[Bro] Patch for 1.3? Was: Type conversion and table initialization

[Mike Dopheide]

Would it be possible to get this added in before the 1.3 release?

Thanks,
Mike

Mike Dopheide wrote:
> Haha.. you beat me to it.  Here's what I was about to submit (patch 
> attached):
> 
> # Returns an addr from a string
> function rawstring_to_addr%(s: string%): addr
>        %{
>        char* x = new char[16];
>        const u_char* sp = s->Bytes();
> 
>        if(s->Len() != 4){
>                sprintf(x,"0.0.0.0");
>        }else{
>                sprintf(x,"%i.%i.%i.%i",sp[0],sp[1],sp[2],sp[3]);
>        }
> 
>        Val* ret = new AddrVal(x);
>        delete [] x;
>        return ret;
>        %}
> 
> 
> 
> Mark Dedlow wrote:
>> Robin Sommer wrote:
>>> On Tue, Feb 27, 2007 at 17:25 -0600, Mike Dopheide wrote:
>>>
>>>> I've got a udp packet that contains an IP address in the packet
>>>> contents[*]. 
>>>
>>> Hmmm... can't think of any other way than adding a new built-in
>>> ffunction specifically for this.
>>
>> I think this is as simple as adding to bro.bif:
>>
>> function hex_to_addr%(str: string%): addr
>>     %{
>>     int a,b,c,d;
>>     int r;
>>     r = sscanf(str->CheckString(), "%x.%x.%x.%x", &a, &b, &c, &d);
>>     if ( r != 4 )
>>         run_time("hex addr not parseable");
>>     return new AddrVal(dotted_to_addr(fmt("%d.%d.%d.%d", a,b,c,d)));
>>     %}
>>
>>
>> You may need to tweak the format, eg, for the \x format, to something
>> like "\\x%x\\x%x\\x%x\\x%x".
>>
>> Mark
>>
>>
> 
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