Re: Reporting hba lines

Magnus Hagander <magnus@hagander.net> writes:
> Turned out to be a bit more work than I thought, since the current
> parser reads pg_hba byte by byte, and not line by line. So I had to
> change that. See attached, seems reasonable?

A couple of comments:

* In some places you have "if ((c = *(*lineptr)++) != '\0')" and in other
places just "if ((c = *(*lineptr)++))".  This should be consistent (and
personally I prefer the first way).

* I'm not sure that this conversion is right:

!     if (c != EOF)
!         ungetc(c, fp);
---
!     if (c != '\0')
!         (*lineptr)--;

In the file case, it's impossible to push back EOF, and unnecessary
since another getc will produce EOF again anyway.  In the string case,
though, I think you might need to decrement the lineptr unconditionally,
else next call will run off the end of the string no?

* This bit seems a bit ugly, and not Windows-aware either:

!                         /* We don't store the trailing newline */
!                         if (rawline[strlen(rawline)-1] == '\n')
!                             rawline[strlen(rawline)-1] = '\0';
!

It might be better to strip trailing \n and \r from the line immediately
upon read, rather than here.
        regards, tom lane