[wplug] I'm a Linux whimp (need kernel help)

[Chester R. Hosey]

On Mon, 2005-08-15 at 11:58 -0400, Poyner, Brandon wrote:
> > Even very simple things like /usr/bin/yes
> > have increased nearly 50% since RHEL 8.0.  Don't get me started on how
> > little disk space you could install earlier versions on.
> > 
> > RH8.0  -rwxr-xr-x  1 root root 10488 Aug 29  2002 /usr/bin/yes
> > RH9    -rwxr-xr-x  1 root root 11100 Oct 29  2003 /usr/bin/yes
> > FC2    -rwxr-xr-x  1 root root 14532 May  4  2004 /usr/bin/yes
> > FC3    -rwxr-xr-x  1 root root 15216 Oct  5  2004 /usr/bin/yes
> > RHEL 4 -rwxr-xr-x  1 root root 15216 Feb 22 11:18 /usr/bin/yes
> 
> In case anybody is wondering why I'm picking on /usr/bin/yes, here's the
> (minus useless header info) BSD source code to /usr/bin/yes.  I'm not
> sure what the GNU version looks like but I'd be shocked if it was much
> bigger.
> 
> #include <stdio.h>
> 
> int
> main(argc, argv)
>         int argc;
>         char **argv;
> {
>         if (argc > 1)
>                 for(;;)
>                         puts(argv[1]);
>         else for (;;)
>                 puts("y");
> }
> 

Just for kicks...

Being GNU it supports --help, behaves pedantically correct if you set
POSIXLY_CORRECT, and supports internationalization. The preprocessed
version looks cleaner, and I'm pretty sure the internationalization part
makes me want to cry a little.

>From pristine coreutils 5.2.1 sources:

/* yes - output a string repeatedly until killed
   Copyright (C) 1991-1997, 1999-2004 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
Foundation,
   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* David MacKenzie <djm at gnu.ai.mit.edu> */

#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#include <getopt.h>

#include "system.h"

#include "error.h"
#include "long-options.h"

/* The official name of this program (e.g., no `g' prefix).  */
#define PROGRAM_NAME "yes"

#define AUTHORS "David MacKenzie"

/* The name this program was run with. */
char *program_name;

void
usage (int status)
{
  if (status != EXIT_SUCCESS)
    fprintf (stderr, _("Try `%s --help' for more information.\n"),
  else
    {
      printf (_("\
Usage: %s [STRING]...\n\
  or:  %s OPTION\n\
"),
              program_name, program_name);

      fputs (_("\
Repeatedly output a line with all specified STRING(s), or `y'.\n\
\n\
"), stdout);
      fputs (HELP_OPTION_DESCRIPTION, stdout);
      fputs (VERSION_OPTION_DESCRIPTION, stdout);
      printf (_("\nReport bugs to <%s>.\n"), PACKAGE_BUGREPORT);
    }
  exit (status);
}

int
main (int argc, char **argv)
{
  initialize_main (&argc, &argv);
  program_name = argv[0];
  setlocale (LC_ALL, "");
  bindtextdomain (PACKAGE, LOCALEDIR);
  textdomain (PACKAGE);

  atexit (close_stdout);

  /* Don't recognize --help or --version if POSIXLY_CORRECT is set.  */
  if (getenv ("POSIXLY_CORRECT") == NULL)
    parse_long_options (argc, argv, PROGRAM_NAME, GNU_PACKAGE, VERSION,
                        usage, AUTHORS, (char const *) NULL);

  if (argc == 1)
    {
      argv[1] = "y";
      argc = 2;
    }

  for (;;)
    {
      int i;
      for (i = 1; i < argc; i++)
        if (fputs (argv[i], stdout) == EOF
            || putchar (i == argc - 1 ? '\n' : ' ') == EOF)
          {
            error (0, errno, _("standard output"));
            exit (EXIT_FAILURE);
          }
    }
}