util/bin2h.c

   1 /*
   2  *  Copyright (C) 2008,2010  Free Software Foundation, Inc.
   3  *
   4  *  GRUB 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 3 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <config.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #define _GNU_SOURCE     1
  23 #include <getopt.h>
  24
  25 #include "progname.h"
  26
  27 static struct option options[] =
  28   {
  29     {"help", no_argument, 0, 'h' },
  30     {"version", no_argument, 0, 'V' },
  31     {0, 0, 0, 0 }
  32   };
  33
  34 static void
  35 usage (int status)
  36 {
  37   if (status)
  38     fprintf (stderr,
  39              "Try ``%s --help'' for more information.\n", program_name);
  40   else
  41     printf ("\
  42 Usage: %s [OPTIONS] SYMBOL-NAME\n\
  43 \n\
  44 Convert a binary file to a C header.\n\
  45 \n\
  46   -h, --help                display this message and exit\n\
  47   -V, --version             print version information and exit\n\
  48 \n\
  49 Report bugs to <%s>.\n\
  50 ", program_name, PACKAGE_BUGREPORT);
  51
  52   exit (status);
  53 }
  54
  55 int
  56 main (int argc, char *argv[])
  57 {
  58   int b, i;
  59   char *sym;
  60
  61   set_program_name (argv[0]);
  62
  63   /* Check for options.  */
  64   while (1)
  65     {
  66       int c = getopt_long (argc, argv, "snm:r:hVv", options, 0);
  67
  68       if (c == -1)
  69         break;
  70       else
  71         switch (c)
  72           {
  73           case 'h':
  74             usage (0);
  75             break;
  76
  77           case 'V':
  78             printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION);
  79             return 0;
  80
  81           default:
  82             usage (1);
  83             break;
  84           }
  85     }
  86
  87   if (optind >= argc)
  88     usage (1);
  89
  90   if (optind + 1 != argc)
  91     usage (1);
  92
  93   sym = argv[optind];
  94
  95   b = getchar ();
  96   if (b == EOF)
  97     goto abort;
  98
  99   printf ("/* THIS CHUNK OF BYTES IS AUTOMATICALY GENERATED */\n"
 100           "unsigned char %s[] =\n{\n", sym);
 101
 102   while (1)
 103     {
 104       printf ("0x%02x", b);
 105
 106       b = getchar ();
 107       if (b == EOF)
 108         goto end;
 109
 110       for (i = 0; i < 16 - 1; i++)
 111         {
 112           printf (", 0x%02x", b);
 113
 114           b = getchar ();
 115           if (b == EOF)
 116             goto end;
 117         }
 118
 119       printf (",\n");
 120     }
 121
 122 end:
 123   printf ("\n};\n");
 124
 125 abort:
 126   exit (0);
 127 }