[U-Boot-Users] [PATCH] TFTP: add host ip addr support

[Ben Warren <biggerbadderben@gmail.com>]

Wolfgang Denk wrote:
> In message <478E6D5A.4070807@gmail.com> you wrote:
>   
>> #define MAX_LEN 80
>> static char tftp_filename[MAX_LEN + 1];
>> memset(tftp_filename[MAX_LEN], 0, 1);
>>     
>
> warning: passing argument 1 of 'memset' makes pointer from integer without a cast
>
>   
10-second response, brain not fully engaged.  Compiler not used (duh?)
>> strncpy(tftp_filename, str, MAX_LEN);
>>
>>
>> Better?
>>     
>
> No, definitely not.
>
> First, the compiler will issue a warning; second, using  memcpy()  to
> store  a  single character is serious overkill - why don't you simply
> use "tftp_filename[MAX_LEN] = '\0';" ?;and third - the real bug - the
> strncpy will happily overwrite the 0 you placed there before.
>
>   
strncpy won't touch the zero, since it's in the 81st byte and strncpy 
will only copy 80.  True about the warnings and memset overkill, though.

OK, let's move on...

Jean-Christophe - Jason McMullen has given you a nice prototype.  Please 
use it.

regards,
Ben