Add supporting functions vg_name_dup, vg_fmt_dup, vg_system_id_dup.

Add supporting functions for vg_name, vg_fmt, vg_system_id.
Append "_dup" to end of supporting functions to make clear the strings
are dup'd and to avoid namespace conflict with vg_name.

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/metadata/vg.c b/lib/metadata/vg.c
index c79f1365..05477b23 100644
--- a/lib/metadata/vg.c
+++ b/lib/metadata/vg.c
@@ -16,6 +16,23 @@
 #include "metadata.h"
 #include "activate.h"
 
+char *vg_fmt_dup(const struct volume_group *vg)
+{
+	if (!vg->fid || !vg->fid->fmt)
+		return NULL;
+	return dm_pool_strdup(vg->vgmem, vg->fid->fmt->name);
+}
+
+char *vg_name_dup(const struct volume_group *vg)
+{
+	return dm_pool_strdup(vg->vgmem, vg->name);
+}
+
+char *vg_system_id_dup(const struct volume_group *vg)
+{
+	return dm_pool_strdup(vg->vgmem, vg->system_id);
+}
+
 char *vg_uuid_dup(const struct volume_group *vg)
 {
 	return id_format_and_copy(vg->vgmem, &vg->id);