> No offense meant, but doesn't this show precisely what CVS's strength
> is?  Had you recorded the fix, we wouldn't be still looking for it :-)

It shows that I should keep better
records of what I do each day.

Even if I had the CVS source under
CVS, I probably would have thrown out
the repository when I ported the new one.
Further, I'm not sure whether the bug was
in CVS or in APE.

If I remembered what was broken,
I could run history to find it.

Case in point: I just found it, by
poking around for files in /sys/src/ape
modified about the same date as when I
ported the new CVS (which I remember being
near when I found the bug).

CVS wouldn't have helped any more than the
dump here.

The bug is in /sys/src/ape/lib/ap/plan9/getcwd.c.
Replace the entire file with:

#include "lib.h"
#include <stddef.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include "sys9.h"
#include "dir.h"

char*
getcwd(char *buf, size_t len)
{
	int fd;

	fd = _OPEN(".", OREAD);
	if(fd < 0) {
		errno = EACCES;
		return 0;
	}
	if(_FD2PATH(fd, buf, len) < 0) {
		errno = EIO;
		_CLOSE(fd);
		return 0;
	}
	_CLOSE(fd);

	return buf;
}

Exercise to the reader: find the fd leak in the
original.

Russ