Function bech32_convert_bits

common/bech32.c:157–177

}

int bech32_convert_bits(uint8_t* out, size_t* outlen, int outbits, const uint8_t* in, size_t inlen, int inbits, int pad) {
    uint32_t val = 0;
    int bits = 0;
    uint32_t maxv = (((uint32_t)1) << outbits) - 1;
    while (inlen--) {
        val = (val << inbits) | *(in++);
        bits += inbits;
        while (bits >= outbits) {
            bits -= outbits;
            out[(*outlen)++] = (val >> bits) & maxv;
        }
    }
    if (pad) {
        if (bits) {
            out[(*outlen)++] = (val << (outbits - bits)) & maxv;
        }
    } else if (((val << (outbits - bits)) & maxv) || bits >= inbits) {
        return 0;
    }
    return 1;
}

int segwit_addr_encode(char *output, const char *hrp, int witver, const uint8_t *witprog, size_t witprog_len) {
    uint8_t data[65];