libfdisk: move partition stuff to partition.c

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/libfdisk/src/partition.c b/libfdisk/src/partition.c
index 3cef46c20..513af4f0a 100644
--- a/libfdisk/src/partition.c
+++ b/libfdisk/src/partition.c
@@ -344,3 +344,101 @@ int fdisk_partition_to_string(struct fdisk_partition *pa,
 		*data = p;
 	return rc;
 }
+
+/**
+ * fdisk_get_partition:
+ * @cxt:
+ * @partno:
+ * @pa: pointer to partition struct
+ *
+ * Fills in @pa with data about partition @n.
+ *
+ * Returns: 0 on success, otherwise, a corresponding error.
+ */
+int fdisk_get_partition(struct fdisk_context *cxt, size_t partno,
+			struct fdisk_partition **pa)
+{
+	int rc;
+
+	if (!cxt || !cxt->label || !pa)
+		return -EINVAL;
+	if (!cxt->label->op->get_part)
+		return -ENOSYS;
+
+	if (!*pa) {
+		*pa = fdisk_new_partition();
+		if (!*pa)
+			return -ENOMEM;
+	} else
+		fdisk_reset_partition(*pa);
+	(*pa)->cxt = cxt;
+	(*pa)->partno = partno;
+	rc = cxt->label->op->get_part(cxt, partno, *pa);
+	if (rc == 0 && fdisk_partition_is_used(*pa))
+		DBG(PART, dbgprint("get partition %zu", partno));
+	return rc;
+}
+
+/*
+ * This is faster than fdisk_get_partition() + fdisk_partition_is_used()
+ */
+int fdisk_is_partition_used(struct fdisk_context *cxt, size_t n)
+{
+	if (!cxt || !cxt->label)
+		return -EINVAL;
+	if (!cxt->label->op->part_is_used)
+		return -ENOSYS;
+
+	return cxt->label->op->part_is_used(cxt, n);
+}
+
+/**
+ * fdisk_add_partition:
+ * @cxt: fdisk context
+ * @pa: template for the partition
+ *
+ * If @pa is not specified or any @pa item is missiong the libfdisk will ask by
+ * fdisk_ask_ API.
+ *
+ * Creates a new partition.
+ *
+ * Returns 0.
+ */
+int fdisk_add_partition(struct fdisk_context *cxt,
+			struct fdisk_partition *pa)
+{
+	assert(cxt);
+	assert(cxt->label);
+
+	if (!cxt || !cxt->label)
+		return -EINVAL;
+	if (!cxt->label->op->add_part)
+		return -ENOSYS;
+	if (fdisk_missing_geometry(cxt))
+		return -EINVAL;
+
+	DBG(LABEL, dbgprint("adding new partition"));
+	cxt->label->op->add_part(cxt, pa);
+	return 0;
+}
+
+/**
+ * fdisk_delete_partition:
+ * @cxt: fdisk context
+ * @partnum: partition number to delete
+ *
+ * Deletes a @partnum partition.
+ *
+ * Returns 0 on success, otherwise, a corresponding error.
+ */
+int fdisk_delete_partition(struct fdisk_context *cxt, size_t partnum)
+{
+	if (!cxt || !cxt->label)
+		return -EINVAL;
+	if (!cxt->label->op->part_delete)
+		return -ENOSYS;
+
+	DBG(LABEL, dbgprint("deleting %s partition number %zd",
+				cxt->label->name, partnum));
+	return cxt->label->op->part_delete(cxt, partnum);
+}