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-rw-r--r--fdisk/sfdisk.c191
1 files changed, 111 insertions, 80 deletions
diff --git a/fdisk/sfdisk.c b/fdisk/sfdisk.c
index 404321930..ddd553dd1 100644
--- a/fdisk/sfdisk.c
+++ b/fdisk/sfdisk.c
@@ -868,24 +868,24 @@ out_partition_header(char *dev, int format, struct geometry G) {
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"));
+ 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"));
+ 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"));
+ printf(_(" Device Boot Start End #blocks Id System\n"));
break;
case F_MEGABYTE:
printf(_("Units = megabytes of 1048576 bytes, blocks of 1024 bytes"
", counting from %d\n\n"), increment);
- printf(_(" Device Boot Start End MB #blocks Id System\n"));
+ printf(_(" Device Boot Start End MB #blocks Id System\n"));
break;
}
}
@@ -917,13 +917,41 @@ out_roundup_size(int width, unsigned long n, unsigned long unit) {
putchar(' ');
}
-static int
-get_fdisk_geometry(struct part_desc *p) {
+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);
- F.heads = bb.h+1;
- F.sectors = bb.s;
- F.cylindersize = F.heads*F.sectors;
+ G.heads = bb.h+1;
+ G.sectors = bb.s;
+ G.cylindersize = G.heads*G.sectors;
+ G.cylinders = G.start = 0;
+ return G;
+}
+
+static int
+get_fdisk_geometry(struct disk_desc *z) {
+ struct part_desc *p;
+ int pno, agree;
+ struct geometry G0, G;
+
+ agree = 0;
+ G0.heads = G0.sectors = 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);
}
@@ -952,7 +980,7 @@ out_partition(char *dev, int format, struct part_desc *p,
if (dump) {
printf(" start=%9lu", start);
- printf(", size=%8lu", size);
+ printf(", size=%9lu", size);
if (p->ptype == DOS_TYPE) {
printf(", Id=%2x", p->p.sys_type);
if (p->p.bootable == 0x80)
@@ -975,7 +1003,7 @@ out_partition(char *dev, int format, struct part_desc *p,
out_rounddown(6, start, G.cylindersize, increment);
out_roundup(6, end, G.cylindersize, increment);
out_roundup_size(6, size, G.cylindersize);
- out_rounddown(8, size, 2, 0);
+ out_rounddown(9, size, 2, 0);
break;
}
/* fall through */
@@ -983,7 +1011,7 @@ out_partition(char *dev, int format, struct part_desc *p,
case F_SECTOR:
out_rounddown(9, start, 1, increment);
out_roundup(9, end, 1, increment);
- out_rounddown(9, size, 1, 0);
+ out_rounddown(10, size, 1, 0);
break;
case F_BLOCK:
#if 0
@@ -992,17 +1020,17 @@ out_partition(char *dev, int format, struct part_desc *p,
#endif
out_rounddown(8, start, 2, increment);
out_roundup(8, end, 2, increment);
- out_rounddown(8, size, 2, 0);
+ 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(8, size, 2, 0);
+ out_rounddown(9, size, 2, 0);
break;
}
if (p->ptype == DOS_TYPE) {
- printf(" %2x %s\n",
+ printf(" %2x %s\n",
p->p.sys_type, sysname(p->p.sys_type));
} else {
printf("\n");
@@ -1034,24 +1062,19 @@ out_partition(char *dev, int format, struct part_desc *p,
static void
out_partitions(char *dev, struct disk_desc *z) {
- struct part_desc *p;
int pno, format = 0;
if (z->partno == 0)
printf(_("No partitions found\n"));
else {
- for (pno=0; pno < z->partno; pno++) {
- p = &(z->partitions[pno]);
- if (p->size != 0 && p->p.sys_type != 0) {
- if (get_fdisk_geometry(p) && !dump)
- printf(
- _("Warning: The first partition 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.\n"),
- F.heads, F.sectors, B.cylinders, B.heads, B.sectors);
- break;
- }
+ if (get_fdisk_geometry(z) && !dump) {
+ printf(
+ _("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.\n"),
+ 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);
@@ -1094,7 +1117,7 @@ partitions_ok(struct disk_desc *z) {
/* Have at least 4 partitions been defined? */
if (partno < 4) {
- if (!partno)
+ if (!partno)
fatal(_("no partition table present.\n"));
else
fatal(_("strange, only %d partitions defined.\n"), partno);
@@ -1144,10 +1167,10 @@ partitions_ok(struct disk_desc *z) {
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) {
- warn(_("Warning: partition %s contains part of "
+ 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) {
+ warn(_("Warning: partition %s contains part of "
"the partition table (sector %lu),\n"
"and will destroy it when filled\n"),
PNO(p), q->start);
@@ -1161,12 +1184,12 @@ partitions_ok(struct disk_desc *z) {
if(p->start == 0) {
warn(_("Warning: partition %s starts at sector 0\n"), PNO(p));
return 0;
- }
- if (p->size && p->start + p->size > ds) {
+ }
+ if (p->size && p->start + p->size > ds) {
warn(_("Warning: partition %s extends past end of disk\n"),
PNO(p));
return 0;
- }
+ }
}
}
@@ -1225,12 +1248,12 @@ partitions_ok(struct disk_desc *z) {
"This does not matter for LILO, but the DOS MBR will "
"not boot this disk.\n"));
break;
- }
+ }
if (p - partitions >= 4) {
warn(_("Warning: usually one can boot from primary partitions "
"only\nLILO disregards the `bootable' flag.\n"));
break;
- }
+ }
}
if (pno == -1 || pno >= 4)
warn(_("Warning: no primary partition is marked bootable (active)\n"
@@ -1337,7 +1360,7 @@ extended_partition(char *dev, int fd, struct part_desc *ep, struct disk_desc *z)
partitions[pno].ptype = DOS_TYPE;
partitions[pno].p = p;
pno++;
- }
+ }
here = next;
}
@@ -1346,19 +1369,19 @@ extended_partition(char *dev, int fd, struct part_desc *ep, struct disk_desc *z)
#define BSD_DISKMAGIC (0x82564557UL)
#define BSD_MAXPARTITIONS 8
-#define BSD_FS_UNUSED 0
+#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_typename[16];
+ char d_packname[16];
char d_junk2[92];
- u32 d_magic2;
+ u32 d_magic2;
char d_junk3[2];
- u16 d_npartitions; /* number of partitions in following */
+ 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 */
@@ -2298,25 +2321,6 @@ static const struct option long_opts[] = {
{ NULL, 0, NULL, 0 }
};
-/* default devices to list - will be removed */
-static struct devd {
- char *pref, *letters;
-} defdevs[] = {
- { "hd", "abcdefgh" },
- { "sd", "abcde" },
- { "xd", "ab" },
- { "ed", "abcd" },
- /* Compaq's SMART Array Controllers */
- { "cciss/c0d", "01234567" },
- { "cciss/c1d", "01234567" },
- /* Compaq's SMART2 Intelligent Disk Array Controllers */
- { "ida/c0d", "01234567" },
- { "ida/c1d", "01234567" },
- /* Mylex DAC960/AcceleRAID/eXtremeRAID PCI RAID Controllers */
- { "rd/c0d", "01234567" },
- { "rd/c1d", "01234567" }
-};
-
static int
is_ide_cdrom_or_tape(char *device) {
FILE *procf;
@@ -2350,6 +2354,40 @@ is_ide_cdrom_or_tape(char *device) {
return is_ide;
}
+#define PROC_PARTITIONS "/proc/partitions"
+static FILE *procf = NULL;
+
+static void
+openproc(void) {
+ procf = fopen(PROC_PARTITIONS, "r");
+ if (procf == NULL)
+ fprintf(stderr, _("cannot open %s\n"), PROC_PARTITIONS);
+}
+
+static char *
+nextproc(void) {
+ static char devname[120];
+ char line[100], ptname[100], *s;
+ int ma, mi, sz;
+
+ if (procf == NULL)
+ return NULL;
+ while (fgets(line, sizeof(line), procf) != NULL) {
+ if (sscanf (line, " %d %d %d %[^\n ]",
+ &ma, &mi, &sz, ptname) != 4)
+ continue;
+ for(s = ptname; *s; s++);
+ if (isdigit(s[-1]))
+ continue;
+ snprintf(devname, sizeof(devname), "/dev/%s", ptname);
+ return devname;
+ }
+
+ fclose(procf);
+ procf = NULL;
+ 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);
@@ -2484,25 +2522,18 @@ main(int argc, char **argv) {
}
if (optind == argc && (opt_list || opt_out_geom || opt_size || verify)) {
- struct devd *dp;
- char *lp;
- char device[10];
-
+ /* try all known devices */
total_size = 0;
-
- for(dp = defdevs; dp-defdevs < SIZE(defdevs); dp++) {
- lp = dp->letters;
- while(*lp) {
- sprintf(device, "/dev/%s%c", dp->pref, *lp++);
- if (!strcmp(dp->pref, "hd") && is_ide_cdrom_or_tape(device))
- continue;
- if (opt_out_geom)
- do_geom(device, 1);
- if (opt_size)
- do_size(device, 1);
- if (opt_list || verify)
- do_list(device, 1);
- }
+ openproc();
+ while ((dev = nextproc()) != NULL) {
+ if (!strncmp(dev, "hd", 2) && is_ide_cdrom_or_tape(dev))
+ continue;
+ if (opt_out_geom)
+ do_geom(dev, 1);
+ if (opt_size)
+ do_size(dev, 1);
+ if (opt_list || verify)
+ do_list(dev, 1);
}
if (opt_size)
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-24 08:14:56 +0200