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Path: utzoo!mnetor!seismo!columbia!topaz!mende
From: mende@topaz.RUTGERS.EDU (Mende)
Newsgroups: net.micro.amiga
Subject: possible bug in 1.1 file redirection
Message-ID: <5420@topaz.RUTGERS.EDU>
Date: Fri, 25-Jul-86 16:21:34 EDT
Article-I.D.: topaz.5420
Posted: Fri Jul 25 16:21:34 1986
Date-Received: Fri, 25-Jul-86 21:58:00 EDT
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 39
Keywords: file redirection , bug


  I am posting this for a friend of mine who has no access to the net.
I have looked at the problem and it baffles me.  So here it is....


/*
I am programming on an Amiga with Aztec C (developer's package) and have come
accross the following problem. It may be a bug in the Aztec compiler or a
bug in AmigaDOS.  My program is simply a filter to do a word-wrap on standard
ASCII files.  The program below is just enough to demonstrate the problem.
The below program should read standard input (line by line) and output it
(line by line) to standard output.  When I compile this (or the filter) and
issue the command:  THRU <MYFILE
Everything is fine.  If I issue the command:  THRU <MYFILE >FOO
then:  TYPE FOO
the output is different.  The end is cut off.  Why would this work if the
IO is sent to the screen but not to a file?  I have written filters before
but they worked purely on a getchar()/putchar() basis.  Could I be misusing
the fgets()/fputs() commands?

P.S.  THRU <MYFILE >* works fine too!
*/

#include <stdio.h>
#define MAXLINE	100
main()                  /* Program thru.c */
{
	register char *line[MAXLINE];

	while ( (fgets(line, MAXLINE, stdin)) != 0 )
		fputs(line, stdout);
}


                    Bob Mende
               posting for Tom Limoncelli

ARPA: MENDE@AIM.RUTGERS.EDU
UUCP: {anywhere}!{topaz!caip}!aim!mende