support for mount by label (not yet tested)

Also adds findfs applet. Closes bug 1143.

2 files changed, 29 insertions, 0 deletions

diff --git a/include/usage.h b/include/usage.h
index 04ef1822e..d1878827b 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -1029,6 +1029,13 @@ USE_FEATURE_BRCTL_FANCY("\n" \
        "	-t		Get only headers\n" \
        "	-z		Delete messages on server"
 
+#define findfs_trivial_usage \
+       "LABEL=label or UUID=uuid"
+#define findfs_full_usage \
+       "Finds a filesystem device based on a label or UUID."
+#define findfs_example_usage \
+       "$ findfs LABEL=MyDevice"
+
 #define find_trivial_usage \
        "[PATH...] [EXPRESSION]"
 #define find_full_usage \
diff --git a/include/volume_id.h b/include/volume_id.h
new file mode 100644
index 000000000..99cb11ff6
--- /dev/null
+++ b/include/volume_id.h
@@ -0,0 +1,22 @@
+/*
+ * volume_id - reads filesystem label and uuid
+ *
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
+ *
+ *	This library is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU Lesser General Public
+ *	License as published by the Free Software Foundation; either
+ *	version 2.1 of the License, or (at your option) any later version.
+ *
+ *	This library is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *	Lesser General Public License for more details.
+ *
+ *	You should have received a copy of the GNU Lesser General Public
+ *	License along with this library; if not, write to the Free Software
+ *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+char *get_devname_from_label(const char *spec);
+char *get_devname_from_uuid(const char *spec);