void verify()

in uf2tool/tool.c [153:175]

• 23 lines of code
• 5 McCabe index (conditional complexity)

void verify(HID_Dev *cmd, uint8_t *buf, int size, int offset) {
    int maxSize = (cmd->pageSize / 2 - 12) * cmd->pageSize;
    while (size > maxSize) {
        verify(cmd, buf, maxSize, offset);
        buf += maxSize;
        offset += maxSize;
        size -= maxSize;
    }
    int numpages = size / cmd->pageSize;
    write32(cmd->buf + 8, offset);
    write32(cmd->buf + 12, numpages);
    talk_hid(cmd, HF2_CMD_CHKSUM_PAGES, 0, 8);
    for (int i = 0; i < numpages; ++i) {
        int sum = read16(cmd->buf + 4 + i * 2);
        uint16_t crc = 0;
        for (int j = 0; j < cmd->pageSize; ++j) {
            crc = add_crc(buf[j], crc);
        }
        if (sum != crc)
            fatal("verification failed");
        buf += cmd->pageSize;
    }
}