ls & file pipes (FIFO), curses...

[Rich Stevens]

In article <471 at bria> uunet!bria!mike writes:
>
>A file that is a named pipe shoould have S_IFIFO set in st_mode;
>such as:
>
>	if ( stat(file,&buf) != -1 && buf.st_mode & S_IFIFO )
                                      ^^^^^^^^^^^^^^^^^^^^^

You can't do this.  You *must* mask the st_mode member with S_IFMT
and then test for equality with the various file types.  Better yet,
use the POSIX-style S_ISxxx() macros.  The piece above should be

		((buf.st_mode & S_IFMT) == S_IFIFO)

For example, on SunOS "st_mode & S_IFREG" will be true for a regular file,
a sybolic link, and a socket.  Take a look at <sys.stat.h>.  Only 4 bits
are used to code 7 different values.

	Rich Stevens