INNER CODE UNIT · C

padded

jedisct1/libsodium-php · libsodium.c:3835

    padded = zend_string_checked_alloc(xpadded_len + 1U, 0);
    if (unpadded_len > 0) {
        st = 1U;
        i = 0U;
        k = unpadded_len;
        for (j = 0U; j <= xpadded_len; j++) {
            ZSTR_VAL(padded)[j] = unpadded[i];
            k -= st;
            st = (size_t) (~(((( (((uint64_t) k) >> 48) | (((uint64_t) k) >> 32) |
                                 (k >> 16) | k) & 0xffff) - 1U) >> 16)) & 1U;
            i += st;
        }
    }
#if SODIUM_LIBRARY_VERSION_MAJOR > 9 || (SODIUM_LIBRARY_VERSION_MAJOR == 9 && SODIUM_LIBRARY_VERSION_MINOR >= 6)
    if (sodium_pad(NULL, (unsigned char *) ZSTR_VAL(padded), unpadded_len,
                   (size_t) blocksize, xpadded_len + 1U) != 0) {
        zend_throw_exception(sodium_exception_ce, "internal error", 0);
        return;

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