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Convert sha1b64_parse_hash() to make use of input_tokenizer()

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This commit is contained in:
jsteube 2018-06-30 10:25:10 +02:00
parent d36e70b598
commit 5728933cd2
2 changed files with 22 additions and 7 deletions
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2
include/interface.h
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@ -1295,8 +1295,6 @@ typedef enum display_len
DISPLAY_LEN_MAX_12 = 32 + 1 + 32,
DISPLAY_LEN_MIN_23 = 32 + 1 + 0,
DISPLAY_LEN_MAX_23 = 32 + 1 + SALT_MAX,
DISPLAY_LEN_MIN_101 = 5 + 28,
DISPLAY_LEN_MAX_101 = 5 + 28,
DISPLAY_LEN_MIN_111 = 6 + 28 + 1,
DISPLAY_LEN_MAX_111 = 6 + 28 + SALT_MAX,
DISPLAY_LEN_MIN_112 = 40 + 1 + 20,

27
src/interface.c
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@ -5348,15 +5348,32 @@ int pstoken_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UN
int sha1b64_parse_hash (u8 *input_buf, u32 input_len, hash_t *hash_buf, MAYBE_UNUSED hashconfig_t *hashconfig)
{
if ((input_len < DISPLAY_LEN_MIN_101) || (input_len > DISPLAY_LEN_MAX_101)) return (PARSER_GLOBAL_LENGTH);
if (memcmp (SIGNATURE_SHA1B64, input_buf, 5) != 0) return (PARSER_SIGNATURE_UNMATCHED);
u32 *digest = (u32 *) hash_buf->digest;
token_t token;
token.token_cnt = 2;
token.signature = SIGNATURE_SHA1B64;
token.len[0] = 5;
token.attr[0] = TOKEN_ATTR_FIXED_LENGTH
| TOKEN_ATTR_VERIFY_SIGNATURE;
token.len_min[1] = 28;
token.len_max[1] = 28;
token.attr[1] = TOKEN_ATTR_VERIFY_LENGTH
| TOKEN_ATTR_VERIFY_BASE64A;
const int rc_tokenizer = input_tokenizer (input_buf, input_len, &token);
if (rc_tokenizer != PARSER_OK) return (rc_tokenizer);
u8 *hash_pos = token.buf[1];
int hash_len = token.len[1];
u8 tmp_buf[100] = { 0 };
base64_decode (base64_to_int, (const u8 *) input_buf + 5, input_len - 5, tmp_buf);
base64_decode (base64_to_int, hash_pos, hash_len, tmp_buf);
memcpy (digest, tmp_buf, 20);