Helper for pulling a variable-length big-endian int. */
| 63 | |
| 64 | /* Helper for pulling a variable-length big-endian int. */ |
| 65 | static const char *pull_uint(struct hash_u5 *hu5, |
| 66 | const u5 **data, size_t *data_len, |
| 67 | u64 *val, size_t databits, |
| 68 | bool must_be_minimal) |
| 69 | { |
| 70 | be64 be_val; |
| 71 | const char *err; |
| 72 | |
| 73 | /* Too big. */ |
| 74 | if (databits > sizeof(be_val) * CHAR_BIT) |
| 75 | return "integer too large"; |
| 76 | if (must_be_minimal |
| 77 | && databits >= 5 |
| 78 | && *data_len > 1 |
| 79 | && (*data)[0] == 0) |
| 80 | return "not a minimal value"; |
| 81 | err = pull_bits(hu5, data, data_len, &be_val, databits, true); |
| 82 | if (err) |
| 83 | return err; |
| 84 | if (databits == 0) |
| 85 | *val = 0; |
| 86 | else |
| 87 | *val = be64_to_cpu(be_val) >> |
| 88 | (sizeof(be_val) * CHAR_BIT - databits); |
| 89 | return NULL; |
| 90 | } |
| 91 | |
| 92 | static void *pull_all(const tal_t *ctx, |
| 93 | struct hash_u5 *hu5, |
no test coverage detected