Subject: Mailing list and assn1

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Assignment 1 is available in the assns directory. It
is due at midnight Friday.

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How to compile:

gcc -g -Wall main.c

should produce NO COMPILER WARNINGS:

The following collection of header files seems sufficient
to eliminate warnings on both my Linux and Sun system.

#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>


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A question has been asked regarding how to detect end
of file with low level I/O.  The answer is that the
proper way is the same as with standard library I/O.

If the value returned by the read() function is <= 0
you may asssume end of file has occured:

   if ((len = read(0, buf, 1)) <= 0)
   {
      printf("End of file \n");
   }
   else
   {
      printf("I just read %d bytes \n", len);
   }

Any method that depends upon the use of mythical
or mystical symbols such as EOF almost certainly
WILL NOT WORK RELIABLY.

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