These system calls provide a means to access a file given the file handle
As this method bypasses directory access restrictions, these calls are
restricted to the superuser.
opens the file referenced by
for reading and/or writing as specified by the argument
and returns the file descriptor to the calling process.
is specified by
together the flags used for the
All said flags are valid except for
provide the functionality of the
calls except that they return information for the file referred to by
rather than an open file.