We have normpath() and readlink(), but how about realpath()?
Seems like a good thing to have in the posixmodule.
The man page for the C routine says:
char *realpath (const char *file_name, char *resolved_name);
DESCRIPTION
realpath resolves all links, symbolic links, and references to ``.'' and
``..'' in file_name and stores it in resolved_name.
It can handle both relative and absolute path names. For absolute path
names and the relative names whose resolved name cannot be expressed
relatively (for example, ../../reldir), it returns the resolved absolute
name.
resolved_name should point to a buffer (MAXPATHLEN) bytes in length to
contain the fully resolved path name.
-- ?!ng
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