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Make hash functions return error value

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Some crypto libraries can return in these functions (e.g., if a specific
hash function is disabled), so we better provide the caller a chance to
check whether the call failed. The return values are not yet used
anywhere, but they will be needed for future changes.
This commit is contained in:
Jouni Malinen 2009-08-16 14:06:00 +03:00
parent e1ffdfc18b
commit 0a5d68aba5
16 changed files with 153 additions and 94 deletions
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5
src/crypto/sha1-internal.c
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@ -37,9 +37,9 @@ void SHA1Transform(u32 state[5], const unsigned char buffer[64]);
* @addr: Pointers to the data areas
* @len: Lengths of the data blocks
* @mac: Buffer for the hash
* Returns: 0 on success, -1 of failure
*/
void sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len,
u8 *mac)
int sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
{
SHA1_CTX ctx;
size_t i;
@ -48,6 +48,7 @@ void sha1_vector(size_t num_elem, const u8 *addr[], const size_t *len,
for (i = 0; i < num_elem; i++)
SHA1Update(&ctx, addr[i], len[i]);
SHA1Final(mac, &ctx);
return 0;
}