struct disklabel *
getdiskbyname(const char *name)
{
static struct disklabel disk;
struct disklabel *dp = &disk;
struct partition *pp;
char *buf;
char *db_array[2] = { _PATH_DISKTAB, 0 };
char *cp, *cq;
char p, max, psize[3], pbsize[3],
pfsize[3], poffset[3], ptype[3];
u_int32_t *dx;
if (cgetent(&buf, db_array, (char *) name) < 0)
return NULL;
bzero((char *)&disk, sizeof(disk));
/*
* typename
*/
cq = dp->d_typename;
cp = buf;
while (cq < dp->d_typename + sizeof(dp->d_typename) - 1 &&
(*cq = *cp) && *cq != '|' && *cq != ':')
cq++, cp++;
*cq = '\0';
if (cgetcap(buf, "sf", ':') != NULL)
dp->d_flags |= D_BADSECT;
#define getnumdflt(field, dname, dflt) \
{ long f; (field) = (cgetnum(buf, dname, &f) == -1) ? (dflt) : f; }
#define getnum(field, dname) \
{ long f; cgetnum(buf, dname, &f); field = f; }
getnumdflt(dp->d_secsize, "se", DEV_BSIZE);
getnum(dp->d_ntracks, "nt");
getnum(dp->d_nsectors, "ns");
getnum(dp->d_ncylinders, "nc");
if (cgetstr(buf, "dt", &cq) > 0)
dp->d_type = (u_short)gettype(cq, dktypenames);
else
getnumdflt(dp->d_type, "dt", 0);
getnumdflt(dp->d_secpercyl, "sc", dp->d_nsectors * dp->d_ntracks);
/* XXX */
dp->d_secperunith = 0;
getnumdflt(dp->d_secperunit, "su", dp->d_secpercyl * dp->d_ncylinders);
getnumdflt(dp->d_bbsize, "bs", BBSIZE);
getnumdflt(dp->d_sbsize, "sb", SBSIZE);
strlcpy(psize, "px", sizeof psize);
strlcpy(pbsize, "bx", sizeof pbsize);
strlcpy(pfsize, "fx", sizeof pfsize);
strlcpy(poffset, "ox", sizeof poffset);
strlcpy(ptype, "tx", sizeof ptype);
max = 'a' - 1;
pp = &dp->d_partitions[0];
dp->d_version = 1;
for (p = 'a'; p < 'a' + MAXPARTITIONS; p++, pp++) {
long f;
psize[1] = pbsize[1] = pfsize[1] = poffset[1] = ptype[1] = p;
/* XXX */
if (cgetnum(buf, psize, &f) == -1)
DL_SETPSIZE(pp, 0);
else {
u_int32_t fsize, frag = 8;
DL_SETPSIZE(pp, f);
/* XXX */
pp->p_offseth = 0;
getnum(pp->p_offset, poffset);
getnumdflt(fsize, pfsize, 0);
if (fsize) {
long bsize;
if (cgetnum(buf, pbsize, &bsize) == 0)
frag = bsize / fsize;
pp->p_fragblock =
DISKLABELV1_FFS_FRAGBLOCK(fsize, frag);
}
getnumdflt(pp->p_fstype, ptype, 0);
if (pp->p_fstype == 0 && cgetstr(buf, ptype, &cq) > 0)
pp->p_fstype = (u_char)gettype(cq, fstypenames);
max = p;
}
}
dp->d_npartitions = max + 1 - 'a';
(void)strlcpy(psize, "dx", sizeof psize);
dx = dp->d_drivedata;
for (p = '0'; p < '0' + NDDATA; p++, dx++) {
psize[1] = p;
getnumdflt(*dx, psize, 0);
}
dp->d_magic = DISKMAGIC;
dp->d_magic2 = DISKMAGIC;
free(buf);
return (dp);
}
struct disklabel *
getdiskbyname(const char *name)
{
static struct disklabel disk;
struct disklabel *dp = &disk;
struct partition *pp;
char *buf;
char *db_array[2] = { _PATH_DISKTAB, 0 };
char *cp, *cq; /* can't be register */
char p, max, psize[3], pbsize[3],
pfsize[3], poffset[3], ptype[3];
u_int32_t *dx;
if (cgetent(&buf, db_array, (char *) name) < 0)
return NULL;
bzero((char *)&disk, sizeof(disk));
/*
* typename
*/
cq = dp->d_typename;
cp = buf;
while (cq < dp->d_typename + sizeof(dp->d_typename) - 1 &&
(*cq = *cp) && *cq != '|' && *cq != ':')
cq++, cp++;
*cq = '\0';
if (cgetstr(buf, "ty", &cq) > 0 && strcmp(cq, "removable") == 0)
dp->d_flags |= D_REMOVABLE;
else if (cq && strcmp(cq, "simulated") == 0)
dp->d_flags |= D_RAMDISK;
if (cgetcap(buf, "sf", ':') != NULL)
dp->d_flags |= D_BADSECT;
#define getnumdflt(field, dname, dflt) \
{ long f; (field) = (cgetnum(buf, dname, &f) == -1) ? (dflt) : f; }
getnumdflt(dp->d_secsize, "se", DEV_BSIZE);
getnumdflt(dp->d_ntracks, "nt", 0);
getnumdflt(dp->d_nsectors, "ns", 0);
getnumdflt(dp->d_ncylinders, "nc", 0);
if (cgetstr(buf, "dt", &cq) > 0)
dp->d_type = gettype(cq, dktypenames);
else
getnumdflt(dp->d_type, "dt", 0);
getnumdflt(dp->d_secpercyl, "sc", dp->d_nsectors * dp->d_ntracks);
getnumdflt(dp->d_secperunit, "su", dp->d_secpercyl * dp->d_ncylinders);
getnumdflt(dp->d_rpm, "rm", 3600);
getnumdflt(dp->d_interleave, "il", 1);
getnumdflt(dp->d_trackskew, "sk", 0);
getnumdflt(dp->d_cylskew, "cs", 0);
getnumdflt(dp->d_headswitch, "hs", 0);
getnumdflt(dp->d_trkseek, "ts", 0);
getnumdflt(dp->d_bbsize, "bs", BBSIZE);
getnumdflt(dp->d_sbsize, "sb", 0);
strcpy(psize, "px");
strcpy(pbsize, "bx");
strcpy(pfsize, "fx");
strcpy(poffset, "ox");
strcpy(ptype, "tx");
max = 'a' - 1;
pp = &dp->d_partitions[0];
for (p = 'a'; p < 'a' + MAXPARTITIONS; p++, pp++) {
long l;
psize[1] = pbsize[1] = pfsize[1] = poffset[1] = ptype[1] = p;
if (cgetnum(buf, psize, &l) == -1)
pp->p_size = 0;
else {
pp->p_size = l;
cgetnum(buf, poffset, &l);
pp->p_offset = l;
getnumdflt(pp->p_fsize, pfsize, 0);
if (pp->p_fsize) {
long bsize;
if (cgetnum(buf, pbsize, &bsize) == 0)
pp->p_frag = bsize / pp->p_fsize;
else
pp->p_frag = 8;
}
getnumdflt(pp->p_fstype, ptype, 0);
if (pp->p_fstype == 0 && cgetstr(buf, ptype, &cq) > 0)
pp->p_fstype = gettype(cq, fstypenames);
max = p;
}
}
dp->d_npartitions = max + 1 - 'a';
(void)strcpy(psize, "dx");
dx = dp->d_drivedata;
for (p = '0'; p < '0' + NDDATA; p++, dx++) {
psize[1] = p;
getnumdflt(*dx, psize, 0);
}
dp->d_magic = DISKMAGIC;
dp->d_magic2 = DISKMAGIC;
free(buf);
return (dp);
}
struct disklabel *
getdiskbyname(const char *name)
{
static struct disklabel disk;
struct disklabel *dp = &disk;
struct partition *pp;
char *buf;
char *cp, *cq; /* can't be */
char p, max, psize[3], pbsize[3],
pfsize[3], poffset[3], ptype[3];
u_int32_t *dx;
long f;
_DIAGASSERT(name != NULL);
if (cgetent(&buf, db_array, name) < 0)
return NULL;
memset(&disk, 0, sizeof(disk));
/*
* typename
*/
cq = dp->d_typename;
cp = buf;
while (cq < dp->d_typename + sizeof(dp->d_typename) - 1 &&
(*cq = *cp) && *cq != '|' && *cq != ':')
cq++, cp++;
*cq = '\0';
/*
* boot name (optional) xxboot, bootxx
*/
cgetstr(buf, "b0", &dp->d_boot0);
cgetstr(buf, "b1", &dp->d_boot1);
if (cgetstr(buf, "ty", &cq) >= 0) {
if (strcmp(cq, "removable") == 0)
dp->d_flags |= D_REMOVABLE;
else if (strcmp(cq, "simulated") == 0)
dp->d_flags |= D_RAMDISK;
free(cq);
}
if (cgetcap(buf, "sf", ':') != NULL)
dp->d_flags |= D_BADSECT;
#define getnumdflt(field, dname, dflt) \
(field) = ((cgetnum(buf, dname, &f) == -1) ? (dflt) : (u_int32_t) f)
#define getnum(field, dname) \
if (cgetnum(buf, dname, &f) != -1) field = (u_int32_t)f
getnumdflt(dp->d_secsize, "se", DEV_BSIZE);
getnum(dp->d_ntracks, "nt");
getnum(dp->d_nsectors, "ns");
getnum(dp->d_ncylinders, "nc");
if (cgetstr(buf, "dt", &cq) >= 0) {
dp->d_type = gettype(cq, dktypenames);
free(cq);
} else
getnumdflt(dp->d_type, "dt", 0);
getnumdflt(dp->d_secpercyl, "sc", dp->d_nsectors * dp->d_ntracks);
getnumdflt(dp->d_secperunit, "su", dp->d_secpercyl * dp->d_ncylinders);
getnumdflt(dp->d_rpm, "rm", 3600);
getnumdflt(dp->d_interleave, "il", 1);
getnumdflt(dp->d_trackskew, "sk", 0);
getnumdflt(dp->d_cylskew, "cs", 0);
getnumdflt(dp->d_headswitch, "hs", 0);
getnumdflt(dp->d_trkseek, "ts", 0);
getnumdflt(dp->d_bbsize, "bs", BBSIZE);
getnumdflt(dp->d_sbsize, "sb", SBLOCKSIZE);
strcpy(psize, "px"); /* XXX: strcpy is safe */
strcpy(pbsize, "bx"); /* XXX: strcpy is safe */
strcpy(pfsize, "fx"); /* XXX: strcpy is safe */
strcpy(poffset, "ox"); /* XXX: strcpy is safe */
strcpy(ptype, "tx"); /* XXX: strcpy is safe */
max = 'a' - 1;
pp = &dp->d_partitions[0];
for (p = 'a'; p < 'a' + MAXPARTITIONS; p++, pp++) {
long ff;
psize[1] = pbsize[1] = pfsize[1] = poffset[1] = ptype[1] = p;
if (cgetnum(buf, psize, &ff) == -1)
pp->p_size = 0;
else {
pp->p_size = (u_int32_t)ff;
getnum(pp->p_offset, poffset);
getnumdflt(pp->p_fsize, pfsize, 0);
if (pp->p_fsize) {
long bsize;
if (cgetnum(buf, pbsize, &bsize) == -1)
pp->p_frag = 8;
else
pp->p_frag =
(u_int8_t)(bsize / pp->p_fsize);
}
getnumdflt(pp->p_fstype, ptype, 0);
if (pp->p_fstype == 0)
if (cgetstr(buf, ptype, &cq) >= 0) {
pp->p_fstype = gettype(cq, fstypenames);
free(cq);
}
max = p;
}
}
dp->d_npartitions = max + 1 - 'a';
strcpy(psize, "dx"); /* XXX: strcpy is safe */
dx = dp->d_drivedata;
for (p = '0'; p < '0' + NDDATA; p++, dx++) {
psize[1] = p;
getnumdflt(*dx, psize, 0);
}
dp->d_magic = DISKMAGIC;
dp->d_magic2 = DISKMAGIC;
free(buf);
return (dp);
}
