예제 #1
0
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);
}
예제 #2
0
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);
}
예제 #3
0
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);
}