowed by all_logicals_inside_outermost_extended).
-ONESECTOR: all data partitions are mutually disjoint; extended partitions
- each use one sector only (except perhaps for the outermost one).
-*/
-int partitions_in_order = 0;
-int all_logicals_inside_outermost_extended = 1;
-enum { NESTED, CHAINED, ONESECTOR } boxes = NESTED;
-
-/* find the default value for <start> - assuming entire units */
-static unsigned long long
-first_free(int pno, int is_extended, struct part_desc *ep, int format,
- unsigned long long mid, struct disk_desc *z) {
- unsigned long long ff, fff;
- unsigned long unit = unitsize(format);
- struct part_desc *partitions = &(z->partitions[0]), *pp = 0;
-
- /* if containing ep undefined, look at its container */
- if (ep && ep->p.sys_type == EMPTY_PARTITION)
- ep = ep->ep;
-
- if (ep) {
- if (boxes == NESTED || (boxes == CHAINED && !is_extended))
- pp = ep;
- else if (all_logicals_inside_outermost_extended)
- pp = outer_extended_partition(ep);
- }
-#if 0
- ff = pp ? (pp->start + unit - 1) / unit : 0;
-#else
- /* rounding up wastes almost an entire cylinder - round down
- and leave it to compute_start_sect() to fix the difference */
- ff = pp ? pp->start / unit : 0;
-#endif
- /* MBR and 1st sector of an extended partition are never free */
- if (unit == 1)
- ff++;
-
- again:
- for (pp = partitions; pp < partitions + pno; pp++) {
- if (!is_parent(pp, ep) && pp->size > 0) {
- if ((partitions_in_order || pp->start / unit <= ff
- || (mid && pp->start / unit <= mid))
- && (fff = (pp->start + pp->size + unit - 1) / unit) > ff) {
- ff = fff;
- goto again;
- }
- }
- }
-
- return ff;
-}
-
-/* find the default value for <size> - assuming entire units */
-static unsigned long long
-max_length(int pno, int is_extended, struct part_desc *ep, int format,
- unsigned long long start, struct disk_desc *z) {
- unsigned long long fu;
- unsigned long unit = unitsize(format);
- struct part_desc *partitions = &(z->partitions[0]), *pp = 0;
-
- /* if containing ep undefined, look at its container */
- if (ep && ep->p.sys_type == EMPTY_PARTITION)
- ep = ep->ep;
-
- if (ep) {
- if (boxes == NESTED || (boxes == CHAINED && !is_extended))
- pp = ep;
- else if (all_logicals_inside_outermost_extended)
- pp = outer_extended_partition(ep);
- }
- fu = pp ? (pp->start + pp->size) / unit : get_disksize(format);
-
- for (pp = partitions; pp < partitions + pno; pp++)
- if (!is_parent(pp, ep) && pp->size > 0
- && pp->start / unit >= start && pp->start / unit < fu)
- fu = pp->start / unit;
-
- return (fu > start) ? fu - start : 0;
-}
-
-/* compute starting sector of a partition inside an extended one */
-/* return 0 on failure */
-/* ep is 0 or points to surrounding extended partition */
-static int
-compute_start_sect(struct part_desc *p, struct part_desc *ep) {
- unsigned long long base;
- int inc = (DOS && B.sectors) ? B.sectors : 1;
- long long delta;
-
- if (ep && p->start + p->size >= ep->start + 1)
- delta = p->start - ep->start - inc;
- else if (p->start == 0 && p->size > 0)
- delta = -inc;
- else
- delta = 0;
-
- if (delta < 0) {
- unsigned long long old_size = p->size;
- p->start -= delta;
- p->size += delta;
- if (is_extended(p->p.sys_type) && boxes == ONESECTOR)
- p->size = inc;
- else if ((long long) old_size <= -delta) {
- warnx(_("no room for partition descriptor"));
- return 0;
- }
- }
- base = (!ep ? 0
- : (is_extended(p->p.sys_type) ?
- outer_extended_partition(ep) : ep)->start);
- p->ep = ep;
- if (p->p.sys_type == EMPTY_PARTITION && p->size == 0) {
- p->p.start_sect = 0;
- p->p.begin_chs = zero_chs;
- p->p.end_chs = zero_chs;
- } else {
- p->p.start_sect = p->start - base;
- p->p.begin_chs = ulong_to_chs(p->start, B);
- p->p.end_chs = ulong_to_chs(p->start + p->size - 1, B);
- }
- p->p.nr_sects = p->size;
- return 1;
-}
-
-/* build the extended partition surrounding a given logical partition */
-static int
-build_surrounding_extended(struct part_desc *p, struct part_desc *ep,
- struct disk_desc *z) {
- int inc = (DOS && B.sectors) ? B.sectors : 1;
- int format = F_SECTOR;
- struct part_desc *p0 = &(z->partitions[0]), *eep = ep->ep;
-
- if (boxes == NESTED) {
- ep->start = first_free(ep - p0, 1, eep, format, p->start, z);
- ep->size = max_length(ep - p0, 1, eep, format, ep->start, z);
- if (ep->start > p->start || ep->start + ep->size < p->start + p->size) {
- warnx(_("cannot build surrounding extended partition"));
- return 0;
- }
- } else {
- ep->start = p->start;
- if (boxes == CHAINED)
- ep->size = p->size;
- else
- ep->size = inc;
- }
-
- ep->p.nr_sects = ep->size;
- ep->p.bootable = 0;
- ep->p.sys_type = EXTENDED_PARTITION;
- if (!compute_start_sect(ep, eep) || !compute_start_sect(p, ep)) {
- ep->p.sys_type = EMPTY_PARTITION;
- ep->size = 0;
- return 0;
- }
-
- return 1;
-}
-
-static int
-read_line(int pno, struct part_desc *ep, char *dev, int interactive,
- struct disk_desc *z) {
- char line[1000];
- char *fields[11];
- int fno, pct = pno % 4;
- struct part_desc p, *orig;
- unsigned long long ff, ff1, ul, ml, ml1, def;
- int format, lpno, is_extd;
-
- if (eof || eob)
- return -1;
-
- lpno = index_to_linux(pno, z);
-
- if (interactive) {
- if (pct == 0 && (show_extended || pno == 0))
- putchar('\n');
- warnx("%s:", partname(dev, lpno, 10));
- }
-
- /* read input line - skip blank lines when reading from a file */
- do {
- fno = read_stdin(fields, line, ARRAY_SIZE(fields), ARRAY_SIZE(line));
- } while (fno == RD_CMD || (fno == 0 && !interactive));
- if (fno == RD_EOF) {
- return -1;
- } else if (fno > 10 && *(fields[10]) != 0) {
- warnx(_("too many input fields"));
- return 0;
- }
-
- if (fno == 1 && !strcmp(fields[0], ".")) {
- eob = 1;
- return -1;
- }
-
- /* use specified format, but round to cylinders if F_MEGABYTE specified */
- format = 0;
- if (B.cylindersize && specified_format == F_MEGABYTE && !Linux)
- format = F_CYLINDER;
-
- orig = (one_only ? &(oldp.partitions[pno]) : 0);
-
- p = zero_part_desc;
- p.ep = ep;
-
- /* first read the type - we need to know whether it is extended */
- /* stop reading when input blank (defaults) and all is full */
- is_extd = 0;
- if (fno == 0) { /* empty line */
- if (orig && is_extended(orig->p.sys_type))
- is_extd = 1;
- ff = first_free(pno, is_extd, ep, format, 0, z);
- ml = max_length(pno, is_extd, ep, format, ff, z);
- if (ml == 0 && is_extd == 0) {
- is_extd = 1;
- ff = first_free(pno, is_extd, ep, format, 0, z);
- ml = max_length(pno, is_extd, ep, format, ff, z);
- }
- if (ml == 0 && pno >= 4) {
- /* no free blocks left - don't read any further */
- warnx(_("No room for more"));
- return -1;
- }
- }
- if (fno < 3 || !*(fields[2]))
- ul = orig ? orig->p.sys_type :
- (is_extd || (pno > 3 && pct == 1 && show_extended))
- ? EXTENDED_PARTITION : LINUX_NATIVE;
- else if (!strcmp(fields[2], "L"))
- ul = LINUX_NATIVE;
- else if (!strcmp(fields[2], "S"))
- ul = LINUX_SWAP;
- else if (!strcmp(fields[2], "E"))
- ul = EXTENDED_PARTITION;
- else if (!strcmp(fields[2], "X"))
- ul = LINUX_EXTENDED;
- else if (get_ull(fields[2], &ul, LINUX_NATIVE, 16))
- return 0;
- if (ul > 255) {
- warnx(_("Illegal type"));
- return 0;
- }
- p.p.sys_type = ul;
- is_extd = is_extended(ul);
-
- /* find start */
- ff = first_free(pno, is_extd, ep, format, 0, z);
- ff1 = ff * unitsize(format);
- def = orig ? orig->start : (pno > 4 && pct > 1) ? 0 : ff1;
- if (fno < 1 || !*(fields[0]))
- p.start = def;
- else {
- if (get_ull(fields[0], &ul, def / unitsize(0), 0))
- return 0;
- p.start = ul * unitsize(0);
- p.start -= (p.start % unitsize(format));
- }
-
- /* find length */
- ml = max_length(pno, is_extd, ep, format, p.start / unitsize(format), z);
- ml1 = ml * unitsize(format);
- def = orig ? orig->size : (pno > 4 && pct > 1) ? 0 : ml1;
- if (fno < 2 || !*(fields[1]))
- p.size = def;
- else if (!strcmp(fields[1], "+"))
- p.size = ml1;
- else {
- if (get_ull(fields[1], &ul, def / unitsize(0), 0))
- return 0;
- p.size = ul * unitsize(0) + unitsize(format) - 1;
- p.size -= (p.size % unitsize(format));
- }
- if (p.size > ml1) {
- warnx(_("Warning: given size (%llu) exceeds max allowable size (%llu)"),
- (p.size + unitsize(0) - 1) / unitsize(0), ml1 / unitsize(0));
- if (!force)
- return 0;
- }
- if (p.size == 0 && pno >= 4 && (fno < 2 || !*(fields[1]))) {
- warnx(_("Warning: empty partition"));
- if (!force)
- return 0;
- }
- p.p.nr_sects = p.size;
-
- if (p.size == 0 && !orig) {
- if (fno < 1 || !*(fields[0]))
- p.start = 0;
- if (fno < 3 || !*(fields[2]))
- p.p.sys_type = EMPTY_PARTITION;
- }
-
- if (p.start < ff1 && p.size > 0) {
- warnx(_("Warning: bad partition start (earliest %llu)"),
- (ff1 + unitsize(0) - 1) / unitsize(0));
- if (!force)
- return 0;
- }
-
- if (fno < 4 || !*(fields[3]))
- ul = (orig ? orig->p.bootable : 0);
- else if (!strcmp(fields[3], "-"))
- ul = 0;
- else if (!strcmp(fields[3], "*") || !strcmp(fields[3], "+"))
- ul = 0x80;
- else {
- warnx(_("unrecognized bootable flag - choose - or *"));
- return 0;
- }
- p.p.bootable = ul;
-
- if (ep && ep->p.sys_type == EMPTY_PARTITION) {
- if (!build_surrounding_extended(&p, ep, z))
- return 0;
- } else if (!compute_start_sect(&p, ep))
- return 0;
-
- {
- longchs aa = chs_to_longchs(p.p.begin_chs), bb;
-
- if (fno < 5) {
- bb = aa;
- } else if (fno < 7) {
- warnx(_("partial c,h,s specification?"));
- return 0;
- } else if (get_ul(fields[4], &bb.c, aa.c, 0) ||
- get_ul(fields[5], &bb.h, aa.h, 0) ||
- get_ul(fields[6], &bb.s, aa.s, 0))
- return 0;
- p.p.begin_chs = longchs_to_chs(bb, B);
- }
- {
- longchs aa = chs_to_longchs(p.p.end_chs), bb;
-
- if (fno < 8) {
- bb = aa;
- } else if (fno < 10) {
- warnx(_("partial c,h,s specification?"));
- return 0;
- } else if (get_ul(fields[7], &bb.c, aa.c, 0) ||
- get_ul(fields[8], &bb.h, aa.h, 0) ||
- get_ul(fields[9], &bb.s, aa.s, 0))
- return 0;
- p.p.end_chs = longchs_to_chs(bb, B);
- }
-
- if (pno > 3 && p.size && show_extended && p.p.sys_type != EMPTY_PARTITION
- && (is_extended(p.p.sys_type) != (pct == 1))) {
- warnx(_("Extended partition not where expected"));
- if (!force)
- return 0;
- }
-
- z->partitions[pno] = p;
- if (pno >= z->partno)
- z->partno += 4; /* reqd for out_partition() */
-
- if (interactive)
- out_partition(dev, 0, &(z->partitions[pno]), z, B);
-
- return 1;
-}
-
-/* ep either points to the extended partition to contain this one,
- or to the empty partition that may become extended or is 0 */
-static int
-read_partition(char *dev, int interactive, int pno, struct part_desc *ep,
- struct disk_desc *z) {
- struct part_desc *p = &(z->partitions[pno]);
- int i;
-
- if (one_only) {
- *p = oldp.partitions[pno];
- if (one_only_pno != pno)
- goto ret;
- } else if (!show_extended && pno > 4 && pno % 4)
- goto ret;
-
- while (!(i = read_line(pno, ep, dev, interactive, z)))
- if (!interactive)
- errx(EXIT_FAILURE, _("bad input"));
- if (i < 0) {
- p->ep = ep;
- return 0;
- }
-
- ret:
- p->ep = ep;
- if (pno >= z->partno)
- z->partno += 4;
- return 1;
-}
-
-static void
-read_partition_chain(char *dev, int interactive, struct part_desc *ep,
- struct disk_desc *z) {
- int i;
- size_t base;
-
- eob = 0;
- while (1) {
- base = z->partno;
- if (base + 4 > ARRAY_SIZE(z->partitions)) {
- warnx(_("too many partitions"));
- break;
- }
- for (i = 0; i < 4; i++)
- if (!read_partition(dev, interactive, base + i, ep, z))
- return;
- for (i = 0; i < 4; i++) {
- ep = &(z->partitions[base + i]);
- if (is_extended(ep->p.sys_type) && ep->size)
- break;
- }
- if (i == 4) {
- /* nothing found - maybe an empty partition is going
- to be extended */
- if (one_only || show_extended)
- break;
- ep = &(z->partitions[base + 1]);
- if (ep->size || ep->p.sys_type != EMPTY_PARTITION)
- break;
- }
- }
-}
-
-static void
-read_input(char *dev, int interactive, struct disk_desc *z) {
- size_t i;
- struct part_desc *partitions = &(z->partitions[0]), *ep;
-
- for (i = 0; i < ARRAY_SIZE(z->partitions); i++)
- partitions[i] = zero_part_desc;
- z->partno = 0;
-
- if (interactive)
- warnx(_("Input in the following format; absent fields get a default value.\n"
- "<start> <size> <type [E,S,L,X,hex]> <bootable [-,*]> <c,h,s> <c,h,s>\n"
- "Usually you only need to specify <start> and <size> (and perhaps <type>)."));
- eof = 0;
-
- for (i = 0; i < 4; i++)
- read_partition(dev, interactive, i, 0, z);
- for (i = 0; i < 4; i++) {
- ep = partitions + i;
- if (is_extended(ep->p.sys_type) && ep->size)
- read_partition_chain(dev, interactive, ep, z);
- }
- add_sector_and_offset(z);
-}
-
-/*
- * G. The command line
- */
-static void usage(FILE * out)
-{
- fputs(USAGE_HEADER, out);
- fprintf(out,
- _(" %s [options] <device>...\n"), program_invocation_short_name);
-
- fputs(USAGE_OPTIONS, out);
- fputs(_(" -s, --show-size list size of a partition\n"
- " -c, --id change or print partition Id\n"
- " --change-id change Id\n"
- " --print-id print Id\n"), out);
- fputs(_(" -l, --list list partitions of each device\n"
- " -d, --dump idem, but in a format suitable for later input\n"
- " -i, --increment number cylinders etc. from 1 instead of from 0\n"
- " -u, --unit <letter> units to be used; <letter> can be one of\n"
- " S (sectors), C (cylinders), B (blocks), or M (MB)\n"), out);
- fputs(_(" -1, --one-only reserved option that does nothing currently\n"
- " -T, --list-types list the known partition types\n"
- " -D, --DOS for DOS-compatibility: waste a little space\n"
- " -E, --DOS-extended DOS extended partition compatibility\n"
- " -R, --re-read make the kernel reread the partition table\n"), out);
- fputs(_(" -N <number> change only the partition with this <number>\n"
- " -n do not actually write to disk\n"
- " -O <file> save the sectors that will be overwritten to <file>\n"
- " -I <file> restore sectors from <file>\n"), out);
- fputs(_(" -V, --verify check that the listed partitions are reasonable\n"
- " -v, --version display version information and exit\n"
- " -h, --help display this help text and exit\n"), out);
-
- fputs(_("\nDangerous options:\n"), out);
- fputs(_(" -f, --force disable all consistency checking\n"
- " --no-reread do not check whether the partition is in use\n"
- " -q, --quiet suppress warning messages\n"
- " -L, --Linux do not complain about things irrelevant for Linux\n"), out);
- fputs(_(" -g, --show-geometry print the kernel's idea of the geometry\n"
- " -G, --show-pt-geometry print geometry guessed from the partition table\n"), out);
- fputs(_(" -A, --activate[=<device>] activate the bootable flag\n"
- " -U, --unhide[=<device>] set partition as unhidden\n"
- " -x, --show-extended also list extended partitions in the output,\n"
- " or expect descriptors for them in the input\n"), out);
- fputs(_(" --leave-last do not allocate the last cylinder\n"
- " --IBM same as --leave-last\n"), out);
- fputs(_(" --in-order partitions are in order\n"
- " --not-in-order partitions are not in order\n"
- " --inside-outer all logicals inside outermost extended\n"
- " --not-inside-outer not all logicals inside outermost extended\n"), out);
- fputs(_(" --nested every partition is disjoint from all others\n"
- " --chained like nested, but extended partitions may lie outside\n"
- " --onesector partitions are mutually disjoint\n"), out);
-
- fputs(_("\nOverride the detected geometry using:\n"
- " -C, --cylinders <number> set the number of cylinders to use\n"
- " -H, --heads <number> set the number of heads to use\n"
- " -S, --sectors <number> set the number of sectors to use\n"), out);
-
- fprintf(out, USAGE_MAN_TAIL("sfdisk(8)"));
- exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
-}
-
-static void
-activate_usage(void) {
- char *p;
- if (!strcmp(program_invocation_short_name, "activate"))
- p = " ";
- else
- p = " --activate=";
- fputs(USAGE_HEADER, stderr);
- fputs(USAGE_SEPARATOR, stderr);
- fprintf(stderr, _(" %s%sdevice list active partitions on device\n"),
- program_invocation_short_name, p);
- fprintf(stderr, _(" %s%sdevice n1 n2 ... activate partitions n1 ..., inactivate the rest\n"),
- program_invocation_short_name, p);
- fprintf(stderr, USAGE_MAN_TAIL("sfdisk(8)"));
- exit(EXIT_FAILURE);
-}
-
-static const char short_opts[] = "cdfghilnqsu:vx1A::C:DGH:I:LN:O:RS:TU::V";
-
-#define PRINT_ID 0400
-#define CHANGE_ID 01000
-
-enum {
- OPT_NO_REREAD = CHAR_MAX + 1,
- OPT_LEAVE_LAST,
- OPT_IN_ORDER,
- OPT_NOT_IN_ORDER,
- OPT_INSIDE_OUTER,
- OPT_NOT_INSIDE_OUTER,
- OPT_NESTED,
- OPT_CHAINED,
- OPT_ONESECTOR
-};
-
-static const struct option long_opts[] = {
- { "change-id", no_argument, NULL, 'c' + CHANGE_ID },
- { "print-id", no_argument, NULL, 'c' + PRINT_ID },
- { "id", no_argument, NULL, 'c' },
- { "dump", no_argument, NULL, 'd' },
- { "force", no_argument, NULL, 'f' },
- { "show-geometry", no_argument, NULL, 'g' },
- { "help", no_argument, NULL, 'h' },
- { "increment", no_argument, NULL, 'i' },
- { "list", no_argument, NULL, 'l' },
- { "quiet", no_argument, NULL, 'q' },
- { "show-size", no_argument, NULL, 's' },
- { "unit", required_argument, NULL, 'u' },
- { "version", no_argument, NULL, 'v' },
- { "show-extended", no_argument, NULL, 'x' },
- { "one-only", no_argument, NULL, '1' },
- { "cylinders", required_argument, NULL, 'C' },
- { "heads", required_argument, NULL, 'H' },
- { "sectors", required_argument, NULL, 'S' },
- { "show-pt-geometry", no_argument, NULL, 'G' },
- { "activate", optional_argument, NULL, 'A' },
- { "DOS", no_argument, NULL, 'D' },
- { "DOS-extended", no_argument, NULL, 'E' },
- { "Linux", no_argument, NULL, 'L' },
- { "re-read", no_argument, NULL, 'R' },
- { "list-types", no_argument, NULL, 'T' },
- { "unhide", optional_argument, NULL, 'U' },
- { "no-reread", no_argument, NULL, OPT_NO_REREAD },
- { "IBM", no_argument, NULL, OPT_LEAVE_LAST },
- { "leave-last", no_argument, NULL, OPT_LEAVE_LAST },
-/* dangerous flags - not all completely implemented */
- { "in-order", no_argument, NULL, OPT_IN_ORDER },
- { "not-in-order", no_argument, NULL, OPT_NOT_IN_ORDER },
- { "inside-outer", no_argument, NULL, OPT_INSIDE_OUTER },
- { "not-inside-outer", no_argument, NULL, OPT_NOT_INSIDE_OUTER },
- { "nested", no_argument, NULL, OPT_NESTED },
- { "chained", no_argument, NULL, OPT_CHAINED },
- { "onesector", no_argument, NULL, OPT_ONESECTOR },
- { NULL, 0, NULL, 0 }
-};
-
-static int is_ide_cdrom_or_tape(char *device)
-{
- int fd, ret;
-
- if ((fd = open(device, O_RDONLY)) < 0)
- return 0;
- ret = blkdev_is_cdrom(fd);
-
- close(fd);
- return ret;
-}
-
-static char *nextproc(FILE *f)
-{
- char line[128 + 1];
-
- if (!f)
- return NULL;
-
- while (fgets(line, sizeof(line), f)) {
- char buf[PATH_MAX], *cn;
- dev_t devno;
-
- if (sscanf(line, " %*d %*d %*d %128[^\n ]", buf) != 1)
- continue;
-
- devno = sysfs_devname_to_devno(buf, NULL);
- if (devno <= 0)
- continue;
-
- if (sysfs_devno_is_lvm_private(devno) ||
- sysfs_devno_is_wholedisk(devno) <= 0)
- continue;
-
- if (!sysfs_devno_to_devpath(devno, buf, sizeof(buf)))
- continue;
-
- cn = canonicalize_path(buf);
- if (cn)
- return cn;
- }
-
- return NULL;
-}
-
-static void do_list(char *dev, int silent);
-static void do_size(char *dev, int silent);
-static void do_geom(char *dev, int silent);
-static void do_pt_geom(char *dev, int silent);
-static void do_fdisk(char *dev);
-static void do_reread(char *dev);
-static void do_change_id(char *dev, char *part, char *id);
-static void do_unhide(char **av, int ac, char *arg);
-static void do_activate(char **av, int ac, char *arg);
-
-unsigned long long total_size;
-
-int
-main(int argc, char **argv) {
- int c;
- char *dev;
- int opt_size = 0;
- int opt_out_geom = 0;
- int opt_out_pt_geom = 0;
- int opt_reread = 0;
- int activate = 0;
- int do_id = 0;
- int unhide = 0;
- char *activatearg = 0;
- char *unhidearg = 0;
-
- setlocale(LC_ALL, "");
- bindtextdomain(PACKAGE, LOCALEDIR);
- textdomain(PACKAGE);
- atexit(close_stdout);
-
- if (argc < 1)
- errx(EXIT_FAILURE, _("no command?"));
- if (!strcmp(program_invocation_short_name, "activate"))
- activate = 1; /* equivalent to `sfdisk -A' */
-
- while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
- switch (c) {
- case 'f':
- force = 1;
- break; /* does not imply quiet */
- case 'g':
- opt_out_geom = 1;
- break;
- case 'G':
- opt_out_pt_geom = 1;
- break;
- case 'i':
- increment = 1;
- break;
- case 'c':
- case 'c' + PRINT_ID:
- case 'c' + CHANGE_ID:
- do_id = c;
- break;
- case 'd':
- dump = 1; /* fall through */
- case 'l':
- opt_list = 1;
- break;
- case 'n':
- no_write = 1;
- break;
- case 'q':
- quiet = 1;
- break;
- case 's':
- opt_size = 1;
- break;
- case 'u':
- set_format(*optarg);
- break;
- case 'v':
- printf(UTIL_LINUX_VERSION);
- return EXIT_SUCCESS;
- case 'h':
- usage(stdout);
- return EXIT_SUCCESS;
- case 'x':
- show_extended = 1;
- break;
- case 'A':
- activatearg = optarg;
- activate = 1;
- break;
- case 'C':
- U.cylinders = strtoul_or_err(optarg, _("invalid cylinders argument"));
- break;
- case 'D':
- DOS = 1;
- break;
- case 'E':
- DOS_extended = 1;
- break;
- case 'H':
- U.heads = strtoul_or_err(optarg, _("invalid heads argument"));
- break;
- case 'L':
- Linux = 1;
- break;
- case 'N':
- one_only = strtol_or_err(optarg, _("invalid number of partitions argument"));
- break;
- case 'I':
- restore_sector_file = optarg;
- break;
- case 'O':
- save_sector_file = optarg;
- break;
- case 'R':
- opt_reread = 1;
- break;
- case 'S':
- U.sectors = strtoul_or_err(optarg, _("invalid sectors argument"));
- break;
- case 'T':
- list_types();
- return EXIT_SUCCESS;
- case 'U':
- unhidearg = optarg;
- unhide = 1;
- break;
- case 'V':
- verify = 1;
- break;
- default:
- usage(stderr);
- break;
-
- /* dangerous flags */
- case OPT_IN_ORDER:
- partitions_in_order = 1;
- break;
- case OPT_NOT_IN_ORDER:
- partitions_in_order = 0;
- break;
- case OPT_INSIDE_OUTER:
- all_logicals_inside_outermost_extended = 1;
- break;
- case OPT_NOT_INSIDE_OUTER:
- all_logicals_inside_outermost_extended = 0;
- break;
- case OPT_NESTED:
- boxes = NESTED;
- break;
- case OPT_CHAINED:
- boxes = CHAINED;
- break;
- case OPT_ONESECTOR:
- boxes = ONESECTOR;
- break;
-
- /* more flags */
- case OPT_NO_REREAD:
- no_reread = 1;
- break;
- case OPT_LEAVE_LAST:
- leave_last = 1;
- break;
- }
- }
-
- if (optind == argc &&
- (opt_list || opt_out_geom || opt_out_pt_geom || opt_size || verify)) {
- FILE *procf;
-
- /* try all known devices */
- total_size = 0;
-
- procf = fopen(_PATH_PROC_PARTITIONS, "r");
- if (!procf)
- fprintf(stderr, _("cannot open %s\n"), _PATH_PROC_PARTITIONS);
- else {
- while ((dev = nextproc(procf)) != NULL) {
- if (!is_ide_cdrom_or_tape(dev)) {
- if (opt_out_geom)
- do_geom(dev, 1);
- if (opt_out_pt_geom)
- do_pt_geom(dev, 1);
- if (opt_size)
- do_size(dev, 1);
- if (opt_list || verify)
- do_list(dev, 1);
- }
- free(dev);
- }
- fclose(procf);
- }
-
- if (opt_size)
- printf(_("total: %llu blocks\n"), total_size);
-
- return exit_status;
- }
-
- if (optind == argc) {
- if (activate)
- activate_usage();
- else
- usage(stderr);
- }
-
- if (opt_list || opt_out_geom || opt_out_pt_geom || opt_size || verify) {
- while (optind < argc) {
- if (opt_out_geom)
- do_geom(argv[optind], 0);
- if (opt_out_pt_geom)
- do_pt_geom(argv[optind], 0);
- if (opt_size)
- do_size(argv[optind], 0);
- if (opt_list || verify)
- do_list(argv[optind], 0);
- optind++;
- }
- return exit_status;
- }
-
- if (activate) {
- do_activate(argv + optind, argc - optind, activatearg);
- return exit_status;
- }
- if (unhide) {
- do_unhide(argv + optind, argc - optind, unhidearg);
- return exit_status;
- }
- if (do_id) {
- if ((do_id & PRINT_ID) != 0 && optind != argc - 2)
- errx(EXIT_FAILURE, _("usage: sfdisk --print-id device partition-number"));
- else if ((do_id & CHANGE_ID) != 0 && optind != argc - 3)
- errx(EXIT_FAILURE, _("usage: sfdisk --change-id device partition-number Id"));
- else if (optind != argc - 3 && optind != argc - 2)
- errx(EXIT_FAILURE, _("usage: sfdisk --id device partition-number [Id]"));
- do_change_id(argv[optind], argv[optind + 1],
- (optind == argc - 2) ? 0 : argv[optind + 2]);
- return exit_status;
- }
-
- if (optind != argc - 1)
- errx(EXIT_FAILURE, _("can specify only one device (except with -l or -s)"));
- dev = argv[optind];
-
- if (opt_reread)
- do_reread(dev);
- else if (restore_sector_file)
- restore_sectors(dev);
- else
- do_fdisk(dev);
-
- return exit_status;
-}
-
-/*
- * H. Listing the current situation
- */
-
-static int
-my_open(char *dev, int rw, int silent) {
- int fd, mode;
-
- mode = (rw ? O_RDWR : O_RDONLY);
- fd = open(dev, mode);
- if (fd < 0 && !silent) {
- if (rw)
- err(EXIT_FAILURE, _("cannot open %s read-write"), dev);
- else
- err(EXIT_FAILURE, _("cannot open %s for reading"), dev);
- }
- return fd;
-}
-
-static void
-do_list(char *dev, int silent) {
- int fd;
- struct disk_desc *z;
-
- fd = my_open(dev, 0, silent);
- if (fd < 0)
- return;
-
- z = &oldp;
-
- free_sectors();
- get_cylindersize(dev, fd, dump ? 1 : opt_list ? 0 : 1);
- get_partitions(dev, fd, z);
-
- if (opt_list)
- out_partitions(dev, z);
-
- if (verify) {
- if (partitions_ok(fd, z))
- printf(_("%s: OK"), dev);
- else
- exit_status = 1;
- }
-
- close(fd);
-}
-
-static void
-do_geom(char *dev, int silent) {
- int fd;
- struct geometry R;
-
- fd = my_open(dev, 0, silent);
- if (fd < 0)
- return;
-
- R = get_geometry(dev, fd, silent);
- if (R.cylinders)
- printf(_("%s: %ld cylinders, %ld heads, %ld sectors/track\n"),
- dev, R.cylinders, R.heads, R.sectors);
-
- close(fd);
-}
-
-static void
-do_pt_geom(char *dev, int silent) {
- int fd;
- struct disk_desc *z;
- struct geometry R;
-
- fd = my_open(dev, 0, silent);
- if (fd < 0)
- return;
-
- z = &oldp;
-
- free_sectors();
- get_cylindersize(dev, fd, 1);
- get_partitions(dev, fd, z);
-
- R = B;
-
- if (z->partno != 0 && get_fdisk_geometry(z)) {
- R.heads = F.heads;
- R.sectors = F.sectors;
- R.cylindersize = R.heads * R.sectors;
- R.cylinders = (R.cylindersize == 0) ? 0 : R.total_size / R.cylindersize;
- }
-
- if (R.cylinders)
- printf(_("%s: %ld cylinders, %ld heads, %ld sectors/track\n"),
- dev, R.cylinders, R.heads, R.sectors);
-
- close(fd);
-}
-
-/* for compatibility with earlier fdisk: provide option -s */
-static void
-do_size(char *dev, int silent) {
- int fd;
- unsigned long long size;
-
- fd = my_open(dev, 0, silent);
- if (fd < 0)
- return;
-
- if (blkdev_get_sectors(fd, &size) == -1) {
- if (!silent)
- err(EXIT_FAILURE, _("Cannot get size of %s"), dev);
- goto done;
- }
-
- size /= 2; /* convert sectors to blocks */
-
- /* a CDROM drive without mounted CD yields MAXINT */
- if (silent && size == ((1 << 30) - 1))
- goto done;
-
- if (silent)
- printf("%s: %9llu\n", dev, size);
- else
- printf("%llu\n", size);
-
- total_size += size;
-
-done:
- close(fd);
-}
-
-/*
- * Activate: usually one wants to have a single primary partition
- * to be active. OS/2 fdisk makes non-bootable logical partitions
- * active - I don't know what that means to OS/2 Boot Manager.
- *
- * Call: activate /dev/hda 2 5 7 make these partitions active
- * and the remaining ones inactive
- * Or: sfdisk -A /dev/hda 2 5 7
- *
- * If only a single partition must be active, one may also use the form
- * sfdisk -A2 /dev/hda
- *
- * With "activate /dev/hda" or "sfdisk -A /dev/hda" the active partitions
- * are listed but not changed. To get zero active partitions, use
- * "activate /dev/hda none" or "sfdisk -A /dev/hda none".
- * Use something like `echo ",,,*" | sfdisk -N2 /dev/hda' to only make
- * /dev/hda2 active, without changing other partitions.
- *
- * A warning will be given if after the change not precisely one primary
- * partition is active.
- *
- * The present syntax was chosen to be (somewhat) compatible with the
- * activate from the LILO package.
- */
-static void
-set_active(struct disk_desc *z, char *pnam) {
- int pno;
-
- pno = asc_to_index(pnam, z);
- if (z->partitions[pno].ptype == DOS_TYPE)
- z->partitions[pno].p.bootable = 0x80;
-}
-
-static void
-do_activate(char **av, int ac, char *arg) {
- char *dev = av[0];
- int fd;
- int rw, i, pno, lpno;
- struct disk_desc *z;
-
- z = &oldp;
-
- rw = (!no_write && (arg || ac > 1));
- fd = my_open(dev, rw, 0);
-
- free_sectors();
- get_cylindersize(dev, fd, 1);
- get_partitions(dev, fd, z);
-
- if (!arg && ac == 1) {
- /* list active partitions */
- for (pno = 0; pno < z->partno; pno++) {
- if (z->partitions[pno].p.bootable) {
- lpno = index_to_linux(pno, z);
- if (pno == linux_to_index(lpno, z))
- printf("%s\n", partname(dev, lpno, 0));
- else
- printf("%s#%d\n", dev, pno);
- if (z->partitions[pno].p.bootable != 0x80)
- warnx(_("bad active byte: 0x%x instead of 0x80"),
- z->partitions[pno].p.bootable);
- }
- }
- } else {
- /* clear `active byte' everywhere */
- for (pno = 0; pno < z->partno; pno++)
- if (z->partitions[pno].ptype == DOS_TYPE)
- z->partitions[pno].p.bootable = 0;
-
- /* then set where desired */
- if (ac == 1)
- set_active(z, arg);
- else
- for (i = 1; i < ac; i++)
- set_active(z, av[i]);
-
- /* then write to disk */
- if (write_partitions(dev, fd, z))
- warnx(_("Done"));
- else
- exit_status = 1;
- }
- i = 0;
- for (pno = 0; pno < z->partno && pno < 4; pno++)
- if (z->partitions[pno].p.bootable)
- i++;
- if (i != 1)
- warnx(_("You have %d active primary partitions. This does not matter for LILO,\n"
- "but the DOS MBR will only boot a disk with 1 active partition."),
- i);
-
- if (close_fd(fd) != 0) {
- warnx(_("write failed"));
- exit_status = 1;
- }
-}
-
-static void
-set_unhidden(struct disk_desc *z, char *pnam) {
- int pno;
- unsigned char id;
-
- pno = asc_to_index(pnam, z);
- id = z->partitions[pno].p.sys_type;
- if (id == 0x11 || id == 0x14 || id == 0x16 || id == 0x17 ||
- id == 0x17 || id == 0x1b || id == 0x1c || id == 0x1e)
- id -= 0x10;
- else
- errx(EXIT_FAILURE, _("partition %s has id %x and is not hidden"), pnam, id);
- z->partitions[pno].p.sys_type = id;
-}
-
-/*
- * maybe remove and make part of --change-id
- */
-static void
-do_unhide(char **av, int ac, char *arg) {
- char *dev = av[0];
- int fd, rw, i;
- struct disk_desc *z;
-
- z = &oldp;
-
- rw = !no_write;
- fd = my_open(dev, rw, 0);
-
- free_sectors();
- get_cylindersize(dev, fd, 1);
- get_partitions(dev, fd, z);
-
- /* unhide where desired */
- if (ac == 1)
- set_unhidden(z, arg);
- else
- for (i = 1; i < ac; i++)
- set_unhidden(z, av[i]);
-
- /* then write to disk */
- if (write_partitions(dev, fd, z))
- warn(_("Done"));
- else
- exit_status = 1;
-
- if (close_fd(fd) != 0) {
- warn(_("write failed"));
- exit_status = 1;
- }
-}
-
-static void
-do_change_id(char *dev, char *pnam, char *id) {
- int fd, rw, pno;
- struct disk_desc *z;
- unsigned long i;
-
- z = &oldp;
-
- rw = !no_write;
- fd = my_open(dev, rw, 0);
-
- free_sectors();
- get_cylindersize(dev, fd, 1);
- get_partitions(dev, fd, z);
-
- pno = asc_to_index(pnam, z);
- if (id == 0) {
- printf("%x\n", z->partitions[pno].p.sys_type);
- goto done;
- }
- i = strtoul(id, NULL, 16);
- if (i > 255)
- errx(EXIT_FAILURE, _("Bad Id %lx"), i);
- z->partitions[pno].p.sys_type = i;
-
- if (write_partitions(dev, fd, z))
- warnx(_("Done"));
- else
- exit_status = 1;
-
-done:
- if (close_fd(fd) != 0) {
- warnx(_("write failed"));
- exit_status = 1;
- }
-}
-
-static void
-do_reread(char *dev) {
- int fd;
-
- fd = my_open(dev, 0, 0);
- if (reread_ioctl(fd)) {
- warnx(_("This disk is currently in use."));
- exit(EXIT_FAILURE);
- }
-
- close(fd);
-}
-
-/*
- * I. Writing the new situation
- */
-
-static void
-do_fdisk(char *dev) {
- int fd;
- char answer[32];
- struct stat statbuf;
- int interactive = isatty(0);
- struct disk_desc *z;
-
- if (stat(dev, &statbuf) < 0)
- err(EXIT_FAILURE, _("Fatal error: cannot find %s"), dev);
- if (!S_ISBLK(statbuf.st_mode)) {
- warnx(_("Warning: %s is not a block device"), dev);
- no_reread = 1;
- }
- fd = my_open(dev, !no_write, 0);
-
- if (!no_write && !no_reread) {
- warnx(_("Checking that no-one is using this disk right now ..."));
- if (reread_ioctl(fd)) {
- warnx(_("\nThis disk is currently in use - repartitioning is probably a bad idea.\n"
- "Umount all file systems, and swapoff all swap partitions on this disk.\n"
- "Use the --no-reread flag to suppress this check."));
- if (!force)
- errx(EXIT_FAILURE, _("Use the --force flag to overrule all checks."));
- } else
- warnx(_("OK"));
- }
-
- z = &oldp;
-
- free_sectors();
- get_cylindersize(dev, fd, 0);
- get_partitions(dev, fd, z);
-
- printf(_("Old situation:\n"));
- out_partitions(dev, z);
-
- if (one_only && (one_only_pno = linux_to_index(one_only, z)) < 0)
- errx(EXIT_FAILURE, _("Partition %d does not exist, cannot change it"), one_only);
-
- z = &newp;
-
- while (1) {
-
- read_input(dev, interactive, z);
-
- printf(_("New situation:\n"));
- out_partitions(dev, z);
-
- if (!partitions_ok(fd, z) && !force) {
- if (!interactive)
- errx(EXIT_FAILURE, _("I don't like these partitions - nothing changed.\n"
- "(If you really want this, use the --force option.)"));
- else
- warnx(_("I don't like this - probably you should answer No"));
- }
- if (interactive) {
- ask:
- if (no_write)
- /* TRANSLATORS: sfdisk uses rpmatch which means the answers y and n
- * should be translated, but that is not the case with q answer. */
- printf(_("Are you satisfied with this? [ynq] "));
- else
- printf(_("Do you want to write this to disk? [ynq] "));
- ignore_result( fgets(answer, sizeof(answer), stdin) );
- if (answer[0] == 'q' || answer[0] == 'Q') {
- errx(EXIT_FAILURE, _("Quitting - nothing changed"));
- } else if (rpmatch(answer) == 0) {
- continue;
- } else if (rpmatch(answer) == 1) {
- break;
- } else {
- printf(_("Please answer one of y,n,q\n"));
- goto ask;
- }
- } else
- break;
- }
-
- if (write_partitions(dev, fd, z))
- printf(_("Successfully wrote the new partition table\n\n"));
- else
- exit_status = 1;
-
- if (!reread_disk_partition(dev, fd)) { /* close fd on success */
- close(fd);
- exit_status = 1;
- }
- warnx(_("If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)\n"
- "to zero the first 512 bytes: dd if=/dev/zero of=/dev/foo7 bs=512 count=1\n"
- "(See fdisk(8).)"));
-
- sync(); /* superstition */
-}
-
-
-/*
- * return partition name - uses static storage unless buf is supplied
- */
-static char *partname(char *dev, int pno, int lth)
-{
- static char bufp[PATH_MAX];
- char *p;
- int w, wp;
-
- w = strlen(dev);
- p = "";
-
- if (isdigit(dev[w-1]))
- p = "p";
-
- /* devfs kludge - note: fdisk partition names are not supposed
- to equal kernel names, so there is no reason to do this */
- if (strcmp (dev + w - 4, "disc") == 0) {
- w -= 4;
- p = "part";
- }
-
- /* udev names partitions by appending -partN
- e.g. ata-SAMSUNG_SV8004H_0357J1FT712448-part1 */
- if ((strncmp(dev, _PATH_DEV_BYID, strlen(_PATH_DEV_BYID)) == 0) ||
- strncmp(dev, _PATH_DEV_BYPATH, strlen(_PATH_DEV_BYPATH)) == 0) {
- p = "-part";
- }
-
- wp = strlen(p);
-
- if (lth) {
- snprintf(bufp, sizeof(bufp), "%*.*s%s%-2u",
- lth-wp-2, w, dev, p, pno);
- } else {
- snprintf(bufp, sizeof(bufp), "%.*s%s%-2u", w, dev, p, pno);
- }
- return bufp;
+ DBG(MISC, ul_debug("bye! [rc=%d]", rc));
+ return rc == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
projects / thirdparty / util-linux.git / commitdiff
