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crypto: digest: Make string arguments const 

Most string arguments for keys and filenames can be const. Change
that.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2015-03-12 08:06:08 +01:00
parent 102d59f91f
commit ac2407db7a
2 changed files with 19 additions and 18 deletions
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18
crypto/digest.c
View File

@ -28,7 +28,7 @@
static LIST_HEAD(digests);
static struct digest_algo* digest_algo_get_by_name(char* name);
static struct digest_algo* digest_algo_get_by_name(const char *name);
static int dummy_init(struct digest *d)
{
@ -69,7 +69,7 @@ void digest_algo_unregister(struct digest_algo *d)
}
EXPORT_SYMBOL(digest_algo_unregister);
static struct digest_algo *digest_algo_get_by_name(char* name)
static struct digest_algo *digest_algo_get_by_name(const char *name)
{
struct digest_algo* d;
@ -84,7 +84,7 @@ static struct digest_algo *digest_algo_get_by_name(char* name)
return NULL;
}
struct digest *digest_alloc(char* name)
struct digest *digest_alloc(const char *name)
{
struct digest* d;
struct digest_algo* algo;
@ -115,8 +115,8 @@ void digest_free(struct digest *d)
}
EXPORT_SYMBOL_GPL(digest_free);
int digest_file_window(struct digest *d, char *filename,
unsigned char *key, size_t keylen,
int digest_file_window(struct digest *d, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash,
ulong start, ulong size)
{
@ -189,8 +189,8 @@ out:
}
EXPORT_SYMBOL_GPL(digest_file_window);
int digest_file(struct digest *d, char *filename,
unsigned char *key, size_t keylen,
int digest_file(struct digest *d, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash)
{
struct stat st;
@ -205,8 +205,8 @@ int digest_file(struct digest *d, char *filename,
}
EXPORT_SYMBOL_GPL(digest_file);
int digest_file_by_name(char *algo, char *filename,
unsigned char *key, size_t keylen,
int digest_file_by_name(const char *algo, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash)
{
struct digest *d;

19
include/digest.h
View File

@ -31,7 +31,7 @@ struct digest_algo {
int (*init)(struct digest *d);
int (*update)(struct digest *d, const void *data, unsigned long len);
int (*final)(struct digest *d, unsigned char *md);
int (*set_key)(struct digest *d, unsigned char *key, unsigned int len);
int (*set_key)(struct digest *d, const unsigned char *key, unsigned int len);
unsigned int length;
unsigned int ctx_length;
@ -50,18 +50,18 @@ struct digest {
int digest_algo_register(struct digest_algo *d);
void digest_algo_unregister(struct digest_algo *d);
struct digest *digest_alloc(char* name);
struct digest *digest_alloc(const char *name);
void digest_free(struct digest *d);
int digest_file_window(struct digest *d, char *filename,
unsigned char *key, size_t keylen,
int digest_file_window(struct digest *d, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash,
ulong start, ulong size);
int digest_file(struct digest *d, char *filename,
unsigned char *key, size_t keylen,
int digest_file(struct digest *d, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash);
int digest_file_by_name(char *algo, char *filename,
unsigned char *key, size_t keylen,
int digest_file_by_name(const char *algo, const char *filename,
const unsigned char *key, size_t keylen,
unsigned char *hash);
static inline int digest_init(struct digest *d)
@ -85,7 +85,8 @@ static inline int digest_length(struct digest *d)
return d->algo->length;
}
static inline int digest_set_key(struct digest *d, unsigned char *key, unsigned int len)
static inline int digest_set_key(struct digest *d, const unsigned char *key,
unsigned int len)
{
if (!d->algo->set_key)
return -ENOTSUPP;