hash: Export the function to show a hash

This function is useful for displaying a hash value, so export it.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/common/hash.c b/common/hash.c
index 7627b84b451421a599f378511eccd71639e450fe..41a4a28437770fc4aad7893e56339dee11e9e546 100644 (file)
--- a/common/hash.c
+++ b/common/hash.c
@@ -311,8 +311,7 @@ int hash_lookup_algo(const char *algo_name, struct hash_algo **algop)
        return -EPROTONOSUPPORT;
 }
 
-static void show_hash(struct hash_algo *algo, ulong addr, ulong len,
-                     u8 *output)
+void hash_show(struct hash_algo *algo, ulong addr, ulong len, u8 *output)
 {
        int i;
 
@@ -392,7 +391,7 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
                        if (memcmp(output, vsum, algo->digest_size) != 0) {
                                int i;
 
-                               show_hash(algo, addr, len, output);
+                               hash_show(algo, addr, len, output);
                                printf(" != ");
                                for (i = 0; i < algo->digest_size; i++)
                                        printf("%02x", vsum[i]);
@@ -400,7 +399,7 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag,
                                return 1;
                        }
                } else {
-                       show_hash(algo, addr, len, output);
+                       hash_show(algo, addr, len, output);
                        printf("\n");
 
                        if (argc) {

diff --git a/include/hash.h b/include/hash.h
index 2a3632623b75e57098d80195627e2f8e1946b637..5cb4dbfcb2bb671639ae9f06eb6a8dd15f43a256 100644 (file)
--- a/include/hash.h
+++ b/include/hash.h
@@ -126,5 +126,19 @@ int hash_block(const char *algo_name, const void *data, unsigned int len,
  * @return 0 if ok, -EPROTONOSUPPORT for an unknown algorithm.
  */
 int hash_lookup_algo(const char *algo_name, struct hash_algo **algop);
+
+/**
+ * hash_show() - Print out a hash algorithm and value
+ *
+ * You will get a message like this (without a newline at the end):
+ *
+ * "sha1 for 9eb3337c ... 9eb3338f ==> 7942ef1df479fd3130f716eb9613d107dab7e257"
+ *
+ * @algo:              Algorithm used for hash
+ * @addr:              Address of data that was hashed
+ * @len:               Length of data that was hashed
+ * @output:            Hash value to display
+ */
+void hash_show(struct hash_algo *algo, ulong addr, ulong len, u8 *output);
 #endif /* !USE_HOSTCC */
 #endif