Andrew Morton wrote:
> On Fri, 22 Aug 2008 14:17:18 -0500
> Steve Wise <[EMAIL PROTECTED]> wrote:
>
>   
>> Andrew Morton wrote:
>>     
>>>> +  unsigned long octet;
>>>> +  const char *parse = buf;
>>>> +  char *endp;
>>>> +  int i;
>>>> +
>>>> +  for (i = 1; i <= 4; i++) {
>>>> +          octet = simple_strtoul(parse, &endp, 10);
>>>> +          if (endp == buf || octet > 255 ||
>>>> +              (i < 4 && *endp != '.') ||
>>>> +              (i == 4 && *endp != '\0' && *endp != '\n'))
>>>> +                  return -EINVAL;
>>>> +          a = (a << 8) | octet;
>>>> +          parse = endp+1;
>>>> +  }
>>>> +  pi->iscsi_ipaddr = htonl(a);
>>>> +  return endp-buf;
>>>> +}
>>>>     
>>>>         
>>> This appears to be taking a dotted quad ipv4 address in ascii form,
>>> turning it into a u32 while performing checking?
>>>
>>> Surely we have a library function somewhere in networking which does
>>> this?  If not, I'd suggest writing one. 
>>>
>>>   
>>>       
>> try in_aton() from include/linux/inet.h.
>>
>>     
>
> yeah.  But that function is a crock.  No error checking at all!
>   

Oh you want error checking?

:)

Yea if this is a user/sysadmin supplied value, then we need a rubust 
inet_aton() in the kernel to validate it...



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