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

[Wolfgang Denk]

In message <478E6D5A.4070807 at 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

> 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.

Best regards,

Wolfgang Denk

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