When will fopen fail?

[Doug Gwyn]

In article <1991Apr17.202735.12427 at ux1.cso.uiuc.edu> gordon at osiris.cso.uiuc.edu (John Gordon) writes:
>	Well, it could fail if the process has reached the limit of
>simultaneous open files.  Or if the filename is not valid.  Or if the
>filename is actually a device.

Or if the network link is down, or if proper access permissions are
not present, or ...

Basically, there are too many possible reasons for failure to make it
practical to worry about what they all are in detail.