fname against the filespec spec, not allowing * to match the path delimiter
if path is TRUE.

Consider doing the same for all .h files.
Consider the meaning of sanity.

present.

over-write backslash with forwardslash (rather than just appending it, creating
and invalid path string).

(* or ?) chars are present.  Doing so prevents re-writing of the path
parameter, so behaviour is different between the two.

This would break something like:
int munlink(char *glob)
{
        char    this[MAX_PATH+1];

        strcpy(this,glob);
        while(fexistcase(this)) {
                unlink(this);
                strcpy(this,glob);
        }
}

Does Synchronet rely on the old behaviour anywhere?

delimiter everywhere in the world.

filename is an absolute (no relative directories at all), or is a full (rooted)
path.

it doesn't return directory entries beginning with a period (e.g. '.' and '..')
unless the GLOB_PERIOD flag is specified.

filename) if passed a path that included both foward and back-slashes.

included in directory and '.' included in extensions.

path/filename (or NULL if no extension exists).

long filenames) on Win32.

Created IS_PATH_DELIM() macro (stole websrvr.c->is_slash macro).
Defines BSD _PATH_TMP and _PATH_DEVNULL macros for all platforms.

(truncates the slash before calling stat).

all platforms, removed realpath_r()

or shift).

megabytes, etc) by specifying an optional "unit" parameter.

using sprintf instead.