If pad is false, we discard any bits which don't fit in the last byte. * Otherwise we add an extra byte */
| 55 | /* If pad is false, we discard any bits which don't fit in the last byte. |
| 56 | * Otherwise we add an extra byte */ |
| 57 | static bool pull_bits(struct hash_u5 *hu5, |
| 58 | u5 **data, size_t *data_len, void *dst, size_t nbits, |
| 59 | bool pad) |
| 60 | { |
| 61 | size_t n5 = nbits / 5; |
| 62 | size_t len = 0; |
| 63 | |
| 64 | if (nbits % 5) |
| 65 | n5++; |
| 66 | |
| 67 | if (*data_len < n5) |
| 68 | return false; |
| 69 | if (!bech32_convert_bits(dst, &len, 8, *data, n5, 5, pad)) |
| 70 | return false; |
| 71 | if (hu5) |
| 72 | hash_u5(hu5, *data, n5); |
| 73 | *data += n5; |
| 74 | *data_len -= n5; |
| 75 | |
| 76 | return true; |
| 77 | } |
| 78 | |
| 79 | /* For pulling fields where we should have checked it will succeed already. */ |
| 80 | #ifndef NDEBUG |
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