Possible NULL dereference with memcpy

[partimScurra]

I stumbled across this issue with a static analyzer. If src is NULL, but srclen is not, there is no continue statement like in a preceding block:

tds_fdw/src/tds_fdw.c

Lines 1931 to 1936 in 8ac2e0b

	else if (src == NULL)
	{
	ereport(DEBUG3,
	(errmsg("tds_fdw: %s: Column value pointer is NULL, but probably shouldn't be", column->name)
	));
	}

This may create a possibility of executing memcpy with a NULL-pointer:

tds_fdw/src/tds_fdw.c

Line 1967 in 8ac2e0b

memcpy(VARDATA(bytes), src, srclen);