src/yes.c

   1 /* yes - output a string repeatedly until killed
   2    Copyright (C) 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 /* David MacKenzie <djm@gnu.ai.mit.edu> */
  19
  20 #include <config.h>
  21 #include <stdio.h>
  22 #include <sys/types.h>
  23 #include <getopt.h>
  24
  25 #include "system.h"
  26 #include "long-options.h"
  27
  28 /* The name this program was run with. */
  29 char *program_name;
  30
  31 static void
  32 usage (int status)
  33 {
  34   if (status != 0)
  35     fprintf (stderr, _("Try `%s --help' for more information.\n"),
  36              program_name);
  37   else
  38     {
  39       printf (_("Usage: %s [OPTION]... [STRING]...\n"), program_name);
  40       printf (_("\
  41 Repeatedly output a line with all specified STRING(s), or `y'.\n\
  42 \n\
  43   --help      display this help and exit\n\
  44   --version   output version information and exit\n"));
  45       puts (_("\nReport bugs to <bug-sh-utils@gnu.org>."));
  46     }
  47   exit (status);
  48 }
  49
  50 int
  51 main (int argc, char **argv)
  52 {
  53   program_name = argv[0];
  54   setlocale (LC_ALL, "");
  55   bindtextdomain (PACKAGE, LOCALEDIR);
  56   textdomain (PACKAGE);
  57
  58   /* Don't recognize --help or --version if POSIXLY_CORRECT is set.  */
  59   if (getenv ("POSIXLY_CORRECT") == NULL)
  60     parse_long_options (argc, argv, "yes", GNU_PACKAGE, VERSION, usage);
  61
  62   if (argc == 1)
  63     while (1)
  64       puts ("y");
  65
  66   while (1)
  67     {
  68       int i;
  69
  70       for (i = 1; i < argc; i++)
  71         {
  72           fputs (argv[i], stdout);
  73           putchar (i == argc - 1 ? '\n' : ' ');
  74         }
  75     }
  76 }