Re: Replace remaining StrNCpy() by strlcpy()

On Mon, 3 Aug 2020 at 18:59, Peter Eisentraut
<peter(dot)eisentraut(at)2ndquadrant(dot)com> wrote:
> I propose to replace the remaining uses of StrNCpy() with strlcpy() and
> remove the former. It's clear that strlcpy() has won the popularity
> contest, and the presence of the former is just confusing now.

It certainly would be good to get rid of some of these, but are some
of the changes not a bit questionable?

e.g:

@@ -4367,7 +4367,7 @@ pgstat_send_archiver(const char *xlog, bool failed)
*/
pgstat_setheader(&msg.m_hdr, PGSTAT_MTYPE_ARCHIVER);
msg.m_failed = failed;
- StrNCpy(msg.m_xlog, xlog, sizeof(msg.m_xlog));
+ strlcpy(msg.m_xlog, xlog, sizeof(msg.m_xlog));
msg.m_timestamp = GetCurrentTimestamp();
pgstat_send(&msg, sizeof(msg));

Will mean that we'll now no longer zero the full length of the m_xlog
field after the end of the string. Won't that mean we'll start writing
junk bytes to the stats collector?

David