[TUHS] Also, relative to absolute pathnames?

[Warren Toomey via TUHS]

On a related note, is there a C function (or do you have source code) to
convert a relative pathname to an absolute one?

e.g.

// Given the current working directory and
// a pathname, return an absolute pathname
// with all '..' removed.
char *relpath_to_abs(char *cwd, char *path);

Before I try to write one I thought I'd ask around :-)

Thanks, Warren