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imd: export functions 

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

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2016-03-29 10:26:12 +02:00
parent 439d683051
commit b8837986a0
2 changed files with 32 additions and 3 deletions
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30
common/imd.c
View File

@ -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;

5
include/image-metadata.h
View File

@ -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[]);