kernel/apps/fs/cat.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <system.h>
  21 #include <x86.h>
  22 #include <string.h>
  23
  24 #define WAIT    0xFFFFFL
  25
  26 static void wait (void)
  27 {
  28         unsigned long wait;
  29
  30         for(wait = WAIT; wait != 0; wait--)
  31                 /* nothing */;
  32 }
  33
  34 int cat (unsigned char *fi)
  35 {
  36         int i=0;
  37         unsigned char *test;
  38         DPRINT ("file = %s\n",fi);
  39
  40         unsigned fi_len = strlen (fi);
  41
  42         if (!fi_len) {
  43                 puts ("cat: invalid filename\n");
  44                 return 0;
  45         }
  46
  47         DPRINT ("fi: '%s' (%d)\n", fi, fi_len);
  48
  49         while (strlen (dir[i].name))
  50         {
  51                 if (!strncmp (fi, dir[i].name, fi_len))
  52                 {
  53                         unsigned long len = read_file (i);
  54                         test = file_cache;
  55                         //printf ("%s", file_cache);
  56                         for(i = 0; i < len; i++)
  57                         {
  58                                 //wait();
  59                                 putch (file_cache[i]);
  60                         }
  61                         printf ("len: %lu\n", len);
  62                         return 1;
  63                 }
  64                 i++;
  65         }
  66         printf ("No such file : %s\n",fi);
  67         return 0;
  68 }