diff options
author | Tom Rini <trini@konsulko.com> | 2016-01-05 08:47:48 -0500 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2016-01-13 21:05:08 -0500 |
commit | 48ad68deb8f3f2046aad4197e7b1bc70533b4bb2 (patch) | |
tree | 6e25289f3a294bb3a8df66b9bd45ea11b3545bb0 | |
parent | d29892ba854f40980b84f86566cd0c2308c66afe (diff) |
hash.c: Conditionally compile hash_command, static hash_show
The function hash_show is now only called by hash_command, so mark it as
static (and drop from hash.h). We only call hash_command when any of
CONFIG_CMD_CRC32, CONFIG_CMD_SHA1SUM or CONFIG_CMD_HASH are set. Since
hash.c is linked in unconditionally we must take extra care with
functions that bring in read-only strings as these will not be
discarded.
Signed-off-by: Tom Rini <trini@konsulko.com>
-rw-r--r-- | common/hash.c | 48 | ||||
-rw-r--r-- | include/hash.h | 15 |
2 files changed, 25 insertions, 38 deletions
diff --git a/common/hash.c b/common/hash.c index a1b048204d..41de4df536 100644 --- a/common/hash.c +++ b/common/hash.c @@ -247,6 +247,29 @@ int hash_parse_string(const char *algo_name, const char *str, uint8_t *result) return 0; } +int hash_block(const char *algo_name, const void *data, unsigned int len, + uint8_t *output, int *output_size) +{ + struct hash_algo *algo; + int ret; + + ret = hash_lookup_algo(algo_name, &algo); + if (ret) + return ret; + + if (output_size && *output_size < algo->digest_size) { + debug("Output buffer size %d too small (need %d bytes)", + *output_size, algo->digest_size); + return -ENOSPC; + } + if (output_size) + *output_size = algo->digest_size; + algo->hash_func_ws(data, len, output, algo->chunk_size); + + return 0; +} + +#if defined(CONFIG_CMD_HASH) || defined(CONFIG_CMD_SHA1SUM) || defined(CONFIG_CMD_CRC32) /** * store_result: Store the resulting sum to an address or variable * @@ -359,7 +382,7 @@ static int parse_verify_sum(struct hash_algo *algo, char *verify_str, return 0; } -void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) +static void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) { int i; @@ -368,28 +391,6 @@ void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) printf("%02x", output[i]); } -int hash_block(const char *algo_name, const void *data, unsigned int len, - uint8_t *output, int *output_size) -{ - struct hash_algo *algo; - int ret; - - ret = hash_lookup_algo(algo_name, &algo); - if (ret) - return ret; - - if (output_size && *output_size < algo->digest_size) { - debug("Output buffer size %d too small (need %d bytes)", - *output_size, algo->digest_size); - return -ENOSPC; - } - if (output_size) - *output_size = algo->digest_size; - algo->hash_func_ws(data, len, output, algo->chunk_size); - - return 0; -} - int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { @@ -473,3 +474,4 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, return 0; } #endif +#endif diff --git a/include/hash.h b/include/hash.h index e6d0f1db92..d81433772f 100644 --- a/include/hash.h +++ b/include/hash.h @@ -114,21 +114,6 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, int hash_block(const char *algo_name, const void *data, unsigned int len, uint8_t *output, int *output_size); -/** - * 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, - uint8_t *output); - #endif /* !USE_HOSTCC */ /** |