[PATCH 5/7] imd: export functions

[Sascha Hauer]

To make the image metadata API usable for external users export
some functions.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 common/imd.c             | 30 +++++++++++++++++++++++++++---
 include/image-metadata.h |  5 +++++
 2 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/common/imd.c b/common/imd.c
index 318980b..06822bb 100644
--- a/common/imd.c
+++ b/common/imd.c
@@ -169,7 +169,13 @@ static struct imd_type_names imd_types[] = {
 	},
 };
 
-static const char *imd_type_to_name(uint32_t type)
+/**
+ * imd_type_to_name - convert a imd type to a name
+ * @type: The imd type
+ *
+ * This function returns a string representation of the imd type
+ */
+const char *imd_type_to_name(uint32_t type)
 {
 	int i;
 
@@ -191,7 +197,16 @@ static uint32_t imd_name_to_type(const char *name)
 	return IMD_TYPE_INVALID;
 }
 
-static const char *imd_string_data(struct imd_header *imd, int index)
+/**
+ * imd_string_data - get string data
+ * @imd: The IMD entry
+ * @index: The index of the string
+ *
+ * This function returns the string in @imd indexed by @index.
+ *
+ * Return: A pointer to the string or NULL if the string is not found
+ */
+const char *imd_string_data(struct imd_header *imd, int index)
 {
 	int i, total = 0, l = 0;
 	int len = imd_read_length(imd);
@@ -209,7 +224,16 @@ static const char *imd_string_data(struct imd_header *imd, int index)
 	return NULL;
 }
 
-static char *imd_concat_strings(struct imd_header *imd)
+/**
+ * imd_concat_strings - get string data
+ * @imd: The IMD entry
+ *
+ * This function returns the concatenated strings in @imd. The string
+ * returned is allocated with malloc() and the caller has to free() it.
+ *
+ * Return: A pointer to the string or NULL if the string is not found
+ */
+char *imd_concat_strings(struct imd_header *imd)
 {
 	int i, len = imd_read_length(imd);
 	char *str;
diff --git a/include/image-metadata.h b/include/image-metadata.h
index 34dae5c..33ca9c6 100644
--- a/include/image-metadata.h
+++ b/include/image-metadata.h
@@ -80,6 +80,11 @@ static inline uint32_t imd_read_length(struct imd_header *imd)
 
 struct imd_header *imd_find_type(struct imd_header *imd, uint32_t type);
 
+struct imd_header *imd_get(void *buf, int size);
+const char *imd_string_data(struct imd_header *imd, int index);
+const char *imd_type_to_name(uint32_t type);
+char *imd_concat_strings(struct imd_header *imd);
+
 extern int imd_command_verbose;
 int imd_command_setenv(const char *variable_name, const char *value);
 int imd_command(int argc, char *argv[]);
-- 
2.7.0