1 files changed, 74 insertions, 0 deletions
diff --git a/lib/libdisk/write_disk.c b/lib/libdisk/write_disk.c
new file mode 100644
index 0000000..0a27ac9
--- /dev/null
+++ b/lib/libdisk/write_disk.c
@@ -0,0 +1,74 @@
+/*
+ * ----------------------------------------------------------------------------
+ * "THE BEER-WARE LICENSE" (Revision 42):
+ * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
+ * can do whatever you want with this stuff. If we meet some day, and you think
+ * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
+ * ----------------------------------------------------------------------------
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/disklabel.h>
+#include <sys/diskslice.h>
+#include <paths.h>
+#include "libdisk.h"
+
+void
+Fill_Disklabel(struct disklabel *dl, const struct disk *new, const struct disk *old, const struct chunk *c1)
+{
+	struct chunk *c2;
+	int j;
+
+	memset(dl, 0, sizeof *dl);
+
+	for(c2 = c1->part; c2; c2 = c2->next) {
+		if (c2->type == unused) continue;
+		if (!strcmp(c2->name, "X")) continue;
+		j = c2->name[strlen(c2->name) - 1] - 'a';
+		if (j < 0 || j >= MAXPARTITIONS || j == RAW_PART)
+			continue;
+		dl->d_partitions[j].p_size = c2->size;
+		dl->d_partitions[j].p_offset = c2->offset;
+		dl->d_partitions[j].p_fstype = c2->subtype;
+	}
+
+	dl->d_bbsize = BBSIZE;
+	/*
+	 * Add in defaults for superblock size, interleave, and rpms
+	 */
+	dl->d_sbsize = 0;
+
+	strcpy(dl->d_typename, c1->name);
+
+	dl->d_secsize = 512;
+	dl->d_secperunit = new->chunks->size;
+	dl->d_ncylinders =  new->bios_cyl;
+	dl->d_ntracks =  new->bios_hd;
+	dl->d_nsectors =  new->bios_sect;
+	dl->d_secpercyl = dl->d_ntracks * dl->d_nsectors;
+
+	dl->d_npartitions = MAXPARTITIONS;
+
+	dl->d_type = new->name[0] == 's' || new->name[0] == 'd' ||
+	    new->name[0] == 'o' ? DTYPE_SCSI : DTYPE_ESDI;
+	dl->d_partitions[RAW_PART].p_size = c1->size;
+	dl->d_partitions[RAW_PART].p_offset = c1->offset;
+	dl->d_rpm = 3600;
+	dl->d_interleave = 1;
+
+	dl->d_magic = DISKMAGIC;
+	dl->d_magic2 = DISKMAGIC;
+	dl->d_checksum = dkcksum(dl);
+
+	return;
+}