libfdisk: add part_get_status operation

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

3 files changed, 30 insertions, 0 deletions

diff --git a/libfdisk/src/fdiskP.h b/libfdisk/src/fdiskP.h
index 8f9905d81..3a5ab4a7e 100644
--- a/libfdisk/src/fdiskP.h
+++ b/libfdisk/src/fdiskP.h
@@ -145,6 +145,11 @@ struct fdisk_label_operations {
 	int (*part_set_type)(struct fdisk_context *cxt, struct fdisk_label *lb,
 						int partnum,
 						struct fdisk_parttype *t);
+
+	/* returns FDISK_PARTSTAT_* flags */
+	int (*part_get_status)(struct fdisk_context *cxt, struct fdisk_label *lb,
+						int partnum, int *status);
+
 	/* refresh alignment setting */
 	int (*reset_alignment)(struct fdisk_context *cxt,
 						struct fdisk_label *lb);
diff --git a/libfdisk/src/label.c b/libfdisk/src/label.c
index 502df69b4..4716b94a6 100644
--- a/libfdisk/src/label.c
+++ b/libfdisk/src/label.c
@@ -229,6 +229,25 @@ size_t fdisk_get_nparttypes(struct fdisk_context *cxt)
 	return cxt->label->nparttypes;
 }
 
+/**
+ * fdisk_partition_is_used:
+ * @cxt: fdisk context
+ * @partnum: partition number
+ * @status: returns FDISK_PARTSTAT_* flags
+ *
+ * Returns 0 on success, otherwise, a corresponding error.
+ */
+int fdisk_partition_get_status(struct fdisk_context *cxt, int partnum, int *status)
+{
+	if (!cxt || !cxt->label)
+		return -EINVAL;
+	if (!cxt->label->op->part_get_status)
+		return -ENOSYS;
+
+	return cxt->label->op->part_get_status(cxt, cxt->label, partnum, status);
+}
+
+
 /*
  * Resets the current used label driver to initial state
  */
diff --git a/libfdisk/src/libfdisk.h b/libfdisk/src/libfdisk.h
index 379fb4d47..967d21e9a 100644
--- a/libfdisk/src/libfdisk.h
+++ b/libfdisk/src/libfdisk.h
@@ -43,6 +43,11 @@ enum fdisk_labeltype {
 	FDISK_DISKLABEL_ANY = -1
 };
 
+enum {
+	FDISK_PARTSTAT_NONE,
+	FDISK_PARTSTAT_USED	/* partition used */
+};
+
 /* init.c */
 extern void fdisk_init_debug(int mask);
 
@@ -90,6 +95,7 @@ extern int fdisk_set_partition_type(struct fdisk_context *cxt, int partnum,
 extern void fdisk_label_set_changed(struct fdisk_label *lb, int changed);
 extern int fdisk_label_is_changed(struct fdisk_label *lb);
 
+extern int fdisk_partition_get_status(struct fdisk_context *cxt, int partnum, int *status);
 
 /* alignment.c */
 extern int fdisk_reset_alignment(struct fdisk_context *cxt);