Does anybody have any idea what this code means and what the result is

Does anyone know what this code means?

char* ReadRef(const char* ref, const char* cmds)
{
    //cmss:     id:asd pass:123456
    //ref:         id:
    for (int i = 0; cmds[i]; i++)
    {
        if (cmds[i] == ref[0])
        {
            bool bfind = true;
            int x= 0;
            for (x = 0; ref[x]; x++)
            {
                if (ref[x] != cmds[i + x])
                {
                    bfind = false;
                    break;
                }
            }
            if (bfind) return (char*)&cmds[i + x];
        }
    }
    return nullptr;
}

I can't figure out the logic of this code. Is there anyone who can give me some advice?

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- line < br / > modify the problem again, logic probably figure it out, but if in the judgment,(ref [x]! = cmds[i+x]), why cmds is i+x instead of x, and return cms[i+x], why i+x here, cmds[i+x] represents a single character, here should return a string of characters for