于 2013年03月05日 11:37, Ben Hutchings 写道:

quoted

  I think what I have done is just like your choice "2."

quoted

  for me, I think they are equal:

-		strncpy(ctr.name, names[i], sizeof(ctr.name) - 1);
+		strlcpy(ctr.name, names[i], sizeof(ctr.name));


		strncpy(ctr.name, names[i], sizeof(ctr.name) - 1);
+ 		ctr.name[sizeof(ctr.name) - 1] = '\0';

They are not.  strncpy() pads with zeroes to the end of the given buffer
whereas strlcpy() adds only a single zero byte (and truncates if
necessary to fit the zero byte).

  ok, thank you. they are really not the same (originally, I did not
notice it)

  could you supply the reason:
    why need we zero all of ctr.name ?
    (for me, I think, keeping ctr.name just a zero-based string is ok)

  thanks.

  :-)

-- 
Chen Gang

Asianux Corporation